Fix tar handling

Begin implementation of shared logic between CIF and VSTP packages.

.dockerignore

@@ -9,6 +9,9 @@
 *.dylib
 message-logs
 
+cif_debug_data
+EXAMPLE_CIF_FILES
+
 # Test binary, built with `go test -c`
 *.test
 

.gitea/workflows/go-test.yaml

@@ -0,0 +1,23 @@
+name: Go Test
+
+on:
+  push:
+
+jobs:
+  test:
+    env:
+      RUNNER_TOOL_CACHE: /toolcache
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version-file: ./go.mod
+          cache: true
+
+      - name: Run tests
+        run: go test ./...

.gitignore

@@ -9,6 +9,13 @@
 *.dylib
 message-logs
 
+# Manually built binaries
+main
+timetable-mgr
+
+# Debug data
+cif_debug_data
+
 # Test binary, built with `go test -c`
 *.test
 

Dockerfile

@@ -1,8 +1,9 @@
 FROM golang:alpine as builder
 WORKDIR /source
-COPY ./src .
+COPY . .
 RUN go build .
 
-FROM scratch
+FROM alpine:latest
-COPY --from=builder /source/mq-client /bin/mq-client
+COPY --from=builder /source/timetable-mgr /bin/timetable-mgr
-CMD [ "/bin/mq-client" ]
+USER 20400
+CMD [ "/bin/timetable-mgr" ]

README.md

@@ -1,5 +1,41 @@
-# mq-client
+# timetable-mgr
 
-Client for these message queue feeds:
+timetable-mgr is the new name for mq-client.
 
- - VSTP Schedule data
+It has been extended to manage all timetable management aspects within OwlBoard:
+ - Periodic fetch of CORPUS Location Data
+ - Periodic fetch of Knowledgebase Stations data
+ - Daily fetch of Network Rail timetable files
+ - Subscribe to VSTP Messages from the MQ Feed
+ - Update the database with new timetable data
+ - Clean old services from the database
+
+The configuration options have also been changed to support simple files, this allows support for Docker Secrets as well as the mounting of secrets within a Kubernetes cluster in addition to the existing method of configuring via environment variables.
+
+## Configuration
+
+The application requires the following configuration values to be set.
+
+The preferred method of configuration in Kubernetes is mapping secrets to environment variables, and in Docker is to mount the secrets to a file - one value per file.  This is the simplest method and provides an acceptable level of security - provided you have configured secret management within Kubernetes.
+
+Docker Swarm has secret support built-in, for Docker Standalone/Podman you will need to manage secrets yourself.
+
+See the table below for the environment variable name, the configuration file path.  Some values have defaults which will be used if the variable is not set and the file path does not exist.  In cases where the file path exists and the environment variable also exists, the environment variable will be used.  All values without a default are required,timetable-mgr will exit if it cannot load a value.
+
+| Variable Name | File Path           | Default Value | Description |
+| :------------ | :------------------ | :------------ | :---------- |
+| OWL_VSTP_ON   | /owl/conf/vstp/on   | on    | Enable/Disable VSTP Updates <sup>1</sup> |
+| OWL_NROD_USER | /owl/conf/nrod/user |               | Network Rail NROD Username |
+| OWL_NROD_PASS | /owl/conf/nrod/pass |               | Network Rail NROD Password |
+| OWL_DB_HOST   | /owl/conf/db/host   | localhost     | MongoDB Host |
+| OWL_DB_PORT   | /owl/conf/db/port   | 27017         | MongoDB Port |
+| OWL_DB_USER   | /owl/conf/db/user   |               | MongoDB Username |
+| OWL_DB_PASS   | /owl/conf/db/pass   |               | MondoDB Password |
+
+<sup>1</sup> Set to 'off' to disable VSTP Updates.  Useful in testing as you cannot have two clients connected.
+
+## Logging
+
+Logging is at INFO level.  The environment variable 'runtime' is checked.  If it is set to `debug`, then the log level will be set to DEBUG.
+
+If the environment variable 'perflog' is set to `on`, then the number of running goroutines and heap memory allocation will be printed to the console every two seconds.  Of course this is off by default.

background/ticker.go

@@ -0,0 +1,75 @@
+package background
+
+import (
+	"math"
+	"os"
+	"runtime"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/cif"
+	"git.fjla.uk/owlboard/timetable-mgr/corpus"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"git.fjla.uk/owlboard/timetable-mgr/pis"
+	"git.fjla.uk/owlboard/timetable-mgr/stations"
+	"go.uber.org/zap"
+)
+
+const frequency = 2 * time.Hour // Figure out a sensible frequency!
+
+// Starts a background ticker to run background tasks.  Uses the frequency configured in the background/ticker.go file
+func InitTicker(cfg *helpers.Configuration, stop <-chan struct{}) {
+	go runTicker(cfg, stop)
+
+	// Run goroutine logging ticker if env "perflog" is set to "on"
+	if os.Getenv("perflog") == "on" {
+		go goroutineTicker(stop)
+	}
+}
+
+// Runs the ticker and handles tick events
+func runTicker(cfg *helpers.Configuration, stop <-chan struct{}) {
+	log.Info("Starting background task ticker", zap.Duration("frequency", frequency))
+	ticker := time.NewTicker(frequency)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-stop:
+			log.Debug("Stopping background task ticker")
+			return
+		case <-ticker.C:
+			log.Debug("Running background tasks")
+			go cif.CheckCif(cfg)
+			go corpus.CheckCorpus(cfg)
+			go stations.Check()
+			go pis.Check()
+		}
+	}
+}
+
+// Starts a ticker that logs how many goroutines are running every two seconds
+func goroutineTicker(stop <-chan struct{}) {
+	log.Debug("Starting goroutine resource logging ticker")
+	ticker := time.NewTicker(1000 * time.Millisecond)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-stop:
+			return
+		case <-ticker.C:
+			debugLog()
+		}
+	}
+}
+
+func debugLog() {
+	var memStats runtime.MemStats
+	runtime.ReadMemStats(&memStats)
+
+	goroutines := runtime.NumGoroutine()
+	heapMem := float64(memStats.HeapAlloc) / (1024 * 1024)
+	heapMemRound := math.Round(heapMem*100) / 100
+
+	log.Debug("Performance", zap.Int("goroutine-count", goroutines), zap.Float64("heap-mem (MB)", heapMemRound))
+}

cif/check.go

@@ -0,0 +1,66 @@
+package cif
+
+import (
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Checks if the CIF Data needs updating, and what type of update is needed (Full/Partial) and if partial
+// what days data needs updating, then calls an update function to handle the update.
+func CheckCif(cfg *helpers.Configuration) {
+	// Check that it is after 0600, if not then skip update
+	if time.Now().In(londonTimezone).Hour() <= dataAvailable {
+		log.Info("Too early to update CIF data, not published until 0600")
+		return
+	}
+
+	log.Debug("Checking age of CIF Data")
+
+	// Load and read metadata from database
+	metadata, err := dbAccess.GetCifMetadata()
+	if err != nil {
+		log.Error("Unable to read last update time", zap.Error(err))
+		return
+	}
+
+	// If no metadata is found in DB, presume no CIF data exists
+	if metadata == nil {
+		log.Info("Full CIF download required")
+		err := runCifFullDownload(cfg)
+		if err != nil {
+			log.Warn("Unable to run full CIF Update", zap.Error(err))
+		}
+		return
+	}
+
+	// Check if last update was today
+	if isSameToday(metadata.LastUpdate) {
+		log.Info("CIF Data has already been updated today, skipping")
+		return
+	}
+
+	// Check how many days since last update, if more than 5, run full update, else run update
+	daysSinceLastUpdate := howManyDaysAgo(metadata.LastUpdate)
+	if daysSinceLastUpdate > 5 {
+		log.Debug("Full Update Requested due to time since last update", zap.Int("daysSinceLastUpdate", daysSinceLastUpdate))
+		log.Info("Full CIF download required")
+		err := runCifFullDownload(cfg)
+		if err != nil {
+			log.Error("Full CIF update failed", zap.Error(err))
+		}
+		return
+	}
+
+	daysToUpdate := generateUpdateDays(daysSinceLastUpdate)
+
+	// Run the update
+	log.Info("CIF Update required", zap.Any("days to update", daysToUpdate))
+	err = runCifUpdateDownload(cfg, metadata, daysToUpdate)
+	if err != nil {
+		log.Warn("Daily CIF update failed", zap.Error(err))
+	}
+}

cif/constants.go

@@ -0,0 +1,19 @@
+package cif
+
+import "time"
+
+// The URL required for a daily update of the CIF Data - The 'day string' must be appended
+const dailyUpdateUrl = "https://publicdatafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=CIF_ALL_UPDATE_DAILY&day=toc-update-"
+
+// The URL required for a full fetch of the CIF Data
+const fullUpdateUrl = "https://publicdatafeeds.networkrail.co.uk/ntrod/CifFileAuthenticate?type=CIF_ALL_FULL_DAILY&day=toc-full"
+
+// The time at which CIF Data is expected to be available for download (full hour)
+const dataAvailable = 6
+
+// Define update type strings to pass into metadata
+const fullUpdateType = "full"
+const dailyUpdateType = "daily"
+
+// An object representing the Europe/London timezone
+var londonTimezone, _ = time.LoadLocation("Europe/London")

cif/convert.go

@@ -0,0 +1,128 @@
+package cif
+
+import (
+	"strconv"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+func ConvertServiceType(input *upstreamApi.JsonScheduleV1, vstp bool) (*database.Service, error) {
+	output := database.Service{
+		//TransactionType:   input.TransactionType,
+		StpIndicator:      input.CifStpIndicator,
+		Operator:          input.AtocCode,
+		TrainUid:          input.CifTrainUid,
+		Headcode:          input.ScheduleSegment.SignallingId,
+		PowerType:         input.ScheduleSegment.CifPowerType,
+		PlanSpeed:         parseSpeed(&input.ScheduleSegment.CifSpeed),
+		ScheduleStartDate: ParseCifDate(&input.ScheduleStartDate, "start"),
+		ScheduleEndDate:   ParseCifDate(&input.ScheduleEndDate, "end"),
+		ServiceDetail:     generateServiceDetail(&input.ScheduleSegment.CifTrainClass, &input.ScheduleSegment.SignallingId, &input.ScheduleSegment.CifCateringCode, &input.ScheduleSegment.CifSleepers, vstp),
+		DaysRun:           parseDaysRun(&input.ScheduleDaysRun),
+		Stops:             parseStops(&input.ScheduleSegment.ScheduleLocation),
+	}
+
+	return &output, nil
+}
+
+// Converts CifSpeed input string to an int32, automatically corrects VSTP speeds which are not actual speed values
+func parseSpeed(CIFSpeed *string) int32 {
+	if CIFSpeed == nil {
+		return 0
+	}
+	if *CIFSpeed == "" {
+		return int32(0)
+	}
+	actualSpeed, exists := helpers.SpeedMap[*CIFSpeed]
+	if !exists {
+		actualSpeed = *CIFSpeed
+	}
+
+	speed, err := strconv.ParseInt(actualSpeed, 10, 32)
+	if err != nil {
+		log.Warn("Unable to parse speed", zap.String("input-value", *CIFSpeed))
+		return int32(0)
+	}
+	return int32(speed)
+}
+
+// Not tested
+func parseStops(input *[]upstreamApi.CifScheduleLocation) []database.Stop {
+	output := make([]database.Stop, 0, len(*input))
+
+	for _, item := range *input {
+		stop := database.Stop{
+			PublicDeparture: item.PublicDeparture,
+			PublicArrival:   item.PublicArrival,
+			WttDeparture:    item.Departure,
+			WttArrival:      item.Arrival,
+			Pass:            item.Pass,
+			Platform:        item.Platform,
+			ArrLine:         item.Path,
+			DepLine:         item.Line,
+			Tiploc:          item.TiplocCode,
+			IsPublic:        isPublic(&item),
+		}
+
+		output = append(output, stop)
+	}
+
+	return output
+}
+
+// Ascertains whether a given location is a public stop or not
+func isPublic(input *upstreamApi.CifScheduleLocation) bool {
+	if input.PublicArrival == "" && input.PublicDeparture == "" {
+		return false
+	}
+	return true
+}
+
+// Generates a ServiceDetail struct based on the input
+func generateServiceDetail(
+	cifTrainClass, signallingId,
+	cateringCode, sleepers *string,
+	vstp bool,
+) database.ServiceDetail {
+	return database.ServiceDetail{
+		FirstClass: hasFirstClass(cifTrainClass, signallingId),
+		Catering:   hasCatering(cateringCode),
+		Sleeper:    hasSleeper(sleepers),
+		Vstp:       vstp,
+	}
+}
+
+// Ascertains whether the service offers first class
+func hasFirstClass(input, signallingId *string) bool {
+	if input == nil || signallingId == nil {
+		return false
+	}
+
+	// Handle non passenger headcodes and ensure first class is not shown as available
+	firstChar := (*signallingId)[0]
+	if firstChar == '3' || firstChar == '4' || firstChar == '5' || firstChar == '6' || firstChar == '7' || firstChar == '8' || firstChar == '0' {
+		return false
+	}
+
+	return *input != "S"
+}
+
+// Ascertains whether the service offers catering
+func hasCatering(input *string) bool {
+	if input == nil {
+		return false
+	}
+	return *input != ""
+}
+
+// Ascertains whether the service offers sleeping berths
+func hasSleeper(input *string) bool {
+	if input == nil {
+		return false
+	}
+	return *input != ""
+}

cif/convert_test.go

@@ -0,0 +1,222 @@
+package cif
+
+import (
+	"reflect"
+	"testing"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+)
+
+func TestParseSpeed(t *testing.T) {
+	testCases := []struct {
+		input    string
+		expected int32
+	}{
+		{"075", 75},
+		{"125", 125},
+		{"40", 40},
+		{"040", 40},
+		{"134", 60},
+		{"179", 80},
+		{"186", 186},
+		{"417", 186},
+	}
+
+	for _, tc := range testCases {
+		result := parseSpeed(&tc.input)
+
+		if result != tc.expected {
+			t.Errorf("For speed: %s, expected: %d, but got: %d", tc.input, tc.expected, result)
+		}
+	}
+
+	nilResult := parseSpeed(nil)
+	if nilResult != 0 {
+		t.Errorf("parseSpeed failed to handle nil pointer, expected %d, but got %d", 0, nilResult)
+	}
+}
+
+func TestIsPublic(t *testing.T) {
+	testCases := []struct {
+		input  upstreamApi.CifScheduleLocation
+		expect bool
+	}{
+		{upstreamApi.CifScheduleLocation{
+			LocationType:         "LO",
+			RecordIdentity:       "",
+			TiplocCode:           "BATHSPA",
+			TiplocInstance:       "0",
+			Arrival:              "0422H",
+			Departure:            "0445",
+			PublicDeparture:      "0445",
+			Pass:                 "",
+			Path:                 "UFR",
+			Platform:             "1",
+			Line:                 "DFR",
+			EngineeringAllowance: "",
+			PathingAllowance:     "",
+			PerformanceAllowance: "",
+		}, true},
+		{upstreamApi.CifScheduleLocation{
+			LocationType:         "LO",
+			RecordIdentity:       "",
+			TiplocCode:           "BATHSPA",
+			TiplocInstance:       "0",
+			Arrival:              "0422H",
+			Departure:            "0445",
+			PublicDeparture:      "",
+			Pass:                 "",
+			Path:                 "UFR",
+			Platform:             "1",
+			Line:                 "DFR",
+			EngineeringAllowance: "",
+			PathingAllowance:     "",
+			PerformanceAllowance: "",
+		}, false},
+	}
+
+	for num, tc := range testCases {
+		result := isPublic(&tc.input)
+
+		if result != tc.expect {
+			t.Errorf("For testCase %d, expected %t, but got %t", num, tc.expect, result)
+		}
+	}
+}
+
+func TestHasFirstClass(t *testing.T) {
+	testCases := []struct {
+		input    string
+		headcode string
+		expect   bool
+	}{
+		{"", "1A00", true},
+		{"B", "2A05", true},
+		{"S", "1C99", false},
+		{"", "3C23", false},
+		{"", "5Q21", false},
+		{"", "5D32", false},
+		{"", "9O12", true},
+		{"B", "9D32", true},
+		{"", "7R43", false},
+		{"B", "6Y77", false},
+		{"", "8P98", false},
+		{"S", "4O89", false},
+		{"", "4E43", false},
+	}
+
+	for _, tc := range testCases {
+		result := hasFirstClass(&tc.input, &tc.headcode)
+
+		if result != tc.expect {
+			t.Errorf("For %s & headcode %s, expected %t, but got %t", tc.input, tc.headcode, tc.expect, result)
+		}
+	}
+
+	nilResult := hasFirstClass(nil, nil)
+	if nilResult {
+		t.Errorf("hasFirstClass failed to handle nil pointer, expected %t, got %t", false, nilResult)
+	}
+}
+
+func TestHasCatering(t *testing.T) {
+	testCases := []struct {
+		input  string
+		expect bool
+	}{
+		{"", false},
+		{"CF", true},
+		{"HT", true},
+		{"MR", true},
+		{"RP", true},
+		{"T", true},
+		{"F", true},
+	}
+
+	for _, tc := range testCases {
+		result := hasCatering(&tc.input)
+
+		if result != tc.expect {
+			t.Errorf("For %s, expected %t, but got %t", tc.input, tc.expect, result)
+		}
+	}
+
+	nilResult := hasCatering(nil)
+	if nilResult {
+		t.Errorf("hasCatering failed to handle nil pointer, expected %t, but got %t", false, nilResult)
+	}
+}
+
+func TestHasSleeper(t *testing.T) {
+	testCases := []struct {
+		input  string
+		expect bool
+	}{
+		{"B", true},
+		{"F", true},
+		{"S", true},
+		{"", false},
+	}
+
+	for _, tc := range testCases {
+		result := hasSleeper(&tc.input)
+
+		if result != tc.expect {
+			t.Errorf("For %s, expected %t, but got %t", tc.input, tc.expect, result)
+		}
+	}
+
+	nilResult := hasSleeper(nil)
+	if nilResult {
+		t.Errorf("hasSleeper failed to handle nil pointer, expected %t, but got %t", false, nilResult)
+	}
+}
+
+func TestParseStops(t *testing.T) {
+	testCases := []struct {
+		input    []upstreamApi.CifScheduleLocation
+		expected []database.Stop
+	}{
+		{
+			input: []upstreamApi.CifScheduleLocation{
+				{
+					LocationType:         "LO",
+					RecordIdentity:       "Yes",
+					TiplocCode:           "BATHSPA",
+					TiplocInstance:       "0",
+					Arrival:              "0445",
+					Departure:            "0449",
+					PublicDeparture:      "0449",
+					Pass:                 "",
+					Platform:             "1",
+					Line:                 "DM",
+					Path:                 "DM",
+					EngineeringAllowance: "",
+					PathingAllowance:     "",
+					PerformanceAllowance: "",
+				}},
+			expected: []database.Stop{
+				{
+					PublicDeparture: "0449",
+					WttDeparture:    "0449",
+					PublicArrival:   "",
+					WttArrival:      "0445",
+					IsPublic:        true,
+					Tiploc:          "BATHSPA",
+					Pass:            "",
+					Platform:        "1",
+					ArrLine:         "DM",
+					DepLine:         "DM",
+				},
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		result := parseStops(&tc.input)
+		if !reflect.DeepEqual(result, tc.expected) {
+			t.Errorf("Test case failed. Input: %v, Expected: %v, Got: %v", tc.input, tc.expected, result)
+		}
+	}
+}

cif/helpers.go

@@ -0,0 +1,99 @@
+package cif
+
+import (
+	"errors"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Fetches the day string for the provided date.
+func getDayString(t time.Time) string {
+	time := t.In(londonTimezone)
+	day := time.Weekday()
+
+	dayStrings := [...]string{"sun", "mon", "tue", "wed", "thu", "fri", "sat"}
+
+	return dayStrings[day]
+}
+
+// Simply returns the correct URL for either a 'daily' or 'full' update.
+func getUpdateUrl(updateType string) (string, error) {
+	if updateType == "daily" {
+		return dailyUpdateUrl, nil
+	} else if updateType == "full" {
+		return fullUpdateUrl, nil
+	}
+	err := errors.New("invalid update type provided, must be one of 'daily' or 'full'")
+	return "", err
+}
+
+// Takes a time.Time as input and returns True if it is
+// the same day as now, or false if it is not the same day as now
+func isSameToday(t time.Time) bool {
+	test := t.In(time.UTC)
+	today := time.Now().In(time.UTC)
+	return test.Year() == today.Year() && test.Month() == today.Month() && test.Day() == today.Day()
+}
+
+// Returns how many days ago `t` was compared to today
+func howManyDaysAgo(t time.Time) int {
+	// Truncate both times to midnight in UTC timezone
+	today := time.Now().UTC().Truncate(24 * time.Hour)
+	input := t.UTC().Truncate(24 * time.Hour)
+
+	diff := today.Sub(input)
+	days := int(diff / (24 * time.Hour))
+	return days
+}
+
+// Generates a slice of time.Time values representing which days files need downloading
+func generateUpdateDays(days int) []time.Time {
+	var updateDays []time.Time
+
+	for i := 0; i < days; i++ {
+		day := time.Now().Add(-time.Duration(i) * 24 * time.Hour)
+		updateDays = append(updateDays, day)
+	}
+
+	// Reverse slice to ensure chronological order
+	for i, j := 0, len(updateDays)-1; i < j; i, j = i+1, j-1 {
+		updateDays[i], updateDays[j] = updateDays[j], updateDays[i]
+	}
+
+	return updateDays
+}
+
+// Parses CIF Schedule Start/End Dates (YYYY-MM-DD) into time.Time types (00:00:00 for start, 23:59:59 for end)
+func ParseCifDate(input *string, startOrEnd string) time.Time {
+	layout := "2006-01-02" // Layout of input
+	t, err := time.ParseInLocation(layout, *input, londonTimezone)
+	if err != nil {
+		log.Error("Error parsing date string", zap.String("date string", *input), zap.Error(err))
+		return time.Time{}
+	}
+
+	if startOrEnd == "start" {
+		t = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, londonTimezone)
+	} else if startOrEnd == "end" {
+		t = time.Date(t.Year(), t.Month(), t.Day(), 23, 59, 59, 0, londonTimezone)
+	} else {
+		log.Error("Error parsing date string", zap.String("date string", *input), zap.Error(err))
+		return time.Time{}
+	}
+
+	return t.UTC()
+}
+
+// Parses CIF days_run field and converts to array of day strings
+func parseDaysRun(daysBinary *string) []string {
+	shortDays := []string{"m", "t", "w", "th", "f", "s", "su"}
+	var result []string
+	for i, digit := range *daysBinary {
+		if digit == '1' {
+			result = append(result, shortDays[i])
+		}
+	}
+	return result
+}

cif/helpers_test.go

@@ -0,0 +1,137 @@
+package cif
+
+import (
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestIsSameDay(t *testing.T) {
+	today := time.Now()
+	notToday := time.Date(2024, 01, 23, 23, 01, 3, 421, time.Local)
+
+	if !isSameToday(today) {
+		t.Errorf("Error in isSameDay(today).  Expected true, got false.")
+	}
+
+	if isSameToday(notToday) {
+		t.Errorf("Error in isSameDay(notToday).  Expected false, got true.")
+	}
+}
+
+func TestHowManyDaysAgo(t *testing.T) {
+	testCases := []struct {
+		input    time.Time
+		expected int
+	}{
+		{time.Now().In(time.UTC), 0},                      // Today
+		{time.Now().In(time.UTC).Add(-24 * time.Hour), 1}, // Yesterday
+		{time.Now().In(time.UTC).Add(-48 * time.Hour), 2}, // Ereyesterday
+		{time.Now().In(time.UTC).Add(24 * time.Hour), -1}, // Tomorrow
+		{time.Now().In(time.UTC).Add(48 * time.Hour), -2}, // Overmorrow
+	}
+
+	for _, tc := range testCases {
+		result := howManyDaysAgo(tc.input)
+		if result != tc.expected {
+			t.Errorf("For input %v, expected %d but got %d", tc.input, tc.expected, result)
+		}
+	}
+}
+
+func TestGetDayString(t *testing.T) {
+	testCases := []struct {
+		input    time.Time
+		expected string
+	}{ // Note that the test times are in UTC, but days are checked in Europe/London
+		{time.Date(2024, time.April, 7, 0, 0, 0, 0, time.UTC), "sun"},
+		{time.Date(2024, time.April, 4, 21, 0, 0, 0, time.UTC), "thu"},
+		{time.Date(2001, time.September, 11, 12, 46, 0, 0, time.UTC), "tue"},
+	}
+
+	for _, tc := range testCases {
+		result := getDayString(tc.input)
+		if result != tc.expected {
+			t.Errorf("For input %v, expected %s, but got %s", tc.input, tc.expected, result)
+		}
+	}
+}
+
+func TestGenerateUpdateDays(t *testing.T) {
+	testCases := []struct {
+		days     int
+		expected []time.Time
+	}{
+		{1, []time.Time{time.Now()}},
+		{2, []time.Time{time.Now().Add(-24 * time.Hour), time.Now()}},
+		{4, []time.Time{time.Now().Add(-72 * time.Hour),
+			time.Now().Add(-48 * time.Hour),
+			time.Now().Add(-24 * time.Hour),
+			time.Now(),
+		}},
+	}
+
+	for _, tc := range testCases {
+		result := generateUpdateDays(tc.days)
+
+		if len(result) != len(tc.expected) {
+			t.Errorf("For %d days, expected %v, but got %v", tc.days, tc.expected, result)
+			continue
+		}
+
+		for i := range result {
+			if !isSameDate(result[i], tc.expected[i]) {
+				t.Errorf("For %d days, expected %v, but got %v", tc.days, tc.expected, result)
+			}
+		}
+	}
+}
+
+func TestParseCifDate(t *testing.T) {
+	testCases := []struct {
+		dateString string
+		startOrEnd string
+		expect     time.Time
+	}{
+		{"2024-04-05", "start", time.Date(2024, time.April, 5, 0, 0, 0, 0, londonTimezone)},
+		{"2022-01-01", "start", time.Date(2022, time.January, 1, 0, 0, 0, 0, londonTimezone)},
+		{"2015-09-26", "end", time.Date(2015, time.September, 26, 23, 59, 59, 0, londonTimezone)},
+		{"2018-03-13", "end", time.Date(2018, time.March, 13, 23, 59, 59, 0, londonTimezone)},
+	}
+
+	layout := "2006-01-02 15:04:05" // Layout for printing times in error cases.
+
+	for _, tc := range testCases {
+		result := ParseCifDate(&tc.dateString, tc.startOrEnd)
+		result = result.In(londonTimezone)
+		//fmt.Println(tc.dateString, "|UTC: ", result.In(time.UTC), "|EU/Lon: ", result)
+		if result != tc.expect {
+			t.Errorf("For datestring %s, startOrEnd %s, expected %s, but got %s", tc.dateString, tc.startOrEnd, tc.expect.Format(layout), result.Format(layout))
+		}
+	}
+}
+
+func TestParseDaysRun(t *testing.T) {
+	testCases := []struct {
+		input  string
+		expect []string
+	}{
+		{"1111111", []string{"m", "t", "w", "th", "f", "s", "su"}},
+		{"0000001", []string{"su"}},
+		{"1000000", []string{"m"}},
+		{"0000100", []string{"f"}},
+		{"0111000", []string{"t", "w", "th"}},
+	}
+
+	for _, tc := range testCases {
+		result := parseDaysRun(&tc.input)
+		if !reflect.DeepEqual(result, tc.expect) {
+			t.Errorf("For input %s, expected %v, but got %v", tc.input, tc.expect, result)
+		}
+	}
+}
+
+// Checks if two time values have the same year, month and day.
+func isSameDate(t1, t2 time.Time) bool {
+	return t1.Year() == t2.Year() && t1.Month() == t2.Month() && t1.Day() == t2.Day()
+}

cif/metadata.go

@@ -0,0 +1,69 @@
+package cif
+
+import (
+	"fmt"
+	"time"
+
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Evaluates last and new metadata and determines whether an update is required.
+// // If last update == "full" && lastupdate after yesterday at 0600, run update.
+// // Beyond that condition, comparisons are made between old and new metadata.
+func checkMetadata(oldMeta *dbAccess.CifMetadata, newMeta *upstreamApi.JsonTimetableV1) (reason string, updateRequired bool) {
+	// Handle nil pointer - although this should be resolved in the calling function in ideal situations
+	if oldMeta == nil || newMeta == nil {
+		log.Debug("oldMeta or newMeta is a nil pointer.")
+		return "nil-pointer", false
+	}
+
+	if !isTimestampWithinLastFiveDays(newMeta.Timestamp) {
+		log.Debug("Downloaded CIF File not produced in last five days", zap.Time("file_timestamp", time.Unix(newMeta.Timestamp, 0)))
+		return "downloaded-data-is-too-old", false
+	}
+
+	// Handle non-matching sequence numbers between full and daily download types
+	//	if isAfterYesterdayAt0600(oldMeta.LastUpdate) {
+	//		return "last-update-full", true
+	//	}
+
+	// Check that the new metadata sequence is as expected.
+	if newMeta.Metadata.Sequence == oldMeta.LastSequence+1 {
+		log.Debug("Sequence numbers", zap.Int64("New", newMeta.Metadata.Sequence), zap.Int64("Old", oldMeta.LastSequence))
+		return "correct-sequence", true
+	} else {
+		s := fmt.Sprintf("incorrect sequence, Old: %d, New: %d, Expected New: %d", oldMeta.LastSequence, newMeta.Metadata.Sequence, oldMeta.LastSequence+1)
+		return s, false
+	}
+}
+
+// Evaluates whether the given time is after yesterday at 0600
+func isAfterYesterdayAt0600(t time.Time) bool {
+	yesterday0600 := time.Now().In(londonTimezone).AddDate(0, 0, -1)
+	yesterday0600 = time.Date(yesterday0600.Year(), yesterday0600.Month(), yesterday0600.Day(), 6, 0, 0, 0, time.UTC)
+	return t.After(yesterday0600)
+}
+
+// Accepts the JsonTimetableV1 struct which contains CIF File metadata and produces a DB Ready struct.
+func generateMetadata(header *upstreamApi.JsonTimetableV1) *dbAccess.CifMetadata {
+	newMetadata := dbAccess.CifMetadata{
+		Doctype:       dbAccess.Doctype,
+		LastTimestamp: header.Timestamp,
+		LastUpdate:    time.Now().In(londonTimezone),
+		LastSequence:  header.Metadata.Sequence,
+	}
+
+	return &newMetadata
+}
+
+// Accepts a unix timestamp and returns true if the timestamp is within the last five days, else false
+func isTimestampWithinLastFiveDays(ts int64) bool {
+	timestamp := time.Unix(ts, 0)
+	timeNow := time.Now()
+	fiveDaysAgo := timeNow.AddDate(0, 0, -5)
+
+	return !timestamp.Before(fiveDaysAgo)
+}

cif/metadata_test.go

@@ -0,0 +1,101 @@
+package cif
+
+import (
+	"testing"
+	"time"
+
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+)
+
+func TestGenerateMetadata(t *testing.T) {
+	header := &upstreamApi.JsonTimetableV1{
+		Classification: "public",
+		Timestamp:      1711227636,
+		Owner:          "Network Rail",
+		Sender: upstreamApi.TimetableSender{
+			Organisation: "Rockshore",
+			Application:  "NTROD",
+			Component:    "SCHEDULE",
+		},
+		Metadata: upstreamApi.TimetableMetadata{
+			Type:     "update",
+			Sequence: 4307,
+		},
+	}
+
+	expected := &dbAccess.CifMetadata{
+		Doctype:       dbAccess.Doctype,
+		LastTimestamp: header.Timestamp,
+		LastSequence:  header.Metadata.Sequence,
+		LastUpdate:    time.Now().In(londonTimezone),
+	}
+
+	result := generateMetadata(header)
+
+	if result == nil {
+		t.Errorf("generateMetadata returned nil pointer")
+		return // Static type checking likes this return to be here, even if it is redundant in reality.
+	}
+
+	if result.Doctype != expected.Doctype {
+		t.Errorf("Doctype: expected %s, got %s", expected.Doctype, result.Doctype)
+	}
+
+	if result.LastTimestamp != expected.LastTimestamp {
+		t.Errorf("LastTimestamp: expected %d, got %d", expected.LastTimestamp, result.LastTimestamp)
+	}
+
+	if result.LastSequence != expected.LastSequence {
+		t.Errorf("LastSequence: expected %d, got %d", expected.LastSequence, result.LastSequence)
+	}
+
+	tolerance := time.Second
+	if !result.LastUpdate.Before(expected.LastUpdate.Add(tolerance)) ||
+		!result.LastUpdate.After(expected.LastUpdate.Add(-tolerance)) {
+		t.Errorf("LastUpdate: expected %s, got %s", expected.LastUpdate, result.LastUpdate)
+	}
+}
+
+func TestIsAfterYesterdayAt0600(t *testing.T) {
+	yesterday0600 := time.Now().In(londonTimezone).AddDate(0, 0, -1).Truncate(24 * time.Hour).Add(6 * time.Hour)
+
+	testCases := []struct {
+		input  time.Time
+		expect bool
+	}{
+		{yesterday0600.Add(-1 * time.Hour), false},
+		{yesterday0600.Add(-12 * time.Hour), false},
+		{yesterday0600.Add(-24 * time.Hour), false},
+		{yesterday0600.Add(1 * time.Microsecond), true},
+		{yesterday0600.Add(1 * time.Hour), true},
+		{yesterday0600.Add(12 * time.Hour), true},
+		{yesterday0600.Add(24 * time.Hour), true},
+	}
+
+	for _, tc := range testCases {
+		result := isAfterYesterdayAt0600(tc.input)
+		if result != tc.expect {
+			t.Errorf("For input %v, expected %t, but got %t", tc.input, tc.expect, result)
+		}
+	}
+}
+
+func TestIsTimestampWithinLastFiveDays(t *testing.T) {
+	testCases := []struct {
+		name   string
+		ts     int64
+		expect bool
+	}{
+		{"WithinLastFiveDays", time.Now().AddDate(0, 0, -3).Unix(), true},
+		{"ExactlyFiveDaysAgo", time.Now().AddDate(0, 0, -5).Unix(), false}, //False due to elapsed time during test
+		{"MoreThanFiveDaysAgo", time.Now().AddDate(0, 0, -7).Unix(), false},
+	}
+
+	for _, tc := range testCases {
+		result := isTimestampWithinLastFiveDays(tc.ts)
+		if result != tc.expect {
+			t.Errorf("For %s (%d), expected %t, but got %t", tc.name, tc.ts, tc.expect, result)
+		}
+	}
+}

cif/parse.go

@@ -0,0 +1,69 @@
+package cif
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Accepts the CIF data as a stream and outputs parsed data
+func parseCifDataStream(dataStream io.ReadCloser) (*ParsedData, error) {
+	defer dataStream.Close()
+	log.Debug("Starting CIF Datastream parsing")
+	if dataStream == nil {
+		return nil, errors.New("unable to parse nil pointer")
+	}
+
+	var parsed ParsedData
+	parsed.Assoc = make([]upstreamApi.JsonAssociationV1, 0)
+	parsed.Sched = make([]upstreamApi.JsonScheduleV1, 0)
+
+	// Create JSON Decoder
+	decoder := json.NewDecoder(dataStream)
+
+	// Iterate over JSON Objects using stream decoder
+	for decoder.More() {
+		var obj map[string]json.RawMessage
+		if err := decoder.Decode(&obj); err != nil {
+			log.Error("Error decoding JSON String")
+			return nil, err
+		}
+
+		// Handle parsed data
+		for key, value := range obj {
+			switch key {
+			case "JsonTimetableV1":
+				var timetable upstreamApi.JsonTimetableV1
+				if err := json.Unmarshal(value, &timetable); err != nil {
+					log.Error("Error decoding JSONTimetableV1 object", zap.Error(err))
+					continue
+				}
+				parsed.Header = timetable
+			case "TiplocV1":
+				// This data is not used and is sourced from CORPUS
+				continue
+			case "JsonAssociationV1":
+				// Association data is not currently used
+				// but may be used in the future
+				continue
+			case "JsonScheduleV1":
+				var schedule upstreamApi.JsonScheduleV1
+				if err := json.Unmarshal(value, &schedule); err != nil {
+					log.Error("Error decoding JSONScheduleV1 object", zap.Error(err))
+					continue
+				}
+				parsed.Sched = append(parsed.Sched, schedule)
+			case "EOF":
+				log.Debug("Reached EOF")
+			default:
+				log.Warn("Unknown CIF Data type", zap.String("key", key))
+			}
+		}
+	}
+	log.Debug("CIF Parsing completed")
+	return &parsed, nil
+}

cif/process.go

@@ -0,0 +1,114 @@
+package cif
+
+import (
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Processes parsed CIF data and applies the data to the database
+func ProcessParsedCif(data *ParsedData) error {
+	log.Debug("Starting CIF Processing")
+	log.Info("Processing CIF Data", zap.Int("schedule-count", len(data.Sched)))
+
+	// Batch size for processing
+	batchSize := 250 // Needs optimising for better RAM use.  1000 ~ 5.7GB, 500 ~ 5.5GB, 750 ~ 5.2GB
+
+	// Process deletions in batches
+	for i := 0; i < len(data.Sched); i += batchSize {
+		end := i + batchSize
+		if end > len(data.Sched) {
+			end = len(data.Sched)
+		}
+		deleteBatch := make([]*upstreamApi.JsonScheduleV1, 0)
+		for _, item := range data.Sched[i:end] {
+			if item.TransactionType == "Delete" {
+				deleteItem := item
+				deleteBatch = append(deleteBatch, &deleteItem)
+			}
+		}
+		if len(deleteBatch) > 0 {
+			err := doDeletions(deleteBatch)
+			if err != nil {
+				log.Error("Error deleting CIF Entries", zap.Error(err))
+				return err
+			}
+		}
+	}
+
+	// Process creations in batches
+	for i := 0; i < len(data.Sched); i += batchSize {
+		end := i + batchSize
+		if end > len(data.Sched) {
+			end = len(data.Sched)
+		}
+		createBatch := make([]*upstreamApi.JsonScheduleV1, 0)
+		for _, item := range data.Sched[i:end] {
+			if item.TransactionType == "Create" {
+				createItem := item
+				createBatch = append(createBatch, &createItem)
+			}
+		}
+		if len(createBatch) > 0 {
+			err := doCreations(createBatch)
+			if err != nil {
+				log.Error("Error creating CIF Entries", zap.Error(err))
+				return err
+			}
+		}
+	}
+
+	log.Debug("CIF Processing complete")
+	return nil
+}
+
+// Create delete query types and pass to the function which batches the deletions
+func doDeletions(deletions []*upstreamApi.JsonScheduleV1) error {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Panic("Panic:", zap.Any("panic", r))
+		}
+	}()
+	deleteQueries := make([]database.DeleteQuery, 0)
+	for _, item := range deletions {
+		query := database.DeleteQuery{
+			ScheduleStartDate: ParseCifDate(&item.ScheduleStartDate, "start"),
+			StpIndicator:      item.CifStpIndicator,
+			TrainUid:          item.CifTrainUid,
+		}
+
+		deleteQueries = append(deleteQueries, query)
+	}
+
+	err := dbAccess.DeleteCifEntries(deleteQueries)
+	if err != nil {
+		log.Error("Error deleting documents", zap.Error(err))
+		return err
+	}
+
+	return nil
+}
+
+// Convert to the correct struct for the database and pass to the function which batches insertions
+func doCreations(creations []*upstreamApi.JsonScheduleV1) error {
+	createDocuments := make([]database.Service, 0)
+	for _, item := range creations {
+		document, err := ConvertServiceType(item, false)
+		if err != nil {
+			log.Error("Error converting JsonSchedule to Service type", zap.Error(err))
+			continue
+		}
+
+		createDocuments = append(createDocuments, *document)
+	}
+
+	err := dbAccess.CreateCifEntries(createDocuments)
+	if err != nil {
+		log.Error("Error creating documents", zap.Error(err))
+		return err
+	}
+
+	return nil
+}

cif/readme.md

@@ -0,0 +1,11 @@
+# package cif
+
+This package follows a similar pattern to `package corpus`.
+
+First, CheckCorpus() retreived cif metadata from the database and determines whether an update is required and what type of update.
+
+Then, one of the update functions is called which run through the update process.  There are two update types, 'full' and 'update'.  A 'full' update drops the entire timetable collection and rebuilds with a full CIF download.  'update' downloads CIF updates from specified days and applies updates.
+
+Downloads are handled by `package nrod` which returns an io.ReadCloser which is passed to the parsing function.
+
+Currently the parsing function returns a parsedCif pointer, however this is using significant memory due to the size of a full CIF download (Often around 4.5GB).  The intention is to instead use a worker pool to handle the data.

cif/types.go

@@ -0,0 +1,13 @@
+package cif
+
+import "git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+
+// This file is for internal types to `package cif`, any types which represent
+// database or external API resources should be defined in git.fjla.uk/owlboard/go-types
+
+// Holds parsed data for processing
+type ParsedData struct {
+	Header upstreamApi.JsonTimetableV1
+	Assoc  []upstreamApi.JsonAssociationV1
+	Sched  []upstreamApi.JsonScheduleV1
+}

cif/update.go

@@ -0,0 +1,159 @@
+package cif
+
+import (
+	"io"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"git.fjla.uk/owlboard/timetable-mgr/nrod"
+	"go.uber.org/zap"
+)
+
+// Replaces all existing CIF Data with a new download
+func runCifFullDownload(cfg *helpers.Configuration) error {
+	preTime := time.Now()
+	log.Info("Downloading all CIF Data")
+
+	// Download CIF Data file
+	url, err := getUpdateUrl("full")
+	if err != nil {
+		log.Error("Error getting download URL", zap.Error(err))
+	}
+	dataStream, err := nrod.NrodStream(url, cfg)
+	if err != nil {
+		log.Error("Error downloading CIF data", zap.Error(err))
+		return err
+	}
+
+	// Parse CIF file
+	parsed, err := parseCifDataStream(dataStream)
+	if err != nil {
+		log.Error("Error parsing CIF data", zap.Error(err))
+		return err
+	}
+
+	// Try to remove all non-vstp entries, else give up and delete collection
+	count, err := dbAccess.PurgeNonVstp()
+	if err != nil {
+		log.Warn("Error purging non-vstp schedules, dropping collection", zap.Error(err))
+		dbAccess.DropCollection(dbAccess.TimetableCollection) // I should edit this to prevent removal of VSTP entries in the database.
+	} else {
+		log.Info("Removed non-vstp services", zap.Int64("deletion count", count))
+	}
+
+	// Process CIF file
+	err = ProcessParsedCif(parsed)
+	if err != nil {
+		log.Error("Error processing CIF data", zap.Error(err))
+	}
+
+	newMeta := generateMetadata(&parsed.Header)
+	ok := dbAccess.PutCifMetadata(newMeta, fullUpdateType)
+	if !ok {
+		log.Warn("CIF Data updated, but metadata write failed")
+	}
+
+	// Set parsed to nil to encourage garbage collection
+	parsed = nil
+
+	// Create Indexes
+	err = dbAccess.CreateTimetableIndexes()
+	if err != nil {
+		log.Warn("Error creating timetable indexes, degraded performance", zap.Error(err))
+	}
+
+	postTime := time.Now()
+	updateDuration := postTime.Sub(preTime)
+	log.Info("Execution time", zap.Duration("duration", updateDuration))
+	return nil
+}
+
+// Runs a CIF Update for up to five days
+func runCifUpdateDownload(cfg *helpers.Configuration, metadata *dbAccess.CifMetadata, days []time.Time) error {
+	startTime := time.Now()
+	log.Info("Downloading CIF Updates")
+
+	// Loop over dates
+	for _, time := range days {
+		log.Info("Downloading CIF File", zap.Time("CIF Data from", time))
+
+		// Download CIF data file
+		data, err := fetchUpdate(time, cfg)
+		if err != nil {
+			log.Error("Error fetching CIF update", zap.Error(err))
+			return err
+		}
+
+		// Parse CIF file
+		parsed, err := parseCifDataStream(data)
+		if err != nil {
+			log.Error("Error parsing CIF data", zap.Error(err))
+			return err
+		}
+
+		// Check CIF Metadata
+		log.Debug("Starting metadata checks")
+
+		reason, update := checkMetadata(metadata, &parsed.Header)
+		if !update {
+			log.Warn("Update file not processed", zap.String("reason", reason))
+			continue
+		}
+
+		log.Info("CIF Data is suitable for processing", zap.String("reason", reason))
+
+		// Process CIF file
+		err = ProcessParsedCif(parsed)
+		if err != nil {
+			log.Error("Error processing CIF data", zap.Error(err))
+		}
+
+		metadata = generateMetadata(&parsed.Header)
+		parsed = nil
+	}
+
+	// Write metadata to database
+	ok := dbAccess.PutCifMetadata(metadata, dailyUpdateType)
+	if !ok {
+		log.Warn("CIF Data updated, but metadata write failed.")
+	}
+
+	// Clear out of date schedules
+	cutoff := time.Now().Add(-time.Hour * 24 * 7)
+	log.Debug("Attempting to remove outdated services", zap.Time("scheduleEnd before", cutoff))
+	count, err := dbAccess.RemoveOutdatedServices(cutoff)
+	if err != nil {
+		log.Warn("Out of date services not removed", zap.Error(err))
+	} else {
+		log.Info("Out of date services removed", zap.Int64("removal count", count))
+	}
+
+	endTime := time.Now()
+	duration := endTime.Sub(startTime)
+	log.Info("CIF Update process ended", zap.Duration("duration", duration))
+	return nil
+}
+
+// Wraps nrod.NrodDownload() into a function which can handle downloading data for a given day.
+// Note that the previous days update is the latest and is downloaded.
+func fetchUpdate(t time.Time, cfg *helpers.Configuration) (io.ReadCloser, error) {
+	url, err := getUpdateUrl("daily")
+	if err != nil {
+		return nil, err
+	}
+
+	// Calcuates the day yesterday which is the file that needs downloading
+	updateDay := t.Add(-24 * time.Hour)
+
+	// Append day string to URL
+	url = url + getDayString(updateDay)
+
+	log.Debug("Fetching CIF Data", zap.Time("Update_File_Produced", updateDay))
+	dataStream, err := nrod.NrodStream(url, cfg)
+	if err != nil {
+		return nil, err
+	}
+	return dataStream, nil
+}

corpus/check.go

@@ -0,0 +1,38 @@
+package corpus
+
+import (
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Checks if the CORPUS Data needs updating, and calls an updater function if needed.
+func CheckCorpus(cfg *helpers.Configuration) {
+	log.Debug("Checking age of CORPUS Data")
+	utime, err := dbAccess.CheckUpdateTime(dbAccess.CorpusCollection)
+	if err != nil {
+		log.Error("Error checking last CORPUS update", zap.Error(err))
+	}
+
+	lastUpdate := time.Unix(utime, 0)
+	currentTime := time.Now()
+	dataAge := currentTime.Sub(lastUpdate)
+	fortnight := 14 * 24 * time.Hour
+
+	log.Debug("CORPUS Data", zap.Duration("Data Age", dataAge), zap.Duration("Max Age", 14*24*time.Hour))
+
+	if dataAge >= fortnight {
+		log.Info("CORPUS update required")
+		err := RunCorpusUpdate(cfg)
+		if err != nil {
+			log.Warn("CORPUS Update did not run")
+		} else {
+			log.Info("CORPUS data has been updated")
+		}
+	} else {
+		log.Info("CORPUS Data not stale, skipping updating")
+	}
+}

corpus/constants.go

@@ -0,0 +1,4 @@
+package corpus
+
+// The download URL for CORPUS data
+const url string = "https://publicdatafeeds.networkrail.co.uk/ntrod/SupportingFileAuthenticate?type=CORPUS"

corpus/parse.go

@@ -0,0 +1,87 @@
+package corpus
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Accepts CORPUS data as a byte array and formats it ready for database insertion
+func parseCorpusData(stream io.ReadCloser) (*[]database.CorpusEntry, error) {
+	defer stream.Close()
+
+	log.Debug("Starting CORPUS Data parsing")
+
+	var corpusEntries []database.CorpusEntry
+	decoder := json.NewDecoder(stream)
+
+	// Expect an object at the root of the JSON stream
+	if _, err := decoder.Token(); err != nil {
+		log.Error("Error parsing CORPUS Data", zap.Error(err))
+		return nil, err
+	}
+
+	// Search for the "TIPLOCDATA" key
+	for decoder.More() {
+		// Decode the next JSON token
+		if tok, err := decoder.Token(); err != nil {
+			log.Error("Error parsing CORPUS Data", zap.Error(err))
+			return nil, err
+		} else if tok == "TIPLOCDATA" {
+			// Found the "TIPLOCDATA" key, expect the associated array
+			if !decoder.More() {
+				err := errors.New("missing array after TIPLOCDATA key")
+				log.Error("Error parsing CORPUS Data", zap.Error(err))
+				return nil, err
+			}
+
+			// Start reading the array associated with the "TIPLOCDATA" key
+			if _, err := decoder.Token(); err != nil {
+				log.Error("Error parsing CORPUS Data", zap.Error(err))
+				return nil, err
+			}
+
+			// Iterate over the JSON array
+			for decoder.More() {
+				var corpusEntry database.CorpusEntry
+				if err := decoder.Decode(&corpusEntry); err != nil {
+					log.Error("Error parsing CORPUS Data", zap.Error(err))
+					return nil, err
+				}
+				corpusEntries = append(corpusEntries, corpusEntry)
+			}
+			break // Exit loop after processing "TIPLOCDATA" array
+		}
+	}
+
+	log.Debug("CORPUS parsing complete")
+
+	return &corpusEntries, nil
+}
+
+// Removes empty fields from CORPUS entries
+func pruneCorpusEntries(corpusEntries []database.CorpusEntry) *[]database.CorpusEntry {
+	for i := range corpusEntries {
+		if corpusEntries[i].CRS == " " {
+			corpusEntries[i].CRS = ""
+		}
+		if corpusEntries[i].TIPLOC == " " {
+			corpusEntries[i].TIPLOC = ""
+		}
+		if corpusEntries[i].NLCDESC16 == " " {
+			corpusEntries[i].NLCDESC16 = ""
+		}
+		if corpusEntries[i].STANOX == " " {
+			corpusEntries[i].STANOX = ""
+		}
+		if corpusEntries[i].UIC == " " {
+			corpusEntries[i].UIC = ""
+		}
+	}
+
+	return &corpusEntries
+}

corpus/stations.go

@@ -0,0 +1,23 @@
+package corpus
+
+import "git.fjla.uk/owlboard/go-types/pkg/database"
+
+// Removes non-station entities from the CORPUS Data, ready for insertion to the database (stations collection)
+func createStationEntries(corpusData *[]database.CorpusEntry) *[]database.StationEntry {
+	var stationEntries []database.StationEntry
+
+	for _, entry := range *corpusData {
+		if entry.CRS != "" {
+			stationEntry := database.StationEntry{
+				CRS:     entry.CRS,
+				TIPLOC:  entry.TIPLOC,
+				NLCDESC: entry.NLCDESC,
+				STANOX:  entry.STANOX,
+			}
+
+			stationEntries = append(stationEntries, stationEntry)
+		}
+	}
+
+	return &stationEntries
+}

corpus/update.go

@@ -0,0 +1,55 @@
+package corpus
+
+import (
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"git.fjla.uk/owlboard/timetable-mgr/nrod"
+	"go.uber.org/zap"
+)
+
+// Runs all stages of the CORPUS Update process
+func RunCorpusUpdate(cfg *helpers.Configuration) error {
+	resp, err := nrod.NrodStream(url, cfg)
+	if err != nil {
+		log.Error("Failed to fetch CORPUS data", zap.Error(err))
+		return err
+	}
+
+	unsortedCorpusData, err := parseCorpusData(resp)
+	if err != nil {
+		log.Error("Error parsing Corpus data", zap.Error(err))
+		return err
+	}
+
+	corpusData := pruneCorpusEntries(*unsortedCorpusData)
+	//stationData := createStationEntries(corpusData)
+
+	if err := dbAccess.DropCollection(dbAccess.CorpusCollection); err != nil {
+		log.Warn("CORPUS data may be incomplete")
+		log.Error("Error dropping CORPUS Data", zap.Error(err))
+		return err
+	}
+	//if err := dbAccess.DropCollection(dbAccess.StationsCollection); err != nil {
+	//	log.Warn("Stations data may be incomplete")
+	//	log.Error("Error dropping stations Data", zap.Error(err))
+	//	return err
+	//}
+
+	if err := dbAccess.PutManyCorpus(corpusData); err != nil {
+		log.Warn("CORPUS data may be incomplete")
+		log.Error("Error inserting CORPUS Data", zap.Error(err))
+		return err
+	}
+	//if err := dbAccess.PutManyStations(stationData); err != nil {
+	//	log.Warn("Stations data may be incomplete")
+	//	log.Error("Error inserting stations data", zap.Error(err))
+	//	return err
+	//}
+
+	if err := dbAccess.CreateCorpusIndexes(); err != nil {
+		log.Error("Corpus Indexes creation failed, application speed will be reduced", zap.Error(err))
+	}
+
+	return nil
+}

dbAccess/access.go

@@ -0,0 +1,32 @@
+package dbAccess
+
+import (
+	"context"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+// Pushes the current version of this application to the data base 'versions' collection.
+func PushVersionToDb() {
+	version := database.Version{
+		Target:    "timetable-mgr",
+		Component: "timetable-mgr",
+		Version:   helpers.Version,
+	}
+	versionSelector := database.VersionSelector{
+		Target:    "timetable-mgr",
+		Component: "timetable-mgr",
+	}
+	opts := options.Update().SetUpsert(true)
+	coll := MongoClient.Database("owlboard").Collection("versions")
+	_, err := coll.UpdateOne(context.TODO(), versionSelector, bson.M{"$set": version}, opts)
+	if err != nil {
+		log.Warn("Unable to push version to database: " + err.Error())
+	} else {
+		log.Debug("Version up to date in Database")
+	}
+}

dbAccess/cif.go

@@ -0,0 +1,204 @@
+package dbAccess
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.uber.org/zap"
+)
+
+const Doctype = "CifMetadata"
+
+// The type describing the CifMetadata 'type' in the database.
+// This type will be moved to owlboard/go-types
+type CifMetadata struct {
+	Doctype        string    `bson:"type"`
+	LastUpdate     time.Time `bson:"lastUpdate"`
+	LastTimestamp  int64     `bson:"lastTimestamp"`
+	LastSequence   int64     `bson:"lastSequence"`
+	LastUpdateType string    `bson:"lastUpdateType"`
+}
+
+// Fetches the CifMetadata from the database, returns nil if no metadata exists - before first initialisation for example.
+func GetCifMetadata() (*CifMetadata, error) {
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(MetaCollection)
+	filter := bson.M{"type": Doctype}
+	var result CifMetadata
+	err := collection.FindOne(context.Background(), filter).Decode(&result)
+	if err != nil {
+		if errors.Is(err, mongo.ErrNoDocuments) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	log.Debug("Fetched CIF Metadata from database", zap.Any("Metadata", result))
+
+	return &result, nil
+}
+
+// Uses upsert to Insert/Update the CifMetadata in the database
+func PutCifMetadata(metadata *CifMetadata, lastUpdateType string) bool {
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(MetaCollection)
+	options := options.Update().SetUpsert(true)
+	filter := bson.M{"type": Doctype}
+	update := bson.M{
+		"$set": bson.M{
+			"type":           Doctype,
+			"lastUpdate":     metadata.LastUpdate,
+			"lastTimestamp":  metadata.LastTimestamp,
+			"lastSequence":   metadata.LastSequence,
+			"lastUpdateType": lastUpdateType,
+		},
+	}
+
+	_, err := collection.UpdateOne(context.Background(), filter, update, options)
+
+	if err != nil {
+		log.Error("Error updating CIF Metadata", zap.Error(err))
+		return false
+	}
+
+	log.Info("New CIF Metadata written", zap.Time("Update time", metadata.LastUpdate))
+	return true
+}
+
+// Handles 'Delete' tasks from CIF Schedule updates, accepts DeleteQuery types and batches deletions.
+func DeleteCifEntries(deletions []database.DeleteQuery) error {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Panic("Panic:", zap.Any("panic", r))
+		}
+	}()
+	// Skip if deletions is empty
+	if len(deletions) == 0 {
+		log.Info("No deletions required")
+		return nil
+	}
+	log.Debug("Running deletions against database", zap.Int("count", len(deletions)))
+
+	// Prepare deletion tasks
+	collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
+	bulkDeletions := make([]mongo.WriteModel, 0, len(deletions))
+
+	for _, deleteQuery := range deletions {
+		filter := bson.M{
+			"trainUid":          deleteQuery.TrainUid,
+			"scheduleStartDate": deleteQuery.ScheduleStartDate,
+			"stpIndicator":      deleteQuery.StpIndicator,
+		}
+		bulkDeletions = append(bulkDeletions, mongo.NewDeleteManyModel().SetFilter(filter))
+	}
+
+	bulkWriteOptions := options.BulkWrite().SetOrdered(false)
+
+	_, err := collection.BulkWrite(context.Background(), bulkDeletions, bulkWriteOptions)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Clears all non-vstp services from the database.  Used when a CIF full download is required.
+func PurgeNonVstp() (int64, error) {
+	coll := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
+	filter := bson.M{"serviceDetail.vstp": false}
+
+	result, err := coll.DeleteMany(context.Background(), filter)
+	if err != nil {
+		return result.DeletedCount, err
+	}
+
+	return result.DeletedCount, nil
+}
+
+// Handles 'Create' tasks for CIF Schedule updates, accepts Service structs and batches their creation.
+func CreateCifEntries(schedules []database.Service) error {
+	// Skip if deletions is empty
+	if len(schedules) == 0 {
+		log.Info("No creations required")
+		return nil
+	}
+	log.Debug("Running creations against database", zap.Int("count", len(schedules)))
+
+	collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
+
+	models := make([]mongo.WriteModel, 0, len(schedules))
+
+	for _, s := range schedules {
+		model := mongo.NewInsertOneModel().SetDocument(s)
+		models = append(models, model)
+	}
+
+	bulkWriteOptions := options.BulkWrite().SetOrdered(false)
+
+	_, err := collection.BulkWrite(context.Background(), models, bulkWriteOptions)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Removes any schedules which ended before 'cutoff'
+func RemoveOutdatedServices(cutoff time.Time) (count int64, err error) {
+	// Define filter
+	filter := bson.M{"scheduleEndDate": bson.M{"$lt": cutoff}}
+
+	collection := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
+
+	res, err := collection.DeleteMany(context.Background(), filter)
+	if err != nil {
+		return // Automatically returns named values
+	}
+
+	count = res.DeletedCount
+	return // Automatically returns names values
+}
+
+// Creates indexes on the Timetable collection... Index suitability needs checking.
+func CreateTimetableIndexes() error {
+	log.Info("Creating timetable indexes")
+	coll := MongoClient.Database(DatabaseName).Collection(TimetableCollection)
+	indexModels := []mongo.IndexModel{
+		{
+			Keys: bson.D{
+				{Key: "trainUid", Value: 1},
+				{Key: "stpIndicator", Value: 1},
+				{Key: "scheduleStartDate", Value: 1},
+			},
+			Options: options.Index().SetName("delete_query"),
+		}, // The find by UID Query can make use of the delete_query index
+		{
+			Keys: bson.D{
+				{Key: "headcode", Value: 1},
+				{Key: "daysRun", Value: 1},
+				{Key: "scheduleStartDate", Value: 1},
+				{Key: "scheduleEndDate", Value: 1},
+			},
+			Options: options.Index().SetName("find_by_headcode"),
+		},
+		{
+			Keys: bson.D{
+				{Key: "serviceDetail.vstp", Value: 1},
+			},
+			Options: options.Index().SetName("vstp"),
+		},
+	}
+
+	_, err := coll.Indexes().CreateMany(context.Background(), indexModels)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

dbAccess/client.go

@@ -0,0 +1,79 @@
+package dbAccess
+
+import (
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+
+	"context"
+	"time"
+
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+// Provide the DB Connection to other functions
+var MongoClient (*mongo.Client)
+
+// Builds the DB URI based on the loaded configuration parameters
+func getDbUri(cfg *helpers.Configuration) string {
+	var uri = "mongodb://" + cfg.DbUser + ":" + cfg.DbPass + "@" + cfg.DbHost + ":" + cfg.DbPort
+	return uri
+}
+
+// Configure bsonOpts
+var bsonOpts = &options.BSONOptions{
+	UseJSONStructTags: true,
+}
+
+func InitDataAccess(cfg *helpers.Configuration) {
+	log.Debug("Starting database connection")
+	url := getDbUri(cfg)
+
+	const maxRetries = 8
+
+	for attempt := 1; attempt <= maxRetries; attempt++ {
+		log.Info("Attempting to connect to database", zap.Int("attempt", attempt), zap.Int("max-tries", maxRetries))
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		client, err := mongo.Connect(ctx, options.Client().ApplyURI(url).SetBSONOptions(bsonOpts))
+		if err != nil {
+			log.Warn("Error connecting to database", zap.Int("attempt", attempt), zap.Int("max-tries", maxRetries))
+			cancel()
+			if attempt != maxRetries {
+				helpers.BackoffDelay(attempt)
+			}
+			continue
+		}
+
+		err = client.Ping(ctx, nil)
+		if err != nil {
+			log.Warn("Error pinging database", zap.Int("attempt", attempt), zap.Int("max-tries", maxRetries))
+			cancel()
+			if attempt != maxRetries {
+				helpers.BackoffDelay(attempt)
+			}
+			continue
+		}
+
+		MongoClient = client
+		log.Info("Database connection successful")
+		return
+	}
+
+	log.Fatal("Failed to connect to database on multiple attempts", zap.Int("attempts", maxRetries))
+}
+
+// Closes the connection to the database - used for cleanup functions
+func CloseMongoClient() {
+	if MongoClient != nil {
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+		if err := MongoClient.Disconnect(ctx); err != nil {
+			log.Warn("Error disconnecting MongoDB client: " + err.Error())
+		} else {
+			log.Info("MongoDB client disconnected.")
+		}
+	}
+}

dbAccess/common.go

@@ -0,0 +1,72 @@
+package dbAccess
+
+import (
+	"context"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.uber.org/zap"
+)
+
+// CAUTION: Drops the collection named in collectionName
+func DropCollection(collectionName string) error {
+	log.Info("Dropping collection", zap.String("Collection Name", collectionName))
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(collectionName)
+
+	err := collection.Drop(context.Background())
+	if err != nil {
+		log.Error("Error dropping collection", zap.String("Collection Name", collectionName), zap.Error(err))
+		return err
+	}
+
+	return nil
+}
+
+// Checks the update time (unix timestamp) of the collection named in collectionName, uses 'type: collection' entries in the meta collection
+func CheckUpdateTime(collectionName string) (int64, error) {
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(MetaCollection)
+	filter := bson.D{
+		{Key: "target", Value: collectionName},
+		{Key: "type", Value: "collection"},
+	}
+	var result struct {
+		Updated int64 `bson:"updated"`
+	}
+	err := collection.FindOne(context.Background(), filter).Decode(&result)
+	if err != nil {
+		return 0, err
+	}
+	return result.Updated, nil
+}
+
+// Sets a new update time (unix timestamp) of the collection named in collectionName.  The update time is calculated within the function.
+func SetUpdateTime(collectionName string) error {
+	log.Info("Setting update time", zap.String("collection", collectionName))
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection("meta")
+	options := options.Update().SetUpsert(true)
+	updateTime := time.Now().Unix()
+	filter := bson.M{
+		"target": collectionName,
+		"type":   "collection",
+	}
+	update := bson.M{
+		"$set": bson.M{
+			"updated":      updateTime,
+			"updated_time": time.Now().In(time.UTC),
+			"target":       collectionName,
+			"type":         "collection",
+		},
+	}
+	_, err := collection.UpdateOne(context.Background(), filter, update, options)
+
+	if err != nil {
+		log.Error("Error setting update time", zap.String("collection", collectionName), zap.Error(err))
+		return err
+	}
+	return nil
+}

dbAccess/contants.go

@@ -0,0 +1,8 @@
+package dbAccess
+
+const DatabaseName string = "owlboard"
+const CorpusCollection string = "corpus"
+const StationsCollection string = "stations"
+const MetaCollection string = "meta"
+const TimetableCollection string = "timetable"
+const PisCollection string = "pis"

dbAccess/corpus.go

@@ -0,0 +1,162 @@
+package dbAccess
+
+import (
+	"context"
+	"strings"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.uber.org/zap"
+)
+
+// Puts an array of Corpus Documents into the database
+func PutManyCorpus(corpusData *[]database.CorpusEntry) error {
+	collection := MongoClient.Database(DatabaseName).Collection(CorpusCollection)
+
+	documents := convertCorpusToInterfaceSlice(corpusData)
+
+	_, err := collection.InsertMany(context.Background(), *documents)
+	if err != nil {
+		return err
+	}
+
+	SetUpdateTime(CorpusCollection)
+	return nil
+}
+
+// Puts an array of Stations documents into the database
+func PutManyStations(stationsData *[]database.StationEntry) error {
+	collection := MongoClient.Database(DatabaseName).Collection(StationsCollection)
+
+	documents := convertStationsToInterfaceSlice(stationsData)
+
+	_, err := collection.InsertMany(context.Background(), *documents)
+	if err != nil {
+		return err
+	}
+
+	SetUpdateTime(StationsCollection)
+	return nil
+}
+
+// Converts []database.CorpusEntry types into interface slices required to put them into the database
+func convertCorpusToInterfaceSlice(corpusData *[]database.CorpusEntry) *[]interface{} {
+	interfaceSlice := make([]interface{}, len(*corpusData))
+	for i, doc := range *corpusData {
+		interfaceSlice[i] = doc
+	}
+	return &interfaceSlice
+}
+
+// Converts []database.StationEntry types into interface slices required to put them into the database
+func convertStationsToInterfaceSlice(stationsData *[]database.StationEntry) *[]interface{} {
+	interfaceSlice := make([]interface{}, len(*stationsData))
+	for i, doc := range *stationsData {
+		interfaceSlice[i] = doc
+	}
+	return &interfaceSlice
+}
+
+func CreateCorpusIndexes() error {
+	coll := MongoClient.Database(DatabaseName).Collection(CorpusCollection)
+	indexModels := []mongo.IndexModel{
+		{
+			Keys: bson.M{
+				"tiploc": 1,
+			},
+			Options: options.Index().SetName("tiploc"),
+		},
+		{
+			Keys: bson.M{
+				"3alpha": 1,
+			},
+			Options: options.Index().SetName("3alpha"),
+		},
+	}
+
+	_, err := coll.Indexes().CreateMany(context.Background(), indexModels)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func GetTiplocFromCrs(crs string) (tiploc string, err error) {
+	// Return TIPLOC from CRS code
+
+	crs = strings.ToUpper(crs)
+	// PIPELINE:
+	pipeline := bson.A{
+		bson.D{{"$match", bson.D{{"3ALPHA", crs}}}},
+		bson.D{
+			{"$project",
+				bson.D{
+					{"TIPLOC", 1},
+					{"_id", 0},
+				},
+			},
+		},
+	}
+
+	coll := MongoClient.Database(DatabaseName).Collection(StationsCollection)
+	cursor, err := coll.Aggregate(context.Background(), pipeline)
+	if err != nil {
+		return "", err
+	}
+
+	defer cursor.Close(context.Background())
+
+	var result struct {
+		TIPLOC string `bson:"TIPLOC"`
+	}
+	if cursor.Next(context.Background()) {
+		if err := cursor.Decode(&result); err != nil {
+			return "", err
+		}
+		return result.TIPLOC, nil
+	}
+
+	log.Warn("No TIPLOC Found", zap.String("CRS", crs))
+	return "", nil
+}
+
+func GetStanoxFromCrs(crs string) (stanox string, err error) {
+	// Return STANOX from CRS code
+	crs = strings.ToUpper(crs)
+	// PIPELINE:
+	pipeline := bson.A{
+		bson.D{{"$match", bson.D{{"3ALPHA", crs}}}},
+		bson.D{
+			{"$project",
+				bson.D{
+					{"STANOX", 1},
+					{"_id", 0},
+				},
+			},
+		},
+	}
+
+	coll := MongoClient.Database(DatabaseName).Collection(StationsCollection)
+	cursor, err := coll.Aggregate(context.Background(), pipeline)
+	if err != nil {
+		return "", err
+	}
+
+	defer cursor.Close(context.Background())
+
+	var result struct {
+		STANOX string `bson:"STANOX"`
+	}
+	if cursor.Next(context.Background()) {
+		if err := cursor.Decode(&result); err != nil {
+			return "", err
+		}
+		return result.STANOX, nil
+	}
+
+	log.Warn("No STANOX Found", zap.String("CRS", crs))
+	return "", nil
+}

dbAccess/pis.go

@@ -0,0 +1,88 @@
+package dbAccess
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.uber.org/zap"
+)
+
+func GetPisMetadata() (*database.PisMetadata, error) {
+	coll := MongoClient.Database(DatabaseName).Collection(MetaCollection)
+
+	filter := bson.M{"type": "PisMetadata"}
+	var result database.PisMetadata
+	err := coll.FindOne(context.Background(), filter).Decode(&result)
+	if err != nil {
+		if errors.Is(err, mongo.ErrNoDocuments) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &result, nil
+}
+
+func PutPisMetadata(version string) error {
+	coll := MongoClient.Database(DatabaseName).Collection(MetaCollection)
+	options := options.Update().SetUpsert(true)
+	filter := bson.M{"type": "PisMetadata"}
+	update := bson.M{
+		"$set": bson.M{
+			"type":        "PisMetadata",
+			"lastUpdate":  time.Now().Format(time.RFC3339),
+			"lastVersion": version,
+		},
+	}
+
+	_, err := coll.UpdateOne(context.Background(), filter, update, options)
+
+	if err != nil {
+		return err
+	}
+
+	log.Info("New Stations Metadata written", zap.String("version", version))
+	return nil
+}
+
+// Puts complete PIS dataset to database
+func PutPisData(pis *[]database.PIS) (int64, error) {
+	coll := MongoClient.Database(DatabaseName).Collection(PisCollection)
+
+	var docs []interface{}
+	for _, entry := range *pis {
+		docs = append(docs, entry)
+	}
+
+	res, err := coll.InsertMany(context.TODO(), docs)
+	if err != nil {
+		return 0, err
+	}
+
+	return int64(len(res.InsertedIDs)), nil
+}
+
+func CreatePisIndeces() error {
+	coll := MongoClient.Database(DatabaseName).Collection(PisCollection)
+
+	crsIndex := mongo.IndexModel{
+		Keys: bson.D{{"stops", 1}},
+	}
+
+	tiplocIndex := mongo.IndexModel{
+		Keys: bson.D{{"tiplocs", 1}},
+	}
+
+	_, err := coll.Indexes().CreateMany(context.Background(), []mongo.IndexModel{crsIndex, tiplocIndex})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

dbAccess/stations.go

@@ -0,0 +1,110 @@
+package dbAccess
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+	"go.uber.org/zap"
+)
+
+const StationsMetaDoctype string = "StationsMetadata"
+
+type StationsMetadata struct {
+	Doctype    string
+	LastUpdate time.Time
+}
+
+// Fetches the CifMetadata from the database, returns nil if no metadata exists - before first initialisation for example.
+func GetStationsMetadata() (*StationsMetadata, error) {
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(MetaCollection)
+	filter := bson.M{"type": StationsMetaDoctype}
+	var result StationsMetadata
+	err := collection.FindOne(context.Background(), filter).Decode(&result)
+	if err != nil {
+		if errors.Is(err, mongo.ErrNoDocuments) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	log.Debug("Fetched Stations Metadata from database", zap.Any("Metadata", result))
+
+	return &result, nil
+}
+
+func SetStationsMetadata(time time.Time) bool {
+	database := MongoClient.Database(DatabaseName)
+	collection := database.Collection(MetaCollection)
+	options := options.Update().SetUpsert(true)
+	filter := bson.M{"type": StationsMetaDoctype}
+	update := bson.M{
+		"$set": bson.M{
+			"type":       StationsMetaDoctype,
+			"lastUpdate": time,
+		},
+	}
+
+	_, err := collection.UpdateOne(context.Background(), filter, update, options)
+
+	if err != nil {
+		log.Error("Error updating Stations Metadata", zap.Error(err))
+		return false
+	}
+
+	log.Info("New Stations Metadata written", zap.Time("Update time", time))
+	return true
+}
+
+// Puts an array of Stations documents into the database
+func PutManyNewStations(stationsData *[]database.Station) error {
+	collection := MongoClient.Database(DatabaseName).Collection(StationsCollection)
+
+	documents := convertNewStationsToInterfaceSlice(stationsData)
+
+	_, err := collection.InsertMany(context.Background(), *documents)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Converts []database.Station types into interface slices required to put them into the database
+func convertNewStationsToInterfaceSlice(stationsData *[]database.Station) *[]interface{} {
+	interfaceSlice := make([]interface{}, len(*stationsData))
+	for i, doc := range *stationsData {
+		interfaceSlice[i] = doc
+	}
+	return &interfaceSlice
+}
+
+func CreateStationIndeces() error {
+	coll := MongoClient.Database(DatabaseName).Collection(StationsCollection)
+
+	locationIndex := mongo.IndexModel{
+		Keys:    bson.D{{"location", "2dsphere"}},
+		Options: nil,
+	}
+
+	crsIndex := mongo.IndexModel{
+		Keys: bson.D{{"3ALPHA", 1}},
+	}
+
+	tiplocIndex := mongo.IndexModel{
+		Keys: bson.D{{"TIPLOC", 1}},
+	}
+
+	_, err := coll.Indexes().CreateMany(context.Background(), []mongo.IndexModel{locationIndex, crsIndex, tiplocIndex})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

dbAccess/types.go

@@ -0,0 +1,6 @@
+package dbAccess
+
+// This file should define types used within dbAccess.
+// Any types representing database or upstream API resources should
+// instead be defined in git.fjla.uk/owlboard/go-types and also be
+// reflected in git.fjla.uk/owlboard/ts-types

go.mod

@@ -0,0 +1,27 @@
+module git.fjla.uk/owlboard/timetable-mgr
+
+go 1.22
+
+toolchain go1.22.4
+
+require (
+	git.fjla.uk/owlboard/go-types v1.1.11
+	github.com/go-stomp/stomp/v3 v3.1.2
+	go.mongodb.org/mongo-driver v1.17.1
+	go.uber.org/zap v1.27.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/montanaflynn/stats v0.7.1 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/crypto v0.28.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
+)

go.sum

@@ -1,77 +1,82 @@
-git.fjla.uk/owlboard/go-types v0.0.0-20230721082911-9a574276d572 h1:shnlNyIV1jG+xQsg5zCt2fEjiDzCQQeDTjTFuKZa97c=
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-git.fjla.uk/owlboard/go-types v0.0.0-20230721082911-9a574276d572/go.mod h1:kG+BX9UF+yJaAVnln/QSKlTdrtKRRReezMeSk1ZLMzY=
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-git.fjla.uk/owlboard/go-types v0.0.0-20230727191457-d15ddc556312 h1:IolAJJTttdcmykOI73Zjfh3V8Gd01l9TrM+OmliM4h0=
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 github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
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 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -80,20 +85,21 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
-golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
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-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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helpers/backoff.go

@@ -0,0 +1,18 @@
+package helpers
+
+import (
+	"math"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Implements an exponential backoff strategy and sleeps for a duration calculated as 1 second to the power of (attempt - 1).
+// The backoff time doubles with each attempt, starting from 1 second for the first attempt.
+func BackoffDelay(attempt int) {
+	base := time.Second
+	backoff := base * time.Duration(math.Pow(2, float64(attempt-1)))
+	log.Info("Retry backoff", zap.Duration("delay", backoff))
+	time.Sleep(backoff)
+}

helpers/basicAuth.go

@@ -0,0 +1,9 @@
+package helpers
+
+import "encoding/base64"
+
+// Provides a BasicAuth string
+func BasicAuth(username, password string) string {
+	authString := username + ":" + password
+	return base64.StdEncoding.EncodeToString([]byte(authString))
+}

helpers/config.go

@@ -5,9 +5,9 @@ import (
 )
 
 // Version Constants
-const versionNum string = "2023.7.1"
+const versionNum string = "2024.10.2"
-const versionSuffix string = "beta"
+const versionSuffix string = ""
-const Version string = versionNum + "-" + versionSuffix
+const Version string = versionNum + versionSuffix
 
 // Environment Variables
 var Runtime string = getRuntime()

helpers/config_loader.go

@@ -0,0 +1,132 @@
+package helpers
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+)
+
+type ConfigParameter struct {
+	EnvVarName   string `json:"env_var_name"`
+	ConfFilePath string `json:"conf_file_path"`
+	DefaultValue string `json:"default_value"`
+	FailIfAbsent bool   `json:"fail_if_absent"`
+}
+
+type Configuration struct {
+	VstpOn   bool   `json:"vstp_on"`
+	NrodUser string `json:"nrod_user"`
+	NrodPass string `json:"nrod_pass"`
+	DbHost   string `json:"db_host"`
+	DbPass   string `json:"db_pass"`
+	DbUser   string `json:"db_user"`
+	DbPort   string `json:"db_port"`
+}
+
+func LoadConfig() (*Configuration, error) {
+	configParams := map[string]ConfigParameter{
+		"vstp_on": {
+			EnvVarName:   "OWL_VSTP_ON",
+			ConfFilePath: "/owl/conf/vstp/on",
+			DefaultValue: "on",
+			FailIfAbsent: false,
+		},
+		"nrod_user": {
+			EnvVarName:   "OWL_NROD_USER",
+			ConfFilePath: "/owl/conf/nrod/user",
+			FailIfAbsent: true,
+		},
+		"nrod_pass": {
+			EnvVarName:   "OWL_NROD_PASS",
+			ConfFilePath: "/owl/conf/nrod/pass",
+			FailIfAbsent: true,
+		},
+		"db_host": {
+			EnvVarName:   "OWL_DB_HOST",
+			ConfFilePath: "/owl/conf/db/host",
+			DefaultValue: "localhost",
+			FailIfAbsent: false,
+		},
+		"db_port": {
+			EnvVarName:   "OWL_DB_PORT",
+			ConfFilePath: "/owl/conf/db/port",
+			DefaultValue: "27017",
+			FailIfAbsent: false,
+		},
+		"db_user": {
+			EnvVarName:   "OWL_DB_USER",
+			ConfFilePath: "/owl/conf/db/user",
+			FailIfAbsent: true,
+		},
+		"db_pass": {
+			EnvVarName:   "OWL_DB_PASS",
+			ConfFilePath: "/owl/conf/db/pass",
+			FailIfAbsent: true,
+		},
+	}
+
+	config := &Configuration{}
+
+	for key, param := range configParams {
+		if val, ok := os.LookupEnv(param.EnvVarName); ok {
+			config.setConfigValue(key, val)
+			continue
+		}
+
+		if data, err := os.ReadFile(param.ConfFilePath); err == nil {
+			config.setConfigValue(key, string(data))
+			continue
+		}
+
+		if param.DefaultValue != "" {
+			config.setConfigValue(key, param.DefaultValue)
+			continue
+		}
+
+		if param.FailIfAbsent {
+			return nil, errors.New("Failed to load configuration: " + key + " is required but not set")
+		}
+	}
+
+	return config, nil
+}
+
+// Applies configuration strings to the configuration struct
+func (c *Configuration) setConfigValue(key, value string) {
+	value = strings.TrimSpace(value)
+	switch key {
+	case "nrod_user":
+		c.NrodUser = value
+	case "nrod_pass":
+		c.NrodPass = value
+	case "db_host":
+		c.DbHost = value
+	case "db_port":
+		c.DbPort = value
+	case "db_user":
+		c.DbUser = value
+	case "db_pass":
+		c.DbPass = value
+	case "vstp_on":
+		if value == "on" {
+			c.VstpOn = true
+		} else {
+			c.VstpOn = false
+		}
+	}
+}
+
+// Provides a method to print the configuration struct.  Only when the DEBUG env is set to true
+func (c *Configuration) PrintConfig() {
+	if os.Getenv("debug") == "true" {
+		fmt.Println("Configuration:")
+		fmt.Println("VstpOn: ", c.VstpOn)
+		fmt.Println("NrodUser: ", c.NrodUser)
+		fmt.Println("NrodPass: ", c.NrodPass)
+		fmt.Println("DbHost: ", c.DbHost)
+		fmt.Println("DbUser: ", c.DbUser)
+		fmt.Println("DbPass: ", c.DbPass)
+		fmt.Println("DbPort: ", c.DbPort)
+	}
+}

helpers/vstp.go

@@ -2,7 +2,6 @@ package helpers
 
 // An error with the VSTP messages is that speed values are shown incorrectly, but not for all services
 // This maps the displayed speed to the correct speed.
-
 var SpeedMap = map[string]string{
 	"22":  "10",
 	"34":  "15",

log/log.go

@@ -0,0 +1,77 @@
+package log
+
+import (
+	"os"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+// Use outside `package log`
+// should be avoided.
+var post *zap.Logger
+
+// Initialises the logger
+func InitLogger() {
+	var err error
+	mode := os.Getenv("runtime")
+	if mode == "" {
+		mode = "prod"
+	}
+
+	var level zapcore.Level
+	if mode == "debug" {
+		level = zap.DebugLevel
+	} else {
+		level = zap.InfoLevel
+	}
+
+	config := zap.NewDevelopmentConfig()
+	config.DisableStacktrace = true
+	config.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	config.Level = zap.NewAtomicLevelAt(level)
+	post, err = config.Build(zap.AddCallerSkip(1))
+	if err != nil {
+		panic("Failed to initialize logger: " + err.Error())
+	}
+
+	defer post.Sync()
+
+	Info("Logger initialised", zap.String("level", level.String()), zap.String("runtime", mode))
+}
+
+// Logs message at info level
+func Info(msg string, fields ...zap.Field) {
+	post.Info(msg, fields...)
+}
+
+// Logs message at debug level
+func Debug(msg string, fields ...zap.Field) {
+	post.Debug(msg, fields...)
+}
+
+// Logs message at warn level
+func Warn(msg string, fields ...zap.Field) {
+	post.Warn(msg, fields...)
+}
+
+// Logs message at error level
+func Error(msg string, fields ...zap.Field) {
+	post.Error(msg, fields...)
+}
+
+// Logs message at fatal level then call os.exit(1)
+func Fatal(msg string, fields ...zap.Field) {
+	post.Fatal(msg, fields...)
+}
+
+// Logs message at panic level the panics
+func Panic(msg string, fields ...zap.Field) {
+	post.Panic(msg, fields...)
+}
+
+// Flushes log messages
+func Cleanup() {
+	Info("Flushing log messages")
+	post.Sync()
+}

main.go

@@ -0,0 +1,150 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"os/user"
+	"syscall"
+	"time"
+	_ "time/tzdata"
+
+	"git.fjla.uk/owlboard/timetable-mgr/background"
+	"git.fjla.uk/owlboard/timetable-mgr/cif"
+	"git.fjla.uk/owlboard/timetable-mgr/corpus"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"git.fjla.uk/owlboard/timetable-mgr/messaging"
+	"git.fjla.uk/owlboard/timetable-mgr/pis"
+	"git.fjla.uk/owlboard/timetable-mgr/stations"
+	"git.fjla.uk/owlboard/timetable-mgr/vstp"
+	"go.uber.org/zap"
+)
+
+const (
+	bold  = "\033[1m"
+	redB  = "\033[1;31m"
+	blue  = "\033[32m" //Actually green!
+	cyan  = "\033[36m"
+	reset = "\033[0m"
+)
+
+func init() {
+	printStartupBanner()
+	fmt.Printf("%sVersion %s \n\n%s", bold+blue, helpers.Version, reset)
+
+	// Exits is being run as root
+	// not necessary and not secure
+	checkRunAsRoot()
+}
+
+func main() {
+	log.InitLogger()
+	defer log.Cleanup()
+	log.Info("Initialising OwlBoard timetable-mgr", zap.String("version", helpers.Version))
+	cfg, err := helpers.LoadConfig()
+	if err != nil {
+		log.Fatal("Unable to load configuration", zap.Error(err))
+		return
+	}
+	cfg.PrintConfig()
+
+	dbAccess.InitDataAccess(cfg)
+	dbAccess.PushVersionToDb()
+
+	// Initialise a `stop` channel to signal goroutines to cleanup
+	stop := make(chan struct{})
+
+	// Start CIF Task Ticker
+	background.InitTicker(cfg, stop)
+
+	// Handle signals from the OS
+	go handleSignals(cfg, stop)
+
+	// Manually call CIF and CORPUS checks to ensure that they are
+	// not delayed until the first ticker event.
+	go cif.CheckCif(cfg)
+	go corpus.CheckCorpus(cfg)
+	go stations.Check()
+	go pis.Check()
+
+	if cfg.VstpOn {
+		messaging.StompInit(cfg)
+		vstp.Subscribe()
+	}
+
+	<-stop
+}
+
+// Traps SIGINT and SIGTERM signals and ensures cleanup() is run
+func handleSignals(cfg *helpers.Configuration, stop chan<- struct{}) {
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+
+	sig := <-sigChan
+	log.Warn("Signal received: " + sig.String())
+	cleanup(cfg, stop)
+}
+
+// Cleans up open connections ready for a clean exit of the program
+func cleanup(cfg *helpers.Configuration, stop chan<- struct{}) {
+	log.Debug("Cleaning up open connections")
+	if cfg.VstpOn {
+		log.Info("Closing STOMP Client")
+		messaging.Disconnect(messaging.Client)
+
+	}
+	if dbAccess.MongoClient != nil {
+		log.Info("Closing MongoDB Client")
+		dbAccess.CloseMongoClient()
+	}
+	log.Info("Signalling to other goroutines")
+	close(stop)
+
+	log.Info("Program ready to exit")
+
+	time.Sleep(500 * time.Millisecond)
+
+	log.Cleanup()
+
+	os.Exit(0)
+}
+
+func printStartupBanner() {
+	art := `
+  ___           _ ____                      _                          
+ / _ \__      _| | __ )  ___   __ _ _ __ __| |                         
+| | | \ \ /\ / / |  _ \ / _ \ / _' | '__/ _' |                         
+| |_| |\ V  V /| | |_) | (_) | (_| | | | (_| |                         
+ \___/  \_/\_/ |_|____/ \___/ \__,_|_|  \__,_|                         
+
+ _   _                _        _     _                                 
+| |_(_)_ __ ___   ___| |_ __ _| |__ | | ___       _ __ ___   __ _ _ __ 
+| __| | '_ ' _ \ / _ \ __/ _' | '_ \| |/ _ \_____| '_ ' _ \ / _' | '__|
+| |_| | | | | | |  __/ || (_| | |_) | |  __/_____| | | | | | (_| | |   
+ \__|_|_| |_| |_|\___|\__\__,_|_.__/|_|\___|     |_| |_| |_|\__, |_|   
+                                                            |___/      
+	`
+
+	fmt.Println(cyan + art + reset)
+}
+
+func checkRunAsRoot() {
+	uid := os.Getuid()
+	if uid != 0 {
+		currUser, err := user.Current()
+		var msg string
+		if err != nil {
+			msg = "Unable to determine which user is running the application."
+		} else {
+			msg = fmt.Sprintf("Running as user: %s, %s", currUser.Uid, currUser.Username)
+		}
+		fmt.Println(blue + msg + "\nRunning as non-root user" + reset)
+		return
+	}
+
+	fmt.Println(redB + "This program must not be run as the root user" + reset)
+	fmt.Println("")
+	os.Exit(1)
+}

messaging/client.go

@@ -0,0 +1,54 @@
+package messaging
+
+import (
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"github.com/go-stomp/stomp/v3"
+)
+
+var Client *stomp.Conn
+
+// Initialises the connection to the STOMP server
+func StompInit(cfg *helpers.Configuration) {
+	Client = dial(cfg.NrodUser, cfg.NrodPass)
+}
+
+// Connects the STOMP file to the Network Rail MQ Server
+func dial(user, pass string) *stomp.Conn {
+	conn, err := stomp.Dial("tcp", "publicdatafeeds.networkrail.co.uk:61618",
+		stomp.ConnOpt.Login(user, pass),
+		stomp.ConnOpt.HeartBeat(15*time.Second, 15*time.Second),
+		stomp.ConnOpt.Header("client-id", user+"-mq-client"),
+	)
+	if err != nil {
+		log.Fatal("Unable to connect to STOMP Client: " + err.Error())
+		conn.Disconnect()
+	}
+
+	log.Info("Initialised STOMP Client")
+	return conn
+}
+
+// Handles graceful disconnection of the STOMP client, falls back to
+// a force disconnect if this fails.
+func Disconnect(conn *stomp.Conn) {
+	if conn != nil {
+		err := conn.Disconnect()
+		log.Warn("Disconnected STOMP Client")
+		if err != nil {
+			conn.MustDisconnect()
+			log.Error("STOMP Disconnection failed, forced disconnect")
+		}
+		return
+	}
+	log.Error("STOMP Disconnect failed, next connection attempt may fail")
+	err := Client.Disconnect()
+	if err != nil {
+		Client.MustDisconnect()
+		log.Warn("STOMP Disconnect failed, forced disconnection")
+	}
+	log.Info("STOMP Client disconnected")
+
+}

nrod/streams.go

@@ -0,0 +1,64 @@
+package nrod
+
+import (
+	"compress/gzip"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/helpers"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Downloads NROD Data and extracts if GZIP, returns a io.Reader
+func NrodStream(url string, cfg *helpers.Configuration) (io.ReadCloser, error) {
+	log.Debug("Fetching NROD data stream", zap.String("Request URL", url))
+
+	client := http.Client{
+		Timeout: time.Second * 300,
+	}
+
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Add("Authorization", "Basic "+helpers.BasicAuth(cfg.NrodUser, cfg.NrodPass))
+
+	resp, err := client.Do(req)
+	if err != nil {
+		log.Error("Error carrying out HTTP Request", zap.Error(err))
+		return nil, err
+	}
+
+	if resp == nil {
+		err = errors.New("http response error - response = nil")
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		err := fmt.Errorf("unexpected status code: %d", resp.StatusCode)
+		return nil, err
+	}
+
+	// Run the data through the extractor function and return io.ReadCloser, error from
+	// that function directly
+	return NrodStreamExtract(resp)
+}
+
+func NrodStreamExtract(resp *http.Response) (io.ReadCloser, error) {
+	log.Debug("Extracting NROD Download")
+
+	log.Debug("Content Type", zap.String("Content-Encoding", resp.Header.Get("Content-Encoding")))
+
+	gzReader, err := gzip.NewReader(resp.Body)
+	if err != nil {
+		log.Warn("Unable to create GZIP Reader, data probably not gzipped")
+		return resp.Body, err
+	}
+
+	return gzReader, nil
+}

pis/check.go

@@ -0,0 +1,69 @@
+package pis
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+// Checks the Gitea API for the latest release and compares to metadata in the database
+// to determine if a PIS update is required.
+func Check() {
+	repoName := "data"
+	repoOwner := "owlboard"
+	baseUrl := "https://git.fjla.uk"
+
+	apiUrl := fmt.Sprintf("%s/api/v1/repos/%s/%s/releases/latest", baseUrl, repoOwner, repoName)
+
+	log.Info("Initiating PIS Check")
+
+	resp, err := http.Get(apiUrl)
+	if err != nil {
+		log.Error("Error GETting Gitea API", zap.Error(err))
+		return
+	}
+
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		log.Error("Errot GETting Gitea API", zap.Error(fmt.Errorf("response status code %d", resp.StatusCode)))
+		return
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		log.Error("Error reading API Response", zap.Error(err))
+		return
+	}
+
+	var apiResp GiteaReleaseData
+	err = json.Unmarshal(body, &apiResp)
+	if err != nil {
+		log.Error("Error unmarshalling API response", zap.Error(err))
+		return
+	}
+
+	oldMetadata, err := dbAccess.GetPisMetadata()
+	if err != nil {
+		log.Error("Error reading PIS Metadata from database")
+		return
+	}
+
+	if oldMetadata != nil {
+		if oldMetadata.LastVersion != apiResp.Name {
+			log.Info("PIS Data is up to date")
+			return
+		}
+	}
+
+	log.Info("PIS Data being updated")
+	err = runUpdate(apiResp.TarballUrl)
+	if err != nil {
+		log.Error("Error updating PIS Data", zap.Error(err))
+	}
+}

pis/data.go

@@ -0,0 +1,99 @@
+package pis
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+	"gopkg.in/yaml.v3"
+)
+
+// Process the YAML data to a struct
+func processYaml(yamlStr string) (*[]database.PIS, error) {
+	// Define 'container' struct
+	var pisData struct {
+		Pis []PisData `yaml:"pis"`
+	}
+
+	// Unmarshal the YAML data into the structure
+	err := yaml.Unmarshal([]byte(yamlStr), &pisData)
+	if err != nil {
+		return nil, fmt.Errorf("failed to unmarshal YAML: %v", err)
+	}
+
+	// Perform deduplication on the entire pis slice
+	err = deduplicateCodes(&pisData.Pis)
+	if err != nil {
+		return nil, err
+	}
+
+	documents, err := convertPisForDatabase(&pisData.Pis)
+	if err != nil {
+		return nil, err
+	}
+
+	return documents, nil
+}
+
+// Deduplicate data in place and return error if failed
+func deduplicateCodes(pis *[]PisData) error {
+	uniqueStops := make(map[string]bool)
+	var dedupedPis []PisData
+
+	for _, data := range *pis {
+		stopsKey := stopsToString(data.Stops)
+
+		// If stopsKey does not exist, add to map
+		if _, exists := uniqueStops[stopsKey]; !exists {
+			uniqueStops[stopsKey] = true
+			dedupedPis = append(dedupedPis, data)
+		}
+	}
+
+	*pis = dedupedPis
+	return nil
+}
+
+// Join slice elements to a string for comparison
+func stopsToString(stops []string) string {
+	sort.Strings(stops)
+	return strings.Join(stops, ",")
+}
+
+// Convert PisData to database.PIS
+func convertPisForDatabase(in *[]PisData) (*[]database.PIS, error) {
+	var out []database.PIS
+
+	for _, code := range *in {
+		var document database.PIS
+		document.Code = code.Code
+		document.Operator = code.Operator
+		document.Stops = code.Stops
+		document.Tiplocs = GetTiplocsFromCrs(code.Stops)
+
+		out = append(out, document)
+	}
+
+	return &out, nil
+}
+
+// Return a list of TIPLOCS from a list of CRS using Database Lookups
+func GetTiplocsFromCrs(crsList []string) (TiplocList []string) {
+	for _, crs := range crsList {
+		alpha := strings.ToUpper(crs)
+		tiploc, err := dbAccess.GetTiplocFromCrs(alpha)
+
+		if err != nil {
+			log.Warn("Unable to find matching TIPLOC for 3ALPHA", zap.String("3ALPHA", alpha), zap.Error(err))
+			return
+		}
+
+		TiplocList = append(TiplocList, strings.ToUpper(tiploc))
+	}
+
+	return
+}

pis/types.go

@@ -0,0 +1,15 @@
+package pis
+
+// Omits data which is not required
+type GiteaReleaseData struct {
+	Name       string `json:"name"`
+	TarballUrl string `json:"tarball_url"`
+	Draft      bool   `json:"draft"`
+	Prerelease bool   `json:"prerelease"`
+}
+
+type PisData struct {
+	Code     string   `json:"code"`
+	Stops    []string `json:"stops"`
+	Operator string   `json:"operator"`
+}

pis/update.go

@@ -0,0 +1,192 @@
+package pis
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+const (
+	destPath    = "/tmp/pis.tar.gz"
+	extractPath = "/tmp/extract"
+)
+
+// Downloads the release tarball, extracts then applies to database
+func runUpdate(tarballUrl string) error {
+	err := downloadFile(tarballUrl, destPath)
+	if err != nil {
+		return err
+	}
+
+	// Extract to disk
+	file, err := os.Open(destPath)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	if err := extractFiles(file, extractPath); err != nil {
+		return err
+	}
+
+	// Load YAML to string
+	pisData, err := extractYamlData(extractPath)
+	if err != nil {
+		return err
+	}
+
+	pisSlice, err := processYaml(pisData)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(&pisSlice)
+	/*
+		err = dbAccess.DropCollection(dbAccess.PisCollection)
+		if err != nil {
+			return err
+		}
+
+		count, err := dbAccess.PutPisData(pisSlice)
+		if err != nil {
+			return err
+		}
+
+		log.Info("Insterted new PIS Data", zap.Int64("PIS Codes", count))
+
+		err = dbAccess.CreatePisIndeces()
+		if err != nil {
+			log.Error("Failed to create PIS Indeces, poor performance expected", zap.Error(err))
+		}
+	*/
+	// Cleanup files
+	cleanupFiles(destPath, extractPath)
+	return nil
+}
+
+// Download the tarball to disk
+func downloadFile(url, filepath string) error {
+	resp, err := http.Get(url)
+	if err != nil {
+		return err
+	}
+
+	defer resp.Body.Close()
+
+	out, err := os.Create(filepath)
+	if err != nil {
+		return err
+	}
+
+	defer out.Close()
+
+	_, err = io.Copy(out, resp.Body)
+	return err
+}
+
+// Extract tarball to disk
+func extractFiles(gzipStream io.Reader, dest string) error {
+	uncompressedStream, err := gzip.NewReader(gzipStream)
+	if err != nil {
+		return err
+	}
+	defer uncompressedStream.Close()
+
+	tarReader := tar.NewReader(uncompressedStream)
+
+	for {
+		header, err := tarReader.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+
+		// Handle pax_global_header or other unsupported types
+		if header.Typeflag == tar.TypeXGlobalHeader || header.Name == "pax_global_header" {
+			// Skip this special header file
+			continue
+		}
+
+		filePath := filepath.Join(dest, header.Name)
+
+		switch header.Typeflag {
+		case tar.TypeDir:
+			if err := os.MkdirAll(filepath.Join(dest, header.Name), 0755); err != nil {
+				return err
+			}
+		case tar.TypeReg:
+			outFile, err := os.Create(filePath)
+			if err != nil {
+				return err
+			}
+			if _, err := io.Copy(outFile, tarReader); err != nil {
+				return err
+			}
+			outFile.Close()
+		default:
+			log.Warn("Unable to handle filetype", zap.String("Typeflag", string(header.Typeflag)), zap.String("Filename", header.Name))
+		}
+	}
+	return nil
+}
+
+// Return YAML PIS files as a string
+func extractYamlData(dir string) (string, error) {
+	var allContent strings.Builder // Using a string builder to accumulate content
+
+	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err // Only returning error since Walk callback doesn't accept string
+		}
+
+		// Check if the path contains 'pis' and has a .yaml or .yml extension
+		if strings.Contains(path, "/pis/") && !info.IsDir() &&
+			(strings.HasSuffix(info.Name(), ".yaml") || strings.HasSuffix(info.Name(), ".yml")) {
+			log.Debug("Processing YAML", zap.String("directory", path))
+
+			file, err := os.Open(path)
+			if err != nil {
+				return fmt.Errorf("failed to open YAML file %s: %v", path, err)
+			}
+			defer file.Close()
+
+			content, err := io.ReadAll(file)
+			if err != nil {
+				return fmt.Errorf("failed to read YAML file %s: %v", path, err)
+			}
+
+			// Accumulate content from each YAML file in 'pis' directory
+			allContent.Write(content)
+			allContent.WriteString("\n") // Add a newline between file contents
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return "", err
+	}
+
+	// Return the accumulated content as a single string
+	return allContent.String(), nil
+}
+
+// Cleans up downloaded and extracted files
+func cleanupFiles(paths ...string) {
+	for _, path := range paths {
+		err := os.RemoveAll(path)
+		if err != nil {
+			log.Warn("Error removing file", zap.String("path", path), zap.Error(err))
+		}
+	}
+}

src/dbAccess/access.go

@@ -1,59 +0,0 @@
-package dbAccess
-
-import (
-	"context"
-
-	"git.fjla.uk/owlboard/go-types/pkg/database"
-	"git.fjla.uk/owlboard/mq-client/helpers"
-	"git.fjla.uk/owlboard/mq-client/log"
-	"go.mongodb.org/mongo-driver/bson"
-	"go.mongodb.org/mongo-driver/mongo/options"
-)
-
-const timetableCollection string = "timetable"
-const databaseName string = "owlboard"
-
-func init() {
-	version := database.Version{
-		Target:    "mq-client",
-		Component: "mq-client",
-		Version:   helpers.Version,
-	}
-	versionSelector := database.VersionSelector{
-		Target:    "mq-client",
-		Component: "mq-client",
-	}
-	opts := options.Update().SetUpsert(true)
-	coll := MongoClient.Database("owlboard").Collection("versions")
-	_, err := coll.UpdateOne(context.TODO(), versionSelector, bson.M{"$set": version}, opts)
-	if err != nil {
-		log.Msg.Warn("Unable to push version to database: " + err.Error())
-	} else {
-		log.Msg.Debug("Version up to date in Database")
-	}
-}
-
-func PutOneService(data database.Service) bool {
-	coll := MongoClient.Database(databaseName).Collection(timetableCollection)
-	_, err := coll.InsertOne(context.TODO(), data)
-	if err != nil {
-		log.Msg.Error("Unable to insert to database: " + err.Error())
-		return false
-	}
-	return true
-}
-
-func DeleteOneService(data database.DeleteQuery) bool {
-	coll := MongoClient.Database(databaseName).Collection(timetableCollection)
-	var filter = bson.D{
-		{Key: "trainUid", Value: data.TrainUid},
-		{Key: "stpIndicator", Value: data.StpIndicator},
-		{Key: "scheduleStartDate", Value: data.ScheduleStartDate},
-	}
-	_, err := coll.DeleteOne(context.TODO(), filter)
-	if err != nil {
-		log.Msg.Error("Unable to delete service: " + err.Error())
-		return false
-	}
-	return true
-}

src/dbAccess/client.go

@@ -1,72 +0,0 @@
-package dbAccess
-
-import (
-	"git.fjla.uk/owlboard/mq-client/log"
-
-	"context"
-	"fmt"
-	"os"
-	"time"
-
-	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
-)
-
-// Generate DB Url
-var dbUri string = getDbUri()
-
-func getDbUri() string {
-	log.Msg.Debug("Fetching DB Access details")
-	var dbHost string = os.Getenv("OWL_DB_HOST")
-	if dbHost == "" {
-		dbHost = "localhost"
-	}
-	var dbPort string = os.Getenv("OWL_DB_PORT")
-	if dbPort == "" {
-		dbPort = "27017"
-	}
-	var dbUser string = os.Getenv("OWL_DB_USER")
-	if dbUser == "" {
-		dbUser = "owl"
-	}
-	var dbPass string = os.Getenv("OWL_DB_PASS")
-	if dbPass == "" {
-		dbPass = "twittwoo"
-	}
-	var uri = "mongodb://" + dbUser + ":" + dbPass + "@" + dbHost + ":" + dbPort
-	return uri
-}
-
-// Provide the DB Connection to other functions
-var MongoClient (*mongo.Client) = initDataAccess()
-
-// Configure bsonOpts
-var bsonOpts = &options.BSONOptions{
-	UseJSONStructTags: true,
-}
-
-// Initialise the DB Connection
-func initDataAccess() *mongo.Client {
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-	client, err := mongo.Connect(ctx, options.Client().ApplyURI(dbUri).SetBSONOptions(bsonOpts))
-	if err != nil {
-		fmt.Println(err)
-		log.Msg.Fatal("Error connecting to database: " + err.Error())
-	} else {
-		log.Msg.Info("Database connection successful")
-	}
-	return client
-}
-
-func CloseMongoClient() {
-	if MongoClient != nil {
-		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-		defer cancel()
-		if err := MongoClient.Disconnect(ctx); err != nil {
-			log.Msg.Warn("Error disconnecting MongoDB client: " + err.Error())
-		} else {
-			log.Msg.Info("MongoDB client disconnected.")
-		}
-	}
-}

src/go.mod

@@ -1,25 +0,0 @@
-module git.fjla.uk/owlboard/mq-client
-
-go 1.19
-
-require (
-	git.fjla.uk/owlboard/go-types v0.0.0-20230727192011-171bd3eafd83
-	github.com/go-stomp/stomp/v3 v3.0.5
-	go.mongodb.org/mongo-driver v1.12.0
-	go.uber.org/zap v1.24.0
-)
-
-require (
-	github.com/golang/snappy v0.0.1 // indirect
-	github.com/klauspost/compress v1.13.6 // indirect
-	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
-	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
-	github.com/xdg-go/scram v1.1.2 // indirect
-	github.com/xdg-go/stringprep v1.0.4 // indirect
-	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
-	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
-	golang.org/x/text v0.7.0 // indirect
-)

src/log/log.go

@@ -1,35 +0,0 @@
-package log
-
-import (
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
-
-	"git.fjla.uk/owlboard/mq-client/helpers"
-)
-
-var Msg *zap.Logger
-
-func init() {
-	var err error
-
-	// Create a custom configuration with a human-readable "Console" encoder
-	config := zap.NewDevelopmentConfig()
-	config.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder // Adds color to log levels
-
-	// Determine the log level based on the runtime mode
-	logLevel := zapcore.DebugLevel
-	if helpers.Runtime == "production" {
-		logLevel = zapcore.InfoLevel
-	}
-
-	// Set the log level
-	config.Level = zap.NewAtomicLevelAt(logLevel)
-
-	Msg, err = config.Build() // Potential source of the error
-	if err != nil {
-		panic("Failed to initialize logger: " + err.Error())
-	}
-
-	// Log the selected log level (optional, can be helpful for debugging)
-	Msg.Info("Log level set to: " + logLevel.String())
-}

src/main.go

@@ -1,51 +0,0 @@
-package main
-
-import (
-	"os"
-	"os/signal"
-	"syscall"
-
-	"git.fjla.uk/owlboard/mq-client/dbAccess"
-	"git.fjla.uk/owlboard/mq-client/helpers"
-	"git.fjla.uk/owlboard/mq-client/log"
-	"git.fjla.uk/owlboard/mq-client/messaging"
-	"git.fjla.uk/owlboard/mq-client/vstp"
-)
-
-func main() {
-	log.Msg.Info("Initialised OwlBoard MQ Client " + helpers.Version)
-
-	defer cleanup()
-
-	go handleSignals()
-
-	vstp.Subscribe()
-}
-
-// Traps SIGINT and SIGTERM signals and ensures cleanup() is run
-func handleSignals() {
-	sigChan := make(chan os.Signal, 1)
-	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
-
-	sig := <-sigChan
-	log.Msg.Warn("Signal received: " + sig.String())
-	cleanup()
-	os.Exit(1)
-}
-
-// Cleans up open connections ready for a clean exit of the program
-func cleanup() {
-	log.Msg.Debug("Cleaning up open connections")
-	if messaging.Client != nil {
-		log.Msg.Info("Closing STOMP Client")
-		messaging.Disconnect(messaging.Client)
-	}
-	if dbAccess.MongoClient != nil {
-		log.Msg.Info("Closing MongoDB Client")
-		dbAccess.CloseMongoClient()
-	}
-	log.Msg.Info("Program ready to exit")
-	if log.Msg != nil {
-		log.Msg.Sync()
-	}
-}

src/messaging/client.go

@@ -1,64 +0,0 @@
-package messaging
-
-import (
-	"os"
-
-	"git.fjla.uk/owlboard/mq-client/log"
-
-	"github.com/go-stomp/stomp/v3"
-)
-
-type nrodCredential struct {
-	user string
-	pass string
-}
-
-// Fetches credentials from environment variables and exits if none provided.
-func getCredentials() nrodCredential {
-	var nrod_user string = os.Getenv("OWL_LDB_CORPUSUSER")
-	var nrod_pass string = os.Getenv("OWL_LDB_CORPUSPASS")
-	if nrod_user == "" || nrod_pass == "" {
-		log.Msg.Fatal("No NROD Credentials provided")
-	}
-	log.Msg.Debug("NROD Credentials loaded for user: " + nrod_user)
-	return nrodCredential{
-		user: nrod_user,
-		pass: nrod_pass,
-	}
-}
-
-var Client = dial()
-
-// Connects the STOMP file to the Network Rail MQ Server
-func dial() *stomp.Conn {
-	var credentials nrodCredential = getCredentials()
-	conn, err := stomp.Dial("tcp", "publicdatafeeds.networkrail.co.uk:61618",
-		stomp.ConnOpt.Login(credentials.user, credentials.pass),
-		stomp.ConnOpt.HeartBeat(15000, 15000),
-		stomp.ConnOpt.Header("client-id", credentials.user+"-mq-client"),
-	)
-	if err != nil {
-		log.Msg.Fatal("Unable to connect to STOMP Client: " + err.Error())
-		conn.MustDisconnect()
-	}
-
-	log.Msg.Info("Initialised STOMP Client")
-	return conn
-}
-
-// Handles graceful disconnection of the STOMP client, falls back to
-// a force disconnect if this fails.
-func Disconnect(conn *stomp.Conn) {
-	if conn != nil {
-		err := conn.Disconnect()
-		log.Msg.Warn("Disconnected STOMP Client")
-		if err != nil {
-			conn.MustDisconnect()
-			log.Msg.Error("STOMP Disconnection failed, forced disconnect")
-		}
-		return
-	}
-	log.Msg.Error("STOMP Disconnect failed, next connection attempt may fail")
-}
-
-// Register against the MQ Server and log each message for testing purposes

src/vstp/actions.go

@@ -1,55 +0,0 @@
-package vstp
-
-import (
-	"fmt"
-
-	"git.fjla.uk/owlboard/go-types/pkg/database"
-	"git.fjla.uk/owlboard/mq-client/dbAccess"
-	"git.fjla.uk/owlboard/mq-client/log"
-)
-
-// Decide, based on the DB Formatted message type, what action needs taking
-// then either insert, or delete from the database as required
-func processEntryType(entry database.Service) {
-
-	switch entry.TransactionType {
-	case "Create":
-		createEntry(entry)
-	case "Update":
-		updateEntry(entry)
-	case "Delete":
-		deleteEntry(entry)
-	default:
-		log.Msg.Error("Unknown transaction type: " + entry.TransactionType)
-	}
-}
-
-func createEntry(entry database.Service) {
-	log.Msg.Info("Entry Creation requested for: " + entry.TrainUid + " - " + entry.Headcode + " - " + entry.Operator)
-	status := dbAccess.PutOneService(entry)
-	if status {
-		log.Msg.Info("Database entry created")
-	} else {
-		log.Msg.Error("Database entry failed, skipped service")
-	}
-}
-
-func updateEntry(entry database.Service) {
-	log.Msg.Info("Entry UPDATE requested for: " + entry.TrainUid + " - " + entry.Headcode + " - " + entry.Operator)
-}
-
-func deleteEntry(entry database.Service) {
-	log.Msg.Info("Entry DELETE requested for: " + entry.TrainUid + " - " + entry.Headcode)
-	var deletionQuery = database.DeleteQuery{
-		TrainUid:          entry.TrainUid,
-		ScheduleStartDate: entry.ScheduleStartDate,
-		StpIndicator:      entry.StpIndicator,
-	}
-	status := dbAccess.DeleteOneService(deletionQuery)
-	if status {
-		log.Msg.Info("Database entry deleted")
-	} else {
-		log.Msg.Error("Database deletion failed, skipped deletion")
-		fmt.Printf("%+v\n", deletionQuery)
-	}
-}

src/vstp/handler.go

@@ -1,17 +0,0 @@
-package vstp
-
-import (
-	"fmt"
-
-	"git.fjla.uk/owlboard/mq-client/log"
-	"github.com/go-stomp/stomp/v3"
-)
-
-var count uint64 = 0
-
-func handle(msg *stomp.Message) {
-	count++
-	log.Msg.Info("Messages since started: " + fmt.Sprint(count))
-	schedule := unmarshalData(string(msg.Body))
-	processEntryType(schedule)
-}

src/vstp/parser.go

@@ -1,158 +0,0 @@
-package vstp
-
-import (
-	"encoding/json"
-	"fmt"
-	"strconv"
-	"strings"
-	"time"
-
-	"git.fjla.uk/owlboard/go-types/pkg/database"
-	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
-	"git.fjla.uk/owlboard/mq-client/helpers"
-	"git.fjla.uk/owlboard/mq-client/log"
-)
-
-// Unmarshals the JSON data and runs it through the formatData() function and returns the data in a DB ready Struct
-func unmarshalData(jsonData string) database.Service {
-	var schedule upstreamApi.MsgData
-	err := json.Unmarshal([]byte(jsonData), &schedule)
-	if err != nil {
-		log.Msg.Error("Unable to unmarshal message body: " + err.Error())
-		//return err
-	}
-	log.Msg.Debug("Unmarshalling Complete")
-
-	if schedule.Data.CIFMsg.ScheduleSegment == nil {
-		log.Msg.Warn("ScheduleSegment is nil")
-	} else if len(schedule.Data.CIFMsg.ScheduleSegment) == 0 {
-		log.Msg.Warn("ScheduleSegment is empty")
-	}
-	return formatData(&schedule.Data.CIFMsg)
-}
-
-// Transforms the upstreamApi.Schedule type into a database.Service type
-func formatData(dataInput *upstreamApi.Schedule) database.Service {
-	log.Msg.Debug("ScheduleSegment length: " + fmt.Sprint(len(dataInput.ScheduleSegment)))
-	log.Msg.Debug("Printing dataInput to console:")
-
-	var operator, headcode, powerType string
-	var planSpeed int32
-	var stops []database.Stop
-
-	// Check that the ScheduleSegment contains data, 'Delete' messages have no ScheduleSegment
-	if len(dataInput.ScheduleSegment) > 0 {
-		operator = dataInput.ScheduleSegment[0].ATOCCode
-		headcode = dataInput.ScheduleSegment[0].SignallingID
-		powerType = dataInput.ScheduleSegment[0].CIFPowerType
-		planSpeed = parseSpeed(dataInput.ScheduleSegment[0].CIFSpeed)
-		stops = parseStops(dataInput.ScheduleSegment[0].ScheduleLocation)
-	}
-	if operator == "" {
-		operator = "UK"
-	}
-	service := database.Service{
-		TransactionType:   dataInput.TransactionType,
-		StpIndicator:      dataInput.CIFSTPIndicator,
-		Vstp:              true,
-		Operator:          operator,
-		TrainUid:          dataInput.CIFTrainUID,
-		Headcode:          headcode,
-		PowerType:         powerType,
-		PlanSpeed:         planSpeed,
-		ScheduleStartDate: parseDate(dataInput.ScheduleStartDate, false),
-		ScheduleEndDate:   parseDate(dataInput.ScheduleEndDate, true),
-		DaysRun:           parseDaysRun(dataInput.ScheduleDaysRun),
-		Stops:             stops,
-	}
-	return service
-}
-
-// Uses the map provided in 'helpers' to translate incorrect CIF speeds to their correct equivalent
-func parseSpeed(CIFSpeed string) int32 {
-	log.Msg.Debug("CIFSpeed Input: '" + CIFSpeed + "'")
-	if CIFSpeed == "" {
-		log.Msg.Debug("Speed data not provided")
-		return int32(0)
-	}
-	actualSpeed, exists := helpers.SpeedMap[CIFSpeed]
-	if !exists {
-		actualSpeed = CIFSpeed
-	}
-	log.Msg.Debug("Corrected Speed: " + actualSpeed)
-
-	speed, err := strconv.ParseInt(actualSpeed, 10, 32)
-	if err != nil {
-		log.Msg.Warn("Unable to parse speed: " + CIFSpeed + ", returning 0")
-		return int32(0)
-	}
-	return int32(speed)
-}
-
-// Converts the date string provided from the upstream API into a proper Date type and adds a time
-func parseDate(dateString string, end bool) time.Time {
-	log.Msg.Debug("Date Input: " + dateString)
-	date, err := time.Parse("2006-01-02", dateString)
-	if err != nil {
-		log.Msg.Error("Unable to parse date: " + dateString)
-		return time.Time{}
-	}
-
-	var hour, minute, second, nanosecond int
-	location := time.UTC
-	if end {
-		hour, minute, second, nanosecond = 23, 59, 59, 999999999
-	} else {
-		hour, minute, second, nanosecond = 0, 0, 0, 0
-	}
-
-	dateWithTime := time.Date(date.Year(), date.Month(), date.Day(), hour, minute, second, nanosecond, location)
-	log.Msg.Debug("Parsed date: " + dateWithTime.String())
-	return dateWithTime
-}
-
-// Converts the binary stype 'daysRun' field into an array of short days
-func parseDaysRun(daysBinary string) []string {
-	log.Msg.Debug("daysRun Input: " + daysBinary)
-	shortDays := []string{"m", "t", "w", "th", "f", "s", "su"}
-	var result []string
-	for i, digit := range daysBinary {
-		if digit == '1' {
-			result = append(result, shortDays[i])
-		}
-	}
-	return result
-}
-
-// Converts an array if upstreamApi.ScheduleLocation types to an array of database.Stop types
-func parseStops(inputStops []upstreamApi.ScheduleLocation) []database.Stop {
-	var stops []database.Stop
-
-	for _, loc := range inputStops {
-		stop := database.Stop{
-			PublicDeparture: parseTimeStrings(loc.PublicDepartureTime),
-			WttDeparture:    parseTimeStrings(loc.ScheduledDepartureTime),
-			PublicArrival:   parseTimeStrings(loc.PublicArrivalTime),
-			WttArrival:      parseTimeStrings(loc.ScheduledArrivalTime),
-			IsPublic:        strings.TrimSpace(loc.PublicDepartureTime) != "" || strings.TrimSpace(loc.PublicArrivalTime) != "",
-			Tiploc:          loc.Tiploc.Tiploc.TiplocId,
-		}
-
-		stops = append(stops, stop)
-	}
-
-	return stops
-}
-
-func parseTimeStrings(t string) string {
-	if t == "" {
-		return t
-	}
-
-	strippedT := strings.TrimSpace(t)
-	if strippedT == "" {
-		return ""
-	} else {
-		return strippedT[:4]
-	}
-}

src/vstp/subscribe.go

@@ -1,39 +0,0 @@
-package vstp
-
-import (
-	"time"
-
-	"git.fjla.uk/owlboard/mq-client/log"
-	"git.fjla.uk/owlboard/mq-client/messaging"
-	"github.com/go-stomp/stomp/v3"
-)
-
-func Subscribe() {
-	sub, err := messaging.Client.Subscribe("/topic/VSTP_ALL", stomp.AckAuto)
-	if err != nil {
-		log.Msg.Fatal("Unable to start subscription: " + err.Error())
-	}
-	log.Msg.Info("Subscription to VSTP topic successful, listening")
-
-	go func() {
-		log.Msg.Debug("GOROUTINE: VSTP Message Handler Started")
-		defer func() {
-			if r := recover(); r != nil {
-				log.Msg.Warn("GOROUTINE: VSTP Message Handler Stopped")
-				time.Sleep(time.Second * 10)
-				log.Msg.Fatal("GOROUTINE: VSTP Message Handler Failed")
-			}
-		}()
-		for {
-			msg := <-sub.C
-			if msg.Err != nil {
-				log.Msg.Error("STOMP Message Error: " + msg.Err.Error())
-			} else {
-				log.Msg.Info("STOMP Message Received")
-				handle(msg)
-			}
-		}
-	}()
-
-	select {}
-}

stations/check.go

@@ -0,0 +1,72 @@
+package stations
+
+import (
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"go.uber.org/zap"
+)
+
+func Check() {
+	oldMetadata, err := dbAccess.GetStationsMetadata()
+	if err != nil {
+		log.Error("Error reading Stations metadata", zap.Error(err))
+	}
+	if oldMetadata == nil {
+		log.Info("No old metadata for stations, rebuilding")
+	} else {
+		timeSinceLastUpdate := time.Since(oldMetadata.LastUpdate)
+		if timeSinceLastUpdate <= time.Hour*24*7 {
+			log.Info("Stations update not required")
+			return
+		}
+	}
+
+	ok := run()
+	if !ok {
+		log.Error("Error updating Stations data")
+	}
+}
+
+func run() bool {
+	// Download
+	data, data2, err := download()
+	log.Info("Downloaded station data from two sources")
+	if err != nil {
+		log.Error("error downloading station data", zap.Error(err))
+		return false
+	}
+
+	// Parse
+	stations, err := parseData(data, data2)
+	log.Info("Parsed station data")
+	if err != nil {
+		log.Error("error parsing station data", zap.Error(err))
+		return false
+	}
+
+	// Drop
+	err = dbAccess.DropCollection("stations")
+	if err != nil {
+		log.Error("Error dropping stations collection", zap.Error(err))
+	}
+
+	// Push
+	err = dbAccess.PutManyNewStations(&stations)
+	if err != nil {
+		log.Error("Error putting new station data", zap.Error(err))
+	}
+
+	err = dbAccess.CreateStationIndeces()
+	if err != nil {
+		log.Error("Error creating station indeces", zap.Error(err))
+	}
+
+	ok := dbAccess.SetStationsMetadata(time.Now())
+	if !ok {
+		log.Warn("Error setting new metadata for Stations")
+	}
+
+	return true
+}

stations/parse.go

@@ -0,0 +1,81 @@
+package stations
+
+import (
+	"bytes"
+	"encoding/xml"
+	"fmt"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+)
+
+// Parses n number of XML byte arrays
+func parseData(data ...[]byte) ([]database.Station, error) {
+	var stations []upstreamApi.Station
+	for _, d := range data {
+		parsedStations, err := parseXML(d)
+		if err != nil {
+			return nil, err
+		}
+		stations = append(stations, parsedStations...)
+	}
+
+	var output []database.Station
+	for _, s := range stations {
+		outputStation, err := convertApiToDatabase(s)
+		if err != nil {
+			return nil, err
+		}
+		output = append(output, outputStation)
+	}
+	return output, nil
+}
+
+// Parses XML and converts to struct
+func parseXML(data []byte) ([]upstreamApi.Station, error) {
+	var stationList upstreamApi.StationList
+
+	reader := bytes.NewReader(data)
+	decoder := xml.NewDecoder(reader)
+	err := decoder.Decode(&stationList)
+	if err != nil {
+		return nil, fmt.Errorf("error parsing XML: %v", err)
+	}
+
+	return stationList.Stations, nil
+}
+
+// Convert API type to Database type ready for insertion
+func convertApiToDatabase(data upstreamApi.Station) (database.Station, error) {
+	if data.CrsCode == "" {
+		return database.Station{}, fmt.Errorf("CRS code is required but missing")
+	}
+
+	tiploc, err := dbAccess.GetTiplocFromCrs(data.CrsCode)
+	if err != nil {
+		return database.Station{}, err
+	}
+
+	stanox, err := dbAccess.GetStanoxFromCrs(data.CrsCode)
+	if err != nil {
+		return database.Station{}, err
+	}
+
+	output := database.Station{
+		CRS:     data.CrsCode,
+		TIPLOC:  tiploc,
+		STANOX:  stanox,
+		NLCDESC: data.Name,
+		Location: database.GeoJson{
+			Type: "Point",
+			Coordinates: []float64{
+				data.Longitude,
+				data.Latitude,
+			},
+		},
+		Operator: data.StationOperator,
+	}
+
+	return output, nil
+}

stations/run.go

@@ -0,0 +1,93 @@
+package stations
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+)
+
+const (
+	// URL to RDG XML file
+	url string = "https://internal.nationalrail.co.uk/4.0/stations.zip"
+
+	// URL to additional XML file
+	add string = "https://git.fjla.uk/OwlBoard/data/raw/branch/main/knowledgebase/additional.xml"
+)
+
+func download() ([]byte, []byte, error) {
+	data1, err := downloadAndExtractZip(url)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	data2, err := downloadUrl(add)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return data1, data2, nil
+}
+
+func downloadUrl(url string) ([]byte, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("failed to download from %s: status code: %d", url, resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	return body, nil
+}
+
+func downloadAndExtractZip(url string) ([]byte, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("failed to download from %s: status code %d", url, resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	// Read zip
+	reader, err := zip.NewReader(bytes.NewReader(body), int64(len(body)))
+	if err != nil {
+		return nil, err
+	}
+
+	// Check zip not empty
+	if len(reader.File) == 0 {
+		return nil, fmt.Errorf("no files found in the zip archive")
+	}
+
+	// Read first file
+	file := reader.File[0]
+	rc, err := file.Open()
+	if err != nil {
+		return nil, err
+	}
+	defer rc.Close()
+
+	extractedData, err := io.ReadAll(rc)
+	if err != nil {
+		return nil, err
+	}
+
+	return extractedData, nil
+}

test-db.compose.yaml

@@ -0,0 +1,14 @@
+version: '3.8'
+services:
+  mongodb:
+    image: mongo:7
+    ports:
+      - '27017:27017'
+    volumes:
+      - dbdata7:/data/db
+    environment:
+      - MONGO_INITDB_ROOT_USERNAME=owl
+      - MONGO_INITDB_ROOT_PASSWORD=twittwoo
+    restart: unless-stopped
+volumes:
+  dbdata7:

vstp/actions.go

@@ -0,0 +1,44 @@
+package vstp
+
+import (
+	"fmt"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/cif"
+	"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
+)
+
+// Converts to the correct struct for database insertion, then processes accordingly
+func processCifData(s *upstreamApi.JsonScheduleV1) error {
+
+	if s.TransactionType == "Create" {
+		service, err := cif.ConvertServiceType(s, true)
+		if err != nil {
+			return err
+		}
+		// Create slice as required by CreateCifEntries()
+		services := []database.Service{*service}
+		err = dbAccess.CreateCifEntries(services)
+		if err != nil {
+			return err
+		}
+		return nil
+
+	} else if s.TransactionType == "Delete" {
+		query := database.DeleteQuery{
+			TrainUid:          s.CifTrainUid,
+			ScheduleStartDate: cif.ParseCifDate(&s.ScheduleStartDate, "start"),
+			StpIndicator:      s.CifStpIndicator,
+		}
+		// Create slice as required by DeleteCifEntries()
+		queries := []database.DeleteQuery{query}
+		err := dbAccess.DeleteCifEntries(queries)
+		if err != nil {
+			return err
+		}
+		return nil
+	} else {
+		return fmt.Errorf("unknown transaction type: %s", s.TransactionType)
+	}
+}

vstp/convert.go

@@ -0,0 +1,107 @@
+package vstp
+
+import (
+	"errors"
+	"strings"
+
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+)
+
+// Simple type conversion
+func convertCifType(in *upstreamApi.VSTPSchedule) (error, *upstreamApi.JsonScheduleV1) {
+	if in == nil {
+		return errors.New("input is nil"), nil
+	}
+
+	// Delete Message Example - Does not process as is.
+	//	{"VSTPCIFMsgV1":{"schedule":{"transaction_type":"Delete","train_status":" ","schedule_start_date":"2024-04-29","schedule_end_date":"2024-04-29","schedule_days_runs":"1000000","CIF_train_uid":" 68613","CIF_stp_indicator":"N","CIF_bank_holiday_running":" "},"Sender":{"organisation":"Network Rail","application":"TSIA","component":"TSIA","userID":"#QJP0070","sessionID":"CT02000"},"classification":"industry","timestamp":"1714372444000","owner":"Network Rail","originMsgId":"2024-04-29T06:34:04-00:00@vstp.networkrail.co.uk"}}
+
+	out := &upstreamApi.JsonScheduleV1{
+		TransactionType:       in.TransactionType,
+		CifBankHolidayRunning: in.CifBankHolidayRunning,
+		CifStpIndicator:       in.CifStpIndicator,
+		CifTrainUid:           in.CifTrainUid,
+		ApplicableTimetable:   in.ApplicableTimetable,
+		ScheduleDaysRun:       in.ScheduleDaysRun,
+		ScheduleStartDate:     in.ScheduleStartDate,
+		ScheduleEndDate:       in.ScheduleEndDate,
+	}
+
+	if len(in.ScheduleSegment) > 0 {
+		if len(in.ScheduleSegment) > 1 {
+			log.Warn("More than one element in schedule segment")
+		}
+		out.ScheduleSegment = convertSchedule(&in.ScheduleSegment[0])
+		if trim(in.ScheduleSegment[0].AtocCode) != "" {
+			out.AtocCode = in.ScheduleSegment[0].AtocCode
+		} else {
+			out.AtocCode = "UK"
+		}
+		return nil, out
+	} else {
+		log.Warn("VSTP Schedule Segment empty")
+		return errors.New("schedule segment empty"), nil
+	}
+}
+
+func convertSchedule(in *upstreamApi.VSTPScheduleSegment) upstreamApi.CifScheduleSegment {
+	out := upstreamApi.CifScheduleSegment{
+		SignallingId:                in.SignallingId,
+		CifTrainCategory:            in.CifTrainCategory,
+		CifHeadcode:                 in.CifHeadcode,
+		CifTrainServiceCode:         in.CifTrainServiceCode,
+		CifBusinessSector:           in.CifBusinessSector,
+		CifPowerType:                in.CifPowerType,
+		CifTimingLoad:               in.CifTimingLoad,
+		CifSpeed:                    in.CifSpeed,
+		CifOperatingCharacteristics: in.CifOperatingCharacteristics,
+		CifTrainClass:               in.CifTrainClass,
+		CifSleepers:                 in.CifSleepers,
+		CifReservations:             in.CifReservations,
+		CifCateringCode:             in.CifCateringCode,
+		ScheduleLocation:            *convertLocations(&in.ScheduleLocation),
+	}
+
+	return out
+}
+
+func convertLocations(in *[]upstreamApi.VSTPScheduleLocation) *[]upstreamApi.CifScheduleLocation {
+	if in == nil {
+		log.Error("Input is nil")
+		return nil
+	}
+
+	cifLocations := make([]upstreamApi.CifScheduleLocation, len(*in))
+
+	for i, loc := range *in {
+		cifLoc := upstreamApi.CifScheduleLocation{
+			TiplocCode:           trim(loc.Location.Tiploc.TiplocId),
+			Arrival:              convertTime(trim(loc.Arrival)),
+			PublicArrival:        convertTime(trim(loc.PublicArrival)),
+			Departure:            convertTime(trim(loc.Departure)),
+			PublicDeparture:      convertTime(trim(loc.PublicDeparture)),
+			Pass:                 convertTime(trim(loc.Pass)),
+			Path:                 trim(loc.Path),
+			Platform:             trim(loc.Platform),
+			EngineeringAllowance: trim(loc.EngineeringAllowance),
+			PathingAllowance:     trim(loc.PathingAllowance),
+			PerformanceAllowance: trim(loc.PerformanceAllowance),
+		}
+
+		cifLocations[i] = cifLoc
+	}
+
+	return &cifLocations
+}
+
+func convertTime(in string) string {
+	if len(in) < 4 {
+		return in
+	}
+	return in[:4]
+}
+
+func trim(s string) string {
+	return strings.TrimSpace(s)
+}

vstp/handler.go

@@ -0,0 +1,31 @@
+package vstp
+
+import (
+	"fmt"
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"github.com/go-stomp/stomp/v3"
+	"go.uber.org/zap"
+)
+
+func handle(msg *stomp.Message) {
+	start := time.Now()
+	schedule, err := unmarshalData(msg.Body)
+	if err != nil {
+		log.Error("Error unmarshalling VSTP Message", zap.Error(err))
+	}
+	err, convertedType := convertCifType(schedule)
+	if err != nil {
+		log.Error("Error converting VSTP to CIF", zap.Error(err))
+		fmt.Println(string(msg.Body))
+		return
+	}
+	err = processCifData(convertedType)
+	if err != nil {
+		log.Error("Error processing VSTP Schedule", zap.Error(err))
+	}
+	end := time.Now()
+	duration := end.Sub(start)
+	log.Info("Message processed", zap.Duration("processing-time", duration))
+}

vstp/subscribe.go

@@ -0,0 +1,63 @@
+package vstp
+
+import (
+	"time"
+
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+	"git.fjla.uk/owlboard/timetable-mgr/messaging"
+	"github.com/go-stomp/stomp/v3"
+	"go.uber.org/zap"
+)
+
+func Subscribe() {
+	var sub *stomp.Subscription
+	var err error
+	retryCount := 0
+	maxRetries := 5
+
+	for retryCount < maxRetries {
+		sub, err = messaging.Client.Subscribe("/topic/VSTP_ALL", stomp.AckAuto)
+		if err != nil {
+			log.Warn("Unable to start subscription", zap.Error(err))
+			time.Sleep(10 * time.Second)
+			retryCount++
+			continue
+		}
+		break
+	}
+
+	if sub == nil {
+		log.Fatal("Failed to subscribe to VSTP topic", zap.Int("attempts", maxRetries))
+	}
+
+	log.Info("Subscription to VSTP topic successful, listening")
+
+	go func() {
+		for {
+			func() {
+				defer func() {
+					if r := recover(); r != nil {
+						log.Warn("VSTP Message Handler Stopped, waiting for recovery")
+						time.Sleep(time.Second * 10)
+					}
+				}()
+				log.Info("VSTP Message handler started")
+				for {
+					msg := <-sub.C
+					if msg.Err != nil {
+						log.Error("VSTP Message Error", zap.Error(msg.Err))
+					} else {
+						if msg != nil {
+							log.Debug("VSTP Message Received")
+							handle(msg)
+						} else {
+							log.Info("VSTP Message Empty")
+						}
+					}
+				}
+			}()
+		}
+	}()
+
+	select {}
+}

vstp/unmarshaller.go

@@ -0,0 +1,20 @@
+package vstp
+
+import (
+	"encoding/json"
+
+	"git.fjla.uk/owlboard/go-types/pkg/upstreamApi"
+	"git.fjla.uk/owlboard/timetable-mgr/log"
+)
+
+// Unmarshals the JSON data and returns the schedule data
+func unmarshalData(jsonData []byte) (*upstreamApi.VSTPSchedule, error) {
+	var schedule upstreamApi.MsgData
+	err := json.Unmarshal(jsonData, &schedule)
+	if err != nil {
+		log.Error("Unable to unmarshal message body: " + err.Error())
+		return nil, err
+	}
+	log.Debug("Unmarshalling Complete")
+	return &schedule.Data.CIFMsg, nil
+}