Begin PIS implementation

dbAccess/pis.go

@@ -0,0 +1,26 @@
+package dbAccess
+
+import (
+	"context"
+	"errors"
+
+	"git.fjla.uk/owlboard/go-types/pkg/database"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+)
+
+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
+}

go.mod

@@ -3,7 +3,7 @@ module git.fjla.uk/owlboard/timetable-mgr
 go 1.21
 
 require (
-	git.fjla.uk/owlboard/go-types v1.1.6
+	git.fjla.uk/owlboard/go-types v1.1.8
 	github.com/go-stomp/stomp/v3 v3.1.0
 	go.mongodb.org/mongo-driver v1.15.0
 	go.uber.org/zap v1.27.0

go.sum

@@ -1,5 +1,5 @@
-git.fjla.uk/owlboard/go-types v1.1.6 h1:zz6mdzvyq9HKbjQQ8NAMqi2PMDn9uC9KOoSF3654cGI=
+git.fjla.uk/owlboard/go-types v1.1.8 h1:vykPsn23Qh1u2v9+HuyHZ8CVdYFVq3756ReR0B1vDbI=
-git.fjla.uk/owlboard/go-types v1.1.6/go.mod h1:kG+BX9UF+yJaAVnln/QSKlTdrtKRRReezMeSk1ZLMzY=
+git.fjla.uk/owlboard/go-types v1.1.8/go.mod h1:kG+BX9UF+yJaAVnln/QSKlTdrtKRRReezMeSk1ZLMzY=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-stomp/stomp/v3 v3.1.0 h1:JnvRJuua/fX2Lq5Ie5DXzrOL18dnzIUenCZXM6rr8/0=

pis/check.go

@@ -0,0 +1,67 @@
+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)
+
+	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/types.go

@@ -0,0 +1,9 @@
+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"`
+}

pis/update.go

@@ -0,0 +1,7 @@
+package pis
+
+// Downloads the release tarball, extracts then applies to database
+func runUpdate(tarballUrl string) error {
+
+	return nil
+}