98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
package cif
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import (
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"time"
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"git.fjla.uk/owlboard/timetable-mgr/dbAccess"
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"git.fjla.uk/owlboard/timetable-mgr/helpers"
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"git.fjla.uk/owlboard/timetable-mgr/log"
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"git.fjla.uk/owlboard/timetable-mgr/nrod"
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"go.uber.org/zap"
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)
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// Replaces all existing CIF Data with a new download
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func runCifFullDownload(cfg *helpers.Configuration) error {
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log.Msg.Info("Downloading all CIF Data")
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// Download CIF Data file
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url, err := getUpdateUrl("full")
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if err != nil {
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log.Msg.Error("Error getting download URL", zap.Error(err))
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}
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data, err := nrod.NrodDownload(url, cfg)
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if err != nil {
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log.Msg.Error("Error downloading CIF data", zap.Error(err))
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}
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// Parse CIF file
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parsed, err := parseCifData(data)
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if err != nil {
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log.Msg.Error("Error parsing CIF data", zap.Error(err))
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return err
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}
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// Drop timetable collection
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dbAccess.DropCollection(dbAccess.TimetableCollection)
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// Process CIF file
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err = processParsedCif(parsed)
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if err != nil {
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log.Msg.Error("Error processing CIF data", zap.Error(err))
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}
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// Generate & Write metadata
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return nil
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}
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// Runs a CIF Update for up to five days
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func runCifUpdateDownload(cfg *helpers.Configuration, metadata *dbAccess.CifMetadata, days []time.Time) error {
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log.Msg.Info("Downloading CIF Updates")
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// Loop over dates
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for _, time := range days {
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log.Msg.Info("Downloading CIF File", zap.Time("CIF Data from", time))
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// Download CIF data file
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data, err := fetchUpdate(time, cfg)
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if err != nil {
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log.Msg.Error("Error fetching CIF update", zap.Error(err))
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return err
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}
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// Parse CIF file
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parsed, err := parseCifData(data)
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if err != nil {
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log.Msg.Error("Error parsing CIF data", zap.Error(err))
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return err
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}
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// Check metadata sequence - Handle a metadata sequence error. Probably by deleting metadata so next update triggers full download
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//// I need to check what the sequence looks like in a full download first.
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//// Regarding metadata, I will need to replace 'metadata *dbAccess.CifMetadata' with the new metadata to ensure it is checked correctly in each iteration.
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// Process CIF file
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metadata = generateMetadata(&parsed.header)
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}
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// Write metadata
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return nil
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}
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// Wraps nrod.NrodDownload() into a function which can handle downloading data for a given day
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func fetchUpdate(t time.Time, cfg *helpers.Configuration) ([]byte, error) {
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url, err := getUpdateUrl("daily")
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if err != nil {
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return nil, err
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}
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// Append day string to URL
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url = url + getDayString(t)
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downloadedData, err := nrod.NrodDownload(url, cfg)
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if err != nil {
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return nil, err
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}
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return downloadedData, nil
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}
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