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evdist: Publish next settings change

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This commit is contained in:
nemunaire 2024-03-17 16:49:15 +01:00
commit 0db9e9b539
5 changed files with 76 additions and 21 deletions
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61
evdist/settings.go
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@ -12,8 +12,12 @@ import (
"time"
"srs.epita.fr/fic-server/settings"
"gopkg.in/fsnotify.v1"
)
var PublishNextChangeIndication = true
// NewDistList creates a distList from the given src directory
func NewSettingsDistList(src string) (*distList, error) {
list, err := settings.ListNextSettingsFiles()
@ -74,12 +78,33 @@ func newSettingsFile(l *distList, raw_path string) {
l.AddEvent(&settings.NextSettingsFile{
Id: ts,
Date: activateTime,
})
}, updateNextSettingsTime)
} else {
log.Println("WARNING: Unknown file to treat: not a valid timestamp:", err.Error())
}
}
func saveSettingsFile(cur_settings *settings.Settings) error {
if watchedNotify == fsnotify.Create {
err := settings.SaveSettings(path.Join(TmpSettingsDirectory, "settings.json"), cur_settings)
if err != nil {
return fmt.Errorf("Unable to save settings.json to tmp dir: %w", err)
}
err = os.Rename(path.Join(TmpSettingsDirectory, "settings.json"), path.Join(settings.SettingsDir, "settings.json"))
if err != nil {
return fmt.Errorf("Unable to move settings.json to dest dir: %w", err)
}
} else {
err := settings.SaveSettings(path.Join(settings.SettingsDir, "settings.json"), cur_settings)
if err != nil {
return fmt.Errorf("Unable to save settings.json to tmp dir: %w", err)
}
}
return nil
}
func treatSettingsFile(e DistEvent) {
v, err := settings.ReadNextSettingsFile(path.Join(settings.SettingsDir, fmt.Sprintf("%d.json", e.GetId())), e.GetId())
if err != nil {
@ -89,12 +114,38 @@ func treatSettingsFile(e DistEvent) {
} else {
cur_settings = settings.MergeSettings(*cur_settings, v.Values)
if err = settings.SaveSettings(path.Join(TmpSettingsDirectory, "settings.json"), cur_settings); err != nil {
log.Printf("Unable to save settings.json to tmp dir: %s", err.Error())
} else if err = os.Rename(path.Join(TmpSettingsDirectory, "settings.json"), path.Join(settings.SettingsDir, "settings.json")); err != nil {
log.Printf("Unable to move settings.json to dest dir: %s", err.Error())
if err := saveSettingsFile(cur_settings); err != nil {
log.Printf(err.Error())
} else if err = os.Remove(path.Join(settings.SettingsDir, fmt.Sprintf("%d.json", v.Id))); err != nil {
log.Printf("Unable to remove initial diff file (%d.json): %s", v.Id, err.Error())
}
}
}
func updateNextSettingsTime(e DistEvent) {
if !PublishNextChangeIndication {
return
}
log.Println("Updating settings.json to include next settings time")
cur_settings, err := settings.ReadSettings(path.Join(settings.SettingsDir, settings.SettingsFile))
if err != nil {
log.Printf("Unable to read settings.json: %s", err.Error())
return
}
if e == nil {
cur_settings = settings.MergeSettings(*cur_settings, map[string]interface{}{
"nextchangetime": nil,
})
} else {
cur_settings = settings.MergeSettings(*cur_settings, map[string]interface{}{
"nextchangetime": *e.GetDate(),
})
}
err = saveSettingsFile(cur_settings)
if err != nil {
log.Printf(err.Error())
}
}