admin: add a progression indicator for the deep synchronization

admin/sync/full.go

@@ -18,10 +18,14 @@ var DeepReportPath = "full_import_report.json"
 // oneDeepSync ensure there is no more than one running deep sync.
 var oneDeepSync sync.Mutex
 
+// DeepSyncProgress expose the progression of the depp synchronization (0 = 0%, 255 = 100%).
+var DeepSyncProgress uint8
+
 // SyncDeep performs a recursive synchronisation: from themes to challenge items.
 func SyncDeep(i Importer) (errs map[string][]string) {
 	oneDeepSync.Lock()
 	defer oneDeepSync.Unlock()
+	DeepSyncProgress = 1
 
 	errs = map[string][]string{}
 
@@ -29,19 +33,28 @@ func SyncDeep(i Importer) (errs map[string][]string) {
 	errs["_themes"] = SyncThemes(i)
 
 	if themes, err := fic.GetThemes(); err == nil {
-		for _, theme := range themes {
+		DeepSyncProgress = 2
+		var themeStep uint8 = uint8(250) / uint8(len(themes))
+
+		for tid, theme := range themes {
+			DeepSyncProgress = 3 + uint8(tid) * themeStep
 			errs[theme.Name] = SyncExercices(i, theme)
 
 			if exercices, err := theme.GetExercices(); err == nil {
-				for _, exercice := range exercices {
+				var exerciceStep uint8 = themeStep / uint8(len(exercices))
+				for eid, exercice := range exercices {
+					DeepSyncProgress = 3 + uint8(tid) * themeStep + uint8(eid) * exerciceStep
 					errs[theme.Name] = append(errs[theme.Name], SyncExerciceFiles(i, exercice)...)
+					DeepSyncProgress += exerciceStep / 3
 					errs[theme.Name] = append(errs[theme.Name], SyncExerciceFlags(i, exercice)...)
+					DeepSyncProgress += exerciceStep / 3
 					errs[theme.Name] = append(errs[theme.Name], SyncExerciceHints(i, exercice)...)
 				}
 			}
 		}
 	}
 
+	DeepSyncProgress = 254
 	errs["_date"] = append(errs["_date"], fmt.Sprintf("%v", time.Now()))
 
 	errs["_regeneration"] = []string{}
@@ -66,5 +79,6 @@ func SyncDeep(i Importer) (errs map[string][]string) {
 		errs["_regeneration"] = append(errs["_regeneration"], err.Error())
 	}
 
+	DeepSyncProgress = 255
 	return
 }