1 files changed, 115 insertions, 0 deletions
diff --git a/modules/eventsource/manager_run.go b/modules/eventsource/manager_run.go
new file mode 100644
index 00000000..f66dc78c
--- /dev/null
+++ b/modules/eventsource/manager_run.go
@@ -0,0 +1,115 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package eventsource
+
+import (
+	"context"
+	"time"
+
+	activities_model "code.gitea.io/gitea/models/activities"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/modules/graceful"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/services/convert"
+)
+
+// Init starts this eventsource
+func (m *Manager) Init() {
+	if setting.UI.Notification.EventSourceUpdateTime <= 0 {
+		return
+	}
+	go graceful.GetManager().RunWithShutdownContext(m.Run)
+}
+
+// Run runs the manager within a provided context
+func (m *Manager) Run(ctx context.Context) {
+	ctx, _, finished := process.GetManager().AddTypedContext(ctx, "Service: EventSource", process.SystemProcessType, true)
+	defer finished()
+
+	then := timeutil.TimeStampNow().Add(-2)
+	timer := time.NewTicker(setting.UI.Notification.EventSourceUpdateTime)
+loop:
+	for {
+		select {
+		case <-ctx.Done():
+			timer.Stop()
+			break loop
+		case <-timer.C:
+			m.mutex.Lock()
+			connectionCount := len(m.messengers)
+			if connectionCount == 0 {
+				log.Trace("Event source has no listeners")
+				// empty the connection channel
+				select {
+				case <-m.connection:
+				default:
+				}
+			}
+			m.mutex.Unlock()
+			if connectionCount == 0 {
+				// No listeners so the source can be paused
+				log.Trace("Pausing the eventsource")
+				select {
+				case <-ctx.Done():
+					break loop
+				case <-m.connection:
+					log.Trace("Connection detected - restarting the eventsource")
+					// OK we're back so lets reset the timer and start again
+					// We won't change the "then" time because there could be concurrency issues
+					select {
+					case <-timer.C:
+					default:
+					}
+					continue
+				}
+			}
+
+			now := timeutil.TimeStampNow().Add(-2)
+
+			uidCounts, err := activities_model.GetUIDsAndNotificationCounts(ctx, then, now)
+			if err != nil {
+				log.Error("Unable to get UIDcounts: %v", err)
+			}
+			for _, uidCount := range uidCounts {
+				m.SendMessage(uidCount.UserID, &Event{
+					Name: "notification-count",
+					Data: uidCount,
+				})
+			}
+			then = now
+
+			if setting.Service.EnableTimetracking {
+				usersStopwatches, err := issues_model.GetUIDsAndStopwatch(ctx)
+				if err != nil {
+					log.Error("Unable to get GetUIDsAndStopwatch: %v", err)
+					return
+				}
+
+				for _, userStopwatches := range usersStopwatches {
+					apiSWs, err := convert.ToStopWatches(ctx, userStopwatches.StopWatches)
+					if err != nil {
+						if !issues_model.IsErrIssueNotExist(err) {
+							log.Error("Unable to APIFormat stopwatches: %v", err)
+						}
+						continue
+					}
+					dataBs, err := json.Marshal(apiSWs)
+					if err != nil {
+						log.Error("Unable to marshal stopwatches: %v", err)
+						continue
+					}
+					m.SendMessage(userStopwatches.UserID, &Event{
+						Name: "stopwatches",
+						Data: string(dataBs),
+					})
+				}
+			}
+		}
+	}
+	m.UnregisterAll()
+}