Track watch activity for scenes. (#3055)

* track watchtime and view time
* add view count sorting, added continue position filter
* display metrics in file info
* add toggle for tracking activity
* save activity every 10 seconds
* reset resume when video is nearly complete
* start from beginning when playing scene in queue

Co-authored-by: WithoutPants <53250216+WithoutPants@users.noreply.github.com>

pkg/sqlite/setup_test.go

@@ -944,6 +944,35 @@ func makeSceneFile(i int) *file.VideoFile {
 	}
 }
 
+func getScenePlayCount(index int) int {
+	return index % 5
+}
+
+func getScenePlayDuration(index int) float64 {
+	if index%5 == 0 {
+		return 0
+	}
+
+	return float64(index%5) * 123.4
+}
+
+func getSceneResumeTime(index int) float64 {
+	if index%5 == 0 {
+		return 0
+	}
+
+	return float64(index%5) * 1.2
+}
+
+func getSceneLastPlayed(index int) *time.Time {
+	if index%5 == 0 {
+		return nil
+	}
+
+	t := time.Date(2020, 1, index%5, 1, 2, 3, 0, time.UTC)
+	return &t
+}
+
 func makeScene(i int) *models.Scene {
 	title := getSceneTitle(i)
 	details := getSceneStringValue(i, "Details")
@@ -984,6 +1013,10 @@ func makeScene(i int) *models.Scene {
 		StashIDs: models.NewRelatedStashIDs([]models.StashID{
 			sceneStashID(i),
 		}),
+		PlayCount:    getScenePlayCount(i),
+		PlayDuration: getScenePlayDuration(i),
+		LastPlayedAt: getSceneLastPlayed(i),
+		ResumeTime:   getSceneResumeTime(i),
 	}
 }