New data model migration for users, bookmarks and playback sessions

server/objects/user/LibraryItemProgress.js

@@ -0,0 +1,99 @@
+const Logger = require('../../Logger')
+
+class LibraryItemProgress {
+  constructor(progress) {
+    this.id = null // Same as library item id
+    this.libararyItemId = null
+
+    this.totalDuration = null // seconds
+    this.progress = null // 0 to 1
+    this.currentTime = null // seconds
+    this.isRead = false
+
+    this.lastUpdate = null
+    this.startedAt = null
+    this.finishedAt = null
+
+    if (progress) {
+      this.construct(progress)
+    }
+  }
+
+  toJSON() {
+    return {
+      id: this.id,
+      libararyItemId: this.libararyItemId,
+      totalDuration: this.totalDuration,
+      progress: this.progress,
+      currentTime: this.currentTime,
+      isRead: this.isRead,
+      lastUpdate: this.lastUpdate,
+      startedAt: this.startedAt,
+      finishedAt: this.finishedAt
+    }
+  }
+
+  construct(progress) {
+    this.id = progress.id
+    this.libararyItemId = progress.libararyItemId
+    this.totalDuration = progress.totalDuration
+    this.progress = progress.progress
+    this.currentTime = progress.currentTime
+    this.isRead = !!progress.isRead
+    this.lastUpdate = progress.lastUpdate
+    this.startedAt = progress.startedAt
+    this.finishedAt = progress.finishedAt || null
+  }
+
+  updateProgressFromStream(stream) {
+    this.audiobookId = stream.libraryItemId
+    this.totalDuration = stream.totalDuration
+    this.progress = stream.clientProgress
+    this.currentTime = stream.clientCurrentTime
+    this.lastUpdate = Date.now()
+
+    if (!this.startedAt) {
+      this.startedAt = Date.now()
+    }
+
+    // If has < 10 seconds remaining mark as read
+    var timeRemaining = this.totalDuration - this.currentTime
+    if (timeRemaining < 10) {
+      this.isRead = true
+      this.progress = 1
+      this.finishedAt = Date.now()
+    } else {
+      this.isRead = false
+      this.finishedAt = null
+    }
+  }
+
+  update(payload) {
+    var hasUpdates = false
+    for (const key in payload) {
+      if (this[key] !== undefined && payload[key] !== this[key]) {
+        if (key === 'isRead') {
+          if (!payload[key]) { // Updating to Not Read - Reset progress and current time
+            this.finishedAt = null
+            this.progress = 0
+            this.currentTime = 0
+          } else { // Updating to Read
+            if (!this.finishedAt) this.finishedAt = Date.now()
+            this.progress = 1
+          }
+        }
+
+        this[key] = payload[key]
+        hasUpdates = true
+      }
+    }
+    if (!this.startedAt) {
+      this.startedAt = Date.now()
+    }
+    if (hasUpdates) {
+      this.lastUpdate = Date.now()
+    }
+    return hasUpdates
+  }
+}
+module.exports = LibraryItemProgress