Merge pull request #19743 from overleaf/mj-restore-project

[web+project-history] Add project version reverting

GitOrigin-RevId: 0f77cec730393187d531c0c6561faaa652bebf29

libraries/overleaf-editor-core/lib/origin/index.js

@@ -6,6 +6,7 @@ const assert = require('check-types').assert
 // dependency
 let RestoreOrigin = null
 let RestoreFileOrigin = null
+let RestoreProjectOrigin = null
 
 /**
  * An Origin records where a {@link Change} came from. The Origin class handles
@@ -34,6 +35,8 @@ class Origin {
     if (raw.kind === RestoreOrigin.KIND) return RestoreOrigin.fromRaw(raw)
     if (raw.kind === RestoreFileOrigin.KIND)
       return RestoreFileOrigin.fromRaw(raw)
+    if (raw.kind === RestoreProjectOrigin.KIND)
+      return RestoreProjectOrigin.fromRaw(raw)
     return new Origin(raw.kind)
   }
 
@@ -58,3 +61,4 @@ module.exports = Origin
 
 RestoreOrigin = require('./restore_origin')
 RestoreFileOrigin = require('./restore_file_origin')
+RestoreProjectOrigin = require('./restore_project_origin')

libraries/overleaf-editor-core/lib/origin/restore_project_origin.js

@@ -0,0 +1,51 @@
+'use strict'
+
+const assert = require('check-types').assert
+
+const Origin = require('.')
+
+class RestoreProjectOrigin extends Origin {
+  /**
+   * @param {number} version that was restored
+   * @param {Date} timestamp from the restored version
+   */
+  constructor(version, timestamp) {
+    assert.integer(version, 'RestoreProjectOrigin: bad version')
+    assert.date(timestamp, 'RestoreProjectOrigin: bad timestamp')
+
+    super(RestoreProjectOrigin.KIND)
+    this.version = version
+    this.timestamp = timestamp
+  }
+
+  static fromRaw(raw) {
+    return new RestoreProjectOrigin(raw.version, new Date(raw.timestamp))
+  }
+
+  /** @inheritdoc */
+  toRaw() {
+    return {
+      kind: RestoreProjectOrigin.KIND,
+      version: this.version,
+      timestamp: this.timestamp.toISOString(),
+    }
+  }
+
+  /**
+   * @return {number}
+   */
+  getVersion() {
+    return this.version
+  }
+
+  /**
+   * @return {Date}
+   */
+  getTimestamp() {
+    return this.timestamp
+  }
+}
+
+RestoreProjectOrigin.KIND = 'project-restore'
+
+module.exports = RestoreProjectOrigin