refactor GlobalNotificationMailService

src/server/service/global-notification/global-notification-mail.js

@@ -1,4 +1,5 @@
 const logger = require('@alias/logger')('growi:service:GlobalNotificationMailService'); // eslint-disable-line no-unused-vars
+const nodePath = require('path');
 
 /**
  * sub service class of GlobalNotificationSetting
@@ -9,25 +10,111 @@ class GlobalNotificationMailService {
     this.crowi = crowi;
     this.type = 'mail';
     this.mailer = crowi.getMailer();
+    this.event = crowi.model('GlobalNotificationSetting').schema.EVENT;
   }
 
   /**
    * send mail global notification
    *
    * @memberof GlobalNotificationMailService
-   * @param {string} event
-   * @param {string} path
-   * @param {obejct} option
+   *
+   * @param {string} event event name triggered
+   * @param {string} path path triggered the event
+   * @param {User} triggeredBy user who triggered the event
+   * @param {{ comment: Comment, oldPath: string }} _ event specific vars
    */
-  async fire(event, path, option) {
+  async fire(event, path, triggeredBy, vars) {
     const GlobalNotification = this.crowi.model('GlobalNotificationSetting');
     const notifications = await GlobalNotification.findSettingByPathAndEvent(event, path, this.type);
 
+    const option = this.generateOption(event, path, triggeredBy, vars);
+
     await Promise.all(notifications.map((notification) => {
       return this.mailer.send({ ...option, to: notification.toEmail });
     }));
   }
 
+  /**
+   * fire global notification
+   *
+   * @memberof GlobalNotificationMailService
+   *
+   * @param {string} event event name triggered
+   * @param {string} path path triggered the event
+   * @param {User} triggeredBy user triggered the event
+   * @param {{ comment: Comment, oldPath: string }} _ event specific vars
+   *
+   * @return  {{ subject: string, template: string, vars: object }}
+   */
+  generateOption(event, path, triggeredBy, { comment, oldPath }) {
+    // validate for all events
+    if (event == null || path == null || triggeredBy == null) {
+      throw new Error(`invalid vars supplied to GlobalNotificationMailService.generateOption for event ${event}`);
+    }
+
+    const template = nodePath.join(this.crowi.localeDir, `${this.defaultLang}/notifications/${event}.txt`);
+    let subject;
+    let vars = {
+      appTitle: this.crowi.appService.getAppTitle(),
+      path,
+      username: triggeredBy.username,
+    };
+
+    switch (event) {
+      case this.event.PAGE_CREATE:
+        subject = `#${event} - ${triggeredBy.username} created ${path}`;
+        break;
+
+      case this.event.PAGE_EDIT:
+        subject = `#${event} - ${triggeredBy.username} edited ${path}`;
+        break;
+
+      case this.event.PAGE_DELETE:
+        subject = `#${event} - ${triggeredBy.username} deleted ${path}`;
+        break;
+
+      case this.event.PAGE_MOVE:
+        // validate for page move
+        if (oldPath == null) {
+          throw new Error(`invalid vars supplied to GlobalNotificationMailService.generateOption for event ${event}`);
+        }
+
+        subject = `#${event} - ${triggeredBy.username} moved ${oldPath} to ${path}`;
+        vars = {
+          ...vars,
+          oldPath,
+          newPath: path,
+        };
+        break;
+
+      case this.event.PAGE_LIKE:
+        subject = `#${event} - ${triggeredBy.username} liked ${path}`;
+        break;
+
+      case this.event.COMMENT:
+        // validate for comment
+        if (comment == null) {
+          throw new Error(`invalid vars supplied to GlobalNotificationMailService.generateOption for event ${event}`);
+        }
+
+        subject = `#${event} - ${triggeredBy.username} commented on ${path}`;
+        vars = {
+          ...vars,
+          comment: comment.comment,
+        };
+        break;
+
+      default:
+        throw new Error(`unknown global notificaiton event: ${event}`);
+    }
+
+    return {
+      subject,
+      template,
+      vars,
+    };
+  }
+
 }
 
 module.exports = GlobalNotificationMailService;