feat(notifications): add pushover integration (#574)

* feat(notifications): add pushover integration

* refactor(pushover): group i18n translations

server/lib/notifications/agents/pushover.ts

@@ -0,0 +1,122 @@
+import axios from 'axios';
+import { hasNotificationType, Notification } from '..';
+import logger from '../../../logger';
+import { getSettings, NotificationAgentPushover } from '../../settings';
+import { BaseAgent, NotificationAgent, NotificationPayload } from './agent';
+
+interface PushoverPayload {
+  token: string;
+  user: string;
+  title: string;
+  message: string;
+  html: number;
+}
+
+class PushoverAgent
+  extends BaseAgent<NotificationAgentPushover>
+  implements NotificationAgent {
+  protected getSettings(): NotificationAgentPushover {
+    if (this.settings) {
+      return this.settings;
+    }
+
+    const settings = getSettings();
+
+    return settings.notifications.agents.pushover;
+  }
+
+  public shouldSend(type: Notification): boolean {
+    if (
+      this.getSettings().enabled &&
+      this.getSettings().options.accessToken &&
+      this.getSettings().options.userToken &&
+      hasNotificationType(type, this.getSettings().types)
+    ) {
+      return true;
+    }
+
+    return false;
+  }
+
+  private constructMessageDetails(
+    type: Notification,
+    payload: NotificationPayload
+  ): { title: string; message: string } {
+    const settings = getSettings();
+    let messageTitle = '';
+    let message = '';
+
+    const title = payload.subject;
+    const plot = payload.message;
+    const user = payload.notifyUser.username;
+
+    switch (type) {
+      case Notification.MEDIA_PENDING:
+        messageTitle = 'New Request';
+        message += `${title}\n\n`;
+        message += `${plot}\n\n`;
+        message += `<b>Requested By</b>\n${user}\n\n`;
+        message += `<b>Status</b>\nPending Approval\n`;
+        break;
+      case Notification.MEDIA_APPROVED:
+        messageTitle = 'Request Approved';
+        message += `${title}\n\n`;
+        message += `${plot}\n\n`;
+        message += `<b>Requested By</b>\n${user}\n\n`;
+        message += `<b>Status</b>\nProcessing Request\n`;
+        break;
+      case Notification.MEDIA_AVAILABLE:
+        messageTitle = 'Now available!';
+        message += `${title}\n\n`;
+        message += `${plot}\n\n`;
+        message += `<b>Requested By</b>\n${user}\n\n`;
+        message += `<b>Status</b>\nAvailable\n`;
+        break;
+      case Notification.TEST_NOTIFICATION:
+        messageTitle = 'Test Notification';
+        message += `${title}\n\n`;
+        message += `${plot}\n\n`;
+        message += `<b>Requested By</b>\n${user}\n`;
+        break;
+    }
+
+    if (settings.main.applicationUrl && payload.media) {
+      const actionUrl = `${settings.main.applicationUrl}/${payload.media.mediaType}/${payload.media.tmdbId}`;
+      message += `<a href="${actionUrl}">Open in Overseerr</a>`;
+    }
+
+    return { title: messageTitle, message };
+  }
+
+  public async send(
+    type: Notification,
+    payload: NotificationPayload
+  ): Promise<boolean> {
+    logger.debug('Sending Pushover notification', { label: 'Notifications' });
+    try {
+      const endpoint = 'https://api.pushover.net/1/messages.json';
+
+      const { accessToken, userToken } = this.getSettings().options;
+
+      const { title, message } = this.constructMessageDetails(type, payload);
+
+      await axios.post(endpoint, {
+        token: accessToken,
+        user: userToken,
+        title: title,
+        message: message,
+        html: 1,
+      } as PushoverPayload);
+
+      return true;
+    } catch (e) {
+      logger.error('Error sending Pushover notification', {
+        label: 'Notifications',
+        message: e.message,
+      });
+      return false;
+    }
+  }
+}
+
+export default PushoverAgent;