import { getUserDefaultBool, setUserDefaultBool } from "./settings";

/**
 * Get the person's permission to send notification requests.
 */
export function getNotificationRequestPermission() {
  if ("Notification" in window) {
    Notification.requestPermission();
    let request = Notification.permission;
    if (request === "granted") {
      setUserDefaultBool("enablePushNotifications", true);
      setUserDefaultBool("userDeniedNotification", false);
    } else {
      setUserDefaultBool("enablePushNotifications", false);
      setUserDefaultBool("userDeniedNotification", true);
    }
  } else {
    console.warn(
      "Notifications aren't supported in this browser. The setting will be disabled."
    );
    setUserDefaultBool("enablePushNotifications", false);
  }
}

/**
 * Get the browser's notification support
 * @returns Boolean value that determines whether the browser supports the Notification API
 */
export function browserSupportsNotificationRequests(): boolean {
  return "Notification" in window;
}

/**
 * Get the user default for sending push notifications
 * @returns Boolean value of `enablePushNotifications`
 */
export function canSendNotifications() {
  return getUserDefaultBool("enablePushNotifications");
}

/**
 * Sends a push notification based on user preference
 * @param title The primary title of the push notification
 * @param body The contents of the push notification
 */
export function sendNotificationRequest(title: string, body: string) {
  if (canSendNotifications()) {
    let notif = new Notification(title, {
      body: body
    });

    notif.onclick = () => {
      window.focus();
    };
  } else {
    console.warn("The person has opted to not receive push notifications.");
  }
}