import datetime
import os
from firebase_admin import messaging, exceptions

class FCM:
    logo_url = 'https://workouttest.com/wp-content/uploads/2020/10/WT_long_logo.png'

    # default constructor
    def __init__(self):
        # To learn more, visit the docs here:
        # https://cloud.google.com/docs/authentication/getting-started>
        pass

    def send_to_multiple_token(self, title, body, registration_token, image_url = None):
        try: 
            notification_image_url = image_url
            #if image_url == None:
            #    notification_image_url = self.logo_url

            message = messaging.MulticastMessage(
                notification=messaging.Notification(
                    title=title,
                    body=body,
                ),
                android=messaging.AndroidConfig(
                    ttl=datetime.timedelta(seconds=3600),
                    priority='normal',
                    notification=messaging.AndroidNotification(
                        image=notification_image_url,
                    ),
                ),
                apns=messaging.APNSConfig(
                    payload=messaging.APNSPayload(
                        aps=messaging.Aps(badge=1),
                    ),
                    fcm_options= messaging.APNSFCMOptions(
                        image=notification_image_url,
                    )
                ),
                tokens= registration_token,
            )
            response = messaging.send_multicast(message)
            # Response is a message ID string.
            print('Successfully sent message:', response);

        except exceptions.FirebaseError as error:
            print('Error sending message:', error);
        except ValueError as value_error:
            print('Error sending message:', value_error);


    def send_to_token(self, title, body, image_url = None, registration_token = None):
        if registration_token == None:
            return "Registration token is null"
        try: 
            notification_image_url = image_url
            if image_url == None:
                notification_image_url = self.logo_url
            #registration_token = 'cOqNt8rzo074gbIkBSpCgW:APA91bEBuNi3iVzGKb4JhxqN2j80MoJbNptLHk2qsdeKBQz5grpHtrPPXvDqn5BJVVSaj1nwGPwgN7pi6FIApog_TTP3g1yobgmgpPN6udrYgzILlVPMvdGGFDSDh6gKlczhlTL9NEp0'

            print(f'image: {notification_image_url}' )    

            message = messaging.Message(
                notification=messaging.Notification(
                    title=title,
                    body=body,
                ),
                android=messaging.AndroidConfig(
                    ttl=datetime.timedelta(seconds=3600),
                    priority='normal',
                    notification=messaging.AndroidNotification(
                        image=notification_image_url,
                    ),
                ),
                apns=messaging.APNSConfig(
                    payload=messaging.APNSPayload(
                        aps=messaging.Aps(badge=1),
                    ),
                    fcm_options= messaging.APNSFCMOptions(
                        image=notification_image_url,
                    )
                ),
                token= registration_token,
            )
            response = messaging.send(message)
            # Response is a message ID string.
            print('Successfully sent message:', response);
            rc = 'OK'

        except exceptions.FirebaseError as error:
            print('Error sending message:', error);
            rc = error
        except ValueError as value_error:
            print('Error sending message:', value_error);
            rc = value_error

        return rc    

    def get_message():
        pass