# Send to single device.
from pyfcm import FCMNotification

push_service = FCMNotification(service_account_file="<service-account-json-path>")

# OR initialize with proxies

proxy_dict = {
          "http"  : "http://127.0.0.1",
          "https" : "http://127.0.0.1",
        }
push_service = FCMNotification(service_account_file="<service-account-json-path>", proxy_dict=proxy_dict)

# Your service account file can be gotten from:  https://console.firebase.google.com/u/0/project/_/settings/serviceaccounts/adminsdk

fcm_token = "<fcm token>"
notification_title = "Uber update"
notification_body = "Hi John, your order is on the way!"
notification_image = "https://example.com/image.png"
result = push_service.notify(fcm_token=fcm_token, notification_title=notification_title, notification_body=notification_body, notification_image=notification_image)
print result

# With FCM, you can send two types of messages to clients:
# 1. Notification messages, sometimes thought of as "display messages."
# 2. Data messages, which are handled by the client app.
# 3. Notification messages with optional data payload.

# Client app is responsible for processing data messages. Data messages have only custom key-value pairs. (Python dict)
# Data messages let developers send up to 4KB of custom key-value pairs.

# Sending a notification with data message payload
data_payload = {
    "foo": "bar",
    "body": "great match!",
    "room": "PortugalVSDenmark"
}
# To a single device
result = push_service.notify(fcm_token=fcm_token, notification_body=notification_body, data_payload=data_payload)

# Sending a data message only payload, do NOT include notification_body also do NOT include notification body
# To a single device
result = push_service.notify(fcm_token=fcm_token, data_payload=data_payload)

# Use notification messages when you want FCM to handle displaying a notification on your app's behalf.
# Use data messages when you just want to process the messages only in your app.
# PyFCM can send a message including both notification and data payloads.
# In such cases, FCM handles displaying the notification payload, and the client app handles the data payload.

push_service = FCMNotification(api_key="<service-account-json-path>", proxy_dict=proxy_dict, env='app_engine')
result = push_service.notify(fcm_token=fcm_token, notification_body=message)

# Send a message to devices subscribed to a topic.
result = push_service.notify(topic_name="news", notification_body=message)

# Conditional topic messaging
topic_condition = "'TopicA' in topics && ('TopicB' in topics || 'TopicC' in topics)"
result = push_service.notify(notification_body=message, topic_condition=topic_condition)
# FCM first evaluates any conditions in parentheses, and then evaluates the expression from left to right.
# In the above expression, a user subscribed to any single topic does not receive the message. Likewise,
# a user who does not subscribe to TopicA does not receive the message. These combinations do receive it:
# TopicA and TopicB
# TopicA and TopicC
# Conditions for topics support two operators per expression, and parentheses are supported.
# For more information, check: https://firebase.google.com/docs/cloud-messaging/topic-messaging