ASA Go: Triggered Advisory Notifications

[conbrad]

Describe the task
ASA Go users should get notifications of new advisory and warnings in their subscribed fire zones.

Acceptance Criteria

• A user receives a PUSH Notification ONLY when Forecast advisory/warning conditions are met at 8AM for TODAY and it is for a zone within one of their subscribed fire zones
• A user can subscribe to any number of Zone Units within a fire centre, by default all fire zones in their selected fire centre (?)
• A user receives a notification only when new data is available + network available + user is online
• A user can receive a second notification within a day only when conditions change for the worst: from NO to Warning; From Warning to Advisory; Advisory downgrade; Warning Downgrade [ PO/Eric to advise ]

Additional context

• Investigate if we can reliably use Firebase for BOTH Android and iOS push notifications: https://chat.developer.gov.bc.ca/channel/devops-mobile-development/thread/xh9sFcCJeMcPbazp9
• ASA Go: Heads Up Notifications #4769
• Firebase Spike ASA Go: Push Notifications #2848