Add fcm push notifications

src/app/push.ts

@@ -1,8 +1,28 @@
+import * as nip19 from "nostr-tools/nip19"
 import {Capacitor} from "@capacitor/core"
+import type {ActionPerformed, RegistrationError, Token} from "@capacitor/push-notifications"
+import {PushNotifications} from "@capacitor/push-notifications"
+import {sleep, parseJson} from "@welshman/lib"
+import {isSignedEvent} from "@welshman/util"
+import {goto} from "$app/navigation"
 import {VAPID_PUBLIC_KEY} from "@app/state"
 
 export const platform = Capacitor.getPlatform()
 
+export const initializePushNotifications = () => {
+  if (platform === "web") return
+
+  PushNotifications.addListener("pushNotificationActionPerformed", (action: ActionPerformed) => {
+    const event = parseJson(action.notification.data.event)
+    const parsedRelays = parseJson(action.notification.data.relays)
+    const relays = Array.isArray(parsedRelays) ? parsedRelays : []
+
+    if (isSignedEvent(event)) {
+      goto("/" + nip19.neventEncode({id: event.id, relays}))
+    }
+  })
+}
+
 export const canSendPushNotifications = () => ["web", "android", "ios"].includes(platform)
 
 export const getWebPushInfo = async () => {
@@ -36,7 +56,7 @@ export const getWebPushInfo = async () => {
     })
   }
 
-  const {endpoint, keys} = subscription.toJSON()
+  const {keys} = subscription.toJSON()
 
   if (!keys) {
     throw new Error(`Failed to get push info: no keys were returned`)
@@ -49,12 +69,36 @@ export const getWebPushInfo = async () => {
   }
 }
 
-export const getIosPushInfo = async () => {
-  return {}
-}
+export const getCapacitorPushInfo = async () => {
+  let status = await PushNotifications.checkPermissions()
 
-export const getAndroidPushInfo = async () => {
-  return {}
+  if (status.receive === "prompt") {
+    status = await PushNotifications.requestPermissions()
+  }
+
+  if (status.receive !== "granted") {
+    throw new Error("Failed to register for push notifications")
+  }
+
+  let device_token = ""
+  let error = "Failed to register for push notifications"
+
+  PushNotifications.addListener("registration", (token: Token) => {
+    device_token = token.value
+  })
+
+  PushNotifications.addListener("registrationError", (_error: RegistrationError) => {
+    error = _error.error
+  })
+
+  await PushNotifications.register()
+  await sleep(100)
+
+  if (!device_token) {
+    throw new Error(error)
+  }
+
+  return {device_token}
 }
 
 export const getPushInfo = (): Promise<Record<string, string>> => {
@@ -62,9 +106,8 @@ export const getPushInfo = (): Promise<Record<string, string>> => {
     case "web":
       return getWebPushInfo()
     case "ios":
-      return getIosPushInfo()
     case "android":
-      return getAndroidPushInfo()
+      return getCapacitorPushInfo()
     default:
       throw new Error(`Invalid push platform: ${platform}`)
   }