feat(android)!: throw exception on authorize when setup is incorrect

BREAKING CHANGE: If Google cloud console credential setup is incorrect
throw exception when authorize method is run.

android/src/main/java/com/fitnesstracker/googlefit/GoogleFitManager.kt

@@ -6,7 +6,10 @@ import com.facebook.react.bridge.*
 import com.fitnesstracker.permission.Permission
 import com.fitnesstracker.permission.PermissionKind
 import com.google.android.gms.auth.api.signin.GoogleSignIn
+import com.google.android.gms.auth.api.signin.GoogleSignInAccount
+import com.google.android.gms.common.api.ApiException
 import com.google.android.gms.fitness.data.DataType
+import com.google.android.gms.tasks.Task
 
 
 class GoogleFitManager(private val reactContext: ReactApplicationContext) : ActivityEventListener {
@@ -35,15 +38,33 @@ class GoogleFitManager(private val reactContext: ReactApplicationContext) : Acti
         data: Intent?
     ) {
         if (requestCode == GOOGLE_FIT_PERMISSIONS_REQUEST_CODE) {
-            if (resultCode == Activity.RESULT_OK) {
-                authorized = true
-
-                /** Subscribes to tracking steps even if google fit is not installed */
-                if (shouldSubscribeToSteps) recordingApi.subscribe(DataType.TYPE_STEP_COUNT_DELTA)
+            try {
+                /* Checks if correctly setup Google cloud console credentials */
+                val task: Task<GoogleSignInAccount> =
+                    GoogleSignIn.getSignedInAccountFromIntent(data)
+                task.getResult(ApiException::class.java)
+
+                if (resultCode == Activity.RESULT_OK) {
+                    handleSuccessfulLogin()
+                    return
+                }
 
-                authorisationPromise?.resolve(true)
-            } else {
                 authorisationPromise?.resolve(false)
+            } catch (e: ApiException) {
+                val code = e.statusCode
+                val errorCodeMessage = "ErrorCode: $code; "
+                println(errorCodeMessage)
+                if (e.statusCode == 10 || e.statusCode == 12500) {
+                    authorisationPromise?.reject(
+                        E_DEVELOPER_ERROR,
+                        errorCodeMessage + E_DEVELOPER_ERROR_MESSAGE
+                    )
+                } else {
+                    authorisationPromise?.reject(
+                        E_UNKNOWN_ERROR,
+                        errorCodeMessage + E_UNKNOWN_ERROR_MESSAGE
+                    )
+                }
             }
         }
     }
@@ -98,12 +119,26 @@ class GoogleFitManager(private val reactContext: ReactApplicationContext) : Acti
         return activityHistory
     }
 
+    private fun handleSuccessfulLogin() {
+        authorized = true
+
+        /* Subscribes to tracking steps even if google fit is not installed */
+        if (shouldSubscribeToSteps) recordingApi.subscribe(DataType.TYPE_STEP_COUNT_DELTA)
+
+        authorisationPromise?.resolve(true)
+    }
+
     private fun promiseException(promise: Promise?, e: Exception) {
         promise!!.reject(e)
         e.printStackTrace()
     }
 
     companion object {
+        private const val E_DEVELOPER_ERROR = "E_DEVELOPER_ERROR"
+        private const val E_DEVELOPER_ERROR_MESSAGE =
+            "Developer error, please check if you correctly setup SHA1 and Package Name in the Google API console"
+        private const val E_UNKNOWN_ERROR = "E_UNKNOWN_ERROR"
+        private const val E_UNKNOWN_ERROR_MESSAGE = "Undefined error occurred."
         private const val GOOGLE_FIT_PERMISSIONS_REQUEST_CODE = 111
     }
 }