refactor(mobile): services and providers (#9232)

* refactor(mobile): services and provider

* providers

mobile/lib/providers/gallery_permission.provider.dart

@@ -0,0 +1,111 @@
+import 'dart:io';
+
+import 'package:device_info_plus/device_info_plus.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:permission_handler/permission_handler.dart';
+
+class GalleryPermissionNotifier extends StateNotifier<PermissionStatus> {
+  GalleryPermissionNotifier()
+      : super(PermissionStatus.denied) // Denied is the intitial state
+  {
+    // Sets the initial state
+    getGalleryPermissionStatus();
+  }
+
+  get hasPermission => state.isGranted || state.isLimited;
+
+  /// Requests the gallery permission
+  Future<PermissionStatus> requestGalleryPermission() async {
+    PermissionStatus result;
+    // Android 32 and below uses Permission.storage
+    if (Platform.isAndroid) {
+      final androidInfo = await DeviceInfoPlugin().androidInfo;
+      if (androidInfo.version.sdkInt <= 32) {
+        // Android 32 and below need storage
+        final permission = await Permission.storage.request();
+        result = permission;
+      } else {
+        // Android 33 need photo & video
+        final photos = await Permission.photos.request();
+        if (!photos.isGranted) {
+          // Don't ask twice for the same permission
+          state = photos;
+          return photos;
+        }
+        final videos = await Permission.videos.request();
+
+        // Return the joint result of those two permissions
+        final PermissionStatus status;
+        if (photos.isGranted && videos.isGranted) {
+          status = PermissionStatus.granted;
+        } else if (photos.isDenied || videos.isDenied) {
+          status = PermissionStatus.denied;
+        } else if (photos.isPermanentlyDenied || videos.isPermanentlyDenied) {
+          status = PermissionStatus.permanentlyDenied;
+        } else {
+          status = PermissionStatus.denied;
+        }
+
+        result = status;
+      }
+      if (result == PermissionStatus.granted &&
+          androidInfo.version.sdkInt >= 29) {
+        result = await Permission.accessMediaLocation.request();
+      }
+    } else {
+      // iOS can use photos
+      final photos = await Permission.photos.request();
+      result = photos;
+    }
+    state = result;
+    return result;
+  }
+
+  /// Checks the current state of the gallery permissions without
+  /// requesting them again
+  Future<PermissionStatus> getGalleryPermissionStatus() async {
+    PermissionStatus result;
+    // Android 32 and below uses Permission.storage
+    if (Platform.isAndroid) {
+      final androidInfo = await DeviceInfoPlugin().androidInfo;
+      if (androidInfo.version.sdkInt <= 32) {
+        // Android 32 and below need storage
+        final permission = await Permission.storage.status;
+        result = permission;
+      } else {
+        // Android 33 needs photo & video
+        final photos = await Permission.photos.status;
+        final videos = await Permission.videos.status;
+
+        // Return the joint result of those two permissions
+        final PermissionStatus status;
+        if (photos.isGranted && videos.isGranted) {
+          status = PermissionStatus.granted;
+        } else if (photos.isDenied || videos.isDenied) {
+          status = PermissionStatus.denied;
+        } else if (photos.isPermanentlyDenied || videos.isPermanentlyDenied) {
+          status = PermissionStatus.permanentlyDenied;
+        } else {
+          status = PermissionStatus.denied;
+        }
+
+        result = status;
+      }
+      if (state == PermissionStatus.granted &&
+          androidInfo.version.sdkInt >= 29) {
+        result = await Permission.accessMediaLocation.status;
+      }
+    } else {
+      // iOS can use photos
+      final photos = await Permission.photos.status;
+      result = photos;
+    }
+    state = result;
+    return result;
+  }
+}
+
+final galleryPermissionNotifier =
+    StateNotifierProvider<GalleryPermissionNotifier, PermissionStatus>(
+  (ref) => GalleryPermissionNotifier(),
+);