118 - Implement shared album feature (#124)

* New features 
  - Share album. Users can now create albums to share with existing people on the network.
  - Owner can delete the album.
  - Owner can invite the additional users to the album.
  - Shared users and the owner can add additional assets to the album.
* In the asset viewer, the user can swipe up to see detailed information and swip down to dismiss.
* Several UI enhancements.

mobile/lib/modules/sharing/services/shared_album.service.dart

@@ -0,0 +1,141 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+import 'package:flutter/foundation.dart';
+import 'package:immich_mobile/modules/sharing/models/shared_album.model.dart';
+import 'package:immich_mobile/shared/models/immich_asset.model.dart';
+import 'package:immich_mobile/shared/services/network.service.dart';
+
+class SharedAlbumService {
+  final NetworkService _networkService = NetworkService();
+
+  Future<List<SharedAlbum>> getAllSharedAlbum() async {
+    try {
+      var res = await _networkService.getRequest(url: 'shared/allSharedAlbums');
+      List<dynamic> decodedData = jsonDecode(res.toString());
+      List<SharedAlbum> result = List.from(decodedData.map((e) => SharedAlbum.fromMap(e)));
+
+      return result;
+    } catch (e) {
+      debugPrint("Error getAllSharedAlbum  ${e.toString()}");
+    }
+
+    return [];
+  }
+
+  Future<bool> createSharedAlbum(String albumName, Set<ImmichAsset> assets, List<String> sharedUserIds) async {
+    try {
+      var res = await _networkService.postRequest(url: 'shared/createAlbum', data: {
+        "albumName": albumName,
+        "sharedWithUserIds": sharedUserIds,
+        "assetIds": assets.map((asset) => asset.id).toList(),
+      });
+
+      if (res == null) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error createSharedAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+
+  Future<SharedAlbum> getAlbumDetail(String albumId) async {
+    try {
+      var res = await _networkService.getRequest(url: 'shared/$albumId');
+      dynamic decodedData = jsonDecode(res.toString());
+      SharedAlbum result = SharedAlbum.fromMap(decodedData);
+
+      return result;
+    } catch (e) {
+      throw Exception('Error getAllSharedAlbum  ${e.toString()}');
+    }
+  }
+
+  Future<bool> addAdditionalAssetToAlbum(Set<ImmichAsset> assets, String albumId) async {
+    try {
+      var res = await _networkService.postRequest(url: 'shared/addAssets', data: {
+        "albumId": albumId,
+        "assetIds": assets.map((asset) => asset.id).toList(),
+      });
+
+      if (res == null) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error addAdditionalAssetToAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+
+  Future<bool> addAdditionalUserToAlbum(List<String> sharedUserIds, String albumId) async {
+    try {
+      var res = await _networkService.postRequest(url: 'shared/addUsers', data: {
+        "albumId": albumId,
+        "sharedUserIds": sharedUserIds,
+      });
+
+      if (res == null) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error addAdditionalUserToAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+
+  Future<bool> deleteAlbum(String albumId) async {
+    try {
+      Response res = await _networkService.deleteRequest(url: 'shared/$albumId');
+
+      if (res.statusCode != 200) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error deleteAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+
+  Future<bool> leaveAlbum(String albumId) async {
+    try {
+      Response res = await _networkService.deleteRequest(url: 'shared/leaveAlbum/$albumId');
+
+      if (res.statusCode != 200) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error deleteAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+
+  Future<bool> removeAssetFromAlbum(String albumId, List<String> assetIds) async {
+    try {
+      Response res = await _networkService.deleteRequest(url: 'shared/removeAssets/', data: {
+        "albumId": albumId,
+        "assetIds": assetIds,
+      });
+
+      if (res.statusCode != 200) {
+        return false;
+      }
+
+      return true;
+    } catch (e) {
+      debugPrint("Error deleteAlbum  ${e.toString()}");
+      return false;
+    }
+  }
+}