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

* refactor(mobile): services and provider

* providers

mobile/lib/services/share.service.dart

@@ -0,0 +1,77 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/extensions/response_extensions.dart';
+import 'package:immich_mobile/entities/asset.entity.dart';
+import 'package:immich_mobile/providers/api.provider.dart';
+import 'package:logging/logging.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:share_plus/share_plus.dart';
+import 'api.service.dart';
+
+final shareServiceProvider =
+    Provider((ref) => ShareService(ref.watch(apiServiceProvider)));
+
+class ShareService {
+  final ApiService _apiService;
+  final Logger _log = Logger("ShareService");
+
+  ShareService(this._apiService);
+
+  Future<bool> shareAsset(Asset asset) async {
+    return await shareAssets([asset]);
+  }
+
+  Future<bool> shareAssets(List<Asset> assets) async {
+    try {
+      final downloadedXFiles = <XFile>[];
+
+      for (var asset in assets) {
+        if (asset.isLocal) {
+          // Prefer local assets to share
+          File? f = await asset.local!.file;
+          downloadedXFiles.add(XFile(f!.path));
+        } else if (asset.isRemote) {
+          // Download remote asset otherwise
+          final tempDir = await getTemporaryDirectory();
+          final fileName = asset.fileName;
+          final tempFile = await File('${tempDir.path}/$fileName').create();
+          final res = await _apiService.downloadApi
+              .downloadFileWithHttpInfo(asset.remoteId!);
+
+          if (res.statusCode != 200) {
+            _log.severe(
+              "Asset download for ${asset.fileName} failed",
+              res.toLoggerString(),
+            );
+            continue;
+          }
+
+          tempFile.writeAsBytesSync(res.bodyBytes);
+          downloadedXFiles.add(XFile(tempFile.path));
+        }
+      }
+
+      if (downloadedXFiles.isEmpty) {
+        _log.warning("No asset can be retrieved for share");
+        return false;
+      }
+
+      if (downloadedXFiles.length != assets.length) {
+        _log.warning(
+          "Partial share - Requested: ${assets.length}, Sharing: ${downloadedXFiles.length}",
+        );
+      }
+
+      Share.shareXFiles(
+        downloadedXFiles,
+        sharePositionOrigin: Rect.zero,
+      );
+      return true;
+    } catch (error) {
+      _log.severe("Share failed", error);
+    }
+    return false;
+  }
+}