feat(mobile): share to mechanism (#15229)

* setup ios

* chore: succesfully sent media to the app

* share from Android

* wip: navigate to share screen

* wip: UI for displaying upload candidate

* wip: logic

* wip: upload logic

* wip: up up up we got it up

* wip

* wip

* wip

* upload state

* feat: i18n

* fix: release build ios'

* feat: clear file cache

* pr feedback

* using const for checking download status

---------

Co-authored-by: Alex <alex@pop-os.localdomain>

mobile/lib/models/upload/share_intent_attachment.model.dart

@@ -0,0 +1,114 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:immich_mobile/utils/bytes_units.dart';
+import 'package:path/path.dart';
+
+enum ShareIntentAttachmentType {
+  image,
+  video,
+}
+
+enum UploadStatus {
+  enqueued,
+  running,
+  complete,
+  notFound,
+  failed,
+  canceled,
+  waitingtoRetry,
+  paused,
+}
+
+class ShareIntentAttachment {
+  final String path;
+
+  // enum
+  final ShareIntentAttachmentType type;
+
+  // enum
+  final UploadStatus status;
+
+  final double uploadProgress;
+
+  final int fileLength;
+
+  ShareIntentAttachment({
+    required this.path,
+    required this.type,
+    required this.status,
+    this.uploadProgress = 0,
+    this.fileLength = 0,
+  });
+
+  int get id => hash(path);
+
+  File get file => File(path);
+
+  String get fileName => basename(file.path);
+
+  bool get isImage => type == ShareIntentAttachmentType.image;
+
+  bool get isVideo => type == ShareIntentAttachmentType.video;
+
+  String? _fileSize;
+
+  String get fileSize => _fileSize ??= formatHumanReadableBytes(fileLength, 2);
+
+  ShareIntentAttachment copyWith({
+    String? path,
+    ShareIntentAttachmentType? type,
+    UploadStatus? status,
+    double? uploadProgress,
+  }) {
+    return ShareIntentAttachment(
+      path: path ?? this.path,
+      type: type ?? this.type,
+      status: status ?? this.status,
+      uploadProgress: uploadProgress ?? this.uploadProgress,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'path': path,
+      'type': type.index,
+      'status': status.index,
+      'uploadProgress': uploadProgress,
+    };
+  }
+
+  factory ShareIntentAttachment.fromMap(Map<String, dynamic> map) {
+    return ShareIntentAttachment(
+      path: map['path'] as String,
+      type: ShareIntentAttachmentType.values[map['type'] as int],
+      status: UploadStatus.values[map['status'] as int],
+      uploadProgress: map['uploadProgress'] as double,
+    );
+  }
+
+  String toJson() => json.encode(toMap());
+
+  factory ShareIntentAttachment.fromJson(String source) =>
+      ShareIntentAttachment.fromMap(
+        json.decode(source) as Map<String, dynamic>,
+      );
+
+  @override
+  String toString() {
+    return 'ShareIntentAttachment(path: $path, type: $type, status: $status, uploadProgress: $uploadProgress)';
+  }
+
+  @override
+  bool operator ==(covariant ShareIntentAttachment other) {
+    if (identical(this, other)) return true;
+
+    return other.path == path && other.type == type;
+  }
+
+  @override
+  int get hashCode {
+    return path.hashCode ^ type.hashCode;
+  }
+}