added cargo files

PinePods-0.8.2/mobile/lib/entities/transcript.dart

@@ -0,0 +1,213 @@
+// Copyright 2020 Ben Hills and the project contributors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:pinepods_mobile/core/extensions.dart';
+import 'package:flutter/foundation.dart';
+
+enum TranscriptFormat {
+  json,
+  subrip,
+  html,
+  unsupported,
+}
+
+/// This class represents a Podcasting 2.0 transcript URL.
+///
+/// [docs](https://github.com/Podcastindex-org/podcast-namespace/blob/main/docs/1.0.md#transcript)
+class TranscriptUrl {
+  final String url;
+  final TranscriptFormat type;
+  final String? language;
+  final String? rel;
+  final DateTime? lastUpdated;
+
+  TranscriptUrl({
+    required String url,
+    required this.type,
+    this.language = '',
+    this.rel = '',
+    this.lastUpdated,
+  }) : url = url.forceHttps;
+
+  Map<String, dynamic> toMap() {
+    var t = 0;
+
+    switch (type) {
+      case TranscriptFormat.subrip:
+        t = 0;
+        break;
+      case TranscriptFormat.json:
+        t = 1;
+        break;
+      case TranscriptFormat.html:
+        t = 2;
+        break;
+      case TranscriptFormat.unsupported:
+        t = 3;
+        break;
+    }
+
+    return <String, dynamic>{
+      'url': url,
+      'type': t,
+      'lang': language,
+      'rel': rel,
+      'lastUpdated': DateTime.now().millisecondsSinceEpoch,
+    };
+  }
+
+  static TranscriptUrl fromMap(Map<String, dynamic> transcript) {
+    var ts = transcript['type'] as int? ?? 2;
+    var t = TranscriptFormat.unsupported;
+
+    switch (ts) {
+      case 0:
+        t = TranscriptFormat.subrip;
+        break;
+      case 1:
+        t = TranscriptFormat.json;
+        break;
+      case 2:
+        t = TranscriptFormat.html;
+        break;
+      case 3:
+        t = TranscriptFormat.unsupported;
+        break;
+    }
+
+    return TranscriptUrl(
+      url: transcript['url'] as String,
+      language: transcript['lang'] as String?,
+      rel: transcript['rel'] as String?,
+      type: t,
+      lastUpdated: transcript['lastUpdated'] == null
+          ? DateTime.now()
+          : DateTime.fromMillisecondsSinceEpoch(transcript['lastUpdated'] as int),
+    );
+  }
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is TranscriptUrl &&
+          runtimeType == other.runtimeType &&
+          url == other.url &&
+          type == other.type &&
+          language == other.language &&
+          rel == other.rel;
+
+  @override
+  int get hashCode => url.hashCode ^ type.hashCode ^ language.hashCode ^ rel.hashCode;
+}
+
+/// This class represents a Podcasting 2.0 transcript container.
+/// [docs](https://github.com/Podcastindex-org/podcast-namespace/blob/main/docs/1.0.md#transcript)
+class Transcript {
+  int? id;
+  String? guid;
+  final List<Subtitle> subtitles;
+  DateTime? lastUpdated;
+  bool filtered;
+
+  Transcript({
+    this.id,
+    this.guid,
+    this.subtitles = const <Subtitle>[],
+    this.filtered = false,
+    this.lastUpdated,
+  });
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'guid': guid,
+      'subtitles': (subtitles).map((subtitle) => subtitle.toMap()).toList(growable: false),
+      'lastUpdated': DateTime.now().millisecondsSinceEpoch,
+    };
+  }
+
+  static Transcript fromMap(int? key, Map<String, dynamic> transcript) {
+    var subtitles = <Subtitle>[];
+
+    if (transcript['subtitles'] != null) {
+      for (var subtitle in (transcript['subtitles'] as List)) {
+        if (subtitle is Map<String, dynamic>) {
+          subtitles.add(Subtitle.fromMap(subtitle));
+        }
+      }
+    }
+
+    return Transcript(
+      id: key,
+      guid: transcript['guid'] as String? ?? '',
+      subtitles: subtitles,
+      lastUpdated: transcript['lastUpdated'] == null
+          ? DateTime.now()
+          : DateTime.fromMillisecondsSinceEpoch(transcript['lastUpdated'] as int),
+    );
+  }
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is Transcript &&
+          runtimeType == other.runtimeType &&
+          guid == other.guid &&
+          listEquals(subtitles, other.subtitles);
+
+  @override
+  int get hashCode => guid.hashCode ^ subtitles.hashCode;
+
+  bool get transcriptAvailable => (subtitles.isNotEmpty || filtered);
+}
+
+/// Represents an individual line within a transcript.
+class Subtitle {
+  final int index;
+  final Duration start;
+  Duration? end;
+  String? data;
+  String speaker;
+
+  Subtitle({
+    required this.index,
+    required this.start,
+    this.end,
+    this.data,
+    this.speaker = '',
+  });
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'i': index,
+      'start': start.inMilliseconds,
+      'end': end!.inMilliseconds,
+      'speaker': speaker,
+      'data': data,
+    };
+  }
+
+  static Subtitle fromMap(Map<String, dynamic> subtitle) {
+    return Subtitle(
+      index: subtitle['i'] as int? ?? 0,
+      start: Duration(milliseconds: subtitle['start'] as int? ?? 0),
+      end: Duration(milliseconds: subtitle['end'] as int? ?? 0),
+      speaker: subtitle['speaker'] as String? ?? '',
+      data: subtitle['data'] as String? ?? '',
+    );
+  }
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is Subtitle &&
+          runtimeType == other.runtimeType &&
+          index == other.index &&
+          start == other.start &&
+          end == other.end &&
+          data == other.data &&
+          speaker == other.speaker;
+
+  @override
+  int get hashCode => index.hashCode ^ start.hashCode ^ end.hashCode ^ data.hashCode ^ speaker.hashCode;
+}