100 lines
3.0 KiB
Dart
100 lines
3.0 KiB
Dart
import '../models/post.dart';
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class GelbooruMapper {
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static List<Post> postsFromResponse(
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dynamic data, {
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required String providerId,
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required String providerName,
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}) {
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final items = _extractItems(data);
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return items
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.whereType<Map>()
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.map((item) => postFromJson(
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Map<String, dynamic>.from(item),
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providerId: providerId,
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providerName: providerName,
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))
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.toList();
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}
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static Post postFromJson(
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Map<String, dynamic> json, {
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required String providerId,
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required String providerName,
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}) {
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final id = _string(json['id']);
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final fileUrl = _string(json['file_url'] ?? json['fileUrl']);
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final sampleUrl = _string(json['sample_url'] ??
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json['sampleUrl'] ??
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json['large_file_url'] ??
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fileUrl);
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final previewUrl =
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_string(json['preview_url'] ?? json['previewUrl'] ?? sampleUrl);
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return Post(
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id: id,
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providerId: providerId,
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providerName: providerName,
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previewUrl: previewUrl,
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sampleUrl: sampleUrl,
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fileUrl: fileUrl,
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tags: _tags(json['tags'] ?? json['tag_string']),
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rating: _string(json['rating'], fallback: 'unknown'),
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width: _int(json['width']),
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height: _int(json['height']),
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source: _nullableString(json['source']),
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createdAt: _date(json['created_at'] ?? json['createdAt']),
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fileType: _fileType(fileUrl),
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score: _int(json['score']),
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);
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}
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static List<dynamic> _extractItems(dynamic data) {
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if (data is List) return data;
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if (data is Map) {
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final posts = data['post'] ?? data['posts'];
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if (posts is List) return posts;
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if (posts is Map && posts['post'] is List) return posts['post'] as List;
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if (posts is Map) return [posts];
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}
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return const [];
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}
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static List<String> _tags(dynamic value) {
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if (value is List) return value.map((tag) => tag.toString()).toList();
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return _string(value)
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.split(RegExp(r'\s+'))
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.where((tag) => tag.trim().isNotEmpty)
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.toSet()
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.toList();
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}
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static int _int(dynamic value) {
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if (value is int) return value;
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if (value is num) return value.toInt();
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return int.tryParse(value?.toString() ?? '') ?? 0;
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}
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static String _string(dynamic value, {String fallback = ''}) {
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final text = value?.toString();
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return text == null || text.isEmpty ? fallback : text;
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}
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static String? _nullableString(dynamic value) {
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final text = value?.toString();
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return text == null || text.isEmpty ? null : text;
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}
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static DateTime _date(dynamic value) {
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if (value is int) return DateTime.fromMillisecondsSinceEpoch(value * 1000);
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return DateTime.tryParse(value?.toString() ?? '') ?? DateTime.now();
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}
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static String _fileType(String url) {
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final lower = url.toLowerCase();
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if (lower.endsWith('.webm') || lower.endsWith('.mp4')) return 'video';
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if (lower.endsWith('.gif')) return 'gif';
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if (lower.isEmpty) return 'unknown';
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return 'image';
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}
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}
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