jingyun
324 lines
9.1 KiB
Dart
324 lines
9.1 KiB
Dart
typedef JsonMap = Map<String, dynamic>;
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String asString(Object? value, [String fallback = '']) =>
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value == null ? fallback : value.toString();
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int asInt(Object? value, [int fallback = 0]) {
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if (value is int) return value;
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if (value is num) return value.round();
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return int.tryParse(asString(value)) ?? fallback;
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}
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bool asBool(Object? value) => value == true;
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List<String> asStringList(Object? value) {
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if (value is List) return value.map((item) => item.toString()).toList();
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return const [];
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}
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JsonMap asMap(Object? value) {
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if (value is Map<String, dynamic>) return value;
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if (value is Map) {
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return value.map((key, val) => MapEntry(key.toString(), val));
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}
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return const {};
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}
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List<JsonMap> asMapList(Object? value) {
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if (value is List) {
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return value.map(asMap).where((item) => item.isNotEmpty).toList();
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}
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return const [];
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}
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String formatDate(String? iso) {
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if (iso == null || iso.isEmpty) return '';
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final parsed = DateTime.tryParse(iso);
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if (parsed == null) return iso;
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return '${parsed.year}年${parsed.month}月${parsed.day}日';
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}
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String formatDuration(int seconds) {
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final safe = seconds < 0 ? 0 : seconds;
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final minutes = safe ~/ 60;
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final secs = safe % 60;
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return '$minutes:${secs.toString().padLeft(2, '0')}';
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}
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class Institution {
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const Institution({
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required this.id,
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required this.nameCn,
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this.nameEn = '',
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this.logoUrl = '',
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this.institutionType = '',
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this.sourceTier = '',
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this.websiteUrl = '',
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this.coveredTopics = const [],
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this.reportCount = 0,
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this.latestReportAt,
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this.credibilityNote = '',
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this.introCn = '',
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this.recentReports = const [],
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});
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final String id;
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final String nameCn;
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final String nameEn;
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final String logoUrl;
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final String institutionType;
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final String sourceTier;
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final String websiteUrl;
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final List<String> coveredTopics;
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final int reportCount;
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final String? latestReportAt;
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final String credibilityNote;
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final String introCn;
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final List<ReportCardModel> recentReports;
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factory Institution.fromJson(JsonMap json) {
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return Institution(
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id: asString(json['institution_id']),
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nameCn: asString(json['name_cn']),
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nameEn: asString(json['name_en']),
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logoUrl: asString(json['logo_url']),
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institutionType: asString(json['institution_type']),
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sourceTier: asString(json['source_tier']),
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websiteUrl: asString(json['website_url']),
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coveredTopics: asStringList(json['covered_topics']),
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reportCount: asInt(json['report_count']),
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latestReportAt: json['latest_report_at']?.toString(),
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credibilityNote: asString(json['credibility_note']),
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introCn: asString(json['intro_cn']),
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recentReports: asMapList(
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json['recent_reports'],
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).map(ReportCardModel.fromJson).toList(),
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);
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}
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}
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class ReportCardModel {
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const ReportCardModel({
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required this.id,
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required this.titleCn,
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required this.institution,
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this.subtitleCn = '',
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this.oneLiner = '',
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this.topics = const [],
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this.releasedAt,
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this.hasAudio = false,
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this.interpretationLabel = '研报解读',
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this.sourceTier = '',
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this.cacheVersion = '',
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});
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final String id;
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final String titleCn;
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final String subtitleCn;
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final String oneLiner;
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final Institution institution;
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final List<String> topics;
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final String? releasedAt;
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final bool hasAudio;
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final String interpretationLabel;
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final String sourceTier;
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final String cacheVersion;
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factory ReportCardModel.fromJson(JsonMap json) {
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final institution = Institution.fromJson(asMap(json['institution']));
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return ReportCardModel(
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id: asString(json['report_id']),
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titleCn: asString(json['title_cn']),
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subtitleCn: asString(json['subtitle_cn']),
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oneLiner: asString(json['one_liner']),
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institution: institution,
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topics: asStringList(json['topics']),
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releasedAt: json['released_at']?.toString(),
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hasAudio: asBool(json['has_audio']),
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interpretationLabel: asString(json['interpretation_label'], '研报解读'),
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sourceTier: asString(json['source_tier']),
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cacheVersion: asString(json['cache_version']),
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);
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}
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}
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class AudioItem {
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const AudioItem({
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required this.audioId,
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required this.reportId,
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required this.titleCn,
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required this.reportTitleCn,
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required this.durationSec,
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required this.institution,
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this.releasedAt,
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this.cacheVersion = '',
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});
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final String audioId;
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final String reportId;
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final String titleCn;
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final String reportTitleCn;
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final int durationSec;
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final Institution institution;
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final String? releasedAt;
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final String cacheVersion;
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factory AudioItem.fromJson(JsonMap json) {
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return AudioItem(
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audioId: asString(json['audio_id']),
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reportId: asString(json['report_id']),
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titleCn: asString(json['title_cn']),
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reportTitleCn: asString(
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json['report_title_cn'],
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asString(json['title_cn']),
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),
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durationSec: asInt(json['duration_sec']),
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institution: Institution.fromJson(asMap(json['institution'])),
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releasedAt: json['released_at']?.toString(),
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cacheVersion: asString(json['cache_version']),
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);
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}
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}
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class DisplayModule {
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const DisplayModule({
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required this.id,
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required this.type,
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required this.titleCn,
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required this.renderMode,
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this.layer = '',
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this.hasDetailPage = false,
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this.sortOrder = 0,
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this.content = const {},
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this.preview = const {},
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this.contentRef = '',
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this.contentEtag = '',
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});
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final String id;
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final String type;
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final String titleCn;
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final String layer;
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final String renderMode;
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final bool hasDetailPage;
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final int sortOrder;
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final JsonMap content;
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final JsonMap preview;
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final String contentRef;
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final String contentEtag;
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factory DisplayModule.fromJson(JsonMap json) {
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return DisplayModule(
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id: asString(json['module_id']),
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type: asString(json['type']),
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titleCn: asString(json['title_cn'], asString(json['type'])),
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layer: asString(json['layer']),
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renderMode: asString(json['render_mode'], 'inline'),
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hasDetailPage: asBool(json['has_detail_page']),
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sortOrder: asInt(json['sort_order']),
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content: asMap(json['content']),
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preview: asMap(json['preview']),
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contentRef: asString(json['content_ref']),
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contentEtag: asString(json['content_etag']),
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);
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}
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}
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class ReportDetail {
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const ReportDetail({
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required this.id,
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required this.titleCn,
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required this.institution,
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this.subtitleCn = '',
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this.originalTitle = '',
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this.oneLiner = '',
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this.source = const {},
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this.topics = const [],
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this.hasAudio = false,
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this.interpretationLabel = '研报解读',
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this.riskDisclaimer = '',
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this.releasedAt,
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this.cacheVersion = '',
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this.modules = const [],
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});
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final String id;
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final String titleCn;
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final String subtitleCn;
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final String originalTitle;
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final String oneLiner;
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final Institution institution;
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final JsonMap source;
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final List<String> topics;
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final bool hasAudio;
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final String interpretationLabel;
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final String riskDisclaimer;
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final String? releasedAt;
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final String cacheVersion;
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final List<DisplayModule> modules;
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factory ReportDetail.fromJson(JsonMap json) {
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return ReportDetail(
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id: asString(json['report_id']),
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titleCn: asString(json['title_cn']),
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subtitleCn: asString(json['subtitle_cn']),
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originalTitle: asString(json['original_title']),
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oneLiner: asString(json['one_liner']),
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institution: Institution.fromJson(asMap(json['institution'])),
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source: asMap(json['source']),
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topics: asStringList(json['topics']),
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hasAudio: asBool(json['has_audio']),
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interpretationLabel: asString(json['interpretation_label'], '研报解读'),
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riskDisclaimer: asString(json['risk_disclaimer']),
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releasedAt: json['released_at']?.toString(),
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cacheVersion: asString(json['cache_version']),
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modules: asMapList(json['modules']).map(DisplayModule.fromJson).toList(),
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);
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}
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ReportCardModel asCard() {
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return ReportCardModel(
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id: id,
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titleCn: titleCn,
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subtitleCn: subtitleCn,
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oneLiner: oneLiner,
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institution: institution,
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topics: topics,
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releasedAt: releasedAt,
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hasAudio: hasAudio,
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interpretationLabel: interpretationLabel,
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sourceTier: asString(source['source_tier']),
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cacheVersion: cacheVersion,
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);
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}
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}
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class ModuleDetail {
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const ModuleDetail({
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required this.id,
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required this.type,
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required this.titleCn,
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this.content = const {},
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this.contentEtag = '',
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this.cacheVersion = '',
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});
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final String id;
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final String type;
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final String titleCn;
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final JsonMap content;
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final String contentEtag;
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final String cacheVersion;
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factory ModuleDetail.fromJson(JsonMap json) {
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return ModuleDetail(
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id: asString(json['module_id']),
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type: asString(json['type']),
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titleCn: asString(json['title_cn'], asString(json['type'])),
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content: asMap(json['content']),
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contentEtag: asString(json['content_etag']),
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cacheVersion: asString(json['cache_version']),
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);
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}
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}
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