import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../core/api/api_client.dart';

/// 更新日志条目（GET /public/release 的 changelog 数组，源自 version.yaml，
/// 与官网下载页时间线同源）。
class ChangelogEntry {
  final String version;
  final String date;
  final String intro;
  final List<({String type, List<String> items})> sections;

  const ChangelogEntry({
    required this.version,
    required this.date,
    this.intro = '',
    this.sections = const [],
  });

  factory ChangelogEntry.fromJson(Map<String, dynamic> json) => ChangelogEntry(
        version: json['version'] as String? ?? '',
        date: json['date'] as String? ?? '',
        intro: json['intro'] as String? ?? '',
        sections: [
          for (final s in (json['sections'] as List? ?? const []))
            if (s is Map)
              (
                type: s['type'] as String? ?? '',
                items: [
                  for (final it in (s['items'] as List? ?? const [])) '$it',
                ],
              ),
        ],
      );
}

/// 关于页更新日志（接口不可达时返回空列表，页面回退只显当前版本）。
final changelogProvider = FutureProvider<List<ChangelogEntry>>((ref) async {
  try {
    final resp = await ref.watch(apiClientProvider).get('/public/release');
    final data = resp.data as Map<String, dynamic>;
    return [
      for (final e in (data['changelog'] as List? ?? const []))
        ChangelogEntry.fromJson(e as Map<String, dynamic>),
    ];
  } catch (_) {
    return const [];
  }
});