import 'package:flutter/material.dart';

import '../../core/app_state.dart';
import '../../core/app_theme.dart';
import '../../widgets/app_widgets.dart';
import 'profile_widgets.dart';

/// 升级进度：A0 出口的三项条件。
class LevelProgressView extends StatelessWidget {
  const LevelProgressView({super.key, required this.state});
  final AppState state;

  @override
  Widget build(BuildContext context) => SpacedColumn(
    spacing: 16,
    children: [
      const Eyebrow('A0 → A1'),
      Text(
        state.a0Passed
            ? 'A0 已通过'
            : '已完成 ${(state.a0StageProgress * 100).round()}%',
        style: Theme.of(context).textTheme.headlineMedium,
      ),
      Text(
        state.a0Passed ? 'A1 主线内容尚未提供，可继续进行 A0 巩固。' : '进度来自掌握证据，不是上完固定课数就升级。',
      ),
      MenuGroup(
        children: [
          GoalProgressRow(
            icon: Icons.record_voice_over_outlined,
            title: '可使用',
            note: '核心内容已获得独立使用证据',
            value: state.coreUsableCount,
            goal: a0UsableGoal,
          ),
          GoalProgressRow(
            icon: Icons.verified_outlined,
            title: '已掌握（间隔复习）',
            note: '达到四次间隔复习要求',
            value: state.coreMasteredCount,
            goal: a0MasteredGoal,
          ),
          GoalProgressRow(
            icon: Icons.assignment_turned_in_outlined,
            title: '两套四技能评估',
            note: '两套不同题组都通过，间隔至少 24 小时',
            value: state.passedAssessmentPackCount,
            goal: 2,
          ),
        ],
      ),
      SectionCard(
        padding: EdgeInsets.zero,
        child: Theme(
          data: Theme.of(context).copyWith(dividerColor: Colors.transparent),
          child: ExpansionTile(
            tilePadding: const EdgeInsets.symmetric(horizontal: 14),
            childrenPadding: const EdgeInsets.fromLTRB(14, 0, 14, 14),
            expandedCrossAxisAlignment: CrossAxisAlignment.start,
            leading: Icon(Icons.info_outline, color: AppColors.muted),
            title: const Text('进入下一阶段的条件'),
            children: const [
              Text(
                '60 项固定核心内容中至少 $a0UsableGoal 项可使用、$a0MasteredGoal 项已掌握，且两套不同题组的听说读写评估都通过并间隔至少 24 小时。',
              ),
            ],
          ),
        ),
      ),
    ],
  );
}