import 'package:flutter/material.dart';

import 'package:askiineverdie/src/core/model/game_statistics.dart';

/// 게임 통계 다이얼로그 (Statistics Dialog)
///
/// 세션 통계와 누적 통계를 탭으로 표시
class StatisticsDialog extends StatefulWidget {
  const StatisticsDialog({
    super.key,
    required this.session,
    required this.cumulative,
  });

  final SessionStatistics session;
  final CumulativeStatistics cumulative;

  /// 다이얼로그 표시
  static Future<void> show(
    BuildContext context, {
    required SessionStatistics session,
    required CumulativeStatistics cumulative,
  }) {
    return showDialog(
      context: context,
      builder: (_) => StatisticsDialog(
        session: session,
        cumulative: cumulative,
      ),
    );
  }

  @override
  State<StatisticsDialog> createState() => _StatisticsDialogState();
}

class _StatisticsDialogState extends State<StatisticsDialog>
    with SingleTickerProviderStateMixin {
  late TabController _tabController;

  @override
  void initState() {
    super.initState();
    _tabController = TabController(length: 2, vsync: this);
  }

  @override
  void dispose() {
    _tabController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final isKorean = Localizations.localeOf(context).languageCode == 'ko';
    final isJapanese = Localizations.localeOf(context).languageCode == 'ja';

    return Dialog(
      child: Container(
        constraints: const BoxConstraints(maxWidth: 400, maxHeight: 500),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            // 헤더
            Container(
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                color: theme.colorScheme.primaryContainer,
                borderRadius: const BorderRadius.vertical(
                  top: Radius.circular(28),
                ),
              ),
              child: Row(
                children: [
                  Icon(
                    Icons.bar_chart,
                    color: theme.colorScheme.onPrimaryContainer,
                  ),
                  const SizedBox(width: 12),
                  Expanded(
                    child: Text(
                      isKorean
                          ? '게임 통계'
                          : isJapanese
                              ? 'ゲーム統計'
                              : 'Game Statistics',
                      style: theme.textTheme.titleLarge?.copyWith(
                        color: theme.colorScheme.onPrimaryContainer,
                      ),
                    ),
                  ),
                  IconButton(
                    icon: const Icon(Icons.close),
                    onPressed: () => Navigator.of(context).pop(),
                    color: theme.colorScheme.onPrimaryContainer,
                  ),
                ],
              ),
            ),
            // 탭 바
            TabBar(
              controller: _tabController,
              tabs: [
                Tab(
                  text: isKorean
                      ? '현재 세션'
                      : isJapanese
                          ? '現在のセッション'
                          : 'Session',
                ),
                Tab(
                  text: isKorean
                      ? '누적 통계'
                      : isJapanese
                          ? '累積統計'
                          : 'Cumulative',
                ),
              ],
            ),
            // 탭 내용
            Expanded(
              child: TabBarView(
                controller: _tabController,
                children: [
                  _SessionStatisticsView(stats: widget.session),
                  _CumulativeStatisticsView(stats: widget.cumulative),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

/// 세션 통계 뷰
class _SessionStatisticsView extends StatelessWidget {
  const _SessionStatisticsView({required this.stats});

  final SessionStatistics stats;

  @override
  Widget build(BuildContext context) {
    final isKorean = Localizations.localeOf(context).languageCode == 'ko';
    final isJapanese = Localizations.localeOf(context).languageCode == 'ja';

    return ListView(
      padding: const EdgeInsets.all(16),
      children: [
        _StatSection(
          title: isKorean
              ? '전투'
              : isJapanese
                  ? '戦闘'
                  : 'Combat',
          icon: Icons.sports_mma,
          items: [
            _StatItem(
              label: isKorean
                  ? '플레이 시간'
                  : isJapanese
                      ? 'プレイ時間'
                      : 'Play Time',
              value: stats.formattedPlayTime,
            ),
            _StatItem(
              label: isKorean
                  ? '처치한 몬스터'
                  : isJapanese
                      ? '倒したモンスター'
                      : 'Monsters Killed',
              value: _formatNumber(stats.monstersKilled),
            ),
            _StatItem(
              label: isKorean
                  ? '보스 처치'
                  : isJapanese
                      ? 'ボス討伐'
                      : 'Bosses Defeated',
              value: _formatNumber(stats.bossesDefeated),
            ),
            _StatItem(
              label: isKorean
                  ? '사망 횟수'
                  : isJapanese
                      ? '死亡回数'
                      : 'Deaths',
              value: _formatNumber(stats.deathCount),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '데미지'
              : isJapanese
                  ? 'ダメージ'
                  : 'Damage',
          icon: Icons.flash_on,
          items: [
            _StatItem(
              label: isKorean
                  ? '입힌 데미지'
                  : isJapanese
                      ? '与えたダメージ'
                      : 'Damage Dealt',
              value: _formatNumber(stats.totalDamageDealt),
            ),
            _StatItem(
              label: isKorean
                  ? '받은 데미지'
                  : isJapanese
                      ? '受けたダメージ'
                      : 'Damage Taken',
              value: _formatNumber(stats.totalDamageTaken),
            ),
            _StatItem(
              label: isKorean
                  ? '평균 DPS'
                  : isJapanese
                      ? '平均DPS'
                      : 'Average DPS',
              value: stats.averageDps.toStringAsFixed(1),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '스킬'
              : isJapanese
                  ? 'スキル'
                  : 'Skills',
          icon: Icons.auto_awesome,
          items: [
            _StatItem(
              label: isKorean
                  ? '스킬 사용'
                  : isJapanese
                      ? 'スキル使用'
                      : 'Skills Used',
              value: _formatNumber(stats.skillsUsed),
            ),
            _StatItem(
              label: isKorean
                  ? '크리티컬 히트'
                  : isJapanese
                      ? 'クリティカルヒット'
                      : 'Critical Hits',
              value: _formatNumber(stats.criticalHits),
            ),
            _StatItem(
              label: isKorean
                  ? '최대 연속 크리티컬'
                  : isJapanese
                      ? '最大連続クリティカル'
                      : 'Max Critical Streak',
              value: _formatNumber(stats.maxCriticalStreak),
            ),
            _StatItem(
              label: isKorean
                  ? '크리티컬 비율'
                  : isJapanese
                      ? 'クリティカル率'
                      : 'Critical Rate',
              value: '${(stats.criticalRate * 100).toStringAsFixed(1)}%',
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '경제'
              : isJapanese
                  ? '経済'
                  : 'Economy',
          icon: Icons.monetization_on,
          items: [
            _StatItem(
              label: isKorean
                  ? '획득 골드'
                  : isJapanese
                      ? '獲得ゴールド'
                      : 'Gold Earned',
              value: _formatNumber(stats.goldEarned),
            ),
            _StatItem(
              label: isKorean
                  ? '소비 골드'
                  : isJapanese
                      ? '消費ゴールド'
                      : 'Gold Spent',
              value: _formatNumber(stats.goldSpent),
            ),
            _StatItem(
              label: isKorean
                  ? '판매 아이템'
                  : isJapanese
                      ? '売却アイテム'
                      : 'Items Sold',
              value: _formatNumber(stats.itemsSold),
            ),
            _StatItem(
              label: isKorean
                  ? '물약 사용'
                  : isJapanese
                      ? 'ポーション使用'
                      : 'Potions Used',
              value: _formatNumber(stats.potionsUsed),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '진행'
              : isJapanese
                  ? '進行'
                  : 'Progress',
          icon: Icons.trending_up,
          items: [
            _StatItem(
              label: isKorean
                  ? '레벨업'
                  : isJapanese
                      ? 'レベルアップ'
                      : 'Level Ups',
              value: _formatNumber(stats.levelUps),
            ),
            _StatItem(
              label: isKorean
                  ? '완료한 퀘스트'
                  : isJapanese
                      ? '完了したクエスト'
                      : 'Quests Completed',
              value: _formatNumber(stats.questsCompleted),
            ),
          ],
        ),
      ],
    );
  }
}

/// 누적 통계 뷰
class _CumulativeStatisticsView extends StatelessWidget {
  const _CumulativeStatisticsView({required this.stats});

  final CumulativeStatistics stats;

  @override
  Widget build(BuildContext context) {
    final isKorean = Localizations.localeOf(context).languageCode == 'ko';
    final isJapanese = Localizations.localeOf(context).languageCode == 'ja';

    return ListView(
      padding: const EdgeInsets.all(16),
      children: [
        _StatSection(
          title: isKorean
              ? '기록'
              : isJapanese
                  ? '記録'
                  : 'Records',
          icon: Icons.emoji_events,
          items: [
            _StatItem(
              label: isKorean
                  ? '최고 레벨'
                  : isJapanese
                      ? '最高レベル'
                      : 'Highest Level',
              value: _formatNumber(stats.highestLevel),
              highlight: true,
            ),
            _StatItem(
              label: isKorean
                  ? '최대 보유 골드'
                  : isJapanese
                      ? '最大所持ゴールド'
                      : 'Highest Gold Held',
              value: _formatNumber(stats.highestGoldHeld),
              highlight: true,
            ),
            _StatItem(
              label: isKorean
                  ? '최고 연속 크리티컬'
                  : isJapanese
                      ? '最高連続クリティカル'
                      : 'Best Critical Streak',
              value: _formatNumber(stats.bestCriticalStreak),
              highlight: true,
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '총 플레이'
              : isJapanese
                  ? '総プレイ'
                  : 'Total Play',
          icon: Icons.access_time,
          items: [
            _StatItem(
              label: isKorean
                  ? '총 플레이 시간'
                  : isJapanese
                      ? '総プレイ時間'
                      : 'Total Play Time',
              value: stats.formattedTotalPlayTime,
            ),
            _StatItem(
              label: isKorean
                  ? '시작한 게임'
                  : isJapanese
                      ? '開始したゲーム'
                      : 'Games Started',
              value: _formatNumber(stats.gamesStarted),
            ),
            _StatItem(
              label: isKorean
                  ? '클리어한 게임'
                  : isJapanese
                      ? 'クリアしたゲーム'
                      : 'Games Completed',
              value: _formatNumber(stats.gamesCompleted),
            ),
            _StatItem(
              label: isKorean
                  ? '클리어율'
                  : isJapanese
                      ? 'クリア率'
                      : 'Completion Rate',
              value: '${(stats.completionRate * 100).toStringAsFixed(1)}%',
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '총 전투'
              : isJapanese
                  ? '総戦闘'
                  : 'Total Combat',
          icon: Icons.sports_mma,
          items: [
            _StatItem(
              label: isKorean
                  ? '처치한 몬스터'
                  : isJapanese
                      ? '倒したモンスター'
                      : 'Monsters Killed',
              value: _formatNumber(stats.totalMonstersKilled),
            ),
            _StatItem(
              label: isKorean
                  ? '보스 처치'
                  : isJapanese
                      ? 'ボス討伐'
                      : 'Bosses Defeated',
              value: _formatNumber(stats.totalBossesDefeated),
            ),
            _StatItem(
              label: isKorean
                  ? '총 사망'
                  : isJapanese
                      ? '総死亡'
                      : 'Total Deaths',
              value: _formatNumber(stats.totalDeaths),
            ),
            _StatItem(
              label: isKorean
                  ? '총 레벨업'
                  : isJapanese
                      ? '総レベルアップ'
                      : 'Total Level Ups',
              value: _formatNumber(stats.totalLevelUps),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '총 데미지'
              : isJapanese
                  ? '総ダメージ'
                  : 'Total Damage',
          icon: Icons.flash_on,
          items: [
            _StatItem(
              label: isKorean
                  ? '입힌 데미지'
                  : isJapanese
                      ? '与えたダメージ'
                      : 'Damage Dealt',
              value: _formatNumber(stats.totalDamageDealt),
            ),
            _StatItem(
              label: isKorean
                  ? '받은 데미지'
                  : isJapanese
                      ? '受けたダメージ'
                      : 'Damage Taken',
              value: _formatNumber(stats.totalDamageTaken),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '총 스킬'
              : isJapanese
                  ? '総スキル'
                  : 'Total Skills',
          icon: Icons.auto_awesome,
          items: [
            _StatItem(
              label: isKorean
                  ? '스킬 사용'
                  : isJapanese
                      ? 'スキル使用'
                      : 'Skills Used',
              value: _formatNumber(stats.totalSkillsUsed),
            ),
            _StatItem(
              label: isKorean
                  ? '크리티컬 히트'
                  : isJapanese
                      ? 'クリティカルヒット'
                      : 'Critical Hits',
              value: _formatNumber(stats.totalCriticalHits),
            ),
          ],
        ),
        const SizedBox(height: 16),
        _StatSection(
          title: isKorean
              ? '총 경제'
              : isJapanese
                  ? '総経済'
                  : 'Total Economy',
          icon: Icons.monetization_on,
          items: [
            _StatItem(
              label: isKorean
                  ? '획득 골드'
                  : isJapanese
                      ? '獲得ゴールド'
                      : 'Gold Earned',
              value: _formatNumber(stats.totalGoldEarned),
            ),
            _StatItem(
              label: isKorean
                  ? '소비 골드'
                  : isJapanese
                      ? '消費ゴールド'
                      : 'Gold Spent',
              value: _formatNumber(stats.totalGoldSpent),
            ),
            _StatItem(
              label: isKorean
                  ? '판매 아이템'
                  : isJapanese
                      ? '売却アイテム'
                      : 'Items Sold',
              value: _formatNumber(stats.totalItemsSold),
            ),
            _StatItem(
              label: isKorean
                  ? '물약 사용'
                  : isJapanese
                      ? 'ポーション使用'
                      : 'Potions Used',
              value: _formatNumber(stats.totalPotionsUsed),
            ),
            _StatItem(
              label: isKorean
                  ? '완료 퀘스트'
                  : isJapanese
                      ? '完了クエスト'
                      : 'Quests Completed',
              value: _formatNumber(stats.totalQuestsCompleted),
            ),
          ],
        ),
      ],
    );
  }
}

/// 통계 섹션 위젯
class _StatSection extends StatelessWidget {
  const _StatSection({
    required this.title,
    required this.icon,
    required this.items,
  });

  final String title;
  final IconData icon;
  final List<_StatItem> items;

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        // 섹션 헤더
        Row(
          children: [
            Icon(icon, size: 18, color: theme.colorScheme.primary),
            const SizedBox(width: 8),
            Text(
              title,
              style: theme.textTheme.titleSmall?.copyWith(
                fontWeight: FontWeight.bold,
                color: theme.colorScheme.primary,
              ),
            ),
          ],
        ),
        const Divider(height: 8),
        // 통계 항목들
        ...items,
      ],
    );
  }
}

/// 개별 통계 항목 위젯
class _StatItem extends StatelessWidget {
  const _StatItem({
    required this.label,
    required this.value,
    this.highlight = false,
  });

  final String label;
  final String value;
  final bool highlight;

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);

    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 4),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(
            label,
            style: theme.textTheme.bodyMedium?.copyWith(
              color: theme.colorScheme.onSurfaceVariant,
            ),
          ),
          Container(
            padding: highlight
                ? const EdgeInsets.symmetric(horizontal: 8, vertical: 2)
                : null,
            decoration: highlight
                ? BoxDecoration(
                    color: theme.colorScheme.primaryContainer,
                    borderRadius: BorderRadius.circular(4),
                  )
                : null,
            child: Text(
              value,
              style: theme.textTheme.bodyMedium?.copyWith(
                fontWeight: FontWeight.bold,
                fontFamily: 'monospace',
                color: highlight
                    ? theme.colorScheme.onPrimaryContainer
                    : theme.colorScheme.onSurface,
              ),
            ),
          ),
        ],
      ),
    );
  }
}

/// 숫자 포맷팅 (천 단위 콤마)
String _formatNumber(int value) {
  if (value < 1000) return value.toString();

  final result = StringBuffer();
  final str = value.toString();
  final length = str.length;

  for (var i = 0; i < length; i++) {
    if (i > 0 && (length - i) % 3 == 0) {
      result.write(',');
    }
    result.write(str[i]);
  }

  return result.toString();
}