// Author: fruit.com.cn
// 展示可点击的金币、观看记录与收藏三列个人数据。

import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:provider/provider.dart';

import '../../../core/data/services/auth_controller.dart';
import '../../../core/data/services/favorite_controller.dart';
import '../../../core/data/services/wallet_controller.dart';
import '../../../core/theme/app_colors.dart';
import '../../../core/theme/app_dimens.dart';
import '../../../l10n/app_localizations.dart';
import 'mine_stat_icon.dart';

const int _labelMaxLines = 2;
const double _dividerTop = 36;

/// 三项个人数据入口的现有页面回调。
class MineStatsActions {
  /// 绑定钱包、观看记录与收藏页面。
  const MineStatsActions({
    required this.onWallet,
    required this.onHistory,
    required this.onFavorites,
  });

  final VoidCallback onWallet;
  final VoidCallback onHistory;
  final VoidCallback onFavorites;
}

/// 将共享的账号、钱包和收藏状态绑定到个人数据区。
class MineStatsSection extends StatelessWidget {
  /// 观看记录由我的页逻辑提供，其余状态沿用全局 Provider。
  const MineStatsSection({
    super.key,
    required this.watchRecordCount,
    required this.actions,
  });

  final int? watchRecordCount;
  final MineStatsActions actions;

  @override
  Widget build(BuildContext context) {
    final signedIn = context.watch<AuthController>().isSignedIn;
    final wallet = context.watch<WalletController>();
    final favorites = context.watch<FavoriteController>();
    return MineStatsPanel(
      coinBalance: signedIn && wallet.error == null
          ? wallet.snapshot?.wallet.coinBalance
          : null,
      watchRecordCount: watchRecordCount,
      favoriteCount: favorites.loaded && favorites.error == null
          ? favorites.total
          : null,
      actions: actions,
    );
  }
}

/// 头像与会员卡之间的个人数据，未知值与真实零值明确区分。
class MineStatsPanel extends StatelessWidget {
  /// 使用真实服务端总数与共享钱包余额构建数据区。
  const MineStatsPanel({
    super.key,
    required this.coinBalance,
    required this.watchRecordCount,
    required this.favoriteCount,
    required this.actions,
  });

  final int? coinBalance;
  final int? watchRecordCount;
  final int? favoriteCount;
  final MineStatsActions actions;

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context)!;
    return Row(
      key: const Key('mine-stats'),
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        _tile(
          type: MineStatIconType.coins,
          value: coinBalance,
          label: l10n.coinBalance,
          onTap: actions.onWallet,
        ),
        _divider(),
        _tile(
          type: MineStatIconType.history,
          value: watchRecordCount,
          label: l10n.watchRecordsCountLabel,
          onTap: actions.onHistory,
        ),
        _divider(),
        _tile(
          type: MineStatIconType.favorites,
          value: favoriteCount,
          label: l10n.myFavorites,
          onTap: actions.onFavorites,
        ),
      ],
    );
  }

  Widget _tile({
    required MineStatIconType type,
    required int? value,
    required String label,
    required VoidCallback onTap,
  }) {
    return Expanded(
      child: _MineStatTile(
        type: type,
        value: value,
        label: label,
        onTap: onTap,
      ),
    );
  }

  Widget _divider() {
    return Padding(
      padding: const EdgeInsets.only(top: _dividerTop),
      child: Container(
        width: AppDimens.mineStatsDividerWidth,
        height: AppDimens.mineStatsDividerHeight,
        color: AppColors.contentBorder,
      ),
    );
  }
}

class _MineStatTile extends StatelessWidget {
  const _MineStatTile({
    required this.type,
    required this.value,
    required this.label,
    required this.onTap,
  });

  final MineStatIconType type;
  final int? value;
  final String label;
  final VoidCallback onTap;

  String get _key => switch (type) {
    MineStatIconType.coins => 'mine-stat-coins',
    MineStatIconType.history => 'mine-stat-watch-records',
    MineStatIconType.favorites => 'mine-stat-favorites',
  };

  @override
  Widget build(BuildContext context) {
    final l10n = AppLocalizations.of(context)!;
    final formatted = value == null
        ? l10n.dataUnavailable
        : NumberFormat.decimalPattern(l10n.localeName).format(value);
    return Semantics(
      button: true,
      label: label,
      value: formatted,
      onTap: onTap,
      excludeSemantics: true,
      child: Material(
        color: AppColors.transparent,
        child: InkWell(
          key: ValueKey(_key),
          onTap: onTap,
          excludeFromSemantics: true,
          borderRadius: BorderRadius.circular(AppDimens.innerRadius),
          child: ConstrainedBox(
            constraints: const BoxConstraints(
              minHeight: AppDimens.mineStatsMinHeight,
            ),
            child: Padding(
              padding: const EdgeInsets.symmetric(
                horizontal: AppDimens.spaceXs,
                vertical: AppDimens.spaceSm,
              ),
              child: _content(formatted),
            ),
          ),
        ),
      ),
    );
  }

  Widget _content(String formatted) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        MineStatIcon(key: ValueKey('$_key-icon'), type: type),
        const SizedBox(height: AppDimens.spaceXs),
        FittedBox(
          fit: BoxFit.scaleDown,
          child: Text(
            formatted,
            key: ValueKey('$_key-value'),
            maxLines: 1,
            style: const TextStyle(
              fontFamily: 'Outfit',
              color: AppColors.textPrimary,
              fontSize: AppDimens.mineStatsValueFont,
              fontWeight: FontWeight.w600,
              fontFeatures: [FontFeature.tabularFigures()],
              height: AppDimens.mineStatsValueLineHeight,
            ),
          ),
        ),
        const SizedBox(height: AppDimens.spaceXs),
        Text(
          label,
          maxLines: _labelMaxLines,
          overflow: TextOverflow.ellipsis,
          textAlign: TextAlign.center,
          style: const TextStyle(
            color: AppColors.textTertiary,
            fontSize: AppDimens.mineStatsLabelFont,
            height: AppDimens.mineStatsLabelLineHeight,
          ),
        ),
      ],
    );
  }
}