/// 时间: 2025-03-22
/// 功能: 诗词页面通用组件和工具函数
/// 介绍: 从 home_page.dart 和 home_part.dart 中提取的公共组件，用于代码复用和简化
/// 最新变化: 2026-04-02 支持深色模式

import 'dart:io';
import 'dart:ui' as ui;
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:path_provider/path_provider.dart';
import 'package:share_plus/share_plus.dart';
import '../../../constants/app_constants.dart';
import '../../../utils/http/poetry_api.dart';
import 'home-load.dart';

/// 加载状态组件
class LoadingWidget extends StatelessWidget {
  final bool isDark;

  const LoadingWidget({super.key, this.isDark = false});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          CircularProgressIndicator(
            valueColor: AlwaysStoppedAnimation<Color>(
              AppConstants.primaryColor,
            ),
          ),
          const SizedBox(height: 16),
          Text(
            '加载中...',
            style: TextStyle(
              fontSize: 16,
              color: isDark ? Colors.grey[400] : const Color(0xFF757575),
            ),
          ),
        ],
      ),
    );
  }
}

/// 截图和分享工具类
class ShareImageUtils {
  static Future<void> captureAndShare(
    BuildContext context,
    GlobalKey repaintKey, {
    String? subject,
  }) async {
    try {
      Get.snackbar('提示', '正在生成图片...');

      final boundary =
          repaintKey.currentContext?.findRenderObject()
              as RenderRepaintBoundary?;
      if (boundary == null) {
        Get.snackbar('错误', '生成图片失败');
        return;
      }

      final image = await boundary.toImage(pixelRatio: 3.0);
      final byteData = await image.toByteData(format: ui.ImageByteFormat.png);
      if (byteData == null) {
        Get.snackbar('错误', '生成图片失败');
        return;
      }

      final pngBytes = byteData.buffer.asUint8List();
      final directory = await getTemporaryDirectory();
      final file = File(
        '${directory.path}/poetry_${DateTime.now().millisecondsSinceEpoch}.png',
      );
      await file.writeAsBytes(pngBytes);

      await Share.shareXFiles([XFile(file.path)], subject: subject ?? '诗词分享');

      Get.snackbar(
        '成功',
        '分享成功！',

        // snackPosition: SnackPosition.TOP,
        // backgroundColor: Colors.transparent,
        // colorText: Colors.white,
        // duration: const Duration(seconds: 2),
        // margin: const EdgeInsets.all(16),
        // borderRadius: 20,
        // animationDuration: const Duration(milliseconds: 300),
        // maxWidth: Get.width - 32,
        // overlayBlur: 0.1,
        // overlayColor: Colors.transparent,
        // isDismissible: true,
        // padding: EdgeInsets.zero,
        // shouldIconPulse: false,
        // barBlur: 20,
      );
    } catch (e) {
      Get.snackbar(
        '错误',
        '分享失败：${e.toString().substring(0, e.toString().length > 50 ? 50 : e.toString().length)}',
      );
    }
  }
}

/// 错误状态组件
class CustomErrorWidget extends StatelessWidget {
  final String errorMessage;
  final VoidCallback onRetry;
  final bool isDark;

  const CustomErrorWidget({
    super.key,
    required this.errorMessage,
    required this.onRetry,
    this.isDark = false,
  });

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            Icons.error_outline,
            size: 64,
            color: isDark ? Colors.grey[600] : Colors.grey[400],
          ),
          const SizedBox(height: 16),
          Text(
            errorMessage,
            style: TextStyle(
              fontSize: 16,
              color: isDark ? Colors.grey[400] : Colors.grey,
            ),
            textAlign: TextAlign.center,
          ),
          const SizedBox(height: 16),
          ElevatedButton(
            onPressed: onRetry,
            style: ElevatedButton.styleFrom(
              backgroundColor: AppConstants.primaryColor,
            ),
            child: const Text('重试'),
          ),
        ],
      ),
    );
  }
}

/// 空状态组件
class EmptyWidget extends StatelessWidget {
  final bool isDark;

  const EmptyWidget({super.key, this.isDark = false});

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Text(
        '暂无诗词内容',
        style: TextStyle(
          fontSize: 16,
          color: isDark ? Colors.grey[400] : Colors.grey,
        ),
      ),
    );
  }
}

/// 诗词状态管理工具类
class PoetryStateManager {
  static void setLoadingState(VoidCallback setState, bool loading) {
    setState();
  }

  static void setErrorState(VoidCallback setState, String error) {
    setState();
  }

  static void setSuccessState(VoidCallback setState, PoetryData data) {
    setState();
  }

  static String formatErrorMessage(String error) {
    return error.toString().contains('HttpException')
        ? error.toString().replaceAll('HttpException: ', '')
        : '获取诗词失败';
  }

  static void showSnackBar(
    BuildContext context,
    String message, {
    Color? backgroundColor,
    Duration? duration,
  }) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Text(message),
        backgroundColor: backgroundColor ?? AppConstants.successColor,
        duration: duration ?? const Duration(seconds: 2),
      ),
    );
  }

  static void triggerHapticFeedback() {
    HapticFeedback.lightImpact();
  }

  static void triggerHapticFeedbackMedium() {
    HapticFeedback.mediumImpact();
  }
}

/// 诗词数据工具类
class PoetryDataUtils {
  static List<String> extractKeywords(PoetryData? poetryData) {
    return poetryData?.keywordList ?? [];
  }

  static String getStarDisplay(PoetryData? poetryData) {
    return poetryData?.starDisplay ?? '';
  }

  static String generateStars(int? starCount) {
    if (starCount == null) return '';
    final count = starCount > 5 ? 5 : starCount;
    if (count == 5) {
      return ' 🌟$count';
    } else {
      return ' ⭐$count';
    }
  }

  static String generateLikeText(int? likeCount) {
    if (likeCount == null) return '';
    return ' ❤️ $likeCount';
  }

  static String generateViewText(int? viewCount) {
    if (viewCount == null) return '';
    return ' 🔥 $viewCount';
  }

  static bool isValidPoetryData(PoetryData? poetryData) {
    return poetryData != null && poetryData.name.isNotEmpty;
  }
}

/// 动画工具类
class AnimationUtils {
  static AnimationController createFadeController(TickerProvider vsync) {
    return AnimationController(
      duration: AppConstants.animationDurationMedium,
      vsync: vsync,
    );
  }

  static AnimationController createSlideController(TickerProvider vsync) {
    return AnimationController(
      duration: AppConstants.animationDurationShort,
      vsync: vsync,
    );
  }

  static Animation<double> createFadeAnimation(AnimationController controller) {
    return CurvedAnimation(parent: controller, curve: Curves.easeIn);
  }

  static Animation<Offset> createSlideAnimation(
    AnimationController controller,
  ) {
    return Tween<Offset>(
      begin: const Offset(0.0, 0.3),
      end: Offset.zero,
    ).animate(CurvedAnimation(parent: controller, curve: Curves.easeOutCubic));
  }
}

/// 复制工具类
class CopyUtils {
  static void copyToClipboard(
    BuildContext context,
    String content,
    String contentType, {
    VoidCallback? onSuccess,
    bool isDark = false,
  }) {
    try {
      Clipboard.setData(ClipboardData(text: content));
      Get.snackbar('提示', '已复制$contentType');
      DebugInfoManager().showCopySuccess();
      onSuccess?.call();
    } catch (e) {
      Get.snackbar('错误', '复制失败');
      DebugInfoManager().showCopyFailed();
    }
  }

  static void showCopyDialog(
    BuildContext context,
    String content,
    String contentType, {
    bool isDark = false,
  }) {
    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        backgroundColor: isDark ? const Color(0xFF1E1E1E) : Colors.white,
        title: Text(
          '复制$contentType',
          style: TextStyle(color: isDark ? Colors.white : Colors.black87),
        ),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(
              '受隐私权限约束，频繁写入剪切板需告知用户',
              style: TextStyle(
                fontSize: 16,
                fontWeight: FontWeight.w500,
                color: isDark ? Colors.grey[300] : Colors.black87,
              ),
            ),
            const SizedBox(height: 12),
            Text(
              '预览内容：',
              style: TextStyle(
                fontSize: 14,
                color: isDark ? Colors.grey[400] : Colors.grey[600],
              ),
            ),
            const SizedBox(height: 4),
            Container(
              width: double.infinity,
              padding: const EdgeInsets.all(8),
              decoration: BoxDecoration(
                color: isDark ? const Color(0xFF2A2A2A) : Colors.grey[100],
                borderRadius: BorderRadius.circular(4),
                border: Border.all(
                  color: isDark ? Colors.grey[700]! : Colors.grey[300]!,
                ),
              ),
              child: Text(
                content.length > 50
                    ? '${content.substring(0, 50)}...'
                    : content,
                style: TextStyle(
                  fontSize: 12,
                  color: isDark ? Colors.grey[300] : Colors.black87,
                ),
              ),
            ),
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(),
            child: Text(
              '返回',
              style: TextStyle(
                color: isDark ? Colors.grey[400] : Colors.grey[600],
              ),
            ),
          ),
          ElevatedButton(
            onPressed: () {
              Navigator.of(context).pop();
              copyToClipboard(context, content, contentType, isDark: isDark);
            },
            style: ElevatedButton.styleFrom(
              backgroundColor: AppConstants.primaryColor,
              foregroundColor: Colors.white,
            ),
            child: Text('复制$contentType'),
          ),
        ],
      ),
    );
  }
}

/// 悬浮分享按钮组件
class FloatingShareButton extends StatelessWidget {
  final VoidCallback onShare;
  final bool isDark;

  const FloatingShareButton({
    super.key,
    required this.onShare,
    this.isDark = false,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 56,
      height: 56,
      decoration: BoxDecoration(
        color: AppConstants.secondaryColor,
        shape: BoxShape.circle,
        boxShadow: [
          BoxShadow(
            color: AppConstants.secondaryColor.withAlpha(76),
            blurRadius: 8,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Material(
        color: Colors.transparent,
        child: InkWell(
          borderRadius: BorderRadius.circular(28),
          onTap: () {
            HapticFeedback.lightImpact();
            onShare();
          },
          child: const Center(
            child: Icon(Icons.share, color: Colors.white, size: 28),
          ),
        ),
      ),
    );
  }
}

/// 悬浮上一条按钮
class FloatingPreviousButton extends StatelessWidget {
  final VoidCallback onPrevious;
  final bool isDark;

  const FloatingPreviousButton({
    super.key,
    required this.onPrevious,
    this.isDark = false,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 56,
      height: 56,
      decoration: BoxDecoration(
        color: isDark ? const Color(0xFF2A2A2A) : Colors.white,
        shape: BoxShape.circle,
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(isDark ? 40 : 20),
            blurRadius: 8,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Material(
        color: Colors.transparent,
        child: InkWell(
          borderRadius: BorderRadius.circular(28),
          onTap: () {
            HapticFeedback.lightImpact();
            onPrevious();
          },
          child: Center(
            child: Icon(
              Icons.arrow_back,
              color: isDark ? Colors.grey[300] : AppConstants.primaryColor,
              size: 28,
            ),
          ),
        ),
      ),
    );
  }
}

/// 悬浮下一条按钮
class FloatingNextButton extends StatelessWidget {
  final VoidCallback onNext;
  final bool isDark;

  const FloatingNextButton({
    super.key,
    required this.onNext,
    this.isDark = false,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 56,
      height: 56,
      decoration: BoxDecoration(
        color: isDark ? const Color(0xFF2A2A2A) : Colors.white,
        shape: BoxShape.circle,
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(isDark ? 40 : 20),
            blurRadius: 8,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Material(
        color: Colors.transparent,
        child: InkWell(
          borderRadius: BorderRadius.circular(28),
          onTap: () {
            HapticFeedback.lightImpact();
            onNext();
          },
          child: Center(
            child: Icon(
              Icons.arrow_forward,
              color: isDark ? Colors.grey[300] : AppConstants.primaryColor,
              size: 28,
            ),
          ),
        ),
      ),
    );
  }
}

/// 悬浮点赞按钮
class FloatingLikeButton extends StatelessWidget {
  final bool isLiked;
  final bool isLoadingLike;
  final VoidCallback onToggleLike;
  final bool isDark;

  const FloatingLikeButton({
    super.key,
    required this.isLiked,
    required this.isLoadingLike,
    required this.onToggleLike,
    this.isDark = false,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 56,
      height: 56,
      decoration: BoxDecoration(
        color: isLiked
            ? Colors.red
            : (isDark ? const Color(0xFF2A2A2A) : Colors.white),
        shape: BoxShape.circle,
        boxShadow: [
          BoxShadow(
            color: (isLiked ? Colors.red : Colors.black).withAlpha(
              isDark ? 40 : 20,
            ),
            blurRadius: 8,
            offset: const Offset(0, 4),
          ),
        ],
      ),
      child: Material(
        color: Colors.transparent,
        child: InkWell(
          borderRadius: BorderRadius.circular(28),
          onTap: isLoadingLike
              ? null
              : () {
                  HapticFeedback.lightImpact();
                  onToggleLike();
                },
          child: Center(
            child: isLoadingLike
                ? SizedBox(
                    width: 24,
                    height: 24,
                    child: CircularProgressIndicator(
                      strokeWidth: 2,
                      valueColor: AlwaysStoppedAnimation<Color>(
                        isDark ? Colors.grey[300]! : AppConstants.primaryColor,
                      ),
                    ),
                  )
                : Icon(
                    isLiked ? Icons.favorite : Icons.favorite_border,
                    color: isLiked
                        ? Colors.white
                        : (isDark ? Colors.grey[300] : Colors.grey),
                    size: 28,
                  ),
          ),
        ),
      ),
    );
  }
}

/// 统计信息卡片组件
class StatsCard extends StatelessWidget {
  final PoetryData poetryData;
  final bool isDark;

  const StatsCard({super.key, required this.poetryData, this.isDark = false});

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 16),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: isDark ? const Color(0xFF1E1E1E) : Colors.white,
        borderRadius: BorderRadius.circular(12),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withAlpha(isDark ? 40 : 5),
            blurRadius: 5,
            offset: const Offset(0, 1),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(
            '统计信息',
            style: TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.bold,
              color: AppConstants.primaryColor,
            ),
          ),
          const SizedBox(height: 12),
          Row(
            children: [
              _buildStatItem('今日', poetryData.hitsDay.toString()),
              const SizedBox(width: 20),
              _buildStatItem('本月', poetryData.hitsMonth.toString()),
              const SizedBox(width: 20),
              _buildStatItem('总计', poetryData.hitsTotal.toString()),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildStatItem(String label, String value) {
    return Expanded(
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(
            value,
            style: TextStyle(
              fontSize: 18,
              fontWeight: FontWeight.bold,
              color: isDark ? Colors.grey[200] : Colors.black87,
            ),
          ),
          const SizedBox(height: 4),
          Text(
            label,
            style: TextStyle(
              fontSize: 12,
              color: isDark ? Colors.grey[400] : Colors.grey,
            ),
          ),
        ],
      ),
    );
  }
}