/// 일정 카드 위젯
library;

import 'package:flutter/material.dart';
import '../../../core/constants.dart';
import '../../../models/schedule.dart';
import 'member_chip.dart';

/// HTML 엔티티 디코딩
String decodeHtmlEntities(String text) {
  return text
      .replaceAll('&', '&')
      .replaceAll('&lt;', '<')
      .replaceAll('&gt;', '>')
      .replaceAll('&quot;', '"')
      .replaceAll('&#39;', "'")
      .replaceAll('&nbsp;', ' ');
}

/// 카테고리 색상 파싱
Color parseColor(String? colorStr) {
  if (colorStr == null || colorStr.isEmpty) return AppColors.textTertiary;
  try {
    final hex = colorStr.replaceFirst('#', '');
    return Color(int.parse('FF$hex', radix: 16));
  } catch (_) {
    return AppColors.textTertiary;
  }
}

/// 애니메이션이 적용된 일정 카드 래퍼
class AnimatedScheduleCard extends StatefulWidget {
  final int index;
  final Schedule schedule;
  final Color categoryColor;

  const AnimatedScheduleCard({
    super.key,
    required this.index,
    required this.schedule,
    required this.categoryColor,
  });

  @override
  State<AnimatedScheduleCard> createState() => _AnimatedScheduleCardState();
}

class _AnimatedScheduleCardState extends State<AnimatedScheduleCard>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  late Animation<double> _fadeAnimation;
  late Animation<double> _slideAnimation;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      duration: const Duration(milliseconds: 300),
      vsync: this,
    );

    _fadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(parent: _controller, curve: Curves.easeOut),
    );

    _slideAnimation = Tween<double>(begin: -10.0, end: 0.0).animate(
      CurvedAnimation(parent: _controller, curve: Curves.easeOutCubic),
    );

    // 순차적 애니메이션 (index * 30ms 딜레이)
    Future.delayed(Duration(milliseconds: widget.index * 30), () {
      if (mounted) _controller.forward();
    });
  }

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

  @override
  Widget build(BuildContext context) {
    return AnimatedBuilder(
      animation: _controller,
      builder: (context, child) {
        return Opacity(
          opacity: _fadeAnimation.value,
          child: Transform.translate(
            offset: Offset(_slideAnimation.value, 0),
            child: child,
          ),
        );
      },
      child: ScheduleCard(
        schedule: widget.schedule,
        categoryColor: widget.categoryColor,
      ),
    );
  }
}

/// 일정 카드 위젯
class ScheduleCard extends StatelessWidget {
  final Schedule schedule;
  final Color categoryColor;

  const ScheduleCard({
    super.key,
    required this.schedule,
    required this.categoryColor,
  });

  @override
  Widget build(BuildContext context) {
    final memberList = schedule.memberList;

    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withValues(alpha: 0.04),
            blurRadius: 12,
            offset: const Offset(0, 2),
          ),
        ],
        border: Border.all(
          color: AppColors.border.withValues(alpha: 0.5),
          width: 1,
        ),
      ),
      child: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // 시간 및 카테고리 뱃지
            Row(
              children: [
                // 시간 뱃지
                if (schedule.formattedTime != null)
                  Container(
                    padding:
                        const EdgeInsets.symmetric(horizontal: 8, vertical: 3),
                    decoration: BoxDecoration(
                      color: categoryColor,
                      borderRadius: BorderRadius.circular(12),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        const Icon(
                          Icons.access_time,
                          size: 10,
                          color: Colors.white,
                        ),
                        const SizedBox(width: 4),
                        Text(
                          schedule.formattedTime!,
                          style: const TextStyle(
                            fontSize: 11,
                            fontWeight: FontWeight.w500,
                            color: Colors.white,
                          ),
                        ),
                      ],
                    ),
                  ),
                if (schedule.formattedTime != null) const SizedBox(width: 6),
                // 카테고리 뱃지
                if (schedule.categoryName != null)
                  Container(
                    padding:
                        const EdgeInsets.symmetric(horizontal: 8, vertical: 3),
                    decoration: BoxDecoration(
                      color: categoryColor.withValues(alpha: 0.1),
                      borderRadius: BorderRadius.circular(12),
                    ),
                    child: Text(
                      schedule.categoryName!,
                      style: TextStyle(
                        fontSize: 11,
                        fontWeight: FontWeight.w500,
                        color: categoryColor,
                      ),
                    ),
                  ),
              ],
            ),
            const SizedBox(height: 10),
            // 제목
            Text(
              decodeHtmlEntities(schedule.title),
              style: const TextStyle(
                fontSize: 15,
                fontWeight: FontWeight.bold,
                color: AppColors.textPrimary,
                height: 1.4,
              ),
            ),
            // 출처
            if (schedule.sourceName != null &&
                schedule.sourceName!.isNotEmpty) ...[
              const SizedBox(height: 6),
              Row(
                children: [
                  Icon(
                    Icons.link,
                    size: 11,
                    color: AppColors.textTertiary,
                  ),
                  const SizedBox(width: 4),
                  Text(
                    schedule.sourceName!,
                    style: const TextStyle(
                      fontSize: 11,
                      color: AppColors.textTertiary,
                    ),
                  ),
                ],
              ),
            ],
            // 멤버
            if (memberList.isNotEmpty) ...[
              const SizedBox(height: 12),
              // divider (전체 너비)
              Container(
                width: double.infinity,
                height: 1,
                color: AppColors.divider,
              ),
              const SizedBox(height: 12),
              Wrap(
                spacing: 6,
                runSpacing: 6,
                children: memberList.length >= 5
                    ? [
                        const MemberChip(name: '프로미스나인'),
                      ]
                    : memberList
                        .map((name) => MemberChip(name: name))
                        .toList(),
              ),
            ],
          ],
        ),
      ),
    );
  }
}