import 'dart:math';
import 'package:flutter/material.dart';

class TaskClock extends StatefulWidget {
  const TaskClock({super.key});

  @override
  State<TaskClock> createState() => _TaskClockState();
}

class _TaskClockState extends State<TaskClock> with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  DateTime currentTime = DateTime.now();

  // 🕒 Görevler Listesi (Tamamen Özelleştirilebilir)
  final List<Map<String, dynamic>> tasks = [
    {"name": "Spor", "start": 6, "end": 7, "priority": "Yüksek", "emoji": "🏋️‍♂️"},
    {"name": "Toplantı", "start": 9, "end": 10, "priority": "Kritik", "emoji": "📅"},
    {"name": "Öğle Yemeği", "start": 12, "end": 13, "priority": "Orta", "emoji": "🍽️"},
    {"name": "Kodlama", "start": 15, "end": 17, "priority": "Düşük", "emoji": "💻"},
  ];

  // 🔥 Öncelik Seviyeleri
  final List<Map<String, dynamic>> priorities = [
    {"name": "Düşük", "color": Colors.blue, "effect": "opacity"},
    {"name": "Orta", "color": Colors.green, "effect": "none"},
    {"name": "Yüksek", "color": Colors.orange, "effect": "pulse"},
    {"name": "Kritik", "color": Colors.red, "effect": "vibration"},
  ];

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(vsync: this, duration: const Duration(seconds: 1))..repeat(reverse: true);
  }

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: AnimatedBuilder(
          animation: _controller,
          builder: (context, child) {
            return CustomPaint(
              painter: TaskPainter(
                tasks: tasks,
                currentTime: currentTime,
                priorities: priorities,
                animationValue: _controller.value,
              ),
              size: const Size(300, 300),
            );
          },
        ),
      ),
    );
  }
}

// 🎨 CANVAS RENDERING (GÖREV ÇİZİMİ)
class TaskPainter extends CustomPainter {
  final List<Map<String, dynamic>> tasks;
  final List<Map<String, dynamic>> priorities;
  final DateTime currentTime;
  final double animationValue;

  TaskPainter({
    required this.tasks,
    required this.currentTime,
    required this.priorities,
    required this.animationValue,
  });

  @override
  void paint(Canvas canvas, Size size) {
    final center = Offset(size.width / 2, size.height / 2);
    final radius = size.width / 2;
    final paint = Paint()..style = PaintingStyle.fill;

    // ⏳ Çemberin Arka Planı
    paint.color = Colors.grey.shade800;
    canvas.drawCircle(center, radius, paint);

    // 🔥 Görevleri Çiz
    for (var task in tasks) {
      final priority = priorities.firstWhere((p) => p["name"] == task["priority"]);
      final color = priority["color"] as Color;
      final effect = priority["effect"] as String;

      double startAngle = (task["start"] / 24) * 2 * pi - pi / 2;
      double sweepAngle = ((task["end"] - task["start"]) / 24) * 2 * pi;

      paint.color = color.withOpacity(effect == "opacity" ? 0.5 : 1.0);
      canvas.drawArc(Rect.fromCircle(center: center, radius: radius), startAngle, sweepAngle, true, paint);

      // 🎭 Animasyon Efektleri
      if (effect == "pulse") {
        paint.color = color.withOpacity(animationValue);
        canvas.drawArc(Rect.fromCircle(center: center, radius: radius - 5), startAngle, sweepAngle, true, paint);
      } else if (effect == "vibration") {
        final offset = (animationValue - 0.5) * 10;
        canvas.drawArc(
            Rect.fromCircle(center: Offset(center.dx + offset, center.dy), radius: radius), startAngle, sweepAngle, true, paint);
      }

      // 🕒 Saat Etiketleri
      final textPainter = TextPainter(
        text: TextSpan(
          text: "${task["emoji"]} ${task["name"]}",
          style: const TextStyle(color: Colors.white, fontSize: 12),
        ),
        textDirection: TextDirection.ltr,
      )..layout();

      final angle = startAngle + sweepAngle / 2;
      final labelX = center.dx + cos(angle) * radius * 0.7 - textPainter.width / 2;
      final labelY = center.dy + sin(angle) * radius * 0.7 - textPainter.height / 2;

      textPainter.paint(canvas, Offset(labelX, labelY));
    }
  }

  @override
  bool shouldRepaint(TaskPainter oldDelegate) => true;
}