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

class Sectograph extends StatefulWidget {
  final DateTime currentTime;
  final List<Task> tasks;
  final bool hidePastTasks;

  const Sectograph({
    Key? key,
    required this.currentTime,
    required this.tasks,
    this.hidePastTasks = true,
  }) : super(key: key);

  @override
  _SectographState createState() => _SectographState();
}

class _SectographState extends State<Sectograph> with SingleTickerProviderStateMixin {
  late AnimationController _controller;

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

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

  @override
  Widget build(BuildContext context) {
    return AnimatedBuilder(
      animation: _controller,
      builder: (context, child) {
        return CustomPaint(
          painter: SectographPainter(
            currentTime: widget.currentTime,
            tasks: widget.tasks,
            hidePastTasks: widget.hidePastTasks,
          ),
          size: const Size(300, 300),
        );
      },
    );
  }
}

class SectographPainter extends CustomPainter {
  final DateTime currentTime;
  final List<Task> tasks;
  final bool hidePastTasks;

  SectographPainter({
    required this.currentTime,
    required this.tasks,
    this.hidePastTasks = true,
  });

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

    for (var task in tasks) {
      if (hidePastTasks && task.endTime.isBefore(currentTime)) continue;
      final startAngle = (task.startTime.hour * 15 + task.startTime.minute * 0.25) * pi / 180;
      final sweepAngle = ((task.endTime.difference(task.startTime).inMinutes) * 0.25) * pi / 180;
      paint.color = task.color;
      paint.strokeWidth = 10;
      canvas.drawArc(
        Rect.fromCircle(center: center, radius: radius - 10),
        startAngle - pi / 2,
        sweepAngle,
        false,
        paint,
      );
    }
  }

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

class Task {
  final String name;
  final DateTime startTime;
  final DateTime endTime;
  final Color color;
  final IconData icon;
  final int priority; // Öncelik seviyesi 1-5 arası

  Task({
    required this.name,
    required this.startTime,
    required this.endTime,
    required this.color,
    required this.icon,
    this.priority = 3,
  });
}

// Örnek kullanım
void main() {
  runApp(MaterialApp(
    home: Scaffold(
      body: Center(
        child: Sectograph(
          currentTime: DateTime.now(),
          tasks: [
            Task(
              name: "Toplantı",
              startTime: DateTime.now().subtract(Duration(hours: 1)),
              endTime: DateTime.now().add(Duration(hours: 1)),
              color: Colors.blue,
              icon: Icons.work,
              priority: 2,
            ),
            Task(
              name: "Rapor Yazımı",
              startTime: DateTime.now().add(Duration(hours: 2)),
              endTime: DateTime.now().add(Duration(hours: 4)),
              color: Colors.red,
              icon: Icons.edit,
              priority: 1,
            ),
          ],
        ),
      ),
    ),
  ));
}