import 'package:flutter/material.dart';
import 'package:intaleq_maps/intaleq_maps.dart';
import '../services/military_grid_utils.dart';

enum MapPickerTarget {
  losObserver,
  losTarget,
  routeOrigin,
  routeDestination,
}

class InteractiveMapPickerHud extends StatelessWidget {
  final MapPickerTarget target;
  final LatLng centerPosition;
  final VoidCallback onConfirm;
  final VoidCallback onCancel;

  const InteractiveMapPickerHud({
    super.key,
    required this.target,
    required this.centerPosition,
    required this.onConfirm,
    required this.onCancel,
  });

  String get title {
    switch (target) {
      case MapPickerTarget.losObserver:
        return 'تحديد موقع الراصد الميداني (Observer) 🔴';
      case MapPickerTarget.losTarget:
        return 'تحديد موقع الهدف التكتيكي (Target) 🎯';
      case MapPickerTarget.routeOrigin:
        return 'تحديد نقطة الانطلاق (البداية) 🟢';
      case MapPickerTarget.routeDestination:
        return 'تحديد نقطة الوصول والهدف (الوجهة) 🏁';
    }
  }

  Color get themeColor {
    switch (target) {
      case MapPickerTarget.losObserver:
        return const Color(0xFF38BDF8);
      case MapPickerTarget.losTarget:
        return const Color(0xFFEF4444);
      case MapPickerTarget.routeOrigin:
        return const Color(0xFF22C55E);
      case MapPickerTarget.routeDestination:
        return const Color(0xFFF59E0B);
    }
  }

  IconData get pinIcon {
    switch (target) {
      case MapPickerTarget.losObserver:
        return Icons.person_pin_circle;
      case MapPickerTarget.losTarget:
        return Icons.gps_fixed;
      case MapPickerTarget.routeOrigin:
        return Icons.my_location;
      case MapPickerTarget.routeDestination:
        return Icons.flag;
    }
  }

  @override
  Widget build(BuildContext context) {
    final milCoords = MilitaryGridUtils.fromLatLng(centerPosition);

    return Stack(
      children: [
        // ── 1. Center Floating Marker & Tooltip (Siro Rider Style) ──
        Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              // Dynamic Floating Coordinates Bubble
              Container(
                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
                decoration: BoxDecoration(
                  color: const Color(0xF20F172A),
                  borderRadius: BorderRadius.circular(20),
                  border: Border.all(color: themeColor, width: 1.5),
                  boxShadow: const [BoxShadow(color: Colors.black54, blurRadius: 15)],
                ),
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Text(
                      'شرقيات: ${milCoords.eastingStr} م • شماليات: ${milCoords.northingStr} م',
                      style: const TextStyle(color: Colors.white, fontSize: 11, fontWeight: FontWeight.bold),
                    ),
                    Text(
                      '${centerPosition.latitude.toStringAsFixed(5)}, ${centerPosition.longitude.toStringAsFixed(5)}',
                      style: const TextStyle(color: Color(0xFF94A3B8), fontSize: 9.5),
                    ),
                  ],
                ),
              ),

              const SizedBox(height: 6),

              // Animated Floating Pin Icon
              Icon(pinIcon, size: 44, color: themeColor),

              // Ground Shadow Reticle
              Container(
                width: 10,
                height: 5,
                decoration: BoxDecoration(
                  color: Colors.black.withAlpha(128),
                  borderRadius: BorderRadius.circular(10),
                ),
              ),
              const SizedBox(height: 48), // Offset to position pin tip at exact screen center
            ],
          ),
        ),

        // ── 2. Top Instructions Bar ─────────────────────────────────
        Positioned(
          top: 50,
          left: 20,
          right: 20,
          child: Container(
            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
            decoration: BoxDecoration(
              color: const Color(0xF20F172A),
              borderRadius: BorderRadius.circular(14),
              border: Border.all(color: Colors.white12),
              boxShadow: const [BoxShadow(color: Colors.black54, blurRadius: 12)],
            ),
            child: Row(
              children: [
                Icon(Icons.touch_app, color: themeColor, size: 20),
                const SizedBox(width: 10),
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        title,
                        style: const TextStyle(color: Colors.white, fontSize: 12.5, fontWeight: FontWeight.bold),
                      ),
                      const Text(
                        'حرك الخريطة وضع رأس المؤشر على النقطة المطلوبة بدقة',
                        style: TextStyle(color: Color(0xFF94A3B8), fontSize: 10),
                      ),
                    ],
                  ),
                ),
                IconButton(
                  icon: const Icon(Icons.close, color: Colors.white70, size: 18),
                  onPressed: onCancel,
                ),
              ],
            ),
          ),
        ),

        // ── 3. Bottom Confirmation Action Bar ────────────────────────
        Positioned(
          bottom: 24,
          left: 16,
          right: 16,
          child: Container(
            padding: const EdgeInsets.all(16),
            decoration: BoxDecoration(
              color: const Color(0xF50F172A),
              borderRadius: BorderRadius.circular(20),
              border: Border.all(color: themeColor, width: 1.5),
              boxShadow: const [BoxShadow(color: Colors.black87, blurRadius: 25)],
            ),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    const Text('الموقع المحدد حالياً:', style: TextStyle(color: Color(0xFF94A3B8), fontSize: 11)),
                    Text(
                      'المربع: ${milCoords.shortGrid} (${milCoords.zone}N)',
                      style: TextStyle(color: themeColor, fontSize: 11, fontWeight: FontWeight.bold),
                    ),
                  ],
                ),
                const SizedBox(height: 6),
                Container(
                  width: double.infinity,
                  padding: const EdgeInsets.all(8),
                  decoration: BoxDecoration(
                    color: const Color(0xFF1E293B),
                    borderRadius: BorderRadius.circular(10),
                  ),
                  child: Text(
                    milCoords.arabicFullFormat,
                    textAlign: TextAlign.center,
                    style: const TextStyle(color: Colors.white, fontSize: 12, fontWeight: FontWeight.bold),
                  ),
                ),
                const SizedBox(height: 12),
                Row(
                  children: [
                    Expanded(
                      flex: 3,
                      child: ElevatedButton.icon(
                        onPressed: onConfirm,
                        icon: const Icon(Icons.check, size: 18),
                        label: const Text('تثبيت وتأكيد هذا الموقع', style: TextStyle(fontSize: 13, fontWeight: FontWeight.bold)),
                        style: ElevatedButton.styleFrom(
                          backgroundColor: const Color(0xFF0071E3),
                          foregroundColor: Colors.white,
                          padding: const EdgeInsets.symmetric(vertical: 13),
                          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
                        ),
                      ),
                    ),
                    const SizedBox(width: 8),
                    Expanded(
                      flex: 1,
                      child: OutlinedButton(
                        onPressed: onCancel,
                        style: OutlinedButton.styleFrom(
                          foregroundColor: const Color(0xFF94A3B8),
                          side: const BorderSide(color: Colors.white24),
                          padding: const EdgeInsets.symmetric(vertical: 13),
                          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
                        ),
                        child: const Text('إلغاء', style: TextStyle(fontSize: 12)),
                      ),
                    ),
                  ],
                ),
              ],
            ),
          ),
        ),
      ],
    );
  }
}