import 'dart:async';
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:shared_preferences/shared_preferences.dart';
import '../api.dart';

class DepositScreen extends StatefulWidget {
  final Map<String, dynamic> order;

  const DepositScreen({super.key, required this.order});

  @override
  State<DepositScreen> createState() => _DepositScreenState();
}

class _DepositScreenState extends State<DepositScreen> {
  String status = "waiting_handshake";
  Timer? timer;
  String? token;

  @override
  void initState() {
    super.initState();
    _init();
  }

  @override
  void dispose() {
    timer?.cancel();
    super.dispose();
  }

  Future<void> _init() async {
    final prefs = await SharedPreferences.getInstance();
    token = prefs.getString('api_token');

    timer = Timer.periodic(const Duration(seconds: 3), (_) {
      fetchStatus();
    });
  }

  Future<void> fetchStatus() async {
    if (token == null) return;

    try {
      final res = await http.get(
        Uri.parse(
         "https://taskmarket.store/api/agent/order-status.php?order_id=${widget.order['id']}&type=deposit"
        ),
        headers: {'Authorization': 'Bearer $token'},
      );

      final data = jsonDecode(res.body);

      if (!mounted) return;

      if (data['ok'] == true) {
        setState(() {
          status = data['status'];
        });
      }
    } catch (e) {
      print("ERROR: $e");
    }
  }

  Future<void> post(String path) async {
    if (token == null) return;

    await http.post(
Uri.parse(Api.post(path)),
headers: {'Authorization': 'Bearer $token'},      body: {'order_id': widget.order['id'].toString()},
    );
  }

  @override
  Widget build(BuildContext context) {
    final order = widget.order;

    return Scaffold(
      appBar: AppBar(title: const Text("إيداع")),
      body: Padding(
        padding: const EdgeInsets.all(20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text("ربحك: ${order['profit']} IQD"),
            const SizedBox(height: 10),
            Text("المبلغ: ${order['amount']} IQD"),
            const SizedBox(height: 10),
            Text("الطريقة: ${order['method']}"),
            const SizedBox(height: 10),
            Text("رقم الحساب: ${order['account_number']}"),
            const SizedBox(height: 20),

            /// الحالات

            if (status == "waiting_handshake")
              const Text("بانتظار الزبون..."),

            if (status == "user_ready")
              ElevatedButton(
                onPressed: () => post("/agent/handshake.php"),
                child: const Text("أنا مستعد"),
              ),

            if (status == "waiting_proof")
              const Text("بانتظار إثبات الدفع..."),

            if (status == "proof_uploaded")
              Column(
                crossAxisAlignment: CrossAxisAlignment.stretch,
                children: [
                  ElevatedButton(
                    onPressed: () =>
                        post("/agent/confirm-received.php"),
                    child: const Text("تأكيد الاستلام"),
                  ),
                  const SizedBox(height: 10),
                  ElevatedButton(
                    onPressed: () async {
                      final confirm = await showDialog(
                        context: context,
                        builder: (_) => AlertDialog(
                          title: const Text("تأكيد الإنكار"),
                          content: const Text(
                              "هل أنت متأكد من إنكار الاستلام؟"),
                          actions: [
                            TextButton(
                              onPressed: () =>
                                  Navigator.pop(context, false),
                              child: const Text("إلغاء"),
                            ),
                            ElevatedButton(
                              onPressed: () =>
                                  Navigator.pop(context, true),
                              child: const Text("نعم"),
                            ),
                          ],
                        ),
                      );

                      if (confirm != true) return;

                      await post("/agent/deny-received.php");

                      Navigator.pushReplacement(
                        context,
                        MaterialPageRoute(
                          builder: (_) => Scaffold(
                            appBar:
                                AppBar(title: const Text("تم التحويل")),
                            body: const Center(
                              child: Text(
                                "تم تحويل العملية إلى نزاع",
                                textAlign: TextAlign.center,
                              ),
                            ),
                          ),
                        ),
                      );
                    },
                    child: const Text("إنكار الاستلام"),
                  ),
                ],
              ),

            if (status == "completed")
              const Center(
                child: Text(
                  "تمت العملية بنجاح",
                  style: TextStyle(fontSize: 18),
                ),
              ),

            if (status == "disputed")
              const Center(
                child: Text(
                  "العملية قيد النزاع",
                  style: TextStyle(fontSize: 18),
                ),
              ),
          ],
        ),
      ),
    );
  }
}