import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:e_commerce/const/AppColors.dart';
import 'package:e_commerce/const/rupiah.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:url_launcher/url_launcher.dart';

void deleteAllItems(String collectionName) {
  final userEmail = FirebaseAuth.instance.currentUser!.email;

  FirebaseFirestore.instance
      .collection(collectionName)
      .doc(userEmail)
      .collection("items")
      .get() // Dapatkan semua dokumen dalam sub-koleksi 'items'
      .then((snapshot) {
    for (var doc in snapshot.docs) {
      doc.reference.delete(); // Hapus setiap dokumen dalam sub-koleksi
    }
  }).catchError((error) {
    print("Error deleting items: $error"); // Tangani error saat menghapus
  });
}

String createOrderMessage(QuerySnapshot snapshot, int totalPrice, String note) {
  StringBuffer messageBuffer = StringBuffer("Halo  minTIers aku\n mau pesan nih\n");
  messageBuffer.write("\n");
  messageBuffer.write("Rincian pesanan:\n");
  int itemIndex = 1; // Untuk menjaga urutan item

  // Tambahkan setiap item ke pesan dengan format yang diinginkan
  snapshot.docs.forEach((doc) {
    String itemName = doc['name']; // Nama item
    String itemPrice = (int.tryParse(doc['price']) ?? 0).toRupiah(); // Harga item

    // Tambahkan item ke pesan
    messageBuffer.write("${itemIndex}. $itemName : $itemPrice\n");

    // Tingkatkan indeks untuk item berikutnya
    itemIndex++;
  });
  messageBuffer.write("\n");
  messageBuffer.write("total pesanan: ${totalPrice.toRupiah()}\n");
  messageBuffer.write("Pembayaran: Tunai\n");
  messageBuffer.write("\n");
  messageBuffer.write("Note: $note\n");
  messageBuffer.write("\n");
  messageBuffer.write("Tolong segera disiapin yaa dan infokan estimasi bisa diambilnya juga\nTerimakasih minTIers:))\n");

  return messageBuffer.toString();
}

Future<void> updateStock(QuerySnapshot snapshot) async {
  for (QueryDocumentSnapshot element in snapshot.docs) {
    final data = await FirebaseFirestore.instance.collection('products').where('product-name', isEqualTo: element['name']).get();
    final docs = data.docs.firstOrNull;
    if (docs != null) {
      print(docs.id);
      final data = docs.data();
      final updatedStock = data['stock'] - 1;
      await FirebaseFirestore.instance.collection('products').doc(docs.id).update({'stock': updatedStock});
    }
  }
}

Future<void> openWhatsApp(String phone, String message) async {
  final whatsappUrl = Uri.parse("whatsapp://send?phone=$phone&text=$message");

  if (!await launchUrl(whatsappUrl, mode: LaunchMode.externalApplication)) {
    throw Exception("Could not launch WhatsApp");
  }
}

void showOrderDialog(BuildContext context, QuerySnapshot snapshot, int totalPrice) {
  TextEditingController noteController = TextEditingController();

  showDialog(
    context: context,
    builder: (BuildContext context) {
      return AlertDialog(
        title: Text("Tambahkan Catatan"),
        content: TextField(
          controller: noteController,
          decoration: InputDecoration(
            hintText: "Masukkan catatan untuk pesanan",
          ),
        ),
        actions: [
          TextButton(
            onPressed: () {
              Navigator.of(context).pop();
            },
            child: Text("Batal"),
          ),
          TextButton(
            onPressed: () async {
              // Ambil catatan yang dimasukkan pengguna
              final note = noteController.text;

              // Buat pesan dengan catatan yang dimasukkan
              final orderMessage = createOrderMessage(snapshot, totalPrice, note);

              await updateStock(snapshot);

              // Buka WhatsApp dengan pesan yang telah disiapkan
              openWhatsApp("+6289523392734", orderMessage);
              deleteAllItems("users-cart-items");

              // Tutup dialog setelah menekan OK
              Navigator.of(context).pop();
            },
            child: Text("OK"),
          ),
        ],
      );
    },
  );
}