<?php

namespace App\Http\Controllers;

use App\Models\Transaksi;
use App\Models\ItemTransaksi;
use App\Models\Item;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class TransaksiController extends Controller
{
    // List semua transaksi
    public function index()
    {
        $limit = request()->query('limit', null);
        $query = Transaksi::with(['kasir', 'sales', 'items.item.produk'])->latest();
        if ($limit) {
            $query->limit((int)$limit);
        }
        $transaksi = $query->get();
        $transaksi = Transaksi::with(['kasir', 'sales', 'items.item.produk'])->latest()->limit(100)->get();
        return response()->json($transaksi);
    }

    // Detail transaksi by ID
    public function show($id)
    {
        $transaksi = Transaksi::with(['kasir', 'sales', 'items.item.produk.foto'])->findOrFail($id);
        return response()->json($transaksi);
    }

    // Membuat transaksi baru
    public function store(Request $request)
    {
        $request->validate([
            'id_kasir'     => 'required|exists:akun,id',
            'id_sales'     => 'nullable|exists:sales,id',
            'nama_sales'   => 'nullable|string',
            'no_hp'        => 'nullable|string',
            'alamat'       => 'nullable|string',
            'ongkos_bikin' => 'nullable|numeric',
            'total_harga'  => 'required|numeric',
            'items'        => 'required|array',
            'items.*.id_item'    => 'required|exists:item,id',
            'items.*.harga_deal' => 'required|numeric',
        ]);

        DB::beginTransaction();
        try {
            $transaksi = Transaksi::create([
                'id_kasir'     => $request->id_kasir,
                'id_sales'     => $request->id_sales,
                'nama_sales'   => $request->nama_sales,
                'no_hp'        => $request->no_hp,
                'alamat'       => $request->alamat,
                'ongkos_bikin' => $request->ongkos_bikin,
                'total_harga'  => $request->total_harga,
            ]);

            foreach ($request->items as $it) {
                ItemTransaksi::create([
                    'id_transaksi' => $transaksi->id,
                    'id_item'      => $it['id_item'],
                    'harga_deal'   => $it['harga_deal'],
                ]);

                Item::where('id', $it['id_item'])->update(['is_sold' => true]);
            }

            DB::commit();
            return response()->json($transaksi->load('items'), 201);

        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json(['error' => $e->getMessage()], 500);
        }
    }

    // Update transaksi
    public function update(Request $request, $id)
    {
        $transaksi = Transaksi::findOrFail($id);

        $transaksi->update($request->only([
            'id_sales', 'nama_sales', 'no_hp', 'alamat', 'ongkos_bikin', 'total_harga'
        ]));

        return response()->json($transaksi);
    }

    // Hapus transaksi
    public function destroy($id)
    {
        $transaksi = Transaksi::findOrFail($id);
        $transaksi->delete();

        return response()->json(['message' => 'Transaksi berhasil dihapus']);
    }
}