<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Guest;
use App\Models\Pelanggan;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class GuestApiController extends Controller
{
    public function index(string $code)
    {
        $pelanggan = Pelanggan::where('kode_pelanggan', $code)->first();
        if (!$pelanggan) {
            return response()->json([
                'success' => false,
                'message' => 'Pelanggan tidak ditemukan.',
            ], 404);
        }
        if ($pelanggan->status !== 'diterima') {
            return response()->json([
                'success' => false,
                'message' => 'Pesanan belum diterima.',
            ], 400);
        }

        $guests = Guest::where('id_pelanggan', $pelanggan->id)->get();

        return response()->json([
            'success' => true,
            'data'    => $guests,
        ]);
    }

    public function store(Request $request)
    {
        try {
            $validated = $request->validate([
                'kode_pelanggan' => 'required|exists:pelanggans,kode_pelanggan',
                'nama_tamu' => 'required|string|max:255',
            ]);

            $pelanggan = Pelanggan::where('kode_pelanggan', $validated['kode_pelanggan'])->firstOrFail();

            $jumlah_tamu = Guest::where('id_pelanggan', $pelanggan->id)->count();
            $paket = $pelanggan->template->paket;
            if ($paket === 'starter' && $jumlah_tamu >= 10) {
                return response()->json([
                    'success' => false,
                    'message' => 'Batas tamu untuk paket starter adalah 10.',
                ], 400);
            } elseif ($paket === 'basic' && $jumlah_tamu >= 20) {
                return response()->json([
                    'success' => false,
                    'message' => 'Batas tamu untuk paket Basic adalah 20.',
                ], 400);
            } elseif ($paket === 'premium' && $jumlah_tamu >= 30) {
                return response()->json([
                    'success' => false,
                    'message' => 'Batas tamu untuk paket Premium adalah 30.',
                ], 400);
            }
            // cek anunya udah diterima
            if ($pelanggan->status !== 'diterima') {
                return response()->json([
                    'success' => false,
                    'message' => 'Pesanan belum diterima.',
                ], 400);
            }

            $guest = Guest::create([
                'id_pelanggan' => $pelanggan->id,
                'nama_tamu' => $validated['nama_tamu'],
                'kode_invitasi' => 'INV-' . strtoupper(Str::random(6)),
            ]);

            return response()->json([
                'success' => true,
                'data'    => $guest,
            ], 201);
        } catch (\Illuminate\Validation\ValidationException $e) {
            return response()->json([
                'success' => false,
                'message' => 'Validation failed',
                'errors'  => $e->errors(),
            ], 422);
        }
    }

    public function destroy(int $id)
    {
        $guest = Guest::find($id);

        if (!$guest) {
            return response()->json([
                'success' => false,
                'message' => 'Tamu tidak ditemukan.',
            ], 404);
        }

        try {
            $guest->delete();

            return response()->json([
                'success' => true,
                'message' => 'Tamu berhasil dihapus.',
            ], 200);
        } catch (\Exception $e) {
            return response()->json([
                'success' => false,
                'message' => 'Gagal menghapus tamu.',
            ], 500);
        }
    }

    // Ambil undangan berdasarkan invitation code
    public function getByInvitationCode($code)
    {
        $data = Guest::with('pelanggan.template')
            ->where('kode_invitasi', $code)
            ->first();

        if (!$data) {
            return response()->json([
                'success' => false,
                'message' => 'Data undangan tidak ditemukan.',
            ], 404);
        }

        return response()->json([
            'success' => true,
            'data'    => $data,
        ]);
    }
}