<?php

namespace App\Http\Controllers;

use App\Models\Pelanggan;
use App\Models\Template;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class PelangganController extends Controller
{
    // 🔹 Tampilkan daftar pesanan (admin)
    public function index()
    {
        $pelanggans = Pelanggan::with('template')->latest()->paginate(10);
        return view('admin.pelanggans.index', compact('pelanggans'));
    }

    // 🔹 Tampilkan detail pesanan (admin)
    public function show($id)
    {
        $pelanggan = Pelanggan::with('template')->findOrFail($id);
        return view('admin.pelanggans.show', compact('pelanggan'));
    }

    // 🔹 Tampilkan detail pesanan berdasarkan invitation code
    public function showByCode($code)
    {
        $pelanggan = Pelanggan::with('template')
            ->where('invitation_code', $code)
            ->firstOrFail();

        return view('admin.pelanggans.show', compact('pelanggan'));
    }

    // 🔹 Pelanggan membuat pesanan (frontend user)
    public function store(Request $request)
    {
        $template = Template::findOrFail($request->input('template_id'));

        $rules = [
            'nama_pemesan' => 'required|string|max:255',
            'email'        => 'required|email',
            'no_tlpn'      => 'required|string|max:30',
            'template_id'  => 'required|exists:templates,id',
        ];

        // 🔸 Validasi dinamis dari JSON form template
        if ($template->form) {
            foreach ($template->form as $field => $options) {
                $rule = [];
                $rule[] = !empty($options['required']) ? 'required' : 'nullable';
                $rule[] = 'string';
                $rules["form.$field"] = implode('|', $rule);
            }
        }

        $validated = $request->validate($rules);

        // 🔸 Generate kode undangan unik
        $invitationCode = 'INV-' . strtoupper(Str::random(6));
        while (Pelanggan::where('invitation_code', $invitationCode)->exists()) {
            $invitationCode = 'INV-' . strtoupper(Str::random(6));
        }

        // 🔸 Simpan pesanan baru
        $pelanggan = Pelanggan::create([
            'nama_pemesan'    => $validated['nama_pemesan'],
            'email'           => $validated['email'],
            'no_tlpn'         => $validated['no_tlpn'],
            'template_id'     => $template->id,
            'form'            => $request->input('form'),
            'harga'           => $template->harga,
            'status'          => 'menunggu',
            'invitation_code' => $invitationCode,
        ]);

        return redirect()->route('pelanggans.show', $pelanggan->id)
            ->with('success', 'Pesanan berhasil dikirim, status menunggu konfirmasi admin.');
    }

    // 🔹 Update status pesanan (admin)
    public function update(Request $request, $id)
    {
        $pelanggan = Pelanggan::findOrFail($id);

        $validated = $request->validate([
            'status' => 'required|in:menunggu,diterima,ditolak',
        ]);

        $pelanggan->update($validated);

        return redirect()->back()->with('success', 'Status pesanan berhasil diperbarui.');
    }

    // 🔹 Hapus pesanan (admin)
    public function destroy($id)
    {
        $pelanggan = Pelanggan::findOrFail($id);
        $pelanggan->delete();

        return redirect()->route('admin.pelanggans.index')
            ->with('success', 'Pesanan berhasil dihapus.');
    }
}