<?php

namespace App\Http\Controllers\Parking\Setup\Petugas;

use App\Http\Controllers\Controller;
use App\Models\Pegawai;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;

class MasterPetugasController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        $petugas = Pegawai::orderBy('nomer')->get();
        $levels = DB::table('level_user')->orderBy('level_code')->get();

        return view('setup.petugas.petugas', compact('petugas', 'levels'));
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $data = $request->validate($this->rules(), $this->messages());
        // Normalisasi: string kosong jadi null (kolom date/int tidak terima '').
        $data = array_map(fn ($v) => $v === '' ? null : $v, $data);

        $pegawai = Pegawai::create(collect($data)->except('foto')->all());

        if ($request->hasFile('foto')) {
            $this->saveFoto($pegawai->id, $request->file('foto'));
        }

        return response()->json([
            'success' => true,
            'message' => 'Petugas berhasil ditambahkan.',
            'data' => $pegawai->fresh()->makeHidden('foto'),
        ], 201);
    }

    /**
     * Display the specified resource (tanpa binary foto).
     */
    public function show($id)
    {
        $pegawai = Pegawai::select(
            'id', 'nomer', 'nama', 'alamat', 'tgl_lahir', 'tgl_masuk',
            'username', 'password', 'bisalogin', 'status', 'jeniskelamin',
            'agama', 'telepon', 'alamat_lahir', 'alamat_sekarang', 'nip',
            'statusabsen', 'level_pegawai', 'email'
        )->findOrFail($id);

        $hasFoto = (bool) DB::table('pegawai')->where('id', $id)->whereNotNull('foto')->exists();

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

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, $id)
    {
        $pegawai = Pegawai::findOrFail($id);

        $data = $request->validate($this->rules($pegawai->id), $this->messages());
        // Normalisasi: string kosong jadi null (kolom date/int tidak terima '').
        $data = array_map(fn ($v) => $v === '' ? null : $v, $data);

        // Password kosong = tidak diubah (tetap pakai yang lama, plain-text ikut gaya legacy).
        if (empty($data['password'])) {
            unset($data['password']);
        }

        $pegawai->update(collect($data)->except('foto')->all());

        if ($request->hasFile('foto')) {
            $this->saveFoto($pegawai->id, $request->file('foto'));
        }

        return response()->json([
            'success' => true,
            'message' => 'Petugas berhasil diperbarui.',
            'data' => $pegawai->fresh()->makeHidden('foto'),
        ]);
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy($id)
    {
        Pegawai::findOrFail($id)->delete();

        return response()->json(['success' => true, 'message' => 'Petugas berhasil dihapus.']);
    }

    /**
     * Stream foto dari kolom bytea. Fallback ke placeholder bila kosong.
     */
    public function foto($id)
    {
        $row = DB::table('pegawai')->select('foto')->where('id', $id)->first();

        $binary = $row?->foto;
        if (is_resource($binary)) {
            $binary = stream_get_contents($binary);
        }

        if (empty($binary)) {
            return response()->file(public_path('images/no-image.jpg'));
        }

        $mime = (new \finfo(FILEINFO_MIME_TYPE))->buffer($binary) ?: 'image/jpeg';

        return response($binary, 200, [
            'Content-Type' => $mime,
            'Content-Length' => strlen($binary),
            'Cache-Control' => 'private, max-age=3600',
        ]);
    }

    protected function messages(): array
    {
        return [
            'nomer.unique' => 'Nomer sudah dipakai petugas lain, ganti dengan yang unik.',
            'username.unique' => 'Username sudah dipakai petugas lain, ganti dengan yang unik.',
            'foto.image' => 'File foto harus berupa gambar.',
            'foto.max' => 'Ukuran foto maksimal 2MB.',
        ];
    }

    protected function rules(?int $ignoreId = null): array
    {
        $uniqueUsername = Rule::unique('pegawai', 'username');
        $uniqueNomer = Rule::unique('pegawai', 'nomer');
        if ($ignoreId) {
            $uniqueUsername->ignore($ignoreId, 'id');
            $uniqueNomer->ignore($ignoreId, 'id');
        }

        return [
            'nomer' => ['required', 'string', 'max:50', $uniqueNomer],
            'nama' => 'required|string|max:50',
            'username' => ['required', 'string', 'max:50', $uniqueUsername],
            // Plain-text ikut gaya data legacy. Wajib saat tambah, opsional saat ubah.
            'password' => ($ignoreId ? 'nullable' : 'required') . '|string|max:50',
            'level_pegawai' => 'nullable|string|exists:level_user,level_code',
            'bisalogin' => 'nullable|integer|in:0,1',
            'status' => 'nullable|integer|in:0,1',
            'jeniskelamin' => 'nullable|integer|in:0,1',
            'statusabsen' => 'nullable|integer|in:0,1',
            'agama' => 'nullable|string|max:50',
            'telepon' => 'nullable|string|max:255',
            'alamat' => 'nullable|string|max:100',
            'alamat_lahir' => 'nullable|string|max:255',
            'alamat_sekarang' => 'nullable|string|max:255',
            'nip' => 'nullable|string|max:50',
            'email' => 'nullable|string|max:64',
            'tgl_lahir' => 'nullable|date',
            'tgl_masuk' => 'nullable|date',
            'foto' => 'nullable|image|mimes:jpg,jpeg,png,bmp|max:2048',
        ];
    }

    /**
     * Simpan binary ke kolom bytea tanpa nambah kolom baru.
     * bin2hex menghindari masalah escaping bytea.
     */
    protected function saveFoto(int $id, $file): void
    {
        $binary = file_get_contents($file->getRealPath());

        DB::table('pegawai')->where('id', $id)->update([
            'foto' => DB::raw("decode('" . bin2hex($binary) . "', 'hex')"),
        ]);
    }
}