<?php

namespace App\Http\Controllers\Api\Admin;

use App\Http\Controllers\Controller;
use App\Models\Guru;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class GuruController extends Controller
{
    public function index(Request $request)
    {
        $perPage = (int) $request->input('per_page', 7);
        $perPage = in_array($perPage, [5, 7]) ? $perPage : 7;

        $search = trim((string) $request->input('search', ''));

        $query = Guru::query()->orderBy('id', 'desc');

        if ($search !== '') {
            $query->where(function ($q) use ($search) {
                $q->where('id_guru', 'like', "%{$search}%")
                    ->orWhere('nama_guru', 'like', "%{$search}%");
            });
        }

        $guru = $query->paginate($perPage);

        return response()->json([
            'success' => true,
            'data' => $guru->items(),
            'current_page' => $guru->currentPage(),
            'last_page' => $guru->lastPage(),
            'per_page' => $guru->perPage(),
            'total' => $guru->total(),
            'from' => $guru->firstItem(),
            'to' => $guru->lastItem(),
        ], 200);
    }

    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'nama_guru' => 'required|string|max:255',
        ], [
            'nama_guru.required' => 'Nama guru tidak boleh kosong.',
        ]);

        if ($validator->fails()) {
            return response()->json(['success' => false, 'errors' => $validator->errors()], 422);
        }

        $guru = Guru::create($request->all());

        return response()->json([
            'success' => true,
            'message' => 'Guru ' . $guru->id_guru . ' berhasil ditambahkan.',
            'data' => $guru
        ], 201);
    }

    public function update(Request $request, $id)
    {
        $guru = Guru::find($id);

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

        $validator = Validator::make($request->all(), [
            'nama_guru' => 'required|string|max:255',
        ], [
            'nama_guru.required' => 'Update gagal, nama guru harus diisi.',
        ]);

        if ($validator->fails()) {
            return response()->json(['success' => false, 'errors' => $validator->errors()], 422);
        }

        $guru->update($request->all());

        return response()->json([
            'success' => true,
            'message' => 'Data ' . $guru->id_guru . ' berhasil diperbarui'
        ], 200);
    }

    public function destroy($id)
    {
        $guru = Guru::find($id);

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

        $guru->delete();

        return response()->json(['success' => true, 'message' => 'Data Guru berhasil dihapus'], 200);
    }
}