<?php

namespace App\Http\Requests\Kalori;

use Illuminate\Contracts\Validation\Validator;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Exceptions\HttpResponseException;
use Illuminate\Support\Facades\DB;

class RequestKalori extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     */
      public function rules(): array
    {
        return [
            'data' => 'required|array|min:1',
            'data.*.nilai_kalori' => 'required'
        ];
    }

    public function messages(){
       return [
            'data.array' => 'Format data harus berupa array',
            'data.min' => 'Minimal harus ada satu data klasifikasi menu',
            'data.*.nilai_kalori.required' => 'Nilai Kalori Menu wajib diisi',
        ];
    }

    protected function failedValidation(Validator $validator){
        throw new HttpResponseException(
            response()->json([
                'status'    => 'VALIDATION_FAILED',
                'message'   => 'Validasi Gagal',
                'errors'    => $validator->errors()->messages(),
            ], 422)
        );
    }

     public function withValidator($validator){
        $validator->after(function ($validator){
            $namaListAsli = collect($this->input('data'))->pluck('nilai_kalori')->filter();
                $namaListLower = $namaListAsli->map(fn($n) => strtolower(trim($n)));
                $duplicates = $namaListLower->duplicates();

                    if ($duplicates->isNotEmpty()) {
                        foreach ($namaListAsli as $index => $nama) {
                            if ($duplicates->contains(strtolower(trim($nama)))) {
                                $validator->errors()->add("data.$index.nilai_kalori", "Nama '$nama' duplikat dalam input.");
                            }
                        }
                    }
                $namaList = $namaListAsli->map(fn($n) => strtolower(trim($n)));

                if($namaList->isEmpty()) return;

                $exists = DB::connection('dbOrderGizi')
                    ->table('public.kalori')
                    ->where('statusenabled', true)
                    ->whereIn(DB::raw('LOWER(nilai_kalori)'), $namaList->toArray())
                    ->selectRaw('LOWER(nilai_kalori) as kalori')
                    ->pluck('kalori')
                    ->toArray();

                foreach ($namaListAsli as $index => $nama) {
                    $lowerNama = strtolower(trim($nama));
                    if(in_array($lowerNama, $exists)){
                        $validator->errors()->add("data.$index.nama_karbohidrat", "Nama '$nama' Sudah digunakan.");
                    }
                }
        });
    }
}