<?php

namespace App\Http\Requests\Koperasi;

use App\Services\Koperasi\WilayahKoperasiService;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;
use Illuminate\Validation\Validator;

trait ValidatesWilayahKoperasi
{
    protected function wilayahRules(bool $profile = false): array
    {
        $tables = ['kabupaten_kota_id' => 'master_kabupaten_kota', 'kecamatan_id' => 'master_kecamatan', 'desa_kelurahan_id' => 'master_desa_kelurahan'];
        if ($profile) {
            $tables = ['provinsi_id' => 'master_provinsi', ...$tables];
        }
        $available = app(WilayahKoperasiService::class)->available();
        $rules = [];
        foreach ($tables as $field => $table) {
            $rules[$field] = ['bail', Rule::prohibitedIf(! $available), 'nullable', 'integer', Rule::exists($table, 'id')->whereNull('deleted_at')];
            if ($profile) {
                $others = array_diff(array_keys($tables), [$field]);
                $rules[$field][] = Rule::requiredIf(fn () => collect($others)->contains(fn ($other) => $this->filled($other)));
            }
        }

        return $rules;
    }

    protected function wilayahAttributes(): array
    {
        return ['provinsi_id' => 'Provinsi', 'kabupaten_kota_id' => 'Kabupaten/Kota', 'kecamatan_id' => 'Kecamatan', 'desa_kelurahan_id' => 'Desa/Kelurahan'];
    }

    public function after(): array
    {
        return [function (Validator $validator) {
            $labels = $this->wilayahAttributes();
            if ($validator->errors()->hasAny(array_keys($labels))) {
                return;
            }
            foreach ([
                ['kabupaten_kota_id', 'provinsi_id', 'master_kabupaten_kota'],
                ['kecamatan_id', 'kabupaten_kota_id', 'master_kecamatan'],
                ['desa_kelurahan_id', 'kecamatan_id', 'master_desa_kelurahan'],
            ] as [$child, $parent, $table]) {
                if ($parent === 'provinsi_id' && ! $this instanceof StorePengurusKoperasiRequest) {
                    continue;
                }
                if ($this->filled($child) && $this->filled($parent)
                    && ! DB::table($table)->where('id', $this->input($child))->where($parent, $this->input($parent))->exists()) {
                    $validator->errors()->add($child, 'Pilihan '.$labels[$child].' tidak sesuai dengan '.$labels[$parent].'.');
                }
            }
        }];
    }
}