<?php

namespace App\Http\Requests\Api;

use Carbon\Carbon;
use Illuminate\Contracts\Validation\Validator;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Exceptions\HttpResponseException;

/**
 * 決済情報更新リクエストバリデーション
 */
class PaymentUpdateRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    /**
     * バリデーションルール
     */
    public function rules(): array
    {
        return [
            'SyunoRecvNum' => ['required', 'string', 'max:20', 'regex:/^[a-zA-Z0-9]+$/'],
            'cancelFlag' => ['nullable'],
            'SyunoPayLimit' => ['nullable', 'string', 'regex:/^\d{12}$/'],
            'SyunoPayAmount' => ['nullable', 'integer', 'min:1'],
            'SyunoNameKanji' => ['nullable', 'string', 'max:40'],
            'SyunoNameKana' => ['nullable', 'string', 'max:40'],
            'SyunoTel' => ['nullable', 'string', 'max:13', 'regex:/^[0-9\\-]+$/'],
            'SyunoFree1' => ['nullable', 'string', 'max:32'],
            'SyunoFree2' => ['nullable', 'string', 'max:32'],
            'SyunoFree3' => ['nullable', 'string', 'max:32'],
            'SyunoFree4' => ['nullable', 'string', 'max:32'],
            'SyunoFree5' => ['nullable', 'string', 'max:32'],
            'SyunoFree6' => ['nullable', 'string', 'max:32'],
            'SyunoFree7' => ['nullable', 'string', 'max:32'],
            'SyunoFree8' => ['nullable', 'string', 'max:32'],
            'SyunoFree9' => ['nullable', 'string', 'max:60'],
            'SyunoFree10' => ['nullable', 'string', 'max:60'],
            'SyunoFree11' => ['nullable', 'string', 'max:60'],
            'SyunoFree12' => ['nullable', 'string', 'max:60'],
            'SyunoFree13' => ['nullable', 'string', 'max:60'],
            'SyunoFree14' => ['nullable', 'string', 'max:60'],
            'SyunoFree15' => ['nullable', 'string', 'max:60'],
            'SyunoFree16' => ['nullable', 'string', 'max:60'],
            'SyunoFree17' => ['nullable', 'string', 'max:60'],
            'SyunoFree18' => ['nullable', 'string', 'max:60'],
            'SyunoFree19' => ['nullable', 'string', 'max:42'],
            'SyunoFree20' => ['nullable', 'string', 'max:12'],
            'SyunoFree21' => ['nullable', 'string', 'max:11'],
        ];
    }

    /**
     * バリデーション失敗時のJSONエラーレスポンス
     */
    protected function failedValidation(Validator $validator): void
    {
        throw new HttpResponseException(response()->json([
            'error' => [
                'code' => 'INVALID_REQUEST',
                'message' => $validator->errors()->first(),
            ]
        ], 400));
    }

    /**
     * 追加バリデーション（支払期限の範囲チェック）
     */
    public function withValidator($validator): void
    {
        $validator->after(function ($validator) {
            $payLimit = $this->input('SyunoPayLimit');
            if ($payLimit === null) {
                return;
            }

            try {
                $dt = Carbon::createFromFormat('YmdHi', $payLimit, 'Asia/Tokyo');
                $errors = Carbon::getLastErrors() ?: ['warning_count' => 0, 'error_count' => 0];
                if (($errors['warning_count'] ?? 0) > 0 || ($errors['error_count'] ?? 0) > 0) {
                    $validator->errors()->add('SyunoPayLimit', 'SyunoPayLimitの日時が不正です。');
                    return;
                }
            } catch (\Throwable) {
                $validator->errors()->add('SyunoPayLimit', 'SyunoPayLimitの日時が不正です。');
                return;
            }

            $now = Carbon::now('Asia/Tokyo');
            $max = $now->copy()->addDays(365);

            if ($dt->lessThanOrEqualTo($now)) {
                $validator->errors()->add('SyunoPayLimit', 'SyunoPayLimitは現在時刻より未来を指定してください。');
            } elseif ($dt->greaterThan($max)) {
                $validator->errors()->add('SyunoPayLimit', 'SyunoPayLimitは365日以内で指定してください。');
            }
        });
    }
}