<?php

namespace Modules\SystemTool\Http\Requests;

use Illuminate\Validation\Rule;
use Illuminate\Validation\Rules\Exists;
use Modules\Common\Http\Requests\BaseFormRequest;
use Modules\SystemTool\Models\SysCategoryModel;
use Modules\SystemTool\Models\SysFileModel;

class SysCarouselFormRequest extends BaseFormRequest
{
    protected $stopOnFirstFailure = true;

    public function rules(): array
    {
        return [
            'title' => 'required|string|max:100',
            'image_id' => ['required', 'integer', new Exists(SysFileModel::class, 'id')],
            'link_type' => 'nullable|integer|in:0,1',
            'link' => [
                'nullable',
                'string',
                'max:500',
                Rule::requiredIf(fn () => $this->input('link_type', 0) == 0),
            ],
            'category_id' => [
                'nullable',
                'integer',
                Rule::requiredIf(fn () => $this->input('link_type', 0) == 1),
                new Exists(SysCategoryModel::class, 'id'),
            ],
            'status' => 'nullable|integer|in:0,1',
            'sort' => 'nullable|integer',
        ];
    }

    public function messages(): array
    {
        return [
            'title.required' => '轮播图标题是必填的',
            'title.max' => '轮播图标题不能超过 :max 个字符',
            'image_id.required' => '轮播图图片是必填的',
            'link_type.in' => '跳转类型只能是 0（链接）或 1（分类）',
            'link.required' => '链接模式下跳转链接是必填的',
            'link.max' => '跳转链接不能超过 :max 个字符',
            'category_id.required' => '分类模式下请选择分类',
            'status.in' => '状态值只能是 0（启用）或 1（禁用）',
            'sort.integer' => '排序必须是整数',
        ];
    }
}