<?php

namespace App\Http\Requests\Admin;

use App\Enums\StrategyKey;
use App\Http\Requests\FormRequest;
use App\Models\Strategy;
use Illuminate\Support\Collection;

class StrategyRequest extends FormRequest
{
    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        $checkUrl = function ($attribute, $value, $fail) {
            if ($this->input('key') == StrategyKey::Local) {
                $folders = ['i', 'fonts', 'css', 'js'];
                $symlink = Strategy::getRootPath($value);
                if (! $symlink) {
                    return $fail('访问域名缺少根路径');
                }
                if (in_array($symlink, $folders)) {
                    return $fail('系统保留路径');
                }
                if (false !== strpbrk($symlink, "\\/?%*:|\"<>")) {
                    return $fail('根路径名称不符合规则');
                }
                // 修改时单独判断
                if ($this->method() === 'PUT') {
                    $symlinks = Strategy::query()
                        ->where('id', '<>', $this->route('id'))
                        ->pluck('configs')
                        ->transform(function (Collection $configs) {
                            return Strategy::getRootPath($configs->get('url'));
                        })->merge($folders)->values()->toArray();
                    if (in_array($symlink, $symlinks)) {
                        return $fail('根路径已经存在');
                    }
                } else {
                    if (realpath(public_path($symlink))) {
                        return $fail('根路径已经存在');
                    }
                }
            }
        };

        return [
            'groups' => 'array',
            'name' => 'required|max:60',
            'intro' => 'max:2000',
            'key' => 'required|integer',
            'configs.root' => ['max:1000', function ($attribute, $value, $fail) {
                if ($value) {
                    if (! is_dir($value)) {
                        return $fail('储存路径不存在');
                    }
                    if (! is_writeable($value)) {
                        return $fail('储存路径没有写入权限');
                    }
                }
            }],
            'configs.url' => ['required', 'url', $checkUrl],
        ];
    }

    public function attributes()
    {
        return [
            'name' => '名称',
            'intro' => '简介',
            'key' => '策略',
            'configs.root' => '储存路径',
            'configs.url' => '访问域名',
        ];
    }
}