<?php

namespace App\Http\Requests\Admin;

use App\Models\Competition;
use App\Models\FormSchemaDefinition;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;
use Illuminate\Validation\Validator;

class UpdateCompetitionRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    public function withValidator(Validator $validator): void
    {
        $validator->after(function (Validator $v): void {
            $routeCompetition = $this->route('competition');
            if (! $routeCompetition instanceof Competition) {
                return;
            }

            $openInput = $this->input('signup_open_at');
            $closeInput = $this->input('signup_close_at');
            $open = $openInput ?? $routeCompetition->signup_open_at?->toIso8601String();
            $close = $closeInput ?? $routeCompetition->signup_close_at?->toIso8601String();

            if ($open && $close && strtotime((string) $close) < strtotime((string) $open)) {
                $v->errors()->add(
                    'signup_close_at',
                    '报名截止时间须不早于开始时间。',
                );
            }

            // 勿把 post_close 写成 settings.post_close_file_edit.* 规则：
            // Laravel validated() 会只保留有嵌套规则的键，导致 success_notice / review_portal 被剥掉，
            // 关闭补传时甚至整段 settings 从 validated 结果中消失、库内旧值无法覆盖。
            $this->validatePostCloseFileEditSettings($v);
        });
    }

    /**
     * @return array<string, mixed>
     */
    public function rules(): array
    {
        $competition = $this->route('competition');
        assert($competition instanceof Competition);

        return [
            'slug' => [
                'sometimes',
                'string',
                'max:128',
                'regex:/^(?!.*\s)[\p{L}\p{N}\-_·]+$/u',
                Rule::unique('competitions', 'slug')->ignore($competition->id),
            ],
            'name' => ['sometimes', 'string', 'max:200'],
            'description' => ['sometimes', 'nullable', 'string'],
            'pledge_title' => ['sometimes', 'nullable', 'string', 'max:200'],
            'pledge_title_en' => ['sometimes', 'nullable', 'string', 'max:200'],
            'pledge_subtitle' => ['sometimes', 'nullable', 'string', 'max:500'],
            'pledge_subtitle_en' => ['sometimes', 'nullable', 'string', 'max:500'],
            'pledge_content_html' => ['sometimes', 'nullable', 'string', 'max:500000'],
            'pledge_content_html_en' => ['sometimes', 'nullable', 'string', 'max:500000'],
            'status' => ['sometimes', 'string', 'max:32', Rule::in(Competition::STATUSES)],
            'published' => ['sometimes', 'boolean'],
            'signup_open_at' => ['sometimes', 'nullable', 'date'],
            'signup_close_at' => ['sometimes', 'nullable', 'date'],
            'form_schema_id' => [
                'sometimes',
                'nullable',
                'integer',
                Rule::exists('form_schema_definitions', 'id')->where('purpose', FormSchemaDefinition::PURPOSE_SIGNUP),
            ],
            'review_form_schema_id' => [
                'sometimes',
                'nullable',
                'integer',
                Rule::exists('form_schema_definitions', 'id')->where('purpose', FormSchemaDefinition::PURPOSE_REVIEW),
            ],
            'audience_form_schema_id' => [
                'sometimes',
                'nullable',
                'integer',
                Rule::exists('form_schema_definitions', 'id')->where('purpose', FormSchemaDefinition::PURPOSE_AUDIENCE),
            ],
            'branding_json' => ['sometimes', 'nullable', 'array'],
            'settings' => ['sometimes', 'nullable', 'array'],
            'scoring_rules_json' => ['sometimes', 'nullable', 'array'],
        ];
    }

    /**
     * @return array<string, string>
     */
    public function attributes(): array
    {
        return [
            'slug' => '访问地址',
        ];
    }

    /**
     * @return array<string, string>
     */
    public function messages(): array
    {
        return [
            'slug.regex' => ':attribute 仅可为中文、字母、数字、横线、下划线或中点，且不能含空格。',
        ];
    }

    private function validatePostCloseFileEditSettings(Validator $v): void
    {
        if (! $this->exists('settings')) {
            return;
        }

        $settings = $this->input('settings');
        if ($settings === null) {
            return;
        }
        if (! is_array($settings)) {
            $v->errors()->add('settings', '扩展设置格式无效');

            return;
        }

        if (! array_key_exists('post_close_file_edit', $settings)) {
            return;
        }

        $cfg = $settings['post_close_file_edit'];
        if ($cfg === null) {
            return;
        }
        if (! is_array($cfg)) {
            $v->errors()->add('settings.post_close_file_edit', '截止后补传附件配置格式无效');

            return;
        }

        $enabled = $cfg['enabled'] ?? false;
        $isEnabled = $enabled === true || $enabled === 1 || $enabled === '1' || $enabled === 'true';
        if (! $isEnabled) {
            return;
        }

        $mobiles = $cfg['user_mobiles'] ?? null;
        if (! is_array($mobiles) || count($mobiles) === 0) {
            $v->errors()->add('settings.post_close_file_edit.user_mobiles', '开启截止后补传附件后，请至少填写一个登录手机号');

            return;
        }

        foreach ($mobiles as $i => $mobile) {
            $normalized = Competition::normalizeAllowlistMobile($mobile);
            if ($normalized === '' || preg_match('/^1[3-9]\d{9}$/', $normalized) !== 1) {
                $v->errors()->add(
                    "settings.post_close_file_edit.user_mobiles.{$i}",
                    '补传附件白名单手机号须为11位中国大陆手机号',
                );
            }
        }
    }
}