<?php

namespace App\Http\Requests\Admin;

use App\Models\KnowledgeItem;
use Illuminate\Foundation\Http\FormRequest;

class StoreKnowledgeItemRequest extends FormRequest
{
    public function authorize(): bool
    {
        return $this->user()->canManageDocuments();
    }

    public function rules(): array
    {
        return [
            'category_id'    => ['required', 'integer', 'exists:categories,id'],
            'item_type'      => ['required', 'in:' . implode(',', array_keys(KnowledgeItem::typeLabels()))],
            'title'          => ['required', 'string', 'max:500'],
            'content'        => ['required', 'string', 'max:10000'],
            'content_short'  => ['nullable', 'string', 'max:500'],
            'tags'           => ['nullable', 'array'],
            'tags.*'         => ['string', 'max:50'],
            'language'       => ['nullable', 'in:ms,en'],
            'effective_date' => ['nullable', 'date'],
            'expiry_date'    => ['nullable', 'date'],
            'is_active'      => ['boolean'],
            'is_public'      => ['boolean'],
        ];
    }

    public function messages(): array
    {
        return [
            'category_id.required' => 'Kategori wajib dipilih.',
            'item_type.required'   => 'Jenis item wajib dipilih.',
            'item_type.in'         => 'Jenis item tidak sah.',
            'title.required'       => 'Tajuk/soalan wajib diisi.',
            'content.required'     => 'Kandungan/jawapan wajib diisi.',
            'content.max'          => 'Kandungan terlalu panjang (had: 10,000 karakter).',
        ];
    }
}