<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateArticleTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        if (!Schema::hasTable('article_categories')) {
            Schema::create('article_categories', function (Blueprint $table) {
                $table->id();
                $table->string('name')->comment('名称');
                $table->string('key')->unique()->nullable()->comment('key');
                $table->unsignedTinyInteger('is_recommend')->default(0)->comment('推荐状态');
                $table->unsignedTinyInteger('is_enable')->default(1)->comment('可用状态');
                $table->unsignedBigInteger('parent_id')->default(0)->comment('上级ID');
                $table->unsignedInteger('level')->default(1)->comment('层级');
                $table->string('path')->default('-')->comment('所有的父级ID');
                $table->unsignedInteger('sort')->default(0)->comment('排序 desc');
                $table->string('remarks')->nullable()->comment('备注');

                $table->text('ext')->nullable()->comment('扩展字段，可用于SEO配置等');

                $table->timestamps();
            });
        }

        if (!Schema::hasTable('articles')) {
            Schema::create('articles', function (Blueprint $table) {
                $table->id();
                $table->unsignedBigInteger('category_id')->nullable()->comment('分类ID');
                $table->string('category_path')->default('-')->comment('分类 path');
                $table->unsignedBigInteger('admin_user_id')->comment('创建人');
                $table->string('title')->comment('文章标题');
                $table->string('sub_title')->nullable()->comment('副标题');
                $table->string('author')->nullable()->comment('作者');
                $table->string('cover')->nullable()->comment('封面');
                $table->longText('content')->nullable()->comment('文章内容');
                $table->timestamp('published_at')->nullable()->comment('发布时间');
                $table->unsignedInteger('sort')->default(1)->comment('排序 desc');
                $table->string('remarks')->nullable()->comment('备注');

                $table->unsignedTinyInteger('is_recommend')->default(0)->comment('推荐状态');
                $table->unsignedTinyInteger('is_enable')->default(1)->comment('可用状态');

                $table->text('ext')->nullable()->comment('扩展字段，可用于SEO配置等');

                $table->timestamps();
            });
        }
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('articles');
        Schema::dropIfExists('article_categories');
    }
};