<?php

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

return new class extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        // 首页活动专区表（结构同轮播图表，多一个描述字段）
        if (! Schema::hasTable('sys_activity')) {
            Schema::create('sys_activity', function (Blueprint $table) {
                $table->increments('id');
                $table->string('title', 100)->comment('活动标题');
                $table->integer('image_id')->comment('活动图片信息');
                $table->string('link', 500)->nullable()->default('')->comment('跳转链接');
                $table->unsignedTinyInteger('link_type')->default(0)->comment('跳转类型：0=链接，1=分类');
                $table->integer('category_id')->nullable()->default(0)->comment('分类ID（link_type=1 时生效）');
                $table->text('description')->nullable()->comment('活动描述');
                $table->unsignedTinyInteger('status')->default(0)->comment('状态：0=启用，1=禁用');
                $table->integer('sort')->default(0)->comment('排序（数字越大越靠前）');
                $table->timestamps();
                $table->comment('首页活动专区管理表');
            });
        }

        $this->insertMenuRules();
    }

    /**
     * Reverse the migrations.
     */
    public function down(): void
    {
        Schema::dropIfExists('sys_activity');

        $this->deleteMenuRules();
    }

    /**
     * 向权限菜单表插入「活动专区」菜单（幂等，已存在则跳过）
     */
    protected function insertMenuRules(): void
    {
        if (! Schema::hasTable('sys_rule')) {
            return;
        }

        $exists = DB::table('sys_rule')->where('key', 'system.activity')->exists();
        if ($exists) {
            return;
        }

        $date = date('Y-m-d H:i:s');

        $menuId = DB::table('sys_rule')->insertGetId([
            'parent_id' => 0,
            'type' => 'route',
            'key' => 'system.activity',
            'name' => '活动专区管理',
            'path' => '/system/activity',
            'icon' => '',
            'order' => 0,
            'local' => 'menu.system.activity',
            'status' => 1,
            'hidden' => 1,
            'link' => 0,
            'created_at' => $date,
            'updated_at' => $date,
        ]);

        $children = [
            ['name' => '查询活动列表', 'key' => 'system.activity.query'],
            ['name' => '新增活动', 'key' => 'system.activity.create'],
            ['name' => '编辑活动', 'key' => 'system.activity.update'],
            ['name' => '删除活动', 'key' => 'system.activity.delete'],
        ];

        foreach ($children as $i => $child) {
            DB::table('sys_rule')->insert([
                'parent_id' => $menuId,
                'type' => 'rule',
                'key' => $child['key'],
                'name' => $child['name'],
                'path' => '',
                'icon' => '',
                'order' => $i,
                'local' => '',
                'status' => 1,
                'hidden' => 1,
                'link' => 0,
                'created_at' => $date,
                'updated_at' => $date,
            ]);
        }
    }

    /**
     * 删除「活动专区」菜单及其子规则
     */
    protected function deleteMenuRules(): void
    {
        if (! Schema::hasTable('sys_rule')) {
            return;
        }

        $menuId = DB::table('sys_rule')->where('key', 'system.activity')->value('id');
        if ($menuId) {
            DB::table('sys_rule')->where('key', 'system.activity')->delete();
            DB::table('sys_rule')->where('parent_id', $menuId)->delete();
        }
    }
};