<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare(strict_types=1);

namespace addon\iot\controller\backend;

use think\facade\Db;
use think\facade\View;
use ywxapp\controller\BackendBase;

/**
 * 转发规则控制器（规则引擎 / 桥接到 EMQX）
 */
class Rules extends BackendBase
{
    /**
     * 转发规则页（layui.table 前端拉取）
     */
    public function rule()
    {
        return View::fetch('admin/rule');
    }

    /**
     * 规则列表（layui.table 分页 JSON）
     */
    public function ruleTable()
    {
        $page  = max(1, (int) input('get.page', 1));
        $limit = (int) input('get.limit', 20);
        if ($limit < 1 || $limit > 100) {
            $limit = 20;
        }
        $q = Db::name('iot_rule')->order('id', 'desc');
        $count = (int) (clone $q)->count();
        $rows  = $q->page($page, $limit)->select()->toArray();
        $this->result->success(['list' => $rows, 'count' => $count]);
    }

    public function saveRule()
    {
        $id = (int) input('post.id', 0);
        $data = [
            'name'            => (string) input('post.name', ''),
            'source_filter'   => (string) input('post.source_filter', ''),
            'target_type'     => (string) input('post.target_type', 'mqtt'),
            'target_broker'   => (string) input('post.target_broker', ''),
            'target_clientid' => (string) input('post.target_clientid', ''),
            'target_username' => (string) input('post.target_username', ''),
            'target_password' => (string) input('post.target_password', ''),
            'target_topic'    => (string) input('post.target_topic', ''),
            'target_qos'      => (int) input('post.target_qos', 0),
            'enabled'         => (int) input('post.enabled', 1),
            'remark'          => (string) input('post.remark', ''),
        ];
        if ($data['name'] === '' || $data['source_filter'] === '') {
            $this->result->error('规则名称与源主题过滤器必填');
        }
        if ($data['target_broker'] === '') {
            $this->result->error('目标 Broker 地址必填');
        }
        try {
            if ($id > 0) {
                Db::name('iot_rule')->where('id', $id)->update($data);
            } else {
                $data['create_at'] = time();
                Db::name('iot_rule')->insert($data);
            }
        } catch (\Throwable $e) {
            $this->result->error('保存失败：' . $e->getMessage());
        }
        $this->result->success('保存成功（最多 30s 后在 Broker 生效）');
    }

    public function deleteRule()
    {
        $id = (int) input('post.id', 0);
        Db::name('iot_rule')->where('id', $id)->delete();
        $this->result->success('已删除');
    }
}