<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use think\Db;
use think\exception\PDOException;
use think\exception\ValidateException;

/**
 * app协议政策
 *
 * @icon fa fa-circle-o
 */
class Protocol extends Backend
{
    CONST TYPES = [
        '1' => '使用条款',
        '2' => '隐私政策',
    ];
    
    /**
     * Protocol模型对象
     * @var \app\admin\model\Protocol
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Protocol;

    }

    /**
     * 查看
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();

            $list = $this->model
                ->where($where)
                ->order($sort, $order)
                ->paginate($limit);
            foreach($list as &$item) {
                $item['url'] = addHost('/protocol/index/privacy/t/').$item['type'];
                $item['type'] = self::TYPES[$item['type']];
            }
            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     */
    public function add(): string
    {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);
                //查询相同类型的是否存在
                $one = $this->model->where('type', $params['type'])->count();
                if($one) $this->error('同类型协议已存在');
                $result = false;
                Db::startTrans();
                try {
                    $result = $this->model->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException | PDOException | Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were inserted'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        return $this->view->fetch();
    }

}