<?php

namespace app\admin\controller\user;

use app\admin\model\system\GrantVoucher;
use app\admin\model\User;
use app\common\controller\Backend;
use think\Db;
use think\exception\PDOException;
use think\exception\ValidateException;

/**
 * 优惠券
 *
 * @icon fa fa-circle-o
 */
class Voucher extends Backend
{

    /**
     * Voucher模型对象
     * @var \app\admin\model\user\Voucher
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\user\Voucher;
        $this->view->assign("statusList", $this->model->getStatusList());
    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = true;
        //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 = $this->model
                ->with(['user'])
                ->where($where)
                ->order($sort, $order)
                ->paginate($limit);

            foreach ($list as $row) {
                $row->visible(['id', 'takeAmount', 'fullAmount', 'status', 'expiretime', 'updatetime']);
                $row->visible(['user']);
                $row->getRelation('user')->visible(['username']);
            }

            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        return $this->view->fetch();
    }


    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        $sys_voucher = (\app\admin\model\Voucher::where("id", $params["voucher_id"]))->find();
        if (!$sys_voucher)
            $this->error("选择的优惠券不存在!");
        $user_ids = explode(",", $params["user_ids"]) ?: [];
        $result = false;
        Db::startTrans();
        try {
            $result = $this->model->insertAll(array_map(function ($u_id) use ($sys_voucher) {
                return [
                    "user_id" => $u_id,
                    "voucher_id" => $sys_voucher["id"],
                    "takeAmount" => $sys_voucher["takeAmount"],
                    "fullAmount" => $sys_voucher["fullAmount"],
                    "status" => \E_BASE_STATUS::Normal,
                    "expiretime" => time() + (24 * 60 * 60 * $sys_voucher["indate_day"]),
                    "createtime" => time(),
                    "updatetime" => time()
                ];
            }, $user_ids));
            Db::commit();
        } catch (ValidateException | PDOException | Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success();
    }


    public function grant_voucher()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');

        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        if ($params["user_group"] == "ALL") {
            $users = (new User())
                ->where("status", "normal")
                ->field("id")
                ->select();
        } else {
            $users = (new User())
                ->where("status", "normal")
                ->where("grouping", $params["user_group"])
                ->field("id")
                ->select();
        }
        $gVoucher = [];
        foreach ($users as $user) {
            array_push($gVoucher, [
                "to_user_id" => $user["id"],
                "take_effect" => $params["take_effect"],
                "is_read" => 0,
                "voucher_ids" => $params["voucher_ids"],
                "draw" => 0,
                "createtime" => time(),
                "updatetime" => time(),
            ]);
        }
        if (count($gVoucher) > 0) {
            (new GrantVoucher())->insertAll($gVoucher);
        }
        $this->success();
    }

}