<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use Think\Db;

/**
 * 优惠券管理
 *
 * @icon fa fa-circle-o
 */
class Coupon extends Backend
{

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

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Coupon;
        $this->view->assign("typeList", $this->model->getTypeList());
        $this->view->assign("purposeList", $this->model->getPurposeList());
        $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
     */

    /**
     * 添加
     */
    public function add() {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }

                if ($params['type'] == 1) { //折扣券
                    $params['money'] = (int)$params['money'];
                    if ($params['money'] <= 0 || $params['money'] >= 100) {
                        $this->error('输入正确打折券(百分比)折数');
                    }
                }
                if ($params['type'] == 2) { //抵扣券
                    if (!preg_match('/^[0-9]+(.[0-9]{1,2})?$/', $params['money']) || $params['money'] <= 0) {
                        $this->error('请输入正确抵扣券面值金额');
                    }
                    if (!preg_match('/^[0-9]+(.[0-9]{1,2})?$/', $params['minmoney']) || $params['minmoney'] <= 0) {
                        $this->error('请输入正确抵扣券最低消费金额');
                    }
                    if ($params['minmoney'] <= $params['money']) {
                        $this->error('抵扣券最低消费金额必须大于抵扣金额');
                    }
                }
                $params['effectiveday'] = (int)$params['effectiveday']; //有效天数
                if ($params['effectiveday'] <= 0) {
                    $this->error('请输入正确有效天数');
                }

                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                        $this->model->validateFailException(true)->validate($validate);
                    }
                    $result = $this->model->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (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();
    }

    /**
     * 修改优惠券状态
     */
    public function chanagestatus() {
        $ids = input('ids', 0, 'intval'); //优惠券id
        $status = input('status', 0, 'intval'); //状态:1=发布,2=下架

        if (!$ids) {
            $this->error('参数缺失');
        }
        if (!in_array($status, [1, 2])) {
            $this->error('参数错误');
        }

        $info = Db::name('coupon')->find($ids);
        if (!$info) {
            $this->error('优惠券不存在');
        }
        if ($status == 1 && $info['status'] != 0) {
            $this->error('优惠券状态已改变');
        }
        if ($status == 2) {
            if ($info['status'] != 1) {
                $this->error('优惠券状态已改变');
            }
            if ($info['purpose'] == 0) { //获得方式:0=充值,1=注册,2=推广,3=后台发放,4=轮播图,5=报名活动
                //判断是否有绑定充值
                $count = Db::name('recharge')->where(['coupon_id' => $ids])->find();
                if ($count) {
                    $this->error('请先取消该优惠券与充值列表的绑定关系');
                }
            }
        }

        $rs = Db::name('coupon')->where(['id' => $ids, 'status' => $info['status']])->setField('status', $status);
        if (!$rs) {
            $this->error('操作失败');
        }

        $this->success('操作成功');
    }

    /**
     * 删除
     */
    public function delcoupon($ids = "")
    {
        if (!$this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ? $ids : $this->request->post("ids");

        $info = Db::name('coupon')->find($ids);
        if (!$info) {
            $this->error('操作成功');
        }
        if ($info['status'] != 2) {
            $this->error('请先下架优惠券');
        }

        Db::name('coupon')->delete($ids);
        $this->success('操作成功');
    }

}