<?php

namespace App\Http\Controllers\Admins;

use App\Modes\AdverActivity;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

class AdverActivityController extends Controller
{
    /**
     * 活动列表
     * @author lyh
     * @date 2019/4/22
     * @param Request $request
     * @return \Illuminate\Contracts\Routing\ResponseFactory|\Symfony\Component\HttpFoundation\Response
     * @description
     */
    public function index(Request $request)
    {
        $validator = \Validator::make($param = $request->all(), [
            'start_time' => 'date',
            'end_time' => 'date',
        ]);
        if ($validator->fails()) {
            return showJsonErr($validator->errors()->first());
        }
        $res = AdverActivity::select([
            'start_time',
            'end_time',
            'id',
            'free_num',
            'created_at'
        ]);
        if (!empty($param['start_time']) && !empty($param['end_time'])) {
            $res->whereBetween('created_at', [$param['start_time'], $param['end_time']]);
        } else if (!empty($param['start_time']) && empty($param['end_time'])) {
            $res->where('created_at', '>', $param['start_time']);
        } else if (empty($param['start_time']) && !empty($param['end_time'])) {
            $res->where('created_at', '<', $param['end_time']);
        }
        $res->orderBy('start_time','desc');
        $res = $res->paginate(perPage());
        return showJsonSucc(1001, $res);
    }

    /**
     * 添加活动
     * @author lyh
     * @date 2019/4/22
     * @param Request $request
     * @return \Illuminate\Contracts\Routing\ResponseFactory|\Symfony\Component\HttpFoundation\Response
     * @description
     */
    public function add(Request $request)
    {
        $validator = \Validator::make($param = $request->all(), [
            'start_time' => 'required|date',
            'end_time' => 'required|date',
            'free_num' => 'required|integer'
        ]);
        if ($validator->fails()) {
            return showJsonErr($validator->errors()->first());
        }

        if ($param['start_time'] > $param['end_time']) {
            return showJsonErr('开始时间不能大于结束时间');
        }

        $list=\DB::table('adver_activity')->get();
        if(!empty($list)){
            foreach($list as $item){
                $rr=$this->isTimeCross(strtotime($param['start_time']),strtotime($param['end_time']),strtotime($item->start_time),strtotime($item->end_time));
                if($rr){
                    return showJsonErr('抱歉，活动时间重叠');
                }
            }
        }
        /*
        if (AdverActivity::whereBetween('start_time', [$param['start_time'], $param['end_time']])->exists()) {
            return showJsonErr('抱歉，活动时间重叠');
        }
        if (AdverActivity::whereBetween('end_time', [$param['start_time'], $param['end_time']])->exists()) {
            return showJsonErr('抱歉，活动时间重叠!');
        }*/

        $id = AdverActivity::insertGetId($param);
        if (empty($id)) {
            return showJsonErr('抱歉，添加活动失败');
        }
        return showJsonSucc('添加活动成功', AdverActivity::find($id));
    }

    /*时间段交集*/
    function isTimeCross($beginTime1=0, $endTime1=0, $beginTime2=0, $endTime2=0) {
        $status = $beginTime2 - $beginTime1;
        if($status > 0){
            $status2 = $beginTime2 - $endTime1;
            if($status2 >= 0){
                return false; // 无交集
            }else{
                return true; // 有交集
            }
        }else{
            $status2 = $endTime2 - $beginTime1;
            if($status2 > 0){
                return true;
            }else{
                return false;
            }
        }
    }
}