<?php

namespace App\Console\Commands;

use App\Models\Coupon;
use App\Models\CouponSendTask;
use App\Models\CouponTaskLog;
use App\Models\UserCoupon;
use App\Services\CouponService;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Throwable;

class AdminSendCoupon extends Command
{
    /**
     * 单次最大条数
     *
     * @var integer
     */
    protected $limit = 100;
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'admin-work:send-coupon';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '后台执行优惠券发放任务';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        while (true) {
            //获取需要执行的任务数据包
            $logs = CouponTaskLog::where('status', '0')->where('num', '>', 0)->orderBy('id')->limit($this->limit)->get();
            $logs = $logs->groupBy('task_id');
            foreach ($logs as $taskId => $taskLogs) {
                $task = CouponSendTask::find($taskId);
                $coupon = Coupon::find($task->coupon_id);
                //如果优惠券限量，则获取优惠券余量，只发送前面的人；
                $failedLogs = collect([]);
                if ($coupon->limit > 0 && $coupon->stock < ($taskLogs->count() * $task->num)) {
                    $failedLogs = $taskLogs->slice($coupon->stock);
                    $taskLogs = $taskLogs->slice(0, $coupon->stock);
                }

                //批量插入用户优惠券
                $insertUserCoupons = [];
                foreach ($taskLogs as $taskLog) {
                    for ($i=0; $i< $taskLog->num; $i++) {
                        $insertUserCoupons[] = CouponService::createUserCouponData($taskLog->user_id, $coupon);
                    }
                }
                try {
                    DB::beginTransaction();

                    count($insertUserCoupons) > 0 && UserCoupon::insert($insertUserCoupons);
                    //更新任务日志状态；
                    CouponTaskLog::whereIn('id', $taskLogs->pluck('id')->toArray())->update(['status'=>2]);
                    $failedLogs->count() == 0 || CouponTaskLog::whereIn('id', $failedLogs->pluck('id')->toArray())->update(['status'=>3, 'remarks'=>'库存余量不足']);
                    //更新任务对应券发送量，余量;
                    $coupon->increment('sent', $taskLogs->count());
                    if ($coupon->limit > 0) {//限量才减少余量
                        $coupon->decrement('stock', $taskLogs->count());
                    }

                    //更新如果是任务最后一批，更新任务状态;
                    $taskTotalnum = CouponTaskLog::where('task_id', $taskId)->where('num', '>', 0)->count();
                    $taskDidnum = CouponTaskLog::where('task_id', $taskId)->where('num', '>', 0)->where('status', '>', 0)->count();
                    if ($taskTotalnum == $taskDidnum) {
                        $task->update(['status' => 3]);
                    }
                    DB::commit();
                } catch (Throwable $th) {
                    DB::rollBack();
                    report($th);
                }
            }
            $this->info('执行成功');

            sleep(60);
        }
    }
}