<?php

namespace App\Service;

use App\Service\BaseService;
use Illuminate\Support\Facades\Redis;

/*
 * redis操作相关方法
 */

class RedisService extends BaseService {

    /**
     * 
     * @param string $key reids的get的key
     * @param string $class 待执行的方法的class    App\Service\AdminService
     * @param string $function  待执行的方法的function   getSupplyNum
     * @param array $parameters 待执行的方法的parameters  参数 ...$parameters   [] 数组自动绑定
     * @param int $survivalTime redis存储时间
     * $returnData 调用方法是否必须有数据
     * @return type
     * @throws \Exception
     */
    public static function get(string $key, string $class = '', string $function = '', array $parameters = [], int $survivalTime = 3600, $returnData = true) {
        if (empty($key)) {
            throw new \Exception('key不能为空');
        }

        $keyValue = Redis::get($key);
        if (empty($keyValue)) {

            if (!method_exists($class, $function)) {
                throw new \Exception($class . '此类的方法' . $function . '不存在');
            }
            /*
             * 参数自动绑定，参数位置不能错
             * $value 最好返回是数组，
             */
            $value = $class::$function(...$parameters);
//            p($value);
            if (empty($value) && $returnData) {
                throw new \Exception($class . '此类的方法' . $function . '返回数据为空，请检查调用方法');
            }
            Redis::set($key, json_encode($value));
            Redis::expire($key, $survivalTime);
            return json_encode($value);
        }
        return $keyValue;
    }

}

demo   AdminService

 //近一个月数据  
    public static function getMonthSaleOrderData($shop_id) {

        //近一个月订单总金额
        $saleOrderKey = 'MonthSaleOrder' . $shop_id;

        $data = RedisService::get($saleOrderKey, 'App\Service\AdminService', 'MonthSaleOrderData', [$shop_id]);

        return json_decode($data, true);
    }

    public static function MonthSaleOrderData($shop_id) {
        $time = get_lately_month_start_to_end();

        $query = SaleOrder::where('shop_id', $shop_id)->where('is_delete', 10)
                ->where('create_time', '>=', $time['start_time'])
                ->where('create_time', '<=', $time['end_time']);
        $saleOrderAmount = $query->sum('order_amount');
        $saleOrderNumber = $query->sum('order_number');
        $saleOrderCount = $query->count();
        $data = [
            'saleOrderAmount' => $saleOrderAmount,
            'saleOrderNumber' => $saleOrderNumber,
            'saleOrderCount' => $saleOrderCount,
        ];
        return $data;
    }