weilaibike-api/app/Transformers/BikeTransformer.php

<?php
/**
 * Created by PhpStorm.
 * User: Mead
 * Date: 2019/8/5
 * Time: 2:44 PM
 */

namespace App\Transformers;

use App\Handlers\BatteryHandler;
use App\Maps\CacheMap;
use App\Models\AreaSetting;
use App\Models\Bike;
use App\Repositories\AreaSettingRepository;
use Illuminate\Support\Facades\Cache;
use League\Fractal\TransformerAbstract;

class BikeTransformer extends TransformerAbstract
{

    public function transform(Bike $model)
    {
        return [
            'bike_no' => $model->bike_no,
            'box_no' => $model->box_no,
            'battery_power' => $model->battery_power,
            'riding_bike_mileage' => (new BatteryHandler())->byElectricGetMileage($model->battery_power),
            'is_link' => $model->is_link,
            'put_status' => $model->put_status,
            'is_low_battery_power' => $model->is_low_battery_power,
            'is_trouble' => $model->is_trouble,
            'is_riding' => $model->is_riding,
            'status' => $model->status,
            'activity' => $this->activity($model->put_area_id)
        ];
    }

    public function activity($bike_area_id)
    {
        $key = sprintf(CacheMap::AREA_SETTING_AREA_ID, $bike_area_id);;
        $areaSetting = Cache::remember($key, CacheMap::CACHE_TIME, function () use ($bike_area_id) {
            return AreaSetting::query()->where('area_id', $bike_area_id)->first();
        });
        if (empty($areaSetting)) return '';
        if ($areaSetting->is_minute_free == AreaSetting::FREE_MINUTE_OK) {
            $times = '';
            if ($areaSetting->minute_free_times > 0) {
                $times = "(每日限制 " . $areaSetting->minute_free_times . "次)";
            }
            return $areaSetting->many_minute_free . '分钟（包含）内免费骑行' . $times;
        } else {
            return '';
        }
    }

    public function isLowBatteryPower($model)
    {
        $area_id = $model->put_area_id;
        if ($area_id && !$model->is_low_battery_power) {
            $batteryPower = (new AreaSettingRepository(new AreaSetting()))->byAreaIdGetBatteryPower($area_id);
            if ($batteryPower > $model->battery_power) {
                return Bike::BATTERY_POWER_LOW;
            }
            return Bike::BATTERY_POWER_OK;
        }
        return $model->is_low_battery_power;
    }

}