<?php

namespace common\services;

use common\modules\systemlog\SystemLog;
use common\modules\systemlog\SystemLogUtil;
use common\utils\RedisKeyUtil;
use RedisLock\RedisLock;
use Yii;

class NewbieGuideService
{
    const NEWBIE_SEED_ITEM_ID = 101018;
    const NEWBIE_CROP_ID = 18;
    const NEWBIE_REWARD_ITEM_ID = 105002;
    const NEWBIE_REWARD_GOLD = 10;

    public static function grantSeedIfNeeded($userID)
    {
        $userID = (int)$userID;
        if ($userID <= 0) return ResultStatusServices::RS_USER_NOT_LOGIN;

        $lock = new RedisLock(Yii::$app->redis, RedisKeyUtil::lockUser($userID), RedisLock::FLAG_CATCH_EXCEPTIONS);
        if (!$lock->acquire(10)) return ResultStatusServices::RS_SAME_TIME_OPERATION;

        try {
            if (self::hasGrantedSeed($userID)) return ResultStatusServices::RS_OPERATION_SUCCESS;

            $log = SystemLogUtil::get(
                $userID,
                SystemLogUtil::TYPE_ITEM,
                self::NEWBIE_SEED_ITEM_ID,
                1,
                SystemLogUtil::FROM_TYPE_NEWBIE_SEED,
                []
            );

            return ItemServices::checkAndModifyNum($userID, self::NEWBIE_SEED_ITEM_ID, true, 1, $log);
        } finally {
            $lock->release();
        }
    }

    public static function hasGrantedSeed($userID)
    {
        return SystemLog::find()
            ->where([
                'user_id' => (int)$userID,
                'from_type' => SystemLogUtil::FROM_TYPE_NEWBIE_SEED,
                'value' => self::NEWBIE_SEED_ITEM_ID,
            ])
            ->exists();
    }

    public static function isNewbieCrop($cropID)
    {
        return (int)$cropID === self::NEWBIE_CROP_ID;
    }
}