<?php

namespace common\components\delivery\util;

use biz\shop\classes\ShopClass;
use biz\shop\classes\ShopExtClass;
use common\components\delivery\services\DispatchService;
use common\components\noticeUtil;
use Yii;

/**
 * 配送报价工具类
 * 用于统一处理跑腿平台报价、免费配送规则等逻辑
 */
class DeliveryQuoteUtil
{
    /**
     * 获取配送报价（含免费配送规则计算）
     *
     * @param array $params 参数数组
     *   - productList: 商品列表 [['bigNum' => 数量, 'weight' => 重量], ...]
     *   - deliveryPlatform: 配送平台（shansong/huolala/fengniao等）
     *   - ghsInfo: 供货商信息 ['mainId' => xxx, 'shopId' => xxx]
     *   - custom: 客户信息对象（包含 name, mobile, fullAddress, lat, long 等）
     *   - order: 订单基础信息 ['orderSn' => xxx, 'itemTotalAmount' => xxx, 'remark' => xxx]
     *   - mainId: 当前操作者的 mainId
     *   - productCount: 商品总数量（用于免费配送判断）
     *
     * @return array 返回数组
     *   - sendCost: 配送费用（元）
     *   - sendDistance: 配送距离（米）
     *   - deliveryList: 可选配送方式列表
     *   - platformQuotes: 原始平台报价数据
     *
     * @throws \Exception 当报价失败时抛出异常
     */
    public static function getDeliveryQuote($params)
    {
        // 1. 参数验证
        self::validateParams($params);

        // 2. 计算商品总重量
        $weight = self::calculateTotalWeight($params['productList']);

        // 3. 构建订单数据
        $order = self::buildOrderData($params, $weight);

        // 4. 获取供货商店铺信息
        $ghsShop = ShopClass::getById($params['ghsInfo']['shopId']);
        if (empty($ghsShop)) {
            throw new \Exception("供货商店铺信息不存在：shopId={$params['ghsInfo']['shopId']}");
        }

        // 5. 调用跑腿平台获取报价
        $orderTime = date('Y-m-d H:i:s');
        $ds = new DispatchService($params['ghsInfo']['mainId'], $params['deliveryPlatform']);
        $platformQuotes = $ds->getAllPlatformPrice($order, $ghsShop, $orderTime);

        // 6. 检查报价结果
        if (isset($platformQuotes['error'])) {
            $errorMsg = $platformQuotes['error'];
            Yii::error($errorMsg);
            noticeUtil::push("{$params['deliveryPlatform']}-跑腿平台估价接口获取费用与距离失败：mainId={$params['mainId']}");
            throw new \Exception($errorMsg);
        }

        // 7. 格式化平台报价
        $deliveryList = $ds->formatPlatformQuotesForDisplay($platformQuotes);

        // 8. 重试机制（如果第一次失败）
        if (is_array($deliveryList) && empty($deliveryList)) {
            sleep(2);
            $platformQuotes = $ds->getAllPlatformPrice($order, $ghsShop, $orderTime);
            $deliveryList = $ds->formatPlatformQuotesForDisplay($platformQuotes);
        }

        // 9. 检查是否有可用的配送方式
        if (is_array($deliveryList) && empty($deliveryList)) {
            $errorMsg = "ghsMainId={$params['ghsInfo']['mainId']}, orderSn={$order['orderSn']} 请求{$params['deliveryPlatform']}平台报价失败。";
            noticeUtil::push($errorMsg);
            Yii::error($errorMsg);
            throw new \Exception($errorMsg);
        }

        // 10. 获取报价结果
        $result = null;
        if (in_array($params['deliveryPlatform'], ['huolala', 'fengniao', 'didi'])) {
            $bracketContent = $params['deliveryBracketContent'] ?? '';
            if ($params['deliveryPlatform'] == 'didi') {
                $bracketContent = "滴滴 ({$bracketContent})";
            }
            $key = '';
            foreach ($deliveryList as $item) {
                if ($params['deliveryPlatform'] == 'huolala') {
                    $key = 'vehicle_type';
                }
                if ($params['deliveryPlatform'] == 'fengniao') {
                    $key = 'base_goods_id';
                }
                if ($params['deliveryPlatform'] == 'didi') {
                    $key = 'name';
                }

                if ($item[$key] == $bracketContent) {
                    $result = $item;
                }
            }
            if ($result === null) {
                throw new \Exception('没有找到对应的配送方式');
            }
        } else {
            $result = $deliveryList[0];
        }

        $sendCost = ($result['price'] ?? 0) / 100;
        $sendDistance = $result['distance'] ?? 0;

        // 11. 应用免费配送规则
        if(isset($params['order']['freightType']) && $params['order']['freightType'] == 0) { //用于处理及区分花束订单是否部分免跑腿费，还是完全收取跑腿费
            $finalSendCost= $sendCost;
        }else{
            $finalSendCost = self::applyFreeDeliveryRules(
                $sendCost,
                $sendDistance,
                $params['ghsInfo']['shopId'],
                $params['productCount'],
                $params['order']['itemTotalAmount'],
                $params['ghsInfo']['mainId'],
                $order['orderSn'],
                $order['goodsType']
            );
        }

        return [
            'sendCost' => $finalSendCost,
            'sendDistance' => $sendDistance,
            'deliveryList' => $deliveryList,
            'platformQuotes' => $platformQuotes,
        ];
    }

    /**
     * 计算商品总重量
     *
     * @param array $productList 商品列表
     * @return float 总重量（公斤）
     */
    private static function calculateTotalWeight($productList)
    {
        $weight = 0;
//        foreach ($productList as $itemData) {
//            $bigNum = $itemData['bigNum'] ?? 0;
//            $thisWeight = $itemData['weight'] ?? 0;
//            $currentWeight = bcmul($thisWeight, $bigNum, 2);
//            $weight = bcadd($currentWeight, $weight, 2);
//        }
        // TODO 先默认都是 1 公斤
        $weight = 1;

        return $weight;
    }

    /**
     * 构建订单数据
     *
     * @param array $params 参数数组
     * @param float $weight 总重量
     * @return array 订单数据
     */
    private static function buildOrderData($params, $weight)
    {
        $custom = $params['custom'];
        $orderInfo = $params['order'];

        return [
            'orderSn' => $orderInfo['orderSn'],
            'customName' => $custom->name,
            'customMobile' => $custom->mobile,
            'fullAddress' => $custom->fullAddress,
            'floor' => $custom->floor,
            'dist' => $custom->dist,
            'lat' => $custom->lat,
            'long' => $custom->long,
            'address' => $custom->address,
            'city' => $custom->city,
            'weight' => $weight,
            'remark' => $orderInfo['remark'] ?? '',
            'prePrice' => $orderInfo['itemTotalAmount'] ?? 0,
            'actPrice' => $orderInfo['itemTotalAmount'] ?? 0,
            'goodsType' => $orderInfo['goodsType'],
        ];
    }

    /**
     * 应用免费配送规则
     *
     * @param float $sendCost 原始配送费用
     * @param int $sendDistance 配送距离（米）
     * @param int $shopId 店铺ID
     * @param int $productCount 商品数量
     * @param float $itemTotalAmount 商品总金额
     * @param int $ghsMainId 供货商mainId
     * @param string $orderSn 订单号
     * @param int $goodsType 商品类型：0花束 1花材
     * @return float 最终配送费用
     */
    private static function applyFreeDeliveryRules(
        $sendCost,
        $sendDistance,
        $shopId,
        $productCount,
        $itemTotalAmount,
        $ghsMainId,
        $orderSn,
        $goodsType
    ){
        // 获取店铺扩展信息（免费配送设置）
        $shopExt = ShopExtClass::getByCondition(['shopId' => $shopId], false, null, 'id,hcFreeKm,hcMap,hsFreeKm,hsAddFee');
        if (empty($shopExt)) {
            return $sendCost;
        }

        if ($goodsType == 1) {//花材
            // 获取花材的免费配送设置
            $hcFreeKm = ($shopExt['hcFreeKm'] ?? 0) * 1000; // 转换为米
            $hcMapString = $shopExt['hcMap'] ?? '';
            $hcMap = [];

            if (!empty($hcMapString)) {
                $hcMap = json_decode($hcMapString, true);
            }

            // 判断是否免跑腿费
            if ($sendDistance > $hcFreeKm) {
                // 超过免费距离，检查是否满足其他免费条件
                if (count($hcMap) > 0) {
                    foreach ($hcMap as $rule) {
                        $ruleNum = $rule['num'] ?? 0;
                        $rulePrice = $rule['price'] ?? 0;
                        $ruleDistance = ($rule['distance'] ?? 0) * 1000;
                        if ($productCount >= $ruleNum && $itemTotalAmount >= $rulePrice && $sendDistance <= $ruleDistance) {
                            //noticeUtil::push("ghsMainId={$ghsMainId}, orderSn={$orderSn}, 免跑腿费，满足条件：" . json_encode($rule));
                            return 0;
                        }
                    }
                }
            } else {
                // 在免费配送距离内
                return 0;
            }
        } else if ($goodsType == 0) {//花束
            // 获取花束的免费配送设置
            $hsFreeKm = ($shopExt['hsFreeKm'] ?? 0) * 1000; // 转换为米
            $hsAddFee = $shopExt['hsAddFee'] ?? 0;

            // 判断是否免跑腿费
            if ($sendDistance > $hsFreeKm) {
                $pass = bcsub($sendDistance, $hsFreeKm, 2);
                $km = bcdiv($pass,1000,2);
                //向上取整，不足1公里的按1公里算
                $km = ceil($km);
                return bcmul($km,$hsAddFee,2);
            } else {
                // 在免费配送距离内
                return 0;
            }
        } else {
            new \Exception('不支持的订单类型');
        }

        return $sendCost;
    }

    /**
     * 参数验证
     *
     * @param array $params 参数数组
     * @throws \Exception 当参数不合法时抛出异常
     */
    private static function validateParams($params)
    {
        $requiredFields = [
            'productList',
            'deliveryPlatform',
            'ghsInfo',
            'custom',
            'order',
            'mainId'
        ];

        foreach ($requiredFields as $field) {
            if (!isset($params[$field])) {
                throw new \Exception("缺少必要参数：{$field}");
            }
        }

        if (empty($params['productList']) || !is_array($params['productList'])) {
            throw new \Exception("商品列表不能为空");
        }

        if (empty($params['ghsInfo']['mainId']) || empty($params['ghsInfo']['shopId'])) {
            throw new \Exception("供货商信息不完整");
        }
    }
}