<?php

namespace App\Services\Client;

use Exception;
use Carbon\Carbon;
use App\Models\Order;
use App\Models\Project;
use App\Enums\OrderType;
use App\Enums\UserStatus;
use App\Models\AgentInfo;
use App\Models\CoachUser;
use App\Enums\OrderSource;
use App\Enums\OrderStatus;
use App\Models\MemberUser;
use App\Models\OrderRecord;
use App\Enums\PaymentMethod;
use App\Enums\ProjectStatus;
use App\Models\CoachLocation;
use App\Models\MemberAddress;
use App\Enums\TransactionType;
use App\Enums\TechnicianStatus;
use App\Models\OrderGrabRecord;
use App\Enums\OrderRecordStatus;
use Illuminate\Support\Facades\DB;
use App\Enums\TechnicianAuthStatus;
use App\Models\WalletPaymentRecord;
use Illuminate\Support\Facades\Log;
use App\Enums\OrderGrabRecordStatus;
use Illuminate\Support\Facades\Auth;
use App\Enums\TechnicianLocationType;
use Illuminate\Support\Facades\Redis;
use SimpleSoftwareIO\QrCode\Facades\QrCode;
use Illuminate\Database\Eloquent\Collection;
use App\Services\Client\Traits\HandlesPayments;
use App\Services\Client\Traits\HandlesOrderRecords;
use App\Services\Client\Traits\ValidatesServiceTime;
use App\Services\Client\Traits\CalculatesOrderAmounts;
use App\Models\CoachStatistic;
use App\Models\FinanceRecord;
use App\Models\OrderRefundRecord;
use App\Enums\PaymentType;
use App\Enums\TransactionStatus;
use App\Enums\TechnicianWorkStatus;
use App\Models\OrderCommentTag;
use App\Enums\OrderRecordType;
use App\Models\CoachOrderComment;

use function PHPUnit\Framework\isNull;

readonly class OrderService
{
    use CalculatesOrderAmounts;
    use HandlesOrderRecords;
    use HandlesPayments;
    use ValidatesServiceTime;

    public function __construct(
        private AgentService $agentService,
        private ProjectService $projectService,
        private CoachService $coachService,
        private WalletService $walletService
    ) {}

    /**
     * 订单初始化
     *
     * @param  int  $userId  用户ID
     * @param  array  $data  订单数据
     * @return array 初始化的订单信息
     *
     * @throws \Exception
     *
     * 逻辑描述:
     * 1. 验证初始化参数(project_id、coach_id)
     * 2. 获取用户信息(包含钱包和地址)
     * 3. 获取区域编码(从地址或参数)
     * 4. 验证技师状态并获取可用时间
     * 5. 获取项目详情(含价格)
     * 6. 计算订单金额(含路费)
     * 7. 返回初始化数据(钱包、技师、项目、地址、金额、可用时间)
     */
    public function initialize(int $userId, array $data): array
    {
        // 参数验证
        $this->validateInitializeData($data);

        return DB::transaction(function () use ($userId, $data) {
            // 获取用户信息
            $user = $this->getUserWithWalletAndAddress($userId);

            // 获取区域编码
            $areaCode = $this->getAreaCode($user->address, $data);

            // 获取技师信息
            $coach = $this->validateCoach($data['coach_id']);

            // 计算距离和获取技师位置
            [$distance, $coachLocation] = $this->calculateDistanceAndLocation(
                userId: $userId,
                coachId: $coach->id,
                inputData: $data,
                userAddress: $user->address
            );

            // 设置技师的距离和位置信息
            $coach->distance = $distance;
            if ($coachLocation) {
                $coach->location = $coachLocation;
            }

            // 获取技师可用时间
            $availableTimeSlots = $this->coachService->getSchedule($coach->id);

            // 获取项目信息
            $project = $this->getProjectDetail($data['project_id'], $areaCode);

            // 计算订单金额
            $amounts = $this->calculateOrderAmount(
                userId: $userId,
                addressId: $user->address?->id ?? 0,
                coachId: $data['coach_id'],
                projectId: $data['project_id'],
                agentId: $project->agent_id,
                useBalance: false,
                distance: $distance,
                lat: $data['latitude'] ?? ($user->address?->latitude ?? 0),
                lng: $data['longitude'] ?? ($user->address?->longitude ?? 0)
            );

            return [
                'wallet' => $user->wallet,
                'coach' => $coach,
                'project' => $project,
                'address' => $user->address,
                'amounts' => $amounts,
                'availableTimeSlots' => $availableTimeSlots,
            ];
        });
    }

    /**
     * 计算距离并获取技师位置信息
     *
     * 计算逻辑优先级：
     * 1. 使用前端传入的距离
     * 2. 使用用户默认地址计算
     * 3. 使用前端传入的经纬度计算
     *
     * @param int $userId 用户ID
     * @param int $coachId 技师ID
     * @param array $inputData 输入数据
     * @param ?object $userAddress 用户默认地址
     * @return array{0: float, 1: ?array} [距离, 位置信息]
     */
    private function calculateDistanceAndLocation(
        int $userId,
        int $coachId,
        array $inputData,
        ?object $userAddress
    ): array {
        // 1. 如果前端直接传入距离，直接使用
        if (isset($inputData['distance'])) {
            return [$inputData['distance'], null];
        }

        // 2. 确定用户坐标来源
        $userCoordinates = $this->getUserCoordinates($inputData, $userAddress);
        if (!$userCoordinates) {
            return [0.0, null];
        }

        // 3. 计算距离和获取位置
        return $this->calculateDistanceFromCoordinates(
            userId: $userId,
            coachId: $coachId,
            longitude: $userCoordinates['longitude'],
            latitude: $userCoordinates['latitude']
        );
    }

    /**
     * 获取用户坐标
     *
     * @return array{longitude: float, latitude: float}|null
     */
    private function getUserCoordinates(array $inputData, ?object $userAddress): ?array
    {
        // 优先使用默认地址
        if ($userAddress && $userAddress->latitude && $userAddress->longitude) {
            return [
                'longitude' => $userAddress->longitude,
                'latitude' => $userAddress->latitude
            ];
        }

        // 其次使用前端传入的坐标
        if (isset($inputData['latitude']) && isset($inputData['longitude'])) {
            return [
                'longitude' => $inputData['longitude'],
                'latitude' => $inputData['latitude']
            ];
        }

        return null;
    }

    /**
     * 根据坐标计算距离和获取技师位置
     *
     * @param int $userId 用户ID
     * @param int $coachId 技师ID
     * @param float $longitude 经度
     * @param float $latitude 纬度
     * @return array{0: float, 1: ?array} [距离, 位置信息]
     */
    private function calculateDistanceFromCoordinates(
        int $userId,
        int $coachId,
        float $longitude,
        float $latitude
    ): array {
        // 临时存储用户位置用于计算
        $userLocationKey = "user_{$userId}_temp_location";
        Redis::geoadd(
            'coach_locations',
            $longitude,
            $latitude,
            $userLocationKey
        );

        try {
            $distances = [];

            // 计算与技师两个位置点的距离
            foreach ([TechnicianLocationType::COMMON, TechnicianLocationType::CURRENT] as $locationType) {
                $locationKey = "{$coachId}_{$locationType->value}";
                $distance = Redis::geodist('coach_locations', $userLocationKey, $locationKey, 'km');

                if ($distance !== null) {
                    $distances[] = [
                        'distance' => (float)$distance,
                        'key' => $locationKey,
                        'type' => $locationType->value
                    ];
                }
            }

            // 如果没有有效距离，返回默认值
            if (empty($distances)) {
                return [0.0, null];
            }

            // 获取最小距离的记录
            $minDistance = array_reduce($distances, function ($carry, $item) {
                if (!$carry || $item['distance'] < $carry['distance']) {
                    return $item;
                }
                return $carry;
            });

            // 从 Redis 获取原始位置信息
            $originalLocation = Redis::hget(
                "coach_location_original:{$coachId}",
                "type_{$minDistance['type']}"
            );

            if ($originalLocation) {
                $locationData = json_decode($originalLocation, true);
                return [
                    $minDistance['distance'],
                    [
                        'longitude' => (float)$locationData['longitude'],
                        'latitude' => (float)$locationData['latitude']
                    ]
                ];
            }

            // 如果没有原始数据，则从数据库获取
            $location = CoachLocation::where('coach_id', $coachId)
                ->where('type', $minDistance['type'])
                ->latest()
                ->first();

            return [
                $minDistance['distance'],
                $location ? [
                    'longitude' => (float)$location->longitude,
                    'latitude' => (float)$location->latitude
                ] : null
            ];
        } finally {
            // 清理临时数据
            Redis::zrem('coach_locations', $userLocationKey);
        }
    }

    /**
     * 验证初始化数据
     *
     * 逻辑描述:
     * 1. 验证项目ID不能为空
     * 2. 验证技师ID不能为空
     */
    private function validateInitializeData(array $data): void
    {
        abort_if(empty($data['project_id']), 400, '项目ID不能为空');
        abort_if(empty($data['coach_id']), 400, '技师ID不能为空');
    }

    /**
     * 获取用户信息(包含钱包和地址)
     *
     * 逻辑描述:
     * 1. 查询用户信息(关联钱包和地址)
     * 2. 验证用户状态是否正常
     * 3. 返回用户信息
     */
    private function getUserWithWalletAndAddress(int $userId): MemberUser
    {
        $user = MemberUser::with(['wallet', 'address'])
            ->where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->first();

        abort_if(! $user, 400, '用户状态异常');

        return $user;
    }

    /**
     * 获取区域编码
     *
     * 逻辑描述:
     * 1. 优先使用地址中的区域编码
     * 2. 其次使用参数中的区域编码
     * 3. 验证区域编码不能为空
     */
    private function getAreaCode(?object $address, array $data): string
    {
        $areaCode = $address?->area_code ?? ($data['area_code'] ?? null);
        abort_if(empty($areaCode), 400, '区域编码不能为空');

        return $areaCode;
    }

    /**
     * 获取项目详情
     *
     * 逻辑描述:
     * 1. 调用项目服务获取详情
     * 2. 验证项目是否存在
     * 3. 返回项目信息
     */
    private function getProjectDetail(int $projectId, string $areaCode): Project
    {
        $project = $this->projectService->getProjectDetail($projectId, $areaCode);
        abort_if(! $project, 400, '项目不存在');

        return $project;
    }

    /**
     * 记录错误日志
     *
     * 逻辑描述:
     * 1. 记录错误信息
     * 2. 记录上下文数据
     * 3. 记录错误堆栈
     */
    private function logError(string $message, Exception $e, array $context = []): void
    {
        Log::error($message, [
            ...$context,
            'error' => $e->getMessage(),
            'trace' => $e->getTraceAsString(),
        ]);
    }

    /**
     * 创建订单
     *
     * @param array{
     *     user_id: int,
     *     project_id: int,
     *     coach_id: ?int,
     *     address_id: int,
     *     service_time: string,
     *     remark: ?string,
     *     use_balance: bool,
     *     agent_id: ?int,
     *     distance: float,
     *     payment_type: int,
     *     type: int,
     * } $data 订单数据
     * @return array{
     *     order_id: int,
     *     order_no: string,
     *     total_amount: float,
     *     balance_amount: float,
     *     pay_amount: float
     * }
     *
     * @throws \Exception
     *
     * 逻辑描述:
     * 1. 验证基础数据(用户状态、项目状态、服务时间、技师状态等)
     * 2. 计算订单金额(项目价格、路费、优惠等)
     * 3. 处理加钟订单特殊逻辑(使用原订单地址和技师)
     * 4. 获取服务地址信息
     * 5. 创建订单数据
     * 6. 创建订单相关记录
     * 7. 处理余额支付(如果是余额支付)
     * 8. 发送订单创建通知
     * 9. 返回订单信息
     */
    public function createOrder(int $userId, array $data): array
    {
        return DB::transaction(function () use ($userId, $data) {
            try {
                // 转换时间格式
                if (!empty($data['service_time'])) {
                    $data['service_time'] = Carbon::parse($data['service_time'])->format('Y-m-d H:i:s');
                }

                // 1. 验证基础数据
                $this->validateOrderData($userId, $data);

                // 检测代理
                $agentId = null;
                if (!empty($data['agent_id'])) {
                    $agent = $this->agentService->getAgent($data['agent_id']);
                    if ($agent) {
                        $agentId = $agent->id;
                    }
                }
                $data['agent_id'] = $agentId;
                // 2. 计算订单金额
                $amounts = $this->calculateOrderAmount(
                    userId: $userId,
                    addressId: $data['address_id'] ?? null,
                    coachId: $data['coach_id'] ?? null,
                    projectId: $data['project_id'],
                    agentId: $data['agent_id'] ?? null,
                    useBalance: $data['use_balance'] ?? false,
                    distance: $data['distance'] ?? 0
                );

                // 加钟订单使用原订单地址和技师ID
                if (! empty($data['order_id'])) {
                    $order = Order::findOrFail($data['order_id']);

                    // 验证订单状态
                    abort_if(
                        ! in_array($order->state, [
                            OrderStatus::SERVICE_START->value,
                            OrderStatus::SERVICING->value,
                            OrderStatus::SERVICE_END->value
                        ]),
                        422,
                        '原订单状态不允许加钟'
                    );
                    $data['parent_id'] = $order->id;
                    $data['address_id'] = $order->address_id;
                    $data['coach_id'] = $order->coach_id;
                    $data['service_time'] = $order->service_end_time;
                }

                // 3. 获取地址
                $address = MemberUser::find($userId)->addresses()
                    ->where('id', $data['address_id'])
                    ->first();
                abort_if(! $address, 404, '收货地址不存在');

                // 3. 创建订单
                $order = $this->createOrderData(['user_id' => $userId, ...$data], $amounts, $address);

                // 4. 创建订单相关记录
                $this->createRelatedRecords($order);

                // 5. 检测支付类型，自动进行余额支付
                if ($order->payment_type == PaymentMethod::BALANCE->value) {
                    // 处理余额支付
                    $this->processBalancePayment($order);

                    // 更改订单状态
                    $order->state = OrderStatus::PAID->value;
                    $order->service_start_time = $data['service_time'];
                    $order->service_end_time = Carbon::parse($data['service_time'])
                        ->addMinutes($order->project->duration);
                    $order->save();

                    // 创建订单相关记录
                    $this->createRelatedRecords($order);
                } else {
                    $order->payment_type = PaymentMethod::WECHAT->value;
                }

                // 6. 发送通知
                $this->notifyOrderCreated($order);

                // 7. 添加订单位置到Redis(仅抢单类型)
                if ($order->type === OrderType::GRAB->value && $address->latitude && $address->longitude) {
                    Redis::geoadd(
                        'order_locations',
                        $address->longitude,
                        $address->latitude,
                        'order_' . $order->id
                    );

                    // 设置过期时间(24小时)
                    Redis::expire('order_locations', 86400);
                }

                $result = [
                    'order_id' => $order->id,
                    'order_no' => $order->order_no,
                    'total_amount' => $amounts['total_amount'],
                    'balance_amount' => $amounts['balance_amount'],
                    'pay_amount' => $amounts['pay_amount'],
                ];

                // 8. 如果是微信支付，获取支付参数
                if ($order->payment_type == PaymentMethod::WECHAT->value) {
                    $paymentService = app(PaymentService::class);
                    $result['wx_payment'] = $paymentService->getPaymentConfig($order->id);
                }

                return $result;
            } catch (Exception $e) {
                $this->logError('创建订单失败', $e, $data);
                throw $e;
            }
        });
    }

    /**
     * 验证订单创建数据
     */
    private function validateOrderData(int $userId, array $data): void
    {
        // 验证用户状态
        $user = MemberUser::where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->first();
        abort_if(! $user, 404, '用户不存在');
        abort_if($user->state != UserStatus::OPEN->value, 403, '用户状态异常');

        // 验证项目状态
        $project = Project::where('id', $data['project_id'])->first();
        abort_if(! $project, 404, '服务项目不存在');
        abort_if($project->state != ProjectStatus::OPEN->value, 403, '服务项目未开放');

        // 验证服务时间和技师状态
        if (! empty($data['service_time']) && ! empty($data['coach_id'])) {
            $this->validateServiceTimeParams($data['coach_id'], $data['service_time']);
        }
    }

    /**
     * 创建订单数据
     */
    private function createOrderData(array $data, array $amounts, object $address): Order
    {
        // 获取项目信息和服务时长
        $project = Project::findOrFail($data['project_id']);
        $serviceDuration = $project->duration;

        return Order::create([
            'order_no' => $this->generateOrderNo(),
            'parent_id' => $data['parent_id'] ?? null,
            'user_id' => $data['user_id'],
            'project_id' => $data['project_id'],
            'coach_id' => $data['coach_id'] ?? null,
            'agent_id' => $data['agent_id'] ?? null,
            'address_id' => $data['address_id'],
            'service_time' => $data['service_time'] ?? null,
            'project_duration' => $serviceDuration,  // 添加服务时长记录
            'remark' => $data['remark'] ?? '',
            'total_amount' => $amounts['total_amount'],
            'balance_amount' => $amounts['balance_amount'],
            'pay_amount' => $amounts['pay_amount'],
            'traffic_amount' => $amounts['delivery_fee'],
            'project_amount' => $amounts['project_amount'],
            'discount_amount' => $amounts['coupon_amount'],
            'state' => OrderStatus::CREATED->value,
            // 如果余额支付且未使用优惠券且未支付金额，则使用余额支付，否则使用传入的支付方式
            'payment_type' => $amounts['balance_amount'] > 0 && $amounts['pay_amount'] == 0
                ? PaymentMethod::BALANCE->value
                :  PaymentMethod::WECHAT->value,
            'latitude' => $address->latitude,
            'longitude' => $address->longitude,
            'location' => $address->location,
            'address' => $address->detail,
            'area_code' => $address->area_code,
            'type' => $data['order_type'],
            'distance' => $data['distance'] ?? 0,
            'dest_phone' => $address->phone,
        ]);
    }

    private function createOrderRecord(Order $order, int $objectId, string $objectType, OrderRecordStatus $status, string $remark): OrderRecord
    {
        return OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $objectId,
            'object_type' => $objectType,
            'state' => $status->value,
            'remark' => $remark,
        ]);
    }

    /**
     * 生成订单号
     */
    private function generateOrderNo(): string
    {
        return 'O' . date('YmdHis') . str_pad(random_int(1, 9999), 4, '0', STR_PAD_LEFT);
    }

    /**
     * 处理余额支付
     */
    private function processBalancePayment(Order $order): void
    {
        $user = MemberUser::find($order->user_id);
        abort_if(! $user, 404, sprintf('用户[%d]不存在', $order->user_id));

        $wallet = $user->wallet;
        abort_if(
            $wallet->available_balance < $order->balance_amount,
            400,
            sprintf(
                '用户[%d]可用余额[%.2f]不足，需要[%.2f]',
                $user->id,
                $wallet->available_balance,
                $order->balance_amount
            )
        );

        // 扣除余额
        if ($order->balance_amount > 0) {
            $this->walletService->deduct(
                userId: $user->id,
                amount: $order->balance_amount,
                type: TransactionType::PAYMENT->value,
                objectId: $order->id,
                remark: sprintf('订单[%s]余额支付', $order->order_no)
            );
        }
    }

    /**
     * 创建订单相关记录
     */
    private function createRelatedRecords(Order $order): void
    {
        // 创建订单状态记录
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $order->user_id,
            'object_type' => MemberUser::class,
            'state' => $order->state,
            'remark' => $order->state === OrderStatus::PAID->value
                ? '余额支付成功'
                : '订单创建成功',
        ]);
    }

    /**
     * 发送订单创建通知
     */
    private function notifyOrderCreated(Order $order): void
    {
        // TODO: 实现订单创建通知
        // 1. 通知用户
        // event(new OrderCreatedEvent($order));
    }

    /**
     * 获取订单地址
     */
    private function getOrderAddress(MemberUser $user, array $data, OrderType $orderType): object
    {
        // 加钟订单使用原订单地址
        if ($orderType === OrderType::OVERTIME) {
            $originalOrder = $this->getOriginalOrder($user, $data['order_id']);
            $data['address_id'] = $originalOrder->address_id;
        }

        abort_if(empty($data['address_id']), 400, '地址ID不能为空');

        return $user->addresses()
            ->where('id', $data['address_id'])
            ->firstOrFail();
    }

    /**
     * 验证支付方式和余额
     */
    private function validatePayment(MemberUser $user, array $data, array $amounts): void
    {
        abort_if($amounts['total_amount'] <= 0, 400, '订单金额异常');

        if ($data['payment_type'] === PaymentMethod::BALANCE->value) {
            $wallet = $user->wallet;
            abort_if($wallet->available_balance < $amounts['balance_amount'], 400, '可用余额不足');
        }
    }

    /**
     * 判断是否需要处理余额支付
     */
    private function shouldHandleBalancePayment(Order $order, OrderType $orderType): bool
    {
        return $order->payment_type === PaymentMethod::BALANCE->value
            && $orderType !== OrderType::GRAB;
    }

    /**
     * 验证技师状态
     */
    private function validateCoach(int $coachId): CoachUser
    {
        $coach = CoachUser::query()
            ->with(['info'])
            ->where('id', $coachId)
            ->where('state', TechnicianStatus::ACTIVE->value)
            ->first();

        abort_if(! $coach, 400, '技师不存在或未激活');
        abort_if(
            ! $coach->info || $coach->info->state !== TechnicianAuthStatus::PASSED->value,
            400,
            '技师未通过认证'
        );

        return $coach;
    }

    // 提取方法：获取原始订单
    private function getOriginalOrder($user, $orderId): Order
    {
        $originalOrder = $user->orders->where('id', $orderId)
            ->whereIn('state', [OrderStatus::SERVICING->value, OrderStatus::COMPLETED->value])
            ->firstOrFail();

        return $originalOrder;
    }

    // 提取方法：准备加钟订单数据
    private function prepareAddTimeData($originalOrder, $data): array
    {
        if ($originalOrder->state == OrderStatus::SERVICING->value) {
            $startTime = now();
        } else {
            $startTime = now();
        }

        return [
            ...$data,
            'order_id' => $data['order_id'],
            'address_id' => $originalOrder->address_id,
            'service_time' => $startTime,
            'coach_id' => $originalOrder->coach_id,
        ];
    }

    /**
     * 取消订单
     *
     * @param  int  $userId  用户ID
     * @param  int  $orderId  订单ID
     * @param  string|null  $reason  取消原因
     * @return array{message: string}
     *
     * @throws \Exception
     */
    public function cancelOrder(int $userId, int $orderId, ?string $reason = null): array
    {
        return DB::transaction(function () use ($userId, $orderId, $reason) {
            try {
                // 1. 验证订单状态
                $order = $this->validateOrderForCancel($userId, $orderId);

                // 2. 计算退款金额
                $refundAmounts = $this->calculateCancelAmount($order);

                // 3. 更新订单状态为已取消
                $this->updateOrderCancelStatus($order);

                // 4. 创建取消记录
                $this->createCancelRecords($order, $reason);

                // 5. 处理退款
                $this->processCancelRefund($order, $refundAmounts);

                // 6. 更新订单退款状态
                $this->updateOrderRefundStatus($order);

                // 7. 发送取消通知
                $this->notifyCancel($order);

                return ['message' => '订单取消成功'];
            } catch (Exception $e) {
                $this->logError('取消订单失败', $e, [
                    'user_id' => $userId,
                    'order_id' => $orderId,
                    'reason' => $reason,
                ]);
                throw $e;
            }
        });
    }

    /**
     * 验证订单取消条件
     */
    private function validateOrderForCancel(int $userId, int $orderId): Order
    {
        // 获取并锁定订单
        $order = Order::where('id', $orderId)
            ->whereIn('state', [
                OrderStatus::PAID->value,      // 已支付
                OrderStatus::ACCEPTED->value,  // 已接单
                OrderStatus::DEPARTED->value,  // 已出发
                OrderStatus::REJECTED->value,  // 技师拒单
            ])
            ->lockForUpdate()
            ->firstOrFail();

        // 验证订单所属用户
        abort_if($order->user_id !== $userId, 403, '无权操作此订单');

        // 验证订单是否已取消
        abort_if($order->state === OrderStatus::CANCELLED->value, 400, '订单已取消');

        return $order;
    }

    /**
     * 计算取消费用
     *
     * @return array{
     *     total_refund: float,
     *     balance_refund: float,
     *     payment_refund: float,
     *     penalty_amount: float
     * }
     */
    private function calculateCancelAmount(Order $order): array
    {
        // 计算违约金
        $penaltyAmount = $this->calculatePenaltyAmount($order);

        // 计算退款金额分配
        return $this->calculateRefundDistribution($order, $penaltyAmount);
    }

    /**
     * 计算违约金
     *
     * @return array{
     *     total_penalty: float,
     *     coach_fee: float,
     *     platform_traffic_fee: float,
     *     platform_penalty: float
     * }
     */
    private function calculatePenaltyAmount(Order $order): array
    {
        // 根据订单状态计算违约金
        return match ($order->state) {
            // 已出发状态：扣除路费（90%给技师，10%给平台），剩余金额再扣除20%
            OrderStatus::DEPARTED->value => $this->calculateDepartedPenalty($order),

            // 已接单状态：扣除订单总金额的6%作为违约金
            OrderStatus::ACCEPTED->value => [
                'total_penalty' => bcmul($order->total_amount, '0.06', 2), // 订单总金额的6%
                'coach_fee' => 0,
                'platform_traffic_fee' => 0,
                'platform_penalty' => bcmul($order->total_amount, '0.06', 2) // 平台获得全部违约金
            ],

                // 其他状态（已支付等）：不收取违约金
            default => [
                'total_penalty' => 0,
                'coach_fee' => 0,
                'platform_traffic_fee' => 0,
                'platform_penalty' => 0
            ]
        };
    }

    /**
     * 计算已出发状态的违约金
     * 规则：
     * 1. 路费分配：90%给技师，10%给平台
     * 2. 剩余金额的20%作为平台违约金
     *
     * @return array{
     *     total_penalty: float,      // 总违约金
     *     coach_fee: float,          // 技师获得的路费
     *     platform_traffic_fee: float, // 平台获得的路费分成
     *     platform_penalty: float     // 平台获得的违约金
     * }
     */
    private function calculateDepartedPenalty(Order $order): array
    {
        // 获取路费
        $trafficFee = $order->traffic_fee ?? 0;

        // 路费分配：90%给技师，10%给平台
        $coachFee = bcmul($trafficFee, '0.9', 2);         // 技师获得的路费
        $platformTrafficFee = bcsub($trafficFee, $coachFee, 2);  // 平台获得的路费分成

        // 计算扣除路费后的剩余金额
        $remainingAmount = bcsub($order->total_amount, $trafficFee, 2);

        // 剩余金额的20%作为平台违约金
        $platformPenalty = bcmul($remainingAmount, '0.2', 2);

        // 总违约金 = 路费 + 平台违约金
        $totalPenalty = bcadd($trafficFee, $platformPenalty, 2);

        return [
            'total_penalty' => $totalPenalty,           // 总违约金
            'coach_fee' => $coachFee,                   // 技师获得的路费
            'platform_traffic_fee' => $platformTrafficFee, // 平台获得的路费分成
            'platform_penalty' => $platformPenalty       // 平台获得的违约金
        ];
    }

    /**
     * 计算退款金额分配
     *
     * @return array{
     *     total_refund: float,
     *     balance_refund: float,
     *     payment_refund: float,
     *     penalty_amount: float,
     *     coach_fee: float,
     *     platform_traffic_fee: float,
     *     platform_penalty: float
     * }
     */
    private function calculateRefundDistribution(Order $order, array $penaltyInfo): array
    {
        // 计算实际可退金额(总金额减去违约金)
        $totalRefund = bcsub($order->total_amount, $penaltyInfo['total_penalty'], 2);

        // 优先退还用户使用的余额部分
        $balanceRefund = min($order->balance_amount, $totalRefund);
        // 剩余部分退还到支付账户
        $paymentRefund = bcsub($totalRefund, $balanceRefund, 2);

        return [
            'total_refund' => $totalRefund,
            'balance_refund' => $balanceRefund,
            'payment_refund' => $paymentRefund,
            'penalty_amount' => $penaltyInfo['total_penalty'],
            'coach_fee' => $penaltyInfo['coach_fee'],
            'platform_traffic_fee' => $penaltyInfo['platform_traffic_fee'],
            'platform_penalty' => $penaltyInfo['platform_penalty'],
        ];
    }

    /**
     * 处理取消退款
     */
    private function processCancelRefund(Order $order, array $refundAmounts): void
    {
        try {
            // 1. 处理余额退款
            if ($refundAmounts['balance_refund'] > 0) {
                $this->processBalanceCancelRefund($order, $refundAmounts['balance_refund']);
            }

            // 2. 处理支付退款
            if ($refundAmounts['payment_refund'] > 0) {
                $refundResult = $this->processPaymentCancelRefund($order, $refundAmounts['payment_refund']);

                // 3. 创建退款记录
                $refundRecord = OrderRefundRecord::create([
                    'order_id' => $order->id,
                    'total_refund_amount' => $refundAmounts['total_refund'],
                    'balance_refund_amount' => $refundAmounts['balance_refund'],
                    'payment_refund_amount' => $refundAmounts['payment_refund'],
                    'penalty_amount' => $refundAmounts['penalty_amount'], // 这里使用 penalty_amount 而不是 penalty
                    'coach_fee' => $refundAmounts['coach_fee'],
                    'platform_traffic_fee' => $refundAmounts['platform_traffic_fee'],
                    'platform_penalty' => $refundAmounts['platform_penalty'],
                    'refund_no' => $refundResult['refund_no'],
                    'transaction_id' => $order->transaction_id,
                    'state' => TransactionStatus::SUCCESS->value,  // 使用成功状态枚举值
                    'remark' => '订单取消退款'
                ]);
            }
        } catch (\Exception $e) {
            Log::error('处理退款失败', [
                'order_id' => $order->id,
                'refund_amounts' => $refundAmounts,
                'error' => $e->getMessage()
            ]);
            throw $e;
        }
    }

    /**
     * 处理余额退款
     */
    private function processBalanceCancelRefund(Order $order, float $amount): void
    {
        $wallet = $order->user->wallet;

        // 更新钱包余额
        $wallet->increment('total_balance', $amount);
        $wallet->increment('available_balance', $amount);

        // 创建钱包交易记录
        $wallet->transRecords()->create([
            'amount' => $amount,
            'trans_type' => TransactionType::REFUND->value,  // 使用退款枚举值
            'owner_type' => Order::class,
            'owner_id' => $order->id,
            'remark' => '订单取消退款',
            'before_balance' => $wallet->total_balance - $amount,
            'after_balance' => $wallet->total_balance,
            'state' => TransactionStatus::SUCCESS->value,  // 使用成功状态枚举值
        ]);

        // 创建订单记录
        $order->records()->create([
            'object_id' => $order->user_id,
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::REFUNDING->value,
            'remark' => '余额退款'
        ]);
    }

    /**
     * 处理支付退款
     */
    private function processPaymentCancelRefund(Order $order, float $amount): array
    {
        try {
            // 调用支付服务处理退款
            $paymentService = app(PaymentService::class);
            $result = $paymentService->refund(
                $order->transaction_id,
                $amount,
                $order->pay_amount,
                '订单取消退款'
            );

            if (!$result['success']) {
                throw new \Exception($result['message']);
            }

            // 创建订单记录
            $order->records()->create([
                'object_id' => $order->user_id,
                'object_type' => MemberUser::class,
                'state' => OrderRecordStatus::REFUNDING->value,
                'remark' => '微信支付退款'
            ]);

            return $result;
        } catch (\Exception $e) {
            Log::error('订单退款失败', [
                'order_id' => $order->id,
                'amount' => $amount,
                'error' => $e->getMessage()
            ]);
            throw $e;
        }
    }

    /**
     * 更新订单取消状态
     */
    private function updateOrderCancelStatus(Order $order): void
    {
        $order->update([
            'state' => OrderStatus::CANCELLED->value,
        ]);
    }

    /**
     * 创建取消记录
     */
    private function createCancelRecords(Order $order, ?string $reason): void
    {
        // 创建订单状态记录
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => Auth::id(),
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::CANCELLED->value,
            'remark' => "用户取消订单：{$reason}",
        ]);
    }

    /**
     * 发送取消通知
     */
    private function notifyCancel(Order $order): void
    {
        // TODO: 实现取消通知逻辑
        // 1. 知用户
        // event(new OrderCancelledEvent($order));

        // 2. 通知技师
        if ($order->coach_id) {
            // event(new OrderCancelledToCoachEvent($order));
        }
    }

    /**
     * 结束订单
     */
    public function finishOrder(int $userId, int $orderId): array
    {

        return DB::transaction(function () use ($userId, $orderId) {
            try {
                // 1. 验证用户和订单
                $order = $this->validateOrderForFinish($userId, $orderId);

                // 2. 验证技师状
                $coach = $this->validateCoach($order->coach_id);

                // 3. 检测并更新技师状态

                // 如果技师状态为忙碌，则更新为空闲
                if ($coach->work_status === TechnicianWorkStatus::BUSY->value) {
                    $coach->update([
                        'work_status' => TechnicianWorkStatus::FREE->value
                    ]);
                }

                // 4. 完成订单
                $this->completeOrder($order, $userId);

                // 5. 知技师
                // event(new OrderFinishedEvent($order));

                return ['message' => '订单已完成'];
            } catch (Exception $e) {
                $this->logFinishOrderError($e, $userId, $orderId);
                throw $e;
            }
        });
    }

    /**
     * 验证订单完成条件
     */
    private function validateOrderForFinish(int $userId, int $orderId): Order
    {
        // 验证用户状态
        $user = MemberUser::where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->firstOrFail();

        // 验证订单状态
        $order = Order::where('user_id', $userId)
            ->where('id', $orderId)
            ->where('state', OrderStatus::SERVICING->value)
            ->lockForUpdate()
            ->firstOrFail();

        return $order;
    }

    /**
     * 完成订单
     */
    private function completeOrder(Order $order, int $userId): void
    {
        // 1. 创建订单记录
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $userId,
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::COMPLETED->value,
            'remark' => '服务完成',
        ]);

        // 2. 更新订单状态
        $order->state = OrderStatus::SERVICE_END->value;
        $order->service_end_time = now();
        $order->save();
    }

    /**
     * 记录订单完成错误日志
     */
    private function logFinishOrderError(Exception $e, int $userId, int $orderId): void
    {
        Log::error('结束订单失败:', [
            'message' => $e->getMessage(),
            'user_id' => $userId,
            'order_id' => $orderId,
            'trace' => $e->getTraceAsString(),
        ]);
    }

    /**
     * 确认技师离开
     */
    public function confirmLeave(int $userId, int $orderId): array
    {
        return DB::transaction(function () use ($userId, $orderId) {
            try {
                // 1. 参数校验
                $order = Order::where('user_id', $userId)
                    ->where('id', $orderId)
                    ->where('state', OrderStatus::SERVICE_END->value) // 订单状态必须是服务结束
                    ->firstOrFail();

                if (! $order) {
                    throw new Exception('订单不能撤离');
                }

                // 2. 添加订单撤离记录
                OrderRecord::create([
                    'order_id' => $orderId,
                    'object_id' => $userId,
                    'object_type' => MemberUser::class,
                    'state' => OrderRecordStatus::LEFT->value,
                    'remark' => '技师已离开',
                ]);

                // 3. 修改订单状态为撤离
                $order->state = OrderStatus::LEAVING->value;
                $order->save();

                return ['message' => '已确技师离开'];
            } catch (Exception $e) {
                Log::error('确认技师离开失败:', [
                    'message' => $e->getMessage(),
                    'user_id' => $userId,
                    'order_id' => $orderId,
                ]);
                throw $e;
            }
        });
    }

    /**
     * 获取用户订单列表
     *
     * @param int $userId 用户ID
     * @param int $tab 标签页 0:全部 1:待支付 2:进行中 3:已完成 4:已取消
     * @return array
     */
    public function getOrderList(int $userId, int $tab = 0)
    {
        // 1. 验证用户
        $user = $this->validateUserForQuery($userId);

        // 2. 构建基础查询
        $query = $this->buildOrderListQuery($user);

        // 3. 获取状态过滤条件
        $states = $this->getOrderStatesByTab($tab);

        // 4. 加载关联数据并分页
        return $this->paginateOrderList($query, [
            'states' => $states
        ]);
    }

    /**
     * 分页获取订单列表
     *
     * @param \Illuminate\Database\Eloquent\Builder $query
     * @param array $filters 过滤条件
     */
    private function paginateOrderList($query, array $filters = [])
    {
        // 从请求中获取分页参数
        $perPage = request('per_page', 10);
        $page = request('page', 1);

        // 应用状态过滤
        if (!empty($filters['states'])) {
            $query->whereIn('state', $filters['states']);
        }

        // 按创建时间降序排序并分页
        $paginatedOrders = $query->orderBy('created_at', 'desc')
            ->paginate(
                perPage: $perPage,
                page: $page
            );

        // 格式化订单数据
        $formattedOrders = $paginatedOrders->map(function ($order) {
            return $this->formatOrderListItem($order);
        });

        return [
            'items' => $formattedOrders,
            'total' => $paginatedOrders->total(),
        ];
    }

    /**
     * 根据标签页获取订单状态
     */
    private function getOrderStatesByTab(int $tab): array
    {
        return match ($tab) {
            1 => [OrderStatus::CREATED->value, OrderStatus::PAYMENT_FAILED->value], // 待付款
            2 => [ // 进行中
                OrderStatus::PAID->value,
                OrderStatus::ASSIGNED->value,
                OrderStatus::ACCEPTED->value,
                OrderStatus::DEPARTED->value,
                OrderStatus::ARRIVED->value,
                OrderStatus::SERVICE_START->value,
                OrderStatus::SERVICING->value,
                OrderStatus::SERVICE_END->value,
                OrderStatus::LEAVING->value,
            ],
            3 => [OrderStatus::COMPLETED->value], // 已完成
            4 => [OrderStatus::LEFT->value], // 待评价
            5 => [ // 已取消
                OrderStatus::CANCELLED->value,
                OrderStatus::REFUNDED->value,
                OrderStatus::REJECTED->value,
                OrderStatus::REFUNDING->value,
                OrderStatus::REFUND_FAILED->value,
            ],
            default => [], // 全部订单
        };
    }

    /**
     * 验证用户查询权限
     */
    private function validateUserForQuery(int $userId): MemberUser
    {
        return MemberUser::where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->firstOrFail();
    }

    /**
     * 构建订单列表基础查询
     */
    private function buildOrderListQuery(MemberUser $user)
    {
        return $user->orders()
            ->whereNull('user_deleted_at')  // 不显示用户已删除的订单
            ->with([
                'coach' => function ($query) {
                    $query->with(['info' => function ($q) {
                        $q->select(['id', 'coach_id', 'nickname', 'avatar', 'gender']);
                    }]);
                },
                'project:id,title,subtitle,duration,cover',
                'records' => function ($query) {
                    $query->orderBy('created_at', 'desc')
                        ->select(['id', 'order_id', 'state', 'remark', 'created_at']);
                },
                // 'evaluation:id,order_id,score,content,created_at',
            ]);
    }

    /**
     * 格式化订单列表项
     */
    private function formatOrderListItem(Order $order): array
    {
        return [
            'order_id' => $order->id,
            'order_no' => $order->order_no,
            'state' => $order->state,
            'state_text' => OrderStatus::fromValue($order->state)->label(),
            'type' => $order->type,
            'type_text' => OrderType::fromValue($order->type)?->label(),
            'source' => $order->source,
            'source_text' => OrderSource::fromValue($order->source)?->label(),
            'total_amount' => $order->total_amount, // 订单总金额
            'balance_amount' => $order->balance_amount, // 余额支付金额
            'pay_amount' => $order->pay_amount, // 实付金额
            'payment_type' => $order->payment_type, // 支付方式
            'payment_type_text' => $order->payment_type ? PaymentMethod::fromValue($order->payment_type)->label() : null, // 支付方式文本
            'discount_amount' => $order->discount_amount, // 优惠金额
            'traffic_amount' => $order->traffic_amount, // 路费金额
            'service_time' => $order->service_time,
            'service_start_time' => $order->service_start_time instanceof \Carbon\Carbon  // 服务开始时间
                ? $order->service_start_time->toDateTimeString()
                : $order->service_start_time,
            'service_end_time' => $order->service_end_time instanceof \Carbon\Carbon    // 服务结束时间
                ? $order->service_end_time->toDateTimeString()
                : $order->service_end_time,
            'created_at' => $order->created_at->toDateTimeString(),
            'coach' => $order->coach ? [
                'id' => $order->coach->id,
                'nickname' => $order->coach->info->nickname,
                'avatar' => $order->coach->info->avatar,
            ] : null,
            'project' => $order->project ? [
                'id' => $order->project->id,
                'title' => $order->project->title,
                'subtitle' => $order->project->subtitle,
                'duration' => $order->project->duration,
                'cover_image' => $order->project->cover_image,
            ] : null,
            'address' => $order->address ? [
                'location' => $order->location,
                'address' => $order->address,
            ] : null,
            'latest_record' => $order->records->first() ? [
                'state' => $order->records->first()->state,
                'remark' => $order->records->first()->remark,
                'created_at' => $order->records->first()->created_at->format('Y-m-d H:i:s'),
            ] : null,
            'evaluation' => $order->evaluation ? [
                'score' => $order->evaluation->score,
                'content' => $order->evaluation->content,
            ] : null,
        ];
    }

    /**
     * 获取订单详情
     *
     * @param  int  $userId  用户ID
     * @param  int  $orderId  订单ID
     * @return array 订单详情
     *
     * @throws \Exception
     */
    public function getOrderDetail(int $userId, int $orderId): array
    {
        try {
            // 1. 验证订单权限
            $order = $this->validateOrderAccess($userId, $orderId);

            // 2. 加载订单关联数据
            $order->load([
                'coach.info' => function ($query) {
                    $query->select(['id', 'coach_id', 'nickname', 'avatar', 'gender']);
                },
                'project:id,title,subtitle,duration,cover',
                'records' => function ($query) {
                    $query->orderBy('created_at', 'desc')
                        ->select(['id', 'order_id', 'state', 'remark', 'created_at']);
                },
                // 'evaluation' => function ($query) {
                //     $query->select(['id', 'order_id', 'score', 'content', 'images', 'created_at']);
                // },
            ]);

            // 3. 格式化返回数据
            return $this->formatOrderDetail($order);
        } catch (Exception $e) {
            $this->logError('获取订单详情失败', $e, [
                'user_id' => $userId,
                'order_id' => $orderId,
            ]);
            throw $e;
        }
    }

    /**
     * 验证订单访问权限
     */
    private function validateOrderAccess(int $userId, int $orderId): Order
    {
        return Order::where('id', $orderId)
            ->where('user_id', $userId)
            ->firstOrFail();
    }

    /**
     * 格式化订单详情数据
     */
    private function formatOrderDetail(Order $order): array
    {
        return [
            'order_id' => $order->id,
            'order_no' => $order->order_no,
            'state' => $order->state,
            'state_text' => OrderStatus::fromValue($order->state)->label(),
            'total_amount' => $order->total_amount,
            'balance_amount' => $order->balance_amount,
            'pay_amount' => $order->pay_amount,
            'delivery_fee' => $order->delivery_fee,
            'project_amount' => $order->project_amount,
            'coupon_amount' => $order->coupon_amount,
            'service_time' => $order->service_time,
            'service_start_time' => $order->service_start_time instanceof \Carbon\Carbon  // 服务开始时间
                ? $order->service_start_time->toDateTimeString()
                : $order->service_start_time,
            'service_end_time' => $order->service_end_time instanceof \Carbon\Carbon    // 服务结束时间
                ? $order->service_end_time->toDateTimeString()
                : $order->service_end_time,
            'created_at' => $order->created_at->toDateTimeString(),
            'remark' => $order->remark,
            'distance' => $order->distance ?? 0,
            'coach' => $order->coach ? [
                'id' => $order->coach->id,
                'nickname' => $order->coach->info->nickname,
                'avatar' => $order->coach->info->avatar,
                'gender' => $order->coach->info->gender,
                'score' => $order->coach->info?->score,
            ] : null,
            'project' => $order->project ? [
                'id' => $order->project->id,
                'title' => $order->project->title,
                'subtitle' => $order->project->subtitle,
                'duration' => $order->project->duration,
                'cover' => $order->project->cover,
            ] : null,
            'address' => $order->address ? [
                'id' => $order->address_id,
                'location' => $order->location,
                'address' => $order->address,
                'latitude' => $order->latitude,
                'longitude' => $order->longitude
            ] : null,
            'records' => $order->records->map(function ($record) {
                return [
                    'id' => $record->id,
                    'state' => $record->state,
                    'remark' => $record->remark,
                    'created_at' => $record->created_at->format('Y-m-d H:i:s'),
                ];
            })->toArray(),
            // 'evaluation' => $order->evaluation ? [
            //     'score' => $order->evaluation->score,
            //     'content' => $order->evaluation->content,
            //     'images' => $order->evaluation->images,
            //     'created_at' => $order->evaluation->created_at->format('Y-m-d H:i:s'),
            // ] : null,
        ];
    }

    /**
     * 应用订单过滤条件
     */
    private function applyOrderFilters($query, array $filters): void
    {
        // 按状态数组筛选
        if (!empty($filters['states'])) {
            $query->whereIn('state', $filters['states']);
        }

        // 按时间范围筛选
        if (! empty($filters['start_date'])) {
            $query->where('created_at', '>=', $filters['start_date']);
        }
        if (! empty($filters['end_date'])) {
            $query->where('created_at', '<=', $filters['end_date']);
        }

        // 按服务类型筛选
        if (! empty($filters['project_id'])) {
            $query->where('project_id', $filters['project_id']);
        }

        // 按技师筛选
        if (! empty($filters['coach_id'])) {
            $query->where('coach_id', $filters['coach_id']);
        }

        // 按订单号搜索
        if (! empty($filters['order_no'])) {
            $query->where('order_no', 'like', "%{$filters['order_no']}%");
        }
    }

    /**
     * 订单退款
     *
     * @param  int  $orderId  订单ID
     * @return array{message: string}
     *
     * @throws \Exception
     */
    public function refundOrder(int $orderId): array
    {
        return DB::transaction(function () use ($orderId) {
            try {
                // 1. 验证订单状态
                $order = $this->validateOrderForRefund($orderId);

                // 2. 计算退款金额
                $refundAmounts = $this->calculateRefundAmount($order);

                // 3. 处理退款
                $this->processRefund($order, $refundAmounts);

                // 4. 更新订单状态
                $this->updateOrderRefundStatus($order);

                // 5. 记录退款操作
                $this->createRefundRecords($order, $refundAmounts);

                // 6. 通知相关方
                $this->notifyRefund($order);

                return ['message' => '退款申请成功'];
            } catch (Exception $e) {
                $this->logError('订单退款失败', $e, [
                    'order_id' => $orderId,
                ]);
                throw $e;
            }
        });
    }

    /**
     * 验证订单退款条件
     */
    private function validateOrderForRefund(int $orderId): Order
    {
        // 获取并锁定订单,防止并发操作
        $order = Order::where('id', $orderId)
            ->whereIn('state', [
                OrderStatus::PAID->value,
                OrderStatus::ACCEPTED->value,
                OrderStatus::DEPARTED->value,
            ])
            ->lockForUpdate()
            ->firstOrFail();

        // 验证当前用户是否为订单所有者
        $user = Auth::user();
        abort_if($order->user_id !== $user->id, 403, '无权操作此订单');

        // 检查订单是否已经退款
        abort_if($order->state === OrderStatus::REFUNDED->value, 400, '订单已退款');

        return $order;
    }

    /**
     * 计算退款金额
     */
    private function calculateRefundAmount(Order $order): array
    {
        // 计算违约金
        $penaltyAmount = $this->calculatePenaltyAmount($order);

        // 计算退款金额分配
        return $this->calculateRefundDistribution($order, $penaltyAmount);
    }

    /**
     * 处理退款操作
     */
    private function processRefund(Order $order, array $refundAmounts): void
    {
        // 处理余额退款部分
        if ($refundAmounts['balance_refund'] > 0) {
            $this->processBalanceRefund($order, $refundAmounts['balance_refund']);
        }

        // 处理支付退款部分
        if ($refundAmounts['payment_refund'] > 0) {
            $this->processPaymentRefund($order, $refundAmounts['payment_refund']);
        }
    }

    /**
     * 处理余额退款
     */
    private function processBalanceRefund(Order $order, float $amount): void
    {
        $wallet = $order->user->wallet;

        // 增加用户钱包总余额
        $wallet->increment('total_balance', $amount);
        // 增加可用余额
        $wallet->increment('available_balance', $amount);

        // 创建退款交易记录
        $wallet->transRecords()->create([
            'amount' => $amount,
            'trans_type' => TransactionType::REFUND->value,  // 使用退款枚举值
            'owner_type' => Order::class,
            'owner_id' => $order->id,
            'remark' => '订单退款',
            'before_balance' => $wallet->total_balance - $amount,
            'after_balance' => $wallet->total_balance,
            'state' => TransactionStatus::SUCCESS->value,  // 使用成功状态枚举值
        ]);
    }

    /**
     * 处理支付退款
     */
    private function processPaymentRefund(Order $order, float $amount): void
    {
        // TODO: 实现第三方支付退款逻辑
        // $paymentService = app(PaymentService::class);
        // $paymentService->refund($order->payment_no, $amount);
    }

    /**
     * 更新订单退款状态
     *
     * @param Order $order 订单对象
     * @return void
     */
    private function updateOrderRefundStatus(Order $order): void
    {
        // 根据支付方式更新订单状态
        if ($order->payment_type === PaymentMethod::BALANCE->value) {
            // 余额支付直接更新为退款成功
            $order->update([
                'state' => OrderStatus::REFUNDED->value,
                'refund_time' => now(),
            ]);

            // 创建退款成功记录
            $order->records()->create([
                'object_id' => $order->user_id,
                'object_type' => MemberUser::class,
                'state' => OrderRecordStatus::REFUNDED->value,
                'remark' => '退款成功'
            ]);
        } else {
            // 微信支付更新为退款中
            $order->update([
                'state' => OrderStatus::REFUNDING->value
            ]);

            // 创建退款中记录
            $order->records()->create([
                'object_id' => $order->user_id,
                'object_type' => MemberUser::class,
                'state' => OrderRecordStatus::REFUNDING->value,
                'remark' => '退款处理中'
            ]);
        }
    }

    /**
     * 创建退款记录
     */
    private function createRefundRecords(Order $order, array $refundAmounts): void
    {
        // 创建退款记录
        $refundRecord = $order->refundRecords()->create([
            'total_refund_amount' => $refundAmounts['total_refund'],
            'balance_refund_amount' => $refundAmounts['balance_refund'],
            'payment_refund_amount' => $refundAmounts['payment_refund'],
            'deduct_amount' => $refundAmounts['deduct_amount'],
            'state' => 'success',
            'remark' => '用户申请退款',
        ]);

        // 创建订单状态记录
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => Auth::id(),
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::REFUNDING->value,
            'remark' => '订单退款中',
        ]);
    }

    /**
     * 发送退款通知
     */
    private function notifyRefund(Order $order): void
    {
        // TODO: 实现退款通知逻辑
        // 1. 通知用户
        // event(new OrderRefundedEvent($order));

        // 2. 通知技师
        if ($order->coach_id) {
            // event(new OrderRefundedToCoachEvent($order));
        }
    }

    /**
     * 获取代理商配置
     */
    public function getAgentConfig(int $agentId): array
    {
        $agent = AgentInfo::where('id', $agentId)
            ->where('state', 'enable')
            ->firstOrFail();

        // $config = AgentConfig::where('agent_id', $agentId)->firstOrFail();

        return [
            // 'min_distance' => $config->min_distance,
            // 'min_fee' => $config->min_fee,
            // 'per_km_fee' => $config->per_km_fee
        ];
    }

    /**
     * 获取技师配置
     */
    public function getCoachConfig(int $coachId): array
    {
        $coach = CoachUser::where('id', $coachId)
            ->where('state', 'enable')
            ->where('auth_state', 'passed')
            ->firstOrFail();

        // $config = CoachConfig::where('coach_id', $coachId)->firstOrFail();

        return [
            // 'delivery_fee_type' => $config->delivery_fee_type,
            // 'charge_delivery_fee' => $config->charge_delivery_fee
        ];
    }

    /**
     * 计算路费
     *
     * @param  int  $coachId  技师ID
     * @param  int  $projectId  项目ID
     * @param  int|null  $agentId  代理商ID
     * @param  float  $distance  距离(公里)
     * @return float 路费金额
     *
     * @throws \Exception
     */
    public function calculateDeliveryFee(
        int $coachId,
        int $projectId,
        ?int $agentId,
        float $distance
    ): float {
        try {
            // 1. 验证基础参数
            $this->validateDeliveryFeeParams($coachId, $projectId, $distance);

            // 2. 获取计费规则
            $feeRules = $this->getDeliveryFeeRules($coachId, $agentId);

            // 3. 算路费
            return $this->calculateFeeByRules($distance, $feeRules, $coachId, $projectId);
        } catch (Exception $e) {
            $this->logError('计算路费失败', $e, [
                'coach_id' => $coachId,
                'project_id' => $projectId,
                'agent_id' => $agentId,
                'distance' => $distance,
            ]);
            throw $e;
        }
    }

    /**
     * 验证路费计算参数
     */
    private function validateDeliveryFeeParams(int $coachId, int $projectId, float $distance): void
    {
        // 验证技师状态
        $coach = $this->validateCoach($coachId);

        // 验证项目状态
        $project = Project::where('id', $projectId)
            ->where('state', ProjectStatus::OPEN->value)
            ->firstOrFail();

        // 验证距离有效性
        abort_if($distance < 0, 400, '距离计算错误');
    }

    /**
     * 获取路费计算规则
     *
     * @return array{
     *     min_distance: float,
     *     min_fee: float,
     *     per_km_fee: float,
     *     max_distance: float,
     *     max_fee: float,
     *     free_distance: float
     * }
     */
    private function getDeliveryFeeRules(int $coachId, ?int $agentId): array
    {
        // 1. 获取系统默认规则
        $defaultRules = $this->getDefaultDeliveryFeeRules();

        // 2. 获取代理商规则（如果有）
        $agentRules = $agentId ? $this->getAgentDeliveryFeeRules($agentId) : [];

        // 3. 获取技师个性化规则
        // $coachRules = $this->getCoachDeliveryFeeRules($coachId);

        // 4. 合并规则，优先级：技师 > 代理商 > 系统默认
        return array_merge(
            $defaultRules,
            $agentRules,
            // $coachRules
        );
    }

    /**
     * 获取系统默认路费规则
     */
    private function getDefaultDeliveryFeeRules(): array
    {
        // TODO: 从配置表中获取系统默认路费规则
        return [
            'min_distance' => 3.0,    // 最小计费距离(公里)
            'min_fee' => 10.0,        // 最小路费(元)
            'per_km_fee' => 3.0,      // 每公里费用(元)
            'max_distance' => 120.0,    // 最大服务距离(公里)
            'max_fee' => 50.0,        // 最大路费(元)
            'free_distance' => 1.0,    // 免费服务距离(公里)
        ];
    }

    /**
     * 获取代理商路费规则
     */
    private function getAgentDeliveryFeeRules(int $agentId): array
    {
        // $agentConfig = AgentConfig::where('agent_id', $agentId)
        //     ->where('state', 'enable')
        //     ->first();

        // if (! $agentConfig) {
        //     return [];
        // }

        // return [
        //     'min_distance' => $agentConfig->min_distance,
        //     'min_fee' => $agentConfig->min_fee,
        //     'per_km_fee' => $agentConfig->per_km_fee,
        //     'max_distance' => $agentConfig->max_distance,
        //     'max_fee' => $agentConfig->max_fee,
        //     'free_distance' => $agentConfig->free_distance,
        // ];
        return [];
    }

    /**
     * 获取技师路费规则
     */
    private function getCoachDeliveryFeeRules(int $coachId): array
    {
        // TODO: 从配置表中获取技师个性化路费规则
        // $coachConfig = CoachConfig::where('coach_id', $coachId)
        //     ->where('state', 'enable')
        //     ->first();
        $coachConfig = null;

        if (! $coachConfig) {
            return [];
        }

        // 如果技师设置了不收取路费
        if (! $coachConfig->charge_delivery_fee) {
            return [
                'min_fee' => 0,
                'per_km_fee' => 0,
                'max_fee' => 0,
            ];
        }

        return [
            'min_distance' => $coachConfig->min_distance,
            'min_fee' => $coachConfig->min_fee,
            'per_km_fee' => $coachConfig->per_km_fee,
            'max_distance' => $coachConfig->max_distance,
            'max_fee' => $coachConfig->max_fee,
            'free_distance' => $coachConfig->free_distance,
        ];
    }

    /**
     * 根据规则计算路费
     *
     * @param  float  $distance  距离(公里)
     * @param array{
     *     min_distance: float,  // 最小计费距离(公里)
     *     min_fee: float,      // 小路费(元)
     *     per_km_fee: float,   // 每公里费用(元)
     *     max_distance: float,  // 最大服务距离(公里)
     *     max_fee: float,      // 最大路费(元)
     *     free_distance: float  // 免费服务距离(公里)
     * } $rules 计费规则
     * @param int $coachId 技师ID
     * @param int $projectId 项目ID
     * @return float 路费金额(元)
     */
    private function calculateFeeByRules(float $distance, array $rules, int $coachId, int $projectId): float
    {
        // 1. 获取技师项目路费设置
        $coachProject = DB::table('coach_project')
            ->where('coach_id', $coachId)
            ->where('project_id', $projectId)
            ->where('state', 1) // 启用状态
            ->first();

        // 2. 如果技师设置了免路费，直接返回技师设置的固定路费
        if ($coachProject && (int)$coachProject->traffic_fee_type === 0) {
            return 0.00;
        }

        // 3. 检查是否超出最大服务距离
        abort_if(
            $distance > $rules['max_distance'],
            400,
            sprintf('超出最大服务距离 %.1f 公里', $rules['max_distance'])
        );

        // 4. 检查是否在免费距离内
        if ($distance <= $rules['free_distance']) {
            return 0.00;
        }

        // 5. 计算实际计费距离
        $chargeDistance = max(0, $distance - $rules['free_distance']);

        // 6. 检查是否达到最小计费距离
        if ($chargeDistance < $rules['min_distance']) {
            return $rules['min_fee'];
        }

        // 7. 计算基础路费
        $fee = bcmul($chargeDistance, $rules['per_km_fee'], 2);

        // 8. 应用最小路费限制
        $fee = max($fee, $rules['min_fee']);

        // 9. 应用最大路费限制
        $fee = min($fee, $rules['max_fee']);

        // 10. 如果技师设置了固定路费，使用技师设置的路费
        if ($coachProject && $coachProject->traffic_fee > 0) {
            $fee = (float)$coachProject->traffic_fee;
        }

        // 11. 根据路费类型计算（单程/双程）
        if ($coachProject && $coachProject->traffic_fee_type === 2) { // 2表示双程
            $fee = bcmul($fee, '2', 2); // 双程路费翻倍
        }

        return $fee;
    }

    /**
     * 计算两点之间的距离
     *
     * @param  float  $lat1  起点纬度
     * @param  float  $lng1  起点经度
     * @param  float  $lat2  终点纬度
     * @param  float  $lng2  终点经度
     * @return float 距离(公里)
     */
    private function getDistance(float $lat1, float $lng1, float $lat2, float $lng2): float
    {
        // 将角度转为弧度
        $radLat1 = deg2rad($lat1);
        $radLat2 = deg2rad($lat2);
        $radLng1 = deg2rad($lng1);
        $radLng2 = deg2rad($lng2);

        // 地球半径(公里)
        $earthRadius = 6371;

        // 计算距离
        $distance = acos(
            sin($radLat1) * sin($radLat2) +
                cos($radLat1) * cos($radLat2) * cos($radLng1 - $radLng2)
        ) * $earthRadius;

        // 保留2位小数
        return round($distance, 2);
    }

    /**
     * 计算订单金额
     *
     * @param  int  $userId  用户ID
     * @param  int|null  $addressId  地址ID
     * @param  int|null  $coachId  技师ID
     * @param  int  $projectId  项目ID
     * @param  int|null  $agentId  代理商ID
     * @param  bool  $useBalance  是否使用余额
     * @param  float  $distance  距离
     * @param  float  $lat  纬度
     * @param  float  $lng  经度
     * @return array{
     *     total_amount: float,
     *     balance_amount: float,
     *     pay_amount: float,
     *     coupon_amount: float,
     *     project_amount: float,
     *     delivery_fee: float
     * }
     *
     * @throws \Exception
     */
    public function calculateOrderAmount(
        int $userId,
        ?int $addressId,
        ?int $coachId,
        int $projectId,
        ?int $agentId = null,
        bool $useBalance = false,
        float $distance = 0,
        float $lat = 0,
        float $lng = 0
    ): array {
        try {
            // 1. 验证用户状态和权限
            $user = $this->validateUserForCalculation($userId);

            // 2. 获取项目信息和价格(包含代理价格)
            $project = $this->getProjectWithPrice($projectId, $agentId);

            // 3. 计算路费(如果有技师)
            $deliveryFee = $this->calculateDeliveryFeeForOrder(
                coachId: $coachId,
                projectId: $projectId,
                agentId: $agentId,
                distance: $distance,
                addressId: $addressId,
                lat: $lat,
                lng: $lng
            );

            // 4. 计算优惠金额(优惠券、活动等)
            $discountAmount = $this->calculateDiscountAmount($projectId, $userId);

            // 5. 计算订单总金额(项目价格 + 路费 - 优惠金额)
            $totalAmount = $this->calculateTotalAmount($project->price, $deliveryFee, $discountAmount);

            // 6. 处理余额支付分配(优先使用余额)
            $paymentAmounts = $this->calculatePaymentDistribution(
                user: $user,
                totalAmount: $totalAmount,
                useBalance: $useBalance
            );

            // 7. 返回计算结果
            return [
                'total_amount' => $totalAmount,           // 订单总金额
                'balance_amount' => $paymentAmounts['balance_amount'],  // 余额支付金额
                'pay_amount' => $paymentAmounts['pay_amount'],         // 需要支付金额
                'coupon_amount' => $discountAmount,       // 优惠金额
                'project_amount' => $project->price,      // 项目原价
                'delivery_fee' => $deliveryFee,          // 路费
            ];
        } catch (Exception $e) {
            // 记录错误日志
            $this->logError('计算订单金额失败', $e, [
                'user_id' => $userId,
                'project_id' => $projectId,
                'coach_id' => $coachId,
                'address_id' => $addressId,
            ]);
            throw $e;
        }
    }

    /**
     * 验证用户状态
     */
    private function validateUserForCalculation(int $userId): MemberUser
    {
        $user = MemberUser::with('wallet')
            ->where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->first();

        abort_if(! $user, 404, '用户不存在或状态异常');

        return $user;
    }

    /**
     * 获取项目信息和价格
     */
    private function getProjectWithPrice(int $projectId, ?int $agentId): Project
    {
        // 获取基础项目信息
        $project = Project::where('id', $projectId)
            ->where('state', ProjectStatus::OPEN->value)
            ->first();

        abort_if(! $project, 404, '项目不存在或状态异常');

        // 如果有代理商，获取代理商价格
        if ($agentId) {
            $agentProject = $this->getAgentProjectPrice($agentId, $projectId);
            if ($agentProject) {
                $project->price = $agentProject->price;
            }
        }

        return $project;
    }

    /**
     * 获取代理商项目价格
     */
    private function getAgentProjectPrice(int $agentId, int $projectId): ?object
    {
        return DB::table('agent_project')
            ->where('agent_id', $agentId)
            ->where('project_id', $projectId)
            ->where('state', 'enable')
            ->first();
    }

    /**
     * 计算订单路费
     */
    private function calculateDeliveryFeeForOrder(
        ?int $coachId,
        int $projectId,
        ?int $agentId,
        float $distance,
        ?int $addressId,
        ?float $lat,
        ?float $lng
    ): float {
        // 如果没有技师，无需计算路费
        if (! $coachId) {
            return 0;
        }

        if (! $addressId && ! $lat && ! $lng) {
            return 0;
        }

        // 如果距离为0，需要重新计算距离
        if ($distance <= 0) {
            $distance = $this->calculateDistance($coachId, $addressId, $lat, $lng);
        }

        return $this->calculateDeliveryFee($coachId, $projectId, $agentId, $distance);
    }

    /**
     * 获取技师位置信息
     */
    private function getCoachLocation(int $coachId): array
    {
        // 从技师服务获取最新位置信息
        $location = $this->coachService->getLocation($coachId);

        // 如果没有位置信息,返回系统默认位置
        if (empty($location)) {
            return [
                'latitude' => config('business.default_latitude', 0),
                'longitude' => config('business.default_longitude', 0),
            ];
        }

        // 格式化位置数据
        return [
            'latitude' => (float) $location->latitude,
            'longitude' => (float) $location->longitude,
        ];
    }

    /**
     * 计算技师与服务地址的距离
     */
    private function calculateDistance(int $coachId, int $addressId, float $lat, float $lng): float
    {
        try {
            // 如果提供了地址ID,优先使用地址表中的经纬度
            if ($addressId > 0) {
                $address = MemberAddress::find($addressId);
                // 使用地址的经纬度,如果没有则使用传入的经纬度
                $lat = $address?->latitude ?? $lat;
                $lng = $address?->longitude ?? $lng;
            }

            // 从Redis获取技师的两个位置点信息
            // 获取常用地址位置(如家庭地址)
            $homeLocation = Redis::geopos(
                'coach_locations',
                $coachId . '_' . TechnicianLocationType::COMMON->value
            );
            // 获取当前实时位置
            $workLocation = Redis::geopos(
                'coach_locations',
                $coachId . '_' . TechnicianLocationType::CURRENT->value
            );

            $distances = [];

            // 计算与常用地址的距离
            if ($homeLocation && $homeLocation[0]) {
                $distances[] = $this->getDistance($homeLocation[0][1], $homeLocation[0][0], $lat, $lng);
            }

            // 计算与当前位置的距离
            if ($workLocation && $workLocation[0]) {
                $distances[] = $this->getDistance($workLocation[0][1], $workLocation[0][0], $lat, $lng);
            }

            // 如果有有效距离，返回最小值；否则返回0
            return ! empty($distances) ? min($distances) : 0.0;
        } catch (\Exception $e) {
            Log::error('计算距离失败', [
                'error' => $e->getMessage(),
                'coach_id' => $coachId,
                'address_id' => $addressId,
                'lat' => $lat,
                'lng' => $lng,
            ]);

            return 0.0;
        }
    }

    /**
     * 计算优惠金额
     */
    private function calculateDiscountAmount(int $projectId, int $userId): float
    {
        $discountAmount = 0;

        // TODO: 实现优惠券、活动等优惠计算逻辑

        return $discountAmount;
    }

    /**
     * 计算订单总金额
     */
    private function calculateTotalAmount(float $projectPrice, float $deliveryFee, float $discountAmount): float
    {
        $totalAmount = bcadd($projectPrice, $deliveryFee, 2);
        $totalAmount = bcsub($totalAmount, $discountAmount, 2);

        return max(0, $totalAmount);
    }

    /**
     * 计算支付金额分配
     *
     * @return array{balance_amount: float, pay_amount: float}
     */
    private function calculatePaymentDistribution(MemberUser $user, float $totalAmount, bool $useBalance): array
    {
        if (! $useBalance || $totalAmount <= 0) {
            return [
                'balance_amount' => 0,
                'pay_amount' => $totalAmount,
            ];
        }

        $availableBalance = $user->wallet?->available_balance ?? 0;

        if ($availableBalance >= $totalAmount) {
            return [
                'balance_amount' => $totalAmount,
                'pay_amount' => 0,
            ];
        }

        return [
            'balance_amount' => $availableBalance,
            'pay_amount' => bcsub($totalAmount, $availableBalance, 2),
        ];
    }

    /**
     * 获取订单抢单池列表
     *
     * @param  int  $orderId  订单ID
     * @return array 抢单池列表
     */
    public function getOrderGrabList(int $orderId): array
    {

        try {
            // 查询订单信息
            $order = Order::where('id', $orderId)
                ->whereIn('state', [OrderStatus::CREATED->value])
                ->firstOrFail();
            // 查询抢单池表
            $grabList = $order->grabRecords()->with(['coach.info'])->get();

            // 格式化返回数据
            $result = [];
            foreach ($grabList as $grab) {
                $coach = $grab->coach;

                // 计算路费
                $trafficAmount = $this->calculateDeliveryFee(
                    coachId: $coach->id,
                    projectId: $order->project_id,
                    agentId: $order->agent_id,
                    distance: $grab->distance
                );

                $result[] = [
                    'id' => $grab->id,
                    'coach_id' => $coach->id,
                    'nickname' => $coach->info->nickname,
                    'avatar' => $coach->info->avatar,
                    'distance' => $grab->distance,
                    'traffic_amount' => $trafficAmount,
                    'created_at' => $grab->created_at->format('Y-m-d H:i:s'),
                ];
            }

            return $result;
        } catch (\Exception $e) {
            Log::error('获取订单抢单池列表失败', [
                'error' => $e->getMessage(),
                'order_id' => $orderId,
            ]);
            throw $e;
        }
    }

    /**
     * 指定技师
     *
     * @param  int  $userId  用户ID
     * @param  int  $orderId  订单ID
     * @param  int  $coachId  技师ID
     * @param  int  $payment_type  支付类型
     * @return array{
     *     order_id: int,
     *     order_no: string,
     *     total_amount: float,
     *     balance_amount: float,
     *     pay_amount: float,
     *     wx_config?: array
     * }
     * @throws \Exception
     */
    public function assignCoach(int $userId, int $orderId, int $coachId, int $payment_type): array|bool
    {
        return DB::transaction(function () use ($userId, $orderId, $coachId, $payment_type) {
            try {
                // 1. 验证参数
                $order = $this->validateAssignOrder($userId, $orderId);

                // 2. 验证技师
                $coach = $this->validateCoach($coachId);

                // 3. 检查抢单池状态
                $this->validateGrabPool($order);

                // 4. 更新订单信息
                $this->updateOrderForAssign($order, $coachId);

                // 5. 创建订单记录(指派)
                $this->createAssignRecord($order, $userId, $coachId);

                if (! is_null($payment_type)) {
                    $order->payment_type = $payment_type;
                    $order->save();
                }

                $result = [
                    'order_id' => $order->id,
                    'order_no' => $order->order_no,
                    'total_amount' => $order->total_amount,
                    'balance_amount' => $order->balance_amount,
                    'pay_amount' => $order->pay_amount,
                ];

                // 6. 处理支付
                if ((int)$order->payment_type === PaymentMethod::BALANCE->value) {
                    $this->handleBalancePaymentForAssign($order, $userId, $coachId);
                    // 7. 删除订单位置的Redis记录
                    Redis::zrem('order_locations', 'order_' . $order->id);
                } else if ((int)$order->payment_type === PaymentMethod::WECHAT->value) {
                    // 获取微信支付配置
                    $paymentService = app(PaymentService::class);
                    $result['wx_payment'] = $paymentService->getPaymentConfig($order->id);
                }

                // 8. 发送通知
                $this->notifyAssignment($order, $coach);

                return $result;
            } catch (\Exception $e) {
                Log::error('指定技师失败', [
                    'error' => $e->getMessage(),
                    'order_id' => $orderId,
                    'coach_id' => $coachId,
                ]);
                throw $e;
            }
        });
    }

    /**
     * 验证指定技师的订单条件
     */
    private function validateAssignOrder(int $userId, int $orderId): Order
    {
        // 验证用户状态
        $user = MemberUser::where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->firstOrFail();

        // 验证订单状态
        $order = $user->orders()
            ->where('id', $orderId)
            ->whereIn('state', [OrderStatus::CREATED->value, OrderStatus::PAID->value])
            ->lockForUpdate()
            ->firstOrFail();

        return $order;
    }

    /**
     * 验证抢单池状态
     */
    private function validateGrabPool(Order $order): void
    {
        // 检查抢单池是否已有抢单成功记录
        $existsGrabSuccess = $order->grabRecords()
            ->where('state', OrderGrabRecordStatus::SUCCEEDED->value)
            ->exists();

        abort_if($existsGrabSuccess, 400, '该订单已抢单完成');
    }

    /**
     * 更新订单信息
     */
    private function updateOrderForAssign(Order $order, int $coachId): void
    {
        // 修改订单技师
        $order->coach_id = $coachId;

        // 待支付订单需要重新计算金额
        if ($order->state === OrderStatus::CREATED->value) {
            $amounts = $this->calculateOrderAmount(
                userId: $order->user_id,
                addressId: $order->address_id,
                coachId: $coachId,
                projectId: $order->project_id,
                agentId: $order->agent_id,
                useBalance: $order->payment_type === PaymentMethod::BALANCE->value
            );

            // 更新订单金额
            $order->fill([
                'total_amount' => $amounts['total_amount'],
                'balance_amount' => $amounts['balance_amount'],
                'pay_amount' => $amounts['pay_amount'],
                'discount_amount' => $amounts['coupon_amount'],
                'project_amount' => $amounts['project_amount'],
                'traffic_amount' => $amounts['delivery_fee'],
            ]);
        }

        $order->save();
    }

    /**
     * 处理指派订单的余额支付
     */
    private function handleBalancePaymentForAssign(Order $order, int $userId, int $coachId): void
    {
        // 验证余额
        $user = MemberUser::find($userId);
        $wallet = $user->wallet;
        abort_if($wallet->available_balance < $order->balance_amount, 400, '可用余额不足');

        // 扣除余额
        DB::transaction(function () use ($wallet, $order, $userId, $coachId) {
            // 更新钱包余额
            $wallet->decrement('total_balance', $order->balance_amount);
            $wallet->decrement('available_balance', $order->balance_amount);

            // 增加总支出
            $wallet->increment('total_expense', $order->balance_amount);

            // 更新订单状态
            $order->update(['state' => OrderStatus::PAID->value]);

            // 创建钱包支付记录
            $this->createWalletPaymentRecord($order, $wallet);

            // 创建支付成功记录
            $this->createPaymentSuccessRecord($order, $userId);

            // 更新抢单记录
            $this->updateGrabRecords($order->id, $coachId);

            // 更新订单状态为已接单
            $order->update(['state' => OrderStatus::ACCEPTED->value]);
        });
    }

    /**
     * 创建钱包支付记录
     */
    private function createWalletPaymentRecord(Order $order, $wallet): void
    {
        WalletPaymentRecord::create([
            'order_id' => $order->id,
            'wallet_id' => $wallet->id,
            'payment_no' => 'B_' . $order->id,
            'payment_method' => 'balance',
            'total_amount' => $order->balance_amount,
            'actual_amount' => 0,
            'used_wallet_balance' => $order->balance_amount,
            'used_recharge_balance' => 0,
            'state' => 'success',
        ]);
    }

    /**
     * 创建支付成功记录
     */
    private function createPaymentSuccessRecord(Order $order, int $userId): void
    {
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $userId,
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::PAID->value,
            'remark' => '余额支付成功',
        ]);
    }

    /**
     * 更新抢单记录
     */
    private function updateGrabRecords(int $orderId, int $coachId): void
    {
        OrderGrabRecord::where('order_id', $orderId)
            ->update([
                'state' => OrderGrabRecordStatus::SUCCEEDED->value,
                'coach_id' => $coachId,
            ]);
    }

    /**
     * 发送指派通知
     */
    private function notifyAssignment(Order $order, CoachUser $coach): void
    {
        // TODO: 实现通知逻辑
        // event(new OrderAssignedEvent($order, $coach));
    }

    /**
     * 生成订单核销码
     *
     * @param  int  $userId  用户ID
     * @param  int  $orderId  订单ID
     * @return array{
     *     order_id: int,
     *     qr_code: string,
     *     qr_image: ?string,
     *     expired_at: string,
     *     state: string
     * } 返回核销码信息
     *
     * @throws \Exception
     */
    public function generateVerificationCode(int $userId, int $orderId): array
    {
        try {
            // 验证订单状态和归属
            $order = $this->validateOrderForVerification($userId, $orderId);

            // 生成核销码数据
            $verificationData = $this->generateVerificationData($order->id);

            // 生成二维码图片
            $qrCodeImage = $this->generateQRCodeImage($verificationData['qr_code']);

            return [
                'order_id' => $order->id,
                'qr_code' => $verificationData['qr_code'],
                'qr_image' => $qrCodeImage,
                'expired_at' => $verificationData['expired_at'],
                'state' => $order->state,
            ];
        } catch (Exception $e) {
            $this->logError('生成订单核销码失败', $e, [
                'user_id' => $userId,
                'order_id' => $orderId,
            ]);
            throw $e;
        }
    }

    /**
     * 验证订单状态和归属
     */
    private function validateOrderForVerification(int $userId, int $orderId): Order
    {
        // 验证用户状态
        $user = MemberUser::where('id', $userId)
            ->where('state', UserStatus::OPEN->value)
            ->firstOrFail();

        // 验证订单状态和归属
        $order = $user->orders()
            ->where('id', $orderId)
            ->whereIn('state', [
                OrderStatus::PAID->value,
                OrderStatus::ACCEPTED->value,
                OrderStatus::DEPARTED->value,
                OrderStatus::ARRIVED->value,
            ])
            ->firstOrFail();

        return $order;
    }

    /**
     * 生成核销码数据
     *
     * @param  int  $orderId  订单ID
     * @return array{qr_code: string, expired_at: string}
     */
    private function generateVerificationData(int $orderId): array
    {
        // 生成时间戳
        $timestamp = time();

        // 生成签名
        $sign = md5("order_{$orderId}_{$timestamp}_" . config('app.key'));

        // 组装二维码内容
        $qrCode = "order_{$orderId}_{$timestamp}_{$sign}";

        return [
            'qr_code' => $qrCode,
            'expired_at' => date('Y-m-d H:i:s', $timestamp + 300), // 5分钟有效期
        ];
    }

    /**
     * 生成二维码图片
     *
     * @param  string  $content  二维码内容
     * @return string|null Base64编码的图片数据
     */
    private function generateQRCodeImage(string $content): ?string
    {
        // 生成SVG格式的二维码
        $qrCodeImage = QrCode::format('svg')
            ->size(200)         // 设置二维码大小为200px
            ->margin(1)         // 设置二维码边距为1
            ->errorCorrection('H')  // 设置纠错级别为最高级别H
            ->generate($content);

        // 将SVG转为base64
        return 'data:image/svg+xml;base64,' . base64_encode($qrCodeImage);
    }

    /**
     * 验证技师服务时间是否可用
     */
    public function validateServiceTime(int $coachId, string $serviceTime): bool
    {
        try {
            // 1. 验证基础参数(技师状态、时间格式等)
            $this->validateServiceTimeParams($coachId, $serviceTime);

            // 2. 获取技师工作时间安排
            $workSchedule = $this->getCoachWorkSchedule($coachId);

            // 3. 验证是否在工作时间内
            $this->validateWorkingHours($serviceTime, $workSchedule);

            // 4. 检查是否与其他订单时间冲突
            $this->checkTimeConflicts($coachId, $serviceTime);

            return true;
        } catch (Exception $e) {
            // 记录错误日志
            $this->logError('验证服务时间失败', $e, [
                'coach_id' => $coachId,
                'service_time' => $serviceTime,
            ]);
            throw $e;
        }
    }

    /**
     * 检查订单时间冲突
     */
    private function checkTimeConflicts(int $coachId, string $serviceTime): void
    {
        $serviceDateTime = Carbon::parse($serviceTime);

        // 获取服务时长配置(默认2小时)
        $serviceDuration = config('business.default_service_duration', 120);

        // 计算本次服务的结束时间
        $serviceEndTime = $serviceDateTime->copy()->addMinutes($serviceDuration);

        // 检查是否与其他订单时间重叠
        $conflictOrder = Order::where('coach_id', $coachId)
            ->whereIn('state', [
                OrderStatus::PAID->value,            // 已支付
                OrderStatus::ACCEPTED->value,        // 已接单
                OrderStatus::SERVICING->value,         // 服务中
            ])
            ->where(function ($query) use ($serviceDateTime, $serviceEndTime) {
                $query->where(function ($q) use ($serviceDateTime) {
                    // 检查服务开始时间是否冲突
                    $q->where('service_time', '<=', $serviceDateTime)
                        ->where('service_end_time', '>', $serviceDateTime);
                })->orWhere(function ($q) use ($serviceEndTime) {
                    // 检查服务结束时间是否冲突
                    $q->where('service_time', '<', $serviceEndTime)
                        ->where('service_end_time', '>=', $serviceEndTime);
                });
            })
            ->first();

        // 如果存在时间冲突,抛出异常
        abort_if(
            $conflictOrder,
            400,
            '该时间段技师已有其他订单'
        );
    }

    /**
     * 订单评价
     *
     * @param  int  $userId  用户ID
     * @param  int  $orderId  订单ID
     * @param array{
     *     score: int,
     *     content: string,
     *     images: ?array,
     *     tags: ?array
     * } $data 评价数据
     * @return array{message: string}
     *
     * @throws \Exception
     */
    public function evaluateOrder(int $userId, int $orderId, array $data): array
    {
        return DB::transaction(function () use ($userId, $orderId, $data) {
            try {
                // 1. 验证订单状态
                $order = $this->validateOrderForEvaluation($userId, $orderId);

                // 2. 创建评价记录
                $evaluation = $this->createEvaluation($order, $data);

                // 3. 更新技师评分
                // TODO: 更新技师评分
                $this->updateCoachScore($order->coach_id);

                // 4. 更新订单状态
                $this->updateOrderEvaluationStatus($order);

                // 5. 创建评价奖励
                // TODO: 创建评价奖励
                // $this->createEvaluationReward($order, $evaluation);

                // 6. 发送评价通知
                // $this->notifyEvaluation($order, $evaluation);

                return ['message' => '评价成功'];
            } catch (Exception $e) {
                $this->logError('订单评价失败', $e, [
                    'user_id' => $userId,
                    'order_id' => $orderId,
                    'data' => $data,
                ]);
                throw $e;
            }
        });
    }

    /**
     * 验证订单评价条件
     */
    private function validateOrderForEvaluation(int $userId, int $orderId): Order
    {
        // 获取订单信息
        $order = Order::where('id', $orderId)
            ->where('user_id', $userId)
            ->where('state', OrderStatus::LEFT->value)
            ->firstOrFail();

        // 检查是否已评价
        abort_if(
            $order->evaluation()->exists(),
            400,
            '订单已评价'
        );

        // 检查评价时效（7天内可评价）
        $evaluationExpireDays = config('business.evaluation_expire_days', 7);
        abort_if(
            $order->finish_time->addDays($evaluationExpireDays)->isPast(),
            400,
            '评价已过期'
        );

        return $order;
    }

    /**
     * 更新订单评价状态
     */
    private function updateOrderEvaluationStatus(Order $order): void
    {
        // 创建订单记录
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $order->user_id,
            'object_type' => MemberUser::class,
            'state' => OrderRecordStatus::EVALUATED->value,
            'remark' => '用户评价完成',
        ]);
    }

    /**
     * 创建评价奖励
     */
    // private function createEvaluationReward(Order $order, OrderEvaluation $evaluation): void
    // {
    //     // 获取评价奖励配置
    //     $rewardAmount = config('business.evaluation_reward_amount', 0);

    //     if ($rewardAmount <= 0) {
    //         return;
    //     }

    //     // 更新用户钱包
    //     $wallet = $order->user->wallet;
    //     $wallet->increment('total_balance', $rewardAmount);
    //     $wallet->increment('available_balance', $rewardAmount);

    //     // 创建奖励记录
    //     $wallet->transRecords()->create([
    //         'amount' => $rewardAmount,
    //         'trans_type' => 'evaluation_reward',
    //         'owner_type' => OrderEvaluation::class,
    //         'owner_id' => $evaluation->id,
    //         'remark' => '评价奖励',
    //         'before_balance' => $wallet->total_balance - $rewardAmount,
    //         'after_balance' => $wallet->total_balance,
    //         'state' => 'success',
    //     ]);
    // }

    /**
     * 发送评价通知
     */
    // private function notifyEvaluation(Order $order, OrderEvaluation $evaluation): void
    // {
    //     // TODO: 实现评价通知逻辑
    //     // 1. 通知技师
    //     // event(new OrderEvaluatedEvent($order, $evaluation));

    //     // 2. 更新评价缓存
    //     // Cache::tags(['coach_evaluations'])->forget("coach:{$order->coach_id}");
    // }

    private function getNearbyCoaches(float $lat, float $lng, float $radius = 5.0): Collection
    {
        // 获取在线技师列表
        return CoachUser::query()
            ->with(['info'])
            ->where('state', TechnicianStatus::ACTIVE->value)
            ->whereHas('info', fn($q) => $q->where('state', TechnicianAuthStatus::PASSED->value))
            ->get();
    }

    private function validateCoachForGrab(int $coachId): CoachUser
    {
        $coach = CoachUser::query()
            ->with(['info'])
            ->where('id', $coachId)
            ->where('state', TechnicianStatus::ACTIVE->value)
            ->first();

        abort_if(! $coach, 400, '技师不存在或未激活');

        // 验证技师认证状态
        abort_if(
            ! $coach->info || $coach->info->state !== TechnicianAuthStatus::PASSED->value,
            400,
            '技师未通过认证'
        );

        return $coach;
    }

    public function getOrder(int $orderId): Order
    {
        $order = Order::find($orderId);
        abort_if(! $order, 404, '订单不存在');

        return $order;
    }

    private function findOrder(int $orderId): Order
    {
        $order = Order::find($orderId);
        abort_if(! $order, 404, sprintf('订单[%d]不存在', $orderId));

        return $order;
    }

    private function getOrderForPayment(int $orderId): Order
    {
        $order = Order::where('id', $orderId)
            ->whereIn('state', [OrderStatus::CREATED->value])
            ->first();

        abort_if(! $order, 404, sprintf('订单[%d]不存在', $orderId));
        abort_if(
            $order->state !== OrderStatus::CREATED->value,
            422,
            sprintf('订单[%d]状态为[%s]，不允许支付', $orderId, $order->state)
        );

        return $order;
    }

    /**
     * 评价订单
     *
     * @param int $userId 用户ID
     * @param array $data 评价数据
     */
    public function rateOrder(int $userId, array $data): void
    {
        // 查找订单并加载关联数据
        $order = Order::query()
            ->where('user_id', $userId)
            ->where('id', $data['order_id'])
            ->first();

        // 检查订单是否存在
        abort_if(!$order, 404, sprintf('订单[%d]不存在', $data['order_id']));

        // 检查订单是否属于当前用户
        abort_if((int)$order->user_id !== $userId, 403, '无权评价此订单');

        // 检查订单状态 - 确保类型一致性比较
        abort_if((int)$order->state !== OrderStatus::LEFT->value, 400, sprintf('订单状态为[%s]，不允许评价', $order->state));

        // 检查是否已评价
        abort_if($order->comments()->exists(), 400, '订单已评价');

        // 验证评分范围
        foreach (['service_score', 'appearance_score', 'attitude_score', 'professional_score'] as $scoreField) {
            if (isset($data[$scoreField])) {
                $score = (float)$data[$scoreField];
                abort_if($score < 1 || $score > 5, 400, '评分范围必须在1-5之间');
            }
        }

        DB::transaction(function () use ($order, $data, $userId) {
            // 创建评价记录
            $comment = $order->comments()->create([
                'user_id' => $userId,
                'coach_id' => $order->coach_id,
                'service_score' => isset($data['service_score']) ? (float)$data['service_score'] : 5.0,
                'appearance_score' => isset($data['appearance_score']) ? (float)$data['appearance_score'] : 5.0,
                'attitude_score' => isset($data['attitude_score']) ? (float)$data['attitude_score'] : 5.0,
                'professional_score' => isset($data['professional_score']) ? (float)$data['professional_score'] : 5.0,
                'tags' => $data['tags'] ?? [],
                'content' => $data['content'] ?? '',
                'images' => $data['images'] ?? [],
            ]);

            // 更新订单状态为已完成
            $order->update(['state' => OrderStatus::COMPLETED->value]);

            // 更新技师评分
            $this->updateCoachScore($order->coach_id);

            // 记录订单状态变更
            OrderRecord::create([
                'order_id' => $order->id,
                'object_id' => $userId,
                'object_type' => MemberUser::class,
                'state' => OrderRecordStatus::EVALUATED->value,
                'remark' => '用户完成评价',
            ]);
        });
    }

    /**
     * 更新技师评分
     *
     * @param int $coachId 技师ID
     */
    private function updateCoachScore(int $coachId): void
    {
        $coach = CoachUser::find($coachId);
        if (!$coach) {
            return;
        }

        // 计算技师的各维度平均分
        $avgScores = DB::table('order_comments')
            ->where('coach_id', $coachId)
            ->whereExists(function ($query) {
                $query->select(DB::raw(1))
                    ->from('order')
                    ->whereColumn('order_comments.order_id', 'order.id')
                    ->where('order.state', OrderStatus::COMPLETED->value);
            })
            ->select([
                DB::raw('AVG(service_score) as avg_service_score'),
                DB::raw('AVG(appearance_score) as avg_appearance_score'),
                DB::raw('AVG(attitude_score) as avg_attitude_score'),
                DB::raw('AVG(professional_score) as avg_professional_score'),
                DB::raw('COUNT(*) as total_comments')
            ])
            ->first();

        // 获取订单统计
        $orderCounts = DB::table('order')
            ->where('coach_id', $coachId)
            ->select([
                DB::raw('COUNT(*) as total_orders'),
                DB::raw('COUNT(CASE WHEN state = ' . OrderStatus::COMPLETED->value . ' THEN 1 END) as completed_orders')
            ])
            ->first();

        if ($avgScores) {
            // 计算总体平均分
            $overallScore = round(($avgScores->avg_service_score +
                $avgScores->avg_appearance_score +
                $avgScores->avg_attitude_score +
                $avgScores->avg_professional_score) / 4, 1);

            // 更新或创建统计记录
            CoachStatistic::updateOrCreate(
                ['coach_id' => $coachId],
                [
                    'score' => $overallScore,
                    'service_score' => round($avgScores->avg_service_score, 1),
                    'appearance_score' => round($avgScores->avg_appearance_score, 1),
                    'attitude_score' => round($avgScores->avg_attitude_score, 1),
                    'professional_score' => round($avgScores->avg_professional_score, 1),
                    'comment_count' => $avgScores->total_comments,
                    'order_count' => $orderCounts->total_orders,
                    'completed_order_count' => $orderCounts->completed_orders
                ]
            );
        }
    }

    /**
     * 生成退款单号
     * 格式：RF + 年月日时分秒 + 订单ID后4位 + 4位随机数
     * 示例：RF202403151428120001RAND
     *
     * @param Order $order 订单对象
     * @return string 退款单号
     */
    private function generateRefundNo(Order $order): string
    {
        // 获取时间戳
        $timestamp = now()->format('YmdHis');

        // 获取订单ID后4位，不足4位前面补0
        $orderIdSuffix = str_pad(substr($order->id, -4), 4, '0', STR_PAD_LEFT);

        // 生成4位随机数
        $random = str_pad(random_int(0, 9999), 4, '0', STR_PAD_LEFT);

        // 组合退款单号：前缀 + 时间戳 + 订单ID后缀 + 随机数
        return "RF{$timestamp}{$orderIdSuffix}{$random}";
    }

    /**
     * 用户删除订单
     *
     * 业务逻辑:
     * 1. 验证订单是否存在且属于当前用户
     * 2. 验证订单状态是否允许删除(已完成、已取消等)
     * 3. 更新订单的user_deleted_at字段
     * 4. 记录删除操作
     *
     * @param int $userId 用户ID
     * @param int $orderId 订单ID
     * @return array
     * @throws \Exception
     */
    public function deleteOrder(int $userId, int $orderId): array
    {
        return DB::transaction(function () use ($userId, $orderId) {
            // 验证订单是否存在且属于当前用户
            $order = Order::where('id', $orderId)
                ->where('user_id', $userId)
                ->whereNull('user_deleted_at')  // 确保订单未被用户删除
                ->first();

            abort_if(!$order, 404, '订单不存在');

            // 验证订单状态是否允许删除
            // 允许删除未支付、已完成、已取消、已退款等状态的订单
            $allowedStates = [
                OrderStatus::CREATED->value,    // 未支付
                OrderStatus::COMPLETED->value,  // 已完成
                OrderStatus::CANCELLED->value,  // 已取消
                OrderStatus::REFUNDED->value,   // 已退款
            ];

            abort_if(!in_array($order->state, $allowedStates), 422, '当前订单状态不允许删除');

            // 标记订单为用户已删除
            $order->update([
                'user_deleted_at' => now()
            ]);

            // 创建订单记录
            $this->createOrderRecord(
                $order,
                $userId,
                'user',
                OrderRecordStatus::DELETED,
                '用户删除订单'
            );

            return [
                'message' => '订单删除成功'
            ];
        });
    }

    /**
     * 获取评价标签列表
     *
     * @return array
     */
    public function getCommentTags(): array
    {
        return OrderCommentTag::query()
            ->where('state', 1)
            ->get(['id', 'tag_name'])
            ->toArray();
    }

    /**
     * 创建订单指派记录
     *
     * @param Order $order 订单对象
     * @param int $userId 操作用户ID
     * @return void
     */
    private function createAssignRecord(Order $order, int $userId, int $coachId): void
    {
        OrderRecord::create([
            'order_id' => $order->id,
            'object_id' => $userId,
            'object_type' => MemberUser::class,
            'new_coach_id' => $coachId,
            'state' => OrderRecordStatus::ASSIGNED->value,
            'remark' => '用户指定技师',
        ]);
    }
}