<?php

namespace App\Services\Client;

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

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
    {
        try {
            // 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);

                // 获取技师信息和可用时间
                $coach = $this->validateCoach($data['coach_id']);
                $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: $data['distance'] ?? 0,
                    lat: $data['latitude'] ?? 0,
                    lng: $data['longitude'] ?? 0
                );

                return [
                    'wallet' => $user->wallet,
                    'coach' => $coach,
                    'project' => $project,
                    'address' => $user->address,
                    'amounts' => $amounts,
                    'availableTimeSlots' => $availableTimeSlots,
                ];
            });
        } catch (Exception $e) {
            $this->logError('订单初始化失败', $e, [
                'userId' => $userId,
                'data' => $data,
            ]);
            throw $e;
        }
    }

    /**
     * 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 {
                // 1. 验证基础数据
                $this->validateOrderData($userId, $data);
                // 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::PAID->value,
                            OrderStatus::ACCEPTED->value,
                            OrderStatus::STARTED->value,
                            OrderStatus::SERVING->value,
                        ]),
                        422,
                        '原订单状态不允许加钟'
                    );

                    $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
                    if ($amounts['balance_amount'] > 0) {
                        $this->processBalancePayment($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);

                }

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

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

            } 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
    {
        return Order::create([
            'order_no' => $this->generateOrderNo(),
            '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,
            '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
                : $data['payment_type'],
            'latitude' => $address->latitude,
            'longitude' => $address->longitude,
            'location' => $address->location,
            'address' => $address->detail,
            'area_code' => $address->area_code,
            'type' => $data['order_type'],
        ]);
    }

    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::SERVING->value, OrderStatus::FINISHED->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::SERVING->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. 计算取消���用
                $cancelAmounts = $this->calculateCancelAmount($order);

                // 3. 处理退款
                $this->processCancelRefund($order, $cancelAmounts);

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

                // 5. 创建取消记录
                $this->createCancelRecords($order, $cancelAmounts, $reason);

                // 6. 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::CREATED->value,
                OrderStatus::PAID->value,
                OrderStatus::ACCEPTED->value,
            ])
            ->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
    {
        $penaltyAmount = 0;

        // 计算违约金（根据订单状态和时间）
        if ($order->state === OrderStatus::ACCEPTED->value) {
            // 已接单取消，收取10%违约金
            $penaltyAmount = bcmul($order->total_amount, '0.1', 2);
        }

        // 计算实际退款金额
        $totalRefund = bcsub($order->total_amount, $penaltyAmount, 2);

        // 分配退款金额（优先退还支付金额）
        $balanceRefund = min($order->balance_amount, $totalRefund);
        $paymentRefund = bcsub($totalRefund, $balanceRefund, 2);

        return [
            'total_refund' => $totalRefund,
            'balance_refund' => $balanceRefund,
            'payment_refund' => $paymentRefund,
            'penalty_amount' => $penaltyAmount,
        ];
    }

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

        // 处理支付退款
        if ($cancelAmounts['payment_refund'] > 0) {
            $this->processPaymentCancelRefund($order, $cancelAmounts['payment_refund']);
        }
    }

    /**
     * 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' => 'cancel_refund',
            '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' => 'success',
        ]);
    }

    /**
     * 处理支付退款
     */
    private function processPaymentCancelRefund(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, array $cancelAmounts, ?string $reason): void
    {
        // TODO: 创建取消记录
        // 创建取消记录
        // $order->cancelRecords()->create([
        //     'total_refund_amount' => $cancelAmounts['total_refund'],
        //     'balance_refund_amount' => $cancelAmounts['balance_refund'],
        //     'payment_refund_amount' => $cancelAmounts['payment_refund'],
        //     'penalty_amount' => $cancelAmounts['penalty_amount'],
        //     'remark' => $reason ?? '',
        //     'state' => 'success',
        // ]);

        // 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);

                // 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::SERVING->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::FINISHED->value;
        $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::FINISHED->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::LEFT->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;
            }
        });
    }

    /**
     * 获取订单列表
     *
     * @param  int  $userId  用户ID
     * @param array{
     *     state: ?string,
     *     start_date: ?string,
     *     end_date: ?string,
     *     project_id: ?int,
     *     coach_id: ?int,
     *     order_no: ?string,
     *     per_page: ?int,
     *     page: ?int
     * } $filters 过滤条件
     *
     * @throws \Exception
     */
    public function getOrderList(int $userId, array $filters = [])
    {
        try {

            // 1. 验证用户
            $user = $this->validateUserForQuery($userId);

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

            // 3. 应用过滤条件
            $this->applyOrderFilters($query, $filters);

            // 4. 加载关联数据并分页
            return $this->paginateOrderList($query, $filters);

        } catch (Exception $e) {
            $this->logError('获取订单列表失败', $e, [
                'user_id' => $userId,
                'filters' => $filters,
            ]);
            throw $e;
        }
    }

    /**
     * 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 $user->orders()
            ->with([
                'coach' => function ($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',
            ]);
    }

    /**
     * 分页获取订���列表
     */
    private function paginateOrderList($query, array $filters)
    {

        $paginatedOrders = $query->orderBy('created_at', 'desc')
            ->paginate(
                perPage: $filters['per_page'] ?? 10,
                page: $filters['page'] ?? 1
            );

        $formattedOrders = $paginatedOrders->map(function ($order) {
            return $this->formatOrderListItem($order);
        });

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

    /**
     * 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_description' => $this->getOrderStateDescription($order->state),
            'total_amount' => $order->total_amount,
            'service_time' => $order->service_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_description' => $this->getOrderStateDescription($order->state),
            '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,
            'created_at' => $order->created_at->toDateTimeString(),
            'remark' => $order->remark,
            '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,
            ] : 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 $filters): void
    {
        // 按状态筛选
        if (! empty($filters['state'])) {
            $query->where('state', $filters['state']);
        }

        // 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']}%");
        }
    }

    /**
     * 获取订单状态描述
     */
    private function getOrderStateDescription(string $state): string
    {
        return match ($state) {
            OrderStatus::CREATED->value => '待支付',
            OrderStatus::PAID->value => '待接单',
            OrderStatus::ACCEPTED->value => '已接单',
            OrderStatus::DEPARTED->value => '已出发',
            OrderStatus::ARRIVED->value => '已到达',
            OrderStatus::SERVING->value => '服务中',
            OrderStatus::FINISHED->value => '已完成',
            OrderStatus::CANCELLED->value => '已取消',
            OrderStatus::REFUNDED->value => '已退款',
            default => '未知状态',
        };
    }

    /**
     * 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
    {
        // 初始化扣除金额
        $deductAmount = 0;

        // 根据订单状态计算违约金
        switch ($order->state) {
            case OrderStatus::ACCEPTED->value:
                // 已接单状态扣除订单金额的20%作为违约金
                $deductAmount = bcmul($order->total_amount, '0.2', 2);
                break;

            case OrderStatus::DEPARTED->value:
                // 已出发状态扣除订单金额的50%作为违约金
                $deductAmount = bcmul($order->total_amount, '0.5', 2);
                break;
        }

        // 计算实际可退金额(总金额减去违约金)
        $totalRefund = bcsub($order->total_amount, $deductAmount, 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,       // 总退款金额
            'balance_amount' => $balanceRefund,   // 退还到余额的金额
            'payment_refund' => $paymentRefund,   // 退还到支付账户的金额
            'deduct_amount' => $deductAmount,     // 扣除的违约金
        ];
    }

    /**
     * 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' => 'refund',
            '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' => 'success',
        ]);
    }

    /**
     * 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
     */
    private function updateOrderRefundStatus(Order $order): void
    {
        $order->update([
            'state' => OrderStatus::REFUNDED->value,
            'refund_time' => now(),
        ]);
    }

    /**
     * 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);

        } 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
     * @return float 路费金额(元)
     */
    private function calculateFeeByRules(float $distance, array $rules): float
    {
        // 1. 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'])
        );

        // 2. 检查是否在免费距离内
        if ($distance <= $rules['free_distance']) {
            return 0;
        }

        // 3. 计算实际计费距离
        $chargeDistance = max(0, $distance - $rules['free_distance']);

        // 4. 检查是否达到最小计费距离
        if ($chargeDistance < $rules['min_distance']) {
            return $rules['min_fee'];
        }

        // 5. 计算基础路费
        $fee = bcmul($chargeDistance, $rules['per_km_fee'], 2);

        // 6. 应用最小路费限制
        $fee = max($fee, $rules['min_fee']);

        // 7. 应用最大路费限制
        $fee = min($fee, $rules['max_fee']);

        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;
                $result[] = [
                    'id' => $grab->id,
                    'coach_id' => $coach->id,
                    'nickname' => $coach->info->nickname,
                    'avatar' => $coach->info->avatar,
                    'distance' => $grab->distance,
                    '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
     *
     * @throws \Exception
     */
    public function assignCoach(int $userId, int $orderId, int $coachId): bool
    {
        return DB::transaction(function () use ($userId, $orderId, $coachId) {
            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);

                // 6. 处理支付
                if ($order->payment_type === PaymentMethod::BALANCE->value) {
                    $this->handleBalancePaymentForAssign($order, $userId, $coachId);
                }

                // 7. 发送通知
                $this->notifyAssignment($order, $coach);

                return true;

            } catch (Exception $e) {
                $this->logError('指定技师失败', $e, [
                    'user_id' => $userId,
                    '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);

            // 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);
        });
    }

    /**
     * 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
    {
        try {
            // 生成PNG格式的二维码
            $qrCodeImage = QrCode::format('png')
                ->size(200)         // 设置二维码大小为200px
                ->margin(1)         // 设置二维码边距为1
                ->errorCorrection('H')  // 设置纠错级别为最高级别H
                ->generate($content);

            // 将PNG转为base64
            return 'data:image/png;base64,'.base64_encode($qrCodeImage);

        } catch (Exception $e) {
            Log::error('生成二维码图片失败:', [
                'content' => $content,
                'error' => $e->getMessage(),
            ]);

            return null;
        }
    }

    /**
     * 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', $coachId)
            ->whereIn('state', [
                OrderStatus::PAID->value,            // 已支付
                OrderStatus::ACCEPTED->value,        // 已接单
                OrderStatus::SERVING->value,         // 服务中
            ])
            ->where(function ($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::FINISHED->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;
    }

    /**
     * 更新技师评分
     */
    // private function updateCoachScore(int $coachId): void
    // {
    //     $coach = CoachUser::findOrFail($coachId);

    //     // 计算平均分
    //     $avgScore = OrderEvaluation::where('coach_id', $coachId)
    //         ->where('state', 'normal')
    //         ->avg('score');

    //     // 更新技师评分
    //     $coach->info()->update([
    //         'score' => round($avgScore, 1),
    //         'evaluation_count' => OrderEvaluation::where('coach_id', $coachId)
    //             ->where('state', 'normal')
    //             ->count(),
    //     ]);
    // }

    /**
     * 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;
    }
}