<?php

namespace App\Module\Transfer\Services;

use App\Module\Transfer\Dtos\TransferAppDto;
use App\Module\Transfer\Dtos\TransferOrderDto;
use App\Module\Transfer\Logics\TransferLogic;
use App\Module\Transfer\Models\TransferApp;
use App\Module\Transfer\Models\TransferOrder;

/**
 * Transfer模块对外服务接口
 * 供其他模块调用的主要服务类
 */
class TransferService
{
    /**
     * 创建转出订单
     * 
     * @param array $data 订单数据
     * @return TransferOrderDto|string 成功返回DTO，失败返回错误信息
     */
    public static function createTransferOut(array $data): TransferOrderDto|string
    {
        try {
            $order = TransferLogic::createTransferOut($data);
            return TransferOrderDto::fromModel($order);
        } catch (\Exception $e) {
            return $e->getMessage();
        }
    }

    /**
     * 创建转入订单
     * 
     * @param array $data 订单数据
     * @return TransferOrderDto|string 成功返回DTO，失败返回错误信息
     */
    public static function createTransferIn(array $data): TransferOrderDto|string
    {
        try {
            $order = TransferLogic::createTransferIn($data);
            return TransferOrderDto::fromModel($order);
        } catch (\Exception $e) {
            return $e->getMessage();
        }
    }

    /**
     * 查询订单信息
     * 
     * @param int $orderId 订单ID
     * @param int|null $userId 用户ID（可选，用于权限验证）
     * @return TransferOrderDto|null
     */
    public static function getOrderInfo(int $orderId, ?int $userId = null): ?TransferOrderDto
    {
        $query = TransferOrder::where('id', $orderId);
        
        if ($userId !== null) {
            $query->where('user_id', $userId);
        }
        
        $order = $query->first();
        
        return $order ? TransferOrderDto::fromModel($order) : null;
    }

    /**
     * 根据外部订单ID查询订单信息
     *
     * @param string $outOrderId 外部订单ID
     * @param int $outId 开放接口ID
     * @return TransferOrderDto|null
     */
    public static function getOrderByOutId(string $outOrderId, int $outId): ?TransferOrderDto
    {
        $order = TransferOrder::where('out_order_id', $outOrderId)
            ->where('out_id', $outId)
            ->first();

        return $order ? TransferOrderDto::fromModel($order) : null;
    }

    /**
     * 获取用户可用的划转应用列表
     * 
     * @param int $userId 用户ID
     * @return TransferAppDto[]
     */
    public static function getAvailableApps(int $userId): array
    {
        $apps = TransferApp::where('is_enabled', true)->get();
        
        return $apps->map(function ($app) {
            return TransferAppDto::fromModel($app);
        })->toArray();
    }

    /**
     * 获取用户订单列表
     * 
     * @param int $userId 用户ID
     * @param array $filters 筛选条件
     * @return array
     */
    public static function getUserOrders(int $userId, array $filters = []): array
    {
        $query = TransferOrder::where('user_id', $userId);
        
        // 应用筛选条件
        if (isset($filters['type'])) {
            $query->where('type', $filters['type']);
        }
        
        if (isset($filters['status'])) {
            $query->where('status', $filters['status']);
        }
        
        if (isset($filters['transfer_app_id'])) {
            $query->where('transfer_app_id', $filters['transfer_app_id']);
        }
        
        if (isset($filters['start_date'])) {
            $query->where('created_at', '>=', $filters['start_date']);
        }
        
        if (isset($filters['end_date'])) {
            $query->where('created_at', '<=', $filters['end_date']);
        }
        
        // 分页参数
        $page = $filters['page'] ?? 1;
        $perPage = $filters['per_page'] ?? 20;
        
        $orders = $query->orderBy('created_at', 'desc')
            ->paginate($perPage, ['*'], 'page', $page);
        
        return [
            'data' => $orders->items(),
            'current_page' => $orders->currentPage(),
            'per_page' => $orders->perPage(),
            'total' => $orders->total(),
            'last_page' => $orders->lastPage(),
        ];
    }

    /**
     * 获取应用配置信息
     * 
     * @param int $appId 应用ID
     * @return TransferAppDto|null
     */
    public static function getAppConfig(int $appId): ?TransferAppDto
    {
        $app = TransferApp::find($appId);
        
        return $app ? TransferAppDto::fromModel($app) : null;
    }

    /**
     * 根据应用标识获取配置信息
     * 
     * @param string $keyname 应用标识
     * @return TransferAppDto|null
     */
    public static function getAppByKeyname(string $keyname): ?TransferAppDto
    {
        $app = TransferApp::where('keyname', $keyname)
            ->where('is_enabled', true)
            ->first();
            
        return $app ? TransferAppDto::fromModel($app) : null;
    }

    /**
     * 处理回调结果
     * 
     * @param array $callbackData 回调数据
     * @return bool
     */
    public static function processCallback(array $callbackData): bool
    {
        try {
            return TransferLogic::processCallback($callbackData);
        } catch (\Exception $e) {
            \Log::error('Transfer callback processing failed', [
                'error' => $e->getMessage(),
                'data' => $callbackData
            ]);
            return false;
        }
    }
}