payment-platform/backend/app/plugin/module_payment/openapi/service.py

from app.api.v1.module_system.auth.schema import AuthSchema
from app.core.exceptions import CustomException
from app.core.logger import log
from app.utils.snowflake import get_snowflake_id_str, get_snowflake_id
from typing import Optional
import time
import json

from .crud import OpenConfCRUD, OpenTransferCRUD
from .schema import OpenConfOutSchema, OpenConfUpdateSchema, OpenTransferSchema, OpenTransferOutSchema, \
    OpenTransferQuerySchema
from app.plugin.module_payment.account import AccountService, TransferCRUD, TransferOutSchema
import aiohttp
import asyncio


async def fetch_manual_retry(session, url, notify_id, app_id, timestamp, content, max_retries=2):
    for attempt in range(max_retries):
        try:
            log.debug("第 {} 次尝试: {}", attempt + 1, url)
            form_data = aiohttp.FormData()
            form_data.add_field('notify_id', notify_id)
            form_data.add_field('app_id', app_id)
            form_data.add_field('timestamp', timestamp)
            form_data.add_field('content', content)
            async with session.post(url=url, data=form_data) as response:
                if response.status == 200:
                    return await response.text()
                elif response.status in [500, 502, 503]:
                    # 服务器错误，准备重试
                    pass
                else:
                    # 客户端错误，直接抛出，不再重试
                    response.raise_for_status()

        except (aiohttp.ClientError, asyncio.TimeoutError) as e:
            if attempt < max_retries - 1:
                # 计算等待时间 (简单的指数退避: 1s, 2s, 4s...)
                wait_time = 2 ** attempt
                log.debug("等待 {} 秒后重试...", wait_time)
                await asyncio.sleep(wait_time)
            else:
                log.debug("达到最大重试次数，放弃。")
            return None
    return None


class OpenTransferService:

    @classmethod
    async def open_return_service(
        cls,
        auth: AuthSchema,
        order_no: str,
    ) -> bool:
        """
        发送转账回调通知
        
        参数:
        - auth: 认证信息
        - order_no: 订单号
        
        返回:
        - bool: 是否成功发送通知
        """
        try:
            transfer_crud = TransferCRUD(auth)
            transfer = await transfer_crud.get_by_order_no(order_no)

            if not transfer or not transfer.out_biz_no:
                log.info("回调通知: 订单不存在或缺少 out_biz_no, order_no={}", order_no)
                return False

            open_transfer_crud = OpenTransferCRUD(auth)
            open_data = await open_transfer_crud.get(out_biz_no=transfer.out_biz_no)

            if not open_data:
                log.info("回调通知: 开放转账记录不存在, out_biz_no={}", transfer.out_biz_no)
                return False

            auth.tenant_id = open_data.tenant_id
            conf = await OpenConfService.get_conf_service(auth)
            if not conf:
                log.info("回调通知: 开放转账配置不存在, tenant_id={}", auth.tenant_id)
                return False

            if not conf.return_url:
                log.info("回调通知: 未配置回调地址, tenant_id={}", auth.tenant_id)
                return False

            result = TransferOutSchema.model_validate(transfer).model_dump(exclude_none=True)
            result["third_biz_no"] = open_data.third_biz_no
            
            notify_id = f"n{get_snowflake_id()}"
            timestamp = int(time.time() * 1000)
            content = json.dumps(result)

            timeout = aiohttp.ClientTimeout(total=30)
            async with aiohttp.ClientSession(timeout=timeout) as session:
                log.info("回调通知: order_no={}, url={}, notify_id={}", order_no, conf.return_url, notify_id)
                await fetch_manual_retry(
                    session, conf.return_url, notify_id, conf.app_id, timestamp, content
                )

        except Exception as e:
            log.error("回调通知异常: order_no={}, error={}", order_no, e, exc_info=True)
            return False


    @classmethod
    async def open_query_service(
        cls,
        auth: AuthSchema,
        query: OpenTransferQuerySchema
    ) -> dict:
        crud = OpenTransferCRUD(auth)

        transfer_data = await crud.get(third_biz_no=query.third_biz_no)
        if transfer_data is None:
            raise CustomException("三方订单号不存在")
        
        result = await AccountService.transfer_detail_service(auth=auth, out_biz_no=transfer_data.out_biz_no)
        result_dict = result.model_dump(exclude_none=True)
        result_dict.update({"third_biz_no": transfer_data.third_biz_no})
        return result_dict

    @classmethod
    async def open_transfer_service(
        cls,
        auth: AuthSchema,
        data: OpenTransferSchema
    ) -> OpenTransferOutSchema:
        third_biz_no = data.third_biz_no
        if not third_biz_no:
            raise CustomException("三方订单号不能为空")

        # 先查询是否存在三方订单号
        crud = OpenTransferCRUD(auth)
        existing = await crud.get(third_biz_no=third_biz_no)
        if existing:
            raise CustomException("三方订单号已存在")

        # 执行转账记录创建
        result = await AccountService.transfer_service(auth=auth, data=data)
        log.info(f"租户资金专户转账发起成功: 企业: {data.enterprise_id}, 金额: {data.amount}")

        # 保存三方订单号关联记录
        create_data = {
            "third_biz_no": third_biz_no,
            "out_biz_no": result.out_biz_no,
        }
        await crud.create(create_data)

        return OpenTransferOutSchema(
            status=result.status,
            order_no=result.order_no,
            third_biz_no=third_biz_no,
        )



class OpenConfService:
    """开放配置服务层"""

    @classmethod
    async def get_conf_service(
        cls,
        auth: AuthSchema,
    ) -> Optional[OpenConfOutSchema]:
        """
        查询开放配置
        """
        crud = OpenConfCRUD(auth)
        result = await crud.get_first()

        if result is not None:
             return OpenConfOutSchema.model_validate(result)
        return None

    @classmethod
    async def save_conf_service(
        cls,
        auth: AuthSchema,
        data: OpenConfUpdateSchema,
    ) -> OpenConfOutSchema:
        """
        创建/更新开放配置（前端只允许配置回调地址）
        """
        # 先查询是否存在配置

        update_data = {
            "notify_url": data.notify_url,
            "return_url": data.return_url,
        }

        crud = OpenConfCRUD(auth)
        existing = await crud.get_first()

        if not existing:
            update_data["app_id"] = get_snowflake_id_str(auth.tenant_id)
            update_data["gateway_url"] = "https://api.qcsj88888.com"
            result = await crud.create(update_data)
            log.info(f"开放配置创建成功: 租户ID: {auth.tenant_id}")
        else:
            result = await crud.update(existing.id, update_data)
            log.info(f"开放配置更新成功: 租户ID: {auth.tenant_id}")

        return OpenConfOutSchema.model_validate(result)