5762f00d40
小程序前端仍传 wechat；后台可切换 wechat/fubei，支持配置多套付呗并退款按原通道路由。 Co-authored-by: Cursor <cursoragent@cursor.com>
63 lines
2.3 KiB
Python
63 lines
2.3 KiB
Python
"""按支付流水选择退款通道：付呗单走付呗，其余走原微信退款逻辑。"""
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from __future__ import annotations
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import logging
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import random
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import string
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import time
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from typing import Any, Dict, Optional
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from jituan.constants import PAY_CHANNEL_FUBEI_WX_MINI
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from jituan.services.club_payment_channel import get_fubei_config
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from jituan.services import fubei_client
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from jituan.services.mini_pay_router import get_pay_ledger
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logger = logging.getLogger(__name__)
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def _refund_sn(out_trade_no: str) -> str:
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ts = str(int(time.time()))
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rand = ''.join(random.choices('0123456789', k=4))
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# 付呗 merchant_refund_sn 最长 32
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base = f'{out_trade_no}R{ts}{rand}'
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return base[:32]
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def try_fubei_refund(
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*,
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out_trade_no: str,
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amount_yuan,
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club_id: Optional[str] = None,
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) -> Optional[Dict[str, Any]]:
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"""
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若该单曾走付呗，则发起付呗退款并返回 {'code': 0/非0, 'msg': ..., 'refund_id': ...}；
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非付呗单返回 None，由调用方继续走原微信退款。
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"""
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ledger = get_pay_ledger(out_trade_no)
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if not ledger or ledger.channel != PAY_CHANNEL_FUBEI_WX_MINI:
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return None
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cid = (club_id or ledger.club_id or '').strip()
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cfg = get_fubei_config(cid)
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if not cfg or not cfg.app_id or not cfg.api_key:
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logger.error('[FUBEI_REFUND] 配置缺失 club=%s out_trade_no=%s', cid, out_trade_no)
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return {'code': 500, 'msg': '付呗退款配置缺失，请检查俱乐部付呗通道'}
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merchant_refund_sn = _refund_sn(out_trade_no)
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try:
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data = fubei_client.refund_order(
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gateway_url=cfg.gateway_url,
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app_id=cfg.app_id,
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app_secret=cfg.api_key,
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merchant_order_sn=out_trade_no,
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merchant_refund_sn=merchant_refund_sn,
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refund_money=amount_yuan,
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order_sn=ledger.provider_order_sn or '',
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)
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refund_id = data.get('refund_sn') or merchant_refund_sn
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logger.info('[FUBEI_REFUND] ok out_trade_no=%s refund=%s', out_trade_no, refund_id)
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return {'code': 0, 'msg': 'success', 'refund_id': refund_id, 'raw': data}
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except Exception as exc:
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logger.error('[FUBEI_REFUND] fail out_trade_no=%s: %s', out_trade_no, exc, exc_info=True)
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return {'code': 400, 'msg': str(exc)}
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