XingHuo/app/repository/core_ro.py

"""Core 模拟库只读访问（jinrong_core · 无 HTTP API）。"""

from __future__ import annotations

from datetime import date, datetime, time, timedelta
from decimal import Decimal
from typing import Any

from sqlalchemy import create_engine, text
from sqlalchemy.engine import Engine

from app.config.settings import settings


class CoreReadOnlyRepository:
    """仅 SELECT jinrong_core；禁止写操作。"""

    def __init__(self, engine: Engine | None = None) -> None:
        self._engine = engine or self._default_engine()

    @staticmethod
    def _default_engine() -> Engine:
        pwd = settings.mysql_password
        auth = f"{settings.mysql_user}:{pwd}" if pwd else settings.mysql_user
        url = (
            f"mysql+pymysql://{auth}@{settings.mysql_host}:{settings.mysql_port}"
            f"/{settings.mysql_core_database}?charset=utf8mb4"
        )
        return create_engine(url, pool_pre_ping=True)

    def get_customer_l0(self, customer_id: str) -> dict[str, Any] | None:
        sql = text(
            """
            SELECT c.customer_id, c.display_name, c.age, c.occupation, c.open_date,
                   r.risk_code, r.evaluated_at AS risk_evaluated_at
            FROM core_customer c
            LEFT JOIN core_customer_risk r ON r.customer_id = c.customer_id
            WHERE c.customer_id = :cid AND c.is_active = 1
            """
        )
        with self._engine.connect() as conn:
            row = conn.execute(sql, {"cid": customer_id}).mappings().first()
            return dict(row) if row else None

    def list_holdings(self, customer_id: str) -> list[dict[str, Any]]:
        sql = text(
            """
            SELECT h.*, p.product_name, p.min_risk_code, p.product_type
            FROM core_holding h
            JOIN core_product p ON p.product_id = h.product_id
            WHERE h.customer_id = :cid
            ORDER BY h.market_value DESC
            """
        )
        with self._engine.connect() as conn:
            return [dict(r) for r in conn.execute(sql, {"cid": customer_id}).mappings()]

    def list_trades(
        self, customer_id: str, since: date | None = None, limit: int = 50
    ) -> list[dict[str, Any]]:
        sql = text(
            """
            SELECT t.*, p.product_name
            FROM core_trade t
            JOIN core_product p ON p.product_id = t.product_id
            WHERE t.customer_id = :cid
              AND (:since IS NULL OR t.traded_at >= :since)
            ORDER BY t.traded_at DESC
            LIMIT :lim
            """
        )
        with self._engine.connect() as conn:
            return [
                dict(r)
                for r in conn.execute(
                    sql, {"cid": customer_id, "since": since, "lim": limit}
                ).mappings()
            ]

    def sum_trades_on_date(self, customer_id: str, day: date) -> Decimal:
        """当日申赎合计金额（RISK-002 累计口径：仅 confirmed 的 subscribe/redeem）。

        当日 = 服务器本地时区自然日，以 traded_at 落在 [day 00:00, day+1 00:00) 为准。
        """
        day_start = datetime.combine(day, time.min)
        day_end = day_start + timedelta(days=1)
        sql = text(
            """
            SELECT COALESCE(SUM(amount), 0)
            FROM core_trade
            WHERE customer_id = :cid
              AND trade_type IN ('subscribe', 'redeem')
              AND trade_status = 'confirmed'
              AND traded_at >= :day_start
              AND traded_at < :day_end
            """
        )
        with self._engine.connect() as conn:
            total = conn.execute(
                sql, {"cid": customer_id, "day_start": day_start, "day_end": day_end}
            ).scalar_one()
            return Decimal(total)

    def get_product(self, product_id: str) -> dict[str, Any] | None:
        sql = text("SELECT * FROM core_product WHERE product_id = :pid")
        with self._engine.connect() as conn:
            row = conn.execute(sql, {"pid": product_id}).mappings().first()
            return dict(row) if row else None

    def get_latest_nav(self, product_id: str) -> dict[str, Any] | None:
        sql = text(
            """
            SELECT * FROM core_product_nav
            WHERE product_id = :pid
            ORDER BY nav_date DESC LIMIT 1
            """
        )
        with self._engine.connect() as conn:
            row = conn.execute(sql, {"pid": product_id}).mappings().first()
            return dict(row) if row else None

    def list_customers_by_advisor(self, advisor_id: str) -> list[str]:
        sql = text(
            """
            SELECT customer_id FROM core_customer_advisor
            WHERE advisor_id = :aid AND rel_status = 'active'
            """
        )
        with self._engine.connect() as conn:
            return [r[0] for r in conn.execute(sql, {"aid": advisor_id})]

    def get_staff(self, staff_id: str) -> dict[str, Any] | None:
        """RBAC 联调：查员工角色种子。"""
        sql = text(
            "SELECT staff_id, display_name, staff_type, roles FROM core_staff WHERE staff_id = :sid AND is_active = 1"
        )
        with self._engine.connect() as conn:
            row = conn.execute(sql, {"sid": staff_id}).mappings().first()
            return dict(row) if row else None

    def is_advisor_assigned(self, advisor_id: str, customer_id: str) -> bool:
        sql = text(
            """
            SELECT 1 FROM core_customer_advisor
            WHERE advisor_id = :aid AND customer_id = :cid AND rel_status = 'active'
            LIMIT 1
            """
        )
        with self._engine.connect() as conn:
            return conn.execute(sql, {"aid": advisor_id, "cid": customer_id}).first() is not None