"""
银行流水模型
"""
from datetime import datetime
from typing import Optional, TYPE_CHECKING

from sqlalchemy import (
    Boolean,
    Column,
    Date,
    DateTime,
    String,
    Text,
    Float,
)
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import BaseModel

if TYPE_CHECKING:
    from .streamer import StreamerInfo, McnAgency


class BankTransaction(BaseModel):
    """
    银行流水表
    """
    __tablename__ = "bank_transaction"

    transaction_id: Mapped[str] = mapped_column(
        String(50), unique=True, nullable=False, comment="流水ID"
    )
    account_no: Mapped[str] = mapped_column(
        String(50), nullable=False, comment="账号"
    )
    account_name: Mapped[str] = mapped_column(
        String(200), nullable=False, comment="账户名"
    )
    bank_name: Mapped[str] = mapped_column(
        String(200), nullable=False, comment="开户行"
    )
    transaction_date: Mapped[Date] = mapped_column(
        Date, nullable=False, comment="交易日期"
    )
    transaction_time: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), nullable=False, comment="交易时间"
    )
    transaction_type: Mapped[str] = mapped_column(
        String(20),
        nullable=False,
        comment="交易类型：debit-借方（支出），credit-贷方（收入）",
    )
    transaction_amount: Mapped[float] = mapped_column(
        nullable=False, comment="交易金额"
    )
    balance: Mapped[float] = mapped_column(
        nullable=False, comment="余额"
    )
    counterparty_account_no: Mapped[Optional[str]] = mapped_column(
        String(50), nullable=True, comment="对手方账号"
    )
    counterparty_account_name: Mapped[Optional[str]] = mapped_column(
        String(200), nullable=True, comment="对手方账户名"
    )
    counterparty_bank_name: Mapped[Optional[str]] = mapped_column(
        String(200), nullable=True, comment="对手方开户行"
    )
    voucher_no: Mapped[Optional[str]] = mapped_column(
        String(100), nullable=True, comment="凭证号"
    )
    transaction_purpose: Mapped[Optional[str]] = mapped_column(
        String(500), nullable=True, comment="交易用途"
    )
    is_cross_border: Mapped[bool] = mapped_column(
        default=False, comment="是否跨境"
    )
    currency: Mapped[str] = mapped_column(
        String(10), default="CNY", comment="币种"
    )
    amount_cny: Mapped[float] = mapped_column(
        nullable=False, comment="折算人民币金额"
    )
    exchange_rate: Mapped[float] = mapped_column(
        default=1.0000, comment="汇率"
    )
    is_large_amount: Mapped[bool] = mapped_column(
        default=False, comment="是否大额交易（>20万）"
    )
    is_suspicious: Mapped[bool] = mapped_column(
        default=False, comment="是否可疑交易"
    )
    suspicious_reason: Mapped[Optional[str]] = mapped_column(
        Text, nullable=True, comment="可疑原因"
    )
    is_reconciled: Mapped[bool] = mapped_column(
        default=False, comment="是否已对账"
    )
    reconciled_time: Mapped[Optional[datetime]] = mapped_column(
        DateTime(timezone=True), nullable=True, comment="对账时间"
    )