"""协同机会模型。

Portfolio 内部协同匹配与效果追踪。
"""

import uuid
from datetime import datetime, timezone

from sqlalchemy import DateTime, ForeignKey, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.core.database import Base
from app.core.types import JSONBType


class SynergyOpportunity(Base):
    """协同机会。"""

    __tablename__ = "synergy_opportunities"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    tenant_id: Mapped[str] = mapped_column(String(36), ForeignKey("tenants.id"), nullable=False, index=True)
    type: Mapped[str] = mapped_column(String(50), nullable=False, comment="customer/talent/funding/supply_chain/tech")
    company_a_id: Mapped[str] = mapped_column(String(36), ForeignKey("companies.id"), nullable=False, index=True)
    company_b_id: Mapped[str | None] = mapped_column(String(36), ForeignKey("companies.id"), nullable=True)
    title: Mapped[str] = mapped_column(String(200), nullable=False)
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    match_reason: Mapped[str | None] = mapped_column(Text, nullable=True, comment="AI 匹配理由")
    status: Mapped[str] = mapped_column(String(20), nullable=False, default="discovered", comment="discovered/confirmed/authorized/executing/completed/declined")
    authorized: Mapped[bool] = mapped_column(default=False, comment="双方是否授权")
    effect_result: Mapped[dict | None] = mapped_column(JSONBType, nullable=True, comment="效果评估")
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
        onupdate=lambda: datetime.now(timezone.utc),
    )