"""Модель AI-рекомендаций."""

import uuid
from datetime import datetime, timezone

from sqlalchemy import Column, DateTime, Float, ForeignKey, func
from sqlalchemy.dialects.postgresql import UUID as PG_UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.core.database import Base


class AIMatch(Base):
    __tablename__ = "ai_matches"

    id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    project_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
    freelancer_id: Mapped[uuid.UUID] = mapped_column(PG_UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
    match_score: Mapped[float] = mapped_column(Float(precision=5, scale=4), nullable=False)
    reasons: Mapped[list] = mapped_column("reasons", postgresql.JSONB, default=list)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())