from sqlalchemy import Column, String, Float, DateTime, ForeignKey, Text
from sqlalchemy.dialects.postgresql import UUID, JSONB
from datetime import datetime
from app.database import Base
import uuid


class CreditConsumption(Base):
    __tablename__ = "credit_consumptions"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False, index=True)
    result_type = Column(String(50), nullable=False)
    reference_id = Column(UUID(as_uuid=True), nullable=True)
    credits_change = Column(Float, nullable=False)
    balance_after = Column(Float, nullable=False)
    source = Column(String(30), nullable=False)
    description = Column(String(500))
    metadata_ = Column("metadata", JSONB)
    created_at = Column(DateTime, default=datetime.utcnow)