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from sqlalchemy import Column, Integer, String, DateTime, Text, JSON, Float, Boolean, ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship
from datetime import datetime

Base = declarative_base()

class ProviderConfig(Base):
    __tablename__ = "provider_configs"
    id = Column(Integer, primary_key=True)
    provider_id = Column(String(64), unique=True, nullable=False)
    name = Column(String(64), nullable=False)
    api_key = Column(Text, nullable=True)
    base_url = Column(String(256), nullable=True)
    models = Column(JSON, default=[])
    default_model = Column(String(64), nullable=True)
    enabled = Column(Boolean, default=True)
    priority = Column(Integer, default=0)
    config = Column(JSON, default={})
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

class ModelCall(Base):
    __tablename__ = "model_calls"
    id = Column(Integer, primary_key=True)
    call_id = Column(String(64), unique=True, nullable=False)
    provider_id = Column(String(64), nullable=False)
    model = Column(String(64), nullable=False)
    prompt = Column(Text, nullable=False)
    response = Column(Text, nullable=True)
    tokens_prompt = Column(Integer, default=0)
    tokens_completion = Column(Integer, default=0)
    cost = Column(Float, default=0.0)
    duration_ms = Column(Float, default=0.0)
    success = Column(Boolean, default=True)
    error = Column(Text, nullable=True)
    meta = Column(JSON, default={})          # column name is 'meta' (not reserved)
    created_at = Column(DateTime, default=datetime.utcnow)