"""User ORM model and Pydantic schemas."""
from __future__ import annotations

from datetime import datetime
from typing import TYPE_CHECKING

from pydantic import BaseModel, ConfigDict, EmailStr
from sqlalchemy import Boolean, DateTime, Integer, String, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.models.base import Base

if TYPE_CHECKING:  # pragma: no cover - circular imports only for typing
    pass


class User(Base):
    """SQLAlchemy model for application users."""

    __tablename__ = "users"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, index=True)
    email: Mapped[str] = mapped_column(String(320), unique=True, index=True, nullable=False)
    hashed_password: Mapped[str] = mapped_column(String(255), nullable=False)
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False
    )

    memberships = relationship("OrganizationMember", back_populates="user", cascade="all, delete-orphan")
    owned_contacts = relationship("Contact", back_populates="owner")
    owned_deals = relationship("Deal", back_populates="owner")
    activities = relationship("Activity", back_populates="author")


class UserBase(BaseModel):
    """Shared user fields for Pydantic schemas."""

    email: EmailStr
    name: str
    is_active: bool = True


class UserCreate(UserBase):
    password: str


class UserRead(UserBase):
    id: int
    created_at: datetime
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)