from datetime import datetime, timezone
from sqlalchemy import Boolean, Column, Integer, String, Float, Text, DateTime, ForeignKey, UniqueConstraint
from sqlalchemy.orm import relationship
from database import Base


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, index=True)
    username = Column(String(50), unique=True, index=True)
    email = Column(String(100), unique=True, index=True, nullable=True)
    hashed_password = Column(String(60))
    full_name = Column(String(100), nullable=True)
    phone = Column(String(20), nullable=True)
    is_agent = Column(Boolean, default=False)
    created_at = Column(DateTime, default=lambda: datetime.now(timezone.utc))

    properties = relationship("Property", back_populates="owner")
    favorites = relationship("Favorite", back_populates="user")


class Property(Base):
    __tablename__ = "properties"

    id = Column(Integer, primary_key=True, index=True)
    title = Column(String(200), nullable=False)
    description = Column(Text, nullable=False)
    price = Column(Integer, nullable=False)
    property_type = Column(String(50), nullable=False)
    bedrooms = Column(Integer, default=0)
    bathrooms = Column(Float, default=0)
    area_sqft = Column(Integer, nullable=False)
    address = Column(String(300), nullable=False)
    city = Column(String(100), nullable=False)
    state = Column(String(50), nullable=False)
    zip_code = Column(String(10), nullable=False)
    year_built = Column(Integer, nullable=True)
    status = Column(String(20), default="active")
    is_featured = Column(Boolean, default=False)
    contact_email = Column(String(100), nullable=True)
    contact_phone = Column(String(30), nullable=True)
    created_at = Column(DateTime, default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime, default=lambda: datetime.now(timezone.utc),
                        onupdate=lambda: datetime.now(timezone.utc))

    owner_id = Column(Integer, ForeignKey("users.id"))
    owner = relationship("User", back_populates="properties")
    images = relationship("PropertyImage", back_populates="property", cascade="all, delete-orphan")
    favorites = relationship("Favorite", back_populates="property")


class PropertyImage(Base):
    __tablename__ = "property_images"

    id = Column(Integer, primary_key=True, index=True)
    image_path = Column(String(500), nullable=False)
    is_primary = Column(Boolean, default=False)
    sort_order = Column(Integer, default=0)

    property_id = Column(Integer, ForeignKey("properties.id"))
    property = relationship("Property", back_populates="images")


class Favorite(Base):
    __tablename__ = "favorites"

    id = Column(Integer, primary_key=True, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    property_id = Column(Integer, ForeignKey("properties.id"), nullable=False)
    created_at = Column(DateTime, default=lambda: datetime.now(timezone.utc))

    user = relationship("User", back_populates="favorites")
    property = relationship("Property", back_populates="favorites")

    __table_args__ = (UniqueConstraint("user_id", "property_id", name="uq_user_property"),)