from sqlalchemy import (
    Column,
    Integer,
    String,
    Float,
    Date,
    Time,
    DateTime,
    ForeignKey,
    UniqueConstraint,
    func,
)
from sqlalchemy.dialects.postgresql import ARRAY
from sqlalchemy.orm import relationship

from app.database.database import Base


class Person(Base):
    __tablename__ = "person"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, nullable=False, index=True)
    embedding = Column(ARRAY(Float), nullable=False)  # 512-d embedding
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    attendances = relationship("Attendance", back_populates="person")


class Attendance(Base):
    __tablename__ = "attendance"
    # شخص واحد يتسجل مرة واحدة بس فى اليوم
    __table_args__ = (UniqueConstraint("person_id", "date", name="uq_person_date"),)

    id = Column(Integer, primary_key=True, index=True)
    person_id = Column(Integer, ForeignKey("person.id"), nullable=False)
    date = Column(Date, nullable=False)
    time = Column(Time, nullable=False)
    status = Column(String, default="Present")

    person = relationship("Person", back_populates="attendances")