import uuid
from datetime import datetime

from sqlalchemy import Boolean, DateTime, ForeignKey, Numeric, String, Text, func
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.core.database import Base


class Project(Base):
    __tablename__ = "projects"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    company_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), ForeignKey("companies.id", ondelete="CASCADE"), nullable=False, index=True
    )
    name: Mapped[str] = mapped_column(String(100), nullable=False)
    description: Mapped[str | None] = mapped_column(Text)
    color: Mapped[str] = mapped_column(String(7), default="#3B82F6")   # Tailwind blue-500
    budget_hours: Mapped[float | None] = mapped_column(Numeric(8, 2))
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())

    def __repr__(self) -> str:
        return f"<Project {self.name} ({self.company_id})>"