import uuid
from datetime import datetime

from sqlalchemy import Boolean, Column, DateTime, ForeignKey, String, Table, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


def generate_uuid() -> str:
    return str(uuid.uuid4())


class Tag(Base):
    __tablename__ = "tags"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=generate_uuid)
    name: Mapped[str] = mapped_column(String(100), unique=True, nullable=False)
    color: Mapped[str] = mapped_column(String(7), nullable=False, default="#6366f1")
    is_deleted: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
    deleted_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    deleted_by: Mapped[str | None] = mapped_column(String(36), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)


class DocumentTag(Base):
    __tablename__ = "document_tags"

    document_id: Mapped[str] = mapped_column(String(36), ForeignKey("documents.id", ondelete="CASCADE"), primary_key=True)
    tag_id: Mapped[str] = mapped_column(String(36), ForeignKey("tags.id", ondelete="CASCADE"), primary_key=True)