from datetime import datetime
from sqlalchemy.orm import Mapped, mapped_column, relationship
from sqlalchemy import Integer, String, Boolean, DateTime, Text, ForeignKey
from app.core.database import Base

class Board(Base):
    __tablename__ = "board"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    code: Mapped[str] = mapped_column(String(50), unique=True, index=True, nullable=False)  # 예: "notices", "free"
    name: Mapped[str] = mapped_column(String(100), nullable=False)                          # 예: "공지사항"
    description: Mapped[str | None] = mapped_column(String(255))
    is_public: Mapped[bool] = mapped_column(Boolean, default=True)     # 공개 여부
    allow_comment: Mapped[bool] = mapped_column(Boolean, default=True) # 댓글 허용
    use_attachment: Mapped[bool] = mapped_column(Boolean, default=True)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)

class BoardPost(Base):
    __tablename__ = "board_post"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    board_id: Mapped[int] = mapped_column(ForeignKey("board.id", ondelete="CASCADE"), index=True, nullable=False)
    title: Mapped[str] = mapped_column(String(200), nullable=False)
    content: Mapped[str] = mapped_column(Text, nullable=False)
    author_id: Mapped[int | None] = mapped_column(Integer, nullable=True)  # 일반 유저 id(선택)
    is_notice: Mapped[bool] = mapped_column(Boolean, default=False)
    is_pinned: Mapped[bool] = mapped_column(Boolean, default=False)
    view_count: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)

class BoardComment(Base):
    __tablename__ = "board_comment"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    post_id: Mapped[int] = mapped_column(ForeignKey("board_post.id", ondelete="CASCADE"), index=True, nullable=False)
    author_id: Mapped[int | None] = mapped_column(Integer, nullable=True)
    content: Mapped[str] = mapped_column(Text, nullable=False)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, nullable=False)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)