"""
文档元数据模型
"""
from sqlalchemy import Column, BigInteger, String, Integer, DateTime
from sqlalchemy.sql import func
from app.core.database import Base


class DocumentMeta(Base):
    """文档元数据表模型"""

    __tablename__ = "document_meta"

    id = Column(BigInteger, primary_key=True, autoincrement=True, comment="元数据ID")
    project_id = Column(BigInteger, nullable=False, index=True, comment="项目ID")
    file_path = Column(String(500), nullable=False, comment="文件相对路径")
    title = Column(String(200), comment="文档标题")
    tags = Column(String(500), comment="标签（JSON数组）")
    author_id = Column(BigInteger, index=True, comment="作者ID")
    word_count = Column(Integer, default=0, comment="字数统计")
    view_count = Column(Integer, default=0, comment="浏览次数")
    last_editor_id = Column(BigInteger, comment="最后编辑者ID")
    last_edited_at = Column(DateTime, comment="最后编辑时间")
    created_at = Column(DateTime, server_default=func.now(), comment="创建时间")
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now(), comment="更新时间")

    def __repr__(self):
        return f"<DocumentMeta(id={self.id}, project_id={self.project_id}, file_path='{self.file_path}')>"