"""点赞/收藏模型"""
from sqlalchemy import Column, Integer, DateTime, ForeignKey, UniqueConstraint
from sqlalchemy.sql import func
from database import Base


class Like(Base):
    __tablename__ = "likes"

    id = Column(Integer, primary_key=True, index=True)
    post_id = Column(Integer, ForeignKey("posts.id"), nullable=False, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    __table_args__ = (
        UniqueConstraint("post_id", "user_id", name="uq_like_post_user"),
    )


class Collect(Base):
    __tablename__ = "collects"

    id = Column(Integer, primary_key=True, index=True)
    post_id = Column(Integer, ForeignKey("posts.id"), nullable=False, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    __table_args__ = (
        UniqueConstraint("post_id", "user_id", name="uq_collect_post_user"),
    )


class ProjectCollect(Base):
    """开源项目收藏"""
    __tablename__ = "project_collects"

    id = Column(Integer, primary_key=True, index=True)
    project_id = Column(Integer, ForeignKey("projects.id"), nullable=False, index=True)
    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    __table_args__ = (
        UniqueConstraint("project_id", "user_id", name="uq_project_collect_user"),
    )