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

from app.core.database import Base
from app.models.base import TimestampMixin


role_permission = Table(
    "core_role_permission",
    Base.metadata,
    Column("role_id", String(32), ForeignKey("core_role.id"), primary_key=True),
    Column("permission_id", String(32), ForeignKey("core_permission.id"), primary_key=True),
)

user_role = Table(
    "core_user_role",
    Base.metadata,
    Column("user_id", String(32), ForeignKey("core_user.id"), primary_key=True),
    Column("role_id", String(32), ForeignKey("core_role.id"), primary_key=True),
)


class User(TimestampMixin, Base):
    __tablename__ = "core_user"

    email: Mapped[str] = mapped_column(String(120), unique=True, index=True)
    username: Mapped[str] = mapped_column(String(80), unique=True, index=True)
    password_hash: Mapped[str] = mapped_column(String(200))
    nickname: Mapped[str] = mapped_column(String(80), default="")
    status: Mapped[str] = mapped_column(String(20), default="enabled")
    is_superuser: Mapped[bool] = mapped_column(Boolean, default=False)
    roles: Mapped[list["Role"]] = relationship("Role", secondary=user_role, back_populates="users")


class Role(TimestampMixin, Base):
    __tablename__ = "core_role"

    name: Mapped[str] = mapped_column(String(80), unique=True)
    code: Mapped[str] = mapped_column(String(80), unique=True, index=True)
    description: Mapped[str] = mapped_column(Text, default="")
    status: Mapped[str] = mapped_column(String(20), default="enabled")
    users: Mapped[list[User]] = relationship("User", secondary=user_role, back_populates="roles")
    permissions: Mapped[list["Permission"]] = relationship("Permission", secondary=role_permission)


class Permission(TimestampMixin, Base):
    __tablename__ = "core_permission"

    name: Mapped[str] = mapped_column(String(100))
    code: Mapped[str] = mapped_column(String(120), unique=True, index=True)
    resource: Mapped[str] = mapped_column(String(80), default="")
    action: Mapped[str] = mapped_column(String(40), default="")


class Menu(TimestampMixin, Base):
    __tablename__ = "core_menu"

    parent_id: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
    title: Mapped[str] = mapped_column(String(100))
    path: Mapped[str] = mapped_column(String(200), default="")
    icon: Mapped[str] = mapped_column(String(100), default="")
    permission_code: Mapped[str] = mapped_column(String(120), default="")
    visible: Mapped[bool] = mapped_column(Boolean, default=True)


class Announcement(TimestampMixin, Base):
    __tablename__ = "core_announcement"

    title: Mapped[str] = mapped_column(String(160))
    content: Mapped[str] = mapped_column(Text, default="")
    status: Mapped[str] = mapped_column(String(20), default="draft")