# app/models/serie.py
from typing import TYPE_CHECKING

from sqlmodel import Field, Relationship, Session, select

from . import mixin
from .base import BaseSQLModel, RowId
from .user import PermissionRight, User

if TYPE_CHECKING:
    from .team import Team

# region # Serie ##############################################################

# Shared properties
class SerieUserLinkBase(BaseSQLModel):
    rights: PermissionRight = Field(default=PermissionRight.READ, nullable=False)

# Properties to receive via API on creation
class SerieUserLinkCreate(SerieUserLinkBase):
    user_id: RowId = Field(nullable=False)

# Properties to receive via API on update, all are optional
class SerieUserLinkUpdate(SerieUserLinkBase):
    pass

# Database model (link tussen serie en user)
class SerieUserLink(SerieUserLinkBase, table=True):
    serie_id: RowId = Field(
        foreign_key="serie.id",
        primary_key=True,
        nullable=False,
        ondelete="CASCADE",
    )
    user_id: RowId = Field(
        foreign_key="user.id",
        primary_key=True,
        nullable=False,
        ondelete="CASCADE",
    )

    serie: "Serie" = Relationship(back_populates="user_links")
    user: "User" = Relationship(back_populates="serie_links")

# Properties to return via API
class SerieUserLinkPublic(SerieUserLinkBase):
    user_id: RowId
    serie_id: RowId

class SerieUserLinksPublic(BaseSQLModel):
    data: list[SerieUserLinkPublic]
    count: int

# Shared properties
class SerieBase(
    mixin.Name,
    mixin.Contact,
    mixin.IsActive,
    BaseSQLModel,
):
    pass

# Properties to receive via API on creation
class SerieCreate(SerieBase):
    pass

# Properties to receive via API on update, all are optional
class SerieUpdate(SerieBase):
    pass

# Database model
class Serie(mixin.RowId, SerieBase, table=True):

    user_links: list["SerieUserLink"] = Relationship(back_populates="serie", cascade_delete=True)
    #teams: list["Team"] = Relationship(back_populates="serie", cascade_delete=True)

    @classmethod
    def create(cls, *, session: Session, create_obj: SerieCreate) -> "Serie":
        data_obj = create_obj.model_dump(exclude_unset=True)
        db_obj = cls.model_validate(data_obj)
        session.add(db_obj)
        session.commit()
        session.refresh(db_obj)
        return db_obj

    @classmethod
    def update(cls, *, session: Session, db_obj: "Serie", in_obj: SerieUpdate) -> "Serie":
        data_obj = in_obj.model_dump(exclude_unset=True)
        db_obj.sqlmodel_update(data_obj)
        session.add(db_obj)
        session.commit()
        session.refresh(db_obj)
        return db_obj

    def get_user_link(self, user: User) -> "SerieUserLink | None":
        return next((link for link in self.user_links if link.user == user), None)

    def add_user(
        self,
        user: User,
        rights: PermissionRight = PermissionRight.READ,
        *,
        session: Session,
    ) -> "SerieUserLink | None":
        existing = self.get_user_link(user=user)
        if existing is None:
            new_link = SerieUserLink(serie=self, user=user, rights=rights)
            self.user_links.append(new_link)
            session.add(new_link)
            session.commit()
            return new_link
        return None #TODO aanpassen??

    def update_user(
        self,
        user: User,
        rights: PermissionRight = PermissionRight.READ,
        *,
        session: Session,
    ) -> "SerieUserLink | None":
        link = self.get_user_link(user=user)
        if link:
            link.rights = rights
            session.add(link)
            session.commit()
            return link
        return None

    def remove_user(self, user: User, *, session: Session) -> None:
        link = self.get_user_link(user=user)
        if link:
            session.delete(link)
            session.commit()

    def user_has_rights(
        self,
        user: User,
        rights: PermissionRight | None = None,
    ) -> bool:
        return any(
            (
                link.user == user
                and link.rights
                and (not rights or (link.rights & rights) == rights)
            )
            for link in self.user_links
        )

    def user_has_right(
        self,
        user: User,
        rights: PermissionRight | None = None,
    ) -> bool:
        return any(
            (
                link.user == user
                and link.rights
                and (not rights or (link.rights & rights))
            )
            for link in self.user_links
        )


# API output models
class SeriePublic(mixin.RowIdPublic, SerieBase):
    pass


class SeriesPublic(BaseSQLModel):
    data: list[SeriePublic]
    count: int

# endregion