from backend.model.tribe import Tribe
from backend.repository.abstract_repository import AbstractRepository


class TribeRepositoryError(Exception):
    pass


class TribeSQLiteRepository(AbstractRepository):
    def __init__(self, conn) -> None:
        self.conn = conn

    def add(self, tribe: Tribe) -> None:
        tribes = self.list()
        if tribe.name in map(lambda x: x.name, tribes):
            raise TribeRepositoryError(
                f"The tribe {tribe.name} already exists. Can't add it"
            )

        self.conn.execute(
            """
        INSERT INTO tribes(name, level) VALUES (?, ?)
        """,
            (
                tribe.name,
                tribe.level,
            ),
        )

    def update(self, name: str, tribe: Tribe) -> None:
        tribes = self.list()

        if name not in map(lambda x: x.name, tribes):
            raise TribeRepositoryError(
                f"The tribe {name} doesn't exists. Can't update it"
            )

        self.conn.execute(
            """
            UPDATE tribes SET name=:newname, level=:newlevel WHERE name=:name
            """,
            {
                "newname": tribe.name,
                "newlevel": tribe.level,
                "name": name,
            },
        )

    def get(self, name: str) -> Tribe:
        cursor = self.conn.cursor()
        cursor.execute(
            """
        SELECT * FROM tribes WHERE name=?
        """,
            (name,),
        )

        row = cursor.fetchone()
        if row:
            return Tribe(*row)

        raise TribeRepositoryError(f"The tribe {name} does not exists")

    def list(self) -> list[Tribe]:
        cursor = self.conn.cursor()
        cursor.execute(
            """
        SELECT * FROM tribes
        """
        )

        rows = cursor.fetchall()
        return [Tribe(*r) for r in rows]

    def delete(self, name: str) -> None:
        tribes = self.list()
        if name not in map(lambda x: x.name, tribes):
            raise TribeRepositoryError(
                f"The tribe {name} doesn't exists. Can't delete it."
            )

        self.conn.execute(
            """
            DELETE FROM tribes WHERE name=:name
            """,
            {
                "name": name,
            },
        )