from datetime import date
from typing import List, Optional, TYPE_CHECKING

from sqlalchemy import Date
from sqlmodel import SQLModel, Relationship, Field, Column,  func

from backend.app.db.base_class import Base
from backend.app.models.matchdayplayer import MatchdayPlayerLink

if TYPE_CHECKING:
    from backend.app.models.player import Player


class MatchdayBase(SQLModel):
    day: date


class Matchday(MatchdayBase, Base, table=True):
    day: date = Field(
        default=None,
        sa_column=Column(Date, server_default=func.now()))
    players: List["Player"] = Relationship(back_populates="matchdays",
                                           link_model=MatchdayPlayerLink)


class MatchdayCreate(MatchdayBase):
    day: date


class MatchdayUpdate(MatchdayBase):
    day: date


class MatchdayWithPlayers(MatchdayBase):
    day: date
    players: Optional[List["Player"]]