from __future__ import annotations

import datetime
from typing import ClassVar, List, Optional

from pydantic import Field

from common import ApiModel
from ingredients import Ingredient
from persons.models import Person
from recipes import Recipe


class MealRecipe(ApiModel):
    meal_id: int
    recipe_id: int
    servings: float

    recipe: Optional[Recipe] = None


class Meal(ApiModel):
    KEYS: ClassVar[List[str]] = ["id", "suggested_date", "consumed_date", "purchase_date"]
    id: int = -1
    suggested_date: datetime.datetime
    consumed_date: Optional[datetime.datetime] = None

    chefs: List[Person] = Field(default_factory=list)
    cleanup: List[Person] = Field(default_factory=list)
    consumers: List[Person] = Field(default_factory=list)
    recipes: List[MealRecipe] = Field(default_factory=list)
    extra_ingredients: List[Ingredient] = Field(default_factory=list)

    # Set from shopping list
    purchase_date: Optional[datetime.datetime] = None