from __future__ import annotations

from app.lab.dto.ration import ExecutionLineSnapshot, ExecutionSnapshot
from app.models import Ingredient, Recipe


def load_execution(recipe_id: str) -> ExecutionSnapshot:
    recipe = Recipe.query.filter_by(id=recipe_id, is_deleted=False).first()
    if recipe is None:
        raise LookupError("Рецепт не найден")
    heads = int(recipe.heads_per_trip or 1)
    ingredients = (
        Ingredient.query.filter_by(recipe_id=recipe_id, is_deleted=False)
        .order_by(Ingredient.order)
        .all()
    )
    lines = []
    for ing in ingredients:
        wph = float(ing.weight_per_head or 0)
        lines.append(
            ExecutionLineSnapshot(
                ingredient_id=ing.id,
                component_id=ing.component_id,
                name=ing.name,
                weight_per_head=wph,
                daily_kg_total=wph * heads,
            )
        )
    return ExecutionSnapshot(recipe_id=recipe_id, heads_per_trip=heads, lines=tuple(lines))