import type { CreateRecipeFormDirtyEntries, CreateRecipeFormEntries } from "../pages/Create";
import { isRecipeMeal, type RecipeIngredient, type RecipeInstruction } from "../types/recipe";

export interface CreateRecipeFormValues {
  title: string;
  description: string;
  prepTime: string;
  cookTime: string;
  servingSize: string;
  category: string;
  difficulty: string;
  ingredients: RecipeIngredient[];
  instructions: RecipeInstruction[];
}

export function validateCreateRecipeForm(values: CreateRecipeFormValues, dirty: CreateRecipeFormDirtyEntries): CreateRecipeFormEntries {
  return {
    title: dirty.title
      ? values.title.length >= 1 && values.title.length <= 128
      : true,
    description: dirty.description
      ? values.description.length >= 1 && values.description.length <= 1000
      : true,
    prepTime: dirty.prepTime
      ? values.prepTime !== "" &&
      Number(values.prepTime) >= 0 &&
      Number(values.prepTime) <= 300
      : true,
    cookTime: dirty.cookTime
      ? values.cookTime !== "" &&
      Number(values.cookTime) >= 0 &&
      Number(values.cookTime) <= 300
      : true,
    servingSize: dirty.servingSize
      ? values.servingSize !== "" &&
      Number(values.servingSize) >= 1 &&
      Number(values.servingSize) <= 16
      : true,
    category: dirty.category
      ? values.category !== "" && isRecipeMeal(values.category)
      : true,
    difficulty: dirty.difficulty
      ? values.difficulty !== "" &&
      Number(values.difficulty) >= 1 &&
      Number(values.difficulty) <= 5
      : true,
    ingredients: values.ingredients.map(ingredient => {
      if (!dirty.ingredients[ingredient.Id]) {
        return { id: ingredient.Id, valid: true };
      }
      let valid = true;
      if (ingredient.Name.trim() === "") valid = false;
      if (ingredient.Unit === "") valid = false;
      if (ingredient.Amount <= 0) valid = false;
      return { id: ingredient.Id, valid };
    }),
    instructions: values.instructions.map(instruction => {
      if (!dirty.instructions[instruction.Id]) {
        return { id: instruction.Id, valid: true }
      }
      return {
        id: instruction.Id,
        valid: instruction.Content.trim() !== ""
      }
    }),
  }
}