/*
 * Copyright (C) 2018 StApps
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <https://www.gnu.org/licenses/>.
 */
import {SCThingInPlace} from '../base/ThingInPlace';
import {
  SCAcademicPriceGroup,
  SCThingThatCanBeOffered,
  SCThingThatCanBeOfferedTranslatableProperties,
} from '../base/ThingThatCanBeOffered';
import {
  SCThingWithCategoriesSpecificValues,
  SCThingWithCategoriesTranslatableProperties,
  SCThingWithCategoriesWithoutReferences,
} from '../base/ThingWithCategories';
import {SCThingMeta, SCThingType} from '../Thing';
import {SCTranslations} from '../types/i18n';

/**
 * A dish without references
 */
export interface SCDishWithoutReferences
  extends SCThingWithCategoriesWithoutReferences<SCDishCategories,
    SCThingWithCategoriesSpecificValues>,
    SCThingThatCanBeOffered<SCAcademicPriceGroup> {
  /**
   * Additives of the dish
   */
  additives?: string[];

  /**
   * Category of the dish
   */
  categories: SCDishCategories[];

  /**
   * Characteristics of the dish
   */
  characteristics?: string[];

  /**
   * Nutrition information (calories and nutrients with amounts)
   */
  nutrition?: SCNutritionInformation;

  /**
   * Translated fields of a dish
   */
  translations?: SCTranslations<SCDishTranslatableProperties>;

  /**
   * Type of a dish
   */
  type: SCThingType.Dish;
}

/**
 * A dish
 *
 * @validatable
 */
export interface SCDish extends SCDishWithoutReferences, SCThingInPlace {
  /**
   * Dishes ("Beilagen") that are served with the dish (if only certain supplement dishes can be taken with a dish)
   */
  dishAddOns?: SCDishWithoutReferences[];

  /**
   * Translated fields of a dish
   */
  translations?: SCTranslations<SCDishTranslatableProperties>;

  /**
   * Type of a dish
   */
  type: SCThingType.Dish;
}

export interface SCDishTranslatableProperties
  extends SCThingWithCategoriesTranslatableProperties, SCThingThatCanBeOfferedTranslatableProperties {
}

/**
 * Dish meta data
 */
export class SCDishMeta extends SCThingMeta {
  static fieldTranslations = {
    ...SCThingMeta.fieldTranslations,
    de: {
      categories: 'Kategorien',
    },
  };
}

/**
 * A list of categories for dishes
 */
export type SCDishCategories =
  'appetizer'
  | 'salad'
  | 'main dish'
  | 'dessert'
  | 'soup'
  | 'side dish';

/**
 * Type definition for SCNutritionInformation
 *
 * @see https://schema.org/NutritionInformation
 */
export interface SCNutritionInformation {
  /**
   * Number of calories contained (in kcal)
   */
  calories?: number;

  /**
   * Content of carbohydrates (in grams)
   */
  carbohydrateContent?: number;

  /**
   * Content of fat (in grams)
   */
  fatContent?: number;

  /**
   * Content of proteins (in grams)
   */
  proteinContent?: number;

  /**
   * Content of salt (in grams)
   */
  saltContent?: number;

  /**
   * Content of saturated fat (in grams)
   */
  saturatedFatContent?: number;

  /**
   * Content of sugar (in grams)
   */
  sugarContent?: number;
}