/*
 * This file is part of wger Workout Manager <https://github.com/wger-project>.
 * Copyright (C) 2020, 2021 wger Team
 *
 * wger Workout Manager is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * wger Workout Manager 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import 'dart:math';

import 'package:flutter/material.dart';
import 'package:wger/models/nutrition/ingredient.dart';
import 'package:wger/models/nutrition/log.dart';
import 'package:wger/models/nutrition/meal.dart';
import 'package:wger/models/nutrition/meal_item.dart';
import 'package:wger/models/nutrition/nutritional_plan.dart';

final ingredient1 = Ingredient(
  remoteId: '1',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/1',
  id: 1,
  code: '123456787',
  name: 'Water',
  created: DateTime(2021, 5, 1),
  energy: 500,
  carbohydrates: 10,
  carbohydratesSugar: 2,
  protein: 5,
  fat: 20,
  fatSaturated: 7,
  fiber: 12,
  sodium: 0.5,
);
final ingredient2 = Ingredient(
  remoteId: '2',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/2',
  id: 2,
  code: '123456788',
  name: 'Burger soup',
  created: DateTime(2021, 5, 10),
  energy: 25,
  carbohydrates: 10,
  carbohydratesSugar: 2,
  protein: 1,
  fat: 12,
  fatSaturated: 9,
  fiber: 50,
  sodium: 0,
);
final ingredient3 = Ingredient(
  remoteId: '3',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/3',
  id: 3,
  code: '123456789',
  name: 'Broccoli cake',
  created: DateTime(2021, 5, 2),
  energy: 1200,
  carbohydrates: 110,
  carbohydratesSugar: 2,
  protein: 9,
  fat: 10,
  fatSaturated: 8,
  fiber: 1,
  sodium: 10,
);
final muesli = Ingredient(
  remoteId: '1',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/1',
  id: 1,
  code: '123456787',
  name: 'Müsli',
  created: DateTime(2021, 5, 1),
  energy: 500,
  carbohydrates: 10,
  carbohydratesSugar: 2,
  protein: 5,
  fat: 20,
  fatSaturated: 7,
  fiber: 12,
  sodium: 0.5,
);
final milk = Ingredient(
  remoteId: '1',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/1',
  id: 1,
  code: '123456787',
  name: 'Milk',
  created: DateTime(2021, 5, 1),
  energy: 500,
  carbohydrates: 10,
  carbohydratesSugar: 2,
  protein: 5,
  fat: 20,
  fatSaturated: 7,
  fiber: 12,
  sodium: 0.5,
);
final apple = Ingredient(
  remoteId: '1',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/1',
  id: 1,
  code: '123456787',
  name: 'Apple',
  created: DateTime(2021, 5, 1),
  energy: 500,
  carbohydrates: 10,
  carbohydratesSugar: 2,
  protein: 5,
  fat: 20,
  fatSaturated: 7,
  fiber: 12,
  sodium: 0.5,
);
final cake = Ingredient(
  remoteId: '1',
  sourceName: 'Built-in testdata',
  sourceUrl: 'https://example.com/ingredient/1',
  id: 1,
  code: '111111111',
  name: 'Lemon CAke',
  created: DateTime(2021, 5, 1),
  energy: 400,
  carbohydrates: 53,
  carbohydratesSugar: 37,
  protein: 4,
  fat: 12,
  fatSaturated: 0,
  fiber: 0,
  sodium: 0,
);

NutritionalPlan getNutritionalPlan() {
  final mealItem1 = MealItem(ingredientId: 1, amount: 100);
  mealItem1.ingredient = ingredient1;

  final mealItem2 = MealItem(ingredientId: 2, amount: 75);
  mealItem2.ingredient = ingredient2;

  final mealItem3 = MealItem(ingredientId: 3, amount: 300);
  mealItem3.ingredient = ingredient3;

  final meal1 = Meal(
    id: 1,
    plan: 1,
    time: const TimeOfDay(hour: 17, minute: 0),
    name: 'Initial Name 1',
  );
  meal1.mealItems = [mealItem1, mealItem2];

  final meal2 = Meal(
    id: 2,
    plan: 1,
    time: const TimeOfDay(hour: 22, minute: 5),
    name: 'Initial Name 2',
  );
  meal2.mealItems = [mealItem3];

  final NutritionalPlan plan = NutritionalPlan(
    id: 1,
    description: 'Less fat, more protein',
    creationDate: DateTime(2021, 5, 23),
    startDate: DateTime(2021, 5, 23),
  );
  plan.meals = [meal1, meal2];

  // Add logs
  plan.diaryEntries.add(Log.fromMealItem(mealItem1, 1, 1, DateTime(2021, 6, 1)));
  plan.diaryEntries.add(Log.fromMealItem(mealItem2, 1, 1, DateTime(2021, 6, 1)));
  plan.diaryEntries.add(Log.fromMealItem(mealItem3, 1, 1, DateTime(2021, 6, 10)));

  return plan;
}

NutritionalPlan getNutritionalPlanScreenshot() {
  final random = Random();

  final mealItem1 = MealItem(ingredientId: 1, amount: 100, ingredient: muesli);
  final mealItem2 = MealItem(ingredientId: 2, amount: 75, ingredient: milk);
  final mealItem3 = MealItem(ingredientId: 3, amount: 100, ingredient: apple);

  final meal1 = Meal(
    id: 1,
    plan: 1,
    time: const TimeOfDay(hour: 8, minute: 30),
    name: 'Breakfast',
    mealItems: [mealItem1, mealItem2],
  );

  final meal2 = Meal(
    id: 2,
    plan: 1,
    time: const TimeOfDay(hour: 11, minute: 0),
    name: 'Snack 1',
    mealItems: [mealItem3],
  );

  final NutritionalPlan plan = NutritionalPlan(
    id: 1,
    description: 'Diet',
    creationDate: DateTime(2021, 5, 23),
    startDate: DateTime(2021, 5, 23),
    meals: [meal1, meal2],
  );

  // Add logs
  plan.diaryEntries.add(Log.fromMealItem(mealItem1, 1, 1, DateTime.now()));
  plan.diaryEntries.add(Log.fromMealItem(mealItem2, 1, 1, DateTime.now()));
  plan.diaryEntries.add(Log.fromMealItem(mealItem3, 1, 1, DateTime.now()));

  for (final i in plan.diaryEntries) {
    i.datetime = DateTime.now();
    i.amount = i.amount / (1.0 + random.nextDouble() * (4.0 - 1.0));
  }

  final log = Log(
    mealId: meal1.id,
    ingredientId: 1,
    weightUnitId: 1,
    amount: 40,
    planId: plan.id!,
    datetime: DateTime.now(),
  );
  log.ingredient = cake;
  plan.diaryEntries.add(log);

  return plan;
}