import requests
import json
import os

READ_KEY_FROM_FILE = True

def read_json_to_dict(file_path) -> dict:
    try:
        with open(file_path, 'r') as file:
            data = json.load(file)
            return data
    except FileNotFoundError:
        print("File not found at the specified path.")
        return {}
    except json.JSONDecodeError:
        print("Error decoding JSON file.")
        return {}

def get_recipes_by_macronutrients(spoonacular_api_key: str, calories: int, protein_grams: int, carbs_grams: int, fat_grams: int, nb_recipes: int) -> list:
    if not spoonacular_api_key:
        return []
    params = {
        'apiKey': spoonacular_api_key,
        'minCalories': int(calories) - 50,
        'maxCalories': int(calories) + 50,
        'minProtein': int(protein_grams) - 5,
        'maxProtein': int(protein_grams) + 5,
        'minCarbs': int(carbs_grams) - 5,
        'maxCarbs': int(carbs_grams) + 5,
        'minFat': int(fat_grams) - 5,
        'maxFat': int(fat_grams) + 5,
        'number': nb_recipes,
    }

    response = requests.get(url='https://api.spoonacular.com/recipes/findByNutrients', params=params)

    if response.status_code == 200:
        recipes = response.json()
        if recipes:
            return recipes
        else:
            return []
    else:
        print(f"Error {response.status_code}: {response.text}")
        return []

def get_recipe_information_by_id(spoonacular_api_key, id) -> dict:
    if not spoonacular_api_key:
        return {}
    params = {
        'apiKey': spoonacular_api_key,
    }
    response = requests.get(url=f'https://api.spoonacular.com/recipes/{id}/information', params=params)

    if response.status_code == 200:
        information = response.json()
        return information if information else {}
    else:
        print(f"Error {response.status_code}: {response.text}")
        return {}
    
def print_recipe_macronutrients(recipe):
    if recipe:
        print(f"Recipe: {recipe['title']}")        
        print(f"Calories: {recipe['calories']}")
        print(f"Protein: {recipe['protein']}")
        print(f"Carbs: {recipe['carbs']}")
        print(f"Fat: {recipe['fat']}")
    else:
        print("No recipe found")

def print2string_recipe_macronutrients(recipe) -> str:
    string = f""
    if recipe:
        string += f"Recipe: {recipe['title']}\n"       
        string += f"Calories: {recipe['calories']}\n"
        string += f"Protein: {recipe['protein']}\n"
        string += f"Carbs: {recipe['carbs']}\n"
        string += f"Fat: {recipe['fat']}\n"
    else:
        string += "No recipe found\n"    
    return string

def print_recipe_information(recipe_info):
    if recipe_info:
        print(f"Ingredients:")
        for ingredient in recipe_info["extendedIngredients"]:
            print(f"- {ingredient['original']}")
        url = recipe_info['spoonacularSourceUrl']
        print(f"URL: {url}\n")
    else:
        print("No recipe information found")

def print2string_recipe_information(recipe_info) -> str:
    string = ""
    if recipe_info:        
        string += f"Ingredients:\n"
        for ingredient in recipe_info["extendedIngredients"]:
            string += f"- {ingredient['original']}\n"
        url = recipe_info['spoonacularSourceUrl']
        string += f"URL: {url}\n"
    else:
        string += "No recipe information found\n"
    return string

def print_recipe(recipe, recipe_info):
    if recipe:
        print_recipe_macronutrients(recipe)
    else:
        print("No recipe found")
    if recipe_info:
        print_recipe_information(recipe_info)
    else:
        print("No recipe information found")

def print2string_recipe(recipe, recipe_info) -> str:
    string = ""
    if recipe:
        string += print2string_recipe_macronutrients(recipe)
    else:
        string += "No recipe found\n"
    if recipe_info:
        string += print2string_recipe_information(recipe_info)
    else:
        string += "No recipe information found\n"
    return string

if __name__ == "__main__":

    if READ_KEY_FROM_FILE:
        CURRENT_DIR = os.path.dirname(os.path.realpath(__file__)) 
        spoonacular_api_key = read_json_to_dict(file_path=f"{CURRENT_DIR}/api_key.json")['spoonacular_api_key']        
    else:
        spoonacular_api_key = input('Enter your spoonacular api key: ')

    recipes = get_recipes_by_macronutrients(
        spoonacular_api_key=spoonacular_api_key,
        calories=600,
        protein_grams=25,
        carbs_grams=50,
        fat_grams=25,
        nb_recipes=3)
    for recipe in recipes:
        recipe_info = get_recipe_information_by_id(
            spoonacular_api_key=spoonacular_api_key,
            id=recipe['id'])
        print()
        print(print2string_recipe(recipe, recipe_info))