import base64
import gzip
import json
import re
from io import BytesIO

import requests
import yaml

from cookbook.helper.ingredient_parser import IngredientParser
from cookbook.helper.recipe_html_import import get_recipe_from_source
from cookbook.helper.recipe_url_import import iso_duration_to_minutes
from cookbook.integration.integration import Integration
from cookbook.models import Recipe, Step, Ingredient, Keyword
from gettext import gettext as _


class CookBookApp(Integration):

    def import_file_name_filter(self, zip_info_object):
        return zip_info_object.filename.endswith('.html')

    def get_recipe_from_file(self, file):
        recipe_html = file.getvalue().decode("utf-8")

        recipe_json, recipe_tree, html_data, images = get_recipe_from_source(recipe_html, 'CookBookApp', self.request)

        recipe = Recipe.objects.create(
            name=recipe_json['name'].strip(),
            created_by=self.request.user, internal=True,
            space=self.request.space)

        try:
            recipe.servings = re.findall('([0-9])+', recipe_json['recipeYield'])[0]
        except Exception as e:
            pass

        try:
            recipe.working_time = iso_duration_to_minutes(recipe_json['prepTime'])
            recipe.waiting_time = iso_duration_to_minutes(recipe_json['cookTime'])
        except Exception:
            pass

        step = Step.objects.create(instruction=recipe_json['recipeInstructions'], space=self.request.space, )

        if 'nutrition' in recipe_json:
            step.instruction = step.instruction + '\n\n' + recipe_json['nutrition']

        step.save()
        recipe.steps.add(step)

        ingredient_parser = IngredientParser(self.request, True)
        for ingredient in recipe_json['recipeIngredient']:
                f = ingredient_parser.get_food(ingredient['ingredient']['text'])
                u = ingredient_parser.get_unit(ingredient['unit']['text'])
                step.ingredients.add(Ingredient.objects.create(
                    food=f, unit=u, amount=ingredient['amount'], note=ingredient['note'], space=self.request.space,
                ))

        if len(images) > 0:
            try:
                response = requests.get(images[0])
                self.import_recipe_image(recipe, BytesIO(response.content))
            except Exception as e:
                print('failed to import image ', str(e))

        recipe.save()
        return recipe