from pycnic.core import WSGI, Handler
from key_replacer import KeyReplacer
import requests
import json

class Base(Handler):
    hostname = "https://www.themealdb.com/api/json/v1/1/"

    def __init__(self):
        self.replacable_keys = KeyReplacer(
            [
                ["idMeal", "id"],
                ["strMeal", "name"],
                ["strCategory", "category"],
                ["strArea", "area"],
                ["strInstructions", "instructions"],
                ["strDrinkAlternate", "alternate_drink"],
                ["strMealThumb", "thumbnail_url"],
                ["strTags", "tags"],
                ["strYoutube", "youtube_url"],
                ["strSource", "source_url"],
                ["dateModified", "date_modified"],
            ])
    def cleanup(self, meal):
        self.replacable_keys.do_replace(meal)
        self.cleanup_ingredients(meal)

    def cleanup_ingredients(self, meal):
        potential_length = 20
        true_length = 0
        # Cleanup Empty Values
        for i in reversed(range(potential_length)):
            x = str(i + 1)
            if (meal["strIngredient" + x] == ''):
                true_length = i
                del meal["strIngredient" + x]
                del meal["strMeasure" + x]

        # Convert Ingredients/Measures to Array of Objects
        meal["ingredients"] = [0]*true_length
        for i in range(0, true_length):
            x = str(i + 1)
            meal["ingredients"][i] = {
                    "name": meal["strIngredient" + x],
                    "measure": meal["strMeasure" + x],
                }
            del meal["strIngredient" + x]
            del meal["strMeasure" + x]

class Details(Base):
    def get(self, meal_id = ''):
        response = json.loads(requests.get(self.hostname + "lookup.php?i=" + meal_id).text)
        for meal in response["meals"]:
            self.cleanup(meal)

        return json.dumps(response)


class Random(Base):
    def get(self):
        response = json.loads(requests.get(self.hostname + "random.php").text)
        for meal in response["meals"]:
            self.cleanup(meal)

        return json.dumps(response)

class app(WSGI):
  routes = [
    ("/meals/random", Random()),
    ("/meal/([\w]+)", Details())
  ]