from django.contrib import auth
from django_scopes import scopes_disabled

from cookbook.helper.unit_conversion_helper import get_conversions
from cookbook.models import Unit, Food, Ingredient, UnitConversion


def test_unit_conversions(space_1, u1_s1):
    with scopes_disabled():
        unit_gram = Unit.objects.create(name='gram', base_unit='g', space=space_1)
        unit_pcs = Unit.objects.create(name='pcs', base_unit='', space=space_1)
        unit_floz1 = Unit.objects.create(name='fl. oz 1', base_unit='imperial_fluid_ounce', space=space_1)  # US and UK use different volume systems (US vs imperial)
        unit_floz2 = Unit.objects.create(name='fl. oz 2', base_unit='fluid_ounce', space=space_1)
        unit_fantasy = Unit.objects.create(name='Fantasy Unit', base_unit='', space=space_1)

        food_1 = Food.objects.create(name='Test Food 1', space=space_1)
        food_2 = Food.objects.create(name='Test Food 2', space=space_1)

        print('\n----------- TEST BASE CONVERSIONS - GRAM ---------------')
        ingredient_food_1_gram = Ingredient.objects.create(
            food=food_1,
            unit=unit_gram,
            amount=100,
            space=space_1,
        )

        print(get_conversions(ingredient_food_1_gram))

        print('\n----------- TEST BASE CONVERSIONS - VOLUMES ---------------')

        ingredient_food_1_floz1 = Ingredient.objects.create(
            food=food_1,
            unit=unit_floz1,
            amount=100,
            space=space_1,
        )

        print(get_conversions(ingredient_food_1_floz1))

        print('\n----------- TEST BASE CUSTOM CONVERSION - TO CUSTOM CONVERSION ---------------')
        UnitConversion.objects.create(
            base_amount=1000,
            base_unit=unit_gram,
            converted_amount=1337,
            converted_unit=unit_fantasy,
            space=space_1,
            created_by=auth.get_user(u1_s1),
        )

        print(get_conversions(ingredient_food_1_gram))

        print('\n----------- TEST CUSTOM CONVERSION - NO PCS ---------------')
        ingredient_food_1_pcs = Ingredient.objects.create(
            food=food_1,
            unit=unit_pcs,
            amount=5,
            space=space_1,
        )

        ingredient_food_2_pcs = Ingredient.objects.create(
            food=food_2,
            unit=unit_pcs,
            amount=5,
            space=space_1,
        )

        print(get_conversions(ingredient_food_1_pcs))
        print(get_conversions(ingredient_food_2_pcs))

        print('\n----------- TEST CUSTOM CONVERSION - PCS TO MULTIPLE BASE ---------------')
        uc1 = UnitConversion.objects.create(
            base_amount=1,
            base_unit=unit_pcs,
            converted_amount=200,
            converted_unit=unit_gram,
            food=food_1,
            space=space_1,
            created_by=auth.get_user(u1_s1),
        )

        print(get_conversions(ingredient_food_1_pcs))
        print(get_conversions(ingredient_food_2_pcs))

        print('\n----------- TEST CUSTOM CONVERSION - REVERSE CONVERSION ---------------')
        uc2 = UnitConversion.objects.create(
            base_amount=200,
            base_unit=unit_gram,
            converted_amount=1,
            converted_unit=unit_pcs,
            food=food_2,
            space=space_1,
            created_by=auth.get_user(u1_s1),
        )

        print(get_conversions(ingredient_food_1_pcs))
        print(get_conversions(ingredient_food_2_pcs))