import json
import unittest
from src.export.strategies.json_export import json_export
from src.models.recipe_model import recipe_model
from src.models.nomenclature_group_model import nomenclature_group_model
from src.models.nomenclature_model import nomenclature_model
from src.models.ingredient_model import ingredient_model
from src.export.strategies.csv_export import csv_export
from src.export.exporter import exporter
from src.models.measurement_unit_model import measurement_unit_model

from src.storage.storage import storage


#
# Набор автотестов для проверки работы экспорта
# #
class test_export(unittest.TestCase):
    def test_csv_munits(self):
        # Подготовка
        strg = storage()

        munit1 = measurement_unit_model("g")
        munit2 = measurement_unit_model("kg")
        munit3 = measurement_unit_model("t")

        strg.data[strg.measurement_unit_key()] = [munit1, munit2, munit3]

        exp = exporter(csv_export())

        expected = f"base_coefficient;base_measurement_unit;id;name\n{munit1.base_coefficient};{str(munit1.base_measurement_unit)};{munit1.id};{munit1.name}\n{munit2.base_coefficient};{str(munit2.base_measurement_unit)};{munit2.id};{munit2.name}\n{munit3.base_coefficient};{str(munit3.base_measurement_unit)};{munit3.id};{munit3.name}"

        # Действие
        csv = exp.export_by_key(strg.measurement_unit_key())

        # Проверки
        assert isinstance(csv, str)
        assert csv == expected

    def test_json_recipe(self):
        strg = storage()

        nom = nomenclature_model(
            "A",
            "AA",
            measurement_unit_model("g"),
            nomenclature_group_model.create_group(),
        )
        ing = ingredient_model("AAA", nom, 10, nom.measurement_unit)
        rec = recipe_model.create("AAAA", [ing], ["1", "2", "3"])

        conv = exporter(json_export()).export_models([rec])

        conv = json.loads(conv)

        assert len(conv["items"][0]["ingredients"]) == 1
        assert (conv["items"][0]["id"]) == str(rec.id)
        assert len(conv["items"][0]["steps"]) == len(rec.steps)