import difflib
import json
from pathlib import Path

import tomli

from joj3_config_generator.generator import create_joj3_task_conf
from joj3_config_generator.models import answer


def load_case(case_name: str) -> None:
    root = Path(__file__).resolve().parent
    answers_json_path = root / case_name / "answers.json"
    task_toml_path = root / case_name / "task.toml"
    answers_dict = json.loads(answers_json_path.read_text())
    language = next(x for x in answer.LANGUAGES if x.name == answers_dict["language"])
    language.set_stages(answers_dict["stages"])
    language.set_attribute(answers_dict["attribute"])
    answers = answer.Answers(name=answers_dict["name"], language=language)
    expected_result = tomli.loads(task_toml_path.read_text())
    result = create_joj3_task_conf(answers).model_dump(
        mode="json", by_alias=True, exclude_none=True, exclude_unset=True
    )
    if result != expected_result:
        result_str = json.dumps(result, indent=2, ensure_ascii=False).splitlines()
        expected_str = json.dumps(
            expected_result, indent=2, ensure_ascii=False
        ).splitlines()
        diff = "\n".join(difflib.ndiff(expected_str, result_str))
        print(f"Test case '{case_name}' failed!\nDifferences:\n{diff}")
    assert result == expected_result