import json
import tempfile
import unittest
from pathlib import Path

from scripts.run_gold_test import read_json_object, scenario_paths, validate_required_keys


class GoldRunnerTests(unittest.TestCase):
    def test_missing_transcript_is_reported(self) -> None:
        with tempfile.TemporaryDirectory() as directory:
            scenario = Path(directory)
            (scenario / "expected.json").write_text("{}", encoding="utf-8")

            with self.assertRaisesRegex(FileNotFoundError, "Missing transcript.txt"):
                scenario_paths(scenario)

    def test_missing_expected_is_reported(self) -> None:
        with tempfile.TemporaryDirectory() as directory:
            scenario = Path(directory)
            (scenario / "transcript.txt").write_text("A: Hello.", encoding="utf-8")

            with self.assertRaisesRegex(FileNotFoundError, "Missing expected.json"):
                scenario_paths(scenario)

    def test_invalid_expected_json_is_reported(self) -> None:
        with tempfile.TemporaryDirectory() as directory:
            path = Path(directory) / "expected.json"
            path.write_text("{invalid", encoding="utf-8")

            with self.assertRaisesRegex(ValueError, "Invalid JSON"):
                read_json_object(path)

    def test_missing_required_schema_keys_are_reported(self) -> None:
        with tempfile.TemporaryDirectory() as directory:
            path = Path(directory) / "expected.json"
            data = {
                "facts": [],
                "decisions": [],
                "todos": [],
                "questions": [],
                "positions": [],
            }
            path.write_text(json.dumps(data), encoding="utf-8")

            with self.assertRaisesRegex(ValueError, "technical"):
                validate_required_keys(read_json_object(path), path)


if __name__ == "__main__":
    unittest.main()