from __future__ import annotations

import csv
import importlib.util
import sys
import tempfile
import unittest
from pathlib import Path


REPO_ROOT = Path(__file__).resolve().parents[1]
CASES = REPO_ROOT / "skills" / "tester" / "scripts" / "generate_cases_csv.py"
RUNS = REPO_ROOT / "skills" / "tester" / "scripts" / "generate_run_csv.py"
sys.path.insert(0, str(RUNS.parent))


def load_module(name: str, path: Path):
    spec = importlib.util.spec_from_file_location(name, path)
    assert spec and spec.loader
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)
    return module


class TesterRunRecordTests(unittest.TestCase):
    def test_cases_csv_contains_definitions_only(self) -> None:
        cases = load_module("tester_cases_csv", CASES)
        with tempfile.TemporaryDirectory() as temp:
            root = Path(temp)
            cases_dir = root / ".pouch" / "tester" / "cases"
            cases_dir.mkdir(parents=True)
            (root / ".pouch" / "tester" / "catalog.yaml").write_text(
                "categories:\n  - id: smoke\n    title: Smoke\n",
                encoding="utf-8",
            )
            (cases_dir / "smoke.yaml").write_text(
                "category: smoke\ncases:\n  - id: TC-1\n    title: One\n    what: one\n    lifecycle: active\n    tag: smoke\n    risk: readonly\n    how: {steps: [open]}\n    expected: [{kind: visible-text, value: ready}]\n",
                encoding="utf-8",
            )
            output = cases.export_cases_csv(root)
            with output.open(encoding="utf-8-sig", newline="") as handle:
                rows = list(csv.DictReader(handle))
            self.assertEqual(rows[0]["id"], "TC-1")
            self.assertNotIn("last_result", rows[0])
            self.assertNotIn("last_executed", rows[0])

    def test_run_id_has_random_collision_suffix(self) -> None:
        runs = load_module("tester_run_csv", RUNS)
        first = runs.new_run_id("smoke")
        second = runs.new_run_id("smoke")
        self.assertNotEqual(first, second)
        self.assertRegex(first, r"^\d{8}T\d{6}Z-smoke-[0-9a-f]{6}$")


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