import hashlib
import json
import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))
from generate_wasm_feature_matrix_t5 import OUTPUT, canonical, digest, generate


ROOT = Path(__file__).resolve().parents[1]


class WasmFeatureMatrixT5Tests(unittest.TestCase):
    def test_contract(self):
        report = json.loads((ROOT / OUTPUT).read_text(encoding="utf-8"))
        self.assertEqual(report["schema"], "wasm-feature-matrix-t5.v1")
        self.assertEqual(report["task_id"], "T5-FULL-MATRIX-01")
        self.assertEqual(report["context_id"], "linuxcnc-2.10.0-pre0-wasm-m1-py-c1")
        self.assertEqual(report["counts"]["domains"], 9)
        self.assertEqual(set(report["counts"]["statuses"]), {"verified", "blocked", "queued"})
        self.assertEqual(report["counts"]["statuses"]["blocked"], 9)
        self.assertEqual(report["status"], "blocked")
        self.assertFalse(report["candidate_eligible"])
        self.assertEqual(report["release_action"], "STOP_RELEASE")
        for row in report["matrix"]:
            for key in ("owner", "inputs", "tests", "differences", "stop_reason"):
                self.assertTrue(row[key], f"{row['id']} missing {key}")
            self.assertIn(row["status"], {"verified", "blocked", "queued"})
        self.assertEqual(report["checks"]["no_selected_case_promotion"]["status"], "verified")
        self.assertGreater(report["counts"]["test_commands"], 0)

    def test_self_hash_and_determinism(self):
        before = (ROOT / OUTPUT).read_bytes()
        report = generate(ROOT, ROOT / OUTPUT)
        after = (ROOT / OUTPUT).read_bytes()
        self.assertEqual(before, after)
        self.assertEqual(report["report_sha256"], json.loads(before)["report_sha256"])
        self.assertEqual(report["report_sha256"], digest({key: value for key, value in report.items() if key != "report_sha256"}))


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