import json
import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))

from generate_release_closure import generate


ROOT = Path(__file__).resolve().parents[1]
GATE = ROOT / "coverage/release-candidate-gate.report.json"


class ReleaseCandidateGateTests(unittest.TestCase):
    def test_gate_contract_stops_release_on_explicit_blockers(self):
        gate = json.loads(GATE.read_text(encoding="utf-8"))
        self.assertEqual(gate["schema"], "release-candidate-gate.v1")
        self.assertEqual(gate["status"], "blocked")
        self.assertEqual(gate["release_decision"], "blocked_not_release_candidate")
        self.assertEqual(gate["release_action"], "STOP_RELEASE")
        self.assertFalse(gate["candidate_eligible"])
        self.assertEqual(gate["blocked_count"], 6)
        self.assertTrue(gate["checks"]["context_consistency"]["context_ids_match"])
        self.assertEqual(gate["checks"]["locked_schema_contracts"]["status"], "verified")
        self.assertEqual(gate["checks"]["license_source_index"]["status"], "verified")
        self.assertEqual(gate["checks"]["migration_rollback_offline"]["status"], "verified")
        self.assertEqual(gate["checks"]["release_prerequisites"]["status"], "blocked")
        self.assertIn("official_oracle_missing", {blocker["id"] for blocker in gate["blockers"]})
        license_blocker = next(blocker for blocker in gate["blockers"] if blocker["id"] == "license_closure_incomplete")
        self.assertIn("57 Web/WASM", license_blocker["reason"])
        self.assertEqual(gate["failure_policy"]["on_hash_mismatch"], "STOP_RELEASE")

    def test_gate_generation_is_deterministic(self):
        before = GATE.read_bytes()
        generated = generate(ROOT, ROOT / "coverage")
        after = GATE.read_bytes()
        self.assertEqual(before, after)
        self.assertEqual(generated["gate"]["report_sha256"], json.loads(after.decode())["report_sha256"])


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