import tempfile
import unittest
from pathlib import Path

from app.services.dataset_export import (
    APPROVED_EXPORT_STATUS,
    DRY_RUN_EXPORT_STATUS,
    ExportKeyMaps,
    build_dataset_record,
    build_manifest,
    cohen_kappa,
    intraclass_correlation,
    scan_for_pii,
    sha256_file,
    write_jsonl,
)


class DatasetExportTests(unittest.TestCase):
    def test_build_dataset_record_uses_masked_text_and_pseudonymous_keys(self) -> None:
        keys = ExportKeyMaps()
        record = build_dataset_record(
            {
                "session_id": "11111111-1111-1111-1111-111111111111",
                "learner_id": "22222222-2222-2222-2222-222222222222",
                "turn_id": "33333333-3333-3333-3333-333333333333",
                "persona_code": "P1",
                "stage": "rapport",
                "speaker": "counselor",
                "text": "raw text should never be exported",
                "text_masked": "안녕하세요, [NAME]님.",
                "feedback_scores": [{"dimension": "공감", "score": 4}],
            },
            item_index=1,
            export_manifest_id="phase3-rl-seed-test",
            keys=keys,
        )

        self.assertEqual(record["participant_key"], "PX-0001")
        self.assertEqual(record["session_key"], "SX-0001")
        self.assertEqual(record["turn_key"], "TX-000001")
        self.assertEqual(record["text_masked"], "안녕하세요, [NAME]님.")
        blob = str(record)
        self.assertNotIn("11111111-1111-1111-1111-111111111111", blob)
        self.assertNotIn("22222222-2222-2222-2222-222222222222", blob)
        self.assertNotIn("raw text should never be exported", blob)

    def test_pii_scan_detects_identifiers_without_raw_samples(self) -> None:
        findings = scan_for_pii(
            {
                "text_masked": "메일 learner@hs.ac.kr, 전화 010-1234-5678, 주민 990101-1234567",
                "api_key": "sk-should-not-appear",
            }
        )

        kinds = {finding["kind"] for finding in findings}
        self.assertIn("email", kinds)
        self.assertIn("phone", kinds)
        self.assertIn("national_id", kinds)
        self.assertIn("blocked_field", kinds)
        self.assertFalse(any("learner@hs.ac.kr" in finding["sample"] for finding in findings))
        self.assertFalse(any("010-1234-5678" in finding["sample"] for finding in findings))

    def test_agreement_metrics(self) -> None:
        annotations = [
            {"item_id": "1", "labels": {"appropriateness": "good", "rapport_signal": 4.0}},
            {"item_id": "1", "labels": {"appropriateness": "good", "rapport_signal": 4.1}},
            {"item_id": "2", "labels": {"appropriateness": "bad", "rapport_signal": 2.0}},
            {"item_id": "2", "labels": {"appropriateness": "bad", "rapport_signal": 2.1}},
            {"item_id": "3", "labels": {"appropriateness": "good", "rapport_signal": 5.0}},
            {"item_id": "3", "labels": {"appropriateness": "good", "rapport_signal": 5.0}},
        ]

        self.assertEqual(cohen_kappa(annotations, "appropriateness"), 1.0)
        self.assertGreater(intraclass_correlation(annotations, "rapport_signal") or 0, 0.9)

    def test_manifest_gate_blocks_unapproved_approved_status(self) -> None:
        with self.assertRaisesRegex(ValueError, "PII scan must pass"):
            build_manifest(
                export_id="phase3-rl-seed-test",
                dataset_name="vignette_phase3_recursive_learning_seed",
                export_status=APPROVED_EXPORT_STATUS,
                purpose="test",
                records=[],
                jsonl_path="03-export/anonymized_dataset.jsonl",
                jsonl_sha256="",
                pii_findings=[{"kind": "email", "path": "$.text_masked", "sample": "<email:hs.ac.kr>"}],
                participants_included=0,
                agreement={"kappa": 0.59, "icc": 0.74, "gold_status": "not_gold"},
            )

    def test_jsonl_hash_manifest_dry_run(self) -> None:
        record = {
            "schema": "phase3_dataset_item_v1",
            "item_id": "DI-000001",
            "source_refs": {"session_started_at": "2026-06-27T00:00:00Z"},
        }
        with tempfile.TemporaryDirectory() as tmp:
            path = Path(tmp) / "03-export" / "anonymized_dataset.jsonl"
            write_jsonl([record], path)
            digest = sha256_file(path)
            manifest = build_manifest(
                export_id="phase3-rl-seed-test",
                dataset_name="vignette_phase3_recursive_learning_seed",
                export_status=DRY_RUN_EXPORT_STATUS,
                purpose="test",
                records=[record],
                jsonl_path="03-export/anonymized_dataset.jsonl",
                jsonl_sha256=digest,
                pii_findings=[],
                participants_included=1,
            )
        self.assertEqual(manifest["files"][0]["rows"], 1)
        self.assertEqual(manifest["files"][0]["sha256"], digest)
        self.assertEqual(manifest["pii_scan"]["status"], "pass")


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