import uuid

from tht.decisions import DecisionInput
from tht.phase import current_phase, cte_plan, next_cte
from tht.session.filesystem_repository import FilesystemSessionRepository
from tht.session.models import PrincipalContext, SessionManifest
from tht.session.store import persist_verified_finalization


def _manifest(session_id: str) -> SessionManifest:
    return SessionManifest(
        id=session_id,
        created_at="2026-07-16T10:00:00Z",
        question="Which patients had an ablation?",
        database="testdb",
        schema="public",
    )


def test_phase_helpers_fold_the_repository_snapshot_not_a_session_path(tmp_path):
    repository = FilesystemSessionRepository(
        tmp_path / "home", "demo", PrincipalContext(issuer="local", subject="alice")
    )
    session_id = str(uuid.uuid4())
    repository.create(_manifest(session_id))
    repository.write_artifact(session_id, "cte_plan", '["base_patients"]')
    repository.append_decisions(
        session_id,
        [
            DecisionInput(type="phase_approved", subject="phase:1"),
            DecisionInput(type="phase_auto_approved", subject="phase:2"),
            DecisionInput(type="cte_approved", subject="base_patients"),
        ],
    )

    snapshot = repository.get(session_id)

    assert current_phase(snapshot) == 3
    assert cte_plan(snapshot) == ["base_patients"]
    assert next_cte(snapshot) is None


def test_verified_finalization_commits_report_evidence_and_status_through_repository(tmp_path):
    repository = FilesystemSessionRepository(
        tmp_path / "home", "demo", PrincipalContext(issuer="local", subject="alice")
    )
    session_id = str(uuid.uuid4())
    repository.create(_manifest(session_id))

    persist_verified_finalization(
        repository,
        session_id,
        validation_report="# Validation\n\nverified against DWH\n",
        evidence='[{"source":"review"}]\n',
    )

    snapshot = repository.get(session_id)
    assert snapshot.manifest.status == "finalized"
    assert snapshot.artifacts["validation_report"] == "# Validation\n\nverified against DWH\n"
    assert snapshot.artifacts["evidence"] == '[{"source":"review"}]\n'