import pytest

from nisse_dev.gates import Approved, Gate, Ignored, PlanRevision, Rejected

REVISION = PlanRevision(gate="arch", rev=2, content="the plan")
OPERATORS = {"don"}


def gate() -> Gate:
    return Gate(REVISION, OPERATORS)


def test_bare_approve_binds_to_current_revision() -> None:
    result = gate().evaluate("don", "approve", channel="transport")
    assert isinstance(result, Approved)
    assert result.revision.tag == "rev-2"
    assert result.approver == "don"


def test_tagged_approve_matching_current_revision() -> None:
    result = gate().evaluate("don", "approve rev-2", channel="gitea")
    assert isinstance(result, Approved)
    assert result.channel == "gitea"


def test_stale_revision_tag_is_ignored_with_notice() -> None:
    result = gate().evaluate("don", "approve rev-1", channel="transport")
    assert isinstance(result, Ignored)
    assert result.notice is not None
    assert "rev-1" in result.notice
    assert "rev-2" in result.notice


def test_any_other_reply_is_rejection_with_feedback() -> None:
    result = gate().evaluate("don", "too vague, split milestone 1", "transport")
    assert isinstance(result, Rejected)
    assert result.feedback == "too vague, split milestone 1"


def test_unknown_sender_is_silently_ignored() -> None:
    result = gate().evaluate("mallory", "approve", channel="transport")
    assert isinstance(result, Ignored)
    assert result.notice is None


def test_approve_with_trailing_words_is_rejection() -> None:
    # "approve, but rename the module" is feedback, not approval (A4: the
    # typed word approve, nothing else).
    result = gate().evaluate("don", "approve, but rename the module", "transport")
    assert isinstance(result, Rejected)


@pytest.mark.parametrize(
    "text", ["Approve", "APPROVE", "Approve.", "approve!", "  Approve  rev-2 "]
)
def test_approval_ignores_case_and_trailing_punctuation(text: str) -> None:
    # A phone keyboard's "Approve" used to count as rejection feedback (#64).
    assert isinstance(gate().evaluate("don", text, channel="transport"), Approved)


def test_a_capitalised_stale_approval_is_still_refused() -> None:
    result = gate().evaluate("don", "Approve REV-1", channel="transport")
    assert isinstance(result, Ignored)


def test_a_sentence_containing_approve_is_still_feedback() -> None:
    result = gate().evaluate("don", "I approve of most of it", channel="transport")
    assert isinstance(result, Rejected)
    assert result.feedback == "I approve of most of it"