"""Profile-driven execution selection (ACT-ADR-006 / ACTIVITY-WP-0032-T02)."""

from __future__ import annotations

import pytest

from activity_core.glas_profile import (
    EXECUTION_REF_KEYS,
    ProfileRefError,
    normalise_execution_refs,
    resolve_execution_selector,
    validate_profile_ref,
)


class TestProfileRefStructure:
    def test_accepts_a_pinned_ref(self) -> None:
        assert (
            validate_profile_ref("harness.agent-dev-local@1.0.0")
            == "harness.agent-dev-local@1.0.0"
        )

    def test_strips_surrounding_whitespace(self) -> None:
        assert validate_profile_ref("  harness.agent-dev@1.0.0\n") == "harness.agent-dev@1.0.0"

    def test_requires_a_version_pin(self) -> None:
        """Glas resolves an unpinned ref against every version and refuses it
        as ambiguous — catch that here instead, without knowing any profile."""
        with pytest.raises(ProfileRefError, match="must pin a version"):
            validate_profile_ref("harness.agent-dev-local")

    @pytest.mark.parametrize("bad", ["", "   ", None, 42, ["harness@1.0.0"]])
    def test_rejects_empty_or_non_string(self, bad) -> None:
        with pytest.raises(ProfileRefError):
            validate_profile_ref(bad)

    @pytest.mark.parametrize(
        "bad",
        ["harness agent@1.0.0", "harness.agent@1.0 .0", "harness\tagent@1.0.0"],
    )
    def test_rejects_internal_whitespace(self, bad: str) -> None:
        with pytest.raises(ProfileRefError, match="whitespace"):
            validate_profile_ref(bad)

    @pytest.mark.parametrize("bad", ["@1.0.0", "-harness@1.0.0", "har/ness@1.0.0"])
    def test_rejects_invalid_ids(self, bad: str) -> None:
        with pytest.raises(ProfileRefError, match="invalid id"):
            validate_profile_ref(bad)

    @pytest.mark.parametrize("bad", ["harness@", "harness@v1.0.0", "harness@latest"])
    def test_rejects_invalid_versions(self, bad: str) -> None:
        with pytest.raises(ProfileRefError, match="invalid version"):
            validate_profile_ref(bad)


class TestNoFallbackToApproachHint:
    """ACT-ADR-006 §2 — the single most important property of this change.

    approach_hint must never override, synthesize, or fall back from an absent
    or invalid harness_profile_ref. A silent fallback would reintroduce the
    claim-time routing failure of 2026-08-17.
    """

    def test_hint_does_not_synthesize_a_missing_profile(self) -> None:
        profile, hint = resolve_execution_selector(None, "sbom-rescan")

        assert profile is None, "approach_hint must not become a profile ref"
        assert hint == "sbom-rescan"

    def test_hint_does_not_rescue_a_malformed_profile(self) -> None:
        with pytest.raises(ProfileRefError, match="must pin a version"):
            resolve_execution_selector("harness.agent-dev-local", "sbom-rescan")

    def test_malformed_profile_raises_even_with_no_hint(self) -> None:
        with pytest.raises(ProfileRefError):
            resolve_execution_selector("not a ref", None)

    def test_profile_does_not_overwrite_the_legacy_hint(self) -> None:
        """Coexistence, not replacement: both are carried."""
        profile, hint = resolve_execution_selector(
            "harness.agent-dev-local@1.0.0", "sbom-rescan"
        )

        assert profile == "harness.agent-dev-local@1.0.0"
        assert hint == "sbom-rescan"

    def test_absent_profile_is_allowed_during_coexistence(self) -> None:
        assert resolve_execution_selector(None, None) == (None, None)

    def test_absent_profile_is_an_error_once_required(self, monkeypatch) -> None:
        monkeypatch.setenv("ACTIVITY_CORE_REQUIRE_HARNESS_PROFILE", "true")

        with pytest.raises(ProfileRefError, match="cannot substitute"):
            resolve_execution_selector(None, "sbom-rescan")

    def test_required_mode_still_accepts_a_valid_profile(self, monkeypatch) -> None:
        monkeypatch.setenv("ACTIVITY_CORE_REQUIRE_HARNESS_PROFILE", "1")

        profile, _ = resolve_execution_selector("harness.agent-dev@2.1.0", None)

        assert profile == "harness.agent-dev@2.1.0"

    def test_unknown_but_well_formed_profile_is_left_for_glas(self) -> None:
        profile, _ = resolve_execution_selector(
            "harness.not-in-any-local-catalog@9.9.9",
            None,
        )

        assert profile == "harness.not-in-any-local-catalog@9.9.9"

    def test_blank_hint_is_normalised_away(self) -> None:
        assert resolve_execution_selector(None, "   ") == (None, None)


class TestExecutionRefs:
    def test_keeps_the_contract_refs(self) -> None:
        refs = normalise_execution_refs(
            {
                "correlation_id": "activity-42",
                "assignment_ref": "role-assignment:agent-7:42",
                "role_ref": "role:maintainer@3",
                "duty_ref": "duty:bounded-change@2",
                "goal_refs": ["goal:reliable-delivery@5"],
                "resource_envelope_refs": ["resource-envelope:standard-coding@1"],
            }
        )

        assert set(refs) == set(EXECUTION_REF_KEYS)
        assert refs["goal_refs"] == ["goal:reliable-delivery@5"]

    def test_drops_unknown_keys(self) -> None:
        """We carry the contract's refs; we do not become a bag for anything."""
        refs = normalise_execution_refs(
            {"role_ref": "role:maintainer@3", "api_key": "sk-nope", "extra": {"a": 1}}
        )

        assert refs == {"role_ref": "role:maintainer@3"}

    def test_drops_empty_and_wrongly_typed_values(self) -> None:
        refs = normalise_execution_refs(
            {
                "correlation_id": "  ",
                "role_ref": 17,
                "goal_refs": "not-a-list",
                "resource_envelope_refs": ["ok", "", "  "],
            }
        )

        assert refs == {"resource_envelope_refs": ["ok"]}

    def test_drops_non_string_items_in_reference_lists(self) -> None:
        refs = normalise_execution_refs(
            {"goal_refs": ["goal:1@1", {"credential": "must-drop"}, 17]}
        )

        assert refs == {"goal_refs": ["goal:1@1"]}

    @pytest.mark.parametrize("bad", [None, "refs", ["a"], 5])
    def test_non_dict_becomes_empty(self, bad) -> None:
        assert normalise_execution_refs(bad) == {}


def test_ops_run_model_carries_the_new_columns() -> None:
    from activity_core.orm import OpsRun

    columns = OpsRun.__table__.columns
    assert "harness_profile_ref" in columns
    assert columns["harness_profile_ref"].nullable is True
    assert "execution_refs" in columns
    assert columns["execution_refs"].nullable is False


def test_queue_projection_exposes_selection_fields() -> None:
    """Executors claim from this projection; the profile must reach them."""
    import inspect

    from activity_core import ops_run_queue

    source = inspect.getsource(ops_run_queue)
    assert '"harness_profile_ref": row.harness_profile_ref' in source
    assert '"execution_refs"' in source