from pathlib import Path

import pytest

from glas_harness.profiles import (
    AmbiguousProfileError,
    IncompatibleProfileError,
    ProfileCatalog,
    ProfileError,
    UnknownProfileError,
)
from glas_harness.reins.rein_aharness import ReinAharness
from glas_harness.reins.rein_openweights import ReinOpenWeights


def _write(path: Path, name: str, text: str) -> None:
    (path / name).write_text(text)


def _profile(
    *,
    profile_id: str = "harness.test",
    version: str = "1.0.0",
    contract: str = "1.0",
    rein: str = "rein-test",
    required: str = "session_style: unattended",
    extra: str = "",
) -> str:
    return f"""\
id: {profile_id}
version: \"{version}\"
contract_version: \"{contract}\"
status: enabled
rein:
  id: {rein}
  required_capabilities:
    {required}
sandbox_profile: profile.test
tool_profile: green-commit-only
model:
  provider: test
  model: model-1
  model_class: other
  route: test-route
limits:
  budget_tokens: 100
{extra}
"""


def _rein(*, rein_id: str = "rein-test", capability: str = "unattended") -> str:
    return f"""\
id: {rein_id}
version: \"1.0.0\"
title: Test rein
handler: glas_harness.reins.rein_aharness:ReinAharness
contract_versions: [\"1.0\"]
capabilities:
  session_style: {capability}
status: implemented
"""


def test_committed_catalog_resolves_both_constellations() -> None:
    catalog = ProfileCatalog()

    contexts = catalog.validate_all()

    assert len(contexts) == 3
    assert {context.rein_id for context in contexts} == {
        "rein-aharness",
        "rein-openweights",
    }
    assert {
        (context.profile.id, context.operational_readiness.status)
        for context in contexts
    } == {
        ("harness.agent-dev-local", "blocked"),
        ("harness.agent-dev-openweights-local", "blocked"),
        ("harness.agent-dev", "unverified"),
    }
    profile, descriptor = catalog.resolve(
        "harness.agent-dev-openweights-local@1.0.0"
    )
    rein = catalog.build_rein(profile, descriptor)
    assert isinstance(rein, ReinOpenWeights)
    assert rein.model == "qwen/qwen-2.5-72b-instruct"
    assert rein.tool_profile == "green-commit-only"
    assert rein.max_turns == 20
    assert rein.budget_tokens == 60000

    profile, descriptor = catalog.resolve("harness.agent-dev-local@1.0.0")
    rein = catalog.build_rein(profile, descriptor)
    assert isinstance(rein, ReinAharness)
    assert rein.model == "claude-sonnet-4-6"
    assert rein.tool_profile == "green-commit-only"
    assert rein.budget_tokens == 60000


def test_ready_profile_requires_an_evidence_reference(tmp_path) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(
        profiles,
        "profile.yaml",
        _profile(
            extra="""operational_readiness:
  status: ready
  reason: proof completed
  owner: tests
"""
        ),
    )
    _write(reins, "rein.yaml", _rein())

    with pytest.raises(ProfileError, match="ready operational status requires evidence_ref"):
        ProfileCatalog(profiles, reins).profiles()


def test_undeclared_readiness_defaults_to_unverified(tmp_path) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(profiles, "profile.yaml", _profile())
    _write(reins, "rein.yaml", _rein())

    context = ProfileCatalog(profiles, reins).resolve_context("harness.test@1.0.0")

    assert context.operational_readiness.status == "unverified"
    assert context.operational_readiness.reason == "no operational proof declared"

def test_unknown_profile_fails_closed() -> None:
    with pytest.raises(UnknownProfileError, match="unknown harness profile"):
        ProfileCatalog().resolve("harness.missing@1.0.0")


def test_unpinned_multi_version_profile_is_ambiguous(tmp_path) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(profiles, "one.yaml", _profile(version="1.0.0"))
    _write(profiles, "two.yaml", _profile(version="2.0.0"))
    _write(reins, "rein.yaml", _rein())

    with pytest.raises(AmbiguousProfileError, match="pin one of"):
        ProfileCatalog(profiles, reins).resolve("harness.test")


@pytest.mark.parametrize(
    ("profile_text", "match"),
    [
        (_profile(version="not-semver"), "semantic versioning"),
        (_profile(extra="unexpected: true"), "extra_forbidden"),
        (_profile(extra="api_key: sk-this-is-inline-and-forbidden"), "inline secret"),
    ],
)
def test_malformed_or_sensitive_profiles_are_rejected(
    tmp_path, profile_text: str, match: str
) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(profiles, "profile.yaml", profile_text)
    _write(reins, "rein.yaml", _rein())

    with pytest.raises(ProfileError, match=match):
        ProfileCatalog(profiles, reins).profiles()


def test_duplicate_profile_revision_is_rejected(tmp_path) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(profiles, "one.yaml", _profile())
    _write(profiles, "two.yaml", _profile())
    _write(reins, "rein.yaml", _rein())

    with pytest.raises(ProfileError, match="duplicate harness profile"):
        ProfileCatalog(profiles, reins).profiles()


@pytest.mark.parametrize(
    ("profile_text", "rein_text", "match"),
    [
        (_profile(contract="2.0"), _rein(), "requires contract 2.0"),
        (_profile(rein="rein-missing"), _rein(), "unknown rein"),
        (_profile(required="session_style: interactive"), _rein(), "capability"),
    ],
)
def test_incompatible_profile_or_rein_is_rejected(
    tmp_path, profile_text: str, rein_text: str, match: str
) -> None:
    profiles = tmp_path / "profiles"
    reins = tmp_path / "reins"
    profiles.mkdir()
    reins.mkdir()
    _write(profiles, "profile.yaml", profile_text)
    _write(reins, "rein.yaml", rein_text)

    with pytest.raises(IncompatibleProfileError, match=match):
        ProfileCatalog(profiles, reins).resolve("harness.test@1.0.0")