from __future__ import annotations

from types import SimpleNamespace

from ariadne.k8s import client as k8s_client
from ariadne.services import hermes_autotriage_repair as module


INCIDENT_ID = "hermes-triage-demo/12"
CONFIGMAP_PATH = "/api/v1/namespaces/hermes-triage-demo/configmaps/hermes-triage-demo-fixture"
TARGET = "hermes-triage-demo/hermes-triage-demo-fixture"


class FakeResponse:
    def __init__(self, status_code: int) -> None:
        self.status_code = status_code


def _cfg(**overrides) -> dict:  # type: ignore[no-untyped-def]
    base = {
        "namespace": "hermes-triage-demo",
        "fixture_configmap": "hermes-triage-demo-fixture",
    }
    base.update(overrides)
    return base


def _jenkins_settings(**overrides) -> SimpleNamespace:  # type: ignore[no-untyped-def]
    values = {
        "jenkins_base_url": "https://ci.example",
        "jenkins_api_user": "user",
        "jenkins_api_token": "token",
        "jenkins_api_timeout_sec": 5.0,
    }
    values.update(overrides)
    return SimpleNamespace(**values)


def _install_k8s(monkeypatch, patch_exc=None) -> dict:  # type: ignore[no-untyped-def]
    """Record every Kubernetes call the repair path makes."""

    calls: dict = {"patches": [], "posts": [], "gets": []}

    def fake_patch(path, payload):  # type: ignore[no-untyped-def]
        calls["patches"].append((path, payload))
        if patch_exc is not None:
            raise patch_exc
        return {"metadata": {"name": "hermes-triage-demo-fixture"}}

    def fake_post(path, payload):  # type: ignore[no-untyped-def]
        calls["posts"].append((path, payload))
        return {}

    def fake_get(path):  # type: ignore[no-untyped-def]
        calls["gets"].append(path)
        return {}

    monkeypatch.setattr(module, "patch_json", fake_patch)
    monkeypatch.setattr(k8s_client, "post_json", fake_post)
    monkeypatch.setattr(k8s_client, "get_json", fake_get)
    return calls


def _http_error(status_code: int) -> Exception:
    error = RuntimeError(f"http {status_code}")
    error.response = SimpleNamespace(status_code=status_code)  # type: ignore[attr-defined]
    return error


def test_execute_repair_patches_the_fixture_configmap(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch)
    result = module.execute_repair(_cfg(), INCIDENT_ID, 12)

    assert result == {
        "action": "configmap_patch",
        "target": TARGET,
        "succeeded": True,
        "error": None,
    }
    assert calls["patches"] == [(CONFIGMAP_PATH, {"data": {"state": "healthy"}})]


def test_execute_repair_creates_no_kubernetes_job(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch)
    module.execute_repair(_cfg(), INCIDENT_ID, 12)

    assert calls["posts"] == []
    assert calls["gets"] == []
    assert not any("/jobs" in path for path, _ in calls["patches"])
    assert not hasattr(module, "_job_payload")
    assert not hasattr(module, "_wait_for_completion")


def test_execute_repair_reports_non_2xx_status(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch, patch_exc=_http_error(403))
    result = module.execute_repair(_cfg(), INCIDENT_ID, 12)

    assert result["action"] == "configmap_patch"
    assert result["target"] == TARGET
    assert result["succeeded"] is False
    assert result["error"] == "configmap patch http 403"
    assert len(calls["patches"]) == 1


def test_execute_repair_survives_a_transport_error(monkeypatch) -> None:
    _install_k8s(monkeypatch, patch_exc=RuntimeError("connection reset by peer"))
    result = module.execute_repair(_cfg(), INCIDENT_ID, 12)

    assert result["succeeded"] is False
    assert result["error"] == "configmap patch failed: connection reset by peer"


def test_execute_repair_without_namespace_issues_no_request(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch)
    result = module.execute_repair(_cfg(namespace=""), INCIDENT_ID, 12)

    assert result["succeeded"] is False
    assert result["error"] == "fixture target incomplete"
    assert calls["patches"] == []


def test_execute_repair_without_configmap_name_issues_no_request(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch)
    result = module.execute_repair(_cfg(fixture_configmap=None), INCIDENT_ID, 12)

    assert result["succeeded"] is False
    assert result["error"] == "fixture target incomplete"
    assert calls["patches"] == []


def test_execute_repair_is_idempotent_across_repeats(monkeypatch) -> None:
    calls = _install_k8s(monkeypatch)
    first = module.execute_repair(_cfg(), INCIDENT_ID, 12)
    second = module.execute_repair(_cfg(), INCIDENT_ID, 12)

    assert first == second
    assert calls["patches"] == [
        (CONFIGMAP_PATH, {"data": {"state": "healthy"}}),
        (CONFIGMAP_PATH, {"data": {"state": "healthy"}}),
    ]


def _install_http(monkeypatch, response=None, exc=None) -> dict:  # type: ignore[no-untyped-def]
    calls: dict = {"posts": [], "kwargs": None}

    class FakeClient:
        def __init__(self, **kwargs) -> None:  # type: ignore[no-untyped-def]
            calls["kwargs"] = kwargs

        def __enter__(self):  # type: ignore[no-untyped-def]
            return self

        def __exit__(self, *args) -> None:  # type: ignore[no-untyped-def]
            return None

        def post(self, url, data=None):  # type: ignore[no-untyped-def]
            calls["posts"].append((url, data))
            if exc is not None:
                raise exc
            return response

    monkeypatch.setattr(module.httpx, "Client", FakeClient)
    return calls


def test_trigger_rebuild_success(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    result = module.trigger_rebuild(_jenkins_settings(), "hermes-triage-demo")
    assert result == {"requested": True, "error": None}
    url, data = calls["posts"][0]
    assert url == "https://ci.example/job/hermes-triage-demo/buildWithParameters"
    assert data == {"SEED_FAILURE": "false"}
    assert calls["kwargs"]["auth"] == ("user", "token")
    assert calls["kwargs"]["timeout"] == 5.0


def test_trigger_rebuild_non_created_status(monkeypatch) -> None:
    _install_http(monkeypatch, response=FakeResponse(500))
    result = module.trigger_rebuild(_jenkins_settings(), "hermes-triage-demo")
    assert result == {"requested": False, "error": "rebuild http 500"}


def test_trigger_rebuild_request_failure(monkeypatch) -> None:
    _install_http(monkeypatch, exc=RuntimeError("connect refused"))
    result = module.trigger_rebuild(_jenkins_settings(), "hermes-triage-demo")
    assert result["requested"] is False
    assert result["error"] == "rebuild request failed: connect refused"


def test_trigger_rebuild_without_base_url(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    result = module.trigger_rebuild(_jenkins_settings(jenkins_base_url=""), "hermes-triage-demo")
    assert result == {"requested": False, "error": "jenkins base url is empty"}
    assert calls["posts"] == []


def test_trigger_rebuild_without_credentials(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    config = _jenkins_settings(jenkins_api_user="", jenkins_api_token="")
    result = module.trigger_rebuild(config, "hermes-triage-demo")
    assert result["requested"] is True
    assert "auth" not in calls["kwargs"]


def test_retry_build_parameterized_reuses_the_rebuild_form(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    result = module.retry_build(_jenkins_settings(), "hermes-triage-demo", parameterized=True)

    assert result == {"requested": True, "error": None}
    url, data = calls["posts"][0]
    assert url == "https://ci.example/job/hermes-triage-demo/buildWithParameters"
    assert data == {"SEED_FAILURE": "false"}
    assert calls["kwargs"]["auth"] == ("user", "token")


def test_retry_build_unparameterized_posts_no_parameters(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    result = module.retry_build(_jenkins_settings(), "titan-iac", parameterized=False)

    assert result == {"requested": True, "error": None}
    url, data = calls["posts"][0]
    assert url == "https://ci.example/job/titan-iac/build"
    assert data is None


def test_retry_build_non_created_status(monkeypatch) -> None:
    _install_http(monkeypatch, response=FakeResponse(500))
    result = module.retry_build(_jenkins_settings(), "titan-iac", parameterized=False)
    assert result == {"requested": False, "error": "retry http 500"}


def test_retry_build_request_failure(monkeypatch) -> None:
    _install_http(monkeypatch, exc=RuntimeError("connection reset by peer"))
    result = module.retry_build(_jenkins_settings(), "titan-iac", parameterized=False)
    assert result == {"requested": False, "error": "retry request failed: connection reset by peer"}


def test_retry_build_without_base_url(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    result = module.retry_build(_jenkins_settings(jenkins_base_url=""), "titan-iac", parameterized=True)
    assert result == {"requested": False, "error": "jenkins base url is empty"}
    assert calls["posts"] == []


def test_retry_build_without_credentials(monkeypatch) -> None:
    calls = _install_http(monkeypatch, response=FakeResponse(201))
    config = _jenkins_settings(jenkins_api_user="", jenkins_api_token="")
    result = module.retry_build(config, "titan-iac", parameterized=False)
    assert result["requested"] is True
    assert "auth" not in calls["kwargs"]