import subprocess

from clfgui.kernel import FakeAgentBackend, HermesAgentBackend, Job, Phase


def make_job() -> Job:
    return Job(
        id=7,
        intent="Build a small owner cockpit",
        status="running",
        created_at="2026-05-05T00:00:00Z",
        updated_at="2026-05-05T00:00:00Z",
    )


def make_phase(name: str = "research") -> Phase:
    return Phase(
        id=11,
        job_id=7,
        name=name,
        position=2,
        status="running",
        summary="Phase is running.",
        started_at=None,
        completed_at=None,
    )


def test_fake_agent_backend_returns_deterministic_phase_outcome():
    outcome = FakeAgentBackend().run_phase(make_job(), make_phase("research"), "context")

    assert outcome.status == "completed"
    assert outcome.summary == "Relevante Annahmen und offene Risiken wurden für V1 verdichtet."
    assert outcome.decision is None
    assert outcome.result is None


def test_hermes_backend_builds_command_and_maps_success(monkeypatch, tmp_path):
    captured = {}

    def fake_run(command, **kwargs):
        captured["command"] = command
        captured["kwargs"] = kwargs
        return subprocess.CompletedProcess(command, 0, stdout=" concise Hermes summary \n", stderr="")

    monkeypatch.setattr("clfgui.kernel.backends.subprocess.run", fake_run)

    backend = HermesAgentBackend(executable="/usr/bin/hermes", timeout_s=9, cwd=tmp_path)
    outcome = backend.run_phase(make_job(), make_phase("research"), "phase context")

    assert outcome.status == "completed"
    assert outcome.summary == "concise Hermes summary"
    assert captured["command"][0:3] == ["/usr/bin/hermes", "chat", "-q"]
    assert "-Q" in captured["command"]
    assert captured["command"][captured["command"].index("--source") + 1] == "clfgui"
    assert captured["command"][captured["command"].index("--max-turns") + 1] == "1"
    prompt = captured["command"][captured["command"].index("-q") + 1]
    assert "Do not edit files." in prompt
    assert "Do not run tools or commands that mutate files." in prompt
    assert "phase context" in prompt
    assert captured["kwargs"]["cwd"] == str(tmp_path)
    assert captured["kwargs"]["capture_output"] is True
    assert captured["kwargs"]["text"] is True
    assert captured["kwargs"]["timeout"] == 9
    assert captured["kwargs"]["check"] is False


def test_hermes_backend_maps_nonzero_exit_to_failed(monkeypatch):
    def fake_run(command, **kwargs):
        return subprocess.CompletedProcess(command, 2, stdout="stdout details", stderr="stderr details")

    monkeypatch.setattr("clfgui.kernel.backends.subprocess.run", fake_run)

    outcome = HermesAgentBackend().run_phase(make_job(), make_phase("verify"), "context")

    assert outcome.status == "failed"
    assert "exit 2" in outcome.summary
    assert "stderr details" in outcome.summary


def test_hermes_backend_maps_timeout_to_failed(monkeypatch):
    def fake_run(command, **kwargs):
        raise subprocess.TimeoutExpired(cmd=command, timeout=3)

    monkeypatch.setattr("clfgui.kernel.backends.subprocess.run", fake_run)

    outcome = HermesAgentBackend(timeout_s=3).run_phase(make_job(), make_phase("test"), "context")

    assert outcome.status == "failed"
    assert outcome.summary == "Hermes phase timed out after 3 seconds."