"""Phase 2 — Priority 1 core bug fixes (Bugs A–D)."""
import os
import sys

os.environ.setdefault("CEPHEUS_CLOUD", "1")
BACKEND_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if BACKEND_DIR not in sys.path:
    sys.path.insert(0, BACKEND_DIR)

import agentic_orchestrator as orch  # noqa: E402
import gemini_config as gc  # noqa: E402


class _EmptyVE:
    camera_indices = {}
    browser_feeds = {}
    face_results = {}

    def get_ai_status(self):
        return {"facial": True}


def test_bug_a_empty_feeds_report_zero_cameras():
    """Bug A: tool returns empty → agent report says zero cameras."""
    orch.inject_context(
        alerts=[], sos_events=[], vision_engine=_EmptyVE(), rooms=[],
        detections_history=[], issues=[],
    )
    feeds = orch.get_active_camera_feeds()
    assert feeds["count"] == 0
    assert feeds["cameras"] == []
    report = orch.report_active_cameras_from_tool()
    assert report["count"] == 0
    assert "0 active camera" in report["report"].lower()
    assert report["source_tool"] == "get_active_camera_feeds"


def test_bug_a_report_matches_feed_count_with_one_camera():
    class _OneCamVE(_EmptyVE):
        browser_feeds = {"cam-01": {"status": "ACTIVE", "last_seen": "now", "source": "browser"}}

    orch.inject_context(
        alerts=[], sos_events=[], vision_engine=_OneCamVE(), rooms=[],
        detections_history=[], issues=[],
    )
    report = orch.report_active_cameras_from_tool()
    assert report["count"] == 1
    assert "cam-01" in report["report"]


def test_bug_b_location_agent_excludes_known_persons():
    """Bug B: LocationAgent must not use get_known_persons for live presence."""
    names = orch.location_agent_tool_names()
    assert "get_known_persons" not in names
    assert "who_is_on_camera_now" in names
    assert "get_live_camera_faces" in names
    assert not orch.agents_must_not_use_known_persons_for_live()


def test_bug_b_who_is_on_camera_ignores_history():
    class _VE:
        face_results = {"cam-01": [{"name": "MK", "confidence": 0.9}]}
        browser_feeds = {"cam-01": {}}
        camera_indices = {}

        def get_ai_status(self):
            return {"facial": True}

    orch.inject_context(
        alerts=[], sos_events=[], vision_engine=_VE(), rooms=[],
        detections_history=[{"name": "Urvi", "camId": "cam-02"}], issues=[],
    )
    live = orch.who_is_on_camera_now()
    assert live["count"] == 1
    assert live["persons"][0]["name"] == "MK"
    assert all(p["name"] != "Urvi" for p in live["persons"])


def test_bug_c_normalize_stream_step_drops_empty():
    assert orch._normalize_stream_step({"agent": "OrchestratorAgent", "content": "  ", "step_type": "thinking"}) is None
    step = orch._normalize_stream_step({"agent": "OrchestratorAgent", "content": "OK", "step_type": "response"})
    assert step is not None
    assert step["content"] == "OK"


def test_bug_d_rate_limit_only_when_chain_exhausted():
    exc = Exception("429 RESOURCE_EXHAUSTED quota")
    exhausted = orch._friendly_model_error(exc, chain_exhausted=True)
    partial = orch._friendly_model_error(exc, chain_exhausted=False)
    assert "rate-limited" in exhausted.lower()
    assert "rate-limited" not in partial.lower() or "temporary overload" in partial.lower()


def test_bug_d_valid_key_no_false_quota_on_non_rate_error():
    os.environ["GEMINI_API_KEY"] = "test-key-present"
    msg = orch._friendly_model_error(Exception("network timeout"), chain_exhausted=True)
    assert "rate-limited" not in msg.lower()
    assert gc.api_key_configured() is True


def test_bug_d_fallback_success_implies_no_error_message():
    """Valid key + successful fallback → no rate-limit user message path."""
    calls = []

    class _RateLimitError(Exception):
        pass

    class _FakeModels:
        def generate_content(self, model, contents, config):
            calls.append(model)
            if model != "gemini-3.1-flash-lite":
                raise _RateLimitError("429 RESOURCE_EXHAUSTED")
            return "ok"

    class _FakeClient:
        models = _FakeModels()

    result = gc.generate_with_fallback(_FakeClient(), tier="pro", contents="hi", config=None)
    assert result == "ok"
    assert calls[-1] == "gemini-3.1-flash-lite"