"""
Tests for /v1/alerts/dashboard and /v1/incidents/open endpoints.
Uses MemoryAlertStore + MemoryIncidentStore injected directly.
"""
import os
import sys
from datetime import datetime
from pathlib import Path
from unittest.mock import patch, MagicMock

ROOT = Path(__file__).resolve().parent.parent
ROUTER = ROOT / "services" / "router"
if str(ROUTER) not in sys.path:
    sys.path.insert(0, str(ROUTER))


def _ingest_n(store, n=3):
    from alert_ingest import ingest_alert
    refs = []
    for i in range(n):
        r = ingest_alert(store, {
            "source": "monitor@node1",
            "service": "gateway",
            "env": "prod",
            "severity": "P1",
            "kind": "slo_breach",
            "title": f"Alert {i}",
            "summary": f"Issue {i}",
            "started_at": datetime.utcnow().isoformat(),
            "labels": {"fingerprint": f"fp{i}"},
            "metrics": {},
        })
        refs.append(r["alert_ref"])
    return refs


class TestDashboardCountsAndSigs:
    def setup_method(self):
        from alert_store import MemoryAlertStore, set_alert_store
        self.store = MemoryAlertStore()
        set_alert_store(self.store)

    def teardown_method(self):
        from alert_store import set_alert_store
        set_alert_store(None)

    def test_counts_reflect_state(self):
        refs = _ingest_n(self.store, 3)
        self.store.claim_next_alerts(limit=1, owner="loop")
        self.store.mark_acked(refs[2], "test")

        counts = self.store.dashboard_counts()
        assert counts["new"] >= 1
        assert counts["processing"] >= 1
        assert counts["acked"] >= 1
        assert counts["failed"] == 0

    def test_top_signatures_sorted_by_occurrences(self):
        from alert_ingest import ingest_alert
        # Ingest same fingerprint 5 times → occurrences should be 5
        for _ in range(5):
            ingest_alert(self.store, {
                "source": "test",
                "service": "gateway",
                "env": "prod",
                "severity": "P1",
                "kind": "slo_breach",
                "title": "High latency",
                "summary": "latency spike",
                "started_at": datetime.utcnow().isoformat(),
                "labels": {"fingerprint": "repeated_fp"},
                "metrics": {},
            })

        top = self.store.top_signatures()
        assert len(top) >= 1
        assert top[0]["occurrences"] >= 5
        assert top[0]["service"] == "gateway"

    def test_latest_alerts_in_result(self):
        refs = _ingest_n(self.store, 3)
        latest = self.store.list_alerts({"window_minutes": 60}, limit=50)
        assert len(latest) >= 3

    def test_counts_all_zeros_empty_store(self):
        from alert_store import MemoryAlertStore, set_alert_store
        empty_store = MemoryAlertStore()
        set_alert_store(empty_store)
        counts = empty_store.dashboard_counts()
        assert all(v == 0 for v in counts.values())


class TestIncidentsOpenEndpoint:
    """Test /v1/incidents/open logic directly (no HTTP)."""

    def setup_method(self):
        from incident_store import MemoryIncidentStore, set_incident_store
        self.istore = MemoryIncidentStore()
        set_incident_store(self.istore)

    def teardown_method(self):
        from incident_store import set_incident_store
        set_incident_store(None)

    def _create_incident(self, service="gateway", status="open", severity="P1"):
        return self.istore.create_incident({
            "service": service,
            "env": "prod",
            "severity": severity,
            "title": f"{service} incident",
            "summary": "test",
            "started_at": datetime.utcnow().isoformat(),
            "created_by": "test",
        })

    def test_list_open_incidents(self):
        inc1 = self._create_incident("gateway")
        inc2 = self._create_incident("router")
        self.istore.close_incident(inc2["id"], datetime.utcnow().isoformat(), "resolved")

        all_incs = self.istore.list_incidents({}, limit=100)
        open_only = [i for i in all_incs if i.get("status") in ("open", "mitigating")]
        assert len(open_only) >= 1
        assert all(i["status"] in ("open", "mitigating") for i in open_only)

    def test_filter_by_service(self):
        self._create_incident("gateway")
        self._create_incident("router")
        all_incs = self.istore.list_incidents({}, limit=100)
        gw_only = [i for i in all_incs if i["service"] == "gateway"]
        assert len(gw_only) >= 1
        for i in gw_only:
            assert i["service"] == "gateway"


class TestSignatureStateDashboardIntegration:
    """Verify signature state store integrates with claims."""

    def setup_method(self):
        from signature_state_store import MemorySignatureStateStore, set_signature_state_store
        self.sig_store = MemorySignatureStateStore()
        set_signature_state_store(self.sig_store)

    def teardown_method(self):
        from signature_state_store import set_signature_state_store
        set_signature_state_store(None)

    def test_mark_and_check(self):
        sig = "aabbccdd" * 4
        assert self.sig_store.should_run_triage(sig) is True
        self.sig_store.mark_triage_run(sig)
        assert self.sig_store.should_run_triage(sig, cooldown_minutes=15) is False

    def test_state_has_expected_fields(self):
        sig = "sig12345"
        self.sig_store.mark_alert_seen(sig)
        self.sig_store.mark_triage_run(sig)
        state = self.sig_store.get_state(sig)
        assert "last_triage_at" in state
        assert "last_alert_at" in state
        assert "triage_count_24h" in state