# -*- coding: utf-8 -*-
"""
Tests für Satellite Capability System.
"""

import asyncio
import pytest
from datetime import datetime

from trixy_core.satellite.capability import (
    CapabilityDiscovery,
    DiscoveryConfig,
    CapabilityProbe,
    CapabilityRegistry,
    Capability,
    CapabilityInfo,
    CapabilityState,
)
from trixy_core.satellite.capability.discovery import SimpleProbe, ProbeResult


class TestCapabilityInfo:
    """Tests für CapabilityInfo."""

    def test_info_creation(self):
        """Testet Info-Erstellung."""
        info = CapabilityInfo(
            id="audio.input",
            name="Mikrofon",
            description="Audio-Eingang",
            category="audio",
        )
        assert info.id == "audio.input"
        assert info.name == "Mikrofon"
        assert info.category == "audio"

    def test_info_defaults(self):
        """Testet Standard-Werte."""
        info = CapabilityInfo(id="test", name="Test")
        assert info.description == ""
        assert info.category == ""
        assert info.required_features == []


class TestCapability:
    """Tests für Capability."""

    @pytest.fixture
    def cap_info(self):
        """Erstellt CapabilityInfo."""
        return CapabilityInfo(
            id="audio.input",
            name="Mikrofon",
            category="audio",
        )

    def test_capability_creation(self, cap_info):
        """Testet Capability-Erstellung."""
        cap = Capability(
            info=cap_info,
            state=CapabilityState.AVAILABLE,
        )
        assert cap.id == "audio.input"
        assert cap.state == CapabilityState.AVAILABLE
        assert cap.is_available

    def test_capability_states(self, cap_info):
        """Testet Capability-Zustände."""
        cap = Capability(info=cap_info)

        cap.state = CapabilityState.UNKNOWN
        assert not cap.is_available
        assert not cap.is_degraded

        cap.state = CapabilityState.AVAILABLE
        assert cap.is_available

        cap.state = CapabilityState.DEGRADED
        assert cap.is_degraded

    def test_update_state(self, cap_info):
        """Testet State-Update."""
        cap = Capability(info=cap_info)

        cap.update_state(CapabilityState.UNAVAILABLE, "Gerät nicht gefunden")

        assert cap.state == CapabilityState.UNAVAILABLE
        assert cap.error_message == "Gerät nicht gefunden"
        assert cap.last_checked is not None

    def test_to_dict(self, cap_info):
        """Testet Dictionary-Konvertierung."""
        cap = Capability(
            info=cap_info,
            state=CapabilityState.AVAILABLE,
            satellite_id="sat-001",
        )

        d = cap.to_dict()
        assert d["id"] == "audio.input"
        assert d["state"] == "AVAILABLE"
        assert d["satellite_id"] == "sat-001"


class TestCapabilityRegistry:
    """Tests für CapabilityRegistry."""

    @pytest.fixture
    def registry(self):
        """Erstellt Registry."""
        return CapabilityRegistry()

    @pytest.fixture
    def audio_info(self):
        """Erstellt Audio-CapabilityInfo."""
        return CapabilityInfo(
            id="audio.input",
            name="Mikrofon",
            category="audio",
        )

    def test_define_capability(self, registry, audio_info):
        """Testet Capability-Definition."""
        registry.define_capability(audio_info)

        assert registry.capability_count == 1
        assert registry.get_definition("audio.input") == audio_info

    def test_register_capability(self, registry, audio_info):
        """Testet Capability-Registrierung."""
        cap = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        registry.register("sat-001", cap)

        assert registry.satellite_count == 1
        assert registry.has_capability("sat-001", "audio.input")

    def test_unregister_capability(self, registry, audio_info):
        """Testet Capability-Entfernung."""
        cap = Capability(info=audio_info)
        registry.register("sat-001", cap)

        assert registry.unregister("sat-001", "audio.input")
        assert not registry.has_capability("sat-001", "audio.input")

    def test_unregister_all_satellite(self, registry, audio_info):
        """Testet Entfernung aller Capabilities eines Satellites."""
        cap = Capability(info=audio_info)
        registry.register("sat-001", cap)

        assert registry.unregister("sat-001")
        assert "sat-001" not in registry

    def test_update_state(self, registry, audio_info):
        """Testet State-Update über Registry."""
        cap = Capability(info=audio_info)
        registry.register("sat-001", cap)

        assert registry.update_state(
            "sat-001",
            "audio.input",
            CapabilityState.UNAVAILABLE,
            "Fehler",
        )

        updated = registry.get("sat-001", "audio.input")
        assert updated.state == CapabilityState.UNAVAILABLE

    def test_get_capability(self, registry, audio_info):
        """Testet Capability-Abruf."""
        cap = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        registry.register("sat-001", cap)

        result = registry.get("sat-001", "audio.input")
        assert result == cap

    def test_get_all_capabilities(self, registry, audio_info):
        """Testet Abruf aller Capabilities."""
        cap1 = Capability(
            info=audio_info,
            state=CapabilityState.AVAILABLE,
        )
        cap2 = Capability(
            info=CapabilityInfo("display.screen", "Bildschirm"),
            state=CapabilityState.AVAILABLE,
        )

        registry.register("sat-001", cap1)
        registry.register("sat-001", cap2)

        caps = registry.get_all("sat-001")
        assert len(caps) == 2

    def test_get_available_capabilities(self, registry, audio_info):
        """Testet Abruf verfügbarer Capabilities."""
        cap1 = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        cap2 = Capability(
            info=CapabilityInfo("display.screen", "Bildschirm"),
            state=CapabilityState.UNAVAILABLE,
        )

        registry.register("sat-001", cap1)
        registry.register("sat-001", cap2)

        available = registry.get_available("sat-001")
        assert len(available) == 1
        assert available[0].id == "audio.input"

    def test_has_capability(self, registry, audio_info):
        """Testet Capability-Prüfung."""
        cap = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        registry.register("sat-001", cap)

        assert registry.has_capability("sat-001", "audio.input")
        assert not registry.has_capability("sat-001", "unknown")
        assert not registry.has_capability("unknown", "audio.input")

    def test_has_capability_require_available(self, registry, audio_info):
        """Testet Capability-Prüfung mit Verfügbarkeit."""
        cap = Capability(info=audio_info, state=CapabilityState.UNAVAILABLE)
        registry.register("sat-001", cap)

        # Mit require_available=True
        assert not registry.has_capability("sat-001", "audio.input", True)

        # Mit require_available=False
        assert registry.has_capability("sat-001", "audio.input", False)

    def test_has_all_capabilities(self, registry):
        """Testet Prüfung mehrerer Capabilities."""
        cap1 = Capability(
            info=CapabilityInfo("cap1", "Cap 1"),
            state=CapabilityState.AVAILABLE,
        )
        cap2 = Capability(
            info=CapabilityInfo("cap2", "Cap 2"),
            state=CapabilityState.AVAILABLE,
        )

        registry.register("sat-001", cap1)
        registry.register("sat-001", cap2)

        assert registry.has_all_capabilities("sat-001", ["cap1", "cap2"])
        assert not registry.has_all_capabilities("sat-001", ["cap1", "cap3"])

    def test_has_any_capability(self, registry):
        """Testet Prüfung auf mindestens eine Capability."""
        cap = Capability(
            info=CapabilityInfo("cap1", "Cap 1"),
            state=CapabilityState.AVAILABLE,
        )
        registry.register("sat-001", cap)

        assert registry.has_any_capability("sat-001", ["cap1", "cap2"])
        assert not registry.has_any_capability("sat-001", ["cap3", "cap4"])

    def test_find_satellites_with(self, registry, audio_info):
        """Testet Satellite-Suche nach Capability."""
        cap = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        registry.register("sat-001", cap)
        registry.register("sat-002", cap)

        satellites = registry.find_satellites_with("audio.input")
        assert len(satellites) == 2
        assert "sat-001" in satellites
        assert "sat-002" in satellites

    def test_find_satellites_with_all(self, registry):
        """Testet Satellite-Suche nach mehreren Capabilities."""
        cap1 = Capability(
            info=CapabilityInfo("cap1", "Cap 1"),
            state=CapabilityState.AVAILABLE,
        )
        cap2 = Capability(
            info=CapabilityInfo("cap2", "Cap 2"),
            state=CapabilityState.AVAILABLE,
        )

        registry.register("sat-001", cap1)
        registry.register("sat-001", cap2)
        registry.register("sat-002", cap1)  # Nur cap1

        satellites = registry.find_satellites_with_all(["cap1", "cap2"])
        assert satellites == ["sat-001"]

    def test_get_by_category(self, registry):
        """Testet Abruf nach Kategorie."""
        cap1 = Capability(
            info=CapabilityInfo("audio.in", "In", category="audio"),
        )
        cap2 = Capability(
            info=CapabilityInfo("audio.out", "Out", category="audio"),
        )
        cap3 = Capability(
            info=CapabilityInfo("display", "Display", category="display"),
        )

        registry.register("sat-001", cap1)
        registry.register("sat-001", cap2)
        registry.register("sat-001", cap3)

        audio_caps = registry.get_by_category("sat-001", "audio")
        assert len(audio_caps) == 2

    def test_on_change_callback(self, registry, audio_info):
        """Testet Änderungs-Callback."""
        changes = []

        def on_change(sat_id, cap):
            changes.append((sat_id, cap.id))

        registry.on_change(on_change)

        cap = Capability(info=audio_info)
        registry.register("sat-001", cap)

        assert ("sat-001", "audio.input") in changes

    def test_get_summary(self, registry, audio_info):
        """Testet Zusammenfassung."""
        cap = Capability(info=audio_info, state=CapabilityState.AVAILABLE)
        registry.register("sat-001", cap)

        summary = registry.get_summary()
        assert summary["satellite_count"] == 1
        assert summary["total_capabilities"] == 1
        assert summary["available_capabilities"] == 1


class TestDiscoveryConfig:
    """Tests für DiscoveryConfig."""

    def test_default_config(self):
        """Testet Standard-Konfiguration."""
        config = DiscoveryConfig()
        assert config.probe_timeout == 10.0
        assert config.probe_concurrency == 5
        assert config.auto_discover is True


class TestProbeResult:
    """Tests für ProbeResult."""

    def test_result_creation(self):
        """Testet Result-Erstellung."""
        result = ProbeResult(
            capability_id="audio.input",
            success=True,
            state=CapabilityState.AVAILABLE,
        )
        assert result.capability_id == "audio.input"
        assert result.success
        assert result.state == CapabilityState.AVAILABLE


class TestCapabilityDiscovery:
    """Tests für CapabilityDiscovery."""

    @pytest.fixture
    def registry(self):
        """Erstellt Registry."""
        return CapabilityRegistry()

    @pytest.fixture
    def send_func(self):
        """Erstellt Mock-Send-Funktion."""
        responses = {}

        async def send(sat_id, message):
            return responses.get(sat_id, {"available": False})

        send.responses = responses
        return send

    @pytest.fixture
    def discovery(self, registry, send_func):
        """Erstellt Discovery-Instanz."""
        config = DiscoveryConfig(
            probe_timeout=1.0,
            probe_concurrency=2,
        )
        return CapabilityDiscovery(
            registry=registry,
            send_func=send_func,
            config=config,
        )

    def test_register_probe(self, discovery):
        """Testet Probe-Registrierung."""
        info = CapabilityInfo("test", "Test")
        probe = SimpleProbe(info)

        discovery.register_probe(probe)

        assert discovery.probe_count == 1
        assert discovery.registry.get_definition("test") is not None

    def test_unregister_probe(self, discovery):
        """Testet Probe-Entfernung."""
        info = CapabilityInfo("test", "Test")
        probe = SimpleProbe(info)

        discovery.register_probe(probe)
        assert discovery.unregister_probe("test")
        assert discovery.probe_count == 0

    @pytest.mark.asyncio
    async def test_discover_capability(self, discovery, send_func):
        """Testet einzelne Capability-Discovery."""
        info = CapabilityInfo("audio.input", "Mikrofon")
        probe = SimpleProbe(info)
        discovery.register_probe(probe)

        send_func.responses["sat-001"] = {
            "available": True,
            "parameters": {"channels": 2},
        }

        result = await discovery.discover_capability("sat-001", "audio.input")

        assert result is not None
        assert result.success
        assert result.state == CapabilityState.AVAILABLE

    @pytest.mark.asyncio
    async def test_discover_satellite(self, discovery, send_func):
        """Testet vollständige Satellite-Discovery."""
        info1 = CapabilityInfo("cap1", "Cap 1")
        info2 = CapabilityInfo("cap2", "Cap 2")

        discovery.register_probe(SimpleProbe(info1))
        discovery.register_probe(SimpleProbe(info2))

        send_func.responses["sat-001"] = {"available": True}

        results = await discovery.discover_satellite("sat-001")

        assert len(results) == 2
        assert all(r.success for r in results)

    @pytest.mark.asyncio
    async def test_discover_specific_capabilities(self, discovery, send_func):
        """Testet Discovery spezifischer Capabilities."""
        info1 = CapabilityInfo("cap1", "Cap 1")
        info2 = CapabilityInfo("cap2", "Cap 2")

        discovery.register_probe(SimpleProbe(info1))
        discovery.register_probe(SimpleProbe(info2))

        send_func.responses["sat-001"] = {"available": True}

        results = await discovery.discover_satellite("sat-001", ["cap1"])

        assert len(results) == 1
        assert results[0].capability_id == "cap1"

    @pytest.mark.asyncio
    async def test_discover_all(self, discovery, send_func):
        """Testet Discovery für mehrere Satellites."""
        info = CapabilityInfo("cap1", "Cap 1")
        discovery.register_probe(SimpleProbe(info))

        send_func.responses["sat-001"] = {"available": True}
        send_func.responses["sat-002"] = {"available": False}

        results = await discovery.discover_all(["sat-001", "sat-002"])

        assert "sat-001" in results
        assert "sat-002" in results

    def test_needs_rediscovery(self, discovery):
        """Testet Rediscovery-Prüfung."""
        assert discovery.needs_rediscovery("sat-001")

        discovery._last_discovery["sat-001"] = datetime.now()
        assert not discovery.needs_rediscovery("sat-001")

    def test_get_stats(self, discovery):
        """Testet Statistik-Abruf."""
        info = CapabilityInfo("test", "Test")
        discovery.register_probe(SimpleProbe(info))

        stats = discovery.get_stats()
        assert stats["probe_count"] == 1
        assert "config" in stats