# -*- coding: utf-8 -*-
"""
Mock-Objekte für Plugin-Tests.

Bietet Mock-Implementierungen der Trixy-Kernkomponenten.
"""
from __future__ import annotations

import asyncio
from dataclasses import dataclass, field
from datetime import datetime
from typing import Any, Callable
from enum import Enum, auto


class MockServiceState(Enum):
    """Zustand eines Mock-Services."""
    STOPPED = auto()
    STARTING = auto()
    RUNNING = auto()
    STOPPING = auto()


@dataclass
class MockEvent:
    """Ein Mock-Event."""
    name: str
    data: dict[str, Any]
    timestamp: datetime = field(default_factory=datetime.now)
    cancelled: bool = False

    def cancel(self) -> None:
        """Bricht das Event ab."""
        self.cancelled = True


class MockEventManager:
    """
    Mock-Implementierung des EventManagers.

    Zeichnet alle Events auf und ermöglicht das Testen
    von Event-basierten Interaktionen.

    Example:
        manager = MockEventManager()

        # Callback für Tests registrieren
        manager.set_emit_callback(my_callback)

        # Events werden aufgezeichnet
        manager.emit("test_event", {"key": "value"})

        # Events abrufen
        events = manager.get_events("test_event")
    """

    def __init__(self) -> None:
        """Initialisiert den Mock-EventManager."""
        self._events: list[MockEvent] = []
        self._handlers: dict[str, list[Callable]] = {}
        self._emit_callback: Callable[[str, dict], None] | None = None
        self._running = False

    @property
    def events(self) -> list[MockEvent]:
        """Alle aufgezeichneten Events."""
        return self._events.copy()

    def set_emit_callback(
        self,
        callback: Callable[[str, dict], None],
    ) -> None:
        """Setzt einen Callback für emittierte Events."""
        self._emit_callback = callback

    def emit(
        self,
        name: str,
        data: dict[str, Any] | None = None,
    ) -> MockEvent:
        """
        Emittiert ein Event.

        Args:
            name: Event-Name
            data: Event-Daten

        Returns:
            Das erstellte Event
        """
        event = MockEvent(name=name, data=data or {})
        self._events.append(event)

        # Callback benachrichtigen
        if self._emit_callback:
            self._emit_callback(name, data or {})

        # Handler aufrufen
        if name in self._handlers:
            for handler in self._handlers[name]:
                try:
                    handler(name, data or {})
                except Exception:
                    pass

        return event

    async def emit_async(
        self,
        name: str,
        data: dict[str, Any] | None = None,
    ) -> MockEvent:
        """Emittiert ein Event asynchron."""
        return self.emit(name, data)

    def subscribe(
        self,
        event_name: str,
        handler: Callable,
    ) -> None:
        """Registriert einen Event-Handler."""
        if event_name not in self._handlers:
            self._handlers[event_name] = []
        self._handlers[event_name].append(handler)

    def unsubscribe(
        self,
        event_name: str,
        handler: Callable,
    ) -> bool:
        """Entfernt einen Event-Handler."""
        if event_name in self._handlers:
            try:
                self._handlers[event_name].remove(handler)
                return True
            except ValueError:
                pass
        return False

    def get_events(self, name: str | None = None) -> list[MockEvent]:
        """
        Gibt Events zurück.

        Args:
            name: Optionaler Filter nach Event-Name

        Returns:
            Liste der Events
        """
        if name is None:
            return self._events.copy()
        return [e for e in self._events if e.name == name]

    def clear_events(self) -> None:
        """Löscht alle aufgezeichneten Events."""
        self._events.clear()

    def has_event(self, name: str) -> bool:
        """Prüft, ob ein Event existiert."""
        return any(e.name == name for e in self._events)

    def event_count(self, name: str | None = None) -> int:
        """Gibt die Anzahl der Events zurück."""
        return len(self.get_events(name))


class MockSatelliteManager:
    """
    Mock-Implementierung des SatelliteManagers.

    Simuliert Satellite-Verbindungen und -Operationen.

    Example:
        manager = MockSatelliteManager()

        # Satellites hinzufügen
        manager.add_satellite("living_room", {"alias": "Wohnzimmer"})

        # Operationen testen
        satellite = manager.get("living_room")
    """

    def __init__(self) -> None:
        """Initialisiert den Mock-SatelliteManager."""
        self._satellites: dict[str, dict[str, Any]] = {}
        self._connected: set[str] = set()

    def add_satellite(
        self,
        room_id: str,
        data: dict[str, Any] | None = None,
    ) -> None:
        """Fügt einen Mock-Satellite hinzu."""
        self._satellites[room_id] = {
            "room_id": room_id,
            "connected": False,
            **(data or {}),
        }

    def remove_satellite(self, room_id: str) -> bool:
        """Entfernt einen Satellite."""
        if room_id in self._satellites:
            del self._satellites[room_id]
            self._connected.discard(room_id)
            return True
        return False

    def get(self, room_id: str) -> dict[str, Any] | None:
        """Gibt einen Satellite zurück."""
        return self._satellites.get(room_id)

    def get_all(self) -> list[dict[str, Any]]:
        """Gibt alle Satellites zurück."""
        return list(self._satellites.values())

    def connect(self, room_id: str) -> bool:
        """Simuliert eine Verbindung."""
        if room_id in self._satellites:
            self._connected.add(room_id)
            self._satellites[room_id]["connected"] = True
            return True
        return False

    def disconnect(self, room_id: str) -> bool:
        """Simuliert eine Trennung."""
        if room_id in self._connected:
            self._connected.discard(room_id)
            if room_id in self._satellites:
                self._satellites[room_id]["connected"] = False
            return True
        return False

    def is_connected(self, room_id: str) -> bool:
        """Prüft, ob ein Satellite verbunden ist."""
        return room_id in self._connected

    def get_connected(self) -> list[str]:
        """Gibt alle verbundenen Satellites zurück."""
        return list(self._connected)

    def clear(self) -> None:
        """Entfernt alle Satellites."""
        self._satellites.clear()
        self._connected.clear()


class MockApplication:
    """
    Mock-Implementierung der Trixy-Application.

    Bietet Zugriff auf alle Mock-Komponenten.

    Example:
        app = MockApplication()

        # Services verwenden
        event_manager = app.event_manager
        satellite_manager = app.satellite_manager

        # Konfiguration setzen
        app.set_config("key", "value")
    """

    def __init__(
        self,
        event_manager: MockEventManager | None = None,
        satellite_manager: MockSatelliteManager | None = None,
        config: dict[str, Any] | None = None,
    ) -> None:
        """
        Initialisiert die Mock-Application.

        Args:
            event_manager: Optionaler EventManager
            satellite_manager: Optionaler SatelliteManager
            config: Optionale Konfiguration
        """
        self._event_manager = event_manager or MockEventManager()
        self._satellite_manager = satellite_manager or MockSatelliteManager()
        self._config = config or {}
        self._services: dict[str, Any] = {}
        self._state = MockServiceState.STOPPED

    @property
    def event_manager(self) -> MockEventManager:
        """Der EventManager."""
        return self._event_manager

    @property
    def satellite_manager(self) -> MockSatelliteManager:
        """Der SatelliteManager."""
        return self._satellite_manager

    @property
    def config(self) -> dict[str, Any]:
        """Die Konfiguration."""
        return self._config

    @property
    def state(self) -> MockServiceState:
        """Der Zustand der Application."""
        return self._state

    @property
    def is_running(self) -> bool:
        """Läuft die Application?"""
        return self._state == MockServiceState.RUNNING

    def set_config(self, key: str, value: Any) -> None:
        """Setzt einen Konfigurationswert."""
        self._config[key] = value

    def get_config(self, key: str, default: Any = None) -> Any:
        """Gibt einen Konfigurationswert zurück."""
        return self._config.get(key, default)

    def register_service(self, name: str, service: Any) -> None:
        """Registriert einen Service."""
        self._services[name] = service

    def get_service(self, name: str) -> Any:
        """Gibt einen Service zurück."""
        return self._services.get(name)

    def has_service(self, name: str) -> bool:
        """Prüft, ob ein Service existiert."""
        return name in self._services

    async def start(self) -> None:
        """Startet die Application."""
        self._state = MockServiceState.STARTING
        await asyncio.sleep(0)  # Simuliert async-Start
        self._state = MockServiceState.RUNNING

    async def stop(self) -> None:
        """Stoppt die Application."""
        self._state = MockServiceState.STOPPING
        await asyncio.sleep(0)  # Simuliert async-Stop
        self._state = MockServiceState.STOPPED

    def emit(self, name: str, data: dict[str, Any] | None = None) -> MockEvent:
        """Emittiert ein Event."""
        return self._event_manager.emit(name, data)


class MockPlugin:
    """
    Mock-Implementierung eines Plugins.

    Kann als Basis für Test-Plugins oder zum Testen
    von Plugin-Interaktionen verwendet werden.

    Example:
        plugin = MockPlugin("test_plugin")

        # Lifecycle simulieren
        await plugin.on_start()

        # Methoden aufrufen
        plugin.set_state("key", "value")

        # Aufräumen
        await plugin.on_stop()
    """

    # Plugin-Metadaten
    NAME = "mock_plugin"
    VERSION = "1.0.0"
    DESCRIPTION = "Ein Mock-Plugin für Tests"
    AUTHOR = "Test"

    def __init__(
        self,
        name: str | None = None,
        application: MockApplication | None = None,
        config: dict[str, Any] | None = None,
    ) -> None:
        """
        Initialisiert das Mock-Plugin.

        Args:
            name: Plugin-Name
            application: Application-Referenz
            config: Plugin-Konfiguration
        """
        self._name = name or self.NAME
        self._application = application
        self._config = config or {}
        self._enabled = True
        self._state: dict[str, Any] = {}
        self._event_handlers: dict[str, list[Callable]] = {}
        self._started = False

    @property
    def name(self) -> str:
        """Plugin-Name."""
        return self._name

    @property
    def application(self) -> MockApplication | None:
        """Application-Referenz."""
        return self._application

    @property
    def config(self) -> dict[str, Any]:
        """Plugin-Konfiguration."""
        return self._config

    @config.setter
    def config(self, value: dict[str, Any]) -> None:
        """Setzt die Konfiguration."""
        self._config = value

    @property
    def enabled(self) -> bool:
        """Plugin aktiviert?"""
        return self._enabled

    @enabled.setter
    def enabled(self, value: bool) -> None:
        """Aktiviert/Deaktiviert das Plugin."""
        self._enabled = value

    @property
    def is_started(self) -> bool:
        """Wurde das Plugin gestartet?"""
        return self._started

    def get_state(self) -> dict[str, Any]:
        """Gibt den Plugin-Zustand zurück."""
        return self._state.copy()

    def set_state(self, state: dict[str, Any] | str, value: Any = None) -> None:
        """
        Setzt den Plugin-Zustand.

        Args:
            state: Dictionary oder einzelner Key
            value: Wert wenn state ein Key ist
        """
        if isinstance(state, dict):
            self._state.update(state)
        else:
            self._state[state] = value

    def register_event_handler(
        self,
        event_name: str,
        handler: Callable,
    ) -> None:
        """Registriert einen Event-Handler."""
        if event_name not in self._event_handlers:
            self._event_handlers[event_name] = []
        self._event_handlers[event_name].append(handler)

    async def on_pre_start(self) -> None:
        """Pre-Start Hook."""
        pass

    async def on_start(self) -> None:
        """Start Hook."""
        self._started = True

    async def on_post_start(self) -> None:
        """Post-Start Hook."""
        pass

    async def on_pre_stop(self) -> None:
        """Pre-Stop Hook."""
        pass

    async def on_stop(self) -> None:
        """Stop Hook."""
        self._started = False

    async def on_post_stop(self) -> None:
        """Post-Stop Hook."""
        pass

    def emit(self, name: str, data: dict[str, Any] | None = None) -> None:
        """Emittiert ein Event."""
        if self._application:
            self._application.emit(name, data)

    def reload_config(self) -> None:
        """Lädt die Konfiguration neu (Mock)."""
        pass

    def save_config(self) -> None:
        """Speichert die Konfiguration (Mock)."""
        pass


class MockConfigManager:
    """
    Mock-Implementierung des ConfigManagers.

    Example:
        config = MockConfigManager({"key": "value"})
        value = config.get("key")
    """

    def __init__(self, data: dict[str, Any] | None = None) -> None:
        """Initialisiert den Mock-ConfigManager."""
        self._data = data or {}

    def get(self, key: str, default: Any = None) -> Any:
        """Gibt einen Wert zurück."""
        keys = key.split(".")
        value = self._data
        for k in keys:
            if isinstance(value, dict) and k in value:
                value = value[k]
            else:
                return default
        return value

    def set(self, key: str, value: Any) -> None:
        """Setzt einen Wert."""
        keys = key.split(".")
        data = self._data
        for k in keys[:-1]:
            if k not in data:
                data[k] = {}
            data = data[k]
        data[keys[-1]] = value

    def has(self, key: str) -> bool:
        """Prüft, ob ein Key existiert."""
        return self.get(key) is not None

    def to_dict(self) -> dict[str, Any]:
        """Gibt alle Daten als Dict zurück."""
        return self._data.copy()


class MockScheduler:
    """
    Mock-Implementierung des Schedulers.

    Example:
        scheduler = MockScheduler()
        scheduler.schedule("task", cron="0 * * * *")
    """

    def __init__(self) -> None:
        """Initialisiert den Mock-Scheduler."""
        self._tasks: dict[str, dict[str, Any]] = {}
        self._triggered: list[str] = []

    def schedule(
        self,
        name: str,
        cron: str | None = None,
        interval: float | None = None,
        handler: Callable | None = None,
    ) -> None:
        """Plant eine Aufgabe."""
        self._tasks[name] = {
            "cron": cron,
            "interval": interval,
            "handler": handler,
        }

    def unschedule(self, name: str) -> bool:
        """Entfernt eine Aufgabe."""
        if name in self._tasks:
            del self._tasks[name]
            return True
        return False

    def trigger(self, name: str) -> bool:
        """Triggert eine Aufgabe manuell."""
        if name in self._tasks:
            self._triggered.append(name)
            handler = self._tasks[name].get("handler")
            if handler:
                try:
                    handler()
                except Exception:
                    pass
            return True
        return False

    def get_tasks(self) -> list[str]:
        """Gibt alle Task-Namen zurück."""
        return list(self._tasks.keys())

    def get_triggered(self) -> list[str]:
        """Gibt alle getriggerten Tasks zurück."""
        return self._triggered.copy()

    def clear_triggered(self) -> None:
        """Löscht die Trigger-Historie."""
        self._triggered.clear()