"""Service implementations for AdGuard Control Hub integration."""
import asyncio
import logging
from typing import Any, Dict

import voluptuous as vol
from homeassistant.core import HomeAssistant, ServiceCall
from homeassistant.helpers import config_validation as cv

from .api import AdGuardHomeAPI
from .const import (
    DOMAIN,
    BLOCKED_SERVICES,
    ATTR_CLIENT_NAME,
    ATTR_SERVICES,
    ATTR_DURATION,
    ATTR_CLIENTS,
)

_LOGGER = logging.getLogger(__name__)

SCHEMA_BLOCK_SERVICES = vol.Schema({
    vol.Required(ATTR_CLIENT_NAME): cv.string,
    vol.Required(ATTR_SERVICES): vol.All(cv.ensure_list, [vol.In(BLOCKED_SERVICES.keys())]),
})

SCHEMA_EMERGENCY_UNBLOCK = vol.Schema({
    vol.Required(ATTR_DURATION): cv.positive_int,
    vol.Optional(ATTR_CLIENTS, default=["all"]): vol.All(cv.ensure_list, [cv.string]),
})


class AdGuardControlHubServices:
    """Handle services for AdGuard Control Hub."""

    def __init__(self, hass: HomeAssistant):
        """Initialize the services."""
        self.hass = hass

    def register_services(self) -> None:
        """Register all services."""
        self.hass.services.register(
            DOMAIN, "block_services", self.block_services, schema=SCHEMA_BLOCK_SERVICES
        )
        self.hass.services.register(
            DOMAIN, "unblock_services", self.unblock_services, schema=SCHEMA_BLOCK_SERVICES
        )
        self.hass.services.register(
            DOMAIN, "emergency_unblock", self.emergency_unblock, schema=SCHEMA_EMERGENCY_UNBLOCK
        )

    def unregister_services(self) -> None:
        """Unregister all services."""
        services = ["block_services", "unblock_services", "emergency_unblock"]

        for service in services:
            if self.hass.services.has_service(DOMAIN, service):
                self.hass.services.remove(DOMAIN, service)

    async def block_services(self, call: ServiceCall) -> None:
        """Block services for a specific client."""
        client_name = call.data[ATTR_CLIENT_NAME]
        services = call.data[ATTR_SERVICES]

        _LOGGER.info("Blocking services %s for client %s", services, client_name)

        for entry_data in self.hass.data[DOMAIN].values():
            api: AdGuardHomeAPI = entry_data["api"]
            try:
                client = await api.get_client_by_name(client_name)
                if client:
                    current_blocked = client.get("blocked_services", {})
                    current_services = current_blocked.get("ids", []) if isinstance(current_blocked, dict) else current_blocked or []
                    updated_services = list(set(current_services + services))
                    await api.update_client_blocked_services(client_name, updated_services)
                    _LOGGER.info("Successfully blocked services for %s", client_name)
            except Exception as err:
                _LOGGER.error("Failed to block services for %s: %s", client_name, err)

    async def unblock_services(self, call: ServiceCall) -> None:
        """Unblock services for a specific client."""
        client_name = call.data[ATTR_CLIENT_NAME]
        services = call.data[ATTR_SERVICES]

        for entry_data in self.hass.data[DOMAIN].values():
            api: AdGuardHomeAPI = entry_data["api"]
            try:
                client = await api.get_client_by_name(client_name)
                if client:
                    current_blocked = client.get("blocked_services", {})
                    current_services = current_blocked.get("ids", []) if isinstance(current_blocked, dict) else current_blocked or []
                    updated_services = [s for s in current_services if s not in services]
                    await api.update_client_blocked_services(client_name, updated_services)
                    _LOGGER.info("Successfully unblocked services for %s", client_name)
            except Exception as err:
                _LOGGER.error("Failed to unblock services for %s: %s", client_name, err)

    async def emergency_unblock(self, call: ServiceCall) -> None:
        """Emergency unblock - temporarily disable protection."""
        duration = call.data[ATTR_DURATION]
        clients = call.data[ATTR_CLIENTS]

        _LOGGER.warning("Emergency unblock activated for %s seconds", duration)

        for entry_data in self.hass.data[DOMAIN].values():
            api: AdGuardHomeAPI = entry_data["api"]
            try:
                if "all" in clients:
                    await api.set_protection(False)
                    # Re-enable after duration
                    async def delayed_enable():
                        await asyncio.sleep(duration)
                        try:
                            await api.set_protection(True)
                            _LOGGER.info("Emergency unblock expired - protection re-enabled")
                        except Exception as err:
                            _LOGGER.error("Failed to re-enable protection: %s", err)

                    asyncio.create_task(delayed_enable())
            except Exception as err:
                _LOGGER.error("Failed to execute emergency unblock: %s", err)