"""Init file for Supervisor Observer RESTful API."""

import asyncio
import logging
from typing import Any

from aiohttp import web
import voluptuous as vol

from ..const import (
    ATTR_BLK_READ,
    ATTR_BLK_WRITE,
    ATTR_CPU_PERCENT,
    ATTR_HOST,
    ATTR_MEMORY_LIMIT,
    ATTR_MEMORY_PERCENT,
    ATTR_MEMORY_USAGE,
    ATTR_NETWORK_RX,
    ATTR_NETWORK_TX,
    ATTR_UPDATE_AVAILABLE,
    ATTR_VERSION,
    ATTR_VERSION_LATEST,
)
from ..coresys import CoreSysAttributes
from ..validate import version_tag
from .utils import api_process, api_validate

_LOGGER: logging.Logger = logging.getLogger(__name__)

SCHEMA_VERSION = vol.Schema({vol.Optional(ATTR_VERSION): version_tag})


class APIObserver(CoreSysAttributes):
    """Handle RESTful API for Observer functions."""

    @api_process
    async def info(self, request: web.Request) -> dict[str, Any]:
        """Return HA Observer information."""
        return {
            ATTR_HOST: str(self.sys_docker.network.observer),
            ATTR_VERSION: self.sys_plugins.observer.version,
            ATTR_VERSION_LATEST: self.sys_plugins.observer.latest_version,
            ATTR_UPDATE_AVAILABLE: self.sys_plugins.observer.need_update,
        }

    @api_process
    async def stats(self, request: web.Request) -> dict[str, Any]:
        """Return resource information."""
        stats = await self.sys_plugins.observer.stats()

        return {
            ATTR_CPU_PERCENT: stats.cpu_percent,
            ATTR_MEMORY_USAGE: stats.memory_usage,
            ATTR_MEMORY_LIMIT: stats.memory_limit,
            ATTR_MEMORY_PERCENT: stats.memory_percent,
            ATTR_NETWORK_RX: stats.network_rx,
            ATTR_NETWORK_TX: stats.network_tx,
            ATTR_BLK_READ: stats.blk_read,
            ATTR_BLK_WRITE: stats.blk_write,
        }

    @api_process
    async def update(self, request: web.Request) -> None:
        """Update HA observer."""
        body = await api_validate(SCHEMA_VERSION, request)
        version = body.get(ATTR_VERSION, self.sys_plugins.observer.latest_version)

        await asyncio.shield(self.sys_plugins.observer.update(version))