import type { VoiceTool } from './_types'
import { tabletJson } from './_http'

/**
 * Телевизор через Home Assistant (домен media_player).
 * Entity задаётся TV_ENTITY (по умолчанию media_player.tv).
 */
const ENTITY = () => process.env.TV_ENTITY || 'media_player.tv'

const controlTv: VoiceTool = {
  schema: {
    type: 'function',
    function: {
      name: 'control_tv',
      description:
        'Управление телевизором: включить/выключить, громкость, пауза/воспроизведение, звук. ' +
        'Используй для «включи телевизор», «выключи ТВ», «сделай телевизор тише», «поставь на паузу».',
      parameters: {
        type: 'object',
        properties: {
          action: {
            type: 'string',
            enum: ['turn_on', 'turn_off', 'volume', 'play', 'pause', 'mute'],
            description: 'Что сделать',
          },
          volume: {
            type: 'number',
            description: 'Громкость 0-100 при action=volume',
          },
        },
        required: ['action'],
      },
    },
  },

  async execute(args) {
    const action = String(args?.action || '')
    const entity_id = ENTITY()
    let payload: Record<string, any>

    switch (action) {
      case 'turn_on':
      case 'turn_off':
        payload = { domain: 'media_player', service: action, entity_id }
        break
      case 'play':
        payload = { domain: 'media_player', service: 'media_play', entity_id }
        break
      case 'pause':
        payload = { domain: 'media_player', service: 'media_pause', entity_id }
        break
      case 'mute':
        payload = { domain: 'media_player', service: 'volume_mute', entity_id, is_volume_muted: true }
        break
      case 'volume': {
        const v = Number(args?.volume)
        if (!Number.isFinite(v)) return { error: 'volume required' }
        payload = { domain: 'media_player', service: 'volume_set', entity_id, volume_level: Math.max(0, Math.min(1, v / 100)) }
        break
      }
      default:
        return { error: `unknown action: ${action}` }
    }

    await tabletJson('POST', '/api/voice/tools/smart-home', payload)
    return { success: true, action, ...(action === 'volume' ? { volume: args?.volume } : {}) }
  },
}

export const tools: VoiceTool[] = [controlTv]