import { tool } from '@strands-agents/sdk'
import { z } from 'zod'

export const notifyTool = tool({
  name: 'notify',
  description: 'Show a browser notification (requests permission if needed)',
  inputSchema: z.object({
    title: z.string(),
    body: z.string().optional(),
    icon: z.string().optional(),
  }),
  callback: async (input) => {
    try {
      if (!('Notification' in window)) return JSON.stringify({ status: 'error', error: 'Notifications unsupported' })
      let perm = Notification.permission
      if (perm !== 'granted') perm = await Notification.requestPermission()
      if (perm !== 'granted') return JSON.stringify({ status: 'error', error: 'Permission denied' })
      new Notification(input.title, { body: input.body, icon: input.icon || '/icon-192.png' })
      return JSON.stringify({ status: 'success' })
    } catch (err: unknown) { return JSON.stringify({ status: 'error', error: (err as Error).message }) }
  },
})

export const vibrateTool = tool({
  name: 'vibrate',
  description: 'Vibrate device (mobile). Pattern: array of ms durations (on/off/on/off...)',
  inputSchema: z.object({ pattern: z.array(z.number()).describe('Vibration pattern in ms') }),
  callback: (input) => {
    try {
      if (!('vibrate' in navigator)) return JSON.stringify({ status: 'error', error: 'Vibration unsupported' })
      navigator.vibrate(input.pattern)
      return JSON.stringify({ status: 'success' })
    } catch (err: unknown) { return JSON.stringify({ status: 'error', error: (err as Error).message }) }
  },
})

export const NOTIFICATION_TOOLS = [notifyTool, vibrateTool]