karabiner-elements-profile-switcher.ts

// Name: Karabiner Elements Profile Switcher
// Acknowledgements:
// - https://www.alfredforum.com/topic/9927-karabiner-elements-profile-switcher/
// Notes:
// - Probably could also work with cli https://github.com/raycast/extensions/blob/be03024b4c4f4f1ad0af7f4d20ea4630d7f0ee20/extensions/karabiner-profile-switcher/src/model/KarabinerManager.ts

import "@johnlindquist/kit"
import fs from 'fs'

const CONFIG_PATH = home('.config/karabiner/karabiner.json')
const configJson = JSON.parse(fs.readFileSync(CONFIG_PATH, 'utf8'))

const profileChoices = configJson.profiles.map((profile: any) => ({
  name: profile.name,
  value: profile.name,
  tag: profile.selected ? '🟢' : '', // Note: Not sure if there's a better way to highlight currenly active
}))

const selectedProfile = await arg({
  placeholder: 'Select a profile',
  choices: profileChoices,
})

for (const profile of configJson.profiles) {
  profile.selected = profile.name === selectedProfile // intentional mutation
}

fs.writeFileSync(CONFIG_PATH, JSON.stringify(configJson, null, 2))

notify(`Karabiner Elements profile switched to "${selectedProfile}"`)