@kody/spotify

import {
	getPlaybackState,
	hasDeviceSelector,
	pausePlayback,
	startOrResumePlayback,
} from '../lib/spotify-api.ts'
import type { PlayPauseParams } from '../lib/export-types.ts'

/**
 * Toggle Spotify playback between play and pause on the active or specified device.
 * Prefer `deviceName` when targeting a device; omit selectors for the active device.
 * Pass `dryRun: true` to preview the action without changing playback.
 * @example
 * import playPause from 'kody:@kody/spotify/play-pause'
 * const preview = await playPause({ dryRun: true })
 */
export default async function playPause(params: PlayPauseParams = {}) {
	const current = await getPlaybackState(params)
	const playbackDeviceId = current.playback?.device?.id ?? undefined
	const targetedParams = hasDeviceSelector(params)
		? params
		: { ...params, deviceId: params.deviceId ?? playbackDeviceId }

	if (current.nothingPlaying) {
		return await startOrResumePlayback(params)
	}
	if (current.playback?.is_playing) {
		return await pausePlayback(targetedParams)
	}
	return await startOrResumePlayback({
		...targetedParams,
		forceCollection: false,
	})
}