import { discordBotRequest } from './bot.ts'
import { boundedInteger, clipText, inputRecord, pickString, requireLiveMutation, snowflake } from './validation.ts'

type DiscordThread = {
	id?: string
	name?: string
	parent_id?: string
}

/**
 * Create a public thread from an existing Discord message.
 *
 * Pass `dryRun: true` to preview, or `confirm: true` to create. Default
 * archive duration is 1440 minutes.
 *
 * @param params.secretName - Bot-token secret; default `discordBotToken`.
 */
export default async function createThread(params: Record<string, unknown> = {}) {
	const input = inputRecord(params)
	const channelId = snowflake(input, 'channelId', ['channel_id'])
	const messageId = snowflake(input, 'messageId', ['message_id'])
	const threadName =
		clipText(pickString(input.threadName, input.thread_name, input.name) || 'Kody thread', 90) || 'Kody thread'
	const autoArchiveDuration = boundedInteger(input.autoArchiveDuration, 1440, 60, 10080, 'autoArchiveDuration')
	const body = { name: threadName, auto_archive_duration: autoArchiveDuration }

	if (requireLiveMutation(input, 'create-thread') === 'dryRun') {
		return {
			dryRun: true,
			threadId: 'dry-thread-' + messageId,
			threadName,
			parentChannelId: channelId,
			body,
		}
	}

	const response = (await discordBotRequest(
		'/channels/' + channelId + '/messages/' + messageId + '/threads',
		input,
		{ method: 'POST', body: JSON.stringify(body) },
	)) as DiscordThread

	return {
		id: response.id ?? null,
		threadId: response.id ?? null,
		threadName: response.name || threadName,
		parentChannelId: response.parent_id || channelId,
	}
}