759ae5e
/**
* One-line rendering for the non-`Default` message kinds the backend writes into
* a room (`ChatMessageType`). These are events, not posts, so they render as a
* compact grey line instead of a message row — and a webhook/bot post carries
* real content, which must not be swallowed by the system styling.
*/
import type { ChatMessage } from '@/entities/chat'
import { t } from '@/shared/i18n'
export function systemLine(
message: ChatMessage,
nameOf: (userId: number | null | undefined) => string,
): string {
const who = nameOf(message.author_id)
if (message.author_type !== 'User') {
// Bots and webhooks post normal text; the label keeps it attributable.
const label = message.author?.display_name || message.author?.username || t('chat.system.integration')
return message.content
? t('chat.system.postWithContent', { author: label, content: message.content })
: t('chat.system.post', { author: label })
}
switch (message.message_type) {
case 'ThreadCreated':
return t('chat.system.threadCreated', { author: who })
case 'ChannelJoin':
return t('chat.system.joined', { author: who })
case 'ChannelLeave':
return t('chat.system.left', { author: who })
case 'ChannelTopic':
return message.content
? t('chat.system.topicChanged', { author: who, topic: message.content })
: t('chat.system.topicUpdated', { author: who })
case 'ChannelPinnedItem':
return t('chat.system.pinned', { author: who })
case 'Reminder':
return message.content
? t('chat.system.reminder', { author: who, content: message.content })
: t('chat.system.reminderSet', { author: who })
case 'System':
return message.content || t('chat.system.message')
default:
return message.content || t('chat.system.sent', { author: who })
}
}