// ====================================================================
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// IM 会话 / 撤回展示 utility
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// ====================================================================
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// 基于 conversation 上下文 + sender 信息实时算"展示文案"。
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// 1. 发送人名一律由 utils/user.getSenderDisplayName 实时算，本文件只负责拼"撤回 tip / 摘要"等文案。
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// 2. fallbackName 由调用方传入（典型来源：Conversation.lastSenderDisplayName 快照），透传到 getSenderDisplayName 内部，算不出真名时兜底
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// ====================================================================
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import type { Message } from '../home/types'
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import { ImContentType, ImConversationType, isFriendChatTip, isGroupNotification, isRtcCallTip } from './constants'
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import {
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type CardMessage,
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type FaceMessage,
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type FileMessage,
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getCardLabelInfo,
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type MaterialMessage,
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parseMessage,
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segmentsToText,
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type TextMessage,
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tipMention,
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type TipSegment,
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tipText
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} from './message'
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import { resolveFriendNotificationText, resolveGroupNotificationText, resolveRtcCallLastContent } from './message'
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import { getSenderDisplayName } from './user'
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/** 会话主键：`type-targetId` 拼成稳定字符串，给 v-for :key、active 比对、map key 等场景共用 */
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export function getConversationKey(conversation: { targetId: number; type: number; }): string {
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return `${conversation.type}-${conversation.targetId}`
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}
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/** 按昵称模糊过滤会话列表：空 keyword 原样返回，命中走 toLowerCase 不区分大小写 */
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export function filterConversationsByKeyword<T extends { name?: string }>(
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list: T[],
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keyword: string
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): T[] {
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const trimmed = keyword.trim().toLowerCase()
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if (!trimmed) {
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return list
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}
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return list.filter((c) => (c.name || '').toLowerCase().includes(trimmed))
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}
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/**
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* 表情消息的统一文本预览：摘要 / 历史搜索 / 引用块 / 管理后台预览共用一份
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* 有 name 时走 `[表情] name`（系统包），无 name 时走 `[表情]`（个人表情通常无 name）
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*/
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export function buildFacePreviewText(facePayload: null | undefined | { name?: string }): string {
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return facePayload?.name ? `[表情] ${facePayload.name}` : '[表情]'
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}
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/**
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* 撤回提示 segments
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*
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* senderId 缺失时不挂 mention 段，避免点出错号；算不出真名降级为「对方」纯文本
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*/
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export function buildRecallTipSegments(
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senderId: number,
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selfSend: boolean,
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conversationType: number,
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conversationTargetId: number,
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fallbackName?: string
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): TipSegment[] {
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if (selfSend) {
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return [tipText('你撤回了一条消息')]
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}
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const senderDisplayName = getSenderDisplayName(
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senderId,
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conversationType,
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conversationTargetId,
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fallbackName
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)
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if (!senderId) {
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return [tipText(`${senderDisplayName || '对方'} 撤回了一条消息`)]
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}
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return [
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tipMention(senderId, senderDisplayName || '对方'),
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tipText(' 撤回了一条消息')
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]
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}
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/** 撤回提示文案：自己撤回固定文案，对方撤回带 sender 名（实时算 + fallbackName 兜底） */
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export function buildRecallTip(
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senderId: number,
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selfSend: boolean,
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conversationType: number,
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conversationTargetId: number,
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fallbackName?: string
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): string {
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return segmentsToText(
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buildRecallTipSegments(senderId, selfSend, conversationType, conversationTargetId, fallbackName)
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)
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}
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/**
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* 单条消息的纯文本摘要；不依赖 conversation 上下文
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*
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* - withFileName=true 时文件消息附带文件名（合并转发详情用）
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* - 不处理 RECALL / 群广播 / 好友通知，由调用方包一层
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*/
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export function summarizeMessageContent(
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message: Pick<Message, 'content' | 'type'>,
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opts?: { withFileName?: boolean }
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): string {
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switch (message.type) {
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case ImContentType.CARD: {
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return `[${getCardLabelInfo(parseMessage<CardMessage>(message.content)).label}]`
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}
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case ImContentType.FACE: {
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return buildFacePreviewText(parseMessage<FaceMessage>(message.content))
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}
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case ImContentType.FILE: {
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if (opts?.withFileName) {
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const file = parseMessage<FileMessage>(message.content)
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return file?.name ? `[文件] ${file.name}` : '[文件]'
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}
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return '[文件]'
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}
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case ImContentType.IMAGE: {
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return '[图片]'
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}
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case ImContentType.MATERIAL: {
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const material = parseMessage<MaterialMessage>(message.content)
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return material?.title ? `[频道] ${material.title}` : '[频道]'
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}
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case ImContentType.MERGE: {
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return '[聊天记录]'
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}
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case ImContentType.RTC_CALL_END:
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case ImContentType.RTC_CALL_START: {
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return '[语音通话]'
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}
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case ImContentType.TEXT: {
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return parseMessage<TextMessage>(message.content)?.content ?? ''
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}
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case ImContentType.VIDEO: {
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return '[视频]'
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}
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case ImContentType.VOICE: {
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return '[语音]'
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}
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default: {
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return ''
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}
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}
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}
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/** 会话列表最后一条摘要：RECALL 走 buildRecallTip + fallbackName；其它按内容类型派生 */
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export function resolveConversationLastContent(
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message: Message,
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conversationType: number,
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conversationTargetId: number,
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fallbackName?: string
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): string {
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if (message.type === ImContentType.RECALL) {
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return buildRecallTip(
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message.senderId,
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message.selfSend,
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conversationType,
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conversationTargetId,
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fallbackName
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)
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}
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if (isFriendChatTip(message.type)) {
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return resolveFriendNotificationText(message)
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}
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if (isGroupNotification(message.type)) {
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return resolveGroupNotificationText(message, (id) =>
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getSenderDisplayName(id, ImConversationType.GROUP, message.targetId ?? 0)
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)
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}
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if (isRtcCallTip(message.type)) {
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return resolveRtcCallLastContent(message, conversationType)
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}
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return summarizeMessageContent(message)
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}
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