signal-desktop/ts/state/ducks/conversations.ts
2020-09-09 17:34:57 -07:00

1230 lines
29 KiB
TypeScript

import {
difference,
fromPairs,
intersection,
omit,
orderBy,
pick,
uniq,
values,
without,
} from 'lodash';
import { trigger } from '../../shims/events';
import { NoopActionType } from './noop';
import { AttachmentType } from '../../types/Attachment';
import { ColorType } from '../../types/Colors';
// State
export type DBConversationType = {
id: string;
activeAt?: number;
lastMessage: string;
type: string;
};
export type ConversationType = {
id: string;
uuid?: string;
e164?: string;
name?: string;
firstName?: string;
profileName?: string;
avatarPath?: string;
color?: ColorType;
isArchived?: boolean;
isBlocked?: boolean;
isVerified?: boolean;
activeAt?: number;
timestamp?: number;
inboxPosition?: number;
lastMessage?: {
status:
| 'error'
| 'partial-sent'
| 'sending'
| 'sent'
| 'delivered'
| 'read';
text: string;
};
phoneNumber?: string;
membersCount?: number;
muteExpiresAt?: number;
type: 'direct' | 'group';
isMe?: boolean;
lastUpdated: number;
title: string;
unreadCount?: number;
isSelected?: boolean;
typingContact?: {
avatarPath?: string;
color: string;
name?: string;
phoneNumber: string;
profileName?: string;
};
shouldShowDraft?: boolean;
draftText?: string;
draftPreview?: string;
messageRequestsEnabled?: boolean;
acceptedMessageRequest?: boolean;
};
export type ConversationLookupType = {
[key: string]: ConversationType;
};
export type MessageType = {
id: string;
conversationId: string;
source: string;
type:
| 'incoming'
| 'outgoing'
| 'group'
| 'keychange'
| 'verified-change'
| 'message-history-unsynced'
| 'call-history';
quote?: { author: string };
received_at: number;
hasSignalAccount?: boolean;
bodyPending?: boolean;
attachments: Array<AttachmentType>;
sticker: {
data?: {
pending: boolean;
};
};
unread: boolean;
reactions?: Array<{
emoji: string;
timestamp: number;
from: {
id: string;
color?: string;
avatarPath?: string;
name?: string;
profileName?: string;
isMe?: boolean;
phoneNumber?: string;
};
}>;
deletedForEveryone?: boolean;
errors?: Array<Error>;
group_update?: any;
// No need to go beyond this; unused at this stage, since this goes into
// a reducer still in plain JavaScript and comes out well-formed
};
type MessagePointerType = {
id: string;
received_at: number;
};
type MessageMetricsType = {
newest?: MessagePointerType;
oldest?: MessagePointerType;
oldestUnread?: MessagePointerType;
totalUnread: number;
};
export type MessageLookupType = {
[key: string]: MessageType;
};
export type ConversationMessageType = {
heightChangeMessageIds: Array<string>;
isLoadingMessages: boolean;
isNearBottom?: boolean;
loadCountdownStart?: number;
messageIds: Array<string>;
metrics: MessageMetricsType;
resetCounter: number;
scrollToMessageId?: string;
scrollToMessageCounter: number;
};
export type MessagesByConversationType = {
[key: string]: ConversationMessageType | null;
};
export type ConversationsStateType = {
conversationLookup: ConversationLookupType;
selectedConversation?: string;
selectedMessage?: string;
selectedMessageCounter: number;
showArchived: boolean;
// Note: it's very important that both of these locations are always kept up to date
messagesLookup: MessageLookupType;
messagesByConversation: MessagesByConversationType;
};
// Actions
type ConversationAddedActionType = {
type: 'CONVERSATION_ADDED';
payload: {
id: string;
data: ConversationType;
};
};
type ConversationChangedActionType = {
type: 'CONVERSATION_CHANGED';
payload: {
id: string;
data: ConversationType;
};
};
type ConversationRemovedActionType = {
type: 'CONVERSATION_REMOVED';
payload: {
id: string;
};
};
export type ConversationUnloadedActionType = {
type: 'CONVERSATION_UNLOADED';
payload: {
id: string;
};
};
export type RemoveAllConversationsActionType = {
type: 'CONVERSATIONS_REMOVE_ALL';
payload: null;
};
export type MessageSelectedActionType = {
type: 'MESSAGE_SELECTED';
payload: {
messageId: string;
conversationId: string;
};
};
export type MessageChangedActionType = {
type: 'MESSAGE_CHANGED';
payload: {
id: string;
conversationId: string;
data: MessageType;
};
};
export type MessageDeletedActionType = {
type: 'MESSAGE_DELETED';
payload: {
id: string;
conversationId: string;
};
};
export type MessagesAddedActionType = {
type: 'MESSAGES_ADDED';
payload: {
conversationId: string;
messages: Array<MessageType>;
isNewMessage: boolean;
isActive: boolean;
};
};
export type MessagesResetActionType = {
type: 'MESSAGES_RESET';
payload: {
conversationId: string;
messages: Array<MessageType>;
metrics: MessageMetricsType;
scrollToMessageId?: string;
// The set of provided messages should be trusted, even if it conflicts with metrics,
// because we weren't looking for a specific time window of messages with our query.
unboundedFetch: boolean;
};
};
export type SetMessagesLoadingActionType = {
type: 'SET_MESSAGES_LOADING';
payload: {
conversationId: string;
isLoadingMessages: boolean;
};
};
export type SetLoadCountdownStartActionType = {
type: 'SET_LOAD_COUNTDOWN_START';
payload: {
conversationId: string;
loadCountdownStart?: number;
};
};
export type SetIsNearBottomActionType = {
type: 'SET_NEAR_BOTTOM';
payload: {
conversationId: string;
isNearBottom: boolean;
};
};
export type ScrollToMessageActionType = {
type: 'SCROLL_TO_MESSAGE';
payload: {
conversationId: string;
messageId: string;
};
};
export type ClearChangedMessagesActionType = {
type: 'CLEAR_CHANGED_MESSAGES';
payload: {
conversationId: string;
};
};
export type ClearSelectedMessageActionType = {
type: 'CLEAR_SELECTED_MESSAGE';
payload: null;
};
export type ClearUnreadMetricsActionType = {
type: 'CLEAR_UNREAD_METRICS';
payload: {
conversationId: string;
};
};
export type SelectedConversationChangedActionType = {
type: 'SELECTED_CONVERSATION_CHANGED';
payload: {
id: string;
messageId?: string;
};
};
type ShowInboxActionType = {
type: 'SHOW_INBOX';
payload: null;
};
export type ShowArchivedConversationsActionType = {
type: 'SHOW_ARCHIVED_CONVERSATIONS';
payload: null;
};
export type ConversationActionType =
| ConversationAddedActionType
| ConversationChangedActionType
| ConversationRemovedActionType
| ConversationUnloadedActionType
| RemoveAllConversationsActionType
| MessageSelectedActionType
| MessageChangedActionType
| MessageDeletedActionType
| MessagesAddedActionType
| MessagesResetActionType
| SetMessagesLoadingActionType
| SetIsNearBottomActionType
| SetLoadCountdownStartActionType
| ClearChangedMessagesActionType
| ClearSelectedMessageActionType
| ClearUnreadMetricsActionType
| ScrollToMessageActionType
| SelectedConversationChangedActionType
| MessageDeletedActionType
| SelectedConversationChangedActionType
| ShowInboxActionType
| ShowArchivedConversationsActionType;
// Action Creators
export const actions = {
conversationAdded,
conversationChanged,
conversationRemoved,
conversationUnloaded,
removeAllConversations,
selectMessage,
messageDeleted,
messageChanged,
messagesAdded,
messagesReset,
setMessagesLoading,
setLoadCountdownStart,
setIsNearBottom,
clearChangedMessages,
clearSelectedMessage,
clearUnreadMetrics,
scrollToMessage,
openConversationInternal,
openConversationExternal,
showInbox,
showArchivedConversations,
};
function conversationAdded(
id: string,
data: ConversationType
): ConversationAddedActionType {
return {
type: 'CONVERSATION_ADDED',
payload: {
id,
data,
},
};
}
function conversationChanged(
id: string,
data: ConversationType
): ConversationChangedActionType {
return {
type: 'CONVERSATION_CHANGED',
payload: {
id,
data,
},
};
}
function conversationRemoved(id: string): ConversationRemovedActionType {
return {
type: 'CONVERSATION_REMOVED',
payload: {
id,
},
};
}
function conversationUnloaded(id: string): ConversationUnloadedActionType {
return {
type: 'CONVERSATION_UNLOADED',
payload: {
id,
},
};
}
function removeAllConversations(): RemoveAllConversationsActionType {
return {
type: 'CONVERSATIONS_REMOVE_ALL',
payload: null,
};
}
function selectMessage(messageId: string, conversationId: string) {
return {
type: 'MESSAGE_SELECTED',
payload: {
messageId,
conversationId,
},
};
}
function messageChanged(
id: string,
conversationId: string,
data: MessageType
): MessageChangedActionType {
return {
type: 'MESSAGE_CHANGED',
payload: {
id,
conversationId,
data,
},
};
}
function messageDeleted(
id: string,
conversationId: string
): MessageDeletedActionType {
return {
type: 'MESSAGE_DELETED',
payload: {
id,
conversationId,
},
};
}
function messagesAdded(
conversationId: string,
messages: Array<MessageType>,
isNewMessage: boolean,
isActive: boolean
): MessagesAddedActionType {
return {
type: 'MESSAGES_ADDED',
payload: {
conversationId,
messages,
isNewMessage,
isActive,
},
};
}
function messagesReset(
conversationId: string,
messages: Array<MessageType>,
metrics: MessageMetricsType,
scrollToMessageId?: string,
unboundedFetch?: boolean
): MessagesResetActionType {
return {
type: 'MESSAGES_RESET',
payload: {
unboundedFetch: Boolean(unboundedFetch),
conversationId,
messages,
metrics,
scrollToMessageId,
},
};
}
function setMessagesLoading(
conversationId: string,
isLoadingMessages: boolean
): SetMessagesLoadingActionType {
return {
type: 'SET_MESSAGES_LOADING',
payload: {
conversationId,
isLoadingMessages,
},
};
}
function setLoadCountdownStart(
conversationId: string,
loadCountdownStart?: number
): SetLoadCountdownStartActionType {
return {
type: 'SET_LOAD_COUNTDOWN_START',
payload: {
conversationId,
loadCountdownStart,
},
};
}
function setIsNearBottom(
conversationId: string,
isNearBottom: boolean
): SetIsNearBottomActionType {
return {
type: 'SET_NEAR_BOTTOM',
payload: {
conversationId,
isNearBottom,
},
};
}
function clearChangedMessages(
conversationId: string
): ClearChangedMessagesActionType {
return {
type: 'CLEAR_CHANGED_MESSAGES',
payload: {
conversationId,
},
};
}
function clearSelectedMessage(): ClearSelectedMessageActionType {
return {
type: 'CLEAR_SELECTED_MESSAGE',
payload: null,
};
}
function clearUnreadMetrics(
conversationId: string
): ClearUnreadMetricsActionType {
return {
type: 'CLEAR_UNREAD_METRICS',
payload: {
conversationId,
},
};
}
function scrollToMessage(
conversationId: string,
messageId: string
): ScrollToMessageActionType {
return {
type: 'SCROLL_TO_MESSAGE',
payload: {
conversationId,
messageId,
},
};
}
// Note: we need two actions here to simplify. Operations outside of the left pane can
// trigger an 'openConversation' so we go through Whisper.events for all
// conversation selection. Internal just triggers the Whisper.event, and External
// makes the changes to the store.
function openConversationInternal(
id: string,
messageId?: string
): NoopActionType {
trigger('showConversation', id, messageId);
return {
type: 'NOOP',
payload: null,
};
}
function openConversationExternal(
id: string,
messageId?: string
): SelectedConversationChangedActionType {
return {
type: 'SELECTED_CONVERSATION_CHANGED',
payload: {
id,
messageId,
},
};
}
function showInbox() {
return {
type: 'SHOW_INBOX',
payload: null,
};
}
function showArchivedConversations() {
return {
type: 'SHOW_ARCHIVED_CONVERSATIONS',
payload: null,
};
}
// Reducer
function getEmptyState(): ConversationsStateType {
return {
conversationLookup: {},
messagesByConversation: {},
messagesLookup: {},
selectedMessageCounter: 0,
showArchived: false,
};
}
// tslint:disable-next-line cyclomatic-complexity
function hasMessageHeightChanged(
message: MessageType,
previous: MessageType
): Boolean {
const messageAttachments = message.attachments || [];
const previousAttachments = previous.attachments || [];
const errorStatusChanged =
(!message.errors && previous.errors) ||
(message.errors && !previous.errors) ||
(message.errors &&
previous.errors &&
message.errors.length !== previous.errors.length);
if (errorStatusChanged) {
return true;
}
const groupUpdateChanged = message.group_update !== previous.group_update;
if (groupUpdateChanged) {
return true;
}
const stickerPendingChanged =
message.sticker &&
message.sticker.data &&
previous.sticker &&
previous.sticker.data &&
previous.sticker.data.pending !== message.sticker.data.pending;
if (stickerPendingChanged) {
return true;
}
const longMessageAttachmentLoaded =
previous.bodyPending && !message.bodyPending;
if (longMessageAttachmentLoaded) {
return true;
}
const firstAttachmentNoLongerPending =
previousAttachments[0] &&
previousAttachments[0].pending &&
messageAttachments[0] &&
!messageAttachments[0].pending;
if (firstAttachmentNoLongerPending) {
return true;
}
const signalAccountChanged =
Boolean(message.hasSignalAccount || previous.hasSignalAccount) &&
message.hasSignalAccount !== previous.hasSignalAccount;
if (signalAccountChanged) {
return true;
}
const currentReactions = message.reactions || [];
const lastReactions = previous.reactions || [];
const reactionsChanged =
(currentReactions.length === 0) !== (lastReactions.length === 0);
if (reactionsChanged) {
return true;
}
const isDeletedForEveryone = message.deletedForEveryone;
const wasDeletedForEveryone = previous.deletedForEveryone;
if (isDeletedForEveryone !== wasDeletedForEveryone) {
return true;
}
return false;
}
// tslint:disable-next-line cyclomatic-complexity max-func-body-length
export function reducer(
state: ConversationsStateType = getEmptyState(),
action: ConversationActionType
): ConversationsStateType {
if (action.type === 'CONVERSATION_ADDED') {
const { payload } = action;
const { id, data } = payload;
const { conversationLookup } = state;
return {
...state,
conversationLookup: {
...conversationLookup,
[id]: data,
},
};
}
if (action.type === 'CONVERSATION_CHANGED') {
const { payload } = action;
const { id, data } = payload;
const { conversationLookup } = state;
let showArchived = state.showArchived;
let selectedConversation = state.selectedConversation;
const existing = conversationLookup[id];
// In the change case we only modify the lookup if we already had that conversation
if (!existing) {
return state;
}
if (selectedConversation === id) {
// Archived -> Inbox: we go back to the normal inbox view
if (existing.isArchived && !data.isArchived) {
showArchived = false;
}
// Inbox -> Archived: no conversation is selected
// Note: With today's stacked converastions architecture, this can result in weird
// behavior - no selected conversation in the left pane, but a conversation show
// in the right pane.
if (!existing.isArchived && data.isArchived) {
selectedConversation = undefined;
}
}
return {
...state,
selectedConversation,
showArchived,
conversationLookup: {
...conversationLookup,
[id]: data,
},
};
}
if (action.type === 'CONVERSATION_REMOVED') {
const { payload } = action;
const { id } = payload;
const { conversationLookup } = state;
return {
...state,
conversationLookup: omit(conversationLookup, [id]),
};
}
if (action.type === 'CONVERSATION_UNLOADED') {
const { payload } = action;
const { id } = payload;
const existingConversation = state.messagesByConversation[id];
if (!existingConversation) {
return state;
}
const { messageIds } = existingConversation;
const selectedConversation =
state.selectedConversation !== id
? state.selectedConversation
: undefined;
return {
...state,
selectedConversation,
messagesLookup: omit(state.messagesLookup, messageIds),
messagesByConversation: omit(state.messagesByConversation, [id]),
};
}
if (action.type === 'CONVERSATIONS_REMOVE_ALL') {
return getEmptyState();
}
if (action.type === 'MESSAGE_SELECTED') {
const { messageId, conversationId } = action.payload;
if (state.selectedConversation !== conversationId) {
return state;
}
return {
...state,
selectedMessage: messageId,
selectedMessageCounter: state.selectedMessageCounter + 1,
};
}
if (action.type === 'MESSAGE_CHANGED') {
const { id, conversationId, data } = action.payload;
const existingConversation = state.messagesByConversation[conversationId];
// We don't keep track of messages unless their conversation is loaded...
if (!existingConversation) {
return state;
}
// ...and we've already loaded that message once
const existingMessage = state.messagesLookup[id];
if (!existingMessage) {
return state;
}
// Check for changes which could affect height - that's why we need this
// heightChangeMessageIds field. It tells Timeline to recalculate all of its heights
const hasHeightChanged = hasMessageHeightChanged(data, existingMessage);
const { heightChangeMessageIds } = existingConversation;
const updatedChanges = hasHeightChanged
? uniq([...heightChangeMessageIds, id])
: heightChangeMessageIds;
return {
...state,
messagesLookup: {
...state.messagesLookup,
[id]: data,
},
messagesByConversation: {
...state.messagesByConversation,
[conversationId]: {
...existingConversation,
heightChangeMessageIds: updatedChanges,
},
},
};
}
if (action.type === 'MESSAGES_RESET') {
const {
conversationId,
messages,
metrics,
scrollToMessageId,
unboundedFetch,
} = action.payload;
const { messagesByConversation, messagesLookup } = state;
const existingConversation = messagesByConversation[conversationId];
const resetCounter = existingConversation
? existingConversation.resetCounter + 1
: 0;
const sorted = orderBy(messages, ['received_at'], ['ASC']);
const messageIds = sorted.map(message => message.id);
const lookup = fromPairs(messages.map(message => [message.id, message]));
let { newest, oldest } = metrics;
// If our metrics are a little out of date, we'll fix them up
if (messages.length > 0) {
const first = messages[0];
if (first && (!oldest || first.received_at <= oldest.received_at)) {
oldest = pick(first, ['id', 'received_at']);
}
const last = messages[messages.length - 1];
if (
last &&
(!newest || unboundedFetch || last.received_at >= newest.received_at)
) {
newest = pick(last, ['id', 'received_at']);
}
}
return {
...state,
selectedMessage: scrollToMessageId,
selectedMessageCounter: state.selectedMessageCounter + 1,
messagesLookup: {
...messagesLookup,
...lookup,
},
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
isLoadingMessages: false,
scrollToMessageId,
scrollToMessageCounter: existingConversation
? existingConversation.scrollToMessageCounter + 1
: 0,
messageIds,
metrics: {
...metrics,
newest,
oldest,
},
resetCounter,
heightChangeMessageIds: [],
},
},
};
}
if (action.type === 'SET_MESSAGES_LOADING') {
const { payload } = action;
const { conversationId, isLoadingMessages } = payload;
const { messagesByConversation } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
return {
...state,
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
...existingConversation,
loadCountdownStart: undefined,
isLoadingMessages,
},
},
};
}
if (action.type === 'SET_LOAD_COUNTDOWN_START') {
const { payload } = action;
const { conversationId, loadCountdownStart } = payload;
const { messagesByConversation } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
return {
...state,
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
...existingConversation,
loadCountdownStart,
},
},
};
}
if (action.type === 'SET_NEAR_BOTTOM') {
const { payload } = action;
const { conversationId, isNearBottom } = payload;
const { messagesByConversation } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
return {
...state,
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
...existingConversation,
isNearBottom,
},
},
};
}
if (action.type === 'SCROLL_TO_MESSAGE') {
const { payload } = action;
const { conversationId, messageId } = payload;
const { messagesByConversation, messagesLookup } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
if (!messagesLookup[messageId]) {
return state;
}
if (!existingConversation.messageIds.includes(messageId)) {
return state;
}
return {
...state,
selectedMessage: messageId,
selectedMessageCounter: state.selectedMessageCounter + 1,
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
...existingConversation,
isLoadingMessages: false,
scrollToMessageId: messageId,
scrollToMessageCounter:
existingConversation.scrollToMessageCounter + 1,
},
},
};
}
if (action.type === 'MESSAGE_DELETED') {
const { id, conversationId } = action.payload;
const { messagesByConversation, messagesLookup } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
// Assuming that we always have contiguous groups of messages in memory, the removal
// of one message at one end of our message set be replaced with the message right
// next to it.
const oldIds = existingConversation.messageIds;
let { newest, oldest } = existingConversation.metrics;
if (oldIds.length > 1) {
const firstId = oldIds[0];
const lastId = oldIds[oldIds.length - 1];
if (oldest && oldest.id === firstId && firstId === id) {
const second = messagesLookup[oldIds[1]];
oldest = second ? pick(second, ['id', 'received_at']) : undefined;
}
if (newest && newest.id === lastId && lastId === id) {
const penultimate = messagesLookup[oldIds[oldIds.length - 2]];
newest = penultimate
? pick(penultimate, ['id', 'received_at'])
: undefined;
}
}
// Removing it from our caches
const messageIds = without(existingConversation.messageIds, id);
const heightChangeMessageIds = without(
existingConversation.heightChangeMessageIds,
id
);
let metrics;
if (messageIds.length === 0) {
metrics = {
totalUnread: 0,
};
} else {
metrics = {
...existingConversation.metrics,
oldest,
newest,
};
}
return {
...state,
messagesLookup: omit(messagesLookup, id),
messagesByConversation: {
[conversationId]: {
...existingConversation,
messageIds,
heightChangeMessageIds,
metrics,
},
},
};
}
if (action.type === 'MESSAGES_ADDED') {
const { conversationId, isActive, isNewMessage, messages } = action.payload;
const { messagesByConversation, messagesLookup } = state;
const existingConversation = messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
let {
newest,
oldest,
oldestUnread,
totalUnread,
} = existingConversation.metrics;
if (messages.length < 1) {
return state;
}
const lookup = fromPairs(
existingConversation.messageIds.map(id => [id, messagesLookup[id]])
);
messages.forEach(message => {
lookup[message.id] = message;
});
const sorted = orderBy(values(lookup), ['received_at'], ['ASC']);
const messageIds = sorted.map(message => message.id);
const first = sorted[0];
const last = sorted[sorted.length - 1];
if (!newest) {
newest = pick(first, ['id', 'received_at']);
}
if (!oldest) {
oldest = pick(last, ['id', 'received_at']);
}
const existingTotal = existingConversation.messageIds.length;
if (isNewMessage && existingTotal > 0) {
const lastMessageId = existingConversation.messageIds[existingTotal - 1];
// If our messages in memory don't include the most recent messages, then we
// won't add new messages to our message list.
const haveLatest = newest && newest.id === lastMessageId;
if (!haveLatest) {
return state;
}
}
// Update oldest and newest if we receive older/newer messages (or duplicated timestamps!)
if (first && oldest && first.received_at <= oldest.received_at) {
oldest = pick(first, ['id', 'received_at']);
}
if (last && newest && last.received_at >= newest.received_at) {
newest = pick(last, ['id', 'received_at']);
}
const newIds = messages.map(message => message.id);
const newMessageIds = difference(newIds, existingConversation.messageIds);
const { isNearBottom } = existingConversation;
if ((!isNearBottom || !isActive) && !oldestUnread) {
const oldestId = newMessageIds.find(messageId => {
const message = lookup[messageId];
return Boolean(message.unread);
});
if (oldestId) {
oldestUnread = pick(lookup[oldestId], [
'id',
'received_at',
]) as MessagePointerType;
}
}
if (oldestUnread) {
const newUnread: number = newMessageIds.reduce((sum, messageId) => {
const message = lookup[messageId];
return sum + (message && message.unread ? 1 : 0);
}, 0);
totalUnread = (totalUnread || 0) + newUnread;
}
const changedIds = intersection(newIds, existingConversation.messageIds);
const heightChangeMessageIds = uniq([
...changedIds,
...existingConversation.heightChangeMessageIds,
]);
return {
...state,
messagesLookup: {
...messagesLookup,
...lookup,
},
messagesByConversation: {
...messagesByConversation,
[conversationId]: {
...existingConversation,
isLoadingMessages: false,
messageIds,
heightChangeMessageIds,
scrollToMessageId: undefined,
metrics: {
...existingConversation.metrics,
newest,
oldest,
totalUnread,
oldestUnread,
},
},
},
};
}
if (action.type === 'CLEAR_SELECTED_MESSAGE') {
return {
...state,
selectedMessage: undefined,
};
}
if (action.type === 'CLEAR_CHANGED_MESSAGES') {
const { payload } = action;
const { conversationId } = payload;
const existingConversation = state.messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
return {
...state,
messagesByConversation: {
...state.messagesByConversation,
[conversationId]: {
...existingConversation,
heightChangeMessageIds: [],
},
},
};
}
if (action.type === 'CLEAR_UNREAD_METRICS') {
const { payload } = action;
const { conversationId } = payload;
const existingConversation = state.messagesByConversation[conversationId];
if (!existingConversation) {
return state;
}
return {
...state,
messagesByConversation: {
...state.messagesByConversation,
[conversationId]: {
...existingConversation,
metrics: {
...existingConversation.metrics,
oldestUnread: undefined,
totalUnread: 0,
},
},
},
};
}
if (action.type === 'SELECTED_CONVERSATION_CHANGED') {
const { payload } = action;
const { id } = payload;
return {
...state,
selectedConversation: id,
};
}
if (action.type === 'SHOW_INBOX') {
return {
...state,
showArchived: false,
};
}
if (action.type === 'SHOW_ARCHIVED_CONVERSATIONS') {
return {
...state,
showArchived: true,
};
}
return state;
}