zulip/static/js/pm_conversations.js

112 lines
3.5 KiB
JavaScript

import {FoldDict} from "./fold_dict";
import * as muted_users from "./muted_users";
import * as people from "./people";
const partners = new Set();
export function set_partner(user_id) {
partners.add(user_id);
}
export function is_partner(user_id) {
return partners.has(user_id);
}
function filter_muted_pms(conversation) {
// We hide muted users from the top left corner, as well as those huddles
// in which all participants are muted.
const recipients = conversation.user_ids_string.split(",").map((id) => Number.parseInt(id, 10));
if (recipients.every((id) => muted_users.is_user_muted(id))) {
return false;
}
return true;
}
class RecentPrivateMessages {
// This data structure keeps track of the sets of users you've had
// recent conversations with, sorted by time (implemented via
// `message_id` sorting, since that's how we time-sort messages).
recent_message_ids = new FoldDict(); // key is user_ids_string
recent_private_messages = [];
insert(user_ids, message_id) {
if (user_ids.length === 0) {
// The server sends [] for self-PMs.
user_ids = [people.my_current_user_id()];
}
user_ids.sort((a, b) => a - b);
const user_ids_string = user_ids.join(",");
let conversation = this.recent_message_ids.get(user_ids_string);
if (conversation === undefined) {
// This is a new user, so create a new object.
conversation = {
user_ids_string,
max_message_id: message_id,
};
this.recent_message_ids.set(user_ids_string, conversation);
// Optimistically insert the new message at the front, since that
// is usually where it belongs, but we'll re-sort.
this.recent_private_messages.unshift(conversation);
} else {
if (conversation.max_message_id >= message_id) {
// don't backdate our conversation. This is the
// common code path after initialization when
// processing old messages, since we'll already have
// the latest message_id for the conversation from
// initialization.
return;
}
// update our latest message_id
conversation.max_message_id = message_id;
}
this.recent_private_messages.sort((a, b) => b.max_message_id - a.max_message_id);
}
get() {
// returns array of structs with user_ids_string and
// message_id
return this.recent_private_messages.filter((pm) => filter_muted_pms(pm));
}
get_strings() {
// returns array of structs with user_ids_string and
// message_id
return this.recent_private_messages
.filter((pm) => filter_muted_pms(pm))
.map((conversation) => conversation.user_ids_string);
}
initialize(params) {
for (const conversation of params.recent_private_conversations) {
this.insert(conversation.user_ids, conversation.max_message_id);
}
}
}
export let recent = new RecentPrivateMessages();
export function process_message(message) {
const user_ids = people.pm_with_user_ids(message);
if (!user_ids) {
return;
}
for (const user_id of user_ids) {
set_partner(user_id);
}
recent.insert(user_ids, message.id);
}
export function clear_for_testing() {
recent = new RecentPrivateMessages();
partners.clear();
}