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// wamail sync: WhatsApp (the wa-cli daemon) <-> Maildir, one folder per chat.
//
// local -> WhatsApp (diff against the saved state):
// read every unread message of a chat -> chats.read mark one as unread -> chats.unread
// F (flag) -> messages.star / unstar delete -> local only (not downloaded again)
// WhatsApp -> local:
// new messages (backfill of the last N days the first time), media up to mediaMaxBytes,
// read/unread when the remote counter changes, names/archived state for the sidebar.
import fs from 'node:fs';
import path from 'node:path';
import { messageToEml } from '../format/mail.js';
import { writeMailboxes } from './neomutt.js';
import {
chatDirName, expandHome, loadState, saveState, scanDir, setFlags, stanzaFileId, writeMessage,
} from './store.js';
export const DEFAULTS = {
backfillDays: 30, // first time: messages from the last N days...
backfillLimit: 100, // ...and at most N per chat
fetchLimit: 50,
mediaMaxBytes: 16 * 1024 * 1024,
skipChats: [], // JIDs to ignore
};
const SKIP_TYPES = new Set([
'e2e_notification', 'notification_template', 'notification', 'gp2', 'protocol', 'ciphertext',
'broadcast_notification', 'debug', 'unknown', 'reaction', 'revoked',
]);
const SUPPORTED_CHAT = /@(c\.us|g\.us|lid)$/;
export function wamailConfig(account, cfg = {}) {
return {
maildir: account === 'default' ? '~/Mail/whatsapp' : `~/Mail/whatsapp-${account}`,
...DEFAULTS,
...cfg,
};
}
const flagString = (flags) => [...flags].filter((f) => f === 'S' || f === 'F').sort().join('');
// Message deleted for everyone: remove the local copy and do not download it again.
export function dropLocal({ account, config, stanzaId }) {
const state = loadState(account);
const fid = stanzaFileId(stanzaId);
const sm = state.msgs[fid];
if (!sm) return false;
const dir = state.chats[sm.chat]?.dir;
const entry = dir && scanDir(path.join(expandHome(config.maildir), dir))[fid];
if (entry) fs.rmSync(entry.path, { force: true });
state.tombstones[fid] = sm;
delete state.msgs[fid];
saveState(account, state);
return true;
}
export async function syncAccount({ account, rpc, config, onlyChat, log = () => {}, now = Date.now }) {
const root = expandHome(config.maildir);
const state = loadState(account);
const nowSec = Math.floor(now() / 1000);
const skipped = (id) => !SUPPORTED_CHAT.test(id) || config.skipChats.includes(id);
const stats = { nuevos: 0, leidos: 0, noLeidos: 0, estrellas: 0, borrados: 0 };
// ---- chats remotos
const remote = (onlyChat ? [await rpc('chats.get', { chatId: onlyChat })] : await rpc('chats.list', {}))
.filter((c) => !skipped(c.id));
const scope = new Set(onlyChat ? remote.map((c) => c.id) : [...remote.map((c) => c.id), ...Object.keys(state.chats)]);
try {
const me = (await rpc('auth.status', {})).me;
if (me?.id) state.me = me;
} catch { /* not critical */ }
// ---- escaneo local
const local = {};
const scanChat = (chatId) => {
const st = state.chats[chatId];
if (!st?.dir) return {};
const dir = path.join(root, st.dir);
const found = scanDir(dir);
for (const [fid, e] of Object.entries(found)) local[fid] = { ...e, chat: chatId, dir };
return found;
};
for (const id of scope) scanChat(id);
for (const fid of Object.keys(local)) {
if (state.tombstones[fid]) {
// deleted by mistake (e.g. a race with neomutt): the file is still there
state.msgs[fid] = state.tombstones[fid];
delete state.tombstones[fid];
}
}
// ---- push: cambios locales -> WhatsApp
const failed = new Set();
const touched = new Map(); // chatId -> 'read' | 'unread'
const perChat = new Map();
for (const [fid, sm] of Object.entries(state.msgs)) {
if (!scope.has(sm.chat)) continue;
let loc = local[fid];
if (!loc) {
loc = scanChat(sm.chat)[fid] && local[fid]; // second attempt before treating it as deleted
}
if (!loc || loc.flags.has('T')) {
if (loc) fs.rmSync(loc.path, { force: true });
state.tombstones[fid] = sm;
delete state.msgs[fid];
delete local[fid];
stats.borrados++;
continue;
}
const agg = perChat.get(sm.chat) ?? { had: 0, now: 0, becameUnread: false };
perChat.set(sm.chat, agg);
const wasSeen = sm.fl.includes('S');
const isSeen = loc.flags.has('S');
if (!sm.fromMe) {
if (!wasSeen) agg.had++;
if (!isSeen) agg.now++;
if (wasSeen && !isSeen) agg.becameUnread = true;
}
if (sm.fl.includes('F') !== loc.flags.has('F')) {
try {
await rpc(loc.flags.has('F') ? 'messages.star' : 'messages.unstar', { messageId: sm.id });
stats.estrellas++;
} catch (e) {
log(`could not change the star of ${fid}: ${e.message}`);
failed.add(fid);
}
}
}
for (const [chatId, agg] of perChat) {
const name = state.chats[chatId]?.name ?? chatId;
try {
if (agg.becameUnread) {
await rpc('chats.unread', { chatId });
touched.set(chatId, 'unread');
stats.noLeidos++;
log(`${name}: marked as unread`);
} else if (agg.had > 0 && agg.now === 0) {
await rpc('chats.read', { chatId });
touched.set(chatId, 'read');
stats.leidos++;
log(`${name}: marked as read`);
}
} catch (e) {
log(`${name}: could not sync read state: ${e.message}`);
for (const [fid, sm] of Object.entries(state.msgs)) if (sm.chat === chatId) failed.add(fid);
}
}
// ---- pull: WhatsApp -> local
const takenDirs = () => new Set(Object.values(state.chats).map((c) => c.dir).filter(Boolean));
for (const c of remote) {
const isNew = !state.chats[c.id];
const st = (state.chats[c.id] ||= { dir: null, lastTs: 0, unread: null });
Object.assign(st, { name: c.name, isGroup: c.isGroup, archived: c.archived, pinned: c.pinned, timestamp: c.timestamp });
let msgs = [];
try {
if (isNew || !st.lastTs) {
const cutoff = nowSec - config.backfillDays * 86400;
if ((c.timestamp ?? 0) >= cutoff) {
msgs = (await rpc('messages.list', { chatId: c.id, limit: config.backfillLimit }))
.filter((m) => m.timestamp >= cutoff);
}
} else if ((c.timestamp ?? 0) > st.lastTs || onlyChat) {
msgs = await rpc('messages.list', { chatId: c.id, since: st.lastTs, limit: config.fetchLimit });
}
} catch (e) {
log(`${c.name}: could not fetch messages: ${e.message}`);
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