109 lines
3.1 KiB
JavaScript
109 lines
3.1 KiB
JavaScript
import { readFile, writeFile } from 'fs/promises';
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import { getArg } from './lib/args.js';
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import { getMany } from './lib/dl.js';
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import { error, log } from './lib/log.js';
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import { createDb, userSchema } from './lib/schema.js';
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const ctx = 'downloadDb.js';
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/**
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* Downloads all media possible for the users stored in db.json at the specified `--path`.
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* Useful for first run or for augmenting existing media
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* if it may be only partially archived in an uncertain state.
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*
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* If the db.json is missing, it will be automatically created,
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* as this depends on users being defined in the db.json and not the folders present
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* (as there could be some users whose accounts no longer exist
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* or otherwise may not be maintained by the db.json anymore)
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*/
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const downloadDb = async () => {
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log(ctx, 'Grabbing db');
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let directory = '', threadMax = 1, db;
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try {
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directory = getArg('path');
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} catch (err) {
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error(ctx, err);
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return;
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}
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try {
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threadMax = getArg('threads');
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log(ctx, `Using ${threadMax} threads`);
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} catch (err) {
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log(ctx, 'Using 1 thread');
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}
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const tryReadDb = async () => {
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let file = await readFile(`${directory}/db.json`, { encoding: 'utf8' });
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db = JSON.parse(file);
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}
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try {
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await tryReadDb();
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} catch (err) {
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if (err.toString().includes('ENOENT')) {
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try {
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log(ctx, 'Database was not yet present. Creating it now.');
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await createDb();
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await tryReadDb();
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} catch (err2) {
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error(ctx, err2);
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return;
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}
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} else {
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error(ctx, err);
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return;
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}
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}
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let processes = [];
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Object.keys(db.userList).forEach(user => {
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processes.push({
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...db.userList[user],
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user,
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lastUpdated: Date.now(),
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lastError: undefined,
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logs: [],
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})
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});
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log(ctx, `Downloading media using /<user>/media for ${processes.length} users`);
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await getMany(processes, threadMax, directory, 'media');
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const errorReadout = [];
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processes.forEach(entry => {
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entry.logs.forEach(log => {
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if (log.includes('NotFoundError')) {
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const strOut = `${entry.user} wasn't found: "${log.replace('\n', '')}". You may want to remove them from the db.json file or update their username.`;
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errorReadout.push(strOut);
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entry.lastError = strOut;
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} else if (log.includes('AuthorizationError')) {
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const strOut = `There was an authorization error for user ${entry.user}: "${log.replace('\n', '')}"`;
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errorReadout.push(strOut);
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entry.lastError = strOut;
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}
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});
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});
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log(ctx, 'Downloading media using /search');
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await getMany(processes, threadMax, directory, 'search');
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log(ctx, 'Updating the db');
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try {
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let updated = {
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...db,
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userList: {
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...db.userList,
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...Object.fromEntries(processes.map(e => [e.user, userSchema(e)])),
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},
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}
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await writeFile(`${directory}/db.json`, JSON.stringify(updated, null, 2));
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} catch (err) {
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error(ctx, err);
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return;
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}
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log(ctx, 'Collecting errors');
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errorReadout.forEach(err => error(ctx, err));
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log(ctx, 'Done');
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}
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downloadDb();
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