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feat: add granular auto-backup scheduling and timezone support

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Add UI controls for configuring auto-backup schedule with hour, day of
week, and day of month pickers. The hour picker respects the user's
12h/24h time format preference from settings.

Add TZ environment variable support via docker-compose so the container
runs in the configured timezone. The timezone is passed to node-cron for
accurate scheduling and exposed via the API so the UI displays it.

Fix SQLite UTC timestamp handling by appending Z suffix to all timestamps
sent to the client, ensuring proper timezone conversion in the browser.

Made-with: Cursor
This commit is contained in:
Andrei Brebene
2026-03-30 12:24:02 +03:00
parent f1c4155d81
commit cc8be328f9
14 changed files with 225 additions and 43 deletions
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server/src/scheduler.ts
+32 -13
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@@ -8,30 +8,48 @@ const backupsDir = path.join(dataDir, 'backups');
const uploadsDir = path.join(__dirname, '../uploads');
const settingsFile = path.join(dataDir, 'backup-settings.json');
const CRON_EXPRESSIONS: Record<string, string> = {
hourly: '0 * * * *',
daily: '0 2 * * *',
weekly: '0 2 * * 0',
monthly: '0 2 1 * *',
};
const VALID_INTERVALS = Object.keys(CRON_EXPRESSIONS);
const VALID_INTERVALS = ['hourly', 'daily', 'weekly', 'monthly'];
const VALID_DAYS_OF_WEEK = [0, 1, 2, 3, 4, 5, 6]; // 0=Sunday
const VALID_HOURS = Array.from({ length: 24 }, (_, i) => i);
interface BackupSettings {
enabled: boolean;
interval: string;
keep_days: number;
hour: number;
day_of_week: number;
day_of_month: number;
}
function buildCronExpression(settings: BackupSettings): string {
const hour = VALID_HOURS.includes(settings.hour) ? settings.hour : 2;
const dow = VALID_DAYS_OF_WEEK.includes(settings.day_of_week) ? settings.day_of_week : 0;
const dom = settings.day_of_month >= 1 && settings.day_of_month <= 28 ? settings.day_of_month : 1;
switch (settings.interval) {
case 'hourly': return '0 * * * *';
case 'daily': return `0 ${hour} * * *`;
case 'weekly': return `0 ${hour} * * ${dow}`;
case 'monthly': return `0 ${hour} ${dom} * *`;
default: return `0 ${hour} * * *`;
}
}
let currentTask: ScheduledTask | null = null;
function getDefaults(): BackupSettings {
return { enabled: false, interval: 'daily', keep_days: 7, hour: 2, day_of_week: 0, day_of_month: 1 };
}
function loadSettings(): BackupSettings {
let settings = getDefaults();
try {
if (fs.existsSync(settingsFile)) {
return JSON.parse(fs.readFileSync(settingsFile, 'utf8'));
const saved = JSON.parse(fs.readFileSync(settingsFile, 'utf8'));
settings = { ...settings, ...saved };
}
} catch (e) {}
return { enabled: false, interval: 'daily', keep_days: 7 };
return settings;
}
function saveSettings(settings: BackupSettings): void {
@@ -104,9 +122,10 @@ function start(): void {
return;
}
const expression = CRON_EXPRESSIONS[settings.interval] || CRON_EXPRESSIONS.daily;
currentTask = cron.schedule(expression, runBackup);
console.log(`[Auto-Backup] Scheduled: ${settings.interval} (${expression}), retention: ${settings.keep_days === 0 ? 'forever' : settings.keep_days + ' days'}`);
const expression = buildCronExpression(settings);
const tz = process.env.TZ || 'UTC';
currentTask = cron.schedule(expression, runBackup, { timezone: tz });
console.log(`[Auto-Backup] Scheduled: ${settings.interval} (${expression}), tz: ${tz}, retention: ${settings.keep_days === 0 ? 'forever' : settings.keep_days + ' days'}`);
}
// Demo mode: hourly reset of demo user data