refactor: Rewrite to typescript

cron-runner.ts

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2025 Jakub Žitník
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+import cron from 'node-cron';
+import { exec } from 'child_process';
+import { scheduleRules, toMinutes, ScheduleRule } from './scheduleRules.js';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+function runScraper() {
+  console.log(`Running scraper at ${new Date().toLocaleString()}...`);
+  
+  let command;
+  if (process.env.NODE_ENV === 'development') {
+    const scriptPath = path.resolve(__dirname, 'scrape/scraper.ts');
+    command = `npx tsx "${scriptPath}"`;
+  } else {
+    const scriptPath = path.resolve(__dirname, 'scrape/scraper.js');
+    command = `node "${scriptPath}"`;
+  }
+  
+  exec(command, (error, stdout, stderr) => {
+    if (error) {
+      console.error(`Scraper error: ${error.message}`);
+      return;
+    }
+    if (stderr) console.error(`Scraper stderr: ${stderr}`);
+    if (stdout) console.log(`Scraper output:\n${stdout}`);
+  });
+}
+
+function createSchedules(rules: ScheduleRule[]) {
+  rules.forEach(rule => {
+    const startMin = toMinutes(rule.start);
+    const endMin = toMinutes(rule.end === "0:00" ? "24:00" : rule.end);
+    const times: { h: number; m: number }[] = [];
+
+    const adjustedEnd = endMin <= startMin ? endMin + 1440 : endMin;
+    for (let t = startMin; t < adjustedEnd; t += rule.interval) {
+      const h = Math.floor(t % 1440 / 60);
+      const m = t % 60;
+      times.push({ h, m });
+    }
+
+    times.forEach(({ h, m }) => {
+      const cronExpr = `${m} ${h} * * *`;
+      cron.schedule(cronExpr, runScraper);
+      console.log(`Scheduled: ${cronExpr}`);
+    });
+  });
+}
+
+// Run immediately at start
+runScraper();
+
+createSchedules(scheduleRules);
+
+console.log('Cron scheduler started with custom intervals.');