initial

src/scheduler.ts

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+import { config } from "./config.js";
+import { listUpcomingDeadlines } from "./contractsStore.js";
+import { createLogger } from "./logger.js";
+import { sendDeadlineNotifications } from "./notifications.js";
+import { getRuntimeSettings } from "./runtimeSettings.js";
+
+const logger = createLogger(config.logLevel);
+
+export class DeadlineMonitor {
+  private timer: NodeJS.Timeout | null = null;
+  private running = false;
+
+  start() {
+    if (this.running) {
+      return;
+    }
+    this.running = true;
+    const settings = getRuntimeSettings();
+    logger.info(
+      `Starting deadline monitor (interval=${settings.schedulerIntervalMinutes} min, alert window=${settings.alertDaysBefore} days)`
+    );
+    this.scheduleNext(1000);
+  }
+
+  stop() {
+    if (!this.running) {
+      return;
+    }
+    this.running = false;
+    if (this.timer) {
+      clearTimeout(this.timer);
+      this.timer = null;
+    }
+    logger.info("Deadline monitor stopped.");
+  }
+
+  private scheduleNext(delayMs?: number) {
+    if (!this.running) {
+      return;
+    }
+    const settings = getRuntimeSettings();
+    const intervalMs = Math.max(settings.schedulerIntervalMinutes, 5) * 60 * 1000;
+    const wait = delayMs ?? intervalMs;
+
+    this.timer = setTimeout(() => {
+      this.runCheck()
+        .catch((error) => {
+          logger.error("Deadline check failed", error);
+        })
+        .finally(() => {
+          this.scheduleNext();
+        });
+    }, wait);
+  }
+
+  private async runCheck() {
+    const settings = getRuntimeSettings();
+    const deadlines = listUpcomingDeadlines(settings.alertDaysBefore);
+
+    if (deadlines.length === 0) {
+      logger.debug("No upcoming deadlines within alert window.");
+      return;
+    }
+
+    const lines = deadlines.map(
+      (item) =>
+        `${item.title} (#${item.id}) — cancel by ${item.terminationDeadline} (${item.daysUntilDeadline} days left)`
+    );
+
+    for (const item of deadlines) {
+      logger.warn(
+        "Upcoming deadline: %s (provider=%s, documentId=%s, terminate by %s, days=%s)",
+        item.title,
+        item.provider ?? "n/a",
+        item.paperlessDocumentId ?? "n/a",
+        item.terminationDeadline ?? "n/a",
+        item.daysUntilDeadline ?? "n/a"
+      );
+    }
+
+    await sendDeadlineNotifications("Contract termination reminder", lines, settings);
+  }
+}
+
+export const deadlineMonitor = new DeadlineMonitor();