refactor: reduce responsability of individual parts

resources/ts/lib/tasks.ts

@@ -0,0 +1,30 @@
+import type { RawTask, Task } from "@/types";
+import CronExpressionParser from "cron-parser";
+
+export function parseTask(task: RawTask): Task {
+    return {
+        id: task.id,
+        name: task.name,
+        reset_cron: task.reset_cron,
+        check_date: task.check_date ? new Date(task.check_date) : null,
+        previous_check_date: task.previous_check_date
+            ? new Date(task.previous_check_date)
+            : null,
+    };
+}
+
+export function taskCompleted(task: Task): boolean {
+    if (task.check_date === null) {
+        return false;
+    }
+    if (task.reset_cron === null) {
+        return true;
+    }
+    try {
+        const interval = CronExpressionParser.parse(task.reset_cron, {currentDate: task.check_date});
+        const nextDate = interval.next();
+        return nextDate.getTime() > (new Date()).getTime();
+    } catch {
+        return false;
+    }
+}