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 taskNextReset(task: Task): Date | null {
    if (task.check_date === null || task.reset_cron === null) {
        return null;
    }
    try {
        const interval = CronExpressionParser.parse(task.reset_cron, {currentDate: task.check_date});
        return interval.next().toDate();
    } catch {
        return null;
    }
}

export function taskCompleted(task: Task): boolean {
    const nextReset = taskNextReset(task);
    if (nextReset === null) {
        return task.check_date !== null;
    }
    return nextReset.getTime() > (new Date()).getTime();
}