import { CronJob } from "cron";

import { config as serverConfig } from "../config";
import { Logger } from "../utils/logger";
import { db } from "../databases/databases";
import { DBSegment } from "../types/segments.model";

const jobConfig = serverConfig?.crons?.downvoteSegmentArchive;

export const archiveDownvoteSegment = async (dayLimit: number, voteLimit: number, runTime?: number): Promise<number> => {
    const timeNow = runTime || new Date().getTime();
    const threshold = dayLimit * 86400000;

    Logger.info(`DownvoteSegmentArchiveJob starts at ${timeNow}`);
    try {
    // insert into archive sponsorTime
    await db.prepare(
        "run",
        `INSERT INTO "archivedSponsorTimes" 
        SELECT * 
        FROM "sponsorTimes" 
        WHERE "votes" < ? AND (? - "timeSubmitted") > ?`,
        [
            voteLimit,
            timeNow,
            threshold
        ]
    ) as DBSegment[];

    } catch (err) {
        Logger.error("Execption when insert segment in archivedSponsorTimes");
        Logger.error(err as string);
        return 1;
    }

    // remove from sponsorTime
    try {
    await db.prepare(
        "run",
        'DELETE FROM "sponsorTimes" WHERE "votes" < ? AND (? - "timeSubmitted") > ?',
        [
            voteLimit,
            timeNow,
            threshold
        ]
    ) as DBSegment[];

    } catch (err) {
        Logger.error("Execption when deleting segment in sponsorTimes");
        Logger.error(err as string);
        return 1;
    }

    Logger.info("DownvoteSegmentArchiveJob finished");
    return 0;
};

const DownvoteSegmentArchiveJob = new CronJob(
    jobConfig?.schedule || "0 0 * * * 0",
    () => void archiveDownvoteSegment(jobConfig?.timeThresholdInDays, jobConfig?.voteThreshold)
);

if (serverConfig?.crons?.enabled && jobConfig && !jobConfig.schedule) {
    Logger.error("Invalid cron schedule for downvoteSegmentArchive");
}

export default DownvoteSegmentArchiveJob;