Merge ea97159b75 into 459fb138f2

This reverts commit 949198d09e.

docker/debian-base.dockerfile

@@ -1,3 +1,13 @@
+# Download Apprise deb package
+FROM node:20-bookworm-slim AS download-apprise
+WORKDIR /app
+COPY ./extra/download-apprise.mjs ./download-apprise.mjs
+RUN apt update && \
+    apt --yes --no-install-recommends install curl && \
+    npm install cheerio semver && \
+    node ./download-apprise.mjs
+
+# Base Image (Slim)
 # If the image changed, the second stage image should be changed too
 FROM node:20-bookworm-slim AS base2-slim
 ARG TARGETPLATFORM
@@ -27,8 +37,9 @@ RUN apt update && \
 # apprise = for notifications (Install from the deb package, as the stable one is too old) (workaround for #4867)
 # Switching to testing repo is no longer working, as the testing repo is not bookworm anymore.
 # python3-paho-mqtt (#4859)
-RUN curl http://ftp.debian.org/debian/pool/main/a/apprise/apprise_1.8.0-2_all.deb --output apprise.deb && \
-    apt update && \
+# TODO: no idea how to delete the deb file after installation as it becomes a layer already
+COPY --from=download-apprise /app/apprise.deb ./apprise.deb
+RUN apt update && \
     apt --yes --no-install-recommends install ./apprise.deb python3-paho-mqtt && \
     rm -rf /var/lib/apt/lists/* && \
     rm -f apprise.deb && \

extra/download-apprise.mjs

@@ -0,0 +1,57 @@
+// Go to http://ftp.debian.org/debian/pool/main/a/apprise/ using fetch api, where it is a apache directory listing page
+// Use cheerio to parse the html and get the latest version of Apprise
+// call curl to download the latest version of Apprise
+// Target file: the latest version of Apprise, which the format is apprise_{VERSION}_all.deb
+
+import * as cheerio from "cheerio";
+import semver from "semver";
+import * as childProcess from "child_process";
+
+const baseURL = "http://ftp.debian.org/debian/pool/main/a/apprise/";
+const response = await fetch(baseURL);
+
+if (!response.ok) {
+    throw new Error("Failed to fetch page of Apprise Debian repository.");
+}
+
+const html = await response.text();
+
+const $ = cheerio.load(html);
+
+// Get all the links in the page
+const linkElements = $("a");
+
+// Filter the links which match apprise_{VERSION}_all.deb
+const links = [];
+const pattern = /apprise_(.*?)_all.deb/;
+
+for (let i = 0; i < linkElements.length; i++) {
+    const link = linkElements[i];
+    if (link.attribs.href.match(pattern) && !link.attribs.href.includes("~")) {
+        links.push({
+            filename: link.attribs.href,
+            version: link.attribs.href.match(pattern)[1],
+        });
+    }
+}
+
+console.log(links);
+
+// semver compare and download
+let latestLink = {
+    filename: "",
+    version: "0.0.0",
+};
+
+for (const link of links) {
+    if (semver.gt(link.version, latestLink.version)) {
+        latestLink = link;
+    }
+}
+
+const downloadURL = baseURL + latestLink.filename;
+console.log(`Downloading ${downloadURL}...`);
+let result = childProcess.spawnSync("curl", [ downloadURL, "--output", "apprise.deb" ]);
+console.log(result.stdout?.toString());
+console.error(result.stderr?.toString());
+process.exit(result.status !== null ? result.status : 1);

extra/reset-migrate-aggregate-table-state.js

@@ -0,0 +1,24 @@
+const { R } = require("redbean-node");
+const Database = require("../server/database");
+const args = require("args-parser")(process.argv);
+const { Settings } = require("../server/settings");
+
+const main = async () => {
+    console.log("Connecting the database");
+    Database.initDataDir(args);
+    await Database.connect(false, false, true);
+
+    console.log("Deleting all data from aggregate tables");
+    await R.exec("DELETE FROM stat_minutely");
+    await R.exec("DELETE FROM stat_hourly");
+    await R.exec("DELETE FROM stat_daily");
+
+    console.log("Resetting the aggregate table state");
+    await Settings.set("migrateAggregateTableState", "");
+
+    await Database.close();
+    console.log("Done");
+};
+
+main();
+

package.json

@@ -38,8 +38,8 @@
         "build-docker-base": "docker buildx build -f docker/debian-base.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:base2 --target base2 . --push",
         "build-docker-base-slim": "docker buildx build -f docker/debian-base.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:base2-slim --target base2-slim . --push",
         "build-docker-builder-go": "docker buildx build -f docker/builder-go.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:builder-go . --push",
-        "build-docker-slim": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-slim -t louislam/uptime-kuma:$VERSION-slim --target release --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
-        "build-docker-full": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2 -t louislam/uptime-kuma:$VERSION --target release . --push",
+        "build-docker-slim": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:next-slim -t louislam/uptime-kuma:2-slim -t louislam/uptime-kuma:$VERSION-slim --target release --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
+        "build-docker-full": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:next -t louislam/uptime-kuma:2 -t louislam/uptime-kuma:$VERSION --target release . --push",
         "build-docker-nightly": "node ./extra/test-docker.js && npm run build && docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:nightly2 --target nightly . --push",
         "build-docker-slim-rootless": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-slim-rootless -t louislam/uptime-kuma:$VERSION-slim-rootless --target rootless --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
         "build-docker-full-rootless": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-rootless -t louislam/uptime-kuma:$VERSION-rootless --target rootless . --push",
@@ -68,7 +68,8 @@
         "sort-contributors": "node extra/sort-contributors.js",
         "quick-run-nightly": "docker run --rm --env NODE_ENV=development -p 3001:3001 louislam/uptime-kuma:nightly2",
         "start-dev-container": "cd docker && docker-compose -f docker-compose-dev.yml up --force-recreate",
-        "rebase-pr-to-1.23.X": "node extra/rebase-pr.js 1.23.X"
+        "rebase-pr-to-1.23.X": "node extra/rebase-pr.js 1.23.X",
+        "reset-migrate-aggregate-table-state": "node extra/reset-migrate-aggregate-table-state.js"
     },
     "dependencies": {
         "@grpc/grpc-js": "~1.8.22",

server/database.js

@@ -6,6 +6,9 @@ const knex = require("knex");
 const path = require("path");
 const { EmbeddedMariaDB } = require("./embedded-mariadb");
 const mysql = require("mysql2/promise");
+const { Settings } = require("./settings");
+const { UptimeCalculator } = require("./uptime-calculator");
+const dayjs = require("dayjs");
 
 /**
  * Database & App Data Folder
@@ -391,9 +394,23 @@ class Database {
         // https://knexjs.org/guide/migrations.html
         // https://gist.github.com/NigelEarle/70db130cc040cc2868555b29a0278261
         try {
+            // Disable foreign key check for SQLite
+            // Known issue of knex: https://github.com/drizzle-team/drizzle-orm/issues/1813
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = OFF");
+            }
+
             await R.knex.migrate.latest({
                 directory: Database.knexMigrationsPath,
             });
+
+            // Enable foreign key check for SQLite
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = ON");
+            }
+
+            await this.migrateAggregateTable();
+
         } catch (e) {
             // Allow missing patch files for downgrade or testing pr.
             if (e.message.includes("the following files are missing:")) {
@@ -711,6 +728,152 @@ class Database {
         }
     }
 
+    /**
+     * Migrate the old data in the heartbeat table to the new format (stat_daily, stat_hourly, stat_minutely)
+     * It should be run once while upgrading V1 to V2
+     *
+     * Normally, it should be in transaction, but UptimeCalculator wasn't designed to be in transaction before that.
+     * I don't want to heavily modify the UptimeCalculator, so it is not in transaction.
+     * Run `npm run reset-migrate-aggregate-table-state` to reset, in case the migration is interrupted.
+     * @returns {Promise<void>}
+     */
+    static async migrateAggregateTable() {
+        log.debug("db", "Enter Migrate Aggregate Table function");
+
+        // Add a setting for 2.0.0-dev users to skip this migration
+        if (process.env.SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE === "1") {
+            log.warn("db", "SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE is set to 1, skipping aggregate table migration forever (for 2.0.0-dev users)");
+            await Settings.set("migrateAggregateTableState", "migrated");
+        }
+
+        let migrateState = await Settings.get("migrateAggregateTableState");
+
+        // Skip if already migrated
+        // If it is migrating, it possibly means the migration was interrupted, or the migration is in progress
+        if (migrateState === "migrated") {
+            log.debug("db", "Migrated aggregate table already, skip");
+            return;
+        } else if (migrateState === "migrating") {
+            log.warn("db", "Aggregate table migration is already in progress, or it was interrupted");
+            throw new Error("Aggregate table migration is already in progress");
+        }
+
+        await Settings.set("migrateAggregateTableState", "migrating");
+
+        log.info("db", "Migrating Aggregate Table");
+
+        log.info("db", "Getting list of unique monitors");
+
+        // Get a list of unique monitors from the heartbeat table, using raw sql
+        let monitors = await R.getAll(`
+            SELECT DISTINCT monitor_id
+            FROM heartbeat
+            ORDER BY monitor_id ASC
+        `);
+
+        // Stop if stat_* tables are not empty
+        for (let table of [ "stat_minutely", "stat_hourly", "stat_daily" ]) {
+            let countResult = await R.getRow(`SELECT COUNT(*) AS count FROM ${table}`);
+            let count = countResult.count;
+            if (count > 0) {
+                log.warn("db", `Aggregate table ${table} is not empty, migration will not be started (Maybe you were using 2.0.0-dev?)`);
+                return;
+            }
+        }
+
+        let progressPercent = 0;
+        let part = 100 / monitors.length;
+        let i = 1;
+        for (let monitor of monitors) {
+            // Get a list of unique dates from the heartbeat table, using raw sql
+            let dates = await R.getAll(`
+                SELECT DISTINCT DATE(time) AS date
+                FROM heartbeat
+                WHERE monitor_id = ?
+                ORDER BY date ASC
+            `, [
+                monitor.monitor_id
+            ]);
+
+            for (let date of dates) {
+                // New Uptime Calculator
+                let calculator = new UptimeCalculator();
+                calculator.monitorID = monitor.monitor_id;
+                calculator.setMigrationMode(true);
+
+                // Get all the heartbeats for this monitor and date
+                let heartbeats = await R.getAll(`
+                    SELECT status, ping, time
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    AND DATE(time) = ?
+                    ORDER BY time ASC
+                `, [ monitor.monitor_id, date.date ]);
+
+                if (heartbeats.length > 0) {
+                    log.info("db", `[DON'T STOP] Migrating monitor data ${monitor.monitor_id} - ${date.date} [${progressPercent.toFixed(2)}%][${i}/${monitors.length}]`);
+                }
+
+                for (let heartbeat of heartbeats) {
+                    await calculator.update(heartbeat.status, parseFloat(heartbeat.ping), dayjs(heartbeat.time));
+                }
+
+                progressPercent += (Math.round(part / dates.length * 100) / 100);
+
+                // Lazy to fix the floating point issue, it is acceptable since it is just a progress bar
+                if (progressPercent > 100) {
+                    progressPercent = 100;
+                }
+            }
+
+            i++;
+        }
+
+        await Database.clearHeartbeatData(true);
+
+        await Settings.set("migrateAggregateTableState", "migrated");
+
+        if (monitors.length > 0) {
+            log.info("db", "Aggregate Table Migration Completed");
+        } else {
+            log.info("db", "No data to migrate");
+        }
+    }
+
+    /**
+     * Remove all non-important heartbeats from heartbeat table, keep last 24-hour or {KEEP_LAST_ROWS} rows for each monitor
+     * @param {boolean} detailedLog Log detailed information
+     * @returns {Promise<void>}
+     */
+    static async clearHeartbeatData(detailedLog = false) {
+        let monitors = await R.getAll("SELECT id FROM monitor");
+        const sqlHourOffset = Database.sqlHourOffset();
+
+        for (let monitor of monitors) {
+            if (detailedLog) {
+                log.info("db", "Deleting non-important heartbeats for monitor " + monitor.id);
+            }
+            await R.exec(`
+                DELETE FROM heartbeat
+                WHERE monitor_id = ?
+                AND important = 0
+                AND time < ${sqlHourOffset}
+                AND id NOT IN (
+                    SELECT id
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT ?
+                )
+            `, [
+                monitor.id,
+                -24,
+                monitor.id,
+                100,
+            ]);
+        }
+    }
+
 }
 
 module.exports = Database;

server/jobs/clear-old-data.js

@@ -1,21 +1,22 @@
 const { R } = require("redbean-node");
 const { log } = require("../../src/util");
-const { setSetting, setting } = require("../util-server");
 const Database = require("../database");
+const { Settings } = require("../settings");
+const dayjs = require("dayjs");
 
-const DEFAULT_KEEP_PERIOD = 180;
+const DEFAULT_KEEP_PERIOD = 365;
 
 /**
- * Clears old data from the heartbeat table of the database.
+ * Clears old data from the heartbeat table and the stat_daily of the database.
  * @returns {Promise<void>} A promise that resolves when the data has been cleared.
  */
-
 const clearOldData = async () => {
-    let period = await setting("keepDataPeriodDays");
+    await Database.clearHeartbeatData();
+    let period = await Settings.get("keepDataPeriodDays");
 
     // Set Default Period
     if (period == null) {
-        await setSetting("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
         period = DEFAULT_KEEP_PERIOD;
     }
 
@@ -25,23 +26,28 @@ const clearOldData = async () => {
         parsedPeriod = parseInt(period);
     } catch (_) {
         log.warn("clearOldData", "Failed to parse setting, resetting to default..");
-        await setSetting("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
         parsedPeriod = DEFAULT_KEEP_PERIOD;
     }
 
     if (parsedPeriod < 1) {
         log.info("clearOldData", `Data deletion has been disabled as period is less than 1. Period is ${parsedPeriod} days.`);
     } else {
-
         log.debug("clearOldData", `Clearing Data older than ${parsedPeriod} days...`);
-
         const sqlHourOffset = Database.sqlHourOffset();
 
         try {
-            await R.exec(
-                "DELETE FROM heartbeat WHERE time < " + sqlHourOffset,
-                [ parsedPeriod * -24 ]
-            );
+            // Heartbeat
+            await R.exec("DELETE FROM heartbeat WHERE time < " + sqlHourOffset, [
+                parsedPeriod * -24,
+            ]);
+
+            let timestamp = dayjs().subtract(parsedPeriod, "day").utc().startOf("day").unix();
+
+            // stat_daily
+            await R.exec("DELETE FROM stat_daily WHERE timestamp < ? ", [
+                timestamp,
+            ]);
 
             if (Database.dbConfig.type === "sqlite") {
                 await R.exec("PRAGMA optimize;");
@@ -50,6 +56,8 @@ const clearOldData = async () => {
             log.error("clearOldData", `Failed to clear old data: ${e.message}`);
         }
     }
+
+    log.debug("clearOldData", "Data cleared.");
 };
 
 module.exports = {

server/server.js

@@ -1604,18 +1604,20 @@ let needSetup = false;
 
     await server.start();
 
-    server.httpServer.listen(port, hostname, () => {
+    server.httpServer.listen(port, hostname, async () => {
         if (hostname) {
             log.info("server", `Listening on ${hostname}:${port}`);
         } else {
             log.info("server", `Listening on ${port}`);
         }
-        startMonitors();
+        await startMonitors();
+
+        // Put this here. Start background jobs after the db and server is ready to prevent clear up during db migration.
+        await initBackgroundJobs();
+
         checkVersion.startInterval();
     });
 
-    await initBackgroundJobs();
-
     // Start cloudflared at the end if configured
     await cloudflaredAutoStart(cloudflaredToken);
 
@@ -1809,7 +1811,11 @@ async function startMonitors() {
     }
 
     for (let monitor of list) {
-        await monitor.start(io);
+        try {
+            await monitor.start(io);
+        } catch (e) {
+            log.error("monitor", e);
+        }
         // Give some delays, so all monitors won't make request at the same moment when just start the server.
         await sleep(getRandomInt(300, 1000));
     }

server/uptime-calculator.js

@@ -12,7 +12,6 @@ class UptimeCalculator {
      * @private
      * @type {{string:UptimeCalculator}}
      */
-
     static list = {};
 
     /**
@@ -55,6 +54,15 @@ class UptimeCalculator {
     lastHourlyStatBean = null;
     lastMinutelyStatBean = null;
 
+    /**
+     * For migration purposes.
+     * @type {boolean}
+     */
+    migrationMode = false;
+
+    statMinutelyKeepHour = 24;
+    statHourlyKeepDay = 30;
+
     /**
      * Get the uptime calculator for a monitor
      * Initializes and returns the monitor if it does not exist
@@ -189,16 +197,19 @@ class UptimeCalculator {
     /**
      * @param {number} status status
      * @param {number} ping Ping
+     * @param {dayjs.Dayjs} date Date (Only for migration)
      * @returns {dayjs.Dayjs} date
      * @throws {Error} Invalid status
      */
-    async update(status, ping = 0) {
-        let date = this.getCurrentDate();
+    async update(status, ping = 0, date) {
+        if (!date) {
+            date = this.getCurrentDate();
+        }
 
         let flatStatus = this.flatStatus(status);
 
         if (flatStatus === DOWN && ping > 0) {
-            log.warn("uptime-calc", "The ping is not effective when the status is DOWN");
+            log.debug("uptime-calc", "The ping is not effective when the status is DOWN");
         }
 
         let divisionKey = this.getMinutelyKey(date);
@@ -297,47 +308,61 @@ class UptimeCalculator {
         }
         await R.store(dailyStatBean);
 
-        let hourlyStatBean = await this.getHourlyStatBean(hourlyKey);
-        hourlyStatBean.up = hourlyData.up;
-        hourlyStatBean.down = hourlyData.down;
-        hourlyStatBean.ping = hourlyData.avgPing;
-        hourlyStatBean.pingMin = hourlyData.minPing;
-        hourlyStatBean.pingMax = hourlyData.maxPing;
-        {
-            // eslint-disable-next-line no-unused-vars
-            const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = hourlyData;
-            if (Object.keys(extras).length > 0) {
-                hourlyStatBean.extras = JSON.stringify(extras);
+        let currentDate = this.getCurrentDate();
+
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 30-day's hourly data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statHourlyKeepDay, "day"))) {
+            let hourlyStatBean = await this.getHourlyStatBean(hourlyKey);
+            hourlyStatBean.up = hourlyData.up;
+            hourlyStatBean.down = hourlyData.down;
+            hourlyStatBean.ping = hourlyData.avgPing;
+            hourlyStatBean.pingMin = hourlyData.minPing;
+            hourlyStatBean.pingMax = hourlyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = hourlyData;
+                if (Object.keys(extras).length > 0) {
+                    hourlyStatBean.extras = JSON.stringify(extras);
+                }
             }
+            await R.store(hourlyStatBean);
         }
-        await R.store(hourlyStatBean);
 
-        let minutelyStatBean = await this.getMinutelyStatBean(divisionKey);
-        minutelyStatBean.up = minutelyData.up;
-        minutelyStatBean.down = minutelyData.down;
-        minutelyStatBean.ping = minutelyData.avgPing;
-        minutelyStatBean.pingMin = minutelyData.minPing;
-        minutelyStatBean.pingMax = minutelyData.maxPing;
-        {
-            // eslint-disable-next-line no-unused-vars
-            const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = minutelyData;
-            if (Object.keys(extras).length > 0) {
-                minutelyStatBean.extras = JSON.stringify(extras);
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 24-hour's minutely data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statMinutelyKeepHour, "hour"))) {
+            let minutelyStatBean = await this.getMinutelyStatBean(divisionKey);
+            minutelyStatBean.up = minutelyData.up;
+            minutelyStatBean.down = minutelyData.down;
+            minutelyStatBean.ping = minutelyData.avgPing;
+            minutelyStatBean.pingMin = minutelyData.minPing;
+            minutelyStatBean.pingMax = minutelyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = minutelyData;
+                if (Object.keys(extras).length > 0) {
+                    minutelyStatBean.extras = JSON.stringify(extras);
+                }
             }
+            await R.store(minutelyStatBean);
         }
-        await R.store(minutelyStatBean);
 
-        // Remove the old data
-        log.debug("uptime-calc", "Remove old data");
-        await R.exec("DELETE FROM stat_minutely WHERE monitor_id = ? AND timestamp < ?", [
-            this.monitorID,
-            this.getMinutelyKey(date.subtract(24, "hour")),
-        ]);
+        // No need to remove old data in migration mode
+        if (!this.migrationMode) {
+            // Remove the old data
+            // TODO: Improvement: Convert it to a job?
+            log.debug("uptime-calc", "Remove old data");
+            await R.exec("DELETE FROM stat_minutely WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getMinutelyKey(currentDate.subtract(this.statMinutelyKeepHour, "hour")),
+            ]);
 
-        await R.exec("DELETE FROM stat_hourly WHERE monitor_id = ? AND timestamp < ?", [
-            this.monitorID,
-            this.getHourlyKey(date.subtract(30, "day")),
-        ]);
+            await R.exec("DELETE FROM stat_hourly WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getHourlyKey(currentDate.subtract(this.statHourlyKeepDay, "day")),
+            ]);
+        }
 
         return date;
     }
@@ -812,6 +837,14 @@ class UptimeCalculator {
         return dayjs.utc();
     }
 
+    /**
+     * For migration purposes.
+     * @param {boolean} value Migration mode on/off
+     * @returns {void}
+     */
+    setMigrationMode(value) {
+        this.migrationMode = value;
+    }
 }
 
 class UptimeDataResult {

src/components/CreateGroupDialog.vue

@@ -42,6 +42,9 @@ export default {
     mounted() {
         this.modal = new Modal(this.$refs.modal);
     },
+    beforeUnmount() {
+        this.cleanupModal();
+    },
     methods: {
         /**
          * Show the confirm dialog
@@ -58,6 +61,19 @@ export default {
             this.$emit("added", this.groupName);
             this.modal.hide();
         },
+        /**
+         * Clean up modal and restore scroll behavior
+         * @returns {void}
+         */
+        cleanupModal() {
+            if (this.modal) {
+                try {
+                    this.modal.hide();
+                } catch (e) {
+                    console.warn("Modal hide failed:", e);
+                }
+            }
+        }
     },
 };
 </script>

src/components/NextPingTimer.vue

@@ -0,0 +1,54 @@
+<template>
+    <span class="word">&nbsp;({{ $t("nextCheckIn") }}: {{ formattedTime }})</span>
+</template>
+
+<script>
+
+export default {
+    props: {
+        /** Time remaining in seconds */
+        timeRemaining: {
+            type: Number,
+            required: true,
+        },
+    },
+    computed: {
+        /**
+         * Formatted time remaining
+         * @returns {string} Formatted time
+         */
+        formattedTime() {
+            const days = Math.floor(this.timeRemaining / 86400);
+            const hours = Math.floor((this.timeRemaining % 86400) / 3600);
+            const minutes = Math.floor((this.timeRemaining % 3600) / 60);
+            const seconds = this.timeRemaining % 60;
+
+            let formattedTime = "";
+            if (seconds >= 0) {
+                formattedTime = seconds > 1 ? `${seconds}secs` : `${seconds}sec`;
+            }
+            if (minutes > 0) {
+                formattedTime = minutes > 1 ? `~ ${minutes}mins` : `~ ${minutes}min`;
+            }
+            if (hours > 0) {
+                formattedTime = hours > 1 ? `~ ${hours}hrs` : `~ ${hours}hr`;
+            }
+            if (days > 0) {
+                formattedTime = days > 1 ? `~ ${days}days` : `~ ${days}day`;
+            }
+
+            return formattedTime.trim();
+        },
+    },
+};
+</script>
+
+<style lang="scss" scoped>
+@import "../assets/vars.scss";
+
+.word {
+    color: $secondary-text;
+    font-size: 12px;
+}
+
+</style>

src/components/NotificationDialog.vue

@@ -232,6 +232,9 @@ export default {
     mounted() {
         this.modal = new Modal(this.$refs.modal);
     },
+    beforeUnmount() {
+        this.cleanupModal();
+    },
     methods: {
 
         /**
@@ -336,6 +339,20 @@ export default {
                 });
             } while (this.$root.notificationList.find(it => it.name === name));
             return name;
+        },
+
+        /**
+         * Clean up modal and restore scroll behavior
+         * @returns {void}
+         */
+        cleanupModal() {
+            if (this.modal) {
+                try {
+                    this.modal.hide();
+                } catch (e) {
+                    console.warn("Modal hide failed:", e);
+                }
+            }
         }
     },
 };

src/components/ProxyDialog.vue

@@ -125,11 +125,12 @@ export default {
             }
         };
     },
-
     mounted() {
         this.modal = new Modal(this.$refs.modal);
     },
-
+    beforeUnmount() {
+        this.cleanupModal();
+    },
     methods: {
         /**
          * Show dialog to confirm deletion
@@ -209,6 +210,20 @@ export default {
                 }
             });
         },
+
+        /**
+         * Clean up modal and restore scroll behavior
+         * @returns {void}
+         */
+        cleanupModal() {
+            if (this.modal) {
+                try {
+                    this.modal.hide();
+                } catch (e) {
+                    console.warn("Modal hide failed:", e);
+                }
+            }
+        }
     },
 };
 </script>

src/components/TagsManager.vue

@@ -248,6 +248,9 @@ export default {
         this.modal = new Modal(this.$refs.modal);
         this.getExistingTags();
     },
+    beforeUnmount() {
+        this.cleanupModal();
+    },
     methods: {
         /**
          * Show the add tag dialog
@@ -459,6 +462,19 @@ export default {
             this.newTags = [];
             this.deleteTags = [];
             this.processing = false;
+        },
+        /**
+         * Clean up modal and restore scroll behavior
+         * @returns {void}
+         */
+        cleanupModal() {
+            if (this.modal) {
+                try {
+                    this.modal.hide();
+                } catch (e) {
+                    console.warn("Modal hide failed:", e);
+                }
+            }
         }
     },
 };

src/lang/en.json

@@ -1059,6 +1059,7 @@
     "RabbitMQ Username": "RabbitMQ Username",
     "RabbitMQ Password": "RabbitMQ Password",
     "rabbitmqHelpText": "To use the monitor, you will need to enable the Management Plugin in your RabbitMQ setup. For more information, please consult the {rabitmq_documentation}.",
+    "nextCheckIn": "Next in ",
     "SendGrid API Key": "SendGrid API Key",
     "Separate multiple email addresses with commas": "Separate multiple email addresses with commas"
 }

src/pages/Details.vue

@@ -76,7 +76,10 @@
                 <div class="row">
                     <div class="col-md-8">
                         <HeartbeatBar :monitor-id="monitor.id" />
-                        <span class="word">{{ $t("checkEverySecond", [ monitor.interval ]) }}</span>
+                        <div>
+                            <span class="word">{{ $t("checkEverySecond", [ monitor.interval ]) }}</span>
+                            <span class="word"><NextPingTimer :timeRemaining="timeRemaining" /></span>
+                        </div>
                     </div>
                     <div class="col-md-4 text-center">
                         <span class="badge rounded-pill" :class=" 'bg-' + status.color " style="font-size: 30px;" data-testid="monitor-status">{{ status.text }}</span>
@@ -275,6 +278,7 @@ import { useToast } from "vue-toastification";
 const toast = useToast();
 import Confirm from "../components/Confirm.vue";
 import HeartbeatBar from "../components/HeartbeatBar.vue";
+import NextPingTimer from "../components/NextPingTimer.vue";
 import Status from "../components/Status.vue";
 import Datetime from "../components/Datetime.vue";
 import CountUp from "../components/CountUp.vue";
@@ -293,6 +297,7 @@ import "prismjs/components/prism-css";
 import { PrismEditor } from "vue-prism-editor";
 import "vue-prism-editor/dist/prismeditor.min.css";
 import ScreenshotDialog from "../components/ScreenshotDialog.vue";
+import dayjs from "dayjs";
 
 export default {
     components: {
@@ -300,6 +305,7 @@ export default {
         CountUp,
         Datetime,
         HeartbeatBar,
+        NextPingTimer,
         Confirm,
         Status,
         Pagination,
@@ -313,6 +319,7 @@ export default {
         return {
             page: 1,
             perPage: 25,
+            timeRemaining: 0,
             heartBeatList: [],
             toggleCertInfoBox: false,
             showPingChartBox: true,
@@ -340,6 +347,8 @@ export default {
             // Also trigger screenshot refresh here
             // eslint-disable-next-line vue/no-side-effects-in-computed-properties
             this.cacheTime = Date.now();
+            // eslint-disable-next-line vue/no-side-effects-in-computed-properties
+            this.timeRemaining = this.monitor.interval;
 
             if (this.monitor.id in this.$root.lastHeartbeatList && this.$root.lastHeartbeatList[this.monitor.id]) {
                 return this.$root.lastHeartbeatList[this.monitor.id];
@@ -399,7 +408,7 @@ export default {
 
         screenshotURL() {
             return getResBaseURL() + this.monitor.screenshot + "?time=" + this.cacheTime;
-        }
+        },
     },
 
     watch: {
@@ -419,7 +428,14 @@ export default {
             this.loadPushExample();
         },
     },
-
+    created() {
+        if (this.lastHeartBeat.end_time) {
+            const lastpingtime = dayjs().utc().diff(dayjs.utc(this.lastHeartBeat.end_time), "seconds");
+            this.timeRemaining = this.monitor.interval - lastpingtime;
+        } else {
+            this.timeRemaining = this.monitor.interval;
+        }
+    },
     mounted() {
         this.getImportantHeartbeatListLength();
 
@@ -431,10 +447,17 @@ export default {
             }
             this.loadPushExample();
         }
+
+        this.interval = setInterval(() => {
+            if (this.timeRemaining > 1) {
+                this.timeRemaining--;
+            }
+        }, 1000);
     },
 
     beforeUnmount() {
         this.$root.emitter.off("newImportantHeartbeat", this.onNewImportantHeartbeat);
+        clearInterval(this.interval);
     },
 
     methods: {
@@ -464,6 +487,7 @@ export default {
             this.$root.getSocket().emit("resumeMonitor", this.monitor.id, (res) => {
                 this.$root.toastRes(res);
             });
+            this.timeRemaining = this.monitor.interval;
         },
 
         /**