refactor: merging all util functions into classes

3 files changed, 144 insertions, 185 deletions

diff --git a/web/assets/js/util/common.js b/web/assets/js/util/common.js
deleted file mode 100644
index 9ad2e01f..00000000
--- a/web/assets/js/util/common.js
+++ /dev/null
@@ -1,183 +0,0 @@
-const ONE_KB = 1024;
-const ONE_MB = ONE_KB * 1024;
-const ONE_GB = ONE_MB * 1024;
-const ONE_TB = ONE_GB * 1024;
-const ONE_PB = ONE_TB * 1024;
-
-function sizeFormat(size) {
-    if (size <= 0) return "0 B";
-
-    if (size < ONE_KB) {
-        return size.toFixed(0) + " B";
-    } else if (size < ONE_MB) {
-        return (size / ONE_KB).toFixed(2) + " KB";
-    } else if (size < ONE_GB) {
-        return (size / ONE_MB).toFixed(2) + " MB";
-    } else if (size < ONE_TB) {
-        return (size / ONE_GB).toFixed(2) + " GB";
-    } else if (size < ONE_PB) {
-        return (size / ONE_TB).toFixed(2) + " TB";
-    } else {
-        return (size / ONE_PB).toFixed(2) + " PB";
-    }
-}
-
-function cpuSpeedFormat(speed) {
-    if (speed > 1000) {
-        const GHz = speed / 1000;
-        return GHz.toFixed(2) + " GHz";
-    } else {
-        return speed.toFixed(2) + " MHz";
-    }
-}
-
-function cpuCoreFormat(cores) {
-    if (cores === 1) {
-        return "1 Core";
-    } else {
-        return cores + " Cores";
-    }
-}
-
-function formatSecond(second) {
-    if (second < 60) {
-        return second.toFixed(0) + 's';
-    } else if (second < 3600) {
-        return (second / 60).toFixed(0) + 'm';
-    } else if (second < 3600 * 24) {
-        return (second / 3600).toFixed(0) + 'h';
-    } else {
-        day = Math.floor(second / 3600 / 24);
-        remain = ((second / 3600) - (day * 24)).toFixed(0);
-        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
-    }
-}
-
-function addZero(num) {
-    if (num < 10) {
-        return "0" + num;
-    } else {
-        return num;
-    }
-}
-
-function toFixed(num, n) {
-    n = Math.pow(10, n);
-    return Math.floor(num * n) / n;
-}
-
-function debounce(fn, delay) {
-    var timeoutID = null;
-    return function () {
-        clearTimeout(timeoutID);
-        var args = arguments;
-        var that = this;
-        timeoutID = setTimeout(function () {
-            fn.apply(that, args);
-        }, delay);
-    };
-}
-
-function getCookie(cname) {
-    let name = cname + '=';
-    let ca = document.cookie.split(';');
-    for (let i = 0; i < ca.length; i++) {
-        let c = ca[i];
-        while (c.charAt(0) == ' ') {
-            c = c.substring(1);
-        }
-        if (c.indexOf(name) == 0) {
-            // decode cookie value only
-            return decodeURIComponent(c.substring(name.length, c.length));
-        }
-    }
-    return '';
-}
-
-
-function setCookie(cname, cvalue, exdays) {
-    const d = new Date();
-    d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
-    let expires = 'expires=' + d.toUTCString();
-    // encode cookie value
-    document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
-}
-
-function usageColor(data, threshold, total) {
-    switch (true) {
-        case data === null:
-            return "purple";
-        case total < 0:
-            return "green";
-        case total == 0:
-            return "purple";
-        case data < total - threshold:
-            return "green";
-        case data < total:
-            return "orange";
-        default:
-            return "red";
-    }
-}
-
-function clientUsageColor(clientStats, trafficDiff) {
-    switch (true) {
-        case !clientStats || clientStats.total == 0:
-            return "#7a316f"; // purple
-        case clientStats.up + clientStats.down < clientStats.total - trafficDiff:
-            return "#008771"; // Green
-        case clientStats.up + clientStats.down < clientStats.total:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function userExpiryColor(threshold, client, isDark = false) {
-    if (!client.enable) {
-        return isDark ? '#2c3950' : '#bcbcbc';
-    }
-    now = new Date().getTime(),
-        expiry = client.expiryTime;
-    switch (true) {
-        case expiry === null:
-            return "#7a316f"; // purple
-        case expiry < 0:
-            return "#008771"; // Green
-        case expiry == 0:
-            return "#7a316f"; // purple
-        case now < expiry - threshold:
-            return "#008771"; // Green
-        case now < expiry:
-            return "#f37b24"; // Orange
-        default:
-            return "#cf3c3c"; // Red
-    }
-}
-
-function doAllItemsExist(array1, array2) {
-    for (let i = 0; i < array1.length; i++) {
-        if (!array2.includes(array1[i])) {
-            return false;
-        }
-    }
-    return true;
-}
-
-function buildURL({ host, port, isTLS, base, path }) {
-    if (!host || host.length === 0) host = window.location.hostname;
-    if (!port || port.length === 0) port = window.location.port;
-
-    if (isTLS === undefined) isTLS = window.location.protocol === "https:";
-
-    const protocol = isTLS ? "https:" : "http:";
-
-    port = String(port);
-    if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
-        port = "";
-    } else {
-        port = `:${port}`;
-    }
-
-    return `${protocol}//${host}${port}${base}${path}`;
-}
diff --git a/web/assets/js/util/date-util.js b/web/assets/js/util/date-util.js
index 50efd6fe..9b4b0f81 100644
--- a/web/assets/js/util/date-util.js
+++ b/web/assets/js/util/date-util.js
@@ -108,14 +108,14 @@ Date.prototype.setMaxTime = function () {
  * Formatting date
  */
 Date.prototype.formatDate = function () {
-    return this.getFullYear() + "-" + addZero(this.getMonth() + 1) + "-" + addZero(this.getDate());
+    return this.getFullYear() + "-" + NumberFormatter.addZero(this.getMonth() + 1) + "-" + NumberFormatter.addZero(this.getDate());
 };
 
 /**
  * Format time
  */
 Date.prototype.formatTime = function () {
-    return addZero(this.getHours()) + ":" + addZero(this.getMinutes()) + ":" + addZero(this.getSeconds());
+    return NumberFormatter.addZero(this.getHours()) + ":" + NumberFormatter.addZero(this.getMinutes()) + ":" + NumberFormatter.addZero(this.getSeconds());
 };
 
 /**
diff --git a/web/assets/js/util/utils.js b/web/assets/js/util/index.js
index ab7c977a..8a6a4703 100644
--- a/web/assets/js/util/utils.js
+++ b/web/assets/js/util/index.js
@@ -527,4 +527,146 @@ class Base64 {
     static decode(content = "") {
         return window.atob(content)
     }
+}
+
+class SizeFormatter {
+    static ONE_KB = 1024;
+    static ONE_MB = this.ONE_KB * 1024;
+    static ONE_GB = this.ONE_MB * 1024;
+    static ONE_TB = this.ONE_GB * 1024;
+    static ONE_PB = this.ONE_TB * 1024;
+
+    static sizeFormat(size) {
+        if (size <= 0) return "0 B";
+        if (size < this.ONE_KB) return size.toFixed(0) + " B";
+        if (size < this.ONE_MB) return (size / this.ONE_KB).toFixed(2) + " KB";
+        if (size < this.ONE_GB) return (size / this.ONE_MB).toFixed(2) + " MB";
+        if (size < this.ONE_TB) return (size / this.ONE_GB).toFixed(2) + " GB";
+        if (size < this.ONE_PB) return (size / this.ONE_TB).toFixed(2) + " TB";
+        return (size / this.ONE_PB).toFixed(2) + " PB";
+    }
+}
+
+class CPUFormatter {
+    static cpuSpeedFormat(speed) {
+        return speed > 1000 ? (speed / 1000).toFixed(2) + " GHz" : speed.toFixed(2) + " MHz";
+    }
+    
+    static cpuCoreFormat(cores) {
+        return cores === 1 ? "1 Core" : cores + " Cores";
+    }
+}
+
+class TimeFormatter {
+    static formatSecond(second) {
+        if (second < 60) return second.toFixed(0) + 's';
+        if (second < 3600) return (second / 60).toFixed(0) + 'm';
+        if (second < 3600 * 24) return (second / 3600).toFixed(0) + 'h';
+        let day = Math.floor(second / 3600 / 24);
+        let remain = ((second / 3600) - (day * 24)).toFixed(0);
+        return day + 'd' + (remain > 0 ? ' ' + remain + 'h' : '');
+    }
+}
+
+class NumberFormatter {
+    static addZero(num) {
+        return num < 10 ? "0" + num : num;
+    }
+    
+    static toFixed(num, n) {
+        n = Math.pow(10, n);
+        return Math.floor(num * n) / n;
+    }
+}
+
+class Utils {
+    static debounce(fn, delay) {
+        let timeoutID = null;
+        return function () {
+            clearTimeout(timeoutID);
+            let args = arguments;
+            let that = this;
+            timeoutID = setTimeout(() => fn.apply(that, args), delay);
+        };
+    }
+}
+
+class CookieManager {
+    static getCookie(cname) {
+        let name = cname + '=';
+        let ca = document.cookie.split(';');
+        for (let c of ca) {
+            c = c.trim();
+            if (c.indexOf(name) === 0) {
+                return decodeURIComponent(c.substring(name.length, c.length));
+            }
+        }
+        return '';
+    }
+    
+    static setCookie(cname, cvalue, exdays) {
+        const d = new Date();
+        d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
+        let expires = 'expires=' + d.toUTCString();
+        document.cookie = cname + '=' + encodeURIComponent(cvalue) + ';' + expires + ';path=/';
+    }
+}
+
+class ColorUtils {
+    static usageColor(data, threshold, total) {
+        switch (true) {
+            case data === null: return "purple";
+            case total < 0: return "green";
+            case total == 0: return "purple";
+            case data < total - threshold: return "green";
+            case data < total: return "orange";
+            default: return "red";
+        }
+    }
+    
+    static clientUsageColor(clientStats, trafficDiff) {
+        switch (true) {
+            case !clientStats || clientStats.total == 0: return "#7a316f";
+            case clientStats.up + clientStats.down < clientStats.total - trafficDiff: return "#008771";
+            case clientStats.up + clientStats.down < clientStats.total: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+    
+    static userExpiryColor(threshold, client, isDark = false) {
+        if (!client.enable) return isDark ? '#2c3950' : '#bcbcbc';
+        let now = new Date().getTime(), expiry = client.expiryTime;
+        switch (true) {
+            case expiry === null: return "#7a316f";
+            case expiry < 0: return "#008771";
+            case expiry == 0: return "#7a316f";
+            case now < expiry - threshold: return "#008771";
+            case now < expiry: return "#f37b24";
+            default: return "#cf3c3c";
+        }
+    }
+}
+
+class ArrayUtils {
+    static doAllItemsExist(array1, array2) {
+        return array1.every(item => array2.includes(item));
+    }
+}
+
+class URLBuilder {
+    static buildURL({ host, port, isTLS, base, path }) {
+        if (!host || host.length === 0) host = window.location.hostname;
+        if (!port || port.length === 0) port = window.location.port;
+        if (isTLS === undefined) isTLS = window.location.protocol === "https:";
+        
+        const protocol = isTLS ? "https:" : "http:";
+        port = String(port);
+        if (port === "" || (isTLS && port === "443") || (!isTLS && port === "80")) {
+            port = "";
+        } else {
+            port = `:${port}`;
+        }
+        
+        return `${protocol}//${host}${port}${base}${path}`;
+    }
 }
\ No newline at end of file