From df83a2861130d4e07b0a720a3452f10cbc4bc84b Mon Sep 17 00:00:00 2001
From: Petri Hienonen <petri.hienonen@gmail.com>
Date: Sun, 28 Sep 2025 21:23:14 +0300
Subject: Complex

---
 static/interface-renderer.js | 150 +++++++++++++++++++++++++++++++++++++------
 static/utils.js              |  37 +++++++++++
 2 files changed, 168 insertions(+), 19 deletions(-)

diff --git a/static/interface-renderer.js b/static/interface-renderer.js
index 5145cf3..d3478be 100644
--- a/static/interface-renderer.js
+++ b/static/interface-renderer.js
@@ -1,6 +1,7 @@
 /* jshint esversion: 2024, module: true */
 
 import { Utils } from "./utils.js";
+import { InterfaceState } from "./enums.js";
 
 /**
  * Static Interface Renderer for displaying network interfaces
@@ -27,7 +28,7 @@ class InterfaceRenderer {
 				const isActive = iface === currentInterface;
 
 				return `
-                <button class="interface-tab ${isActive ? "active" : ""}"
+                <button class="interface-tab ${isActive ? "active" : ""}" 
                         data-interface="${Utils.sanitizeHTML(iface.Name)}">
                     ${Utils.sanitizeHTML(iface.Name)}
                     <span class="interface-state ${stateClass}">${Utils.sanitizeHTML(stateText)}</span>
@@ -96,7 +97,10 @@ class InterfaceRenderer {
 				"DNS",
 				InterfaceRenderer.renderDNSServerList(iface.DNS),
 			),
-			InterfaceRenderer.renderDetailRow("NTP", iface.NTP),
+			InterfaceRenderer.renderDetailRow(
+				"NTP",
+				InterfaceRenderer.renderNTPServerList(iface.NTP),
+			),
 			InterfaceRenderer.renderDetailRow(
 				"Activation Policy",
 				iface.ActivationPolicy,
@@ -126,7 +130,7 @@ class InterfaceRenderer {
 	 * @returns {string} HTML string
 	 */
 	static renderDetailRow(label, value, valueClass = "") {
-		if (!value) return "";
+		if (!value && value !== 0 && value !== false) return "";
 
 		const abbreviations = {
 			MTU: "Maximum Transmission Unit",
@@ -145,14 +149,73 @@ class InterfaceRenderer {
 			? `<abbr title="${abbreviations[label]}">${label}</abbr>`
 			: label;
 
+		// Handle different value types
+		let displayValue;
+		if (typeof value === "string") {
+			displayValue = Utils.sanitizeHTML(value);
+		} else if (typeof value === "object") {
+			// Handle object rendering
+			displayValue = InterfaceRenderer.renderObjectValue(value);
+		} else {
+			displayValue = Utils.sanitizeHTML(String(value));
+		}
+
 		return `
             <div class="detail-row">
                 <span class="detail-label">${abbrLabel}:</span>
-                <span class="detail-value ${valueClass}">${Utils.sanitizeHTML(value)}</span>
+                <span class="detail-value ${valueClass}">${displayValue}</span>
             </div>
         `;
 	}
 
+	/**
+	 * Render object value for display
+	 * @static
+	 * @param {Object} obj - Object to render
+	 * @returns {string} HTML string
+	 */
+	static renderObjectValue(obj) {
+		if (obj === null || obj === undefined) return "";
+
+		// Handle array of objects
+		if (Array.isArray(obj)) {
+			return obj
+				.map((item) => InterfaceRenderer.renderObjectValue(item))
+				.join(", ");
+		}
+
+		// Handle plain object
+		if (typeof obj === "object") {
+			// Check if it's an IP address object
+			if (obj.Address && Array.isArray(obj.Address)) {
+				return Utils.ipFromArray(obj);
+			}
+
+			// Check if it's a simple key-value object we can stringify
+			try {
+				const simpleObj = {};
+				for (const [key, value] of Object.entries(obj)) {
+					if (
+						value !== null &&
+						value !== undefined &&
+						typeof value !== "object"
+					) {
+						simpleObj[key] = value;
+					}
+				}
+				if (Object.keys(simpleObj).length > 0) {
+					return Utils.sanitizeHTML(JSON.stringify(simpleObj));
+				}
+			} catch (e) {
+				// Fall through to default handling
+			}
+
+			return Utils.sanitizeHTML(String(obj));
+		}
+
+		return Utils.sanitizeHTML(String(obj));
+	}
+
 	/**
 	 * Render address list
 	 * @static
@@ -162,14 +225,15 @@ class InterfaceRenderer {
 	static renderAddressList(addresses) {
 		if (!addresses?.length) return "";
 
-		return addresses
+		const addressItems = addresses
 			.map((addr) => {
 				const ip = Utils.ipFromArray(addr);
-				return ip
-					? `<div class="address-item">${Utils.sanitizeHTML(ip)}</div>`
-					: "";
+				return ip ? Utils.sanitizeHTML(ip) : "";
 			})
-			.join("");
+			.filter((ip) => ip)
+			.join(", ");
+
+		return addressItems || "";
 	}
 
 	/**
@@ -181,14 +245,47 @@ class InterfaceRenderer {
 	static renderDNSServerList(dnsServers) {
 		if (!dnsServers?.length) return "";
 
-		return dnsServers
+		const dnsItems = dnsServers
 			.map((dns) => {
 				const server = Utils.ipFromArray(dns.Address ?? dns);
-				return server
-					? `<div class="dns-item">${Utils.sanitizeHTML(server)}</div>`
-					: "";
+				return server ? Utils.sanitizeHTML(server) : "";
 			})
-			.join("");
+			.filter((server) => server)
+			.join(", ");
+
+		return dnsItems || "";
+	}
+
+	/**
+	 * Render NTP server list
+	 * @static
+	 * @param {Array} ntpServers - Array of NTP servers
+	 * @returns {string} Formatted NTP servers
+	 */
+	static renderNTPServerList(ntpServers) {
+		if (!ntpServers?.length) return "";
+
+		const ntpItems = ntpServers
+			.map((ntp) => {
+				if (typeof ntp === "string") {
+					return Utils.sanitizeHTML(ntp);
+				} else if (ntp && typeof ntp === "object") {
+					// Handle NTP server object
+					if (ntp.Address && Array.isArray(ntp.Address)) {
+						return Utils.ipFromArray(ntp);
+					} else if (ntp.Server) {
+						return Utils.sanitizeHTML(ntp.Server);
+					} else {
+						// Try to extract any stringifiable value
+						return InterfaceRenderer.renderObjectValue(ntp);
+					}
+				}
+				return "";
+			})
+			.filter((server) => server)
+			.join(", ");
+
+		return ntpItems || "";
 	}
 
 	/**
@@ -200,13 +297,28 @@ class InterfaceRenderer {
 	static renderDHCPLeases(leases) {
 		if (!leases?.length) return "";
 
-		return leases
+		const leaseItems = leases
 			.map((lease) => {
-				const ip = lease.IP ?? lease;
-				const to = lease.To ?? lease.MAC ?? "";
-				return `<div class="lease-item">${Utils.sanitizeHTML(ip)} (to ${Utils.sanitizeHTML(to)})</div>`;
+				if (typeof lease === "string") {
+					return Utils.sanitizeHTML(lease);
+				} else if (lease && typeof lease === "object") {
+					const ip = lease.IP ?? lease.Address ?? lease;
+					const to = lease.To ?? lease.MAC ?? lease.ClientIdentifier ?? "";
+
+					if (ip && to) {
+						return `${Utils.sanitizeHTML(String(ip))} (to ${Utils.sanitizeHTML(String(to))})`;
+					} else if (ip) {
+						return Utils.sanitizeHTML(String(ip));
+					} else {
+						return InterfaceRenderer.renderObjectValue(lease);
+					}
+				}
+				return "";
 			})
-			.join("");
+			.filter((lease) => lease)
+			.join(", ");
+
+		return leaseItems || "";
 	}
 }
 
diff --git a/static/utils.js b/static/utils.js
index 32b10be..931653f 100644
--- a/static/utils.js
+++ b/static/utils.js
@@ -168,6 +168,43 @@ class Utils {
 			timeout = setTimeout(later, wait);
 		};
 	}
+	/**
+	 * Safely convert any value to display string
+	 * @static
+	 * @param {*} value - Any value
+	 * @returns {string} Safe display string
+	 */
+	static safeToString(value) {
+		if (value === null || value === undefined) return "";
+		if (typeof value === "string") return value;
+		if (typeof value === "number" || typeof value === "boolean")
+			return String(value);
+		if (Array.isArray(value)) {
+			return value.map((item) => Utils.safeToString(item)).join(", ");
+		}
+		if (typeof value === "object") {
+			// Handle IP address objects
+			if (value.Address && Array.isArray(value.Address)) {
+				return Utils.ipFromArray(value);
+			}
+			// Try to stringify simple objects
+			try {
+				const simpleObj = {};
+				for (const [key, val] of Object.entries(value)) {
+					if (val !== null && val !== undefined && typeof val !== "object") {
+						simpleObj[key] = val;
+					}
+				}
+				if (Object.keys(simpleObj).length > 0) {
+					return JSON.stringify(simpleObj);
+				}
+			} catch (e) {
+				// Fall through
+			}
+			return String(value);
+		}
+		return String(value);
+	}
 }
 
 export { Utils };
-- 
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