added icon

src/main/java/cz/kamma/tvcom/HttpServerApp.java

@@ -26,7 +26,8 @@ public class HttpServerApp {
 		server.createContext("/transmissions", exchange -> {
 			try {
 				setCors(exchange);
-                if (!checkApiKey(exchange)) return;
+				if (!checkApiKey(exchange))
+					return;
 
 				URI uri = exchange.getRequestURI();
 				String query = uri.getQuery();
@@ -58,7 +59,8 @@ public class HttpServerApp {
 		server.createContext("/search", exchange -> {
 			try {
 				setCors(exchange);
-                if (!checkApiKey(exchange)) return;
+				if (!checkApiKey(exchange))
+					return;
 
 				URI uri = exchange.getRequestURI();
 				String query = null;
@@ -82,7 +84,8 @@ public class HttpServerApp {
 		server.createContext("/refresh", exchange -> {
 			try {
 				setCors(exchange);
-                if (!checkApiKey(exchange)) return;
+				if (!checkApiKey(exchange))
+					return;
 
 				if ("GET".equalsIgnoreCase(exchange.getRequestMethod())) {
 					// přečti volitelné datum z query stringu
@@ -98,15 +101,15 @@ public class HttpServerApp {
 					}
 
 					// pokud není zadané, použij dnešní den
-                    String dateStr = (dateParam != null && !dateParam.isBlank())
-                            ? dateParam
+					String dateStr = (dateParam != null && !dateParam.isBlank()) ? dateParam
 							: java.time.LocalDate.now().toString();
 
 					// načti data pro konkrétní den
 					System.out.println("🔄 Obnovuji data pro den: " + dateStr);
 					service.reloadDayAsync(dateStr);
 
-                    respondJson(exchange, "{\"status\":\"ok\",\"message\":\"Data pro den " + dateStr + " se obnovují.\"}");
+					respondJson(exchange,
+							"{\"status\":\"ok\",\"message\":\"Data pro den " + dateStr + " se obnovují.\"}");
 				} else {
 					exchange.sendResponseHeaders(405, -1);
 				}
@@ -119,8 +122,24 @@ public class HttpServerApp {
 		server.createContext("/", exchange -> {
 			try {
 				setCors(exchange);
-                if (!checkApiKey(exchange)) return;
 				String path = exchange.getRequestURI().getPath();
+				if (path.equals("/icon.png")) {
+					byte[] data = readResourceAsBytes("/icon.png");
+					if (data == null) {
+						sendError(exchange, 404, "index.html not found in resources");
+						return;
+					}
+					exchange.getResponseHeaders().set("Content-Type", "image/png");
+					exchange.sendResponseHeaders(200, data.length);
+					try (OutputStream os = exchange.getResponseBody()) {
+						os.write(data);
+						os.flush();
+					}
+					return;
+				}
+
+				if (!checkApiKey(exchange))
+					return;
 				if ("/".equals(path) || path.isEmpty() || path.equals("/index.html")) {
 					String html = readResource("/index.html");
 					if (html == null) {
@@ -132,6 +151,7 @@ public class HttpServerApp {
 					exchange.sendResponseHeaders(200, bytes.length);
 					try (OutputStream os = exchange.getResponseBody()) {
 						os.write(bytes);
+						os.flush();
 					}
 				} else {
 					sendError(exchange, 404, "Not found");
@@ -150,6 +170,23 @@ public class HttpServerApp {
 		System.out.println("   ➜ /               (web UI)");
 	}
 
+	private static byte[] readResourceAsBytes(String string) {
+		try (InputStream is = HttpServerApp.class.getResourceAsStream(string)) {
+			if (is == null)
+				return null;
+			ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+			byte[] data = new byte[16384];
+			int nRead;
+			while ((nRead = is.read(data, 0, data.length)) != -1) {
+				buffer.write(data, 0, nRead);
+			}
+			return buffer.toByteArray();
+		} catch (IOException e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+
 	// ======= API Key ochrana =======
 	private static boolean checkApiKey(HttpExchange exchange) throws IOException {
 		String query = exchange.getRequestURI().getQuery(); // např. apiKey=xxxx
@@ -214,7 +251,8 @@ public class HttpServerApp {
 	// ======= Načtení resource =======
 	private static String readResource(String resourcePath) {
 		try (InputStream is = HttpServerApp.class.getResourceAsStream(resourcePath)) {
-            if (is == null) return null;
+			if (is == null)
+				return null;
 			try (BufferedReader br = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8))) {
 				StringBuilder sb = new StringBuilder();
 				String line;

src/main/resources/index.html

@@ -2,6 +2,7 @@
 <html lang="cs">
 <head>
 <meta charset="UTF-8" />
+<link rel="icon" href="icon.png">
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <title>TVCOM Přenosy</title>
 <style>
@@ -74,7 +75,7 @@ input, select, button {
 	margin-top: 30px;
 }
 
-@media (max-width: 500px) {
+@media ( max-width : 500px) {
 	.card img {
 		height: 120px;
 	}
@@ -82,21 +83,20 @@ input, select, button {
 </style>
 </head>
 <body>
-<h1>📺 TVCOM Přenosy</h1>
+	<h1>📺 TVCOM Přenosy</h1>
 
-<div class="filters">
-	<input id="search" type="text" placeholder="Hledat přenos..." />
-	<input id="datePicker" type="date" />
-	<select id="sportFilter">
+	<div class="filters">
+		<input id="search" type="text" placeholder="Hledat přenos..." /> <input
+			id="datePicker" type="date" /> <select id="sportFilter">
 			<option value="">Všechny sporty</option>
 		</select>
 		<button id="refreshBtn">♻️ Obnovit data</button>
-</div>
+	</div>
 
-<div id="loading">Načítám data...</div>
-<div id="list" class="grid" style="display: none"></div>
+	<div id="loading">Načítám data...</div>
+	<div id="list" class="grid" style="display: none"></div>
 
-<script>
+	<script>
 const API_BASE = "";
 const urlParams = new URLSearchParams(window.location.search);
 const apiKey = urlParams.get('apiKey');