connect and list usernames methods and more comments

js/commands.js

@@ -57,8 +57,8 @@ function runCommand(input) {
     return output;
 }
 
+// Display 'help' message
 function cmd_help() {
-    // Display 'help' message
     return "Commands list:<br>" +
         "   -about    Information about this website<br>"+
         "   -clear    Clear terminal screen<br>" +
@@ -68,19 +68,19 @@ function cmd_help() {
         "   -msg      Open a direct chat to the provided user by name";
 }
 
+// Display 'about' message
 function cmd_about() {
-    // Display 'about' message
     return "This website is based on the general idea and design of a terminal.<br>" +
         "It serves the purpose of a homepage. It exists just for the fun of creating it.";
 }
 
+// Clear terminal by reloading page
 function cmd_clear() {
-    // Clear terminal by reloading page
     window.location.reload();
 }
 
+// Display the command history line by line
 function cmd_history() {
-    // Display the command history line by line
     let output = "";
 
     const hl = history.list;
@@ -92,6 +92,7 @@ function cmd_history() {
     return output;
 }
 
+// Execute arbitrary math and logic equations
 function cmd_exec(input) {
     // No input was given
     if (input === undefined)
@@ -128,8 +129,9 @@ function cmd_echo(input) {
 function cmd_nick(input) {
     if (input === undefined)
         return "No nickname was given!";
-    user.name = input[0];
-    sendNickname();
+    if (!user.connected)
+        return "You are not connected!";
+    sendNickname(input[0]);
     return null;
 }
 
@@ -170,4 +172,18 @@ function cmd_exit(error) {
     // Exit was called automatically. Print error.
     if (error)
         outputText({output: error});
+}
+
+// List all users to be able to chat with
+function cmd_ll() {
+    if (!user.connected)
+        return "You are not connected!";
+    requestUsernames();
+}
+
+// Connect to server
+function cmd_connect() {
+    if (user.connected)
+        return "You are already connected!";
+    connect();
 }

js/networking.js

@@ -19,24 +19,27 @@ document.body.onunload = document.body.onbeforeunload = () => {
 };
 
 // Connect to server
-fetch('/connect').then(res => {
-    if (res.status === 200) {
-        user.connected = true;
-        return res.json();
-    }
-    // No valid status code was sent
-    console.error("Could not connect to server!");
-}).then(res => {
-    if (res === undefined)
-        return;
-    // Save provided id
-    const { id } = res;
-    user.id = id;
-});
+function connect() {
+    fetch('/connect').then(res => {
+        if (res.status === 200) {
+            user.connected = true;
+            return res.json();
+        }
+        // No valid status code was sent
+        console.error("Could not connect to server!");
+    }).then(res => {
+        if (res === undefined)
+            return;
+        // Save provided id
+        const {id} = res;
+        user.id = id;
+    });
+}
+connect();
 
 
 // Send nickname to server, receive verification
-function sendNickname() {
+function sendNickname(name) {
     fetch('/nickname', {
         method: 'POST',
         headers: {
@@ -44,8 +47,8 @@ function sendNickname() {
             'Content-Type': 'application/json'
         },
         body: JSON.stringify({
-            name: user.name,
-            id: user.id
+            id: user.id,
+            name
         })
     }).then(res => {
         if (res.status === 200)
@@ -54,13 +57,11 @@ function sendNickname() {
         // No valid status code
         if (res === undefined)
             return;
+        // Receive name and save it
+        const { name } = res;
+        user.name = name;
         // Reply whether name is taken or not
-        if (res.success)
-            outputText({output: `Applied name '${user.name}'.`});
-        else {
-            outputText({output: `Name '${user.name}' is already taken!`});
-            user.name = "";
-        }
+        outputText({output: `Applied name '${name}'.`});
     });
 }
 
@@ -99,7 +100,6 @@ function getChatMessages() {
 
 // Send a direct message, do not look at response
 function directMessage(name, message) {
-    // Direct message
     fetch('/message', {
         method: 'POST',
         headers: {
@@ -114,4 +114,25 @@ function directMessage(name, message) {
     }).then(res => {});
 }
 
-// function globalMessage(message) {}
+// function globalMessage(message) {}
+
+// Request all usernames and number of anonymous users
+function requestUsernames() {
+    fetch('/getNames', {
+        method: 'GET',
+        headers: {
+            'Accept': 'application/json',
+        }
+    }).then(res => {
+        if (res.status === 200)
+            return res.json();
+    }).then(res => {
+        if (res === undefined)
+            return;
+        for (const u of res)
+            outputText({
+                preNext: `${u.id}: `,
+                output: u.name
+            });
+    });
+}