Chat page UI implemented.

src/main/java/org/to/telegramfinalproject/UI/ChatPageController.java

@@ -0,0 +1,277 @@
+package org.to.telegramfinalproject.UI;
+
+import javafx.application.Platform;
+import javafx.fxml.FXML;
+import javafx.geometry.Side;
+import javafx.scene.control.*;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.scene.shape.Circle;
+import javafx.stage.FileChooser;
+
+import java.io.File;
+
+public class ChatPageController {
+
+    // ===== messages area =====
+    @FXML private VBox messageContainer;
+    @FXML private ScrollPane messageScrollPane;
+
+    // ===== input area =====
+    @FXML private TextArea messageInput;
+    @FXML private Button sendButton;
+
+    @FXML private Button attachmentButton;
+    @FXML private ImageView attachmentIcon;   // <ImageView> inside the attachment button
+
+    // ===== header =====
+    @FXML private ImageView userAvatar;       // 36x36 in the FXML
+    @FXML private Label chatTitle;            // contact/group title
+    @FXML private Label chatStatus;           // last seen / online
+
+    @FXML private Button searchInChatButton;  // magnifier button
+    @FXML private ImageView searchIcon;
+
+    @FXML private Button moreButton;          // 3-dots button
+    @FXML private ImageView moreIcon;
+    @FXML private ContextMenu moreMenu;
+    @FXML private MenuItem viewProfileItem;
+    @FXML private MenuItem deleteChatItem;
+
+    // ===== send icon =====
+    @FXML private ImageView sendIcon;
+
+    // ===== state =====
+    private String chatName;
+    private final ThemeManager themeManager = ThemeManager.getInstance();
+
+    // Where your icons live
+    private static final String ICON_BASE = "/org/to/telegramfinalproject/Icons/";
+
+    @FXML
+    public void initialize() {
+        // Send button
+        if (sendButton != null) {
+            sendButton.setOnAction(e -> sendMessage());
+        }
+
+        // ENTER = send, SHIFT+ENTER = newline
+        messageInput.addEventFilter(javafx.scene.input.KeyEvent.KEY_PRESSED, e -> {
+            if (e.getCode() == javafx.scene.input.KeyCode.ENTER) {
+                if (e.isShiftDown()) {
+                    // let newline happen
+                } else {
+                    e.consume(); // block newline
+                    sendMessage();
+                }
+            }
+        });
+
+        // Enable/disable send button by content (ignore spaces/newlines)
+        messageInput.textProperty().addListener((obs, oldV, newV) -> {
+            boolean hasRealText = newV != null && !newV.trim().isEmpty();
+            sendButton.setDisable(!hasRealText);
+
+            // toggle style class for color state
+            var sc = sendButton.getStyleClass();
+            sc.removeAll("send-empty", "send-ready");
+            sc.add(hasRealText ? "send-ready" : "send-empty");
+        });
+
+        // Auto-resize input box like Telegram
+        messageInput.textProperty().addListener((obs, oldText, newText) -> {
+            Platform.runLater(() -> {
+                var textNode = messageInput.lookup(".text");
+                if (textNode != null) {
+                    double textHeight = textNode.getBoundsInLocal().getHeight();
+                    double padding = 20; // top + bottom padding
+                    double newHeight = textHeight + padding;
+
+                    if (newHeight < 40) newHeight = 40;   // min (1 row)
+                    if (newHeight > 120) newHeight = 120; // max (~5 rows)
+
+                    messageInput.setPrefHeight(newHeight);
+                }
+            });
+        });
+
+        // Start in "empty" state
+        sendButton.getStyleClass().add("send-empty");
+
+        // attach file
+        if (attachmentButton != null) {
+            attachmentButton.setOnAction(e -> openFileChooser());
+        }
+
+        // Hook "More" button → show menu under it
+        if (moreButton != null) {
+            moreButton.setOnAction(e -> {
+                if (!moreMenu.isShowing()) {
+                    moreMenu.show(moreButton, Side.BOTTOM, 0, 0);
+                } else {
+                    moreMenu.hide();
+                }
+            });
+        }
+
+        // Menu item actions
+        viewProfileItem.setOnAction(e -> {
+            System.out.println("Viewing profile of " + chatName);
+            // TODO: open profile UI
+        });
+
+        deleteChatItem.setOnAction(e -> {
+            System.out.println("Deleting chat with " + chatName);
+            // TODO: delete logic
+        });
+
+        // Initial icon sync once the Scene is ready (stylesheet applied)
+        Platform.runLater(this::syncIconsWithTheme);
+
+        // Auto-Scroll
+        messageContainer.heightProperty().addListener((obs, oldVal, newVal) -> {
+            Platform.runLater(() -> {
+                var timeline = new javafx.animation.Timeline();
+                var kv = new javafx.animation.KeyValue(
+                        messageScrollPane.vvalueProperty(), 1.0, javafx.animation.Interpolator.EASE_BOTH
+                );
+                var kf = new javafx.animation.KeyFrame(javafx.util.Duration.millis(200), kv);
+                timeline.getKeyFrames().add(kf);
+                timeline.play();
+            });
+        });
+
+        // Smooth scroll feel
+        messageScrollPane.getStylesheets().add(getClass().getResource("/org/to/telegramfinalproject/CSS/scrollpane.css").toExternalForm());
+        messageScrollPane.setPannable(true);
+        messageScrollPane.setFitToWidth(true);
+        messageScrollPane.setFitToHeight(false);
+        messageScrollPane.getContent().setOnScroll(event -> {
+            double deltaY = event.getDeltaY() * 0.00003; // smaller = smoother
+            messageScrollPane.setVvalue(messageScrollPane.getVvalue() - deltaY);
+        });
+
+        // React to theme changes everywhere
+        themeManager.darkModeProperty().addListener((o, oldVal, isDark) -> syncIconsWithTheme());
+    }
+
+    @FXML
+    private void openSearchPanel() {
+        MainController.getInstance().showSearchPanel();
+    }
+
+    /** Called by main controller when opening a chat. */
+    public void setChat(String chatName, String avatarPath) {
+        this.chatName = chatName;
+
+        // Header text (if present)
+        if (chatTitle != null) chatTitle.setText(chatName);
+        if (chatStatus != null) chatStatus.setText("last seen recently"); // or live status
+
+        // Load avatar if provided
+        if (userAvatar != null && avatarPath != null) {
+            try {
+                Image avatarImg = new Image(getClass().getResourceAsStream(avatarPath));
+                userAvatar.setImage(avatarImg);
+                Circle clip = new Circle(18, 18, 18); // x, y, radius
+                userAvatar.setClip(clip);
+            } catch (Exception e) {
+                System.err.println("Could not load avatar: " + avatarPath);
+            }
+        }
+
+        addSystemMessage("Chat with " + chatName + " opened.");
+        Platform.runLater(() -> messageInput.requestFocus());
+    }
+
+    // ----- actions -----
+
+    private void sendMessage() {
+        String text = messageInput.getText() == null ? "" : messageInput.getText().trim();
+        if (!text.isEmpty()) {
+            addMessage("You", text);
+            messageInput.clear();
+            // TODO: send to server
+        }
+    }
+
+    private void openFileChooser() {
+        FileChooser fc = new FileChooser();
+        fc.setTitle("Select a file to send");
+        File file = fc.showOpenDialog(attachmentButton.getScene().getWindow());
+        if (file != null) {
+            System.out.println("Selected file: " + file.getAbsolutePath());
+            // TODO: actually send file
+            addSystemMessage("Attached file: " + file.getName());
+        }
+    }
+
+    // ----- UI helpers -----
+
+    /** Add a normal message bubble (very simple for now). */
+    public void addMessage(String sender, String content) {
+        Label msg = new Label(sender + ": " + content);
+        msg.setWrapText(true);
+
+        boolean dark = themeManager.isDarkMode();
+        String bubbleColor = dark ? "#20405a" : "#4fa8f0";
+        String textColor   = dark ? "#e8f1f8" : "#0f141a";
+        msg.setStyle(
+                "-fx-background-color: " + bubbleColor + ";" +
+                        "-fx-text-fill: " + textColor + ";" +
+                        "-fx-padding: 6 10; -fx-background-radius: 10;"
+        );
+
+        messageContainer.getChildren().add(msg);
+    }
+
+    private void addSystemMessage(String content) {
+        Label sys = new Label(content);
+        sys.setStyle("-fx-text-fill: gray; -fx-font-size: 11;");
+        messageContainer.getChildren().add(sys);
+        messageScrollPane.layout();
+        messageScrollPane.setVvalue(1.0);
+    }
+
+    /** Update all header/footer icons according to current theme. */
+    private void syncIconsWithTheme() {
+        boolean dark = themeManager.isDarkMode();
+        // We use “_light” icons on dark backgrounds, and “_dark” on light backgrounds.
+        String suffix = dark ? "_light.png" : "_dark.png";
+
+        // attachment
+        if (attachmentIcon != null) {
+            attachmentIcon.setImage(loadIcon("attachment" + suffix));
+        }
+        // send
+        if (sendIcon != null) {
+            sendIcon.setImage(loadIcon("send_cyan2.png"));
+        }
+        // header icons
+        if (searchIcon != null) {
+            searchIcon.setImage(loadIcon("search" + suffix));
+        }
+        if (moreIcon != null) {
+            moreIcon.setImage(loadIcon("more" + suffix));
+        }
+
+        // header text tint (if you’re not fully relying on CSS)
+        if (chatTitle != null) chatTitle.setStyle(dark ? "-fx-text-fill:#e8f1f8;" : "-fx-text-fill:#0f141a;");
+        if (chatStatus != null) chatStatus.setStyle(dark ? "-fx-text-fill:#8ea1b2;" : "-fx-text-fill:#7e8a97;");
+
+        // View profile icon in more button
+        ((ImageView) viewProfileItem.getGraphic())
+                .setImage(loadIcon("view_profile" + suffix));
+    }
+
+    private Image loadIcon(String filename) {
+        var url = getClass().getResource(ICON_BASE + filename);
+        if (url == null) {
+            System.err.println("Icon not found: " + ICON_BASE + filename);
+            return null;
+        }
+        return new Image(url.toExternalForm());
+    }
+}

src/main/java/org/to/telegramfinalproject/UI/MainController.java

@@ -6,13 +6,9 @@ import javafx.fxml.FXML;
 import javafx.fxml.FXMLLoader;
 import javafx.geometry.Pos;
 import javafx.scene.Node;
-import javafx.scene.control.Button;
+import javafx.scene.control.*;
-import javafx.scene.control.ScrollPane;
-import javafx.scene.control.SplitPane;
-import javafx.scene.control.TextField;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
-import javafx.scene.layout.BorderPane;
 import javafx.scene.layout.Pane;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
@@ -22,23 +18,46 @@ import java.io.IOException;
 
 public class MainController {
 
+    // === LEFT PANE ===
+    @FXML private VBox chatListContainer;     // inside the scrollPane
+    @FXML private ScrollPane scrollPane;      // chat list scroll
+    @FXML private VBox chatSearchPane;        // search results panel
+    @FXML private ListView<String> chatSearchResults;
+    @FXML private MenuButton scopeDropdown;
+
+    // === TOP BAR ===
+    @FXML private TextField searchBar;        // global search bar
+    @FXML private Button menuButton;
+
+    // === RIGHT PANE ===
+    @FXML private VBox leftPane;
+    @FXML private javafx.scene.layout.StackPane chatDisplayArea;
+    @FXML private Label placeholderLabel;
+
+    // === Main root ===
     @FXML private StackPane mainRoot;
-    @FXML private VBox chatListContainer;
+    @FXML private SplitPane mainSplitPane;
-    @FXML private StackPane chatDisplayArea;
+
+    // === Sidebar ===
     @FXML private Pane overlay;
     @FXML private ImageView menuIcon;
-    @FXML private ScrollPane scrollPane;
-    @FXML private SplitPane mainSplitPane;
-    @FXML private VBox leftPane;
-    @FXML private Button menuButton;
-    @FXML private TextField searchBar;
 
+    // === STATE ===
+    private static MainController instance;
     private Node sidebarRoot;
     private boolean isSidebarOpen = false;
 
     // Add ThemeManager handle
     private final ThemeManager themeManager = ThemeManager.getInstance();
 
+    public MainController() {
+        instance = this;
+    }
+
+    public static MainController getInstance() {
+        return instance;
+    }
+
     @FXML
     public void initialize() {
         addSampleChats();
@@ -79,6 +98,44 @@ public class MainController {
         if (!mainSplitPane.getDividers().isEmpty()) {
             mainSplitPane.getDividers().get(0).positionProperty().addListener((o, ov, nv) -> clampDivider());
         }
+
+        // Search in chat field listener
+        searchBar.textProperty().addListener((obs, oldV, newV) -> {
+            if (!chatSearchPane.isVisible()) return; // only react if in search mode
+
+            if (newV.trim().isEmpty()) {
+                chatSearchResults.setVisible(false);
+                chatSearchResults.setManaged(false);
+            } else {
+                chatSearchResults.setVisible(true);
+                chatSearchResults.setManaged(true);
+                chatSearchResults.getItems().setAll(
+                        "Result 1: " + newV,
+                        "Result 2: " + newV,
+                        "Result 3: " + newV
+                );
+            }
+        });
+    }
+
+    // Called from ChatPageController when user clicks search button
+    public void showSearchPanel() {
+        scrollPane.setVisible(false);
+        scrollPane.setManaged(false);
+
+        chatSearchPane.setVisible(true);
+        chatSearchPane.setManaged(true);
+
+        searchBar.requestFocus();
+    }
+
+    @FXML
+    public void closeSearchPanel() {
+        chatSearchPane.setVisible(false);
+        chatSearchPane.setManaged(false);
+
+        scrollPane.setVisible(true);
+        scrollPane.setManaged(true);
     }
 
     private void addSampleChats() {
@@ -117,8 +174,20 @@ public class MainController {
     }
 
     private void openChat(String chatName) {
-        chatDisplayArea.getChildren().clear();
+        try {
-        chatDisplayArea.getChildren().add(new javafx.scene.control.Label("Chat with " + chatName));
+            FXMLLoader loader = new FXMLLoader(getClass().getResource("/org/to/telegramfinalproject/Fxml/chat_page.fxml"));
+            Node chatPage = loader.load();
+
+            ChatPageController controller = loader.getController();
+            controller.setChat("Alice", "/org/to/telegramfinalproject/Avatars/profile_test.png");
+
+
+            chatDisplayArea.getChildren().clear();
+            chatDisplayArea.getChildren().add(chatPage);
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     @FXML

src/main/java/org/to/telegramfinalproject/UI/SidebarMenuController.java

@@ -3,7 +3,6 @@ package org.to.telegramfinalproject.UI;
 import javafx.animation.TranslateTransition;
 import javafx.application.Platform;
 import javafx.fxml.FXML;
-import javafx.scene.Scene;
 import javafx.scene.control.Button;
 import javafx.scene.control.Label;
 import javafx.scene.image.Image;
@@ -43,7 +42,7 @@ public class SidebarMenuController {
     @FXML
     public void initialize() {
         // Load default profile image
-        Image profile = loadImage("/org/to/telegramfinalproject/Images/profile.png");
+        Image profile = loadImage("/org/to/telegramfinalproject/Avatars/profile.png");
         if (profile != null) profileImage.setImage(profile);
 
         setupButtonActions();

src/main/java/org/to/telegramfinalproject/UI/TelegramApplication.java

@@ -4,6 +4,7 @@ package org.to.telegramfinalproject.UI;
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
+import javafx.scene.image.Image;
 import javafx.stage.Stage;
 
 import java.io.IOException;
@@ -18,6 +19,11 @@ public class TelegramApplication extends Application {
 
         stage.setTitle("Telegram");
         stage.setScene(scene);
+
+        // Add icon to the stage
+        Image icon = new Image(TelegramApplication.class.getResourceAsStream("/org/to/telegramfinalproject/Images/telegram_icon.png"));
+        stage.getIcons().add(icon);
+
         stage.show();
     }
     public static void main(String[] args) {

src/main/resources/org/to/telegramfinalproject/CSS/dark_theme.css

@@ -58,3 +58,121 @@
     -fx-border-width: 0 1px 0 1px; /* 1px vertical line */
     -fx-padding: 0 0 0 0.5px; /* big invisible hitbox for the mouse */
 }
+
+.placeholder-label {
+    -fx-text-fill: #aaa;              /* text color */
+    -fx-font-size: 13px;
+    -fx-font-weight: bold;
+    -fx-background-color: #2a2a2a;    /* bubble background */
+    -fx-padding: 8 10 8 10;         /* top/right/bottom/left spacing */
+    -fx-background-radius: 20;        /* rounded corners */
+}
+
+/* ===== Chat page (dark) ===== */
+.chat-root { -fx-background-color: #0f1c26; }
+
+/* Header bar */
+.chat-header {
+    -fx-background-color: #0f1c26;
+    -fx-border-color: #2e3948;
+    -fx-border-width: 0 0 1 0;
+}
+.chat-title  { -fx-text-fill: #e8f1f8; -fx-font-size: 14px; -fx-font-weight: bold; }
+.chat-status { -fx-text-fill: #8ea1b2; -fx-font-size: 12px; }
+
+/* Icon-only buttons */
+.icon-btn {
+    -fx-background-color: transparent;
+    -fx-padding: 6 8 6 8;
+    -fx-cursor: hand;
+}
+.icon-btn:hover {
+    -fx-background-color: rgba(255,255,255,0.06);
+    -fx-background-radius: 6;
+}
+
+/* Messages area */
+.chat-scroll { -fx-background-color: transparent; }
+
+/* Input bar */
+.chat-input-bar {
+    -fx-background-color: #15222d;
+    -fx-border-color: #2e3948;
+    -fx-border-width: 1 0 0 0;
+}
+
+/* Send button (telegram-ish blue) */
+.send-btn {
+    -fx-background-color: #2ca4ff;
+    -fx-background-radius: 18;
+    -fx-padding: 8 12 8 12;
+    -fx-cursor: hand;
+}
+.send-btn:hover { -fx-background-color: #1996f3; }
+
+/* Active/empty states (matches controller’s styleClass) */
+.send-btn.send-empty {
+    -fx-opacity: 0.5; /* look inactive */
+}
+.send-btn.send-ready {
+    -fx-opacity: 1.0; /* fully active */
+}
+.send-btn:disabled {
+    -fx-opacity: 0.4;
+    -fx-cursor: default;
+}
+
+/* Input bubble */
+.msg-input {
+    -fx-background-color: white;
+    -fx-background-radius: 18;
+    -fx-padding: 6 12 6 12;
+    -fx-text-fill: #0f141a;
+    -fx-prompt-text-fill: #9aa6b2;
+    -fx-border-color: transparent;
+
+    -fx-control-inner-background: white;
+    -fx-focus-color: transparent;
+    -fx-faint-focus-color: transparent;
+}
+.msg-input .scroll-pane {
+    -fx-vbar-policy: never;
+    -fx-hbar-policy: never;
+    -fx-background-color: transparent;
+}
+.msg-input .scroll-pane .corner {
+    -fx-background-color: transparent;
+}
+
+.context-menu {
+    -fx-background-color: #1b2735;
+    -fx-background-radius: 6;
+    -fx-padding: 4;
+    -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.4), 8, 0, 0, 2);
+}
+
+.menu-item {
+    -fx-font-size: 13px;
+    -fx-text-fill: #e8f1f8;
+    -fx-padding: 6 12;
+}
+
+.menu-item:focused {
+    -fx-background-color: rgba(255,255,255,0.08);
+    -fx-background-radius: 4;
+}
+
+/* ===== Search panel ===== */
+.chat-search-pane {
+    -fx-background-color: #1b2735; /* matches sidebar */
+}
+
+.chat-search-bar {
+    -fx-background-color: transparent;
+    -fx-padding: 8 10;
+}
+
+.search-placeholder {
+    -fx-text-fill: #8ea1b2;
+    -fx-font-size: 13px;
+}

src/main/resources/org/to/telegramfinalproject/CSS/light_theme.css

@@ -58,3 +58,121 @@
     -fx-border-width: 0 1px 0 1px; /* 1px vertical line */
     -fx-padding: 0 0 0 0.5px; /* big invisible hitbox for the mouse */
 }
+
+.placeholder-label {
+    -fx-text-fill: #2e3948;              /* text color */
+    -fx-font-size: 13px;
+    -fx-font-weight: bold;
+    -fx-background-color: #f1f1f1;    /* bubble background */
+    -fx-padding: 8 10 8 10;         /* top/right/bottom/left spacing */
+    -fx-background-radius: 20;        /* rounded corners */
+}
+
+/* ===== Chat page (light) ===== */
+.chat-root { -fx-background-color: #ffffff; }
+
+/* Header bar */
+.chat-header {
+    -fx-background-color: #ffffff;
+    -fx-border-color: #e6e6e6;
+    -fx-border-width: 0 0 1 0;
+}
+.chat-title  { -fx-text-fill: #0f141a; -fx-font-size: 14px; -fx-font-weight: bold; }
+.chat-status { -fx-text-fill: #7e8a97; -fx-font-size: 12px; }
+
+/* Icon-only buttons */
+.icon-btn {
+    -fx-background-color: transparent;
+    -fx-padding: 6 8 6 8;
+    -fx-cursor: hand;
+}
+.icon-btn:hover {
+    -fx-background-color: rgba(0,0,0,0.05);
+    -fx-background-radius: 6;
+}
+
+/* Messages area */
+.chat-scroll { -fx-background-color: transparent; }
+
+/* Input bar */
+.chat-input-bar {
+    -fx-background-color: #f5f5f5;
+    -fx-border-color: #e6e6e6;
+    -fx-border-width: 1 0 0 0;
+}
+
+/* Send button (telegram-ish blue) */
+.send-btn {
+    -fx-background-color: #2ca4ff;
+    -fx-background-radius: 18;
+    -fx-padding: 8 12 8 12;
+    -fx-cursor: hand;
+}
+.send-btn:hover { -fx-background-color: #1996f3; }
+
+/* Active/empty states (matches controller’s styleClass) */
+.send-btn.send-empty {
+    -fx-opacity: 0.5; /* look inactive */
+}
+.send-btn.send-ready {
+    -fx-opacity: 1.0; /* fully active */
+}
+.send-btn:disabled {
+    -fx-opacity: 0.4;
+    -fx-cursor: default;
+}
+
+/* Input bubble */
+.msg-input {
+    -fx-background-color: white;
+    -fx-background-radius: 18;
+    -fx-padding: 6 12 6 12;
+    -fx-text-fill: #0f141a;
+    -fx-prompt-text-fill: #9aa6b2;
+    -fx-border-color: transparent;
+
+    -fx-control-inner-background: white;
+    -fx-focus-color: transparent;
+    -fx-faint-focus-color: transparent;
+}
+.msg-input .scroll-pane {
+    -fx-vbar-policy: never;
+    -fx-hbar-policy: never;
+    -fx-background-color: transparent;
+}
+.msg-input .scroll-pane .corner {
+    -fx-background-color: transparent;
+}
+
+.context-menu {
+    -fx-background-color: white;
+    -fx-background-radius: 6;
+    -fx-padding: 4;
+    -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 8, 0, 0, 2);
+}
+
+.menu-item {
+    -fx-font-size: 13px;
+    -fx-text-fill: #0f141a;
+    -fx-padding: 6 12;
+}
+
+.menu-item:focused {
+    -fx-background-color: #e6e6e6;
+    -fx-background-radius: 4;
+}
+
+/* ===== Search panel ===== */
+.chat-search-pane {
+    -fx-background-color: #f5f5f5;
+}
+
+.chat-search-bar {
+    -fx-background-color: transparent;
+    -fx-padding: 8 10;
+}
+
+.search-placeholder {
+    -fx-text-fill: #7e8a97;
+    -fx-font-size: 13px;
+}

src/main/resources/org/to/telegramfinalproject/Fxml/chat_page.fxml

@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.image.Image?>
+<?import javafx.scene.image.ImageView?>
+<?import javafx.scene.layout.*?>
+
+<VBox xmlns="http://javafx.com/javafx/17"
+      xmlns:fx="http://javafx.com/fxml"
+      fx:controller="org.to.telegramfinalproject.UI.ChatPageController"
+      spacing="0"
+      styleClass="chat-root">
+
+    <!-- HEADER: avatar + name/status (left) | search + more (right) -->
+    <HBox fx:id="chatHeader" spacing="10" styleClass="chat-header">
+        <padding>
+            <Insets top="8" right="12" bottom="8" left="12"/>
+        </padding>
+
+        <!-- Avatar -->
+        <ImageView fx:id="userAvatar" fitWidth="36" fitHeight="36" preserveRatio="true"/>
+
+        <!-- Title + status -->
+        <VBox alignment="CENTER_LEFT">
+            <Label fx:id="chatTitle" text="User name" styleClass="chat-title"/>
+            <Label fx:id="chatStatus" text="last seen recently" styleClass="chat-status"/>
+        </VBox>
+
+        <Region HBox.hgrow="ALWAYS"/>
+
+        <!-- Search-in-chat -->
+        <Button fx:id="searchInChatButton" styleClass="icon-btn" onAction="#openSearchPanel">
+            <graphic>
+                <ImageView fx:id="searchIcon" fitWidth="20" fitHeight="20" preserveRatio="true">
+                    <image>
+                        <Image url="@/org/to/telegramfinalproject/Icons/search_light.png"/>
+                    </image>
+                </ImageView>
+            </graphic>
+        </Button>
+
+        <!-- More / overflow -->
+        <Button fx:id="moreButton" styleClass="icon-btn">
+            <graphic>
+                <ImageView fx:id="moreIcon" fitWidth="18" fitHeight="18" preserveRatio="true">
+                    <image>
+                        <Image url="@/org/to/telegramfinalproject/Icons/more_light.png"/>
+                    </image>
+                </ImageView>
+            </graphic>
+            <contextMenu>
+                <ContextMenu fx:id="moreMenu">
+                    <items>
+                        <MenuItem fx:id="viewProfileItem" text="View profile">
+                            <graphic>
+                                <ImageView fitWidth="16" fitHeight="16" preserveRatio="true">
+                                    <image>
+                                        <Image url="@/org/to/telegramfinalproject/Icons/view_profile_light.png"/>
+                                    </image>
+                                </ImageView>
+                            </graphic>
+                        </MenuItem>
+                        <MenuItem fx:id="deleteChatItem" text="Delete chat" style="-fx-text-fill: red;">
+                            <graphic>
+                                <ImageView fitWidth="16" fitHeight="16" preserveRatio="true">
+                                    <image>
+                                        <Image url="@/org/to/telegramfinalproject/Icons/delete_red.png"/>
+                                    </image>
+                                </ImageView>
+                            </graphic>
+                        </MenuItem>
+                    </items>
+                </ContextMenu>
+            </contextMenu>
+        </Button>
+    </HBox>
+
+    <!-- MESSAGES -->
+    <ScrollPane fx:id="messageScrollPane"
+                fitToWidth="true"
+                vbarPolicy="AS_NEEDED"
+                hbarPolicy="NEVER"
+                VBox.vgrow="ALWAYS"
+                styleClass="chat-scroll">
+        <content>
+            <VBox fx:id="messageContainer" spacing="10">
+                <padding>
+                    <Insets top="10" right="10" bottom="10" left="10"/>
+                </padding>
+            </VBox>
+        </content>
+    </ScrollPane>
+
+    <!-- INPUT BAR -->
+    <HBox fx:id="inputBar" spacing="8" styleClass="chat-input-bar">
+        <padding>
+            <Insets top="8" right="12" bottom="8" left="12"/>
+        </padding>
+
+        <!-- Attachment -->
+        <Button fx:id="attachmentButton" styleClass="icon-btn">
+            <graphic>
+                <ImageView fx:id="attachmentIcon" fitWidth="20" fitHeight="20" preserveRatio="true">
+                    <image>
+                        <Image url="@/org/to/telegramfinalproject/Icons/attachment_light.png"/>
+                    </image>
+                </ImageView>
+            </graphic>
+        </Button>
+
+        <!-- Expanding input -->
+        <TextArea fx:id="messageInput"
+                  HBox.hgrow="ALWAYS"
+                  promptText="Write a message..."
+                  styleClass="msg-input"
+                  wrapText="true"
+                  prefRowCount="1"
+                  minHeight="40"
+                  maxHeight="120"
+                  VBox.vgrow="NEVER" />
+
+        <!-- Send -->
+        <Button fx:id="sendButton" styleClass="send-btn">
+            <graphic>
+                <ImageView fx:id="sendIcon" fitWidth="20" fitHeight="20" preserveRatio="true">
+                    <image>
+                        <Image url="@/org/to/telegramfinalproject/Icons/send_cyan2.png"/>
+                    </image>
+                </ImageView>
+            </graphic>
+        </Button>
+    </HBox>
+</VBox>

src/main/resources/org/to/telegramfinalproject/Fxml/main.fxml

@@ -1,69 +1,134 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<?import java.lang.*?>
 <?import javafx.geometry.*?>
-<?import javafx.scene.text.*?>
 <?import javafx.scene.control.*?>
 <?import javafx.scene.image.*?>
 <?import javafx.scene.layout.*?>
 <?import javafx.scene.text.Font?>
 
-<StackPane fx:id="mainRoot" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="org.to.telegramfinalproject.UI.MainController">
+<StackPane fx:id="mainRoot"
+           xmlns="http://javafx.com/javafx/8"
+           xmlns:fx="http://javafx.com/fxml/1"
+           fx:controller="org.to.telegramfinalproject.UI.MainController">
 
     <children>
+        <!-- SplitPane: left (chat list / search) + right (chat panel) -->
+        <SplitPane fx:id="mainSplitPane"
+                   dividerPositions="0.32"
+                   orientation="HORIZONTAL"
+                   prefHeight="700" prefWidth="1100"
+                   styleClass="thin-splitpane">
+            <items>
 
-        <!-- Use SplitPane so the two sides are resizable -->
+                <!-- LEFT: Sidebar -->
-        <SplitPane fx:id="mainSplitPane" dividerPositions="0.32" orientation="HORIZONTAL" prefHeight="700" prefWidth="1100" styleClass="thin-splitpane">
+                <VBox fx:id="leftPane" minWidth="72" style="-fx-background-color: #FFFFFF;">
-   <items>
+
-   
+                    <!-- Top bar (always visible) -->
-               <!-- LEFT: Chat list -->
+                    <HBox spacing="10">
-               <VBox fx:id="leftPane" minWidth="72" spacing="10" style="-fx-background-color: #FFFFFF;"> <!-- keep at least avatar width when collapsed -->
+                        <padding>
-                   <children>
+                            <Insets bottom="10" left="10" right="10" top="10"/>
-                       <HBox spacing="10">
+                        </padding>
-                           <padding>
+                        <children>
-                               <Insets bottom="10" left="10" right="10" top="10" />
+                            <Button fx:id="menuButton" minHeight="29.0" minWidth="40"
-                           </padding>
+                                    onAction="#toggleSidebar"
-                           <children>
+                                    prefHeight="29.0" prefWidth="40.0"
-                               <Button fx:id="menuButton" minHeight="29.0" minWidth="40" onAction="#toggleSidebar" prefHeight="29.0" prefWidth="40.0" style="-fx-background-color: transparent;">
+                                    style="-fx-background-color: transparent;">
-                                   <graphic>
+                                <graphic>
-                                       <ImageView fx:id="menuIcon" fitHeight="24" fitWidth="17" preserveRatio="true" smooth="true">
+                                    <ImageView fx:id="menuIcon" fitHeight="24" fitWidth="17"
-                                           <image>
+                                               preserveRatio="true" smooth="true">
-                                               <Image url="@/org/to/telegramfinalproject/Icons/menu_dark.png" />
+                                        <image>
-                                           </image>
+                                            <Image url="@/org/to/telegramfinalproject/Icons/menu_dark.png"/>
-                                       </ImageView>
+                                        </image>
-                                   </graphic>
+                                    </ImageView>
-                               </Button>
+                                </graphic>
-   
+                            </Button>
-                               <TextField fx:id="searchBar" prefHeight="36" prefWidth="430.0" promptText="Search" style="-fx-background-color: #f5f5f5; -fx-background-radius: 15;" />
+
-                           </children>
+                            <TextField fx:id="searchBar"
-                       </HBox>
+                                       prefHeight="36" prefWidth="430.0"
-   
+                                       promptText="Search"
-                       <ScrollPane fx:id="scrollPane" fitToWidth="true" hbarPolicy="NEVER" style="-fx-background-color: transparent;" vbarPolicy="AS_NEEDED">
+                                       style="-fx-background-color: #f5f5f5; -fx-background-radius: 15;"/>
-                           <content>
+                        </children>
-                               <VBox fx:id="chatListContainer" spacing="5" style="-fx-background-color: transparent;">
+                    </HBox>
-                                   <padding>
+
-                                       <Insets bottom="10" left="10" right="10" top="10" />
+                    <!-- Content area (chat list vs search) -->
-                                   </padding>
+                    <StackPane VBox.vgrow="ALWAYS">
-                               </VBox>
+
-                           </content>
+                        <!-- Chat list (default) -->
-                       </ScrollPane>
+                        <ScrollPane fx:id="scrollPane" fitToWidth="true" hbarPolicy="NEVER"
-                   </children>
+                                    style="-fx-background-color: transparent;"
-               </VBox>
+                                    vbarPolicy="AS_NEEDED"
-   
+                                    visible="true" managed="true">
-               <!-- RIGHT: Chat panel -->
+                            <content>
-               <StackPane fx:id="chatDisplayArea" minWidth="360" style="-fx-background-color: #FAFAFA;"> <!-- don't let chat page collapse -->
+                                <VBox fx:id="chatListContainer" spacing="5"
-                   <children>
+                                      style="-fx-background-color: transparent;">
-                       <Label style="-fx-text-fill: #888888;" text="Select a chat to start messaging">
+                                    <padding>
-                           <font>
+                                        <Insets bottom="10" left="10" right="10" top="10"/>
-                               <Font size="15" />
+                                    </padding>
-                           </font>
+                                </VBox>
-                       </Label>
+                            </content>
-                   </children>
+                        </ScrollPane>
-               </StackPane>
+
-   </items>
+                        <!-- Search panel (hidden initially) -->
+                        <VBox fx:id="chatSearchPane" visible="false" managed="false"
+                              styleClass="chat-search-pane">
+
+                            <!-- Section label -->
+                            <Label text="Search messages in"
+                                   style="-fx-text-fill: #7e8a97; -fx-font-size: 11px; -fx-padding: 10 0 5 10;"/>
+
+                            <!-- Tiny separator line -->
+                            <Separator style="-fx-background-color: #e6e6e6;" prefHeight="0.5"/>
+
+                            <!-- User profile + "This chat" + close -->
+                            <HBox spacing="10" alignment="CENTER_LEFT" style="-fx-padding: 8 10; -fx-border-color: #e6e6e6; -fx-border-width: 0 0 1 0;">
+                                <!-- Avatar -->
+                                <ImageView fx:id="searchChatAvatar" fitWidth="32" fitHeight="32" preserveRatio="true">
+                                    <image>
+                                        <Image url="@/org/to/telegramfinalproject/Avatars/profile_test.png"/>
+                                    </image>
+                                </ImageView>
+
+                                <!-- scope -->
+                                <VBox alignment="CENTER_LEFT">
+                                    <Label text="This chat" style="-fx-text-fill: #7e8a97; -fx-font-size: 11px;"/>
+                                </VBox>
+                                <Region HBox.hgrow="ALWAYS"/>
+                                <!-- Close button -->
+                                <Button text="✕" onAction="#closeSearchPanel"
+                                        style="-fx-background-color: transparent; -fx-cursor: hand;"/>
+                            </HBox>
+
+                            <!-- Placeholder -->
+                            <VBox alignment="CENTER" spacing="10" prefHeight="300">
+                                <ImageView fx:id="searchIconLarge" fitWidth="64" fitHeight="64" preserveRatio="true"/>
+                                <Label text="Search for messages" styleClass="search-placeholder"/>
+                            </VBox>
+
+                            <!-- Results -->
+                            <ListView fx:id="chatSearchResults" visible="false" managed="false"/>
+                        </VBox>
+                    </StackPane>
+                </VBox>
+
+                <!-- RIGHT: Chat panel -->
+                <StackPane fx:id="chatDisplayArea" minWidth="360" style="-fx-background-color: #FAFAFA;">
+                    <children>
+                        <Label fx:id="placeholderLabel" alignment="CENTER"
+                               prefHeight="21.0" prefWidth="248.0"
+                               styleClass="placeholder-label"
+                               text="Select a chat to start messaging">
+                            <font><Font size="15"/></font>
+                        </Label>
+                    </children>
+                </StackPane>
+            </items>
         </SplitPane>
 
         <!-- Overlay (for sidebar) -->
-        <Pane fx:id="overlay" mouseTransparent="true" onMouseClicked="#closeSidebar" style="-fx-background-color: rgba(0,0,0,0.3);" visible="false" />
+        <Pane fx:id="overlay"
+              mouseTransparent="true"
+              onMouseClicked="#closeSidebar"
+              style="-fx-background-color: rgba(0,0,0,0.3);"
+              visible="false"/>
     </children>
 </StackPane>