minor changes

Cargo.lock

@@ -421,7 +421,7 @@ dependencies = [
 
 [[package]]
 name = "client"
-version = "0.3.5"
+version = "0.3.13"
 dependencies = [
  "async-trait",
  "common",
@@ -432,6 +432,7 @@ dependencies = [
  "prost",
  "ratatui",
  "serde",
+ "time",
  "tokio",
  "toml",
  "tonic",
@@ -461,7 +462,7 @@ dependencies = [
 
 [[package]]
 name = "common"
-version = "0.3.5"
+version = "0.3.13"
 dependencies = [
  "prost",
  "serde",
@@ -713,9 +714,9 @@ dependencies = [
 
 [[package]]
 name = "deranged"
-version = "0.3.11"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b42b6fa04a440b495c8b04d0e71b707c585f83cb9cb28cf8cd0d976c315e31b4"
+checksum = "9c9e6a11ca8224451684bc0d7d5a7adbf8f2fd6887261a1cfc3c0432f9d4068e"
 dependencies = [
  "powerfmt",
 ]
@@ -2592,7 +2593,7 @@ dependencies = [
 
 [[package]]
 name = "server"
-version = "0.3.5"
+version = "0.3.13"
 dependencies = [
  "bcrypt",
  "chrono",
@@ -3212,9 +3213,9 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.39"
+version = "0.3.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dad298b01a40a23aac4580b67e3dbedb7cc8402f3592d7f49469de2ea4aecdd8"
+checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
 dependencies = [
  "deranged",
  "itoa",
@@ -3229,15 +3230,15 @@ dependencies = [
 
 [[package]]
 name = "time-core"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "765c97a5b985b7c11d7bc27fa927dc4fe6af3a6dfb021d28deb60d3bf51e76ef"
+checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
 
 [[package]]
 name = "time-macros"
-version = "0.2.20"
+version = "0.2.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8093bc3e81c3bc5f7879de09619d06c9a5a5e45ca44dfeeb7225bae38005c5c"
+checksum = "3526739392ec93fd8b359c8e98514cb3e8e021beb4e5f597b00a0221f8ed8a49"
 dependencies = [
  "num-conv",
  "time-core",

Cargo.toml

@@ -5,7 +5,7 @@ resolver = "2"
 [workspace.package]
 # TODO: idk how to do the name, fix later
 # name = "Multieko2"
-version = "0.3.5"
+version = "0.3.13"
 edition = "2021"
 license = "GPL-3.0-or-later"
 authors = ["Filip Priečinský <filippriec@gmail.com>"]

README.md

@@ -1,5 +1,7 @@
 # Hey
 
+This is only work in progress, until release 1.0.0 this is for development use cases only.
+
 I run development like this:
 
 Server:

client/Cargo.toml

@@ -15,6 +15,7 @@ lazy_static = "1.5.0"
 prost = "0.13.5"
 ratatui = "0.29.0"
 serde = { version = "1.0.218", features = ["derive"] }
+time = "0.3.41"
 tokio = { version = "1.43.0", features = ["full", "macros"] }
 toml = "0.8.20"
 tonic = "0.12.3"

client/config.toml

@@ -2,6 +2,8 @@
 [keybindings]
 
 enter_command_mode = [":", "ctrl+;"]
+next_buffer = ["ctrl+l"]
+previous_buffer = ["ctrl+h"] 
 
 [keybindings.general]
 move_up = ["k", "Up"]

client/src/components/common/status_line.rs

@@ -1,11 +1,11 @@
-// src/client/components/handlers/status_line.rs
 use ratatui::{
-    widgets::Paragraph,
     style::Style,
     layout::Rect,
     Frame,
     text::{Line, Span},
+    widgets::Paragraph,
 };
+use unicode_width::UnicodeWidthStr;
 use crate::config::colors::themes::Theme;
 use std::path::Path;
 
@@ -15,17 +15,11 @@ pub fn render_status_line(
     current_dir: &str,
     theme: &Theme,
     is_edit_mode: bool,
+    current_fps: f64,
 ) {
-    // Program name and version
     let program_info = format!("multieko2 v{}", env!("CARGO_PKG_VERSION"));
+    let mode_text = if is_edit_mode { "[EDIT]" } else { "[READ-ONLY]" };
 
-    let mode_text = if is_edit_mode {
-        "[EDIT]"
-    } else {
-        "[READ-ONLY]"
-    };
-
-    // Shorten the current directory path
     let home_dir = dirs::home_dir().map(|p| p.to_string_lossy().into_owned()).unwrap_or_default();
     let display_dir = if current_dir.starts_with(&home_dir) {
         current_dir.replacen(&home_dir, "~", 1)
@@ -33,47 +27,51 @@ pub fn render_status_line(
         current_dir.to_string()
     };
 
-    // Create the full status line text
-    let full_text = format!("{} | {} | {}", mode_text, display_dir, program_info);
-
-    // Check if the full text fits in the available width
     let available_width = area.width as usize;
-    let mut display_text = if full_text.len() <= available_width {
-        // If it fits, use the full text
-        full_text
+    let mode_width = UnicodeWidthStr::width(mode_text);
+    let program_info_width = UnicodeWidthStr::width(program_info.as_str());
+    let fps_text = format!("{:.0} FPS", current_fps);
+    let fps_width = UnicodeWidthStr::width(fps_text.as_str());
+    let separator = " | ";
+    let separator_width = UnicodeWidthStr::width(separator);
+
+    let fixed_width_with_fps = mode_width + separator_width + separator_width + 
+        program_info_width + separator_width + fps_width;
+    let show_fps = fixed_width_with_fps < available_width;
+
+    let remaining_width_for_dir = available_width.saturating_sub(
+        mode_width + separator_width + separator_width + program_info_width +
+        if show_fps { separator_width + fps_width } else { 0 }
+    );
+
+    let dir_display_text = if UnicodeWidthStr::width(display_dir.as_str()) <= remaining_width_for_dir {
+        display_dir
     } else {
-        // If it doesn't fit, prioritize mode and program info, and show only the directory name
         let dir_name = Path::new(current_dir)
             .file_name()
             .and_then(|n| n.to_str())
             .unwrap_or(current_dir);
-        format!("{} | {} | {}", mode_text, dir_name, program_info)
+        if UnicodeWidthStr::width(dir_name) <= remaining_width_for_dir {
+            dir_name.to_string()
+        } else {
+            dir_name.chars().take(remaining_width_for_dir).collect()
+        }
     };
 
-    // If even the shortened version overflows, truncate it
-    if display_text.len() > available_width {
-        display_text = display_text.chars().take(available_width).collect();
-    }
-
-    // Create the status line text using Line and Span
-    let status_line = Line::from(vec![
+    let mut spans = vec![
         Span::styled(mode_text, Style::default().fg(theme.accent)),
         Span::styled(" | ", Style::default().fg(theme.border)),
-        Span::styled(
-            display_text.split(" | ").nth(1).unwrap_or(""), // Directory part
-            Style::default().fg(theme.fg),
-        ),
+        Span::styled(dir_display_text, Style::default().fg(theme.fg)),
         Span::styled(" | ", Style::default().fg(theme.border)),
-        Span::styled(
-            program_info,
-            Style::default()
-                .fg(theme.secondary)
-                .add_modifier(ratatui::style::Modifier::BOLD),
-        ),
-    ]);
+        Span::styled(program_info, Style::default().fg(theme.secondary)),
+    ];
 
-    // Render the status line
-    let paragraph = Paragraph::new(status_line)
+    if show_fps {
+        spans.push(Span::styled(" | ", Style::default().fg(theme.border)));
+        spans.push(Span::styled(fps_text, Style::default().fg(theme.secondary)));
+    }
+
+    let paragraph = Paragraph::new(Line::from(spans))
         .style(Style::default().bg(theme.bg));
 
     f.render_widget(paragraph, area);

client/src/components/handlers/buffer_list.rs

@@ -1,7 +1,7 @@
 // src/components/handlers/buffer_list.rs
 
 use crate::config::colors::themes::Theme;
-use crate::state::app::state::AppState;
+use crate::state::app::buffer::BufferState;
 use ratatui::{
     layout::{Alignment, Rect},
     style::{Style, Stylize},
@@ -10,12 +10,13 @@ use ratatui::{
     Frame,
 };
 use unicode_width::UnicodeWidthStr;
+use crate::functions::common::buffer::get_view_layer;
 
 pub fn render_buffer_list(
     f: &mut Frame,
     area: Rect,
     theme: &Theme,
-    app_state: &AppState,
+    buffer_state: &BufferState,
 ) {
     // --- Style Definitions ---
     let active_style = Style::default()
@@ -26,13 +27,23 @@ pub fn render_buffer_list(
         .fg(theme.fg)
         .bg(theme.bg);
 
+    // --- Determine Active Layer ---
+    let active_layer = match buffer_state.history.get(buffer_state.active_index) {
+        Some(view) => get_view_layer(view),
+        None => 1,
+    };
+
     // --- Create Spans ---
     let mut spans = Vec::new();
-    let history = &app_state.ui.buffer_history;
     let mut current_width = 0;
 
-    for (i, view) in history.iter().enumerate() {
-        let is_active = i == app_state.ui.active_buffer_index;
+    for (original_index, view) in buffer_state.history.iter().enumerate() {
+        // Filter: Only process views matching the active layer
+        if get_view_layer(view) != active_layer {
+            continue;
+        }
+
+        let is_active = original_index == buffer_state.active_index;
         let buffer_name = view.display_name();
         let buffer_text = format!(" {} ", buffer_name);
         let text_width = UnicodeWidthStr::width(buffer_text.as_str());
@@ -51,10 +62,12 @@ pub fn render_buffer_list(
 
     // --- Filler Span ---
     let remaining_width = area.width.saturating_sub(current_width as u16);
-    spans.push(Span::styled(
-        " ".repeat(remaining_width as usize),
-        inactive_style,
-    ));
+    if !spans.is_empty() || remaining_width > 0 {
+        spans.push(Span::styled(
+                " ".repeat(remaining_width as usize),
+                inactive_style,
+        ));
+    }
 
     // --- Render ---
     let buffer_line = Line::from(spans);

client/src/functions/common.rs

@@ -1,2 +1,5 @@
 // src/functions/common.rs
 
+pub mod buffer;
+
+pub use buffer::*;

client/src/functions/common/buffer.rs

@@ -0,0 +1,35 @@
+// src/functions/common/buffer.rs
+
+use crate::state::app::buffer::BufferState;
+use crate::state::app::buffer::AppView;
+
+pub fn get_view_layer(view: &AppView) -> u8 {
+    match view {
+        AppView::Intro => 1,
+        AppView::Login | AppView::Register | AppView::Admin => 2,
+        AppView::Form(_) | AppView::Scratch => 3,
+    }
+}
+
+/// Switches the active buffer index.
+pub fn switch_buffer(buffer_state: &mut BufferState, next: bool) -> bool {
+    if buffer_state.history.len() <= 1 {
+        return false;
+    }
+
+    let len = buffer_state.history.len();
+    let current_index = buffer_state.active_index;
+    let new_index = if next {
+        (current_index + 1) % len
+    } else {
+        (current_index + len - 1) % len
+    };
+
+    if new_index != current_index {
+        buffer_state.active_index = new_index;
+        true
+    } else {
+        false
+    }
+}
+

client/src/modes/general/dialog.rs

@@ -4,6 +4,7 @@ use crossterm::event::{Event, KeyCode};
 use crate::config::binds::config::Config;
 use crate::ui::handlers::context::DialogPurpose;
 use crate::state::app::state::AppState;
+use crate::state::app::buffer::BufferState;
 use crate::state::pages::auth::AuthState;
 use crate::state::pages::auth::LoginState;
 use crate::state::pages::auth::RegisterState;
@@ -20,6 +21,7 @@ pub async fn handle_dialog_event(
     auth_state: &mut AuthState,
     login_state: &mut LoginState,
     register_state: &mut RegisterState,
+    buffer_state: &mut BufferState,
 ) -> Option<Result<EventOutcome, Box<dyn std::error::Error>>> {
     if let Event::Key(key) = event {
         // Always allow Esc to dismiss
@@ -62,7 +64,7 @@ pub async fn handle_dialog_event(
                             match selected_index {
                                 0 => { // "Menu" button selected
                                     app_state.hide_dialog();
-                                    let message = login::back_to_main(login_state, app_state).await;
+                                    let message = login::back_to_main(login_state, app_state, buffer_state).await;
                                     return Some(Ok(EventOutcome::Ok(message)));
                                 }
                                 1 => {
@@ -91,8 +93,7 @@ pub async fn handle_dialog_event(
                             match selected_index {
                                 0 => { // "OK" button for RegisterSuccess
                                     app_state.hide_dialog();
-                                    // Go back to intro after successful registration dialog
-                                    let message = register::back_to_main(register_state, app_state).await;
+                                    let message = register::back_to_login(register_state, app_state, buffer_state).await;
                                     return Some(Ok(EventOutcome::Ok(message)));
                                 }
                                 _ => { // Default for RegisterSuccess

client/src/modes/handlers/event.rs

@@ -1,32 +1,43 @@
 // src/modes/handlers/event.rs
 use crossterm::event::Event;
 use crossterm::cursor::SetCursorStyle;
-use crate::tui::terminal::core::TerminalCore;
 use crate::services::grpc_client::GrpcClient;
 use crate::services::auth::AuthClient;
-use crate::modes::common::commands::CommandHandler;
 use crate::config::binds::config::Config;
-use crate::state::pages::form::FormState;
-use crate::state::pages::auth::AuthState;
-use crate::state::pages::auth::LoginState;
-use crate::state::pages::auth::RegisterState;
-use crate::state::pages::intro::IntroState;
-use crate::state::pages::admin::AdminState;
-use crate::state::app::state::AppState;
-use crate::state::pages::canvas_state::CanvasState;
 use crate::ui::handlers::rat_state::UiStateHandler;
 use crate::ui::handlers::context::UiContext;
-use crate::tui::functions::{intro, admin};
-use crate::tui::functions::common::{login, register};
+use crate::functions::common::buffer;
+use crate::tui::{
+    terminal::core::TerminalCore,
+    functions::{
+        common::{
+            form::SaveOutcome,
+            login,
+            register,
+        },
+    },
+    {intro, admin},
+};
+use crate::state::{
+    app::{
+        state::AppState,
+        buffer::{AppView, BufferState},
+    },
+    pages::{
+        auth::{AuthState, LoginState, RegisterState},
+        admin::AdminState,
+        canvas_state::CanvasState,
+        form::FormState,
+        intro::IntroState,
+    },
+};
 use crate::modes::{
-    common::command_mode,
+    common::{command_mode, commands::CommandHandler},
+    handlers::mode_manager::{ModeManager, AppMode},
     canvas::{edit, read_only, common_mode},
     general::{navigation, dialog},
 };
 use crate::config::binds::key_sequences::KeySequenceTracker;
-use crate::modes::handlers::mode_manager::{ModeManager, AppMode};
-use crate::state::app::state::AppView;
-use crate::tui::functions::common::form::SaveOutcome;
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum EventOutcome {
@@ -74,6 +85,7 @@ impl EventHandler {
         register_state: &mut RegisterState,
         intro_state: &mut IntroState,
         admin_state: &mut AdminState,
+        buffer_state: &mut BufferState,
         app_state: &mut AppState,
         total_count: u64,
         current_position: &mut u64,
@@ -94,12 +106,12 @@ impl EventHandler {
             }
             else { AppView::Scratch }
         };
-        app_state.ui.update_buffer_history(current_view);
+        buffer_state.update_history(current_view);
 
         // --- DIALOG MODALITY ---
         if app_state.ui.dialog.dialog_show {
             if let Some(dialog_result) = dialog::handle_dialog_event(
-                &event, config, app_state, auth_state, login_state, register_state
+                &event, config, app_state, auth_state, login_state, register_state, buffer_state
             ).await {
                 return dialog_result;
             }
@@ -123,6 +135,26 @@ impl EventHandler {
                 );
                 return Ok(EventOutcome::Ok(message));
             }
+            // --- Buffer Switching (Check Global) ---
+            if !matches!(current_mode, AppMode::Edit | AppMode::Command) {
+                if let Some(action) = config.get_action_for_key_in_mode(
+                    &config.keybindings.global, key_code, modifiers // Check global bindings
+                ) {
+                    match action {
+                        "next_buffer" => {
+                            if buffer::switch_buffer(buffer_state, true) {
+                                return Ok(EventOutcome::Ok("Switched to next buffer".to_string()));
+                            }
+                        }
+                        "previous_buffer" => {
+                            if buffer::switch_buffer(buffer_state, false) {
+                                return Ok(EventOutcome::Ok("Switched to previous buffer".to_string()));
+                            }
+                        }
+                        _ => {} // Other global actions could be handled here if needed
+                    }
+                }
+            }
             // --- End Global UI Toggles ---
 
             match current_mode {
@@ -145,7 +177,7 @@ impl EventHandler {
                             let mut message = String::from("Selected"); // Default message
                             match context {
                                 UiContext::Intro => {
-                                    intro::handle_intro_selection(app_state, index);
+                                    intro::handle_intro_selection(app_state, buffer_state, index);
                                     if app_state.ui.show_admin {
                                         let profile_names = app_state.profile_tree.profiles.iter()
                                             .map(|p| p.name.clone())
@@ -157,14 +189,14 @@ impl EventHandler {
                                 UiContext::Login => {
                                     message = match index {
                                         0 => login::save(auth_state, login_state, &mut self.auth_client, app_state).await?,
-                                        1 => login::back_to_main(login_state, app_state).await,
+                                        1 => login::back_to_main(login_state, app_state, buffer_state).await,
                                         _ => "Invalid Login Option".to_string(),
                                     };
                                 }
                                 UiContext::Register => {
                                     message = match index {
                                         0 => register::save(register_state, &mut self.auth_client, app_state).await?,
-                                        1 => register::back_to_main(register_state, app_state).await,
+                                        1 => register::back_to_login(register_state, app_state, buffer_state).await,
                                         _ => "Invalid Login Option".to_string(),
                                     };
                                 }

client/src/state/app.rs

@@ -1,3 +1,4 @@
 // src/state/app.rs
 
 pub mod state;
+pub mod buffer;

client/src/state/app/buffer.rs

@@ -0,0 +1,92 @@
+// src/state/app/buffer.rs
+
+/// Represents the distinct views or "buffers" the user can navigate.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum AppView {
+    Intro,
+    Login,
+    Register,
+    Admin,
+    Form(String),
+    Scratch,
+}
+
+impl AppView {
+    /// Returns the display name for the view.
+    pub fn display_name(&self) -> &str {
+        match self {
+            AppView::Intro => "Intro",
+            AppView::Login => "Login",
+            AppView::Register => "Register",
+            AppView::Admin => "Admin Panel",
+            AppView::Form(name) => name.as_str(),
+            AppView::Scratch => "*scratch*",
+        }
+    }
+}
+
+/// Holds the state related to buffer management (navigation history).
+#[derive(Debug, Clone)]
+pub struct BufferState {
+    pub history: Vec<AppView>,
+    pub active_index: usize,
+}
+
+impl Default for BufferState {
+    fn default() -> Self {
+        Self {
+            history: vec![AppView::Intro], // Start with Intro view
+            active_index: 0,
+        }
+    }
+}
+
+impl BufferState {
+    /// Updates the buffer history and active index.
+    /// If the view already exists, it sets it as active.
+    /// Otherwise, it adds the new view and makes it active.
+    pub fn update_history(&mut self, view: AppView) {
+        let existing_pos = self.history.iter().position(|v| v == &view);
+
+        match existing_pos {
+            Some(pos) => {
+                self.active_index = pos;
+            }
+            None => {
+                self.history.push(view.clone());
+                self.active_index = self.history.len() - 1;
+            }
+        }
+    }
+
+    /// Gets the currently active view.
+    pub fn get_active_view(&self) -> Option<&AppView> {
+        self.history.get(self.active_index)
+    }
+
+    /// Removes the currently active buffer from the history, unless it's the Intro buffer.
+    /// Sets the new active buffer to the one preceding the closed one.
+    /// # Returns
+    /// * `true` if a non-Intro buffer was closed.
+    /// * `false` if the active buffer was Intro or only Intro remained.
+    pub fn close_active_buffer(&mut self) -> bool {
+        let current_index = self.active_index;
+
+        // Rule 1: Cannot close Intro buffer.
+        if matches!(self.history.get(current_index), Some(AppView::Intro)) {
+            return false;
+        }
+
+        // Rule 2: Cannot close if only Intro would remain (or already remains).
+        // This check implicitly covers the case where len <= 1.
+        if self.history.len() <= 1 {
+             return false;
+        }
+
+        self.history.remove(current_index);
+        self.active_index = current_index.saturating_sub(1).min(self.history.len() - 1);
+
+        true
+    }
+}
+

client/src/state/app/state.rs

@@ -5,31 +5,6 @@ use common::proto::multieko2::table_definition::ProfileTreeResponse;
 use crate::modes::handlers::mode_manager::AppMode;
 use crate::ui::handlers::context::DialogPurpose;
 
-/// Represents the distinct views or "buffers" the user can navigate.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum AppView {
-    Intro,
-    Login,
-    Register,
-    Admin,
-    Form(String),
-    Scratch,
-}
-
-impl AppView {
-    /// Returns the display name for the view.
-    pub fn display_name(&self) -> &str {
-        match self {
-            AppView::Intro => "Intro",
-            AppView::Login => "Login",
-            AppView::Register => "Register",
-            AppView::Admin => "Admin Panel",
-            AppView::Form(name) => name.as_str(),
-            AppView::Scratch => "*scratch*",
-        }
-    }
-}
-
 pub struct DialogState {
     pub dialog_show: bool,
     pub dialog_title: String,
@@ -48,8 +23,6 @@ pub struct UiState {
     pub show_login: bool,
     pub show_register: bool,
     pub focus_outside_canvas: bool,
-    pub buffer_history: Vec<AppView>,
-    pub active_buffer_index: usize,
     pub dialog: DialogState,
 }
 
@@ -158,16 +131,14 @@ impl AppState {
 impl Default for UiState {
     fn default() -> Self {
         Self {
-            show_sidebar: true,
+            show_sidebar: false,
             show_intro: true,
             show_admin: false,
             show_form: false,
             show_login: false,
             show_register: false,
-            show_buffer_list: false,
+            show_buffer_list: true,
             focus_outside_canvas: false,
-            buffer_history: vec![AppView::Intro],
-            active_buffer_index: 0,
             dialog: DialogState::default(),
         }
     }
@@ -186,20 +157,3 @@ impl Default for DialogState {
         }
     }
 }
-
-impl UiState {
-    /// Updates the buffer history and active index.
-    pub fn update_buffer_history(&mut self, view: AppView) {
-        let existing_pos = self.buffer_history.iter().position(|v| v == &view);
-
-        match existing_pos {
-            Some(pos) => {
-                self.active_buffer_index = pos;
-            }
-            None => {
-                self.buffer_history.push(view.clone());
-                self.active_buffer_index = self.buffer_history.len() - 1;
-            }
-        }
-    }
-}

client/src/tui/functions/common/login.rs

@@ -4,6 +4,7 @@ use crate::services::auth::AuthClient;
 use crate::state::pages::auth::AuthState;
 use crate::state::pages::auth::LoginState;
 use crate::state::app::state::AppState;
+use crate::state::app::buffer::{AppView, BufferState};
 use crate::state::pages::canvas_state::CanvasState;
 use crate::ui::handlers::context::DialogPurpose;
 
@@ -87,6 +88,7 @@ pub async fn revert(
 pub async fn back_to_main(
     login_state: &mut LoginState,
     app_state: &mut AppState,
+    buffer_state: &mut BufferState,
 ) -> String {
     // Clear the input fields
     login_state.username.clear();
@@ -97,9 +99,9 @@ pub async fn back_to_main(
     // Ensure dialog is hidden if revert is called
     app_state.hide_dialog(); // Uncomment if needed
 
-    // Navigation logic (currently disabled in original code)
-    app_state.ui.show_login = false;
-    app_state.ui.show_intro = true;
+    // Navigation logic
+    buffer_state.close_active_buffer();
+    buffer_state.update_history(AppView::Intro);
 
     // Reset focus state
     app_state.ui.focus_outside_canvas = false;

client/src/tui/functions/common/register.rs

@@ -1,14 +1,13 @@
 // src/tui/functions/common/register.rs
 
-use crate::{
-    services::auth::AuthClient,
-    state::{
-        pages::auth::RegisterState,
-        app::state::AppState,
-        pages::canvas_state::CanvasState,
-    },
-    ui::handlers::context::DialogPurpose,
+use crate::services::auth::AuthClient;
+use crate::state::{
+    pages::auth::RegisterState,
+    app::state::AppState,
+    pages::canvas_state::CanvasState,
 };
+use crate::ui::handlers::context::DialogPurpose;
+use crate::state::app::buffer::{AppView, BufferState};
 
 /// Attempts to register the user using the provided details via gRPC.
 /// Updates RegisterState and AppState on success or failure.
@@ -131,9 +130,10 @@ pub async fn revert(
 }
 
 /// Clears the form and returns to the intro screen.
-pub async fn back_to_main(
+pub async fn back_to_login(
     register_state: &mut RegisterState,
     app_state: &mut AppState,
+    buffer_state: &mut BufferState,
 ) -> String {
     // Clear fields first
     let _ = revert(register_state, app_state).await;
@@ -142,8 +142,8 @@ pub async fn back_to_main(
     app_state.hide_dialog();
 
     // Navigation logic
-    app_state.ui.show_register = false;
-    app_state.ui.show_intro = true;
+    buffer_state.close_active_buffer();
+    buffer_state.update_history(AppView::Login);
 
     // Reset focus state
     app_state.ui.focus_outside_canvas = false;

client/src/tui/functions/intro.rs

@@ -1,31 +1,33 @@
 // src/tui/functions/intro.rs
 use crate::state::app::state::AppState;
+use crate::state::app::buffer::{AppView, BufferState};
 
-pub fn handle_intro_selection(app_state: &mut AppState, index: usize) {
-    match index { // Use index directly
-        0 => { // Continue
-            app_state.ui.show_form = true;
-            app_state.ui.show_admin = false;
-            app_state.ui.show_login = false;
+/// Handles intro screen selection by updating view history and managing focus state.
+/// 0: Continue (restores last form or default)
+/// 1: Admin view
+/// 2: Login view
+/// 3: Register view (with focus reset)
+pub fn handle_intro_selection(
+    app_state: &mut AppState,
+    buffer_state: &mut BufferState,
+    index: usize,
+) {
+    let target_view = match index {
+        0 => {
+            let form_name = app_state.selected_profile.clone().unwrap_or_else(|| "Data Form".to_string());
+            AppView::Form(form_name)
         }
-        1 => { // Admin
-            app_state.ui.show_form = false;
-            app_state.ui.show_admin = true;
-            app_state.ui.show_login = false;
-        }
-        2 => { // Login
-            app_state.ui.show_form = false;
-            app_state.ui.show_admin = false;
-            app_state.ui.show_login = true;
-        }
-        3 => { // Register
-            app_state.ui.show_intro = false;
-            app_state.ui.show_register = true;
-            app_state.ui.focus_outside_canvas = false;
-            app_state.focused_button_index = 0;
-        }
-        _ => {}
+        1 => AppView::Admin,
+        2 => AppView::Login,
+        3 => AppView::Register,
+        _ => return,
+    };
+
+    buffer_state.update_history(target_view);
+    
+    // Register view requires focus reset
+    if index == 3 {
+        app_state.ui.focus_outside_canvas = false;
+        app_state.focused_button_index = 0;
     }
-    app_state.ui.show_intro = false;
 }
-

client/src/ui/handlers/render.rs

@@ -18,6 +18,7 @@ use crate::state::pages::auth::AuthState;
 use crate::state::pages::auth::LoginState;
 use crate::state::pages::auth::RegisterState;
 use crate::state::pages::intro::IntroState;
+use crate::state::app::buffer::BufferState;
 use crate::state::app::state::AppState;
 use crate::state::pages::admin::AdminState;
 
@@ -29,6 +30,7 @@ pub fn render_ui(
     register_state: &RegisterState,
     intro_state: &IntroState,
     admin_state: &mut AdminState,
+    buffer_state: &BufferState,
     theme: &Theme,
     is_edit_mode: bool,
     total_count: u64,
@@ -37,6 +39,7 @@ pub fn render_ui(
     command_input: &str,
     command_mode: bool,
     command_message: &str,
+    current_fps: f64,
     app_state: &AppState,
 ) {
     render_background(f, f.area(), theme);
@@ -170,9 +173,9 @@ pub fn render_ui(
     // Render buffer list if enabled and area is available
     if let Some(area) = buffer_list_area {
         if app_state.ui.show_buffer_list {
-            render_buffer_list(f, area, theme, app_state);
+            render_buffer_list(f, area, theme, buffer_state);
         }
     }
-    render_status_line(f, status_line_area, current_dir, theme, is_edit_mode);
+    render_status_line(f, status_line_area, current_dir, theme, is_edit_mode, current_fps);
     render_command_line(f, command_line_area, command_input, command_mode, theme, command_message);
 }

client/src/ui/handlers/ui.rs

@@ -2,11 +2,11 @@
 
 use crate::config::binds::config::Config;
 use crate::config::colors::themes::Theme;
-use crate::modes::common::commands::CommandHandler;
-use crate::modes::handlers::event::{EventHandler, EventOutcome}; // Import EventOutcome
-use crate::modes::handlers::mode_manager::{AppMode, ModeManager};
 use crate::services::grpc_client::GrpcClient;
 use crate::services::ui_service::UiService;
+use crate::modes::common::commands::CommandHandler;
+use crate::modes::handlers::event::{EventHandler, EventOutcome};
+use crate::modes::handlers::mode_manager::{AppMode, ModeManager};
 use crate::state::pages::canvas_state::CanvasState;
 use crate::state::pages::form::FormState;
 use crate::state::pages::auth::AuthState;
@@ -14,10 +14,13 @@ use crate::state::pages::auth::LoginState;
 use crate::state::pages::auth::RegisterState;
 use crate::state::pages::admin::AdminState;
 use crate::state::pages::intro::IntroState;
+use crate::state::app::buffer::BufferState;
+use crate::state::app::buffer::AppView;
 use crate::state::app::state::AppState;
  // Import SaveOutcome
 use crate::tui::terminal::{EventReader, TerminalCore};
 use crate::ui::handlers::render::render_ui;
+use std::time::Instant;
 use crossterm::cursor::SetCursorStyle;
 
 pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
@@ -35,6 +38,7 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
     let mut register_state = RegisterState::default();
     let mut intro_state = IntroState::default();
     let mut admin_state = AdminState::default();
+    let mut buffer_state = BufferState::default();
     let mut app_state = AppState::new()?;
 
     // Initialize app state with profile tree and table structure
@@ -48,10 +52,33 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
         .await?;
     form_state.reset_to_empty();
 
+    // --- FPS Calculation State ---
+    let mut last_frame_time = Instant::now();
+    let mut current_fps = 0.0;
+
     loop {
         // Determine edit mode based on EventHandler state
         let is_edit_mode = event_handler.is_edit_mode;
 
+        // --- Synchronize UI View from Active Buffer ---
+        if let Some(active_view) = buffer_state.get_active_view() {
+            // Reset all flags first
+            app_state.ui.show_intro = false;
+            app_state.ui.show_login = false;
+            app_state.ui.show_register = false;
+            app_state.ui.show_admin = false;
+            app_state.ui.show_form = false;
+            match active_view {
+                AppView::Intro => app_state.ui.show_intro = true,
+                AppView::Login => app_state.ui.show_login = true,
+                AppView::Register => app_state.ui.show_register = true,
+                AppView::Admin => app_state.ui.show_admin = true,
+                AppView::Form(_) => app_state.ui.show_form = true,
+                AppView::Scratch => {} // Or show a scratchpad component
+            }
+        }
+        // --- End Synchronization ---
+
         terminal.draw(|f| {
             render_ui(
                 f,
@@ -61,6 +88,7 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
                 &register_state,
                 &intro_state,
                 &mut admin_state,
+                &buffer_state,
                 &theme,
                 is_edit_mode,
                 app_state.total_count,
@@ -69,6 +97,7 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
                 &event_handler.command_input,
                 event_handler.command_mode,
                 &event_handler.command_message,
+                current_fps,
                 &app_state,
             );
         })?;
@@ -122,6 +151,7 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
                 &mut register_state,
                 &mut intro_state,
                 &mut admin_state,
+                &mut buffer_state,
                 &mut app_state,
                 total_count,
                 &mut current_position,
@@ -278,6 +308,14 @@ pub async fn run_ui() -> Result<(), Box<dyn std::error::Error>> {
             // terminal.cleanup()?; // Optional: Drop handles this
             return Ok(());
         }
+
+        // --- FPS Calculation ---
+        let now = Instant::now();
+        let frame_duration = now.duration_since(last_frame_time);
+        last_frame_time = now;
+        if frame_duration.as_secs_f64() > 1e-6 {
+            current_fps = 1.0 / frame_duration.as_secs_f64();
+        }
     }
 }