Refactor next_mode()

The return type better reflects the next state

deja_vu/src/action.rs

@@ -17,8 +17,8 @@ use serde::{Deserialize, Serialize};
 use strum::Display;
 
 use crate::{
-    app::Mode,
     components::popup::Type,
+    state::Mode,
     system::{
         disk::{Disk, PartitionTableType},
         drivers::Driver,

deja_vu/src/app.rs

@@ -26,7 +26,6 @@ use ratatui::{
     layout::{Constraint, Direction, Layout},
     prelude::Rect,
 };
-use serde::{Deserialize, Serialize};
 use tokio::sync::mpsc;
 use tracing::{debug, info};
 
@@ -36,11 +35,11 @@ use crate::{
         footer::Footer, fps::FpsCounter, left::Left, popup, right::Right, title::Title, Component,
     },
     config::Config,
+    state::{CloneSettings, Mode},
     system::{
         boot,
-        disk::{Disk, PartitionTableType},
         diskpart::build_dest_format_script,
-        drivers::{self, Driver},
+        drivers::{self},
     },
     tasks::{Task, Tasks},
     tui::{Event, Tui},
@@ -58,35 +57,13 @@ pub struct App {
     should_suspend: bool,
     tick_rate: f64,
     // App
+    clone: CloneSettings,
     cur_mode: Mode,
-    disk_index_dest: Option<usize>,
-    disk_index_source: Option<usize>,
-    disk_list: Arc<Mutex<Vec<Disk>>>,
-    part_index_boot: Option<usize>,
-    part_index_os: Option<usize>,
-    driver: Option<Driver>,
     prev_mode: Mode,
     selections: Vec<Option<usize>>,
-    table_type: Option<PartitionTableType>,
     tasks: Tasks,
 }
 
-#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
-pub enum Mode {
-    #[default]
-    ScanDisks,
-    InstallDrivers,
-    SelectDisks,
-    SelectTableType,
-    Confirm,
-    PreClone,
-    Clone,
-    SelectParts,
-    PostClone,
-    Done,
-    Failed,
-}
-
 impl App {
     pub fn new(tick_rate: f64, frame_rate: f64) -> Result<Self> {
         let (action_tx, action_rx) = mpsc::unbounded_channel();
@@ -112,21 +89,15 @@ impl App {
             should_suspend: false,
             tick_rate,
             // App
+            clone: CloneSettings::new(disk_list_arc),
             cur_mode: Mode::ScanDisks,
-            disk_index_dest: None,
-            disk_index_source: None,
-            disk_list: disk_list_arc,
-            driver: None,
-            part_index_boot: None,
-            part_index_os: None,
             prev_mode: Mode::ScanDisks,
             selections: vec![None, None],
-            table_type: None,
             tasks,
         })
     }
 
-    pub fn next_mode(&mut self) -> Option<Mode> {
+    pub fn next_mode(&mut self) -> (Option<Mode>, Option<Mode>) {
         let new_mode = match (self.prev_mode, self.cur_mode) {
             (_, Mode::InstallDrivers) => Mode::ScanDisks,
             (_, Mode::ScanDisks) => Mode::SelectDisks,
@@ -148,19 +119,22 @@ impl App {
             (_, Mode::Confirm) => panic!("This shouldn't happen."),
         };
 
-        if new_mode == self.cur_mode {
-            None
-        } else {
+        let prev_mode = {
             match self.cur_mode {
-                // Update prev_mode if appropriate
-                Mode::Confirm => {}
+                Mode::Confirm => Some(self.prev_mode),
                 Mode::PreClone | Mode::Clone | Mode::PostClone | Mode::Done => {
                     // Override since we're past the point of no return
-                    self.prev_mode = self.cur_mode;
+                    Some(self.cur_mode)
                 }
-                _ => self.prev_mode = self.cur_mode,
+                _ => Some(self.cur_mode),
             }
-            Some(new_mode)
+        };
+
+        if new_mode == self.cur_mode {
+            // No mode change needed
+            (None, None)
+        } else {
+            (prev_mode, Some(new_mode))
         }
     }
 
@@ -181,10 +155,10 @@ impl App {
                 ))?;
 
                 // Build Diskpart script to format destination disk
-                let disk_list = self.disk_list.lock().unwrap();
-                if let Some(disk_index) = self.disk_index_dest {
+                let disk_list = self.clone.disk_list.lock().unwrap();
+                if let Some(disk_index) = self.clone.disk_index_dest {
                     if let Some(disk) = disk_list.get(disk_index) {
-                        let table_type = self.table_type.clone().unwrap();
+                        let table_type = self.clone.table_type.clone().unwrap();
                         let diskpart_script = build_dest_format_script(disk.id, &table_type);
                         self.tasks.add(Task::Diskpart(diskpart_script));
                     }
@@ -199,7 +173,7 @@ impl App {
                     self.config.clone_app_path.clone(),
                     Vec::new(),
                 ));
-                if let Some(dest_index) = self.disk_index_dest {
+                if let Some(dest_index) = self.clone.disk_index_dest {
                     self.tasks.add(Task::UpdateDestDisk(dest_index));
                 }
             }
@@ -224,12 +198,12 @@ impl App {
                 };
 
                 // Add actions
-                let disk_list = self.disk_list.lock().unwrap();
-                if let Some(disk_index) = self.disk_index_dest {
+                let disk_list = self.clone.disk_list.lock().unwrap();
+                if let Some(disk_index) = self.clone.disk_index_dest {
                     if let Some(disk) = disk_list.get(disk_index) {
-                        let table_type = self.table_type.clone().unwrap();
-                        let letter_boot = disk.get_part_letter(self.part_index_boot.unwrap());
-                        let letter_os = disk.get_part_letter(self.part_index_os.unwrap());
+                        let table_type = self.clone.table_type.clone().unwrap();
+                        let letter_boot = disk.get_part_letter(self.clone.part_index_boot.unwrap());
+                        let letter_os = disk.get_part_letter(self.clone.part_index_os.unwrap());
 
                         // Safety check
                         if letter_boot.is_empty() || letter_os.is_empty() {
@@ -247,8 +221,8 @@ impl App {
                         }
 
                         // Inject driver(s) (if selected)
-                        if let Some(driver) = &self.driver {
-                            if let Ok(task) = boot::inject_driver(&driver, &letter_os, &system32) {
+                        if let Some(driver) = &self.clone.driver {
+                            if let Ok(task) = boot::inject_driver(driver, &letter_os, &system32) {
                                 self.tasks.add(task);
                             } else {
                                 self.action_tx.send(Action::Error(format!(
@@ -379,12 +353,12 @@ impl App {
                     self.action_tx.send(Action::SetMode(Mode::InstallDrivers))?;
                 }
                 Action::SelectDriver(ref driver) => {
-                    self.driver = Some(driver.clone());
+                    self.clone.driver = Some(driver.clone());
                     drivers::load(&driver.inf_paths);
                     self.action_tx.send(Action::NextScreen)?;
                 }
                 Action::SelectTableType(ref table_type) => {
-                    self.table_type = Some(table_type.clone());
+                    self.clone.table_type = Some(table_type.clone());
                     self.action_tx.send(Action::NextScreen)?;
                 }
                 Action::Resize(w, h) => self.handle_resize(tui, w, h)?,
@@ -396,22 +370,26 @@ impl App {
                     };
                     self.action_tx.send(Action::SetMode(new_mode))?;
                 }
-                Action::NextScreen => {
-                    if let Some(mode) = self.next_mode() {
+                Action::NextScreen => match self.next_mode() {
+                    (None, None) => {}
+                    (Some(prev), Some(next)) => {
+                        self.prev_mode = prev;
+                        self.cur_mode = next;
                         self.action_tx.send(Action::DismissPopup)?;
-                        self.action_tx.send(Action::SetMode(mode))?;
+                        self.action_tx.send(Action::SetMode(next))?;
                     }
-                }
+                    _ => panic!("Failed to determine next mode"),
+                },
                 Action::ScanDisks => self.action_tx.send(Action::SetMode(Mode::ScanDisks))?,
                 Action::Select(one, two) => {
                     match self.cur_mode {
                         Mode::SelectDisks => {
-                            self.disk_index_source = one;
-                            self.disk_index_dest = two;
+                            self.clone.disk_index_source = one;
+                            self.clone.disk_index_dest = two;
                         }
                         Mode::SelectParts => {
-                            self.part_index_boot = one;
-                            self.part_index_os = two;
+                            self.clone.part_index_boot = one;
+                            self.clone.part_index_os = two;
                         }
                         _ => {}
                     }

deja_vu/src/components/footer.rs

@@ -21,7 +21,7 @@ use ratatui::{
 use tokio::sync::mpsc::UnboundedSender;
 
 use super::Component;
-use crate::{action::Action, app::Mode, config::Config};
+use crate::{action::Action, config::Config, state::Mode};
 
 #[derive(Default)]
 pub struct Footer {

deja_vu/src/components/left.rs

@@ -25,8 +25,8 @@ use tracing::info;
 use super::{popup, state::StatefulList, Component};
 use crate::{
     action::Action,
-    app::Mode,
     config::Config,
+    state::Mode,
     system::{
         disk::{Disk, Partition, PartitionTableType},
         drivers::{self, Driver},

deja_vu/src/components/popup.rs

@@ -23,7 +23,7 @@ use strum::Display;
 use tokio::sync::mpsc::UnboundedSender;
 
 use super::Component;
-use crate::{action::Action, app::Mode, config::Config};
+use crate::{action::Action, config::Config, state::Mode};
 
 #[derive(Default, Debug, Clone, PartialEq, Eq, Display, Serialize, Deserialize)]
 pub enum Type {

deja_vu/src/components/right.rs

@@ -25,8 +25,8 @@ use tracing::info;
 use super::{state::StatefulList, Component};
 use crate::{
     action::Action,
-    app::Mode,
     config::Config,
+    state::Mode,
     system::{
         cpu::get_cpu_name,
         disk::{Disk, Partition, PartitionTableType},

deja_vu/src/config.rs

@@ -26,7 +26,7 @@ use ratatui::style::{Color, Modifier, Style};
 use serde::{de::Deserializer, Deserialize};
 use tracing::error;
 
-use crate::{action::Action, app::Mode};
+use crate::{action::Action, state::Mode};
 
 const CONFIG: &str = include_str!("../config/config.json5");
 

deja_vu/src/main.rs

@@ -26,6 +26,7 @@ mod components;
 mod config;
 mod errors;
 mod logging;
+mod state;
 mod system;
 mod tasks;
 mod tests;

deja_vu/src/state.rs

@@ -0,0 +1,60 @@
+// This file is part of Deja-vu.
+//
+// Deja-vu is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Deja-vu is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Deja-vu. If not, see <https://www.gnu.org/licenses/>.
+//
+
+use std::sync::{Arc, Mutex};
+
+use serde::{Deserialize, Serialize};
+
+use crate::system::{
+    disk::{Disk, PartitionTableType},
+    drivers::Driver,
+};
+
+#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
+pub enum Mode {
+    #[default]
+    ScanDisks,
+    InstallDrivers,
+    SelectDisks,
+    SelectTableType,
+    Confirm,
+    PreClone,
+    Clone,
+    SelectParts,
+    PostClone,
+    Done,
+    Failed,
+}
+
+#[derive(Debug, Default)]
+pub struct CloneSettings {
+    pub disk_index_dest: Option<usize>,
+    pub disk_index_source: Option<usize>,
+    pub disk_list: Arc<Mutex<Vec<Disk>>>,
+    pub part_index_boot: Option<usize>,
+    pub part_index_os: Option<usize>,
+    pub driver: Option<Driver>,
+    pub table_type: Option<PartitionTableType>,
+}
+
+impl CloneSettings {
+    pub fn new(disk_list: Arc<Mutex<Vec<Disk>>>) -> Self {
+        CloneSettings {
+            disk_list,
+            ..Default::default()
+        }
+    }
+}