resolve deadlock issue, draft migration features

src/app.rs

@@ -11,7 +11,7 @@ use gtk::{
     prelude::{ActionExt, ApplicationExt, ApplicationExtManual, GtkApplicationExt, GtkWindowExt},
     Application,
 };
-use sqlite::Connection;
+use sqlite::{Connection, Transaction};
 
 use std::{
     path::PathBuf,
@@ -21,12 +21,12 @@ use std::{
 const APPLICATION_ID: &str = "io.github.yggverse.Yoda";
 
 pub struct App {
+    profile_database_connection: Arc<RwLock<Connection>>,
+    // database: Arc<Database>,
     // Actions
     // action_update: Arc<SimpleAction>,
     // Components
     // browser: Arc<Browser>,
-    // Extras
-    // database: Arc<Database>,
     // GTK
     gobject: Application,
 }
@@ -38,28 +38,7 @@ impl App {
         profile_path: PathBuf,
     ) -> Self {
         // Init database
-        let database = {
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            }
-        };
+        let database = Arc::new(Database::new());
 
         // Init actions
         let action_tool_debug = Action::new("win", true);
@@ -106,7 +85,6 @@ impl App {
 
         // Init components
         let browser = Arc::new(Browser::new(
-            profile_database_connection.clone(),
             profile_path,
             action_tool_debug.simple(),
             action_tool_profile_directory.simple(),
@@ -170,6 +148,7 @@ impl App {
             // let browser = browser.clone();
             let profile_database_connection = profile_database_connection.clone();
             let database = database.clone();
+            let browser = browser.clone();
             move |_| {
                 // Init writable connection
                 match profile_database_connection.write() {
@@ -220,12 +199,12 @@ impl App {
 
         // Return activated App struct
         Self {
+            // database,
+            profile_database_connection,
             // Actions (SimpleAction)
             // action_update: action_update.simple(),
             // Components
             // browser,
-            // Extras
-            // database,
             // GTK
             gobject,
         }
@@ -233,6 +212,50 @@ impl App {
 
     // Actions
     pub fn run(&self) -> ExitCode {
+        // Begin database migration @TODO
+        {
+            // Init writable connection
+            let mut connection = match self.profile_database_connection.try_write() {
+                Ok(connection) => connection,
+                Err(e) => todo!("{e}"),
+            };
+
+            // Init new transaction
+            let transaction = match connection.transaction() {
+                Ok(transaction) => transaction,
+                Err(e) => todo!("{e}"),
+            };
+
+            // Begin migration
+            match App::migrate(&transaction) {
+                Ok(_) => {
+                    // Confirm changes
+                    match transaction.commit() {
+                        Ok(_) => {} // @TODO
+                        Err(e) => todo!("{e}"),
+                    }
+                }
+                Err(e) => todo!("{e}"),
+            }
+        } // unlock database
+
+        // Start application
         self.gobject.run()
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        if let Err(e) = Browser::migrate(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser.rs

@@ -13,11 +13,8 @@ use gtk::{
     prelude::{ActionMapExt, GtkWindowExt},
     ApplicationWindow,
 };
-use sqlite::{Connection, Transaction};
-use std::{
-    path::PathBuf,
-    sync::{Arc, RwLock},
-};
+use sqlite::Transaction;
+use std::{path::PathBuf, sync::Arc};
 
 pub struct Browser {
     // Extras
@@ -32,7 +29,6 @@ impl Browser {
     // Construct
     pub fn new(
         // Extras
-        profile_database_connection: Arc<RwLock<Connection>>,
         profile_path: PathBuf,
         // Actions
         action_tool_debug: Arc<SimpleAction>,
@@ -49,28 +45,7 @@ impl Browser {
         action_tab_pin: Arc<SimpleAction>,
     ) -> Browser {
         // Init database
-        let database = {
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            }
-        };
+        let database = Arc::new(Database::new());
 
         // Init components
         let header = Arc::new(Header::new(
@@ -88,7 +63,6 @@ impl Browser {
         ));
 
         let window = Arc::new(Window::new(
-            profile_database_connection.clone(),
             action_tab_page_navigation_base.clone(),
             action_tab_page_navigation_history_back.clone(),
             action_tab_page_navigation_history_forward.clone(),
@@ -97,11 +71,7 @@ impl Browser {
         ));
 
         // Init widget
-        let widget = Arc::new(Widget::new(
-            profile_database_connection.clone(),
-            header.gobject(),
-            window.gobject(),
-        ));
+        let widget = Arc::new(Widget::new(header.gobject(), window.gobject()));
 
         // Assign actions
         widget.gobject().add_action(action_tool_debug.as_ref());
@@ -281,4 +251,29 @@ impl Browser {
     pub fn gobject(&self) -> &ApplicationWindow {
         &self.widget.gobject()
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        /* @TODO
+        if let Err(e) = Header::migrate(&tx) {
+            return Err(e.to_string());
+        } */
+
+        if let Err(e) = Window::migrate(&tx) {
+            return Err(e.to_string());
+        }
+
+        if let Err(e) = Widget::migrate(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/database.rs

@@ -10,7 +10,11 @@ pub struct Database {
 }
 
 impl Database {
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app_browser`
             (
@@ -18,9 +22,7 @@ impl Database {
                 `app_id` INTEGER NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(&self, tx: &Transaction, app_id: &i64) -> Result<usize, Error> {

src/app/browser/widget.rs

@@ -3,8 +3,8 @@ mod database;
 use database::Database;
 
 use gtk::{prelude::GtkWindowExt, ApplicationWindow, Box, HeaderBar};
-use sqlite::{Connection, Transaction};
-use std::sync::{Arc, RwLock};
+use sqlite::Transaction;
+use std::sync::Arc;
 
 // Default options
 const DEFAULT_HEIGHT: i32 = 480;
@@ -18,34 +18,9 @@ pub struct Widget {
 
 impl Widget {
     // Construct
-    pub fn new(
-        profile_database_connection: Arc<RwLock<Connection>>,
-        titlebar: &HeaderBar,
-        child: &Box,
-    ) -> Self {
+    pub fn new(titlebar: &HeaderBar, child: &Box) -> Self {
         // Init database
-        let database = {
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            }
-        };
+        let database = Arc::new(Database::new());
 
         // Init GTK
         let gobject = ApplicationWindow::builder()
@@ -116,4 +91,18 @@ impl Widget {
     pub fn gobject(&self) -> &ApplicationWindow {
         &self.gobject
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        // nothing yet..
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/widget/database.rs

@@ -13,7 +13,11 @@ pub struct Database {
 }
 
 impl Database {
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app_browser_widget`
             (
@@ -24,9 +28,7 @@ impl Database {
                 `is_maximized`   INTEGER NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(

src/app/browser/window.rs

@@ -3,11 +3,11 @@ mod tab;
 mod widget;
 
 use database::Database;
-use sqlite::{Connection, Transaction};
+use sqlite::Transaction;
 use tab::Tab;
 use widget::Widget;
 
-use std::sync::{Arc, RwLock};
+use std::sync::Arc;
 
 use gtk::{gio::SimpleAction, glib::GString, Box};
 
@@ -20,8 +20,6 @@ pub struct Window {
 impl Window {
     // Construct
     pub fn new(
-        // Extras
-        profile_database_connection: Arc<RwLock<Connection>>,
         // Actions
         action_tab_page_navigation_base: Arc<SimpleAction>,
         action_tab_page_navigation_history_back: Arc<SimpleAction>,
@@ -30,32 +28,10 @@ impl Window {
         action_update: Arc<SimpleAction>,
     ) -> Self {
         // Init database
-        let database = {
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            }
-        };
+        let database = Arc::new(Database::new());
 
         // Init components
         let tab = Arc::new(Tab::new(
-            profile_database_connection,
             action_tab_page_navigation_base,
             action_tab_page_navigation_history_back,
             action_tab_page_navigation_history_forward,
@@ -163,4 +139,20 @@ impl Window {
     pub fn gobject(&self) -> &Box {
         &self.widget.gobject()
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        if let Err(e) = Tab::migrate(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/window/database.rs

@@ -10,7 +10,11 @@ pub struct Database {
 }
 
 impl Database {
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app_browser_window`
             (
@@ -18,9 +22,7 @@ impl Database {
                 `app_browser_id` INTEGER NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(&self, tx: &Transaction, app_browser_id: &i64) -> Result<usize, Error> {

src/app/browser/window/tab.rs

@@ -6,7 +6,7 @@ mod widget;
 use database::Database;
 use label::Label;
 use page::Page;
-use sqlite::{Connection, Transaction};
+use sqlite::Transaction;
 use widget::Widget;
 
 use gtk::{
@@ -16,11 +16,7 @@ use gtk::{
     GestureClick, Notebook,
 };
 
-use std::{
-    cell::RefCell,
-    collections::HashMap,
-    sync::{Arc, RwLock},
-};
+use std::{cell::RefCell, collections::HashMap, sync::Arc};
 
 // Common struct for HashMap index
 pub struct TabItem {
@@ -30,7 +26,6 @@ pub struct TabItem {
 
 // Main
 pub struct Tab {
-    profile_database_connection: Arc<RwLock<Connection>>,
     database: Arc<Database>,
     // Actions
     action_tab_page_navigation_base: Arc<SimpleAction>,
@@ -47,7 +42,6 @@ pub struct Tab {
 impl Tab {
     // Construct
     pub fn new(
-        profile_database_connection: Arc<RwLock<Connection>>,
         // Actions
         action_tab_page_navigation_base: Arc<SimpleAction>,
         action_tab_page_navigation_history_back: Arc<SimpleAction>,
@@ -56,28 +50,7 @@ impl Tab {
         action_update: Arc<SimpleAction>,
     ) -> Self {
         // Init database
-        let database = {
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            }
-        };
+        let database = Arc::new(Database::new());
 
         // Init empty HashMap index as no tabs appended yet
         let index = RefCell::new(HashMap::new());
@@ -87,7 +60,6 @@ impl Tab {
 
         // Return non activated struct
         Self {
-            profile_database_connection,
             database,
             // Define action links
             action_tab_page_navigation_base,
@@ -135,11 +107,7 @@ impl Tab {
         let id = uuid_string_random();
 
         // Init new tab components
-        let label = Arc::new(Label::new(
-            self.profile_database_connection.clone(),
-            id.clone(),
-            false,
-        ));
+        let label = Arc::new(Label::new(id.clone(), false));
 
         let page = Arc::new(Page::new(
             id.clone(),
@@ -335,4 +303,25 @@ impl Tab {
     pub fn gobject(&self) -> &Notebook {
         self.widget.gobject()
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        if let Err(e) = Label::migrate(&tx) {
+            return Err(e.to_string());
+        }
+
+        /* @TODO
+        if let Err(e) = Page::migrate(&tx) {
+            return Err(e.to_string());
+        } */
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/window/tab/database.rs

@@ -11,7 +11,11 @@ pub struct Database {
 }
 
 impl Database {
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app_browser_window_tab`
             (
@@ -20,9 +24,7 @@ impl Database {
                 `is_current` INTEGER NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(

src/app/browser/window/tab/label.rs

@@ -5,12 +5,12 @@ mod widget;
 
 use database::Database;
 use pin::Pin;
-use sqlite::{Connection, Transaction};
+use sqlite::Transaction;
 use title::Title;
 use widget::Widget;
 
 use gtk::{glib::GString, Box};
-use std::sync::{Arc, RwLock};
+use std::sync::Arc;
 
 pub struct Label {
     database: Arc<Database>,
@@ -23,37 +23,9 @@ pub struct Label {
 
 impl Label {
     // Construct
-    pub fn new(
-        profile_database_connection: Arc<RwLock<Connection>>,
-        name: GString,
-        is_pinned: bool,
-    ) -> Label {
+    pub fn new(name: GString, is_pinned: bool) -> Label {
         // Init database
-        let database = {
-            /* @TODO init outside
-            // Init writable database connection
-            let mut connection = match profile_database_connection.write() {
-                Ok(connection) => connection,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init new transaction
-            let transaction = match connection.transaction() {
-                Ok(transaction) => transaction,
-                Err(e) => todo!("{e}"),
-            };
-
-            // Init database structure
-            match Database::init(&transaction) {
-                Ok(database) => match transaction.commit() {
-                    Ok(_) => Arc::new(database),
-                    Err(e) => todo!("{e}"),
-                },
-                Err(e) => todo!("{e}"),
-            } */
-
-            Arc::new(Database::new())
-        };
+        let database = Arc::new(Database::new());
 
         // Components
         let pin = Arc::new(Pin::new(is_pinned));
@@ -135,4 +107,18 @@ impl Label {
     pub fn gobject(&self) -> &Box {
         &self.widget.gobject()
     }
+
+    // Tools
+    pub fn migrate(tx: &Transaction) -> Result<(), String> {
+        // Migrate self components
+        if let Err(e) = Database::init(&tx) {
+            return Err(e.to_string());
+        }
+
+        // Delegate migration to childs
+        // nothing yet..
+
+        // Success
+        Ok(())
+    }
 }

src/app/browser/window/tab/label/database.rs

@@ -15,7 +15,7 @@ impl Database {
         Self {}
     }
 
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app_browser_window_tab_label`
             (
@@ -24,9 +24,7 @@ impl Database {
                 `is_pinned` INTEGER NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(

src/app/database.rs

@@ -9,16 +9,18 @@ pub struct Database {
 }
 
 impl Database {
-    pub fn init(tx: &Transaction) -> Result<Database, Error> {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    pub fn init(tx: &Transaction) -> Result<usize, Error> {
         tx.execute(
             "CREATE TABLE IF NOT EXISTS `app`
             (
                 `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL
             )",
             [],
-        )?;
-
-        Ok(Self {})
+        )
     }
 
     pub fn add(&self, tx: &Transaction) -> Result<usize, Error> {