slightly tweak features::game_networking design & add visual indicator for blocking failing due to game being closed

src/features/game_networking.rs

@@ -1,5 +1,11 @@
-use crate::util::consts::game::{EXE_ENHANCED, EXE_LEGACY};
-use std::path::Path;
+use crate::util::consts::{
+    colours,
+    game::{EXE_ENHANCED, EXE_LEGACY},
+};
+use std::{
+    path::Path,
+    time::{Duration, Instant},
+};
 use sysinfo::System;
 use windows::{
     Win32::{
@@ -13,28 +19,63 @@ use windows::{
             CoUninitialize,
         },
     },
-    core::{BSTR, HRESULT},
+    core::BSTR,
 };
 
 const FILTER_NAME_IN: &str = "[GTA Tools] Block all inbound traffic for GTA V";
 const FILTER_NAME_OUT: &str = "[GTA Tools] Block all outbound traffic for GTA V";
 
+const INTERVAL: Duration = Duration::from_secs(3);
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum BlockedStatus {
+    Blocked,
+    Failed,
+    Unblocked,
+}
+
+impl From<bool> for BlockedStatus {
+    fn from(value: bool) -> Self {
+        match value {
+            true => Self::Blocked,
+            false => Self::Unblocked,
+        }
+    }
+}
+
+impl From<BlockedStatus> for eframe::egui::Color32 {
+    fn from(value: BlockedStatus) -> Self {
+        match value {
+            BlockedStatus::Blocked => colours::RED,
+            BlockedStatus::Failed => colours::YELLOW,
+            BlockedStatus::Unblocked => colours::GREEN,
+        }
+    }
+}
+
+impl BlockedStatus {
+    pub fn to_color32(&self) -> eframe::egui::Color32 {
+        (*self).into()
+    }
+}
+
 #[derive(Debug)]
 pub struct GameNetworking {
-    pub is_blocked: bool,
     com_initialized: bool,
-    policy: INetFwPolicy2,
+    pub blocked_status: BlockedStatus,
+    timer: Instant,
+    counting: bool,
 }
 
 impl Default for GameNetworking {
     fn default() -> Self {
-        let result = unsafe { CoInitializeEx(None, COINIT_MULTITHREADED) };
         let mut gn = Self {
-            is_blocked: false,
-            com_initialized: result != HRESULT(0x80010106u32 as i32),
-            policy: unsafe { CoCreateInstance(&NetFwPolicy2, None, CLSCTX_INPROC_SERVER).unwrap() },
+            blocked_status: BlockedStatus::Unblocked,
+            com_initialized: unsafe { CoInitializeEx(None, COINIT_MULTITHREADED) }.is_ok(),
+            timer: Instant::now(),
+            counting: false,
         };
-        gn.is_blocked = gn.is_blocked();
+        gn.blocked_status = gn.is_blocked().into();
         gn
     }
 }
@@ -52,9 +93,12 @@ impl Drop for GameNetworking {
 impl GameNetworking {
     pub fn block_all(&mut self, sysinfo: &mut System) {
         let Some(exe_path) = get_game_exe_path(sysinfo) else {
+            self.blocked_status = BlockedStatus::Failed;
             return;
         };
-        let rules = unsafe { self.policy.Rules().unwrap() };
+        let policy: INetFwPolicy2 =
+            unsafe { CoCreateInstance(&NetFwPolicy2, None, CLSCTX_INPROC_SERVER).unwrap() };
+        let rules = unsafe { policy.Rules().unwrap() };
         let filter_name_in = BSTR::from(FILTER_NAME_IN);
         let filter_name_out = BSTR::from(FILTER_NAME_OUT);
         unsafe {
@@ -84,11 +128,13 @@ impl GameNetworking {
             outbound_rule.SetProtocol(NET_FW_IP_PROTOCOL_ANY.0).unwrap();
             rules.Add(&outbound_rule).unwrap();
         }
-        self.is_blocked = self.is_blocked();
+        self.blocked_status = self.is_blocked().into();
     }
 
     pub fn unblock_all(&mut self) {
-        let rules = unsafe { self.policy.Rules().unwrap() };
+        let policy: INetFwPolicy2 =
+            unsafe { CoCreateInstance(&NetFwPolicy2, None, CLSCTX_INPROC_SERVER).unwrap() };
+        let rules = unsafe { policy.Rules().unwrap() };
         unsafe {
             let result = rules.Remove(&BSTR::from(FILTER_NAME_IN));
             if let Err(ref why) = result {
@@ -103,15 +149,31 @@ impl GameNetworking {
                 }
             }
         }
-        self.is_blocked = self.is_blocked();
+        self.blocked_status = self.is_blocked().into();
     }
 
     fn is_blocked(&self) -> bool {
-        let rules = unsafe { self.policy.Rules().unwrap() };
+        let policy: INetFwPolicy2 =
+            unsafe { CoCreateInstance(&NetFwPolicy2, None, CLSCTX_INPROC_SERVER).unwrap() };
+        let rules = unsafe { policy.Rules().unwrap() };
         let in_rule_exists = unsafe { rules.Item(&BSTR::from(FILTER_NAME_IN)).is_ok() };
         let out_rule_exists = unsafe { rules.Item(&BSTR::from(FILTER_NAME_OUT)).is_ok() };
         in_rule_exists || out_rule_exists
     }
+
+    pub fn if_failed_return_to_unblocked(&mut self) {
+        if self.blocked_status == BlockedStatus::Failed && !self.counting {
+            self.counting = true;
+            self.timer = Instant::now();
+        }
+        if self.blocked_status == BlockedStatus::Failed
+            && self.counting
+            && self.timer.elapsed() >= INTERVAL
+        {
+            self.counting = false;
+            self.blocked_status = BlockedStatus::Unblocked;
+        };
+    }
 }
 
 fn get_game_exe_path(sysinfo: &mut System) -> Option<&Path> {

src/gui/app.rs

@@ -156,15 +156,12 @@ impl App {
                         {
                             self.game_networking.unblock_all();
                         }
-                        let tint = match self.game_networking.is_blocked {
-                            true => egui::Color32::from_hex("#f96554").unwrap(),
-                            false => egui::Color32::from_hex("#68f954").unwrap(),
-                        };
                         ui.add(
                             egui::Image::new(egui::include_image!("../../assets/circle.svg"))
                                 .max_size([4.0, 4.0].into())
-                                .tint(tint),
+                                .tint(self.game_networking.blocked_status.to_color32()),
                         );
+                        self.game_networking.if_failed_return_to_unblocked();
                     });
                 });
                 response.response.on_disabled_hover_text(

src/util/consts.rs

@@ -8,3 +8,10 @@ pub mod game {
     pub const EXE_LEGACY: &str = "GTA5.exe";
     pub const WINDOW_TITLE: &str = "Grand Theft Auto V";
 }
+
+pub mod colours {
+    use eframe::egui::Color32;
+    pub const RED: Color32 = Color32::from_rgb(249, 101, 84);
+    pub const YELLOW: Color32 = Color32::from_rgb(249, 236, 84);
+    pub const GREEN: Color32 = Color32::from_rgb(104, 249, 84);
+}