Fix config loading

.vscode/launch.json

@@ -0,0 +1,28 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug selected unit test",
+            "cargo": {
+                "args": [
+                    "test",
+                    // "--no-run",
+                    "test::${selectedText}"
+                ],
+                // "filter": {
+                //     "name": "vk_layer_rs",
+                //     "kind": "lib"
+                // }
+            },
+            "cwd": "${workspaceFolder}",
+            "env": {
+                "RFACTOR_HUD_LOG": "1"
+            }
+        },
+    ]
+}

src/lib.rs

@@ -19,6 +19,7 @@ pub(crate) fn logging() -> bool {
 
 macro_rules! write_log {
     ($msg:expr) => {
+        println!("{}", $msg);
         if crate::logging() {
             crate::log($msg);
         }
@@ -31,18 +32,25 @@ fn get_config(home: &str) -> OverlayConfig {
     let config_path = Path::new(&home).join(".config/rFactorHUD/config.json");
 
     if config_path.exists() {
-        fs::read_to_string(&config_path)
-            .map(|s| {
-                serde_json::from_str(&s).unwrap_or({
-                    write_log!("failed to deserialize config file");
-                    OverlayConfig::new()
-                })
-            })
-            .unwrap_or({
-                write_log!(format!("failed to open config file: {:?}", config_path));
+        match fs::read_to_string(&config_path) {
+            Ok(s) => serde_json::from_str(&s).unwrap_or_else(|err| {
+                write_log!(format!(
+                    "failed to deserialize config file from {} \n({:?})",
+                    s, err
+                ));
                 OverlayConfig::new()
-            })
+            }),
+            Err(err) => {
+                write_log!(format!(
+                    "failed to open config file: {:?} due to {:?}",
+                    config_path, err
+                ));
+                OverlayConfig::new()
+            }
+        }
     } else {
+        write_log!("create parent dir structure");
+
         if let Err(err) = std::fs::create_dir_all(config_path.parent().unwrap()) {
             write_log!(format!("failed to create dirs for config file: {:?}", err));
         }
@@ -52,6 +60,8 @@ fn get_config(home: &str) -> OverlayConfig {
         match File::create(config_path) {
             Ok(mut file) => match serde_json::to_string_pretty(&config) {
                 Ok(conf_str) => {
+                    write_log!("create config file with default values");
+
                     if let Err(err) = file.write_all(conf_str.as_bytes()) {
                         write_log!(format!("failed to write to config file: {:?}", err));
                     }
@@ -69,6 +79,31 @@ fn get_config(home: &str) -> OverlayConfig {
     }
 }
 
+pub fn check_logging(home: &str) {
+    let log_enabled = match std::env::var("RFACTOR_HUD_LOG") {
+        Ok(var) => {
+            let i: u32 = var.parse().unwrap_or(0);
+
+            i == 1
+        }
+        Err(_) => false,
+    };
+
+    unsafe { LOG_ENABLED = log_enabled };
+
+    if logging() {
+        unsafe {
+            LOG_FILE = format!("{}/rf2_vk_hud.log", home);
+        }
+
+        if let Err(_) = File::create(unsafe { &LOG_FILE }) {}
+
+        write_log!(" ==================================================================");
+        write_log!(" ======================= New Negotiation ==========================");
+        write_log!(" ==================================================================");
+    }
+}
+
 pub fn log(msg: impl ToString) {
     assert!(logging());
 
@@ -83,11 +118,14 @@ pub fn log(msg: impl ToString) {
 
 #[cfg(test)]
 mod test {
-    use crate::get_config;
+    use crate::{check_logging, get_config};
 
     #[test]
     fn config() {
         let home = std::env::var("HOME").unwrap();
-        get_config(&home);
+        check_logging(&home);
+        let config = get_config(&home);
+
+        println!("{:#?}", config);
     }
 }

src/overlay/elements/leaderboard/mod.rs

@@ -22,7 +22,7 @@ use crate::write_log;
 
 use bg_generator::BackgroundGenerator;
 
-#[derive(Default, Deserialize, Serialize, Clone, Copy)]
+#[derive(Default, Deserialize, Serialize, Clone, Copy, Debug)]
 pub struct LeaderBoardConfig {
     first_board_color: [f32; 3],
     second_board_color: [f32; 3],

src/overlay/mod.rs

@@ -25,7 +25,7 @@ use serde::{Deserialize, Serialize};
 
 pub trait UiOverlay: DataReceiver {}
 
-#[derive(Deserialize, Serialize)]
+#[derive(Deserialize, Serialize, Debug)]
 pub struct UiSelectorConfig {
     pub enable_watermark: bool,
 
@@ -45,7 +45,7 @@ impl UiSelectorConfig {
     }
 }
 
-#[derive(Deserialize, Serialize)]
+#[derive(Deserialize, Serialize, Debug)]
 pub struct OverlayConfig {
     pub ui_config: UiSelectorConfig,
     pub radar_config: RadarConfig,

src/vk_layer/mod.rs

@@ -2,47 +2,27 @@ mod enums;
 mod structs;
 mod vk_handles;
 
+use crate::check_logging;
 use enums::*;
 use structs::*;
 use vk_handles::*;
 use vulkan_rs::prelude::*;
 
-use std::{ffi::c_void, fs::File, mem, os::raw::c_char, ptr};
+use std::{ffi::c_void, mem, os::raw::c_char, ptr};
 
 static mut ACQUIRE_NEXT_IMAGE: PFN_vkAcquireNextImageKHR =
     unsafe { mem::transmute(vkVoidFunction as *const c_void) };
 
-use crate::{get_config, logging, write_log, LOG_ENABLED, LOG_FILE, OVERLAY};
+use crate::{get_config, logging, write_log, OVERLAY};
 
 #[no_mangle]
 #[allow(non_snake_case)]
 pub(crate) extern "C" fn vkNegotiateLoaderLayerInterfaceVersion(
     pVersionStruct: *mut VkNegotiateLayerInterface,
 ) -> VkResult {
-    let log_enabled = match std::env::var("RFACTOR_HUD_LOG") {
-        Ok(var) => {
-            let i: u32 = var.parse().unwrap_or(0);
-
-            i == 1
-        }
-        Err(_) => false,
-    };
-
-    unsafe { LOG_ENABLED = log_enabled };
-
     let home = std::env::var("HOME").unwrap();
 
-    if logging() {
-        unsafe {
-            LOG_FILE = format!("{}/rf2_vk_hud.log", home);
-        }
-
-        if let Err(_) = File::create(unsafe { &LOG_FILE }) {}
-
-        write_log!(" ==================================================================");
-        write_log!(" ======================= New Negotiation ==========================");
-        write_log!(" ==================================================================");
-    }
+    check_logging(&home);
 
     unsafe {
         OVERLAY.set_config(get_config(&home));