Reworked work with config file

- now missing fields will be automatically filled;
  excess fields - removed.
  thanks to new code structure I can easily create
  new fields or rename old ones
- improved `WineLang` enum; now launcher loads languages list dynamically
  from this enum so I can easily add support for new languages

assets/ui/preferences/enhancements.blp

@@ -22,21 +22,6 @@ Adw.PreferencesPage page {
         Adw.ComboRow wine_lang {
             title: "Language";
             subtitle: "Choose the language to use in wine environment. Can fix keyboard layout detection in-game";
-
-            model: Gtk.StringList {
-                strings [
-                    "System",
-                    "English",
-                    "German",
-                    "Russian",
-                    "Portuguese",
-                    "French",
-                    "Chinese",
-                    "Spanish",
-                    "Japanese",
-                    "Korean"
-                ]
-            };
         }
     }
 

src/lib/config/game/dxvk.rs

@@ -0,0 +1,48 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+use crate::lib::consts::launcher_dir;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Dxvk {
+    pub builds: String,
+    pub selected: Option<String>
+}
+
+impl Default for Dxvk {
+    fn default() -> Self {
+        let launcher_dir = launcher_dir().expect("Failed to get launcher dir");
+
+        Self {
+            builds: format!("{launcher_dir}/dxvks"),
+            selected: None
+        }
+    }
+}
+
+impl From<&JsonValue> for Dxvk {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            builds: match value.get("builds") {
+                Some(value) => value.as_str().unwrap_or(&default.builds).to_string(),
+                None => default.builds
+            },
+
+            selected: match value.get("selected") {
+                Some(value) => {
+                    if value.is_null() {
+                        None
+                    } else {
+                        match value.as_str() {
+                            Some(value) => Some(value.to_string()),
+                            None => default.selected
+                        }
+                    }
+                },
+                None => default.selected
+            }
+        }
+    }
+}

src/lib/config/game/enhancements/fsr.rs

@@ -0,0 +1,53 @@
+use std::collections::HashMap;
+
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub struct Fsr {
+    pub strength: u64,
+    pub enabled: bool
+}
+
+impl Default for Fsr {
+    fn default() -> Self {
+        Self {
+            strength: 2,
+            enabled: false
+        }
+    }
+}
+
+impl From<&JsonValue> for Fsr {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            strength: match value.get("strength") {
+                Some(value) => value.as_u64().unwrap_or(default.strength),
+                None => default.strength
+            },
+
+            enabled: match value.get("enabled") {
+                Some(value) => value.as_bool().unwrap_or(default.enabled),
+                None => default.enabled
+            }
+        }
+    }
+}
+
+impl Fsr {
+    /// Get environment variables corresponding to used amd fsr options
+    pub fn get_env_vars(&self) -> HashMap<&str, String> {
+        if self.enabled {
+            HashMap::from([
+                ("WINE_FULLSCREEN_FSR", String::from("1")),
+                ("WINE_FULLSCREEN_FSR_STRENGTH", self.strength.to_string())
+            ])
+        }
+        
+        else {
+            HashMap::new()
+        }
+    }
+}

src/lib/config/game/enhancements/gamescope/framerate.rs

@@ -0,0 +1,26 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
+pub struct Framerate {
+    pub focused: u64,
+    pub unfocused: u64
+}
+
+impl From<&JsonValue> for Framerate {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            focused: match value.get("focused") {
+                Some(value) => value.as_u64().unwrap_or(default.focused),
+                None => default.focused
+            },
+
+            unfocused: match value.get("unfocused") {
+                Some(value) => value.as_u64().unwrap_or(default.unfocused),
+                None => default.unfocused
+            }
+        }
+    }
+}

src/lib/config/game/enhancements/gamescope/mod.rs

@@ -0,0 +1,149 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+pub mod size;
+pub mod framerate;
+pub mod window_type;
+
+pub mod prelude {
+    pub use super::Gamescope;
+    pub use super::size::Size;
+    pub use super::framerate::Framerate;
+    pub use super::window_type::WindowType;
+}
+
+use prelude::*;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub struct Gamescope {
+    pub enabled: bool,
+    pub game: Size,
+    pub gamescope: Size,
+    pub framerate: Framerate,
+    pub integer_scaling: bool,
+    pub nvidia_image_scaling: bool,
+    pub window_type: WindowType
+}
+
+impl Gamescope {
+    pub fn get_command(&self, fsr_enabled: bool) -> Option<String> {
+        // https://github.com/bottlesdevs/Bottles/blob/b908311348ed1184ead23dd76f9d8af41ff24082/src/backend/wine/winecommand.py#L478
+        if self.enabled {
+            let mut gamescope = String::from("gamescope");
+
+            // Set window type
+            match self.window_type {
+                WindowType::Borderless => gamescope += " -b",
+                WindowType::Fullscreen => gamescope += " -f"
+            }
+
+            // Set game width
+            if self.game.width > 0 {
+                gamescope += &format!(" -w {}", self.game.width);
+            }
+
+            // Set game height
+            if self.game.height > 0 {
+                gamescope += &format!(" -h {}", self.game.height);
+            }
+
+            // Set gamescope width
+            if self.gamescope.width > 0 {
+                gamescope += &format!(" -W {}", self.gamescope.width);
+            }
+
+            // Set gamescope height
+            if self.gamescope.height > 0 {
+                gamescope += &format!(" -H {}", self.gamescope.height);
+            }
+
+            // Set focused framerate limit
+            if self.framerate.focused > 0 {
+                gamescope += &format!(" -r {}", self.framerate.focused);
+            }
+
+            // Set unfocused framerate limit
+            if self.framerate.unfocused > 0 {
+                gamescope += &format!(" -o {}", self.framerate.unfocused);
+            }
+
+            // Set integer scaling
+            if self.integer_scaling {
+                gamescope += " -n";
+            }
+
+            // Set NIS (Nvidia Image Scaling) support
+            if self.nvidia_image_scaling {
+                gamescope += " -Y";
+            }
+
+            // Set FSR support (only if NIS is not enabled)
+            else if fsr_enabled {
+                gamescope += " -U";
+            }
+
+            Some(gamescope)
+        }
+
+        else {
+            None
+        }
+    }
+}
+
+impl Default for Gamescope {
+    fn default() -> Self {
+        Self {
+            enabled: false,
+            game: Size::default(),
+            gamescope: Size::default(),
+            framerate: Framerate::default(),
+            integer_scaling: true,
+            nvidia_image_scaling: false,
+            window_type: WindowType::default()
+        }
+    }
+}
+
+impl From<&JsonValue> for Gamescope {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            enabled: match value.get("enabled") {
+                Some(value) => value.as_bool().unwrap_or(default.enabled),
+                None => default.enabled
+            },
+
+            game: match value.get("game") {
+                Some(value) => Size::from(value),
+                None => default.game
+            },
+
+            gamescope: match value.get("gamescope") {
+                Some(value) => Size::from(value),
+                None => default.gamescope
+            },
+
+            framerate: match value.get("framerate") {
+                Some(value) => Framerate::from(value),
+                None => default.framerate
+            },
+
+            integer_scaling: match value.get("integer_scaling") {
+                Some(value) => value.as_bool().unwrap_or(default.integer_scaling),
+                None => default.integer_scaling
+            },
+
+            nvidia_image_scaling: match value.get("nvidia_image_scaling") {
+                Some(value) => value.as_bool().unwrap_or(default.nvidia_image_scaling),
+                None => default.nvidia_image_scaling
+            },
+
+            window_type: match value.get("window_type") {
+                Some(value) => WindowType::from(value),
+                None => default.window_type
+            }
+        }
+    }
+}

src/lib/config/game/enhancements/gamescope/size.rs

@@ -0,0 +1,26 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
+pub struct Size {
+    pub width: u64,
+    pub height: u64
+}
+
+impl From<&JsonValue> for Size {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            width: match value.get("width") {
+                Some(value) => value.as_u64().unwrap_or(default.width),
+                None => default.width
+            },
+
+            height: match value.get("height") {
+                Some(value) => value.as_u64().unwrap_or(default.height),
+                None => default.height
+            }
+        }
+    }
+}

src/lib/config/game/enhancements/gamescope/window_type.rs

@@ -0,0 +1,20 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub enum WindowType {
+    Borderless,
+    Fullscreen
+}
+
+impl Default for WindowType {
+    fn default() -> Self {
+        Self::Borderless
+    }
+}
+
+impl From<&JsonValue> for WindowType {
+    fn from(value: &JsonValue) -> Self {
+        serde_json::from_value(value.clone()).unwrap_or(Self::default())
+    }
+}

src/lib/config/game/enhancements/hud.rs

@@ -1,8 +1,9 @@
 use std::collections::HashMap;
 
 use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
 
-use super::Config;
+use crate::lib::config::Config;
 
 #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
 pub enum HUD {
@@ -17,6 +18,12 @@ impl Default for HUD {
     }
 }
 
+impl From<&JsonValue> for HUD {
+    fn from(value: &JsonValue) -> Self {
+        serde_json::from_value(value.clone()).unwrap_or(Self::default())
+    }
+}
+
 impl TryFrom<u32> for HUD {
     type Error = String;
 

src/lib/config/game/enhancements/mod.rs

@@ -0,0 +1,52 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+pub mod fsr;
+pub mod hud;
+pub mod gamescope;
+
+pub mod prelude {
+    pub use super::gamescope::prelude::*;
+
+    pub use super::Enhancements;
+    pub use super::fsr::Fsr;
+    pub use super::hud::HUD;
+}
+
+use prelude::*;
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
+pub struct Enhancements {
+    pub fsr: Fsr,
+    pub gamemode: bool,
+    pub hud: HUD,
+    pub gamescope: Gamescope
+}
+
+impl From<&JsonValue> for Enhancements {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            fsr: match value.get("fsr") {
+                Some(value) => Fsr::from(value),
+                None => default.fsr
+            },
+
+            gamemode: match value.get("gamemode") {
+                Some(value) => value.as_bool().unwrap_or(default.gamemode),
+                None => default.gamemode
+            },
+
+            hud: match value.get("hud") {
+                Some(value) => HUD::from(value),
+                None => default.hud
+            },
+
+            gamescope: match value.get("gamescope") {
+                Some(value) => Gamescope::from(value),
+                None => default.gamescope
+            }
+        }
+    }
+}

src/lib/config/game/mod.rs

@@ -0,0 +1,127 @@
+use std::collections::HashMap;
+
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+use crate::lib::consts::launcher_dir;
+
+pub mod wine;
+pub mod dxvk;
+pub mod enhancements;
+
+pub mod prelude {
+    pub use super::enhancements::prelude::*;
+    pub use super::wine::prelude::*;
+
+    pub use super::Game;
+    pub use super::dxvk::Dxvk;
+}
+
+use prelude::*;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Game {
+    pub path: String,
+    pub voices: Vec<String>,
+    pub wine: prelude::Wine,
+    pub dxvk: prelude::Dxvk,
+    pub enhancements: prelude::Enhancements,
+    pub environment: HashMap<String, String>,
+    pub command: Option<String>
+}
+
+impl Default for Game {
+    fn default() -> Self {
+        let launcher_dir = launcher_dir().expect("Failed to get launcher dir");
+
+        Self {
+            path: format!("{launcher_dir}/game/drive_c/Program Files/Genshin Impact"),
+            voices: vec![
+                String::from("en-us")
+            ],
+            wine: Wine::default(),
+            dxvk: Dxvk::default(),
+            enhancements: Enhancements::default(),
+            environment: HashMap::new(),
+            command: None
+        }
+    }
+}
+
+impl From<&JsonValue> for Game {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            path: match value.get("path") {
+                Some(value) => value.as_str().unwrap_or(&default.path).to_string(),
+                None => default.path
+            },
+
+            voices: match value.get("voices") {
+                Some(value) => match value.as_array() {
+                    Some(values) => {
+                        let mut voices = Vec::new();
+
+                        for value in values {
+                            if let Some(voice) = value.as_str() {
+                                voices.push(voice.to_string());
+                            }
+                        }
+
+                        voices
+                    },
+                    None => default.voices
+                },
+                None => default.voices
+            },
+
+            wine: match value.get("wine") {
+                Some(value) => Wine::from(value),
+                None => default.wine
+            },
+
+            dxvk: match value.get("dxvk") {
+                Some(value) => Dxvk::from(value),
+                None => default.dxvk
+            },
+
+            enhancements: match value.get("enhancements") {
+                Some(value) => Enhancements::from(value),
+                None => default.enhancements
+            },
+
+            environment: match value.get("environment") {
+                Some(value) => match value.as_object() {
+                    Some(values) => {
+                        let mut vars = HashMap::new();
+
+                        for (name, value) in values {
+                            if let Some(value) = value.as_str() {
+                                vars.insert(name.clone(), value.to_string());
+                            }
+                        }
+
+                        vars
+                    },
+                    None => default.environment
+                },
+                None => default.environment
+            },
+
+            command: match value.get("command") {
+                Some(value) => {
+                    if value.is_null() {
+                        None
+                    } else {
+                        match value.as_str() {
+                            Some(value) => Some(value.to_string()),
+                            None => default.command
+                        }
+                    }
+                },
+                None => default.command
+            }
+        }
+    }
+}

src/lib/config/game/wine/mod.rs

@@ -0,0 +1,80 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+use crate::lib::consts::launcher_dir;
+
+pub mod wine_sync;
+pub mod wine_lang;
+
+pub mod prelude {
+    pub use super::Wine;
+    pub use super::wine_sync::WineSync;
+    pub use super::wine_lang::WineLang;
+}
+
+use prelude::*;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Wine {
+    pub prefix: String,
+    pub builds: String,
+    pub selected: Option<String>,
+    pub sync: WineSync,
+    pub language: WineLang
+}
+
+impl Default for Wine {
+    fn default() -> Self {
+        let launcher_dir = launcher_dir().expect("Failed to get launcher dir");
+
+        Self {
+            prefix: format!("{launcher_dir}/game"),
+            builds: format!("{launcher_dir}/runners"),
+            selected: None,
+            sync: WineSync::default(),
+            language: WineLang::default()
+        }
+    }
+}
+
+impl From<&JsonValue> for Wine {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            prefix: match value.get("prefix") {
+                Some(value) => value.as_str().unwrap_or(&default.prefix).to_string(),
+                None => default.prefix
+            },
+
+            builds: match value.get("builds") {
+                Some(value) => value.as_str().unwrap_or(&default.builds).to_string(),
+                None => default.builds
+            },
+
+            selected: match value.get("selected") {
+                Some(value) => {
+                    if value.is_null() {
+                        None
+                    } else {
+                        match value.as_str() {
+                            Some(value) => Some(value.to_string()),
+                            None => default.selected
+                        }
+                    }
+                },
+                None => default.selected
+            },
+
+            sync: match value.get("sync") {
+                Some(value) => WineSync::from(value),
+                None => default.sync
+            },
+
+            language: match value.get("language") {
+                Some(value) => WineLang::from(value),
+                None => default.language
+            }
+        }
+    }
+}

src/lib/config/game/wine/wine_lang.rs

@@ -0,0 +1,85 @@
+use std::collections::HashMap;
+
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum WineLang {
+    System,
+    English,
+    Russian,
+    German,
+    Portuguese,
+    Polish,
+    French,
+    Spanish,
+    Chinese,
+    Japanese,
+    Korean
+}
+
+impl Default for WineLang {
+    fn default() -> Self {
+        Self::System
+    }
+}
+
+impl From<&JsonValue> for WineLang {
+    fn from(value: &JsonValue) -> Self {
+        serde_json::from_value(value.clone()).unwrap_or(Self::default())
+    }
+}
+
+impl Into<String> for WineLang {
+    fn into(self) -> String {
+        format!("{:?}", self)
+    }
+}
+
+impl Into<u32> for WineLang {
+    fn into(self) -> u32 {
+        for (i, lang) in Self::list().into_iter().enumerate() {
+            if lang == self {
+                return i as u32;
+            }
+        }
+
+        unreachable!()
+    }
+}
+
+impl WineLang {
+    pub fn list() -> Vec<Self> {
+        vec![
+            Self::System,
+            Self::English,
+            Self::Russian,
+            Self::German,
+            Self::Portuguese,
+            Self::Polish,
+            Self::French,
+            Self::Spanish,
+            Self::Chinese,
+            Self::Japanese,
+            Self::Korean
+        ]
+    }
+
+    /// Get environment variables corresponding to used wine language
+    pub fn get_env_vars(&self) -> HashMap<&str, &str> {
+        HashMap::from([("LANG", match self {
+            Self::System => return HashMap::new(),
+
+            Self::English    => "en_US.UTF8",
+            Self::Russian    => "ru_RU.UTF8",
+            Self::German     => "de_DE.UTF8",
+            Self::Portuguese => "pt_PT.UTF8",
+            Self::Polish     => "pl-PL.UTF8",
+            Self::French     => "fr_FR.UTF8",
+            Self::Spanish    => "es_ES.UTF8",
+            Self::Chinese    => "zh_CN.UTF8",
+            Self::Japanese   => "ja_JP.UTF8",
+            Self::Korean     => "ko_KR.UTF8"
+        })])
+    }
+}

src/lib/config/game/wine/wine_sync.rs

@@ -1,6 +1,7 @@
 use std::collections::HashMap;
 
 use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
 
 #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
 pub enum WineSync {
@@ -16,6 +17,12 @@ impl Default for WineSync {
     }
 }
 
+impl From<&JsonValue> for WineSync {
+    fn from(value: &JsonValue) -> Self {
+        serde_json::from_value(value.clone()).unwrap_or(Self::default())
+    }
+}
+
 impl TryFrom<u32> for WineSync {
     type Error = String;
 

src/lib/config/launcher/mod.rs

@@ -0,0 +1,62 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+use crate::lib::consts::launcher_dir;
+
+pub mod repairer;
+
+pub mod prelude {
+    pub use super::Launcher;
+    pub use super::repairer::Repairer;
+}
+
+use prelude::*;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Launcher {
+    pub language: String,
+    pub temp: Option<String>,
+    pub repairer: Repairer
+}
+
+impl Default for Launcher {
+    fn default() -> Self {
+        Self {
+            language: String::from("en-us"),
+            temp: launcher_dir(),
+            repairer: Repairer::default()
+        }
+    }
+}
+
+impl From<&JsonValue> for Launcher {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            language: match value.get("language") {
+                Some(value) => value.as_str().unwrap_or(&default.language).to_string(),
+                None => default.language
+            },
+
+            temp: match value.get("temp") {
+                Some(value) => {
+                    if value.is_null() {
+                        None
+                    } else {
+                        match value.as_str() {
+                            Some(value) => Some(value.to_string()),
+                            None => default.temp
+                        }
+                    }
+                },
+                None => default.temp
+            },
+
+            repairer: match value.get("repairer") {
+                Some(value) => Repairer::from(value),
+                None => default.repairer
+            }
+        }
+    }
+}

src/lib/config/launcher/repairer.rs

@@ -0,0 +1,35 @@
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Repairer {
+    pub threads: u64,
+    pub fast: bool
+}
+
+impl Default for Repairer {
+    fn default() -> Self {
+        Self {
+            threads: 4,
+            fast: false
+        }
+    }
+}
+
+impl From<&JsonValue> for Repairer {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            threads: match value.get("threads") {
+                Some(value) => value.as_u64().unwrap_or(default.threads),
+                None => default.threads
+            },
+
+            fast: match value.get("fast") {
+                Some(value) => value.as_bool().unwrap_or(default.fast),
+                None => default.fast
+            }
+        }
+    }
+}

src/lib/config/mod.rs

@@ -1,10 +1,10 @@
-use std::collections::HashMap;
 use std::fs::File;
 use std::io::Read;
 use std::path::Path;
 use std::io::{Error, ErrorKind, Write};
 
 use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
 
 use crate::lib;
 use super::consts::*;
@@ -13,13 +13,18 @@ use super::wine::{
     List as WineList
 };
 
-mod hud;
-mod wine_sync;
-mod wine_lang;
+pub mod launcher;
+pub mod game;
+pub mod patch;
 
-pub use hud::HUD;
-pub use wine_sync::WineSync;
-pub use wine_lang::WineLang;
+pub mod prelude {
+    pub use super::launcher::prelude::*;
+    pub use super::game::prelude::*;
+
+    pub use super::patch::Patch;
+}
+
+use prelude::*;
 
 static mut CONFIG: Option<Config> = None;
 
@@ -50,8 +55,10 @@ pub fn get_raw() -> Result<Config, Error> {
 
                 file.read_to_string(&mut json)?;
 
-                match serde_json::from_str::<Config>(&json) {
+                match serde_json::from_str(&json) {
                     Ok(config) => {
+                        let config = Config::from(&config);
+
                         unsafe {
                             CONFIG = Some(config.clone());
                         }
@@ -179,288 +186,27 @@ impl Config {
             None => None
         }
     }
-
-    pub fn get_gamescope_command(&self) -> Option<String> {
-        // https://github.com/bottlesdevs/Bottles/blob/b908311348ed1184ead23dd76f9d8af41ff24082/src/backend/wine/winecommand.py#L478
-        if self.game.enhancements.gamescope.enabled {
-            let mut gamescope = String::from("gamescope");
-
-            // Set window type
-            match self.game.enhancements.gamescope.window_type {
-                WindowType::Borderless => gamescope += " -b",
-                WindowType::Fullscreen => gamescope += " -f"
-            }
-
-            // Set game width
-            if self.game.enhancements.gamescope.game.width > 0 {
-                gamescope += &format!(" -w {}", self.game.enhancements.gamescope.game.width);
-            }
-
-            // Set game height
-            if self.game.enhancements.gamescope.game.height > 0 {
-                gamescope += &format!(" -h {}", self.game.enhancements.gamescope.game.height);
-            }
-
-            // Set gamescope width
-            if self.game.enhancements.gamescope.gamescope.width > 0 {
-                gamescope += &format!(" -W {}", self.game.enhancements.gamescope.gamescope.width);
-            }
-
-            // Set gamescope height
-            if self.game.enhancements.gamescope.gamescope.height > 0 {
-                gamescope += &format!(" -H {}", self.game.enhancements.gamescope.gamescope.height);
-            }
-
-            // Set focused framerate limit
-            if self.game.enhancements.gamescope.framerate.focused > 0 {
-                gamescope += &format!(" -r {}", self.game.enhancements.gamescope.framerate.focused);
-            }
-
-            // Set unfocused framerate limit
-            if self.game.enhancements.gamescope.framerate.unfocused > 0 {
-                gamescope += &format!(" -o {}", self.game.enhancements.gamescope.framerate.unfocused);
-            }
-
-            // Set integer scaling
-            if self.game.enhancements.gamescope.integer_scaling {
-                gamescope += " -n";
-            }
-
-            // Set NIS (Nvidia Image Scaling) support
-            if self.game.enhancements.gamescope.nvidia_image_scaling {
-                gamescope += " -Y";
-            }
-
-            // Set FSR support (only if NIS is not enabled)
-            else if self.game.enhancements.fsr.enabled {
-                gamescope += " -U";
-            }
-
-            Some(gamescope)
-        }
-
-        else {
-            None
-        }
-    }
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Launcher {
-    pub language: String,
-    pub temp: Option<String>,
-    pub repairer: Repairer
-}
+impl From<&JsonValue> for Config {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
 
-impl Default for Launcher {
-    fn default() -> Self {
         Self {
-            language: String::from("en-us"),
-            temp: launcher_dir(),
-            repairer: Repairer::default()
-        }
-    }
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Repairer {
-    pub threads: u8,
-    pub fast: bool
-}
-
-impl Default for Repairer {
-    fn default() -> Self {
-        Self {
-            threads: 4,
-            fast: false
-        }
-    }
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Patch {
-    pub path: String,
-    pub servers: Vec<String>,
-    pub root: bool
-}
-
-impl Default for Patch {
-    fn default() -> Self {
-        Self {
-            path: match launcher_dir() {
-                Some(dir) => format!("{}/patch", dir),
-                None => String::new()
+            launcher: match value.get("launcher") {
+                Some(value) => Launcher::from(value),
+                None => default.launcher
             },
-            servers: vec![
-                "https://notabug.org/Krock/dawn".to_string(),
-                "https://dev.kaifa.ch/Maroxy/dawn".to_string()
-            ],
 
-            // Disable root requirement for patching if we're running launcher in flatpak
-            root: !Path::new("/.flatpak-info").exists()
-        }
-    }
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Game {
-    pub path: String,
-    pub voices: Vec<String>,
-    pub wine: Wine,
-    pub dxvk: Dxvk,
-    pub enhancements: Enhancements,
-    pub environment: HashMap<String, String>,
-    pub command: Option<String>
-}
-
-impl Default for Game {
-    fn default() -> Self {
-        Self {
-            path: match launcher_dir() {
-                Some(dir) => format!("{}/game/drive_c/Program Files/Genshin Impact", dir),
-                None => String::new()
+            game: match value.get("game") {
+                Some(value) => Game::from(value),
+                None => default.game
             },
-            voices: vec![
-                String::from("en-us")
-            ],
-            wine: Wine::default(),
-            dxvk: Dxvk::default(),
-            enhancements: Enhancements::default(),
-            environment: HashMap::new(),
-            command: None
+
+            patch: match value.get("patch") {
+                Some(value) => Patch::from(value),
+                None => default.patch
+            }
         }
     }
 }
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Wine {
-    pub prefix: String,
-    pub builds: String,
-    pub selected: Option<String>,
-    pub sync: WineSync,
-    pub language: WineLang
-}
-
-impl Default for Wine {
-    fn default() -> Self {
-        Self {
-            prefix: match launcher_dir() {
-                Some(dir) => format!("{}/game", dir),
-                None => String::new()
-            },
-            builds: match launcher_dir() {
-                Some(dir) => format!("{}/runners", dir),
-                None => String::new()
-            },
-            selected: None,
-            sync: WineSync::default(),
-            language: WineLang::default()
-        }
-    }
-}
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct Dxvk {
-    pub builds: String,
-    pub selected: Option<String>
-}
-
-impl Default for Dxvk {
-    fn default() -> Self {
-        Self {
-            builds: match launcher_dir() {
-                Some(dir) => format!("{}/dxvks", dir),
-                None => String::new()
-            },
-            selected: None
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
-pub struct Enhancements {
-    pub fsr: Fsr,
-    pub gamemode: bool,
-    pub hud: HUD,
-    pub gamescope: Gamescope
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
-pub struct Fsr {
-    pub strength: u32,
-    pub enabled: bool
-}
-
-impl Default for Fsr {
-    fn default() -> Self {
-        Self {
-            strength: 2,
-            enabled: false
-        }
-    }
-}
-
-impl Fsr {
-    /// Get environment variables corresponding to used amd fsr options
-    pub fn get_env_vars(&self) -> HashMap<&str, String> {
-        if self.enabled {
-            HashMap::from([
-                ("WINE_FULLSCREEN_FSR", String::from("1")),
-                ("WINE_FULLSCREEN_FSR_STRENGTH", self.strength.to_string())
-            ])
-        }
-        
-        else {
-            HashMap::new()
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
-pub struct Gamescope {
-    pub enabled: bool,
-    pub game: Size,
-    pub gamescope: Size,
-    pub framerate: Framerate,
-    pub integer_scaling: bool,
-    pub nvidia_image_scaling: bool,
-    pub window_type: WindowType
-}
-
-impl Default for Gamescope {
-    fn default() -> Self {
-        Self {
-            enabled: false,
-            game: Size::default(),
-            gamescope: Size::default(),
-            framerate: Framerate::default(),
-            integer_scaling: true,
-            nvidia_image_scaling: false,
-            window_type: WindowType::default()
-        }
-    }
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
-pub struct Size {
-    pub width: u16,
-    pub height: u16
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize, Default)]
-pub struct Framerate {
-    pub focused: u16,
-    pub unfocused: u16
-}
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
-pub enum WindowType {
-    Borderless,
-    Fullscreen
-}
-
-impl Default for WindowType {
-    fn default() -> Self {
-        Self::Borderless
-    }
-}

src/lib/config/patch.rs

@@ -0,0 +1,66 @@
+use std::path::Path;
+
+use serde::{Serialize, Deserialize};
+use serde_json::Value as JsonValue;
+
+use crate::lib::consts::launcher_dir;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Patch {
+    pub path: String,
+    pub servers: Vec<String>,
+    pub root: bool
+}
+
+impl Default for Patch {
+    fn default() -> Self {
+        let launcher_dir = launcher_dir().expect("Failed to get launcher dir");
+
+        Self {
+            path: format!("{launcher_dir}/patch"),
+            servers: vec![
+                "https://notabug.org/Krock/dawn".to_string(),
+                "https://dev.kaifa.ch/Maroxy/dawn".to_string()
+            ],
+
+            // Disable root requirement for patching if we're running launcher in flatpak
+            root: !Path::new("/.flatpak-info").exists()
+        }
+    }
+}
+
+impl From<&JsonValue> for Patch {
+    fn from(value: &JsonValue) -> Self {
+        let default = Self::default();
+
+        Self {
+            path: match value.get("path") {
+                Some(value) => value.as_str().unwrap_or(&default.path).to_string(),
+                None => default.path
+            },
+
+            servers: match value.get("servers") {
+                Some(value) => match value.as_array() {
+                    Some(values) => {
+                        let mut servers = Vec::new();
+
+                        for value in values {
+                            if let Some(server) = value.as_str() {
+                                servers.push(server.to_string());
+                            }
+                        }
+
+                        servers
+                    },
+                    None => default.servers
+                },
+                None => default.servers
+            },
+
+            root: match value.get("root") {
+                Some(value) => value.as_bool().unwrap_or(default.root),
+                None => default.root
+            }
+        }
+    }
+}

src/lib/config/wine_lang.rs

@@ -1,79 +0,0 @@
-use std::collections::HashMap;
-
-use serde::{Serialize, Deserialize};
-
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
-pub enum WineLang {
-    System,
-    English,
-    German,
-    Russian,
-    Portuguese,
-    French,
-    Chinese,
-    Spanish,
-    Japanese,
-    Korean
-}
-
-impl Default for WineLang {
-    fn default() -> Self {
-        Self::System
-    }
-}
-
-impl TryFrom<u32> for WineLang {
-    type Error = String;
-
-    fn try_from(value: u32) -> Result<Self, Self::Error> {
-        match value {
-            0 => Ok(Self::System),
-            1 => Ok(Self::English),
-            2 => Ok(Self::German),
-            3 => Ok(Self::Russian),
-            4 => Ok(Self::Portuguese),
-            5 => Ok(Self::French),
-            6 => Ok(Self::Chinese),
-            7 => Ok(Self::Spanish),
-            8 => Ok(Self::Japanese),
-            9 => Ok(Self::Korean),
-            _ => Err(String::from("Failed to convert number to WineLang enum"))
-        }
-    }
-}
-
-impl Into<u32> for WineLang {
-    fn into(self) -> u32 {
-        match self {
-            WineLang::System     => 0,
-            WineLang::English    => 1,
-            WineLang::German     => 2,
-            WineLang::Russian    => 3,
-            WineLang::Portuguese => 4,
-            WineLang::French     => 5,
-            WineLang::Chinese    => 6,
-            WineLang::Spanish    => 7,
-            WineLang::Japanese   => 8,
-            WineLang::Korean     => 9
-        }
-    }
-}
-
-impl WineLang {
-    /// Get environment variables corresponding to used wine language
-    pub fn get_env_vars(&self) -> HashMap<&str, &str> {
-        HashMap::from([("LANG", match self {
-            WineLang::System => return HashMap::new(),
-
-            WineLang::English    => "en_US.UTF8",
-            WineLang::German     => "de_DE.UTF8",
-            WineLang::Russian    => "ru_RU.UTF8",
-            WineLang::Portuguese => "pt_PT.UTF8",
-            WineLang::French     => "fr_FR.UTF8",
-            WineLang::Chinese    => "zh_CN.UTF8",
-            WineLang::Spanish    => "es_ES.UTF8",
-            WineLang::Japanese   => "ja_JP.UTF8",
-            WineLang::Korean     => "ko_KR.UTF8"
-        })])
-    }
-}

src/lib/game.rs

@@ -99,7 +99,7 @@ pub fn run(debug: bool) -> std::io::Result<()> {
     }
 
     // gamescope <params> -- <command to run>
-    if let Some(gamescope) = config.get_gamescope_command() {
+    if let Some(gamescope) = config.game.enhancements.gamescope.get_command(config.game.enhancements.fsr.enabled) {
         bash_chain = format!("{gamescope} -- {bash_chain}");
     }
 

src/main.rs

@@ -48,7 +48,7 @@ fn main() {
         );
 
         // Create default launcher folder if needed
-        let launcher_dir = lib::consts::launcher_dir().unwrap();
+        let launcher_dir = lib::consts::launcher_dir().expect("Failed to get launcher dir");
 
         if !Path::new(&launcher_dir).exists() || Path::new(&format!("{}/.first-run", launcher_dir)).exists() {
             fs::create_dir_all(&launcher_dir).expect("Failed to create default launcher dir");

src/ui/preferences/enhancements.rs

@@ -6,6 +6,7 @@ use gtk::glib::clone;
 
 use crate::lib;
 use crate::lib::config;
+use crate::lib::config::prelude::*;
 
 use crate::ui::*;
 
@@ -61,6 +62,17 @@ impl AppWidgets {
             gamescope_app: GamescopeApp::new(window)?
         };
 
+        // Set availale wine languages
+        let model = gtk::StringList::new(&[]);
+
+        for lang in WineLang::list() {
+            let lang: String = lang.into();
+
+            model.append(&lang);
+        }
+
+        result.wine_lang.set_model(Some(&model));
+
         // Disable gamemode row if it's not available
         if !lib::is_available("gamemoderun") {
             result.gamemode_row.set_sensitive(false);
@@ -108,7 +120,7 @@ impl App {
         // Wine sync selection
         self.widgets.sync_combo.connect_selected_notify(move |row| {
             if let Ok(mut config) = config::get() {
-                config.game.wine.sync = config::WineSync::try_from(row.selected()).unwrap();
+                config.game.wine.sync = WineSync::try_from(row.selected()).unwrap();
 
                 config::update(config);
             }
@@ -117,7 +129,7 @@ impl App {
         // Wine language selection
         self.widgets.wine_lang.connect_selected_notify(move |row| {
             if let Ok(mut config) = config::get() {
-                config.game.wine.language = config::WineLang::try_from(row.selected()).unwrap();
+                config.game.wine.language = WineLang::list()[row.selected() as usize];
 
                 config::update(config);
             }
@@ -126,7 +138,7 @@ impl App {
         // HUD selection
         self.widgets.hud_combo.connect_selected_notify(move |row| {
             if let Ok(mut config) = config::get() {
-                config.game.enhancements.hud = config::HUD::try_from(row.selected()).unwrap();
+                config.game.enhancements.hud = HUD::try_from(row.selected()).unwrap();
 
                 config::update(config);
             }
@@ -142,7 +154,7 @@ impl App {
         // Source: Bottles (https://github.com/bottlesdevs/Bottles/blob/22fa3573a13f4e9b9c429e4cdfe4ca29787a2832/src/ui/details-preferences.ui#L88)
         self.widgets.fsr_combo.connect_selected_notify(move |row| {
             if let Ok(mut config) = config::get() {
-                config.game.enhancements.fsr.strength = 5 - row.selected();
+                config.game.enhancements.fsr.strength = 5 - row.selected() as u64;
 
                 config::update(config);
             }
@@ -207,7 +219,7 @@ impl App {
         self.widgets.hud_combo.set_selected(config.game.enhancements.hud.into());
 
         // FSR strength selection
-        self.widgets.fsr_combo.set_selected(5 - config.game.enhancements.fsr.strength);
+        self.widgets.fsr_combo.set_selected(5 - config.game.enhancements.fsr.strength as u32);
 
         // FSR switching
         self.widgets.fsr_switcher.set_state(config.game.enhancements.fsr.enabled);

src/ui/preferences/gamescope.rs

@@ -3,8 +3,10 @@ use libadwaita::{self as adw, prelude::*};
 
 use gtk::glib;
 
-use crate::ui::get_object;
 use crate::lib::config;
+use crate::lib::config::prelude::*;
+
+use crate::ui::*;
 
 /// This structure is used to describe widgets used in application
 /// 
@@ -174,9 +176,9 @@ impl App {
 
                 if let Ok(mut config) = config::get() {
                     config.game.enhancements.gamescope.window_type = if button.is_active() {
-                        config::WindowType::Borderless
+                        WindowType::Borderless
                     } else {
-                        config::WindowType::Fullscreen
+                        WindowType::Fullscreen
                     };
     
                     config::update(config);
@@ -195,9 +197,9 @@ impl App {
 
                 if let Ok(mut config) = config::get() {
                     config.game.enhancements.gamescope.window_type = if button.is_active() {
-                        config::WindowType::Fullscreen
+                        WindowType::Fullscreen
                     } else {
-                        config::WindowType::Borderless
+                        WindowType::Borderless
                     };
     
                     config::update(config);
@@ -214,7 +216,7 @@ impl App {
 
         status_page.set_description(Some("Loading gamescope..."));
 
-        fn set_text(widget: &gtk::Entry, value: u16) {
+        fn set_text(widget: &gtk::Entry, value: u64) {
             widget.set_text(&if value == 0 { String::new() } else { value.to_string() });
         }
 
@@ -231,8 +233,8 @@ impl App {
         self.widgets.nvidia_image_scaling.set_state(config.game.enhancements.gamescope.nvidia_image_scaling);
 
         match config.game.enhancements.gamescope.window_type {
-            config::WindowType::Borderless => self.widgets.borderless.set_active(true),
-            config::WindowType::Fullscreen => self.widgets.fullscreen.set_active(true)
+            WindowType::Borderless => self.widgets.borderless.set_active(true),
+            WindowType::Fullscreen => self.widgets.fullscreen.set_active(true)
         };
 
         Ok(())