chore: Initial path normalisation & parsing with backup generation

Signed-off-by: quexeky <git@quexeky.dev>

desktop/src-tauri/src/cloud_saves/backup_manager.rs

@@ -0,0 +1,97 @@
+use std::{collections::HashMap, path::PathBuf, str::FromStr};
+
+use log::warn;
+
+use crate::{database::db::GameVersion, error::backup_error::BackupError, process::process_manager::Platform};
+
+use super::path::CommonPath;
+
+pub struct BackupManager<'a> {
+    pub current_platform: Platform,
+    pub sources: HashMap<(Platform, Platform), &'a (dyn BackupHandler + Sync + Send)>,
+}
+
+impl BackupManager<'_> {
+    pub fn new() -> Self {
+        BackupManager {
+            #[cfg(target_os = "windows")]
+            current_platform: Platform::Windows,
+
+            #[cfg(target_os = "macos")]
+            current_platform: Platform::MacOs,
+
+            #[cfg(target_os = "linux")]
+            current_platform: Platform::Linux,
+
+            sources: HashMap::from([
+                // Current platform to target platform
+                (
+                    (Platform::Windows, Platform::Windows),
+                    &WindowsBackupManager {} as &(dyn BackupHandler + Sync + Send),
+                ),
+                (
+                    (Platform::Linux, Platform::Linux),
+                    &LinuxBackupManager {} as &(dyn BackupHandler + Sync + Send),
+                ),
+                (
+                    (Platform::MacOs, Platform::MacOs),
+                    &MacBackupManager {} as &(dyn BackupHandler + Sync + Send),
+                ),
+                
+            ]),
+        }
+    }
+    
+}
+
+pub trait BackupHandler: Send + Sync {
+    fn root_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError>;
+    fn game_translate(&self, _path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> { Ok(PathBuf::from_str(&game.game_id).unwrap()) }
+    fn base_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> { Ok(self.root_translate(path, game)?.join(self.game_translate(path, game)?)) }
+    fn home_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { let c = CommonPath::Home.get().ok_or(BackupError::NotFound); println!("{:?}", c); c }
+    fn store_user_id_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError>;
+    fn os_user_name_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { Ok(PathBuf::from_str(&whoami::username()).unwrap()) }
+    fn win_app_data_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winAppData>"); Err(BackupError::InvalidSystem) }
+    fn win_local_app_data_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winLocalAppData>"); Err(BackupError::InvalidSystem) }
+    fn win_local_app_data_low_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winLocalAppDataLow>"); Err(BackupError::InvalidSystem) }
+    fn win_documents_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winDocuments>"); Err(BackupError::InvalidSystem) }
+    fn win_public_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winPublic>"); Err(BackupError::InvalidSystem) }
+    fn win_program_data_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winProgramData>"); Err(BackupError::InvalidSystem) }
+    fn win_dir_translate(&self, _path: &PathBuf,_game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected Windows Reference in Backup <winDir>"); Err(BackupError::InvalidSystem) }
+    fn xdg_data_translate(&self, _path: &PathBuf,_game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected XDG Reference in Backup <xdgData>"); Err(BackupError::InvalidSystem) }
+    fn xdg_config_translate(&self, _path: &PathBuf,_game: &GameVersion) -> Result<PathBuf, BackupError> { warn!("Unexpected XDG Reference in Backup <xdgConfig>"); Err(BackupError::InvalidSystem) }
+    fn skip_translate(&self, _path: &PathBuf, _game: &GameVersion) -> Result<PathBuf, BackupError> { Ok(PathBuf::new()) }
+}
+
+pub struct LinuxBackupManager {}
+impl BackupHandler for LinuxBackupManager {
+    fn root_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        println!("Root translate");
+        PathBuf::from_str("~").map_err(|_| BackupError::ParseError)
+    }
+
+    fn store_user_id_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        println!("Store user id translate");
+        PathBuf::from_str("ID").map_err(|_| BackupError::ParseError)
+    }
+}
+pub struct WindowsBackupManager {}
+impl BackupHandler for WindowsBackupManager {
+    fn root_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        todo!()
+    }
+
+    fn store_user_id_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        todo!()
+    }
+}
+pub struct MacBackupManager {}
+impl BackupHandler for MacBackupManager {
+    fn root_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        todo!()
+    }
+
+    fn store_user_id_translate(&self, path: &PathBuf, game: &GameVersion) -> Result<PathBuf, BackupError> {
+        todo!()
+    }
+}

desktop/src-tauri/src/cloud_saves/conditions.rs

@@ -0,0 +1,6 @@
+use crate::process::process_manager::Platform;
+
+#[derive(Clone, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
+pub enum Condition {
+    Os(Platform)
+}

desktop/src-tauri/src/cloud_saves/metadata.rs

@@ -0,0 +1,35 @@
+use crate::database::db::GameVersion;
+
+use super::conditions::{Condition};
+
+
+#[derive(Clone, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
+pub struct CloudSaveMetadata {
+    pub files: Vec<GameFile>,
+    pub game_version: GameVersion,
+    pub save_id: String,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
+pub struct GameFile {
+    pub path: String,
+    pub id: Option<String>,
+    pub data_type: DataType,
+    pub tags: Vec<Tag>,
+    pub conditions: Vec<Condition>
+}
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, serde::Serialize, serde::Deserialize)]
+pub enum DataType {
+    Registry,
+    File,
+    Other
+}
+#[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub enum Tag {
+    Config,
+    Save,
+    #[default]
+    #[serde(other)]
+    Other,
+}

desktop/src-tauri/src/cloud_saves/mod.rs

@@ -0,0 +1,8 @@
+pub mod conditions;
+pub mod metadata;
+pub mod resolver;
+pub mod placeholder;
+pub mod normalise;
+pub mod parse;
+pub mod path;
+pub mod backup_manager;

desktop/src-tauri/src/cloud_saves/normalise.rs

@@ -0,0 +1,162 @@
+use std::sync::LazyLock;
+
+use regex::Regex;
+use crate::process::process_manager::Platform;
+
+use super::placeholder::*;
+
+
+pub fn normalize(path: &str, os: Platform) -> String {
+    let mut path = path.trim().trim_end_matches(['/', '\\']).replace('\\', "/");
+
+    if path == "~" || path.starts_with("~/") {
+        path = path.replacen('~', HOME, 1);
+    }
+
+    static CONSECUTIVE_SLASHES: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"/{2,}").unwrap());
+    static UNNECESSARY_DOUBLE_STAR_1: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"([^/*])\*{2,}").unwrap());
+    static UNNECESSARY_DOUBLE_STAR_2: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"\*{2,}([^/*])").unwrap());
+    static ENDING_WILDCARD: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(/\*)+$").unwrap());
+    static ENDING_DOT: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(/\.)$").unwrap());
+    static INTERMEDIATE_DOT: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(/\./)").unwrap());
+    static BLANK_SEGMENT: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(/\s+/)").unwrap());
+    static APP_DATA: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%appdata%").unwrap());
+    static APP_DATA_ROAMING: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%userprofile%/AppData/Roaming").unwrap());
+    static APP_DATA_LOCAL: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%localappdata%").unwrap());
+    static APP_DATA_LOCAL_2: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%userprofile%/AppData/Local/").unwrap());
+    static USER_PROFILE: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%userprofile%").unwrap());
+    static DOCUMENTS: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"(?i)%userprofile%/Documents").unwrap());
+
+    for (pattern, replacement) in [
+        (&CONSECUTIVE_SLASHES, "/"),
+        (&UNNECESSARY_DOUBLE_STAR_1, "${1}*"),
+        (&UNNECESSARY_DOUBLE_STAR_2, "*${1}"),
+        (&ENDING_WILDCARD, ""),
+        (&ENDING_DOT, ""),
+        (&INTERMEDIATE_DOT, "/"),
+        (&BLANK_SEGMENT, "/"),
+        (&APP_DATA, WIN_APP_DATA),
+        (&APP_DATA_ROAMING, WIN_APP_DATA),
+        (&APP_DATA_LOCAL, WIN_LOCAL_APP_DATA),
+        (&APP_DATA_LOCAL_2, &format!("{}/", WIN_LOCAL_APP_DATA)),
+        (&USER_PROFILE, HOME),
+        (&DOCUMENTS, WIN_DOCUMENTS),
+    ] {
+        path = pattern.replace_all(&path, replacement).to_string();
+    }
+
+    if os == Platform::Windows {
+        let documents_2: Regex = Regex::new(r"(?i)<home>/Documents").unwrap();
+
+        #[allow(clippy::single_element_loop)]
+        for (pattern, replacement) in [(&documents_2, WIN_DOCUMENTS)] {
+            path = pattern.replace_all(&path, replacement).to_string();
+        }
+    }
+
+    for (pattern, replacement) in [
+        ("{64BitSteamID}", STORE_USER_ID),
+        ("{Steam3AccountID}", STORE_USER_ID),
+    ] {
+        path = path.replace(pattern, replacement);
+    }
+
+    path
+}
+
+fn too_broad(path: &str) -> bool {
+    println!("Path: {}", path);
+    use {BASE, HOME, ROOT, STORE_USER_ID, WIN_APP_DATA, WIN_DIR, WIN_DOCUMENTS, XDG_CONFIG, XDG_DATA};
+
+    let path_lower = path.to_lowercase();
+
+    for item in ALL {
+        if path == *item {
+            return true;
+        }
+    }
+
+    for item in AVOID_WILDCARDS {
+        if path.starts_with(&format!("{}/*", item)) || path.starts_with(&format!("{}/{}", item, STORE_USER_ID)) {
+            return true;
+        }
+    }
+
+    // These paths are present whether or not the game is installed.
+    // If possible, they should be narrowed down on the wiki.
+    for item in [
+        format!("{}/{}", BASE, STORE_USER_ID), // because `<storeUserId>` is handled as `*`
+        format!("{}/Documents", HOME),
+        format!("{}/Saved Games", HOME),
+        format!("{}/AppData", HOME),
+        format!("{}/AppData/Local", HOME),
+        format!("{}/AppData/Local/Packages", HOME),
+        format!("{}/AppData/LocalLow", HOME),
+        format!("{}/AppData/Roaming", HOME),
+        format!("{}/Documents/My Games", HOME),
+        format!("{}/Library/Application Support", HOME),
+        format!("{}/Library/Application Support/UserData", HOME),
+        format!("{}/Library/Preferences", HOME),
+        format!("{}/.renpy", HOME),
+        format!("{}/.renpy/persistent", HOME),
+        format!("{}/Library", HOME),
+        format!("{}/Library/RenPy", HOME),
+        format!("{}/Telltale Games", HOME),
+        format!("{}/config", ROOT),
+        format!("{}/MMFApplications", WIN_APP_DATA),
+        format!("{}/RenPy", WIN_APP_DATA),
+        format!("{}/RenPy/persistent", WIN_APP_DATA),
+        format!("{}/win.ini", WIN_DIR),
+        format!("{}/SysWOW64", WIN_DIR),
+        format!("{}/My Games", WIN_DOCUMENTS),
+        format!("{}/Telltale Games", WIN_DOCUMENTS),
+        format!("{}/unity3d", XDG_CONFIG),
+        format!("{}/unity3d", XDG_DATA),
+        "C:/Program Files".to_string(),
+        "C:/Program Files (x86)".to_string(),
+    ] {
+        let item = item.to_lowercase();
+        if path_lower == item
+            || path_lower.starts_with(&format!("{}/*", item))
+            || path_lower.starts_with(&format!("{}/{}", item, STORE_USER_ID.to_lowercase()))
+            || path_lower.starts_with(&format!("{}/savesdir", item))
+        {
+            return true;
+        }
+    }
+    
+
+    // Drive letters:
+    let drives: Regex = Regex::new(r"^[a-zA-Z]:$").unwrap();
+    if drives.is_match(path) {
+        return true;
+    }
+
+    // Colon not for a drive letter
+    if path.get(2..).is_some_and(|path| path.contains(':')) {
+        return true;
+    }
+
+    // Root:
+    if path == "/" {
+        return true;
+    }
+
+    // Relative path wildcard:
+    if path.starts_with('*') {
+        return true;
+    }
+
+    false
+}
+
+pub fn usable(path: &str) -> bool {
+    let unprintable: Regex = Regex::new(r"(\p{Cc}|\p{Cf})").unwrap();
+
+    !path.is_empty()
+        && !path.contains("{{")
+        && !path.starts_with("./")
+        && !path.starts_with("../")
+        && !too_broad(path)
+        && !unprintable.is_match(path)
+}

desktop/src-tauri/src/cloud_saves/path.rs

@@ -0,0 +1,48 @@
+use std::{path::PathBuf, sync::LazyLock};
+
+pub enum CommonPath {
+    Config,
+    Data,
+    DataLocal,
+    DataLocalLow,
+    Document,
+    Home,
+    Public,
+    SavedGames,
+}
+
+impl CommonPath {
+    pub fn get(&self) -> Option<PathBuf> {
+        static CONFIG: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::config_dir());
+        static DATA: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::data_dir());
+        static DATA_LOCAL: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::data_local_dir());
+        static DOCUMENT: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::document_dir());
+        static HOME: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::home_dir());
+        static PUBLIC: LazyLock<Option<PathBuf>> = LazyLock::new(|| dirs::public_dir());
+
+        #[cfg(windows)]
+        static DATA_LOCAL_LOW: LazyLock<Option<PathBuf>> = LazyLock::new(|| {
+            known_folders::get_known_folder_path(known_folders::KnownFolder::LocalAppDataLow)
+        });
+        #[cfg(not(windows))]
+        static DATA_LOCAL_LOW: Option<PathBuf> = None;
+
+        #[cfg(windows)]
+        static SAVED_GAMES: LazyLock<Option<PathBuf>> = LazyLock::new(|| {
+            known_folders::get_known_folder_path(known_folders::KnownFolder::SavedGames)
+        });
+        #[cfg(not(windows))]
+        static SAVED_GAMES: Option<PathBuf> = None;
+
+        match self {
+            Self::Config => CONFIG.clone(),
+            Self::Data => DATA.clone(),
+            Self::DataLocal => DATA_LOCAL.clone(),
+            Self::DataLocalLow => DATA_LOCAL_LOW.clone(),
+            Self::Document => DOCUMENT.clone(),
+            Self::Home => HOME.clone(),
+            Self::Public => PUBLIC.clone(),
+            Self::SavedGames => SAVED_GAMES.clone(),
+        }
+    }
+}

desktop/src-tauri/src/cloud_saves/placeholder.rs

@@ -0,0 +1,54 @@
+use std::sync::LazyLock;
+
+use crate::process::process_manager::Platform;
+
+pub const ALL: &[&str] = &[
+    ROOT,
+    GAME,
+    BASE,
+    HOME,
+    STORE_USER_ID,
+    OS_USER_NAME,
+    WIN_APP_DATA,
+    WIN_LOCAL_APP_DATA,
+    WIN_DOCUMENTS,
+    WIN_PUBLIC,
+    WIN_PROGRAM_DATA,
+    WIN_DIR,
+    XDG_DATA,
+    XDG_CONFIG,
+];
+
+/// These are paths where `<placeholder>/*/` is suspicious.
+pub const AVOID_WILDCARDS: &[&str] = &[
+    ROOT,
+    HOME,
+    WIN_APP_DATA,
+    WIN_LOCAL_APP_DATA,
+    WIN_DOCUMENTS,
+    WIN_PUBLIC,
+    WIN_PROGRAM_DATA,
+    WIN_DIR,
+    XDG_DATA,
+    XDG_CONFIG,
+];
+
+pub const ROOT: &str = "<root>";
+pub const GAME: &str = "<game>";
+pub const BASE: &str = "<base>";
+pub const HOME: &str = "<home>";
+pub const STORE_USER_ID: &str = "<storeUserId>";
+pub const OS_USER_NAME: &str = "<osUserName>";
+pub const WIN_APP_DATA: &str = "<winAppData>";
+pub const WIN_LOCAL_APP_DATA: &str = "<winLocalAppData>";
+pub const WIN_LOCAL_APP_DATA_LOW: &str = "<winLocalAppDataLow>";
+pub const WIN_DOCUMENTS: &str = "<winDocuments>";
+pub const WIN_PUBLIC: &str = "<winPublic>";
+pub const WIN_PROGRAM_DATA: &str = "<winProgramData>";
+pub const WIN_DIR: &str = "<winDir>";
+pub const XDG_DATA: &str = "<xdgData>";
+pub const XDG_CONFIG: &str = "<xdgConfig>";
+pub const SKIP: &str = "<skip>";
+
+pub static OS_USERNAME: LazyLock<String> = LazyLock::new(|| whoami::username());
+

desktop/src-tauri/src/cloud_saves/resolver.rs

@@ -0,0 +1,125 @@
+use std::{fs::File, io::Write, path::{Component, PathBuf}};
+
+use super::{backup_manager::BackupHandler, conditions::Condition, metadata::GameFile, placeholder::*};
+use log::warn;
+use rustix::path::Arg;
+use tempfile::tempfile;
+
+use crate::{
+    database::db::GameVersion, error::backup_error::BackupError, process::process_manager::Platform,
+};
+
+use super::{backup_manager::BackupManager, metadata::CloudSaveMetadata, normalise::normalize};
+
+pub fn resolve(meta: &mut CloudSaveMetadata) -> File {
+    let f = File::create_new("save").unwrap();
+    let compressor = zstd::Encoder::new(f, 22).unwrap();
+    let mut tarball = tar::Builder::new(compressor);
+    let manager = BackupManager::new();
+    for file in meta.files.iter_mut() {
+        let id = uuid::Uuid::new_v4().to_string();
+        let os = match file
+            .conditions
+            .iter()
+            .find_map(|p| match p {
+                super::conditions::Condition::Os(os) => Some(os),
+                _ => None,
+            })
+            .cloned()
+        {
+            Some(os) => os,
+            None => {
+                warn!(
+                    "File {:?} could not be backed up because it did not provide an OS",
+                    &file
+                );
+                continue;
+            }
+        };
+        let handler = match manager.sources.get(&(manager.current_platform, os)) {
+            Some(h) => *h,
+            None => continue,
+        };
+        let t_path = PathBuf::from(normalize(&file.path, os));
+        println!("{:?}", &t_path);
+        let path = parse_path(t_path, handler, &meta.game_version).unwrap();
+        let f = std::fs::metadata(&path).unwrap(); // TODO: Fix unwrap here
+        if f.is_dir() {
+            tarball.append_dir(&id, path).unwrap();
+        } else if f.is_file() {
+            tarball
+                .append_file(&id, &mut File::open(path).unwrap())
+                .unwrap();
+        }
+        file.id = Some(id);
+    }
+    let binding = serde_json::to_string(meta).unwrap();
+    println!("Binding: {}", &binding);
+    let serialized = binding.as_bytes();
+    let mut file = tempfile().unwrap();
+    file.write(serialized).unwrap();
+    tarball.append_file("metadata", &mut file).unwrap();
+    tarball.into_inner().unwrap().finish().unwrap()
+}
+
+pub fn parse_path(
+    path: PathBuf,
+    backup_handler: &dyn BackupHandler,
+    game: &GameVersion,
+) -> Result<PathBuf, BackupError> {
+    println!("Parsing: {:?}", &path);
+    let mut s = PathBuf::new();
+    for component in path.components() {
+        match component.as_str().unwrap() {
+            ROOT => { s.push(backup_handler.root_translate(&path, game)?)},
+            GAME => { s.push(backup_handler.game_translate(&path, game)?)},
+            BASE => { s.push(backup_handler.base_translate(&path, game)?)},
+            HOME => { s.push(backup_handler.home_translate(&path, game)?)},
+            STORE_USER_ID => { s.push(backup_handler.store_user_id_translate(&path, game)?)},
+            OS_USER_NAME => { s.push(backup_handler.os_user_name_translate(&path, game)?)},
+            WIN_APP_DATA => { s.push(backup_handler.win_app_data_translate(&path, game)?)},
+            WIN_LOCAL_APP_DATA => { s.push(backup_handler.win_local_app_data_translate(&path, game)?)},
+            WIN_LOCAL_APP_DATA_LOW => { s.push(backup_handler.win_local_app_data_low_translate(&path, game)?)},
+            WIN_DOCUMENTS => { s.push(backup_handler.win_documents_translate(&path, game)?)},
+            WIN_PUBLIC => { s.push(backup_handler.win_public_translate(&path, game)?)},
+            WIN_PROGRAM_DATA => { s.push(backup_handler.win_program_data_translate(&path, game)?)},
+            WIN_DIR => { s.push(backup_handler.win_dir_translate(&path, game)?)},
+            XDG_DATA => { s.push(backup_handler.xdg_data_translate(&path, game)?)},
+            XDG_CONFIG => { s.push(backup_handler.xdg_config_translate(&path, game)?)},
+            SKIP => {  },
+            _ => s.push(PathBuf::from(component.as_os_str()))
+        }
+    }
+
+    println!("Final line: {:?}", &s);
+    Ok(s)
+}
+
+pub fn test() {
+    let mut meta = CloudSaveMetadata {
+        files: vec![GameFile {
+            path: String::from("<home>/favicon.png"),
+            id: None,
+            data_type: super::metadata::DataType::File,
+            tags: Vec::new(),
+            conditions: vec![Condition::Os(Platform::Linux)],
+        }],
+        game_version: GameVersion {
+            game_id: String::new(),
+            version_name: String::new(),
+            platform: Platform::Linux,
+            launch_command: String::new(),
+            launch_args: Vec::new(),
+            launch_command_template: String::new(),
+            setup_command: String::new(),
+            setup_args: Vec::new(),
+            setup_command_template: String::new(),
+            only_setup: true,
+            version_index: 0,
+            delta: false,
+            umu_id_override: None,
+        },
+        save_id: String::from("aaaaaaa"),
+    };
+    let file = resolve(&mut meta);
+}

desktop/src-tauri/src/database/db.rs

@@ -5,7 +5,6 @@ use std::{
 };
 
 use chrono::Utc;
-use directories::BaseDirs;
 use log::{debug, error, info};
 use rustbreak::{DeSerError, DeSerializer, PathDatabase, RustbreakError};
 use serde::{de::DeserializeOwned, Serialize};
@@ -16,7 +15,8 @@ use crate::DB;
 use super::models::data::Database;
 
 pub static DATA_ROOT_DIR: LazyLock<Mutex<PathBuf>> =
-    LazyLock::new(|| Mutex::new(BaseDirs::new().unwrap().data_dir().join("drop")));
+    LazyLock::new(|| Mutex::new(dirs::data_dir().unwrap().join("drop")));
+
 
 // Custom JSON serializer to support everything we need
 #[derive(Debug, Default, Clone)]

desktop/src-tauri/src/error/backup_error.rs

@@ -0,0 +1,21 @@
+use std::fmt::Display;
+
+use serde_with::SerializeDisplay;
+
+#[derive(Debug, SerializeDisplay, Clone, Copy)]
+pub enum BackupError {
+    InvalidSystem,
+    NotFound,
+    ParseError
+}
+
+impl Display for BackupError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let s = match self {
+            BackupError::InvalidSystem => "Attempted to generate path for invalid system",
+            BackupError::NotFound => "Could not generate or find path",
+            BackupError::ParseError => "Failed to parse path",
+        };
+        write!(f, "{}", s)
+    }
+}

desktop/src-tauri/src/error/mod.rs

@@ -5,3 +5,4 @@ pub mod library_error;
 pub mod process_error;
 pub mod remote_access_error;
 pub mod setup_error;
+pub mod backup_error;

desktop/src-tauri/src/process/process_manager.rs

@@ -328,13 +328,56 @@ impl ProcessManager<'_> {
     }
 }
 
-#[derive(Eq, Hash, PartialEq, Serialize, Deserialize, Clone, Debug)]
+#[derive(Eq, Hash, PartialEq, Serialize, Deserialize, Clone, Copy, Debug)]
 pub enum Platform {
     Windows,
     Linux,
     MacOs,
 }
 
+impl Platform {
+    const WINDOWS: bool = cfg!(target_os = "windows");
+    const MAC: bool = cfg!(target_os = "macos");
+    const LINUX: bool = cfg!(target_os = "linux");
+    #[cfg(target_os = "windows")]
+    pub const HOST: Platform = Self::Windows;
+    #[cfg(target_os = "macos")]
+    pub const HOST: Platform = Self::MacOs;
+    #[cfg(target_os = "linux")]
+    pub const HOST: Platform = Self::Linux;
+
+
+
+    pub fn is_case_sensitive(&self) -> bool {
+        match self {
+            Self::Windows | Self::MacOs => false,
+            Self::Linux => true,
+        }
+    }
+}
+
+impl From<&str> for Platform {
+    fn from(value: &str) -> Self {
+        match value.to_lowercase().trim() {
+            "windows" => Self::Windows,
+            "linux" => Self::Linux,
+            "mac" | "macos" => Self::MacOs,
+            _ => unimplemented!(),
+        }
+    }
+}
+
+impl From<whoami::Platform> for Platform {
+    fn from(value: whoami::Platform) -> Self {
+        match value {
+            whoami::Platform::Windows => Platform::Windows,
+            whoami::Platform::Linux => Platform::Linux,
+            whoami::Platform::MacOS => Platform::MacOs,
+            _ => unimplemented!()
+        }
+    }
+}
+
 pub trait ProcessHandler: Send + 'static {
     fn create_launch_process(
         &self,