feat(core): added background picture downloading

Cargo.lock

@@ -57,12 +57,15 @@ version = "2.0.0-dev"
 dependencies = [
  "anime-launcher-sdk",
  "anyhow",
+ "cached",
  "fluent-templates",
  "glib-build-tools",
  "gtk4",
  "lazy_static",
  "libadwaita",
+ "md5",
  "relm4",
+ "serde_json",
  "tracing",
  "tracing-subscriber",
  "unic-langid",

Cargo.toml

@@ -30,3 +30,6 @@ unic-langid = "0.9"
 
 lazy_static = "1.4.0"
 anyhow = "1.0"
+cached = { version = "0.42", features = ["proc_macro"] }
+serde_json = "1"
+md5 = "0.7"

assets/locales/en/errors.ftl

@@ -5,6 +5,7 @@ debug-file-opening-error = Failed to open debug file
 
 game-launching-failed = Failed to launch game
 
+background-downloading-failed = Failed to download background picture
 config-flush-error = Failed to flush config
 wine-prefix-update-failed = Failed to update wine prefix
 dxvk-install-failed = Failed to install DXVK

assets/locales/en/main.ftl

@@ -6,6 +6,7 @@ close = Close
 save = Save
 
 
+downloading-background-picture = Downloading background picture
 loading-game-version = Loading game version
 loading-patch-status = Loading patch status
 loading-launcher-state = Loading launcher state

assets/locales/ru/errors.ftl

@@ -5,6 +5,7 @@ debug-file-opening-error = Не удалось открыть файл отла
 
 game-launching-failed = Не удалось запустить игру
 
+background-downloading-failed = Не удалось загрузить фоновое изображение
 config-flush-error = Ошибка сохранения настроек
 wine-prefix-update-failed = Ошибка обновления префикса Wine
 dxvk-install-failed = Ошибка установки DXVK

assets/locales/ru/main.ftl

@@ -6,6 +6,7 @@ close = Закрыть
 save = Сохранить
 
 
+downloading-background-picture = Загрузка фонового изображения
 loading-game-version = Загрузка версии игры
 loading-patch-status = Загрузка статуса патча
 loading-launcher-state = Загрузка статуса лаунчера

src/background.rs

@@ -0,0 +1,77 @@
+use anime_launcher_sdk::anime_game_core::installer::downloader::Downloader;
+use anime_launcher_sdk::anime_game_core::curl::fetch;
+
+#[derive(Debug, Clone)]
+pub struct Background {
+    pub uri: String,
+    pub hash: String
+}
+
+pub fn get_uri() -> String {
+    let mut lang;
+
+    unsafe {
+        lang = crate::i18n::LANG.language.as_str().to_string();
+
+        if let Some(region) = crate::i18n::LANG.region {
+            lang += "-";
+            lang += &region.as_str().to_ascii_lowercase();
+        }
+    }
+
+    let uri = concat!("https://sdk-os-static.", "ho", "yo", "verse", ".com/hk4e_global/mdk/launcher/api/content?filter_adv=true&key=gcStgarh&launcher_id=10&language=");
+
+    uri.to_owned() + &lang
+}
+
+#[cached::proc_macro::cached(result)]
+pub fn get_background_info() -> anyhow::Result<Background> {
+    let json = serde_json::from_slice::<serde_json::Value>(&fetch(get_uri(), None)?.get_body()?)?;
+
+    let uri = match json["data"]["adv"]["background"].as_str() {
+        Some(uri) => uri.to_owned(),
+        None => anyhow::bail!("Failed to get background picture uri")
+    };
+
+    // This API field contains wrong md5 hash, but file's name
+    // from the uri above actually contains correct one, so
+    // I parse and use it few lines below
+
+    /*let hash = match json["data"]["adv"]["bg_checksum"].as_str() {
+        Some(uri) => uri.to_owned(),
+        None => anyhow::bail!("Failed to get background picture checksum")
+    };*/
+
+    let hash = uri.split('/').last().unwrap_or_default().split('_').next().unwrap_or_default().to_owned();
+
+    Ok(Background {
+        uri,
+        hash
+    })
+}
+
+pub fn download_background() -> anyhow::Result<()> {
+    tracing::debug!("Downloading background picture");
+
+    let info = get_background_info()?;
+
+    if crate::BACKGROUND_FILE.exists() {
+        let hash = md5::compute(std::fs::read(crate::BACKGROUND_FILE.as_path())?);
+
+        if format!("{:x}", hash).to_lowercase() == info.hash {
+            tracing::debug!("Background picture is already downloaded. Skipping");
+
+            return Ok(());
+        }
+    }
+
+    let mut downloader = Downloader::new(info.uri)?;
+
+    if let Err(err) = downloader.download_to(crate::BACKGROUND_FILE.as_path(), |_, _| {}) {
+        let err: std::io::Error = err.into();
+
+        anyhow::bail!(err);
+    }
+
+    Ok(())
+}

src/main.rs

@@ -11,6 +11,7 @@ use std::path::PathBuf;
 
 pub mod i18n;
 pub mod ui;
+pub mod background;
 
 mod prettify_bytes;
 
@@ -30,14 +31,17 @@ pub fn is_ready() -> bool {
 }
 
 lazy_static::lazy_static! {
-    /// Path to `debug.log` file. Standard is `$HOME/.local/share/anime-game-launcher/debug.log`
-    pub static ref DEBUG_FILE: std::path::PathBuf = anime_launcher_sdk::consts::launcher_dir().unwrap_or_default().join("debug.log");
-
     /// Config loaded on the app's start. Use `config::get()` to get up to date config instead.
     /// This one is used to prepare some launcher UI components on start
     pub static ref CONFIG: config::Config = config::get().expect("Failed to load config");
 
     pub static ref GAME: Game = Game::new(&CONFIG.game.path);
+
+    /// Path to `debug.log` file. Standard is `$HOME/.local/share/anime-game-launcher/debug.log`
+    pub static ref DEBUG_FILE: PathBuf = anime_launcher_sdk::consts::launcher_dir().unwrap_or_default().join("debug.log");
+
+    /// Path to `background` file. Standard is `$HOME/.local/share/anime-game-launcher/background`
+    pub static ref BACKGROUND_FILE: PathBuf = anime_launcher_sdk::consts::launcher_dir().unwrap_or_default().join("background");
 }
 
 fn main() {
@@ -66,7 +70,7 @@ fn main() {
 
     let debug_log = tracing_subscriber::fmt::layer()
         .pretty()
-        // .with_ansi(false) // sadly doesn't work with pretty style
+        .with_ansi(false)
         .with_writer(std::sync::Arc::new(file))
         .with_filter(filter_fn(|metadata| {
             !metadata.target().contains("rustls")
@@ -77,7 +81,7 @@ fn main() {
         .with(debug_log)
         .init();
 
-    tracing::info!("Starting application");
+    tracing::info!("Starting application ({APP_VERSION})");
 
     adw::init().expect("Libadwaita initialization failed");
 
@@ -106,13 +110,11 @@ fn main() {
         }}
 
         window.classic-style {{
-            background: url(\"file://{}/background\");
+            background: url(\"file://{}\");
             background-repeat: no-repeat;
             background-size: cover;
         }}
-    ",
+    ", BACKGROUND_FILE.to_string_lossy()));
-        CONFIG.launcher.temp.as_ref().unwrap_or(&PathBuf::from("/tmp")).to_string_lossy()
-    ));
 
     // Run the app
     app.run::<ui::main::App>(());

src/ui/main.rs

@@ -401,10 +401,27 @@ impl SimpleComponent for App {
 
         tracing::info!("Main window initialized");
 
+        let download_picture = model.style == LauncherStyle::Classic;
+
         // Initialize some heavy tasks
         std::thread::spawn(move || {
             tracing::info!("Initializing heavy tasks");
 
+            // Download background picture if needed
+
+            if download_picture {
+                sender.input(AppMsg::UpdateLoadingStatus(Some(Some(tr("downloading-background-picture")))));
+
+                if let Err(err) = crate::background::download_background() {
+                    tracing::error!("Failed to download background picture");
+
+                    sender.input(AppMsg::Toast {
+                        title: tr("background-downloading-failed"),
+                        description: Some(err.to_string())
+                    });
+                }
+            }
+
             // Update initial game version status
 
             sender.input(AppMsg::UpdateLoadingStatus(Some(Some(tr("loading-game-version")))));