Add a desktop app with tauri

desktop/src-tauri/.gitignore

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+# Generated by Cargo
+# will have compiled files and executables
+/target/
+

desktop/src-tauri/Cargo.toml

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+[package]
+name = "rqbit"
+version = "0.0.0"
+description = "A Tauri App"
+authors = ["you"]
+license = ""
+repository = ""
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[build-dependencies]
+tauri-build = { version = "1.5", features = [] }
+
+[dependencies]
+tauri = { version = "1.5", features = ["shell-open"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+librqbit = {path = "../../crates/librqbit", features = ["webui"] }
+tokio = { version = "1.34.0", features = ["rt-multi-thread"] }
+anyhow = "1.0.75"
+base64 = "0.21.5"
+http = "1.0.0"
+directories = "5.0.1"
+tracing-subscriber = "0.3.18"
+
+[features]
+# this feature is used for production builds or when `devPath` points to the filesystem
+# DO NOT REMOVE!!
+custom-protocol = ["tauri/custom-protocol"]
+
+[workspace]

desktop/src-tauri/build.rs

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+fn main() {
+    tauri_build::build()
+}

desktop/src-tauri/src/main.rs

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+// Prevents additional console window on Windows in release, DO NOT REMOVE!!
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+use http::StatusCode;
+use librqbit::{
+    api::{
+        Api, ApiAddTorrentResponse, EmptyJsonResponse, TorrentDetailsResponse, TorrentListResponse,
+    },
+    api_error::ApiError,
+    session::AddTorrentOptions,
+    torrent_state::stats::TorrentStats,
+};
+
+struct State {
+    api: Api,
+}
+
+#[tauri::command]
+fn torrents_list(state: tauri::State<State>) -> TorrentListResponse {
+    state.api.api_torrent_list()
+}
+
+#[tauri::command]
+async fn torrent_create_from_url(
+    state: tauri::State<'_, State>,
+    url: String,
+    opts: Option<AddTorrentOptions>,
+) -> Result<ApiAddTorrentResponse, ApiError> {
+    state
+        .api
+        .api_add_torrent(librqbit::session::AddTorrent::Url(url.into()), opts)
+        .await
+}
+
+#[tauri::command]
+async fn torrent_create_from_base64_file(
+    state: tauri::State<'_, State>,
+    contents: String,
+    opts: Option<AddTorrentOptions>,
+) -> Result<ApiAddTorrentResponse, ApiError> {
+    use base64::{engine::general_purpose, Engine as _};
+    let bytes = general_purpose::STANDARD_NO_PAD
+        .decode(&contents)
+        .map_err(|_| ApiError::new_from_string(StatusCode::BAD_REQUEST, "invalid base64".into()))?;
+    state
+        .api
+        .api_add_torrent(
+            librqbit::session::AddTorrent::TorrentFileBytes(bytes.into()),
+            opts,
+        )
+        .await
+}
+
+#[tauri::command]
+async fn torrent_details(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<TorrentDetailsResponse, ApiError> {
+    state.api.api_torrent_details(id)
+}
+
+#[tauri::command]
+async fn torrent_stats(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<TorrentStats, ApiError> {
+    state.api.api_stats_v1(id)
+}
+
+#[tauri::command]
+async fn torrent_action_delete(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<EmptyJsonResponse, ApiError> {
+    state.api.api_torrent_action_delete(id)
+}
+
+#[tauri::command]
+async fn torrent_action_pause(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<EmptyJsonResponse, ApiError> {
+    state.api.api_torrent_action_pause(id)
+}
+
+#[tauri::command]
+async fn torrent_action_forget(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<EmptyJsonResponse, ApiError> {
+    state.api.api_torrent_action_forget(id)
+}
+
+#[tauri::command]
+async fn torrent_action_start(
+    state: tauri::State<'_, State>,
+    id: usize,
+) -> Result<EmptyJsonResponse, ApiError> {
+    state.api.api_torrent_action_start(id)
+}
+
+async fn start_session() {
+    tauri::async_runtime::set(tokio::runtime::Handle::current());
+
+    let download_folder = directories::UserDirs::new()
+        .expect("directories::UserDirs::new()")
+        .download_dir()
+        .expect("download_dir()")
+        .to_path_buf();
+
+    let s = librqbit::session::Session::new_with_opts(
+        download_folder,
+        Default::default(),
+        librqbit::session::SessionOptions {
+            disable_dht: false,
+            disable_dht_persistence: false,
+            persistence: true,
+            ..Default::default()
+        },
+    )
+    .await
+    .expect("couldn't set up librqbit session");
+
+    let api = Api::new(s, None);
+
+    tauri::Builder::default()
+        .manage(State { api })
+        .invoke_handler(tauri::generate_handler![
+            torrents_list,
+            torrent_details,
+            torrent_stats,
+            torrent_create_from_url,
+            torrent_action_delete,
+            torrent_action_pause,
+            torrent_action_forget,
+            torrent_action_start,
+            torrent_create_from_base64_file,
+        ])
+        .run(tauri::generate_context!())
+        .expect("error while running tauri application");
+}
+
+fn main() {
+    tracing_subscriber::fmt::init();
+    tokio::runtime::Builder::new_multi_thread()
+        .enable_all()
+        .build()
+        .expect("couldn't set up tokio runtime")
+        .block_on(start_session())
+}

desktop/src-tauri/tauri.conf.json

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+{
+  "build": {
+    "beforeDevCommand": "npm run dev",
+    "beforeBuildCommand": "npm run build",
+    "devPath": "http://localhost:1420",
+    "distDir": "../dist"
+  },
+  "package": {
+    "productName": "rqbit",
+    "version": "0.0.0"
+  },
+  "tauri": {
+    "allowlist": {
+      "all": false,
+      "shell": {
+        "all": false,
+        "open": true
+      }
+    },
+    "bundle": {
+      "active": true,
+      "targets": "all",
+      "identifier": "com.rqbit.desktop",
+      "icon": [
+        "icons/32x32.png",
+        "icons/128x128.png",
+        "icons/128x128@2x.png",
+        "icons/icon.icns",
+        "icons/icon.ico"
+      ]
+    },
+    "security": {
+      "csp": null
+    },
+    "windows": [
+      {
+        "fullscreen": false,
+        "resizable": true,
+        "title": "rqbit",
+        "width": 800,
+        "height": 600
+      }
+    ]
+  }
+}