chore: setup project structure

Cargo.toml

@@ -11,6 +11,7 @@ publish = false
 [workspace.dependencies]
 # GPUI
 gpui = { git = "https://github.com/zed-industries/zed" }
+gpui-component = { git = "https://github.com/longbridge/gpui-component" }
 gpui_tokio = { git = "https://github.com/zed-industries/zed" }
 reqwest_client = { git = "https://github.com/zed-industries/zed" }
 

crates/assets/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "assets"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+gpui.workspace = true
+anyhow.workspace = true
+log.workspace = true
+rust-embed.workspace = true

crates/assets/src/lib.rs

@@ -0,0 +1,59 @@
+use anyhow::Context;
+use gpui::{App, AssetSource, Result, SharedString};
+use rust_embed::RustEmbed;
+
+#[derive(RustEmbed)]
+#[folder = "../../assets"]
+#[include = "fonts/**/*"]
+#[include = "brand/**/*"]
+#[include = "icons/**/*"]
+#[exclude = "*.DS_Store"]
+pub struct Assets;
+
+impl AssetSource for Assets {
+    fn load(&self, path: &str) -> Result<Option<std::borrow::Cow<'static, [u8]>>> {
+        Self::get(path)
+            .map(|f| Some(f.data))
+            .with_context(|| format!("loading asset at path {path:?}"))
+    }
+
+    fn list(&self, path: &str) -> Result<Vec<SharedString>> {
+        Ok(Self::iter()
+            .filter_map(|p| {
+                if p.starts_with(path) {
+                    Some(p.into())
+                } else {
+                    None
+                }
+            })
+            .collect())
+    }
+}
+
+impl Assets {
+    /// Populate the [`TextSystem`] of the given [`AppContext`] with all `.ttf` fonts in the `fonts` directory.
+    pub fn load_fonts(&self, cx: &App) -> anyhow::Result<()> {
+        let font_paths = self.list("fonts")?;
+        let mut embedded_fonts = Vec::new();
+        for font_path in font_paths {
+            if font_path.ends_with(".ttf") {
+                let font_bytes = cx
+                    .asset_source()
+                    .load(&font_path)?
+                    .expect("Assets should never return None");
+                embedded_fonts.push(font_bytes);
+            }
+        }
+
+        cx.text_system().add_fonts(embedded_fonts)
+    }
+
+    pub fn load_test_fonts(&self, cx: &App) {
+        cx.text_system()
+            .add_fonts(vec![self
+                .load("fonts/plex-mono/ZedPlexMono-Regular.ttf")
+                .unwrap()
+                .unwrap()])
+            .unwrap()
+    }
+}

crates/common/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "common"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+gpui.workspace = true
+nostr-sdk.workspace = true
+
+anyhow.workspace = true
+itertools.workspace = true
+chrono.workspace = true
+smallvec.workspace = true
+smol.workspace = true
+futures.workspace = true
+reqwest.workspace = true
+log.workspace = true
+
+dirs = "5.0"
+nostr = { git = "https://github.com/rust-nostr/nostr" }

crates/common/src/constants.rs

@@ -0,0 +1,21 @@
+pub const CLIENT_NAME: &str = "Lume";
+pub const APP_ID: &str = "su.reya.lume";
+
+/// Bootstrap Relays.
+pub const BOOTSTRAP_RELAYS: [&str; 5] = [
+    "wss://relay.damus.io",
+    "wss://relay.primal.net",
+    "wss://relay.nos.social",
+    "wss://user.kindpag.es",
+    "wss://purplepag.es",
+];
+
+/// Search Relays.
+pub const SEARCH_RELAYS: [&str; 3] = [
+    "wss://relay.nostr.band",
+    "wss://search.nos.today",
+    "wss://relay.noswhere.com",
+];
+
+/// Default relay for Nostr Connect
+pub const NOSTR_CONNECT_RELAY: &str = "wss://relay.nsec.app";

crates/common/src/lib.rs

@@ -0,0 +1,5 @@
+pub use constants::*;
+pub use paths::*;
+
+mod constants;
+mod paths;

crates/common/src/paths.rs

@@ -0,0 +1,64 @@
+use std::path::PathBuf;
+use std::sync::OnceLock;
+
+/// Returns the path to the user's home directory.
+pub fn home_dir() -> &'static PathBuf {
+    static HOME_DIR: OnceLock<PathBuf> = OnceLock::new();
+    HOME_DIR.get_or_init(|| dirs::home_dir().expect("failed to determine home directory"))
+}
+
+/// Returns the path to the configuration directory used by Lume.
+pub fn config_dir() -> &'static PathBuf {
+    static CONFIG_DIR: OnceLock<PathBuf> = OnceLock::new();
+    CONFIG_DIR.get_or_init(|| {
+        if cfg!(target_os = "windows") {
+            return dirs::config_dir()
+                .expect("failed to determine RoamingAppData directory")
+                .join("Lume");
+        }
+
+        if cfg!(any(target_os = "linux", target_os = "freebsd")) {
+            return if let Ok(flatpak_xdg_config) = std::env::var("FLATPAK_XDG_CONFIG_HOME") {
+                flatpak_xdg_config.into()
+            } else {
+                dirs::config_dir().expect("failed to determine XDG_CONFIG_HOME directory")
+            }
+            .join("lume");
+        }
+
+        home_dir().join(".config").join("lume")
+    })
+}
+
+/// Returns the path to the support directory used by Lume.
+pub fn support_dir() -> &'static PathBuf {
+    static SUPPORT_DIR: OnceLock<PathBuf> = OnceLock::new();
+    SUPPORT_DIR.get_or_init(|| {
+        if cfg!(target_os = "macos") {
+            return home_dir().join("Library/Application Support/Lume");
+        }
+
+        if cfg!(any(target_os = "linux", target_os = "freebsd")) {
+            return if let Ok(flatpak_xdg_data) = std::env::var("FLATPAK_XDG_DATA_HOME") {
+                flatpak_xdg_data.into()
+            } else {
+                dirs::data_local_dir().expect("failed to determine XDG_DATA_HOME directory")
+            }
+            .join("lume");
+        }
+
+        if cfg!(target_os = "windows") {
+            return dirs::data_local_dir()
+                .expect("failed to determine LocalAppData directory")
+                .join("lume");
+        }
+
+        config_dir().clone()
+    })
+}
+
+/// Returns the path to the `nostr` file.
+pub fn nostr_file() -> &'static PathBuf {
+    static NOSTR_FILE: OnceLock<PathBuf> = OnceLock::new();
+    NOSTR_FILE.get_or_init(|| support_dir().join("nostr-db"))
+}

crates/lume/Cargo.toml

@@ -9,7 +9,12 @@ name = "lume"
 path = "src/main.rs"
 
 [dependencies]
+common = { path = "../common" }
+assets = { path = "../assets" }
+state = { path = "../state" }
+
 gpui.workspace = true
+gpui-component.workspace = true
 gpui_tokio.workspace = true
 reqwest_client.workspace = true
 

crates/lume/src/actions.rs

@@ -0,0 +1,34 @@
+use std::sync::Mutex;
+
+use gpui::{actions, App};
+
+actions!(coop, [Quit]);
+
+pub fn load_embedded_fonts(cx: &App) {
+    let asset_source = cx.asset_source();
+    let font_paths = asset_source.list("fonts").unwrap();
+    let embedded_fonts = Mutex::new(Vec::new());
+    let executor = cx.background_executor();
+
+    executor.block(executor.scoped(|scope| {
+        for font_path in &font_paths {
+            if !font_path.ends_with(".ttf") {
+                continue;
+            }
+
+            scope.spawn(async {
+                let font_bytes = asset_source.load(font_path).unwrap().unwrap();
+                embedded_fonts.lock().unwrap().push(font_bytes);
+            });
+        }
+    }));
+
+    cx.text_system()
+        .add_fonts(embedded_fonts.into_inner().unwrap())
+        .unwrap();
+}
+
+pub fn quit(_: &Quit, cx: &mut App) {
+    log::info!("Gracefully quitting the application . . .");
+    cx.quit();
+}

crates/lume/src/main.rs

@@ -1,3 +1,102 @@
+use std::sync::Arc;
+
+use assets::Assets;
+use common::{APP_ID, CLIENT_NAME};
+use gpui::{
+    div, point, px, size, AppContext, Application, Bounds, Context, IntoElement, KeyBinding, Menu,
+    MenuItem, ParentElement, Render, SharedString, Styled, TitlebarOptions, Window,
+    WindowBackgroundAppearance, WindowBounds, WindowDecorations, WindowKind, WindowOptions,
+};
+use gpui_component::button::{Button, ButtonVariants};
+use gpui_component::{Root, StyledExt};
+
+use crate::actions::{load_embedded_fonts, quit, Quit};
+
+mod actions;
+
 fn main() {
-    println!("Hello, world!");
+    // Initialize logging
+    tracing_subscriber::fmt::init();
+
+    // Initialize the Application
+    let app = Application::new()
+        .with_assets(Assets)
+        .with_http_client(Arc::new(reqwest_client::ReqwestClient::new()));
+
+    // Run application
+    app.run(move |cx| {
+        // Load embedded fonts in assets/fonts
+        load_embedded_fonts(cx);
+
+        // Register the `quit` function
+        cx.on_action(quit);
+
+        // Register the `quit` function with CMD+Q (macOS)
+        #[cfg(target_os = "macos")]
+        cx.bind_keys([KeyBinding::new("cmd-q", Quit, None)]);
+
+        // Register the `quit` function with Super+Q (others)
+        #[cfg(not(target_os = "macos"))]
+        cx.bind_keys([KeyBinding::new("super-q", Quit, None)]);
+
+        // Set menu items
+        cx.set_menus(vec![Menu {
+            name: "Lume".into(),
+            items: vec![MenuItem::action("Quit", Quit)],
+        }]);
+
+        // Set up the window bounds
+        let bounds = Bounds::centered(None, size(px(920.0), px(700.0)), cx);
+
+        // Set up the window options
+        let opts = WindowOptions {
+            window_background: WindowBackgroundAppearance::Opaque,
+            window_decorations: Some(WindowDecorations::Client),
+            window_bounds: Some(WindowBounds::Windowed(bounds)),
+            kind: WindowKind::Normal,
+            app_id: Some(APP_ID.to_owned()),
+            titlebar: Some(TitlebarOptions {
+                title: Some(SharedString::new_static(CLIENT_NAME)),
+                traffic_light_position: Some(point(px(9.0), px(9.0))),
+                appears_transparent: true,
+            }),
+            ..Default::default()
+        };
+
+        // Open a window with default options
+        cx.open_window(opts, |window, cx| {
+            // Bring the app to the foreground
+            cx.activate(true);
+
+            // Initialize the tokio runtime
+            gpui_tokio::init(cx);
+
+            // Initialize components
+            gpui_component::init(cx);
+
+            let view = cx.new(|_| HelloWorld);
+            cx.new(|cx| Root::new(view, window, cx))
+        })
+        .expect("Failed to open window. Please restart the application.");
+    })
+}
+
+pub struct HelloWorld;
+
+impl Render for HelloWorld {
+    fn render(&mut self, _: &mut Window, _: &mut Context<Self>) -> impl IntoElement {
+        div()
+            .v_flex()
+            .gap_2()
+            .size_full()
+            .items_center()
+            .justify_center()
+            .child("Hello, World!")
+            .child(
+                Button::new("ok")
+                    .primary()
+                    .label("Let's Go!")
+                    .on_click(|_, _, _| println!("Clicked!")),
+            )
+    }
 }

crates/state/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "state"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+common = { path = "../common" }
+
+nostr-sdk.workspace = true
+nostr-lmdb.workspace = true
+
+gpui.workspace = true
+smol.workspace = true
+smallvec.workspace = true
+log.workspace = true
+anyhow.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+
+rustls = "0.23.23"

crates/state/src/lib.rs

@@ -0,0 +1,111 @@
+use std::time::Duration;
+
+use common::{config_dir, BOOTSTRAP_RELAYS, SEARCH_RELAYS};
+use gpui::{App, AppContext, Context, Entity, Global, Task};
+use nostr_lmdb::NostrLmdb;
+use nostr_sdk::prelude::*;
+use smallvec::{smallvec, SmallVec};
+
+pub fn init(cx: &mut App) {
+    NostrRegistry::set_global(cx.new(NostrRegistry::new), cx);
+}
+
+struct GlobalNostrRegistry(Entity<NostrRegistry>);
+
+impl Global for GlobalNostrRegistry {}
+
+/// Nostr Registry
+#[derive(Debug)]
+pub struct NostrRegistry {
+    /// Nostr Client
+    client: Client,
+
+    /// Tasks for asynchronous operations
+    _tasks: SmallVec<[Task<()>; 1]>,
+}
+
+impl NostrRegistry {
+    /// Retrieve the global nostr state
+    pub fn global(cx: &App) -> Entity<Self> {
+        cx.global::<GlobalNostrRegistry>().0.clone()
+    }
+
+    /// Set the global nostr instance
+    fn set_global(state: Entity<Self>, cx: &mut App) {
+        cx.set_global(GlobalNostrRegistry(state));
+    }
+
+    /// Create a new nostr instance
+    fn new(cx: &mut Context<Self>) -> Self {
+        // rustls uses the `aws_lc_rs` provider by default
+        // This only errors if the default provider has already
+        // been installed. We can ignore this `Result`.
+        rustls::crypto::aws_lc_rs::default_provider()
+            .install_default()
+            .ok();
+
+        // Construct the nostr client options
+        let opts = ClientOptions::new()
+            .automatic_authentication(false)
+            .verify_subscriptions(false)
+            .sleep_when_idle(SleepWhenIdle::Enabled {
+                timeout: Duration::from_secs(600),
+            });
+
+        // Construct the lmdb
+        let lmdb = cx.background_executor().block(async move {
+            let path = config_dir().join("nostr");
+            NostrLmdb::open(path)
+                .await
+                .expect("Failed to initialize database")
+        });
+
+        // Construct the nostr client
+        let client = ClientBuilder::default().database(lmdb).opts(opts).build();
+
+        let mut tasks = smallvec![];
+
+        tasks.push(
+            // Establish connection to the bootstrap relays
+            //
+            // And handle notifications from the nostr relay pool channel
+            cx.background_spawn({
+                let client = client.clone();
+
+                async move {
+                    // Connect to the bootstrap relays
+                    Self::connect(&client).await;
+
+                    // Handle notifications from the relay pool
+                    // Self::handle_notifications(&client, &gossip, &tracker).await;
+                }
+            }),
+        );
+
+        Self {
+            client,
+            _tasks: tasks,
+        }
+    }
+
+    /// Establish connection to the bootstrap relays
+    async fn connect(client: &Client) {
+        // Get all bootstrapping relays
+        let mut urls = vec![];
+        urls.extend(BOOTSTRAP_RELAYS);
+        urls.extend(SEARCH_RELAYS);
+
+        // Add relay to the relay pool
+        for url in urls.into_iter() {
+            client.add_relay(url).await.ok();
+        }
+
+        // Connect to all added relays
+        client.connect().await;
+    }
+
+    /// Get the nostr client instance
+    pub fn client(&self) -> Client {
+        self.client.clone()
+    }
+}

rust-toolchain.toml

@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.88"
+channel = "1.90"
 profile = "minimal"
 components = ["rustfmt", "clippy"]
 targets = [