rewire bootstrap with SQLite, HTTP API, and real polling

bootstrap: SQLite config, HTTP API on :3000, TCP on :2699, poll loops.
http-api: added serve() so bootstrap doesn't depend on axum directly.
polling: reads data sources from config, polls via http-json adapter,
pushes changed widgets to connected clients.

configure via API, e.g.:
  curl -X POST localhost:3000/api/data-sources -H 'Content-Type: application/json' -d '{...}'
  curl -X PUT localhost:3000/api/layout -H 'Content-Type: application/json' -d '{...}'

crates/bootstrap/Cargo.toml

@@ -5,8 +5,10 @@ edition = "2024"
 
 [dependencies]
 domain.workspace = true
-protocol.workspace = true
 application.workspace = true
-config-memory.workspace = true
+config-sqlite.workspace = true
 tcp-server.workspace = true
+http-api.workspace = true
+http-json.workspace = true
 tokio.workspace = true
+anyhow.workspace = true

crates/bootstrap/src/main.rs

@@ -1,90 +1,40 @@
+mod polling;
+
 use std::sync::Arc;
-use std::time::Duration;
-use domain::{
-    ConfigRepository, BroadcastPort,
-    WidgetConfig, DisplayHint, KeyMapping,
-    Layout, LayoutNode, ContainerNode, LayoutChild, Direction, Sizing,
-    Value, WidgetState,
-};
-use application::{ConfigService, DataProjection};
-use config_memory::MemoryConfigStore;
+use anyhow::Result;
+use application::DataProjection;
+use config_sqlite::SqliteConfigStore;
 use tcp_server::{TcpBroadcaster, TcpEventBus, run_tcp_server};
+use http_api::AppState;
+use tokio::sync::Mutex;
+
+const DB_PATH: &str = "sqlite:kframe.db?mode=rwc";
+const TCP_ADDR: &str = "0.0.0.0:2699";
+const HTTP_ADDR: &str = "0.0.0.0:3000";
 
 #[tokio::main]
-async fn main() {
-    let config_store = Arc::new(MemoryConfigStore::new());
+async fn main() -> Result<()> {
+    let config_store = Arc::new(SqliteConfigStore::new(DB_PATH).await?);
     let event_bus = Arc::new(TcpEventBus::new(64));
     let broadcaster = Arc::new(TcpBroadcaster::new(64));
+    let projection = Arc::new(Mutex::new(DataProjection::new()));
 
-    let service = ConfigService::new(config_store.as_ref(), event_bus.as_ref());
-
-    service.create_widget(WidgetConfig::new(
-        1, "weather".into(), DisplayHint::IconValue, 1,
-        vec![
-            KeyMapping { source_path: "$.temperature".into(), target_key: "value".into() },
-            KeyMapping { source_path: "$.icon".into(), target_key: "icon".into() },
-        ],
-    )).await.unwrap();
-
-    service.create_widget(WidgetConfig::new(
-        2, "portfolio".into(), DisplayHint::KeyValue, 2,
-        vec![
-            KeyMapping { source_path: "$.amount".into(), target_key: "value".into() },
-        ],
-    )).await.unwrap();
-
-    let layout = Layout {
-        root: LayoutNode::Container(ContainerNode {
-            direction: Direction::Row,
-            gap: 4,
-            padding: 2,
-            children: vec![
-                LayoutChild { sizing: Sizing::Flex(1), node: LayoutNode::Leaf(1) },
-                LayoutChild { sizing: Sizing::Flex(1), node: LayoutNode::Leaf(2) },
-            ],
-        }),
-    };
-    service.update_layout(layout).await.unwrap();
-
-    let bc = broadcaster.clone();
+    let tcp_bc = broadcaster.clone();
     tokio::spawn(async move {
-        run_tcp_server("0.0.0.0:2699", bc).await.unwrap();
+        run_tcp_server(TCP_ADDR, tcp_bc).await.unwrap();
     });
+    println!("TCP server on {TCP_ADDR}");
 
-    println!("Server running on :2699");
-    println!("Sending fake data every 3 seconds...");
+    let http_state = AppState {
+        config: config_store.clone(),
+        events: event_bus.clone(),
+    };
+    tokio::spawn(async move {
+        http_api::serve(HTTP_ADDR, http_state).await.unwrap();
+    });
+    println!("HTTP API on {HTTP_ADDR}");
 
-    let mut projection = DataProjection::new();
-    let mut counter = 0u32;
+    println!("K-Frame server running");
 
-    loop {
-        tokio::time::sleep(Duration::from_secs(3)).await;
-        counter += 1;
-
-        let widgets = config_store.list_widgets().await.unwrap();
-        let layout = config_store.get_layout().await.unwrap();
-
-        let weather_data = Value::Object(std::collections::BTreeMap::from([
-            ("temperature".into(), Value::String(format!("{}.{}°C", 5 + counter % 10, counter % 10))),
-            ("icon".into(), Value::String("sunny".into())),
-        ]));
-
-        let portfolio_data = Value::Object(std::collections::BTreeMap::from([
-            ("amount".into(), Value::String(format!("{}.{} PLN", 100 + counter, counter % 100))),
-        ]));
-
-        let changed_weather = projection.apply_poll_result(1, &weather_data, &widgets);
-        let changed_portfolio = projection.apply_poll_result(2, &portfolio_data, &widgets);
-
-        let mut all_changed: Vec<(u16, WidgetState)> = Vec::new();
-        all_changed.extend(changed_weather);
-        all_changed.extend(changed_portfolio);
-
-        if !all_changed.is_empty() {
-            if let Some(l) = &layout {
-                broadcaster.push_screen_update(l, &all_changed).await.unwrap();
-            }
-            println!("Pushed {} widget updates (tick {counter})", all_changed.len());
-        }
-    }
+    polling::run(config_store, broadcaster, projection).await
 }

crates/bootstrap/src/polling.rs

@@ -0,0 +1,76 @@
+use std::sync::Arc;
+use std::time::Duration;
+use anyhow::Result;
+use domain::{
+    ConfigRepository, BroadcastPort, DataSourcePort, DataSourceType,
+    DataSource, Value, WidgetState,
+};
+use application::DataProjection;
+use http_json::HttpJsonAdapter;
+use tcp_server::TcpBroadcaster;
+use config_sqlite::SqliteConfigStore;
+use tokio::sync::Mutex;
+
+const POLL_CHECK_INTERVAL: Duration = Duration::from_secs(5);
+
+pub async fn run(
+    config: Arc<SqliteConfigStore>,
+    broadcaster: Arc<TcpBroadcaster>,
+    projection: Arc<Mutex<DataProjection>>,
+) -> Result<()> {
+    let http_adapter = HttpJsonAdapter::new();
+
+    loop {
+        tokio::time::sleep(POLL_CHECK_INTERVAL).await;
+
+        let sources = config.list_data_sources().await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let widgets = config.list_widgets().await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+        let layout = config.get_layout().await
+            .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+        if sources.is_empty() || widgets.is_empty() {
+            continue;
+        }
+
+        let mut all_changed: Vec<(u16, WidgetState)> = Vec::new();
+
+        for source in &sources {
+            let result = match poll_source(&http_adapter, source).await {
+                Ok(v) => v,
+                Err(e) => {
+                    eprintln!("poll error for '{}': {e}", source.name);
+                    continue;
+                }
+            };
+
+            let mut proj = projection.lock().await;
+            let changed = proj.apply_poll_result(source.id, &result, &widgets);
+            all_changed.extend(changed);
+        }
+
+        if !all_changed.is_empty() {
+            if let Some(l) = &layout {
+                broadcaster.push_screen_update(l, &all_changed).await
+                    .map_err(|e| anyhow::anyhow!("{e}"))?;
+            }
+            println!("pushed {} widget updates", all_changed.len());
+        }
+    }
+}
+
+async fn poll_source(
+    http_adapter: &HttpJsonAdapter,
+    source: &DataSource,
+) -> Result<Value> {
+    match source.source_type {
+        DataSourceType::HttpJson | DataSourceType::Weather => {
+            http_adapter.poll(source).await
+                .map_err(|e| anyhow::anyhow!("{e}"))
+        }
+        _ => {
+            Err(anyhow::anyhow!("unsupported source type: {:?}", source.source_type))
+        }
+    }
+}