feat: implement simple web service, improve ServiceManager encapsulation

src/web/routes.rs

@@ -0,0 +1,76 @@
+//! Web API endpoints for Banner bot monitoring and metrics.
+
+use axum::{Router, extract::State, response::Json, routing::get};
+use serde_json::{Value, json};
+use std::sync::Arc;
+
+/// Shared application state for web server
+#[derive(Clone)]
+pub struct BannerState {
+    pub api: Arc<crate::banner::BannerApi>,
+    pub scraper: Arc<crate::banner::scraper::CourseScraper>,
+}
+
+/// Creates the web server router
+pub fn create_banner_router(state: BannerState) -> Router {
+    Router::new()
+        .route("/", get(root))
+        .route("/status", get(status))
+        .route("/metrics", get(metrics))
+        .with_state(state)
+}
+
+/// Root endpoint - shows API info
+async fn root() -> Json<Value> {
+    Json(json!({
+        "message": "Banner Discord Bot API",
+        "version": "0.1.0",
+        "endpoints": {
+            "health": "/health",
+            "status": "/status",
+            "metrics": "/metrics"
+        }
+    }))
+}
+
+/// Status endpoint showing bot and system status
+async fn status(State(_state): State<BannerState>) -> Json<Value> {
+    // For now, return basic status without accessing private fields
+    Json(json!({
+        "status": "operational",
+        "bot": {
+            "status": "running",
+            "uptime": "TODO: implement uptime tracking"
+        },
+        "cache": {
+            "status": "connected",
+            "courses": "TODO: implement course counting",
+            "subjects": "TODO: implement subject counting"
+        },
+        "banner_api": {
+            "status": "connected"
+        },
+        "timestamp": chrono::Utc::now().to_rfc3339()
+    }))
+}
+
+/// Metrics endpoint for monitoring
+async fn metrics(State(_state): State<BannerState>) -> Json<Value> {
+    // For now, return basic metrics structure
+    Json(json!({
+        "redis": {
+            "status": "connected",
+            "connected_clients": "TODO: implement client counting",
+            "used_memory": "TODO: implement memory tracking"
+        },
+        "cache": {
+            "courses": {
+                "count": "TODO: implement course counting"
+            },
+            "subjects": {
+                "count": "TODO: implement subject counting"
+            }
+        },
+        "timestamp": chrono::Utc::now().to_rfc3339()
+    }))
+}