feat: with sled db

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/churn-server/src/main.rs

@@ -1,8 +1,10 @@
 mod agent;
+mod db;
 mod event;
 mod lease;
 
 use std::net::SocketAddr;
+use std::path::PathBuf;
 
 use agent::AgentService;
 use anyhow::Error;
@@ -11,18 +13,37 @@ use axum::http::StatusCode;
 use axum::response::{IntoResponse, Response};
 use axum::routing::{get, post};
 use axum::{Json, Router};
-use churn_domain::{LeaseResp, ServerEnrollReq, ServerMonitorResp};
-use clap::{Parser, Subcommand};
-use event::{EventService, LogEvent};
+use churn_domain::{LeaseResp, LogEvent, ServerEnrollReq, ServerMonitorResp};
+use clap::{Args, Parser, Subcommand, ValueEnum};
+use event::EventService;
 use lease::LeaseService;
 use serde::{Deserialize, Serialize};
 use serde_json::json;
 
+use crate::db::Db;
+
 #[derive(Parser)]
 #[command(author, version, about, long_about = None, subcommand_required = true)]
 struct Command {
     #[command(subcommand)]
     command: Option<Commands>,
+
+    #[clap(flatten)]
+    global: GlobalArgs,
+}
+
+#[derive(Args)]
+struct GlobalArgs {
+    #[arg(env = "CHURN_DATABASE", long, default_value = "sled")]
+    database: DatabaseType,
+
+    #[arg(env = "CHURN_SLED_PATH", long, default_value = "churn-server.sled")]
+    sled_path: PathBuf,
+}
+
+#[derive(ValueEnum, Clone)]
+enum DatabaseType {
+    Sled,
 }
 
 #[derive(Subcommand)]
@@ -55,6 +76,9 @@ async fn main() -> anyhow::Result<()> {
     match cli.command {
         Some(Commands::Serve { host }) => {
             tracing::info!("Starting churn server");
+            let db = match cli.global.database {
+                DatabaseType::Sled => Db::new_sled(&cli.global.sled_path),
+            };
 
             let app = Router::new()
                 .route("/ping", get(ping))
@@ -70,7 +94,7 @@ async fn main() -> anyhow::Result<()> {
                 .with_state(AppState {
                     agent: AgentService::default(),
                     leases: LeaseService::default(),
-                    events: EventService::default(),
+                    events: EventService::new(db),
                 });
 
             tracing::info!("churn server listening on {}", host);