feat: with basic server

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

crates/hyperlog-server/src/state.rs

@@ -0,0 +1,37 @@
+use std::{ops::Deref, sync::Arc};
+
+use anyhow::Context;
+use sqlx::{Pool, Postgres};
+
+#[derive(Clone)]
+pub struct SharedState(pub Arc<State>);
+
+impl Deref for SharedState {
+    type Target = Arc<State>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+pub struct State {
+    pub _db: Pool<Postgres>,
+}
+
+impl State {
+    pub async fn new() -> anyhow::Result<Self> {
+        let db = sqlx::PgPool::connect(
+            &std::env::var("DATABASE_URL").context("DATABASE_URL is not set")?,
+        )
+        .await?;
+
+        sqlx::migrate!("migrations/crdb")
+            .set_locking(false)
+            .run(&db)
+            .await?;
+
+        let _ = sqlx::query("SELECT 1;").fetch_one(&db).await?;
+
+        Ok(Self { _db: db })
+    }
+}