feat: Provide basic API frame

1 files changed, 57 insertions, 0 deletions

diff --git a/crates/rocie-server/src/app.rs b/crates/rocie-server/src/app.rs
new file mode 100644
index 0000000..ab8f764
--- /dev/null
+++ b/crates/rocie-server/src/app.rs
@@ -0,0 +1,57 @@
+use std::{env, path::PathBuf};
+
+use sqlx::{SqlitePool, sqlite::SqliteConnectOptions};
+
+use crate::storage::migrate::migrate_db;
+
+#[derive(Clone)]
+pub(crate) struct App {
+    pub(crate) db: SqlitePool,
+}
+
+impl App {
+    pub(crate) async fn new() -> Result<Self, app_create::Error> {
+        let db_path: PathBuf = PathBuf::from(env::var("ROCIE_DB_PATH")?);
+
+        let db = {
+            let options = SqliteConnectOptions::new()
+                .filename(&db_path)
+                .optimize_on_close(true, None)
+                .create_if_missing(true);
+
+            SqlitePool::connect_with(options).await.map_err(|err| {
+                app_create::Error::DbConnectionFailed {
+                    inner: err,
+                    db_path,
+                }
+            })?
+        };
+
+        let me = Self { db };
+
+        migrate_db(&me).await?;
+
+        Ok(me)
+    }
+}
+
+pub(crate) mod app_create {
+    use std::{env, path::PathBuf};
+
+    use crate::storage::migrate::migrate_db;
+
+    #[derive(thiserror::Error, Debug)]
+    pub(crate) enum Error {
+        #[error("The `ROCIE_DB_PATH` variable is not accessible: {0}")]
+        MissingDbVariable(#[from] env::VarError),
+
+        #[error("Failed to connect to the sqlite database at `{db_path}`, because: {inner}")]
+        DbConnectionFailed {
+            inner: sqlx::Error,
+            db_path: PathBuf,
+        },
+
+        #[error("Failed to migrate db to the current version")]
+        MigrateDb(#[from] migrate_db::Error),
+    }
+}