init, scaffhold + fuse

crates/pdfs-core/src/error.rs

@@ -0,0 +1,27 @@
+//! Crate-wide error type.
+
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error("proton api: {0}")]
+    Proton(#[from] proton_sdk::ProtonError),
+
+    #[error("keyring: {0}")]
+    Keyring(#[from] keyring::Error),
+
+    #[error("serialization: {0}")]
+    Serde(#[from] serde_json::Error),
+
+    #[error("io: {0}")]
+    Io(#[from] std::io::Error),
+
+    /// No persisted session found — caller must run an interactive login.
+    #[error("not logged in (no saved session)")]
+    NotLoggedIn,
+
+    #[error("{0}")]
+    Other(String),
+}
+
+pub type Result<T> = std::result::Result<T, Error>;