Decouple core Yaak logic from Tauri (#354)

crates/yaak-grpc/src/error.rs

@@ -0,0 +1,51 @@
+use crate::manager::GrpcStreamError;
+use prost::DecodeError;
+use serde::{Serialize, Serializer};
+use serde_json::Error as SerdeJsonError;
+use std::io;
+use thiserror::Error;
+use tonic::Status;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error(transparent)]
+    TlsError(#[from] yaak_tls::error::Error),
+
+    #[error(transparent)]
+    TonicError(#[from] Status),
+
+    #[error("Prost reflect error: {0:?}")]
+    ProstReflectError(#[from] prost_reflect::DescriptorError),
+
+    #[error(transparent)]
+    DeserializerError(#[from] SerdeJsonError),
+
+    #[error(transparent)]
+    GrpcStreamError(#[from] GrpcStreamError),
+
+    #[error(transparent)]
+    GrpcDecodeError(#[from] DecodeError),
+
+    #[error(transparent)]
+    GrpcInvalidMetadataKeyError(#[from] tonic::metadata::errors::InvalidMetadataKey),
+
+    #[error(transparent)]
+    GrpcInvalidMetadataValueError(#[from] tonic::metadata::errors::InvalidMetadataValue),
+
+    #[error(transparent)]
+    IOError(#[from] io::Error),
+
+    #[error("GRPC error: {0}")]
+    GenericError(String),
+}
+
+impl Serialize for Error {
+    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str(self.to_string().as_ref())
+    }
+}
+
+pub type Result<T> = std::result::Result<T, Error>;