add initial chat server stuff

foxchat/Cargo.toml

@@ -11,5 +11,6 @@ eyre = "0.6.11"
 serde = { version = "1.0.195", features = ["derive"] }
 serde_json = "1.0.111"
 sqlx = "0.7.3"
+thiserror = "1.0.56"
 tracing = "0.1.40"
 uuid = { version = "1.6.1", features = ["v7"] }

foxchat/src/error/mod.rs

@@ -0,0 +1,7 @@
+use thiserror::Error;
+
+#[derive(Error, Debug, Copy, Clone)]
+pub enum QueryError {
+    #[error("object not found")]
+    NotFound,
+}

foxchat/src/http/response.rs

@@ -8,6 +8,8 @@ use serde::Serialize;
 use serde_json::json;
 use tracing::error;
 
+use crate::QueryError;
+
 pub struct ApiError {
     status: StatusCode,
     code: ErrorCode,
@@ -32,6 +34,7 @@ impl IntoResponse for ApiError {
 #[serde(rename_all = "SCREAMING_SNAKE_CASE")]
 pub enum ErrorCode {
     InternalServerError,
+    ObjectNotFound,
 }
 
 impl From<sqlx::Error> for ApiError {
@@ -50,6 +53,11 @@ impl From<sqlx::Error> for ApiError {
 
 impl From<Report> for ApiError {
     fn from(err: Report) -> Self {
+        match err.downcast_ref::<QueryError>() {
+            Some(e) => return (*e).into(),
+            None => {}
+        };
+
         error!("Error in handler: {}", err);
         ApiError {
             status: StatusCode::INTERNAL_SERVER_ERROR,
@@ -62,3 +70,15 @@ impl From<Report> for ApiError {
         }
     }
 }
+
+impl From<QueryError> for ApiError {
+    fn from(err: QueryError) -> Self {
+        match err {
+            QueryError::NotFound => ApiError {
+                status: StatusCode::NOT_FOUND,
+                code: ErrorCode::ObjectNotFound,
+                message: "Object not found".into(),
+            },
+        }
+    }
+}

foxchat/src/lib.rs

@@ -1,2 +1,5 @@
-pub mod s2s;
+pub mod error;
 pub mod http;
+pub mod s2s;
+
+pub use error::QueryError;