Added better error handling for API+Database

+ GeoffreyDatabaseError implements Into<GeoffreyApiError>
+ The database Option and Result were combined into just Result to reduce complexity

geoffrey_api/src/commands/add_location.rs

@@ -42,7 +42,7 @@ impl Command for AddLocation {
                 .insert(location)
                 .map_err(|err| GeoffreyAPIError::DatabaseError(err.to_string()))
         } else {
-            Err(GeoffreyAPIError::PlayerNotFound)
+            Err(GeoffreyAPIError::PlayerNotRegistered)
         }
     }
 }

geoffrey_api/src/helper/mod.rs

@@ -2,13 +2,11 @@ use crate::Result;
 use geoffrey_db::database::Database;
 use geoffrey_models::models::parameters::CommandRequest;
 use geoffrey_models::models::player::Player;
-use geoffrey_models::models::response::api_error::GeoffreyAPIError;
 
 pub fn get_player_from_req<T>(db: &Database, req: &CommandRequest<T>) -> Result<Option<Player>> {
     if let Some(user_id) = &req.user {
         Ok(db
-            .filter(|_, player: &Player| player.has_user_id(user_id))
-            .map_err(|err| GeoffreyAPIError::DatabaseError(err.to_string()))?
+            .filter(|_, player: &Player| player.has_user_id(user_id)).map_err(|e| e.into())?
             .next())
     } else {
         Ok(None)

geoffrey_db/src/database.rs

@@ -48,7 +48,7 @@ impl Database {
         Ok(model)
     }
 
-    pub fn get<T>(&self, id: u64) -> Result<Option<T>>
+    pub fn get<T>(&self, id: u64) -> Result<T>
     where
         T: GeoffreyDatabaseModel,
     {
@@ -56,9 +56,9 @@ impl Database {
         let id_bytes = id.to_be_bytes();
 
         if let Some(bytes) = tree.get(id_bytes)? {
-            Ok(Some(T::try_from_bytes(&bytes)?))
+            Ok(T::try_from_bytes(&bytes)?)
         } else {
-            Ok(None)
+            Err(GeoffreyDBError::NotFound)
         }
     }
 
@@ -125,7 +125,7 @@ mod tests {
 
     #[test]
     fn test_insert() {
-        let player = Player::new("CoolZero123", UserID::DiscordUUID(0u64));
+        let player = Player::new("CoolZero123", UserID::DiscordUUID {discord_uuid: 0u64});
 
         let p2 = DB.insert::<Player>(player.clone()).unwrap();
 
@@ -137,8 +137,8 @@ mod tests {
 
     #[test]
     fn test_unique_insert() {
-        let player1 = Player::new("CoolZero123", UserID::DiscordUUID(0u64));
-        let player2 = Player::new("CoolZero123", UserID::DiscordUUID(0u64));
+        let player1 = Player::new("CoolZero123", UserID::DiscordUUID {discord_uuid: 0u64});
+        let player2 = Player::new("CoolZero123", UserID::DiscordUUID {discord_uuid: 0u64});
 
         DB.insert::<Player>(player1.clone()).unwrap();
         assert_eq!(DB.insert::<Player>(player2.clone()).is_err(), true);
@@ -148,20 +148,19 @@ mod tests {
 
     #[test]
     fn test_get() {
-        let player = Player::new("CoolZero123", UserID::DiscordUUID(0u64));
+        let player = Player::new("CoolZero123", UserID::DiscordUUID {discord_uuid: 0u64});
 
         let p2 = DB.insert::<Player>(player.clone()).unwrap();
 
         let p3 = DB.get::<Player>(p2.id().unwrap()).unwrap();
 
-        assert!(p3.is_some());
-        assert_eq!(p3.unwrap().name, player.name);
+        assert_eq!(p3.name, player.name);
         cleanup();
     }
 
     #[test]
     fn test_filter() {
-        let player = Player::new("CoolZero123", UserID::DiscordUUID(0u64));
+        let player = Player::new("CoolZero123", UserID::DiscordUUID {discord_uuid: 0u64});
         let player = DB.insert::<Player>(player.clone()).unwrap();
         let loc = Location::new(
             "Test Shop",
@@ -191,7 +190,7 @@ mod tests {
         let insert_count = 1000;
         let timer = Instant::now();
         for i in 0..insert_count {
-            let player = Player::new("test", UserID::DiscordUUID(i));
+            let player = Player::new("test", UserID::DiscordUUID {discord_uuid: i});
 
             DB.insert::<Player>(player).unwrap();
         }

geoffrey_db/src/error.rs

@@ -1,3 +1,5 @@
+use geoffrey_models::models::response::api_error::GeoffreyAPIError;
+
 pub type Result<T> = std::result::Result<T, GeoffreyDBError>;
 
 #[derive(Debug)]
@@ -5,6 +7,7 @@ pub enum GeoffreyDBError {
     SledError(sled::Error),
     SerdeJsonError(serde_json::Error),
     NotUnique,
+    NotFound,
 }
 
 impl std::error::Error for GeoffreyDBError {}
@@ -15,6 +18,7 @@ impl std::fmt::Display for GeoffreyDBError {
             GeoffreyDBError::SledError(e) => write!(f, "Sled Error: {}", e),
             GeoffreyDBError::SerdeJsonError(e) => write!(f, "Serde JSON Error: {}", e),
             GeoffreyDBError::NotUnique => write!(f, "Entry is not unique."),
+            GeoffreyDBError::NotFound => write!(f, "Entry was not found."),
         }
     }
 }
@@ -30,3 +34,14 @@ impl From<serde_json::Error> for GeoffreyDBError {
         GeoffreyDBError::SerdeJsonError(e)
     }
 }
+
+impl Into<GeoffreyAPIError> for GeoffreyDBError {
+    fn into(self) -> GeoffreyAPIError {
+        match self {
+            GeoffreyDBError::SledError(_) => GeoffreyAPIError::DatabaseError(self.to_string()),
+            GeoffreyDBError::SerdeJsonError(_) => GeoffreyAPIError::DatabaseError(self.to_string()),
+            GeoffreyDBError::NotUnique => GeoffreyAPIError::EntryNotUnique,
+            GeoffreyDBError::NotFound => GeoffreyAPIError::EntryNotFound
+        }
+    }
+}

geoffrey_models/src/models/response/api_error.rs

@@ -2,8 +2,9 @@ use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Serialize, Deserialize)]
 pub enum GeoffreyAPIError {
-    PlayerNotFound,
-    LocationNotFound,
+    PlayerNotRegistered,
+    EntryNotFound,
     PermissionInsufficient,
+    EntryNotUnique,
     DatabaseError(String),
 }