+ fix EVERYTHING

+ add versioning (only as counter)
+ get_secret from sled
= refactor serde conversion to JSON

crates/base/src/lib.rs

@@ -16,14 +16,14 @@ mod tests {
         let temp_secret = TempSecret { content: String::from("Hallo"), version: 12 };
         let serialized = serialize_secret_json(&temp_secret);
         println!("string serialized: {:?}", serialized);
-        let deserialized = deserialize_secret_struct(&serialized);
-        println!("Struct field from deserialized: {}", deserialized.content)
+        let deserialized = deserialize_secret_struct(&serialized.unwrap());
+        println!("Struct field from deserialized: {}", deserialized.unwrap().content)
     }
 }
 
 use serde::{Serialize, Deserialize};
 
-#[derive(Serialize, Deserialize)]
+#[derive(Serialize, Deserialize, Debug)]
 pub struct TempSecret {
     pub content: String,
     pub version: i64
@@ -35,11 +35,11 @@ pub struct TempSecret {
 // }
 
 /// serialize secret to JSON String
-pub fn serialize_secret_json(secret: &TempSecret) -> String {
-    serde_json::to_string(&secret).unwrap()
+pub fn serialize_secret_json(secret: &TempSecret) -> Result<String, serde_json::Error> {
+    serde_json::to_string(&secret)
 }
 
 /// deserialize JSON String to secret
-pub fn deserialize_secret_struct(raw: &String) -> TempSecret{
-    serde_json::from_str(&raw).unwrap()
+pub fn deserialize_secret_struct(raw: &String) -> Result<TempSecret, serde_json::Error>{
+    serde_json::from_str(&raw)
 }

crates/storage-sled/src/lib.rs

@@ -12,27 +12,45 @@ mod tests {
         assert_eq!(result, 4);
     }
     #[test]
-    fn test_sled() {
+    fn test_update_secret() {
         let db: sled::Db = sled::open("sled_db").unwrap();
-        update_secret(db, "foo", TempSecret{version: 1, content: "foo".to_string()}); 
+        update_secret(&db, "foo", TempSecret{version: -99, content: "cool".to_string()}); 
+    }
+    #[test]
+    fn test_get_secret() {
+        let db: sled::Db = sled::open("sled_db").unwrap();
+        get_secret(&db, "foo"); 
     }
 }
 
 use sled::Db;
-use base::{serialize_secret_json, TempSecret};
+use base::{deserialize_secret_struct, serialize_secret_json, TempSecret};
 
 /// [TODO] Currently no proper versioning 
 /// inserts a secret. If there was already a secret in the given path, the version is incremented
-fn update_secret(db: Db, path: &str, mut secret: TempSecret) {
-    if let Ok(Some(_)) = db.get(path) { // Idiomatic way. Ok(Some(_)) is true when something was found
-        secret.version += 1;
-        print!("something was found \n")
+fn update_secret(db: &Db, path: &str, mut secret: TempSecret) {
+    match get_secret(db, path) {
+        Some(old_secret) => {
+            // case secret found. TODO save it somewhere for versioning
+            secret.version = old_secret.version + 1;
+            #[cfg(test)]
+            print!("something was found. new version {} \n", secret.version) 
+        }
+        None => {
+            // case new secret
+            secret.version = 1;
+        }
     }
     // if let secret_json = serialize_secret_json(&secret) {
     // let _res = db.insert(path, secret_json); // maybe this can be handled cleaner
     match serialize_secret_json(&secret) {
         Ok(secret_json) => {
-            match db.insert(path, secret_json) {
+            #[cfg(test)]
+            println!("String: {:?}", secret_json.clone());
+            let as_ivec = sled::IVec::from(secret_json.into_bytes()); // maybe outsource this in a fn later
+            #[cfg(test)]
+            println!("ivec: {:?}", as_ivec);
+            match db.insert(path, as_ivec) {
                 Ok(_) => println!("Secret inserted"),
                 Err(e) => eprintln!("Failed to insert secret: {}", e),
             }
@@ -41,9 +59,34 @@ fn update_secret(db: Db, path: &str, mut secret: TempSecret) {
     }
 }
 
-// /// read and return a secret from the DB
-// /// if there is no secret, return None
-// fn get_secret(db: Db, path: &str) -> Option<TempSecret>{
-//     let raw_secret = db.get(path);
-//     return None
-// }
+// read and return a secret from the DB
+//if there is no secret, return None
+fn get_secret(db: &Db, path: &str) -> Option<TempSecret>{
+    let raw_secret;
+    match db.get(path) {
+        Ok(Some(ivec)) => {
+            raw_secret = ivec;
+        }
+        Err(e) => {
+            eprintln!("Error on retrieving secret: {}", e);
+            return None;
+        }
+        Ok(None) => {
+            return None;
+        }
+    }
+     // outsource this in a fn later. TODO maybe deal with unwrap
+    let as_str = String::from_utf8(raw_secret.to_vec()).unwrap();
+    match deserialize_secret_struct(&as_str) {
+        Ok(secret) => {
+            #[cfg(test)]
+            println!("got some secret: {:?}", secret);
+            return Some(secret);
+        }
+        Err(e) => {
+            eprintln!("error on secret deserialization: {}", e);
+            return None;
+        }
+
+    } 
+}