Add config Change tracking

client/src/pages/config/config.vue

@@ -9,9 +9,8 @@ let loading = $ref(false);
 
 const columns = [
   {heading: 'Path', path: 'path'},
-  {heading: 'Type', path: 'type'},
-  {heading: 'From', path: 'from'},
-  {heading: 'To', path: 'to'},
+  {heading: 'Action', path: 'action'},
+  {heading: 'ID', path: 'id'},
 ];
 
 const displayData = $computed(() => {
@@ -20,9 +19,8 @@ const displayData = $computed(() => {
   for (const change of changelog) {
     data.push({
       path: change.path,
-      type: change.type,
-      from: change.from,
-      to: change.to,
+      action: change.action,
+      id: change.id,
     });
   }
   return data;

src/api/config.rs

@@ -1,12 +1,13 @@
 use jsonrpsee::types::Params;
 
+use crate::config_manager::Change;
 use crate::state::RpcState;
 
 use super::ApiError;
 use super::ApiError::ConfigError;
 
-pub fn get_pending_changelog(_: Params, state: &RpcState) -> Result<(), ApiError> {
-    Err(ApiError::NotImplemented)
+pub fn get_pending_changelog(_: Params, state: &RpcState) -> Result<Vec<Change>, ApiError> {
+    Ok(state.config_manager.clone().get_pending_changelog())
 }
 
 pub fn apply_pending_changes(_: Params, state: &RpcState) -> Result<(), ApiError> {

src/api/system.rs

@@ -1,3 +1,6 @@
+use crate::config_manager::{
+    Change, ChangeAction::Create, ChangeAction::Delete, ChangeAction::Update,
+};
 use crate::{definitions::system::User, state::RpcState};
 use jsonrpsee::types::Params;
 use pwhash::sha512_crypt;
@@ -10,6 +13,8 @@ use ApiError::ParameterDeserialize;
 
 use super::{ApiError, GetStringID};
 
+const USER_CHANGE_PATH: &str = "system.user";
+
 #[derive(Serialize, Clone)]
 pub struct GetUser {
     name: String,
@@ -68,11 +73,11 @@ pub fn create_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
     let mut tx = cm.start_transaction();
 
     if tx
-        .changes
+        .config
         .system
         .users
         .insert(
-            u.name,
+            u.name.clone(),
             User {
                 comment: match u.comment {
                     Some(c) => c,
@@ -83,8 +88,12 @@ pub fn create_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
         )
         .is_none()
     {
-        tx.commit().map_err(ConfigError)?;
-        Ok(())
+        tx.commit(Change {
+            action: Create,
+            path: USER_CHANGE_PATH,
+            id: u.name,
+        })
+        .map_err(ConfigError)
     } else {
         tx.revert();
         Err(NotFound)
@@ -104,7 +113,7 @@ pub fn update_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
     let mut cm = state.config_manager.clone();
     let mut tx = cm.start_transaction();
 
-    match tx.changes.system.users.get(&u.name) {
+    match tx.config.system.users.get(&u.name) {
         Some(user) => {
             // Only Update Password if field is not empty
             let hash = if u.password == "" {
@@ -113,8 +122,8 @@ pub fn update_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
                 sha512_crypt::hash(u.password).map_err(HashError)?
             };
 
-            tx.changes.system.users.insert(
-                u.name,
+            tx.config.system.users.insert(
+                u.name.clone(),
                 User {
                     comment: match u.comment {
                         Some(c) => c,
@@ -123,7 +132,12 @@ pub fn update_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
                     hash,
                 },
             );
-            Ok(())
+            tx.commit(Change {
+                action: Update,
+                path: USER_CHANGE_PATH,
+                id: u.name,
+            })
+            .map_err(ConfigError)
         }
         None => Err(NotFound),
     }
@@ -140,8 +154,14 @@ pub fn delete_user(p: Params, state: &RpcState) -> Result<(), ApiError> {
     let mut cm = state.config_manager.clone();
     let mut tx = cm.start_transaction();
 
-    match tx.changes.system.users.remove(&u.name) {
-        Some(_) => tx.commit().map_err(ConfigError),
+    match tx.config.system.users.remove(&u.name) {
+        Some(_) => tx
+            .commit(Change {
+                action: Delete,
+                path: USER_CHANGE_PATH,
+                id: u.name,
+            })
+            .map_err(ConfigError),
         None => {
             tx.revert();
             Err(NotFound)

src/config_manager.rs

@@ -1,3 +1,4 @@
+use serde::Serialize;
 use validator::Validate;
 
 use super::definitions::config::Config;
@@ -35,9 +36,30 @@ pub struct ConfigManager {
     shared_data: Arc<Mutex<SharedData>>,
 }
 
+pub struct ConfigTransaction<'a> {
+    finished: bool,
+    shared_data: MutexGuard<'a, SharedData>,
+    pub config: Config,
+}
+
 struct SharedData {
     current_config: Config,
     pending_config: Config,
+    changelog: Vec<Change>,
+}
+
+#[derive(Clone, Serialize)]
+pub struct Change {
+    pub action: ChangeAction,
+    pub path: &'static str,
+    pub id: String,
+}
+
+#[derive(Clone, Serialize)]
+pub enum ChangeAction {
+    Create,
+    Update,
+    Delete,
 }
 
 // Note, using unwarp on a mutex lock is ok since that only errors with mutex poisoning
@@ -49,6 +71,8 @@ impl ConfigManager {
                 current_config: read_file_to_config(CURRENT_CONFIG_PATH)?,
                 // TODO Dont Fail if pending config is missing, use current instead
                 pending_config: read_file_to_config(PENDING_CONFIG_PATH)?,
+                // TODO Figure out how to restore changes
+                changelog: Vec::new(),
             })),
         })
     }
@@ -61,6 +85,10 @@ impl ConfigManager {
         self.shared_data.lock().unwrap().pending_config.clone()
     }
 
+    pub fn get_pending_changelog(&self) -> Vec<Change> {
+        self.shared_data.lock().unwrap().changelog.clone()
+    }
+
     pub fn apply_pending_changes(&mut self) -> Result<(), ConfigError> {
         let mut data = self.shared_data.lock().unwrap();
         // TODO run Apply functions
@@ -69,6 +97,7 @@ impl ConfigManager {
         // TODO revert if config save fails
         // TODO Remove Pending Config File
         data.current_config = data.pending_config.clone();
+        data.changelog = Vec::new();
         Ok(())
     }
 
@@ -77,6 +106,7 @@ impl ConfigManager {
         // TODO Remove Pending Config File
 
         data.pending_config = data.current_config.clone();
+        data.changelog = Vec::new();
         Ok(())
     }
 
@@ -85,23 +115,18 @@ impl ConfigManager {
 
         ConfigTransaction {
             finished: false,
-            changes: data.pending_config.clone(),
+            config: data.pending_config.clone(),
             shared_data: data,
         }
     }
 }
 
-pub struct ConfigTransaction<'a> {
-    finished: bool,
-    shared_data: MutexGuard<'a, SharedData>,
-    pub changes: Config,
-}
-
 impl<'a> ConfigTransaction<'a> {
-    pub fn commit(mut self) -> Result<(), ConfigError> {
-        let ch = self.changes.clone();
+    pub fn commit(mut self, change: Change) -> Result<(), ConfigError> {
+        let ch = self.config.clone();
         ch.validate()?;
         self.shared_data.pending_config = ch.clone();
+        self.shared_data.changelog.push(change);
         write_config_to_file(PENDING_CONFIG_PATH, ch.clone())?;
         Ok(())
     }