From 4ba34c7300d97839308c58eba107450f6ad2a830 Mon Sep 17 00:00:00 2001
From: Niko PLP <niko@nextgraph.org>
Date: Mon, 29 Apr 2024 17:39:44 +0300
Subject: [PATCH] server_storage core topic OKM object key/col/value mapping

---
 ng-broker/src/server_broker.rs             |  4 +--
 ng-broker/src/server_storage/core/topic.rs | 31 +++++++++++++---------
 ng-net/src/actors/client/pin_repo.rs       |  2 +-
 ng-repo/src/kcv_storage.rs                 | 14 ++++++++++
 4 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/ng-broker/src/server_broker.rs b/ng-broker/src/server_broker.rs
index 47ca602..63e2a5f 100644
--- a/ng-broker/src/server_broker.rs
+++ b/ng-broker/src/server_broker.rs
@@ -21,14 +21,14 @@ use ng_repo::{
 
 use crate::rocksdb_server_storage::RocksDbServerStorage;
 
-struct TopicInfo {
+pub struct TopicInfo {
     repo: RepoHash,
 
     publisher_advert: Option<PublisherAdvert>,
 
     current_heads: HashSet<ObjectId>,
 
-    expose_outer: bool,
+    root_commit: Option<ObjectId>,
 
     /// indicates which users have opened the topic (boolean says if as publisher or not)
     users: HashMap<UserId, bool>,
diff --git a/ng-broker/src/server_storage/core/topic.rs b/ng-broker/src/server_storage/core/topic.rs
index 7d8ed56..63eb59e 100644
--- a/ng-broker/src/server_storage/core/topic.rs
+++ b/ng-broker/src/server_storage/core/topic.rs
@@ -19,6 +19,8 @@ use ng_repo::types::*;
 
 use serde_bare::to_vec;
 
+use crate::server_broker::TopicInfo;
+
 pub struct Topic<'a> {
     key: Vec<u8>,
     repo: ExistentialValue<RepoHash>,
@@ -60,18 +62,23 @@ impl<'a> Topic<'a> {
         vec![&Self::USERS, &Self::HEADS],
     );
 
-    pub fn load(&self) -> Result<(), StorageError> {
-        let props = self.load_props()?;
-        // let bs = BranchInfo {
-        //     id: id.clone(),
-        //     branch_type: prop(Self::TYPE, &props)?,
-        //     read_cap: prop(Self::READ_CAP, &props)?,
-        //     topic: prop(Self::TOPIC, &props)?,
-        //     topic_priv_key: prop(Self::PUBLISHER, &props).ok(),
-        //     current_heads: Self::get_all_heads(id, storage)?,
-        // };
-        // Ok(bs)
-        Ok(())
+    pub fn load(
+        id: &TopicId,
+        overlay: &OverlayId,
+        storage: &'a dyn KCVStorage,
+    ) -> Result<TopicInfo, StorageError> {
+        let mut opening = Topic::new(id, overlay, storage);
+        let props = opening.load_props()?;
+        let existential = col(&Self::REPO, &props)?;
+        opening.repo.set(&existential, &opening)?;
+        let ti = TopicInfo {
+            repo: existential,
+            publisher_advert: col(&Self::ADVERT, &props).ok(),
+            root_commit: col(&Self::ROOT_COMMIT, &props).ok(),
+            users: Self::USERS.get_all(&mut opening)?,
+            current_heads: Self::HEADS.get_all(&mut opening)?,
+        };
+        Ok(ti)
     }
 
     pub fn new(id: &TopicId, overlay: &OverlayId, storage: &'a dyn KCVStorage) -> Self {
diff --git a/ng-net/src/actors/client/pin_repo.rs b/ng-net/src/actors/client/pin_repo.rs
index 2a77232..5ed6017 100644
--- a/ng-net/src/actors/client/pin_repo.rs
+++ b/ng-net/src/actors/client/pin_repo.rs
@@ -48,7 +48,7 @@ impl PinRepo {
             expose_outer: false,
             peers: vec![],
             max_peer_count: 0,
-            allowed_peers: vec![],
+            //allowed_peers: vec![],
             ro_topics,
             rw_topics,
         })
diff --git a/ng-repo/src/kcv_storage.rs b/ng-repo/src/kcv_storage.rs
index 7107b1a..a18180f 100644
--- a/ng-repo/src/kcv_storage.rs
+++ b/ng-repo/src/kcv_storage.rs
@@ -24,6 +24,20 @@ where
     )?)
 }
 
+pub fn col<A>(
+    column: &dyn ISingleValueColumn,
+    props: &HashMap<u8, Vec<u8>>,
+) -> Result<A, StorageError>
+where
+    A: for<'a> Deserialize<'a>,
+{
+    Ok(from_slice(
+        &props
+            .get(&column.suffix())
+            .ok_or(StorageError::PropertyNotFound)?,
+    )?)
+}
+
 pub struct Class<'a> {
     columns: Vec<&'a dyn ISingleValueColumn>,
     multi_value_columns: Vec<&'a dyn IMultiValueColumn>,