feat: move core to tui and begin grpc work

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/hyperlog-tui/src/shared_engine.rs

@@ -0,0 +1,72 @@
+use std::sync::{Arc, RwLock};
+
+use hyperlog_core::log::GraphItem;
+
+use crate::engine::Engine;
+
+#[derive(Clone)]
+pub struct SharedEngine {
+    inner: Arc<RwLock<Engine>>,
+}
+
+impl From<Engine> for SharedEngine {
+    fn from(value: Engine) -> Self {
+        SharedEngine {
+            inner: Arc::new(RwLock::new(value)),
+        }
+    }
+}
+
+impl SharedEngine {
+    pub fn to_str(&self) -> anyhow::Result<String> {
+        self.inner.read().unwrap().to_str()
+    }
+
+    pub fn create_root(&self, root: &str) -> anyhow::Result<()> {
+        self.inner.write().unwrap().create_root(root)
+    }
+
+    pub fn create(&self, root: &str, path: &[&str], item: GraphItem) -> anyhow::Result<()> {
+        self.inner.write().unwrap().create(root, path, item)
+    }
+
+    pub fn get(&self, root: &str, path: &[&str]) -> Option<GraphItem> {
+        self.inner.read().unwrap().get(root, path).cloned()
+    }
+
+    pub fn section_move(
+        &self,
+        root: &str,
+        src_path: &[&str],
+        dest_path: &[&str],
+    ) -> anyhow::Result<()> {
+        self.inner
+            .write()
+            .unwrap()
+            .section_move(root, src_path, dest_path)
+    }
+
+    pub fn toggle_item(&self, root: &str, path: &[&str]) -> anyhow::Result<()> {
+        self.inner.write().unwrap().toggle_item(root, path)?;
+
+        Ok(())
+    }
+
+    pub(crate) fn update_item(
+        &self,
+        root: &str,
+        path: &[&str],
+        state: GraphItem,
+    ) -> anyhow::Result<()> {
+        self.inner
+            .write()
+            .unwrap()
+            .update_item(root, path, &state)?;
+
+        Ok(())
+    }
+
+    pub(crate) fn get_roots(&self) -> Option<Vec<String>> {
+        self.inner.read().unwrap().get_roots()
+    }
+}