Initial commit

crates/ocs_plugin_api/src/ipc/server.rs

@@ -0,0 +1,58 @@
+//! Host-side IPC request handler.
+
+use crate::host::HostApi;
+use crate::ipc::protocol::{PluginRequest, PluginResponse};
+
+/// Apply one plugin request to the host's `HostApi` implementation.
+///
+/// `on_start_interactive` is called when the plugin starts an interactive
+/// command; the host should install an adapter that sends
+/// `HostRequest::InteractiveEvent` back to the plugin process.
+pub fn handle_plugin_request(
+    host: &mut dyn HostApi,
+    req: PluginRequest,
+    on_start_interactive: &mut dyn FnMut(u64),
+) -> PluginResponse {
+    use PluginRequest::*;
+    match req {
+        PushInfo(msg) => {
+            host.push_info(&msg);
+            PluginResponse::Ok
+        }
+        PushOutput(msg) => {
+            host.push_output(&msg);
+            PluginResponse::Ok
+        }
+        PushError(msg) => {
+            host.push_error(&msg);
+            PluginResponse::Ok
+        }
+        AddEntity(entity) => PluginResponse::Handle(host.add_entity(entity)),
+        BumpGeometry => {
+            host.bump_geometry();
+            PluginResponse::Ok
+        }
+        ReadRecord { handle, app_name } => {
+            PluginResponse::Record(host.read_record(handle, &app_name).cloned())
+        }
+        WriteRecord { handle, record } => {
+            PluginResponse::Bool(host.write_record(handle, record))
+        }
+        RemoveRecord { handle, app_name } => {
+            PluginResponse::Bool(host.remove_record(handle, &app_name))
+        }
+        PushUndo { label } => {
+            host.push_undo(&label);
+            PluginResponse::Ok
+        }
+        SetDirty => {
+            host.set_dirty();
+            PluginResponse::Ok
+        }
+        StartInteractive { command_id } => {
+            on_start_interactive(command_id);
+            PluginResponse::Ok
+        }
+        DocumentSnapshot => PluginResponse::Document(host.document().clone()),
+    }
+}