syntax = "proto2";

package workspace;
import "files.proto";
import "auth.proto";
import "common.proto";

service Workspace {
	rpc CreateWorkspace (workspace.WorkspaceId) returns (common.Empty);
	
	rpc RequestAccess (workspace.BufferPath) returns (auth.Token);
	rpc LeaveWorkspace (workspace.WorkspaceId) returns (common.Empty);
	rpc CreateBuffer (workspace.BufferPath) returns (common.Empty);
	rpc ListBuffers (common.Empty) returns (files.BufferTree); 
	rpc ListUsers (common.Empty) returns (common.UserList);
	rpc ListBufferUsers (workspace.BufferPath) returns (common.UserList); //TODO discuss
	rpc Attach (common.Empty) returns (stream workspace.WorkspaceEvent);
	rpc Delete (workspace.BufferPath) returns (common.Empty); //deletes buffer
}

message WorkspaceEvent {
	message UserJoin {
		required common.UserIdentity id = 1;
	}
	message UserLeave {
		required common.UserIdentity id = 1;
	}
	message FileCreate {
		required string path = 1;
	}
	message FileRename {
		required string before = 1;
		required string after = 2;
	}
	message FileDelete {
		required string path = 1;
	}

	oneof event {
		UserJoin join = 1;
		UserLeave leave = 2;
		FileCreate create = 3;
		FileRename rename = 4;
		FileDelete delete = 5;
	}
}

message BufferPath {
	// buffer path to operate onto
	required string path = 1;
}


message WorkspaceId {
	required string id = 1;
}