// Workspace effimero: sta in /tmp o proprio in memoria
// Workspace e` autenticato: come si decide mentre si rifa il server
// Workspace ha id univoco (stringa), usato per connettercisi
// Workspace implementera` access control:
//   * accedere al workspace
//   * i singoli buffer
//   - i metadati maybe????
// Workspace offre le seguenti features:
//  * listare i buffer DONE
//  * listare gli user connessi DONE
//  * creare buffers DONE REPLACE THE ONE ON buffer.proto
//  * NO ATTACH: responsabilita` del buffer service
//  * contiene metadata dei buffers:
//    * path
//    * data creazione
// Buffer id NON E` il path DONE
// BufferService NON ha metadata:
// Workspace tiene traccia di utenti attached (nel futuro) DONE






syntax = "proto2";

package codemp.workspace_service;
import "proto/model/user.proto";


message Empty {}


message WorkspaceFileTree {
	// list of strings may be more efficient but it's a lot more hassle
	required string payload = 1; // spappolata di json
}

message WorkspaceUserList {
	repeated codemp.model.user.UserIdentity user = 1;
}

message WorkspaceMessage {
	required int32 id = 1;
}


message TreeRequest {} // empty
message UserRequest {}
message CursorResponse{}
message UserListRequest{}

service Workspace {

	//
	rpc Create (BufferPayload) returns (Empty);

	rpc Attach (AttachRequest) returns (Token);

	rpc ListBuffers (BufferListRequest) returns (BufferTree);

	rpc ListUsers (UserListRequest) returns (UserList);

	rpc ListBufferUsers (Empty) returns (Empty);

	rpc Join (JoinRequest) returns (Token);

}


message JoinRequest{
	required string username=1;
	required string password=2;
}

message AttachRequest{
	required string bufferAttach = 1;
}




message Token{
	required string token = 1;
}

enum FileEventType {
	CREATE = 0;
	DELETE = 1;
	RENAME = 2;
}

message FileEvent {
	required string buffer = 1;

	required FileEventType type = 2;
}

enum UserEventType {
	JOIN = 0;
	LEAVE = 1;
}

message UserEvent {
	required codemp.model.user.UserIdentity user = 1;

	required UserEventType type = 2;
}



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

	// user id that is requesting the operation
	required codemp.model.user.UserIdentity user = 2;

}


message BufferListRequest{

}

message BufferNode{
	required string path = 1;
}

message BufferTree{
	repeated BufferNode buffers = 1;
}

message UserList{
	repeated codemp.model.user.UserIdentity users = 1;
}