/*
	Copyright © 2015-2016 Gluzskiy Alexandr (sss)

    This file is part of Unknown Download Manager (UDM).

    UDM is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    UDM is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with UDM.  If not, see <http://www.gnu.org/licenses/>.

*/

//TODO: write readable proto description

syntax = "proto2";

import "ui.proto";
import "events.proto";
import "download.proto";
import "module.proto";
import "auth.proto";
import "core.proto";


//TODO: large datatransfer proto part
// it should be in separate connection
// it should be very simple
// it should have as small overhead as possible, better none at all
//vaviant 1: client: > request peace of data
//			server: < reply "peace of data" size or error
//			client:  if no error and data size is sane start reading "data size"
//			done, server can handle more commands now

//message client_data_transfer_request {
//}

//message server_data_transfer_reply {
//}

//top level messages begin


enum CLIENT_MSG_TYPE {
    CLIENT_AUTH_REQUEST = 0;
    CLIENT_DATA_TRANSFER_REQUEST = 1;
    CLIENT_UI_DATA_REQUEST = 2;
    CLIENT_MODULES_REQUEST = 3;
    CLIENT_CORE_INFO_REQUEST = 4;
    CLIENT_SUBSCRIPTION_REQUEST = 5;
    CLIENT_UNSUBSCRIPTION_REQUEST = 6;
    CLIENT_DOWNLOADS_LIST_REQUEST = 7;
    CLIENT_DOWNLOAD_ADD = 8;
    CLIENT_DOWNLOAD_START = 9;
    CLIENT_DOWNLOAD_STOP = 10;
    CLIENT_DOWNLOAD_DELETE = 11;
    CLIENT_DOWNLOAD_EXECUTE_ACTION = 12;
    CLIENT_DOWNLOAD_INFO_REQUEST = 13;
}

message client_msg {
	required CLIENT_MSG_TYPE type = 1;
	optional string auth_token = 2; //this must be set in all message type's except CLIENT_AUTH_REQUEST
	optional client_auth_request auth_request = 3;
	repeated client_download_ui_data_request download_ui_data_request = 4;
	repeated client_event_subscription_request subscription_request = 5;
	repeated client_event_unsubscription_request unsubscription_request = 6;
	optional client_download_request download_info_request = 7;
	optional client_download_add_request download_add_request = 8;
	//TODO: use new download_state_change_request instaed of all download_*_request structures (simplification)
	repeated client_download_start_request download_start_request = 9;
	repeated client_download_stop_request download_stop_request = 10;
	repeated client_download_delete_request download_delete_request = 11;
	repeated client_download_action_request download_action_request = 12;
	optional client_downloads_request download_list_request = 13;
}



enum SERVER_MSG_TYPE {
	SERVER_AUTH_REPLY = 0;
	SERVER_UI_DATA_REPLY = 1;
	SERVER_MODULES_REPLY = 2;
	SERVER_CORE_INFO_REPLY = 3;
	SERVER_SUBSCRIPTIONS_REPLY = 4;
	SERVER_UNSUBSCRIPTIONS_REPLY = 5;
	SERVER_DOWNLOADS_LIST_REPLY = 6;
	SERVER_DOWNLOAD_INFO_REPLY = 7;
	SERVER_DOWNLOAD_STATE_CHANGE = 8;
}



message server_msg {
	required SERVER_MSG_TYPE type = 1;
	optional server_download_ui_data_reply download_ui_data_reply = 2;
	optional server_auth_reply auth_reply = 3;
	repeated module_info server_modules_reply = 4;
	optional core_info server_core_info_reply = 5;
	repeated server_event_subscription_reply subscription_reply = 6;
	repeated server_event_unsubscription_reply unsubscription_reply = 7;
	optional server_download_reply download = 8;
	repeated server_download_reply downloads = 9;
	repeated download_state_change download_state_changes = 10;
}

//top level messages end