syntax = "proto3";

package moe.nekojimi.friendcloud.protos;

import "CommonMessages.proto";

enum ObjectType {
    OBJECT_TYPE_UNSPECIFIED = 0;
    OBJECT_TYPE_USER = 1;
    OBJECT_TYPE_PEER = 2;
    OBJECT_TYPE_FILE = 3;
    OBJECT_TYPE_FOLDER = 4;
}

message ObjectState {
    uint64 object_id = 1;
    map<string,string> values = 2;
}

message ObjectStateMessage {
    repeated uint64 change_heads = 1;
    repeated ObjectState states = 2;
}

message ObjectStateRequest {
    repeated uint64 object_ids = 1;
    repeated string keys = 2;
}

message ObjectChange {
    uint64 object_id = 1;
    map<string,string> before = 3;
    map<string,string> after = 4;
}

message ObjectChangeMessage {
    uint64 change_id = 1;
    repeated uint64 change_heads = 2;
    repeated ObjectChange changes = 3;
    uint64 creator_id = 4;
    uint64 timestamp_ms = 5;
}

message ObjectChangeListMessage {
    repeated ObjectChangeMessage change_messages = 1;
}

message ObjectChangeRequest {
    repeated uint64 changes_since = 1;
}

message ObjectList {
    uint64 change_head = 1;
    repeated ObjectState states = 2;
}

message ObjectListRequest {
    repeated ObjectType types = 1;

}