syntax = 'proto3';

package Simple;

message Book {
	string id = 1;
	uint64 read = 2;
	float rating = 3;
	string title = 4;
	string author = 5;
	string publisher = 6;

	// TODO: proto3 now supports optional, switch to that at some point
	oneof isbn {
		uint64 isbn_value = 7;
	}
	oneof pages {
		uint32 pages_value = 8;
	}
}

message Paging {
	uint32 total = 1;
	uint32 current_page = 2;
}

message Books {
	repeated Book books = 1;
	Paging paging = 2;
}