syntax = "proto3";

package containerd.v1;

import "gogoproto/gogo.proto";

service Registry {
	// Pull an image from a registry
	rpc Pull(PullRequest) returns (PullResponse);
	// Push pushes a new or existing image to a registry
	rpc Push(PushRequest) returns (PushResponse);
	// Delete deletes an image from the registry
	rpc Delete(DeleteRequest) returns (DeleteResponse);

	// Status returns a progress stream of the push or pull operation
	rpc Status(StatusRequest) returns (stream StatusResponse);
	// Cancel cancels a push or pull operation
	rpc Cancel(CancelRequest) returns (CancelResponse);
}

message PullRequest {
	string uri = 1;
	Authentication auth = 2;
}

message PullResponse {
	string id = 1 [(gogoproto.customname) = "ID"];
	repeated Layer layers = 2;
}

message PushRequest {}
message PushResponse {}

message StatusRequest {}
message StatusResponse {}

message DeleteRequest {}
message DeleteResponse {}

message CancelRequest{}
message CancelResponse{}

message Layer {
	string id = 1 [(gogoproto.customname) = "ID"];
	uint64 size = 2;
}

// TODO: we have no clue what should go here, halp stevvooo
message Authentication {
	string username = 1;
	string password = 2;
}