syntax = "proto3";

option go_package = "github.com/edgelesssys/constellation/v2/debugd/service";

package debugd;

service Debugd {
    rpc SetInfo (SetInfoRequest) returns (SetInfoResponse) {}
    rpc GetInfo (GetInfoRequest) returns (GetInfoResponse) {}
    rpc UploadFiles(stream FileTransferMessage) returns (UploadFilesResponse) {}
    rpc DownloadFiles(DownloadFilesRequest) returns (stream FileTransferMessage) {}
    rpc UploadSystemServiceUnits(UploadSystemdServiceUnitsRequest) returns (UploadSystemdServiceUnitsResponse) {}
}

message SetInfoRequest {
    repeated Info info = 1;
}

message SetInfoResponse {
    SetInfoStatus status = 1;
}

enum SetInfoStatus {
    SET_INFO_SUCCESS = 0;
    SET_INFO_ALREADY_SET = 1;
}

message GetInfoRequest {}

message GetInfoResponse {
    repeated Info info = 1;
}

message Info {
    string key = 1;
    string value = 2;
}

message DownloadFilesRequest {}

message FileTransferMessage {
    oneof kind {
        FileTransferHeader header = 1; // start of transfer
        Chunk chunk = 2; // file content as chunks
    }
}

message FileTransferHeader {
    string targetPath = 1;
    uint32 mode = 3;
    optional string overrideServiceUnit = 4;
}

message Chunk {
    bytes content = 1;
    bool last = 2;
}

message UploadFilesResponse {
    UploadFilesStatus status = 1;
}

enum UploadFilesStatus {
    UPLOAD_FILES_SUCCESS = 0;
    UPLOAD_FILES_UPLOAD_FAILED = 1;
    UPLOAD_FILES_ALREADY_STARTED = 2;
    UPLOAD_FILES_ALREADY_FINISHED = 3;
    UPLOAD_FILES_START_FAILED = 4;
}

message ServiceUnit {
    string name = 1;
    string contents = 2;
}

message UploadSystemdServiceUnitsRequest {
    repeated ServiceUnit units = 1;
}

message UploadSystemdServiceUnitsResponse {
    UploadSystemdServiceUnitsStatus status = 1;
}

enum UploadSystemdServiceUnitsStatus {
    UPLOAD_SYSTEMD_SERVICE_UNITS_SUCCESS = 0;
    UPLOAD_SYSTEMD_SERVICE_UNITS_FAILURE = 1;
}