syntax = "proto3";

package blueberry.facade.hci;

import "google/protobuf/empty.proto";

service LeScanningManagerFacade {
  rpc RegisterScanner(RegisterScannerRequest) returns (google.protobuf.Empty) {}
  rpc Unregister(UnregisterRequest) returns (google.protobuf.Empty) {}
  rpc Scan(ScanRequest) returns (google.protobuf.Empty) {}
  rpc SetScanParameters(SetScanParametersRequest) returns (google.protobuf.Empty) {}
  rpc FetchCallbackEvents(google.protobuf.Empty) returns (stream ScanningCallbackMsg) {}
  rpc FetchAdvertisingReports(google.protobuf.Empty) returns (stream AdvertisingReportMsg) {}
}

enum LeScanType {
  PASSIVE = 0x0;
  ACTIVE = 0x1;
}

enum ScanningCallbackMsgType {
  SCANNER_REGISTERED = 0;
  SET_SCANNER_PARAMETER_COMPLETE = 1;
  SCAN_RESULT = 2;
  TRACK_ADV_FOUND_LOST = 3;
  BATCH_SCAN_REPORTS = 4;
  BATCH_SCAN_THRESHOLD_CROSSED = 5;
  TIMEOUT = 6;
  FILTER_ENABLE = 7;
  FILTER_PARAMETER_SETUP = 8;
  FILTER_CONFIG = 9;
}

enum ScanningStatus {
  SCAN_SUCCESS = 0x00;
  SCAN_NO_RESOURCES = 0x80;
  SCAN_INTERNAL_ERROR = 0x85;
  SCAN_ILLEGAL_PARAMETER = 0x87;
};

message RegisterScannerRequest {
  uint32 uuid = 1;
}

message UnregisterRequest {
  uint32 scanner_id = 1;
}

message ScanRequest {
  bool start = 1;
}

message SetScanParametersRequest {
  uint32 scanner_id = 1;
  LeScanType scan_type = 2;
  uint32 scan_interval = 3;
  uint32 scan_window = 4;
  uint32 scan_phy = 5;
}

message AdvertisingReportMsg {
  bytes event = 1;
}

message ScanningCallbackMsg {
  ScanningCallbackMsgType message_type = 1;
  ScanningStatus status = 2;
  uint32 data = 3;
}