syntax = "proto3";

package gatewayprotocol.v1;

import "gatewayprotocol/v1/error.proto";
import "gatewayprotocol/v1/native_configuration.proto";

option swift_prefix = "Gateway";

enum AdFormat {
  AD_FORMAT_UNSPECIFIED = 0;
  AD_FORMAT_INTERSTITIAL = 1;
  AD_FORMAT_REWARDED = 2;
  AD_FORMAT_BANNER = 3;
}

message Placement {
  AdFormat ad_format = 1;
}

message InitializationResponse {
  // Native Configuration contains feature flags and settings to be consumed by Native SDK
  NativeConfiguration native_configuration = 1;

  // Can be used to override URL to be used for accessing the gateway
  optional string universal_request_url = 2;

  // If set, there was an error processing the request.
  optional Error error = 3;

  // If set, Native SDK must send initialization completed request to the gateway
  bool trigger_initialization_completed_request = 4;

  // Count of last show campaigns to be tracked and be sent to the gateway in CampaignState
  int32 count_of_last_shown_campaigns = 5;

  // Placements to be used for SCAR signal collection for waterfall
  map<string, Placement> scar_placements = 6;

  // AdFormats eligible for SCAR signal collection for header bidding
  repeated AdFormat scar_eligible_formats = 7;
}