syntax = "proto3";

package bitswap.message.pb;

import "github.com/gogo/protobuf/gogoproto/gogo.proto";

message Message {

  message Wantlist {
    enum WantType {
      Block = 0;
      Have = 1;
    }

    message Entry {
			bytes block = 1 [(gogoproto.customtype) = "Cid", (gogoproto.nullable) = false];		// the block cid (cidV0 in bitswap 1.0.0, cidV1 in bitswap 1.1.0)
			int32 priority = 2;	// the priority (normalized). default to 1
			bool cancel = 3;		// whether this revokes an entry
      WantType wantType = 4; // Note: defaults to enum 0, ie Block
      bool sendDontHave = 5; // Note: defaults to false
		}

    repeated Entry entries = 1 [(gogoproto.nullable) = false];	// a list of wantlist entries
    bool full = 2;							// whether this is the full wantlist. default to false
  }

  message Block {
    bytes prefix = 1;		// CID prefix (cid version, multicodec and multihash prefix (type + length)
    bytes data = 2;
  }

  enum BlockPresenceType {
    Have = 0;
    DontHave = 1;
  }
  message BlockPresence {
    bytes cid = 1 [(gogoproto.customtype) = "Cid", (gogoproto.nullable) = false];
    BlockPresenceType type = 2;
  }

  Wantlist wantlist = 1 [(gogoproto.nullable) = false];
  repeated bytes blocks = 2;		// used to send Blocks in bitswap 1.0.0
  repeated Block payload = 3 [(gogoproto.nullable) = false];		// used to send Blocks in bitswap 1.1.0
  repeated BlockPresence blockPresences = 4 [(gogoproto.nullable) = false];
  int32 pendingBytes = 5;
}