// iOS - since we use a modern proto-compiler, we must specify the legacy proto format.
syntax = "proto2";

// iOS - package name determines class prefix
package SessionProtos;

message Envelope {

  enum Type {
    UNIDENTIFIED_SENDER     = 6;
    CLOSED_GROUP_CIPHERTEXT = 7;
  }

  // @required
  required Type   type            = 1;
  optional string source          = 2;
  optional uint32 sourceDevice    = 7;
  // @required
  optional uint64 timestamp       = 5;
  optional bytes  content         = 8;
  optional uint64 serverTimestamp = 10;
}

message TypingMessage {

    enum Action {
        STARTED = 0;
        STOPPED = 1;
    }

    // @required
    optional uint64 timestamp = 1;
    // @required
    optional Action action = 2;
}

message Content {
  optional DataMessage          dataMessage          = 1;
  optional ReceiptMessage       receiptMessage       = 5;
  optional TypingMessage        typingMessage        = 6;
  optional ConfigurationMessage configurationMessage = 7;
}

message ClosedGroupCiphertextMessageWrapper {
  // @required
  optional bytes ciphertext = 1;
  // @required
  optional bytes ephemeralPublicKey = 2;
}

message KeyPair {
  // @required
  required bytes publicKey  = 1;
  // @required
  required bytes privateKey = 2;
}

message DataMessage {

  enum Flags {
    EXPIRATION_TIMER_UPDATE = 2;
  }

  message Quote {

    message QuotedAttachment {

      enum Flags {
        VOICE_MESSAGE = 1;
      }

      optional string            contentType = 1;
      optional string            fileName    = 2;
      optional AttachmentPointer thumbnail   = 3;
      optional uint32            flags       = 4;
    }

    // @required
    optional uint64            id          = 1;
    // @required
    optional string            author      = 2;
    optional string            text        = 3;
    repeated QuotedAttachment  attachments = 4;
  }

  message Contact {

    message Name {
      optional string givenName   = 1;
      optional string familyName  = 2;
      optional string prefix      = 3;
      optional string suffix      = 4;
      optional string middleName  = 5;
      optional string displayName = 6;
    }

    message Phone {

      enum Type {
        HOME   = 1;
        MOBILE = 2;
        WORK   = 3;
        CUSTOM = 4;
      }

      optional string value = 1;
      optional Type   type  = 2;
      optional string label = 3;
    }

    message Email {

      enum Type {
        HOME   = 1;
        MOBILE = 2;
        WORK   = 3;
        CUSTOM = 4;
      }

      optional string value = 1;
      optional Type   type  = 2;
      optional string label = 3;
    }

    message PostalAddress {

      enum Type {
        HOME   = 1;
        WORK   = 2;
        CUSTOM = 3;
      }

      optional Type   type         = 1;
      optional string label        = 2;
      optional string street       = 3;
      optional string pobox        = 4;
      optional string neighborhood = 5;
      optional string city         = 6;
      optional string region       = 7;
      optional string postcode     = 8;
      optional string country      = 9;
    }

    message Avatar {
      optional AttachmentPointer avatar    = 1;
      optional bool              isProfile = 2;
    }

    optional Name              name            = 1;
    repeated Phone             number          = 3;
    repeated Email             email           = 4;
    repeated PostalAddress     address         = 5;
    optional Avatar            avatar          = 6;
    optional string            organization    = 7;
  }

  message Preview {
    // @required
    optional string            url   = 1;
    optional string            title = 2;
    optional AttachmentPointer image = 3;
  }

  message LokiProfile {
    optional string displayName = 1;
    optional string profilePicture = 2;
  }

  message ClosedGroupControlMessage {

    enum Type {
      NEW                 = 1; // publicKey, name, encryptionKeyPair, members, admins
      UPDATE              = 2; // name, members
      ENCRYPTION_KEY_PAIR = 3; // wrappers
      NAME_CHANGE         = 4; // name
      MEMBERS_ADDED       = 5; // members
      MEMBERS_REMOVED     = 6; // members
      MEMBER_LEFT         = 7;
    }

    message KeyPairWrapper {
      // @required
      required bytes publicKey        = 1; // The public key of the user the key pair is meant for
      // @required
      required bytes encryptedKeyPair = 2; // The encrypted key pair
    }

    // @required
    required Type           type              = 1;
    optional bytes          publicKey         = 2;
    optional string         name              = 3;
    optional KeyPair        encryptionKeyPair = 4;
    repeated bytes          members           = 5;
    repeated bytes          admins            = 6;
    repeated KeyPairWrapper wrappers          = 7;
  }

  optional string                    body                      = 1;
  repeated AttachmentPointer         attachments               = 2;
  optional GroupContext              group                     = 3;
  optional uint32                    flags                     = 4;
  optional uint32                    expireTimer               = 5;
  optional bytes                     profileKey                = 6;
  optional uint64                    timestamp                 = 7;
  optional Quote                     quote                     = 8;
  repeated Contact                   contact                   = 9;
  repeated Preview                   preview                   = 10;
  optional LokiProfile               profile                   = 101;
  optional ClosedGroupControlMessage closedGroupControlMessage = 104;
  optional string                    syncTarget                = 105;
  optional PublicChatInfo            publicChatInfo            = 999;
}

message ConfigurationMessage {

  message ClosedGroup {
    optional bytes   publicKey         = 1;
    optional string  name              = 2;
    optional KeyPair encryptionKeyPair = 3;
    repeated bytes   members           = 4;
    repeated bytes   admins            = 5;
  }

  repeated ClosedGroup closedGroups = 1;
  repeated string      openGroups   = 2;
}

message ReceiptMessage {

  enum Type {
    DELIVERY = 0;
    READ     = 1;
  }

  // @required
  optional Type   type      = 1;
  repeated uint64 timestamp = 2;
}

message AttachmentPointer {

  enum Flags {
    VOICE_MESSAGE = 1;
  }

  // @required
  optional fixed64 id          = 1;
  optional string  contentType = 2;
  optional bytes   key         = 3;
  optional uint32  size        = 4;
  optional bytes   thumbnail   = 5;
  optional bytes   digest      = 6;
  optional string  fileName    = 7;
  optional uint32  flags       = 8;
  optional uint32  width       = 9;
  optional uint32  height      = 10;
  optional string  caption     = 11;
  optional string  url         = 101;
}

message GroupContext {

  enum Type {
    UNKNOWN      = 0;
    UPDATE       = 1;
    DELIVER      = 2;
    QUIT         = 3;
    REQUEST_INFO = 4;
  }

  // @required
  optional bytes             id      = 1;
  // @required
  optional Type              type    = 2;
  optional string            name    = 3;
  repeated string            members = 4;
  optional AttachmentPointer avatar  = 5;
  repeated string            admins  = 6;
}

message ContactDetails {

  message Avatar {
    optional string contentType = 1;
    optional uint32 length      = 2;
  }

  // @required
  optional string   number      = 1;
  optional string   name        = 2;
  optional Avatar   avatar      = 3;
  optional string   color       = 4;
  optional bytes    profileKey  = 6;
  optional bool     blocked     = 7;
  optional uint32   expireTimer = 8;
  optional string   nickname    = 101;
}

message GroupDetails {

  message Avatar {
    optional string contentType = 1;
    optional uint32 length      = 2;
  }

  // @required
  optional bytes  id          = 1;
  optional string name        = 2;
  repeated string members     = 3;
  optional Avatar avatar      = 4;
  optional bool   active      = 5 [default = true];
  optional uint32 expireTimer = 6;
  optional string color       = 7;
  optional bool   blocked     = 8;
  repeated string admins      = 9;
}

message PublicChatInfo { // Intended for internal use only
    optional uint64 serverID = 1;
}