syntax = "proto3";
package ricochet;

import "network.proto";
import "identity.proto";
import "contact.proto";
import "conversation.proto";

service RicochetCore {
    // Query RPC server version and status
    rpc GetServerStatus (ServerStatusRequest) returns (ServerStatusReply);

    // Open a stream to monitor changes to network status. The current
    // NetworkStatus will be sent immediately, and the stream will receive a
    // new NetworkStatus after any changes until the stream is closed.
    rpc MonitorNetwork (MonitorNetworkRequest) returns (stream NetworkStatus);
    // Start connecting to the network. Before StartNetwork is called (by any
    // client), the backend will not make any connections or appear online.
    // This call blocks until the first connection attempt succeeds or fails,
    // and returns the current network status, but connection attempts will
    // continue unless this call returns an RPC error, or until StopNetwork
    // is called.
    rpc StartNetwork (StartNetworkRequest) returns (NetworkStatus);
    // Stop all network connections and go offline. Blocks until the network
    // has been taken offline, and returns the new network status.
    rpc StopNetwork (StopNetworkRequest) returns (NetworkStatus);

    // XXX Config (tor, etc)
    // XXX Protobuf supports maps now. That could also be useful for contact
    // update and such...

    // XXX Service status
    rpc GetIdentity (IdentityRequest) returns (Identity);

    // Query contacts and monitor for contact changes. The full contact list
    // is sent in POPULATE events, terminated by a POPULATE event with no
    // subject. Any new, removed, or modified contacts, including changes in
    // the state of contacts, are sent as ADD, UPDATE, or DELETE events until
    // the stream is closed.
    rpc MonitorContacts (MonitorContactsRequest) returns (stream ContactEvent);
    rpc AddContactRequest (ContactRequest) returns (Contact);
    rpc UpdateContact (Contact) returns (Contact);
    rpc DeleteContact (DeleteContactRequest) returns (DeleteContactReply);
    rpc AcceptInboundRequest (ContactRequest) returns (Contact);
    rpc RejectInboundRequest (ContactRequest) returns (RejectInboundRequestReply);

    // Open a stream to monitor messages in conversations with contacts.
    rpc MonitorConversations (MonitorConversationsRequest) returns (stream ConversationEvent);
    rpc SendMessage (Message) returns (Message);
    rpc MarkConversationRead (MarkConversationReadRequest) returns (Reply);
}

message Reply {
}

message ServerStatusRequest {
    int32 rpcVersion = 1;
}

message ServerStatusReply {
    int32 rpcVersion = 1;
    string serverVersion = 2;
}