syntax = "proto3";

service Debug {
        rpc Health(HealthRequest) returns (HealthResponse) {};
        rpc Stats(StatsRequest) returns (StatsResponse) {};
        rpc Logs(LogRequest) returns (stream Record) {};
}

message HealthRequest {}

message HealthResponse {
	// default: ok
	string status = 1;
}

message StatsRequest {}

message StatsResponse {
	// unix timestamp
	uint64 started = 1;
	// in seconds
	uint64 uptime = 2;
	// in bytes
	uint64 memory = 3;
	// num threads
	uint64 threads = 4;
	// total gc in nanoseconds
	uint64 gc = 5;
}

// LogRequest requests service logs
message LogRequest {
        // count of records to request
        int64 count = 1;
        // relative time in seconds
        // before the current time
        // from which to show logs
        int64 since = 2;
        // stream records continuously
        bool stream = 3;
}

// Record is service log record
message Record {
        // timestamp of log record
        int64 timestamp = 1;
        // record value
        string value = 2;
        // record metadata
        map<string,string> metadata = 3;
}