#ifndef FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACESTREAM_H_
#define FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACESTREAM_H_

#include "ServiceInterfaceBuffer.h"
#include "fsfw/FSFW.h"

#if FSFW_CPP_OSTREAM_ENABLED == 1

#include <cstdio>
#include <iostream>

/**
 * Generic service interface stream which can be used like std::cout or
 * std::cerr but has additional capability. Add preamble and timestamp
 * to output. Can be run in buffered or unbuffered mode.
 */
class ServiceInterfaceStream : public std::ostream {
 public:
  /**
   * This constructor is used by specifying the preamble message.
   * Optionally, the output can be directed to stderr and a CR character
   * can be prepended to the preamble.
   * @param setMessage message of preamble.
   * @param addCrToPreamble Useful for applications like Puttty.
   * @param buffered specify whether to use buffered mode.
   * @param errStream specify which output stream to use (stderr or stdout).
   */
  ServiceInterfaceStream(std::string setMessage, bool addCrToPreamble = false, bool buffered = true,
                         bool errStream = false, uint16_t port = 1234);

  //! An inactive stream will not print anything.
  void setActive(bool);

  /**
   * This can be used to retrieve the preamble in case it should be printed in
   * the unbuffered mode.
   * @return Preamle consisting of log message and timestamp.
   */
  std::string* getPreamble();

  /**
   * Can be used to determine if the stream was configured to add CR characters in addition
   * to newline characters.
   * @return
   */
  bool crAdditionEnabled() const;

#if FSFW_COLORED_OUTPUT == 1
  void setAsciiColorPrefix(std::string asciiColorCode);
#endif

 protected:
  ServiceInterfaceBuffer streambuf;
};

// Forward declaration of interface streams. These should be instantiated in
// main. They can then be used like std::cout or std::cerr.
namespace sif {
extern ServiceInterfaceStream debug;
extern ServiceInterfaceStream info;
extern ServiceInterfaceStream warning;
extern ServiceInterfaceStream error;
}  // namespace sif

#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */

#endif /* FRAMEWORK_SERVICEINTERFACE_SERVICEINTERFACESTREAM_H_ */