/**
 * @file commandLineParser.h
 * @brief Parses command line
 * @author Preston Shultz
 * Sources:
 *
 */

#ifndef COMMAND_LINE_PARSER_H
#define COMMAND_LINE_PARSER_H

#include <string>
#include <vector>

/**
 * @brief CommandLine Helper class
 *
 * Parse input arguments, sets input and output files
 * Lets user use commands with program
 *
 * @author Preston Shultz (shultzp1@my.erau.edu)
 */
class CLI {
public:
  /**
   * @brief Takes in argc and argv and converts it to vector
   *
   * CLI constructor
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  CLI(int argc, char **argv);

  /**
   * @brief Prints a list of commands that can be used
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  void PrintHelp() const;

  /**
   * @brief Returns input file
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  std::string GetInputFile() const { return input_file; }


  /**
   * @brief Returns if watchdog is enabled
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  bool WatchDogEnabled() {return watchdog_enabled;}

  /**
   * @brief Returns output file
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  std::string GetOutputFile() const { return output_file; }

private:

  /**
   * @brief Ensures the provided filename has a .markup extension
   *
   * @return true if file ends with .markup
   * @return false otherwise
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  static bool IsMarkupFile(const std::string &filename);


  /**
   * @brief Ensures the provided filename has a .html extension
   *
   * @return true if file ends with .html
   * @return false otherwise
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  static bool IsHtmlFile(const std::string &filename);

   /**
   * @brief Parses the commands
   *
   * @author Preston Shultz (shultzp1@my.erau.edu)
   */
  void ParseArgs(int argc, char** argv);

  std::string program_name;
  std::string input_file;
  std::string output_file = "";
  bool watchdog_enabled = false;
};

#endif