/** 
 * @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 Runs Commands
     *
     * @author Preston Shultz (shultzp1@my.erau.edu)
     */
    void RunCommands();

    /**
     * @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 inputFile;}

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

private:

    /**
     * @brief Ensures the provided filename has a .markup extension
     *
     * @param filename The file name to validate
     * @return true if file ends with .markup
     * @return false otherwise
     * @author Preston Shultz (shultzp1@my.erau.edu)
     */
    static bool IsMarkupFile(const std::string& filename);
    
    std::string programName;
    std::vector<std::string> args;
    std::string inputFile;
    std::string outputFile;
};

#endif