main.cpp

#include "parsetree/ExecNode.cpp"
#include "parsetree/BackgroundNode.cpp"
#include "parsetree/SeparatorNode.cpp"
#include "parsetree/PipeNode.cpp"
#include "util/parser.cpp"
#include "config.h"
#include "util/Logger.h"

#include<string>
#include<sstream>
#include<vector>
#include<stdlib.h>
#include<iostream>
#include<unistd.h>
#include <sys/types.h>
#include<sys/wait.h>
#include<fstream>

#include <thread>
#include <chrono>


using namespace std;


int main() {
    Config* config = Config::get_instance(); 
    Logger *logger = Logger::get_instance();

    config->debug_mode = true;
    config->debug_color_enabled = false;
    ofstream log_file_stream("log.txt");
    logger->set_output_stream(&log_file_stream);

    logger->log("Shell Process started!");
    string input;
    int pid;
    while (true) {
        //* print shell prompt
        cout << config->prompt_color_code
            << "[myshell:" 
            << config->prompt_cwd_color_code
            << SystemCallWrapper::getcwd_wrapper() 
            << config->prompt_color_code
            << "]$ "
            << Config::PROMPT_COLOR_CODE[Config::PROMPT_COLOR::DEFAULT];

        cout.flush();
        getline(cin, input);
        if (input == "exit") 
            exit(0);
        
        try {
            //* parse command 
            ParseTree parse_tree = Parser::parse(input);
            
            if (config->debug_mode == true) {
                cout << config->debug_color << "[DEBUG]: parse tree: ";
                parse_tree.print();
                cout << Config::PROMPT_COLOR_CODE[Config::PROMPT_COLOR::DEFAULT] << endl;
            }

            pid = fork();
            if (pid == 0) {
                parse_tree.run();
            }

            // //* prevent memory leak
            // delete command;

            int status;
            waitpid(pid, &status, 0);

            logger->log("All child process finished");
        } catch (const runtime_error &error) {
            cout << "[Syntax Error]: " << error.what() << endl;
        }
    }
}

// ls -l|grep out >> test_output.txt