interactive.c

#include "interactive.h"
#include "parse.h"  // Include for definitions of tokenize, parse, and related constants
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_INPUT_LENGTH 1024

int interactive_mode() {
    char input_line[MAX_INPUT_LENGTH];
    char tokens[MAX_NB_TOKENS][MAX_TOKEN_LEN];
    CommandSequence command_sequence;

    FILE *history_file = fopen("history.txt", "a"); 
    if (!history_file) {
        perror("Error opening the history file");
        return -1;
    }

    while (1) {
        printf("$ Shell ");  // Display the prompt
        if (fgets(input_line, MAX_INPUT_LENGTH, stdin) == NULL) {
            if (feof(stdin)) {
                printf("\n Exiting shell.\n");
                break;
            }
            perror("Error on reading input");
            continue;
        }

        input_line[strcspn(input_line, "\n")] = 0; // Remove newline

        // Write the command to history file
        fprintf(history_file, "%s\n", input_line);
        fflush(history_file);  // Flush the file stream

        int nb_tokens = tokenize(input_line, tokens); // Tokenize the input
        if (nb_tokens == -1) {
            fprintf(stderr, "Error: Failed to tokenize input\n");
            continue;
        }

        if (nb_tokens > 0 && strcmp(tokens[0], "exit") == 0) {
            printf("Exiting the shell, bye!.\n");
            break;
        }

        if (parse(tokens, nb_tokens, &command_sequence) == -1) {
            fprintf(stderr, "Error: Failed to parse command\n");
            continue;
        }

        if (launch_command(&command_sequence) == -1) {
            fprintf(stderr, "Error: Failed to execute command\n");
        }
    }

    fclose(history_file);  
    return 0;
}