#include "include/server.h"

int main(int argc, char *argv[]) {
    int fd;
    if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
        printSystemError("Server: socket()");
       
    int opt = 1;
    if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)))
        printSystemError("Server: setsockopt()");

    struct sockaddr_in address;
    address.sin_family = AF_INET;
    // address.sin_addr.s_addr = INADDR_ANY;
    address.sin_addr.s_addr = inet_addr(ADDRESS);
    address.sin_port = htons(PORT);
       
    if (bind(fd, (struct sockaddr *) &address, sizeof(address)) < 0) 
        printSystemError("Server: bind()");

    if (listen(fd, MAX_PEND_REQ) < 0)
        printSystemError("Server: listen()");

    int addrlen = sizeof(address), fdAux;
    if ((fdAux = accept(fd, (struct sockaddr *) &address, (socklen_t *) &addrlen)) < 0)
        printSystemError("Server: accept()");

    startChallenge(fdAux);

    close(fdAux);
    close(fd);

    return EXIT_SUCCESS;
}

void startChallenge(int fd) {
    FILE * stream;
    if ((stream = fdopen(fd, "r")) == NULL)
        printSystemError("Server: fdopen()");
    
    int challengeCount = 0;
    char * output = NULL;

    srand(time(NULL));
    while (challengeCount < MAX_CHALLENGES) {
        challenge_t currentChallenge = challenges[challengeCount];
        printf("\033[1;1H\033[2J");
        if (genChallenge(stream, &output, currentChallenge)) {
            challengeCount++;
        }
        else {
            printf("Respuesta incorrecta: %s\n", output);
            sleep(TIME_SLEEP);
        }
    }

    //fclose(stream);
    free(output);
    free(stream);

    return;
}