#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <signal.h>
#include <ctype.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <unistd.h>

#define PORT 2002
#define LENGTH 512


void error(const char *msg)
{
    perror(msg);
    exit(1);
}

int main(int argc, char *argv[])
{

    printf("ddd");
    /* Variable Definition */
    int sockfd;
    int nsockfd;
    char revbuf[LENGTH];
    struct sockaddr_in remote_addr;

    /* Get the Socket file descriptor */
    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
        error("ERROR: Failed to obtain Socket Descriptor!\n");
    }

    /* Fill the socket address struct */
    remote_addr.sin_family = AF_INET;
    remote_addr.sin_port = htons(PORT);
    remote_addr.sin_addr.s_addr = inet_addr("150.254.79.251");
    bzero(&(remote_addr.sin_zero), 8);
    printf("ddddd");
    /* Try to connect the remote */
    if (connect(sockfd, (struct sockaddr *)&remote_addr, sizeof(struct sockaddr)) == -1)
    {
        error("ERROR: Failed to connect to the host!\n");
    }
    else {
        printf("[Client] Connected to server at port %d...ok!\n", PORT);
    }
   // while(1) {
        //czyść bufor memset
        //czytaj komendy
        //podzial na tokeny strtok
        //if pierwszy token to "send" to wywołaj f send()
        //else if pierwszy "listFiles" to wywolaj f
        //dopóki wczytany string != "QUIT"
        //a na "QUIT" break i zamknięcie połączenia
    //}

    /* Send File to Server */
    //if(!fork())
    //{
        /*char* fs_name = "/home/aryan/Desktop/quotidiani.txt"; //to variable
        char sdbuf[LENGTH];
        printf("[Client] Sending %s to the Server...", fs_name);
        FILE *fs = fopen(fs_name, "r");
        if(fs == NULL)
        {
            printf("ERROR: File %s not found.\n", fs_name);
            exit(1);
        }

        bzero(sdbuf, LENGTH);
        int fs_block_sz;
        //int success = 0;
        while((fs_block_sz = fread(sdbuf, sizeof(char), LENGTH, fs))>0)
        {
            if(send(sockfd, sdbuf, fs_block_sz, 0) < 0)
            {
                printf("ERROR: Failed to send file %s.\n", fs_name);
                break;
            }
            bzero(sdbuf, LENGTH);
        }
        printf("Ok File %s from Client was Sent!\n", fs_name);
        //success = 1;
    //}

    /* Receive File from Server */
    /*printf("[Client] Receiveing file from Server and saving it as final.txt...");
    char* fr_name = "/home/aryan/Desktop/progetto/final.txt"; //to variable
    FILE *fr = fopen(fr_name, "a");
    if(fr == NULL)
        printf("File %s Cannot be opened.\n", fr_name);
    else
    {
        bzero(revbuf, LENGTH);
        int fr_block_sz = 0;
        int success = 0;
        //while(success == 0)
        //{
            while(fr_block_sz = recv(sockfd, revbuf, LENGTH, 0))
            {
                if(fr_block_sz < 0)
                {
                    error("Receive file error.\n");
                }
                int write_sz = fwrite(revbuf, sizeof(char), fr_block_sz, fr);
                if(write_sz < fr_block_sz)
                {
                    error("File write failed.\n");
                }
                else if(fr_block_sz)
                {
                    break;
                }
                bzero(revbuf, LENGTH);
            }
            printf("Ok received from server!\n");
            success = 1;
            fclose(fr);
        //}
    }*/
    close (sockfd);
    printf("[Client] Connection lost.\n");
    return (0);
}