#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <string.h>
#include <stdlib.h>

#include "liburaid.h"

#define PRINT_DEBUG

#define SOCKET_PATH "/tmp/uraid"

int uraid_socket;
struct sockaddr_un uraid_socket_addr;


/**
 * @brief Initializaes a connection to the URAID service
 * 
 */
URAID_status_t URAID_Init(){

    // Sets up socket details and the path of the socket
    memset(&uraid_socket_addr, 0, sizeof(struct sockaddr_un));
    uraid_socket_addr.sun_family = AF_UNIX;
    strncpy(uraid_socket_addr.sun_path, SOCKET_PATH, sizeof(uraid_socket_addr.sun_path) - 1);

    // Create a UNIX socket
    uraid_socket = socket(AF_UNIX, SOCK_STREAM, 0);
    if (uraid_socket == -1) {
        #ifdef PRINT_DEBUG
        perror("Error creating socket");
        #endif
        return URAID_STATUS_ERR;
    }

    // Connect to the socket
    if (connect(uraid_socket, (struct sockaddr *)&uraid_socket_addr, sizeof(struct sockaddr_un)) == -1) {
        #ifdef PRINT_DEBUG
        perror("Error connecting to server");
        #endif
        return URAID_STATUS_ERR;
    }

    return URAID_STATUS_OK;
}

typedef struct RAID_Frame
{
    int cmd;
    char filename[32];
    size_t buffer_size;
    char buffer[2048];
} RAID_Frame;

URAID_status_t URAID_Write(const char *label, const void *buffer, size_t size){
    
    size_t label_size = strlen(label);
    
    // ========== Command ========== 
    // Sends the command to the server
    RAID_Frame rf;  
    rf.cmd = URAID_CMD_WRITE;
    strcpy(rf.filename,label);
    rf.buffer_size = size;
    memcpy(rf.buffer,buffer,size);

    if (write(uraid_socket, &rf, sizeof(RAID_Frame)) == -1) {
        #ifdef PRINT_DEBUG
        perror("Error writing command to server");
        #endif
        return URAID_STATUS_ERR;
    }

    return URAID_STATUS_OK;
}



int main() {


    URAID_Init();

        
    char msg[] = "Hello this is the library";
    URAID_Write("file2",msg,strlen(msg));

    // Close the client socket
    close(uraid_socket);

    return 0;
}