#include <stdio.h>
#include "linkedlist.h"
#include "ReadFile.h"
#include "QuickSort.h"
 
int main(int argc, char *argv[]) {

  /* Define a doubly-linked list.  */
  node *linkedList;

  switch (argc) {
    
    /* Print an error if no data file was specified. */
  case 1:
    printf("You must specify a textfile to read your data from\n");
    break;

    /* If only one file was specified, read into a list using ReadFile,
       then print to the screen using listPrint. */
  case 2:    
    printf("Argv[1]: %s\n", argv[1]);
    printf("What's wrong?\n");
    linkedList = readFile(argv[1]);
    printf("Time to do quickSort\n");
    linkedList = quickSort(linkedList);
    printf("Ahhhh.. done with quickSort\n");
    listPrint(linkedList);
    break;

    /* If two files were specified read from the first using readFile,
       then print to the second using writeFile. */
  case 3:
    printf("Argv[1]: %s\n", argv[1]);
    linkedList = readFile(argv[1]);
    printf("Time to do quickSort");
    linkedList = quickSort(linkedList);
    printf("Ahhhh.. done with quickSort");
    printf("The element is %s\n", linkedList->data);
    if (writeFile(argv[2], linkedList) == 1) {

      /* If there was a problem writing to the file, print an error. */
      printf("Error writing to file");
    }
    break;

    /* If some other number of arguments were specified, print an error. */
  default:
    printf("Wrong number of arguments\n");
  }
  return 0;
}