#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "sorting.h"

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

	//check arguments
  	if (argc != 5 || (argv[1][0] != 'i' && argv[1][0] != 's')){
		printf("usage: ./proj1 <i (insertion)|s (selection)> <input file> <sequence output file> <sorted output file>\n");
		return EXIT_FAILURE;
    }

	// values to be printed
	double numComparisons = 0;
	double numMoves = 0;

	// other declarations
	long * buffer = NULL;
	int size = 0;
	clock_t sortingClock = clock();
	double sortingTime = 0;
	clock_t ioClock = clock();
	double ioTime = 0;

	// read file into long * array
	ioClock = clock();
	buffer = Load_File(argv[2], &size);
	ioClock = clock() - ioClock;
	ioTime = ((double) ioClock) / CLOCKS_PER_SEC;

	// save sequence
	ioClock = clock();
	Print_Seq(argv[3], size);
	ioClock = clock() - ioClock;
	ioTime = ioTime + ((double) ioClock) / CLOCKS_PER_SEC;

	// sort depending on arguments
	if(argv[1][0] == 'i'){
		sortingClock = clock();
		Shell_Insertion_Sort(buffer, size, &numComparisons, &numMoves);
		sortingClock = clock() - sortingClock;
		sortingTime = ((double) sortingClock) / CLOCKS_PER_SEC;
	}
	if(argv[1][0] == 's'){
		sortingClock = clock();
		Shell_Selection_Sort(buffer, size, &numComparisons, &numMoves);
		sortingClock = clock() - sortingClock;
		sortingTime = ((double) sortingClock) / CLOCKS_PER_SEC;
	}

	// save sorted sequence
	ioClock = clock();
	Save_File(argv[4], buffer, size);
	ioClock = clock() - ioClock;
	ioTime = ioTime + ((double) ioClock) / CLOCKS_PER_SEC;

	// print values
	printf("\n");
	printf("Number of comparisons: %le\n", numComparisons);
	printf("Number of moves: %le\n", numMoves);
	printf("I/O time: %le\n", ioTime);
	printf("Sorting time: %le\n", sortingTime);
	printf("\n");


	// free memory
	free(buffer);

	// success
	return EXIT_SUCCESS;
}