/* voronoi.c
*
* Created by Rory Healy (healyr@student.unimelb.edu.au)
* 12th August 2021
* 
*/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "voronoi.h"

#define OPEN_FILE_ERROR "Error: Unable to open file %s\n"
#define NUM_FILE_ERROR "Error: Incorrect number of inputs (3 required).\n"
#define MALLOC_ERROR "Error: Cannot allocate memory.\n"

int main(int argc, char **argv) {
    FILE *dataset = NULL, *polygonData = NULL, *output = NULL;
    checkInputArgs(argc, argv, &dataset, &polygonData, &output);

    watchtower_t *watchtowers = (watchtower_t *) malloc(sizeof(watchtower_t));
    if (watchtowers == NULL) {
        fputs(MALLOC_ERROR, stderr);
        exit(EXIT_FAILURE);
    }

    char *buffer;
    size_t bufsize = 32;
    size_t characters;

    buffer = (char *)malloc(bufsize * sizeof(char));
    if( buffer == NULL)
    {
        perror("Unable to allocate buffer");
        exit(1);
    }

    printf("Type something: ");
    characters = getline(&buffer,&bufsize,stdin);
    printf("%zu characters were read.\n",characters);
    printf("You typed: '%s'\n",buffer);

    // Cleaning up data
    free(watchtowers);
    fclose(dataset);
    fclose(polygonData);
    fclose(output);
    return 0;
}

void checkInputArgs(int argc, char **argv, FILE **datasetFile, \
FILE **polygonFile, FILE **outputFile) {
    if (argc != 4) {
        fputs(NUM_FILE_ERROR, stderr);
        exit(EXIT_FAILURE);
    }

    *datasetFile = fopen(argv[1], "r");
    if (*datasetFile == NULL) {
        fprintf(stderr, OPEN_FILE_ERROR, argv[1]);
        exit(EXIT_FAILURE);
    }
    
    *polygonFile = fopen(argv[2], "r");
    if (*polygonFile == NULL) {
        fprintf(stderr, OPEN_FILE_ERROR, argv[2]);
        exit(EXIT_FAILURE);
    }

    *outputFile = fopen(argv[3], "w");
    if (*outputFile == NULL) {
        fprintf(stderr, OPEN_FILE_ERROR, argv[3]);
        exit(EXIT_FAILURE);
    }
}

void readWatchtowers(watchtower_t *watchtowers, FILE* datasetFile) {
    int numTowers = 1;
    
}