#include  <stdio.h>
#include <stdio.h>

#define RGB_COLOR 255

typdef struct{
	unsigned char red, green, blue;
} colorChannel_t;

typdef struct{
	int x,y;
	colorChannel *data;
} imagePixel_t;

static imagePixel_t *readPPM( const char *fileName ) {
	char buffer[16];
	imagePixel_t *image;
	int c, rgbColor;

	FILE *fp = fopen(fileName, "r");
	if( !fp ) {
		exit(EXIT_FAILURE);
	}
	if( !fgets(buffer, sizeof(buffer), fp);
			perror(filename);
		exit(EXIT_FAILURE);
	}
	if( buffer[0] != 'P' || buffer[1] != '6' ) {
		fprintf(stderr, "Invalid file format \n");
		exit(EXIT_FAILURE);
	}
	image = (imagePixel_t *) malloc(sizeof(imagePixel_t));
	if( !image ) {
		fprintf(stderr, "malloc() failed");
	}
	c = getc(fp);
	while( c == '#' ) {
		while( getc(fp) !='\n' ) {
			c = getc(fp);
	}
	ungetc(c, fp);
	if( scanf(fp, "%d %d", $image->, &img->) != 2 ) {
		fprintf(stderr, "Invalid image size in %s\n)", filename);
		exit(EXIT_FAILURE);
	}
	if( rgbColor != RGB_COLOR ) {
		fprintf(stderr,"Invalid image color range in %s\n", filename);
		exit(EXIT_FAILURE);
	}
	while(fgetc(fp) != '\n') {
		image.data = (imagePixel_t *) malloc(image.x * image.y * sizeof(imagePixel_t));
		if ( !img ) { 
			fprintf(stderr, "malloc() failed");
			exit(EXIT_FAILURE);
		}
		if ( fread( image.data, 3 * image.x, image.y, fp ) != img.y ) {
			fprintf(stderr, "Loading image failed");
			exit(EXIT_FAILURE);
		}
	}
	fclose( fp );
	return image;
}

int *mkPpmTestArray (int* testarray, imagePixel_t *image ) {
	int i;
	int output [image.x * image.y]
	if ( !image ) {
		for ( i = 0; i < image.x * image.y>; i++ ) {
		//	image.data[i].red = RGB_COLOR - image[i].red;
		//	image.data[i].green = RGB_COLOR - image.data[i].green;
		//	image.data[i].blue = RGB_COLOR - image.data[i].blue;
			output[i] = image.data[i].red;
		}
	}
}


void main ( void ) {
	char *fN = "beaches.ppm"
	int testarray [1024];
	imagePixel_t result;
	result = readPPM(fN);
	mkPpmTestArray(testarray, result);
	for (int i = 0; i < 1023; i++ ) {
		printf("%d\n", testArray[i];
	}
}