#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <zlib.h>

int main(int argc, char** argv)
{
	if(argc >= 3)
	{
		bool useZip = false;

		if(argc == 4 && strcmp(argv[3], "-z") == 0) useZip = true;

		FILE* bin = fopen(argv[1], "rb");

		if(bin)
		{
			fseek(bin, 0, SEEK_END);
			int size = ftell(bin);
			fseek(bin, 0, SEEK_SET);

			unsigned char* buffer = (unsigned char*)malloc(size);

			if(buffer)
			{
				fread(buffer, size, 1, bin);
				fclose(bin);

				if(useZip)
				{
					unsigned char* output = (unsigned char*)malloc(size);

					if(output)
					{
						unsigned long sizeComp = size;
						if(compress2(output, &sizeComp, buffer, size, Z_BEST_COMPRESSION) != Z_OK)
						{
							printf("compression error\n");
						}
						else
						{
							size = sizeComp;
							memcpy(buffer, output, size);
						}

						free(output);						
					}
					else printf("memory error :(\n");
				}

				FILE* txt = fopen(argv[2], "wb");

				if(txt)
				{
					for(int i = 0; i < size; i++)
						fprintf(txt, "0x%02x, ", buffer[i]);

					fclose(txt);
				}
				else printf("cannot open bin file\n");

				free(buffer);
			}

		}
		else printf("cannot open bin file\n");
	}
	else printf("usage: bin2txt <bin> <txt>\n");

	return 0;
}