#include <stdio.h>
#include <stdlib.h>
#include "lz77.h"
#include "fileutils.h"

void process_one_file(int  f, int d, int n) {
    char nom_du_fichier[100];
    long script_position, true_length;
    int i;
    int  f_out;
    
    if (filesize(f) == 24) return;
    
    sprintf(nom_du_fichier, "xeno_d%d/ROOMS/%04i", d, n);
    MKDIR(nom_du_fichier);

    i = 7;
//    for (i = 0; i < 9; i++) {
//	fprintf(stderr, "  Processing part %i\n", i);
	sprintf(nom_du_fichier, "xeno_d%d/ROOMS/%04i/script.comp", d, n);
//	sprintf(nom_du_fichier, "xeno_d%d/ROOMS/%04i/part-%i", d, n, i);
	f_out = open(nom_du_fichier, O_WRONLY | O_TRUNC | O_CREAT, 00644);
	lseek(f, 0x130 + i * 4, SEEK_SET);
	read(f, &script_position, 4);
	lseek(f, 0x10c + i * 4, SEEK_SET);
	read(f, &true_length, 4);
	lseek(f, script_position, SEEK_SET);
	lz77_decomp(f, f_out, true_length);
//	if (i == 7) {
//    	    fseek(f_out, 0, SEEK_SET);
//	    fread(&true_length, 4, 1, f_out);
//	    fprintf(stderr, "      (seems to be the script number %i)\n", true_length);
//	}
	close(f_out);
//    }
}

int main(void)
{
    int f_script_comp;
    int i;
    int num = 0;
    char nom_du_fichier[100];

    for (i = 384; i < 1844; i = i + 2) {
	fprintf(stderr, "CD 1 - File %d -> Script %d\n", i, num);
	sprintf(nom_du_fichier, "xeno_d1/ROOMS/%04d.out", i);
	f_script_comp = open(nom_du_fichier, O_RDONLY);
	
	process_one_file(f_script_comp, 1, num);

	close(f_script_comp);
	num++;
    }

    num = 0;

    for (i = 379; i < 1838; i = i + 2) {
	fprintf(stderr, "CD 2 - File %d -> Script %d\n", i, num);
	sprintf(nom_du_fichier, "xeno_d2/ROOMS/%04d.out", i);
	f_script_comp = open(nom_du_fichier, O_RDONLY);
	
	process_one_file(f_script_comp, 2, num);

	close(f_script_comp);
	num++;
    }
    fprintf(stderr, "Done !\n");
}