/* $Id: inifile.c,v 1.1 1996/05/04 19:08:18 yoneyama Exp yoneyama $
 */
/************************************************************************
 * SameGame for X Window (sxsame)                                       *
 * Copyleft  (c) 1994-1996  Software Research Academy                   *
 ************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "sxsame.h"

static char *init_file = NULL;

int ReadInitFile(width, height, same_pic)
int *width;
int *height;
int *same_pic;
{
	FILE *fp;
	char *p;
	char tmpbuf[256];
	int x, y;
	int pic;

	*width = 20;
	*height = 10;
	*same_pic = 1;
	p = (char *)getenv("HOME");
	if(p == NULL) return(-1);
	if(init_file == NULL) init_file = (char *)malloc(strlen(p) + 11);
	if(init_file == NULL) return(-1);

	strcpy(init_file, p);
	strcat(init_file, "/.SameGame");
	fp = fopen(init_file, "r");
	if(fp == NULL) return(0);
	while(fgets(tmpbuf,256,fp)!=NULL)
	{
		for(p = tmpbuf;*p != 0 && *p == ' '; p++);
		if(strchr(p,'#')!=NULL) *(char *)strchr(p,'#') = '\0';
		if(strncmp(p, "Width", 5)==NULL)
		{
			sscanf(p+5,"%d",&x);
			if(x < MIN_WIDTH) x = MIN_WIDTH;
			if(x > MAX_WIDTH) x = MAX_WIDTH;
			*width = x;
		}
		else if(strncmp(p, "Height", 6)==NULL)
		{
			sscanf(p+6,"%d",&y);
			*height = y;
			if(y < MIN_HEIGHT) y = MIN_HEIGHT;
			if(y > MAX_HEIGHT) y = MAX_HEIGHT;
		}
		else if(strncmp(p, "Pictures", 8) == NULL)
		{
			sscanf(p+8,"%d",&pic);
			if(pic < 0) pic = 1;
			*same_pic = pic;
		}
	}

	fclose(fp);
	return(0);
}

int SaveInitFile(width, height, same_pic)
int width;
int height;
int same_pic;
{
	FILE *fp;

	if(init_file == NULL)
		return(0);
	fp = fopen(init_file, "w");
	if(fp == NULL) return(-1);
	fprintf(fp,"# SameGame\n");
	fprintf(fp,"Width  %3d\n", width);
	fprintf(fp,"Height %3d\n", height);
	if(same_pic < 0) same_pic = 1;
	fprintf(fp,"Pictures %d\n", same_pic);
	fclose(fp);
	return(0);
}