/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This code is based on the original source code of Lord Avalot d'Argent version 1.3.
 * Copyright (c) 1994-1995 Mike, Mark and Thomas Thurman.
 */

namespace Avalanche {

const char months[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
const string ednaid = string("TT") + '\261' + '\36' + '\1' + '\113' + '\261' + '\231' + '\261';

struct edhead { /* Edna header */
	/* This header starts at byte offset 177 in the .ASG file. */
	array<1, 9, char> id;   /* signature */
	word revision; /* EDNA revision, here 2 (1=dna256) */
	varying_string<50> game; /* Long name, eg Lord Avalot D'Argent */
	varying_string<15> shortname; /* Short name, eg Avalot */
	word number; /* Game's code number, here 2 */
	word ver; /* Version number as integer (eg 1.00 = 100) */
	varying_string<5> verstr; /* Vernum as string (eg 1.00 = "1.00" */
	varying_string<12> filename; /* Filename, eg AVALOT.EXE */
	byte os; /* Saving OS (here 1=DOS. See below for others.) */

	/* Info on this particular game */

	varying_string<8> fn; /* Filename (not extension ('cos that's .ASG)) */
	byte d, m; /* D, M, Y are the Day, Month & Year this game was... */
	word y;  /* ...saved on. */
	varying_string<40> desc; /* Description of game (same as in Avaricius!) */
	word len; /* Length of DNA (it's not going to be above 65535!) */

	/* Quick reference & miscellaneous */

	word saves; /* no. of times this game has been saved */
	integer cash; /* contents of your wallet in numerical form */
	varying_string<20> money; /* ditto in string form (eg 5/-, or 1 denarius)*/
	word points; /* your score */

	/* DNA values follow, then footer (which is ignored) */
};
/* Possible values of edhead.os:
   1 = DOS        4 = Mac
   2 = Windows    5 = Amiga
   3 = OS/2       6 = ST */

untyped_file f;
byte fv;
array<1, 255, word> dna256;
boolean ok;
edhead e;

void info(string x) {     /* info on .ASG files */
	varying_string<40> describe;
	assign(f, x);
	/*$I-*/ reset(f, 1);
	seek(f, 47);
	blockread(f, describe, 40);
	blockread(f, dna256, sizeof(dna256));
	close(f); /*$I+*/
	e.revision = 1;
	game = "Denarius Avaricius Sextus";
	shortname = "Avaricius";
	number = 1;
	verstr = "[?]";
	filename = "AVVY.EXE";
	os = 1;
	fn = x;
	d = dna256[7];
	m = dna256[8];
	y = dna256[9];
	desc = describe;
	len = 512;
	saves = dna256[6];
	/*money:string[20]; { ditto in string form (eg 5/-, or 1 denarius)*/
	/*points:word; { your score */
}

int main(int argc, const char *argv[]) {
	pio_initialize(argc, argv);
	info("tt.asg");

	output << "Filename: " << x << NL;
	output << "Description: " << desc << NL;
	output << "Cash: " << dna256[30] << NL;
	output << "Score: " << dna256[36] << NL;
	output << "Date: " << dna256[7] << ' ' << copy(months, dna256[8] * 3 - 2, 3) << ' ' << dna256[9] << NL;
	output << "Number of saves: " << dna256[6] << NL;
	return EXIT_SUCCESS;
}

} // End of namespace Avalanche.