/*
 *  Empire - A multi-player, client/server Internet based war game.
 *  Copyright (C) 1986-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
 *                Ken Stevens, Steve McClure, Markus Armbruster
 *
 *  Empire 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 *  ---
 *
 *  See files README, COPYING and CREDITS in the root of the source
 *  tree for related information and legal notices.  It is expected
 *  that future projects/authors will amend these files as needed.
 *
 *  ---
 *
 *  army.c: Add units to an army
 *
 *  Known contributors to this file:
 *
 */

#include <config.h>

#include <ctype.h>
#include "commands.h"
#include "land.h"

int
c_army(void)
{
    struct lndstr land;
    int count;
    char *cp;
    char c;
    struct nstr_item nstr;
    struct nstr_item ni;
    struct lndstr land2;
    char buf[1024];

    cp = getstarg(player->argp[1], "army? ", buf);
    if (!cp)
	return RET_SYN;
    c = *cp;
    if (!isalpha(c) && c != '~') {
	pr("Specify army, (1 alpha char or '~')\n");
	return RET_SYN;
    }
    if (c == '~')
	c = 0;
    if (!snxtitem(&nstr, EF_LAND, player->argp[2], NULL))
	return RET_SYN;
    count = 0;
    while (nxtitem(&nstr, &land)) {
	if (!player->owner)
	    continue;
	if (land.lnd_army == c)
	    continue;
	land.lnd_rflags &= ~RET_GROUP;
	snxtitem_group(&ni, EF_LAND, c);
	while (nxtitem(&ni, &land2)) {
	    if ((land2.lnd_rflags & RET_GROUP) == 0)
		continue;
	    if (land2.lnd_x == land.lnd_x && land2.lnd_y == land.lnd_y) {
		memcpy(land.lnd_rpath, land2.lnd_rpath,
		       sizeof(land.lnd_rpath));
		land.lnd_rflags = land2.lnd_rflags;
		break;
	    }
	}
	land.lnd_army = c;
	putland(land.lnd_uid, &land);
	count++;
    }
    pr("%d unit%s added to army `%1.1s'\n", count, splur(count), &c);
    return RET_OK;
}