/*
 * pkg.c
 * main() routine and basic dependency solving...
 *
 * Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org>.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "pkg.h"

pkg_t *
pkg_find(const char *name)
{
	char locbuf[BUFSIZ];

	snprintf(locbuf, sizeof locbuf, "/usr/lib/pkgconfig/%s.pc", name);

	return parse_file(locbuf);
}

int main(int argc, const char *argv[])
{
	pkg_t *pkg;

	pkg = pkg_find(argv[1]);
	if (pkg)
	{
		pkg_dependency_t *node;

		foreach_list_entry(pkg->requires, node)
		{
			pkg_t *pkgdep;

			pkgdep = pkg_find(node->package);
			if (pkgdep == NULL)
			{
				printf("dependency '%s' not satisfied\n", node->package);
				return -1;
			}

			printf("%s: {%s} {%s}\n", pkgdep->realname, pkgdep->cflags, pkgdep->libs);
		}

		printf("%s: {%s} {%s}\n", pkg->realname, pkg->cflags, pkg->libs);
	}
	else
	{
		printf("%s not found\n", argv[1]);
		return -1;
	}

	return 0;
}