/*
  Copyright 2007-2019 David Robillard <http://drobilla.net>

  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 "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include "lilv_config.h"

#include "lilv/lilv.h"

#include <stdbool.h>
#include <stdio.h>
#include <string.h>

static void
list_plugins(const LilvPlugins* list, bool show_names)
{
	LILV_FOREACH(plugins, i, list) {
		const LilvPlugin* p = lilv_plugins_get(list, i);
		if (show_names) {
			LilvNode* n = lilv_plugin_get_name(p);
			printf("%s\n", lilv_node_as_string(n));
			lilv_node_free(n);
		} else {
			printf("%s\n", lilv_node_as_uri(lilv_plugin_get_uri(p)));
		}
	}
}

static void
print_version(void)
{
	printf(
		"lv2ls (lilv) " LILV_VERSION "\n"
		"Copyright 2007-2019 David Robillard <http://drobilla.net>\n"
		"License: <http://www.opensource.org/licenses/isc-license>\n"
		"This is free software: you are free to change and redistribute it.\n"
		"There is NO WARRANTY, to the extent permitted by law.\n");
}

static void
print_usage(void)
{
	printf("Usage: lv2ls [OPTION]...\n");
	printf("List all installed LV2 plugins.\n");
	printf("\n");
	printf("  -n, --names    Show names instead of URIs\n");
	printf("  --help         Display this help and exit\n");
	printf("  --version      Display version information and exit\n");
	printf("\n");
	printf("The environment variable LV2_PATH can be used to control where\n");
	printf("this (and all other lilv based LV2 hosts) will search for plugins.\n");
}

int
main(int argc, char** argv)
{
	bool show_names = false;
	for (int i = 1; i < argc; ++i) {
		if (!strcmp(argv[i], "--names") || !strcmp(argv[i], "-n")) {
			show_names = true;
		} else if (!strcmp(argv[i], "--version")) {
			print_version();
			return 0;
		} else if (!strcmp(argv[i], "--help")) {
			print_usage();
			return 0;
		} else {
			print_usage();
			return 1;
		}
	}

	LilvWorld* world = lilv_world_new();
	lilv_world_load_all(world);

	const LilvPlugins* plugins = lilv_world_get_all_plugins(world);

	list_plugins(plugins, show_names);

	lilv_world_free(world);

	return 0;
}