/*
  Copyright 2007-2011 David Robillard <http://drobilla.net>

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.

  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

  THIS SOFTWARE IS PROVIDED ``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 <locale.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "slv2/slv2.h"

#include "slv2-config.h"

SLV2Value event_class   = NULL;
SLV2Value control_class = NULL;
SLV2Value in_group_pred = NULL;
SLV2Value role_pred     = NULL;
SLV2Value preset_pred   = NULL;
SLV2Value title_pred    = NULL;

void
print_group(SLV2Plugin p, SLV2Value group, SLV2Value type, SLV2Value symbol)
{
	printf("\n\tGroup %s:\n", slv2_value_as_string(group));
	printf("\t\tType: %s\n", slv2_value_as_string(type));
	printf("\t\tSymbol: %s\n", slv2_value_as_string(symbol));
}

void
print_port(SLV2Plugin p, uint32_t index, float* mins, float* maxes, float* defaults)
{
	SLV2Port port = slv2_plugin_get_port_by_index(p, index);

	printf("\n\tPort %d:\n", index);

	if (!port) {
		printf("\t\tERROR: Illegal/nonexistent port\n");
		return;
	}

	bool first = true;

	SLV2Values classes = slv2_port_get_classes(p, port);
	printf("\t\tType:       ");
	SLV2_FOREACH(i, classes) {
		SLV2Value value = slv2_values_get(classes, i);
		if (!first) {
			printf("\n\t\t            ");
		}
		printf("%s", slv2_value_as_uri(value));
		first = false;
	}

	if (slv2_port_is_a(p, port, event_class)) {
		SLV2Values supported = slv2_port_get_value_by_qname(p, port,
			"lv2ev:supportsEvent");
		if (slv2_values_size(supported) > 0) {
			printf("\n\t\tSupported events:\n");
			SLV2_FOREACH(i, supported) {
				SLV2Value value = slv2_values_get(supported, i);
				printf("\t\t\t%s\n", slv2_value_as_uri(value));
			}
		}
		slv2_values_free(supported);
	}

	SLV2ScalePoints points = slv2_port_get_scale_points(p, port);
	if (points)
		printf("\n\t\tScale Points:\n");
	SLV2_FOREACH(i, points) {
		SLV2ScalePoint p = slv2_scale_points_get(points, i);
		printf("\t\t\t%s = \"%s\"\n",
				slv2_value_as_string(slv2_scale_point_get_value(p)),
				slv2_value_as_string(slv2_scale_point_get_label(p)));
	}
	slv2_scale_points_free(points);

	SLV2Value val = slv2_port_get_symbol(p, port);
	printf("\n\t\tSymbol:     %s\n", slv2_value_as_string(val));

	val = slv2_port_get_name(p, port);
	printf("\t\tName:       %s\n", slv2_value_as_string(val));
	slv2_value_free(val);

	SLV2Values groups = slv2_port_get_value(p, port, in_group_pred);
	if (slv2_values_size(groups) > 0)
		printf("\t\tGroup:      %s\n",
		       slv2_value_as_string(
			       slv2_values_get(groups, slv2_values_begin(groups))));
	slv2_values_free(groups);

	SLV2Values roles = slv2_port_get_value(p, port, role_pred);
	if (slv2_values_size(roles) > 0)
		printf("\t\tRole:       %s\n",
		       slv2_value_as_string(
			       slv2_values_get(roles, slv2_values_begin(roles))));
	slv2_values_free(roles);

	if (slv2_port_is_a(p, port, control_class)) {
		if (!isnan(mins[index]))
			printf("\t\tMinimum:    %f\n", mins[index]);
		if (!isnan(mins[index]))
			printf("\t\tMaximum:    %f\n", maxes[index]);
		if (!isnan(mins[index]))
			printf("\t\tDefault:    %f\n", defaults[index]);
	}

	SLV2Values properties = slv2_port_get_properties(p, port);
	if (slv2_values_size(properties) > 0)
		printf("\t\tProperties: ");
	first = true;
	SLV2_FOREACH(i, properties) {
		if (!first) {
			printf("\t\t            ");
		}
		printf("%s\n", slv2_value_as_uri(slv2_values_get(properties, i)));
		first = false;
	}
	if (slv2_values_size(properties) > 0)
		printf("\n");
	slv2_values_free(properties);
}

void
print_plugin(SLV2Plugin p)
{
	SLV2Value val = NULL;

	printf("%s\n\n", slv2_value_as_uri(slv2_plugin_get_uri(p)));

	val = slv2_plugin_get_name(p);
	if (val) {
		printf("\tName:              %s\n", slv2_value_as_string(val));
		slv2_value_free(val);
	}

	SLV2Value class_label = slv2_plugin_class_get_label(slv2_plugin_get_class(p));
	if (class_label) {
		printf("\tClass:             %s\n", slv2_value_as_string(class_label));
	}

	val = slv2_plugin_get_author_name(p);
	if (val) {
		printf("\tAuthor:            %s\n", slv2_value_as_string(val));
		slv2_value_free(val);
	}

	val = slv2_plugin_get_author_email(p);
	if (val) {
		printf("\tAuthor Email:      %s\n", slv2_value_as_uri(val));
		slv2_value_free(val);
	}

	val = slv2_plugin_get_author_homepage(p);
	if (val) {
		printf("\tAuthor Homepage:   %s\n", slv2_value_as_uri(val));
		slv2_value_free(val);
	}

	if (slv2_plugin_has_latency(p)) {
		uint32_t latency_port = slv2_plugin_get_latency_port_index(p);
		printf("\tHas latency:       yes, reported by port %d\n", latency_port);
	} else {
		printf("\tHas latency:       no\n");
	}

	printf("\tBundle:            %s\n",
	       slv2_value_as_uri(slv2_plugin_get_bundle_uri(p)));

	SLV2Value binary_uri = slv2_plugin_get_library_uri(p);
	if (binary_uri) {
		printf("\tBinary:            %s\n",
		       slv2_value_as_uri(slv2_plugin_get_library_uri(p)));
	}

	SLV2UIs uis = slv2_plugin_get_uis(p);
	if (slv2_values_size(uis) > 0) {
		printf("\tUI:                ");
		SLV2_FOREACH(i, uis) {
			SLV2UI ui = slv2_uis_get(uis, i);
			printf("%s\n", slv2_value_as_uri(slv2_ui_get_uri(ui)));

			const char* binary = slv2_value_as_uri(slv2_ui_get_binary_uri(ui));

			SLV2Values types = slv2_ui_get_classes(ui);
			SLV2_FOREACH(i, types) {
				printf("\t                       Class:  %s\n",
				       slv2_value_as_uri(slv2_values_get(types, i)));
			}

			if (binary)
				printf("\t                       Binary: %s\n", binary);

			printf("\t                       Bundle: %s\n",
			       slv2_value_as_uri(slv2_ui_get_bundle_uri(ui)));
		}
	}
	slv2_uis_free(uis);

	printf("\tData URIs:         ");
	SLV2Values data_uris = slv2_plugin_get_data_uris(p);
	bool first = true;
	SLV2_FOREACH(i, data_uris) {
		if (!first) {
			printf("\n\t                   ");
		}
		printf("%s", slv2_value_as_uri(slv2_values_get(data_uris, i)));
		first = false;
	}
	printf("\n");

	/* Required Features */

	SLV2Values features = slv2_plugin_get_required_features(p);
	if (features)
		printf("\tRequired Features: ");
	first = true;
	SLV2_FOREACH(i, features) {
		if (!first) {
			printf("\n\t                   ");
		}
		printf("%s", slv2_value_as_uri(slv2_values_get(features, i)));
		first = false;
	}
	if (features)
		printf("\n");
	slv2_values_free(features);

	/* Optional Features */

	features = slv2_plugin_get_optional_features(p);
	if (features)
		printf("\tOptional Features: ");
	first = true;
	SLV2_FOREACH(i, features) {
		if (!first) {
			printf("\n\t                   ");
		}
		printf("%s", slv2_value_as_uri(slv2_values_get(features, i)));
		first = false;
	}
	if (features)
		printf("\n");
	slv2_values_free(features);

	/* Presets */

	SLV2Values presets = slv2_plugin_get_value(p, preset_pred);
	if (presets)
		printf("\tPresets: \n");
	SLV2_FOREACH(i, presets) {
		SLV2Values titles = slv2_plugin_get_value_for_subject(
			p, slv2_values_get(presets, i), title_pred);
		if (titles) {
			SLV2Value title = slv2_values_get(titles, slv2_values_begin(titles));
			printf("\t         %s\n", slv2_value_as_string(title));
		}
	}

	/* Ports */

	const uint32_t num_ports = slv2_plugin_get_num_ports(p);
	float* mins     = calloc(num_ports, sizeof(float));
	float* maxes    = calloc(num_ports, sizeof(float));
	float* defaults = calloc(num_ports, sizeof(float));
	slv2_plugin_get_port_ranges_float(p, mins, maxes, defaults);

	for (uint32_t i = 0; i < num_ports; ++i)
		print_port(p, i, mins, maxes, defaults);

	free(mins);
	free(maxes);
	free(defaults);
}

void
print_version()
{
	printf("lv2_inspect (slv2) " SLV2_VERSION "\n");
	printf("Copyright (C) 2007-2011 David Robillard <http://drobilla.net>\n");
	printf("License: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>\n");
	printf("This is free software: you are free to change and redistribute it.\n");
	printf("There is NO WARRANTY, to the extent permitted by law.\n");
}

void
print_usage()
{
	printf("Usage: lv2_inspect PLUGIN_URI\n");
	printf("Show information about an installed LV2 plugin.\n");
}

int
main(int argc, char** argv)
{
	int ret = 0;
	setlocale (LC_ALL, "");

	SLV2World world = slv2_world_new();
	slv2_world_load_all(world);

#define NS_DC   "http://dublincore.org/documents/dcmi-namespace/"
#define NS_PG   "http://lv2plug.in/ns/ext/port-groups#"
#define NS_PSET "http://lv2plug.in/ns/ext/presets#"

	control_class = slv2_value_new_uri(world, SLV2_PORT_CLASS_CONTROL);
	event_class   = slv2_value_new_uri(world, SLV2_PORT_CLASS_EVENT);
	in_group_pred = slv2_value_new_uri(world, NS_PG "inGroup");
	preset_pred   = slv2_value_new_uri(world, NS_PSET "hasPreset");
	role_pred     = slv2_value_new_uri(world, NS_PG "role");
	title_pred    = slv2_value_new_uri(world, NS_DC "title");

	if (argc != 2) {
		print_usage();
		ret = 1;
		goto done;
	}

	if (!strcmp(argv[1], "--version")) {
		print_version();
		ret = 0;
		goto done;
	} else if (!strcmp(argv[1], "--help")) {
		print_usage();
		ret = 0;
		goto done;
	} else if (argv[1][0] == '-') {
		print_usage();
		ret = 2;
		goto done;
	}

	SLV2Plugins plugins = slv2_world_get_all_plugins(world);
	SLV2Value   uri     = slv2_value_new_uri(world, argv[1]);

	SLV2Plugin p = slv2_plugins_get_by_uri(plugins, uri);

	if (p) {
		print_plugin(p);
	} else {
		fprintf(stderr, "Plugin not found.\n");
	}

	ret = (p != NULL ? 0 : -1);

	slv2_value_free(uri);

done:
	slv2_value_free(title_pred);
	slv2_value_free(role_pred);
	slv2_value_free(preset_pred);
	slv2_value_free(in_group_pred);
	slv2_value_free(event_class);
	slv2_value_free(control_class);
	slv2_world_free(world);
	return ret;
}