/*
** Copyright (C) 2020 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Lesser General Public License
**  as published by the Free Software Foundation; either version 2.1
**  of the License, or (at your option) any later version.
**
**  This library 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
**  Lesser General Public License for more details.
**
**  You should have received a copy of the GNU Lesser General Public
**  License along with this library; if not, write to the Free
**  Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
**  02110-1301, USA.
*/

#include <vector>
#include <glib.h>

#include <iostream>
#include <sstream>

#include "mu-command-parser.hh"
#include "mu-utils.hh"

using namespace Mu;

static void
test_param_getters()
{
	const auto sexp{Sexp::make_parse(R"((foo :bar 123 :cuux "456" :boo nil :bah true))")};

	if (g_test_verbose())
		std::cout << sexp << "\n";

	g_assert_cmpint(Command::get_int_or(sexp.list(), ":bar"), ==, 123);
	assert_equal(Command::get_string_or(sexp.list(), ":bra", "bla"), "bla");
	assert_equal(Command::get_string_or(sexp.list(), ":cuux"), "456");

	g_assert_true(Command::get_bool_or(sexp.list(), ":boo") == false);
	g_assert_true(Command::get_bool_or(sexp.list(), ":bah") == true);
}

static bool
call(const Command::CommandMap& cmap, const std::string& str)
try {
	const auto sexp{Sexp::make_parse(str)};
	invoke(cmap, sexp);

	return true;

} catch (const Error& err) {
	g_warning("%s", err.what());
	return false;
}

static void
test_command()
{
	using namespace Command;
	allow_warnings();

	CommandMap cmap;

	cmap.emplace(
	    "my-command",
	    CommandInfo{ArgMap{{":param1", ArgInfo{Sexp::Type::String, true, "some string"}},
	                       {":param2", ArgInfo{Sexp::Type::Number, false, "some integer"}}},
	                "My command,",
	                {}});

	g_assert_true(call(cmap, "(my-command :param1 \"hello\")"));
	g_assert_true(call(cmap, "(my-command :param1 \"hello\" :param2 123)"));

	g_assert_false(call(cmap, "(my-command :param1 \"hello\" :param2 123 :param3 xxx)"));
}

static void
test_command2()
{
	using namespace Command;
	allow_warnings();

	CommandMap cmap;
	cmap.emplace("bla",
	             CommandInfo{ArgMap{
				     {":foo", ArgInfo{Sexp::Type::Number, false, "foo"}},
				     {":bar", ArgInfo{Sexp::Type::String, false, "bar"}},
				 },
	                         "yeah",
	                         [&](const auto& params) {}});

	g_assert_true(call(cmap, "(bla :foo nil)"));
	g_assert_false(call(cmap, "(bla :foo nil :bla nil)"));
}

static void
test_command_fail()
{
	using namespace Command;

	allow_warnings();

	CommandMap cmap;

	cmap.emplace(
	    "my-command",
	    CommandInfo{ArgMap{{":param1", ArgInfo{Sexp::Type::String, true, "some string"}},
	                       {":param2", ArgInfo{Sexp::Type::Number, false, "some integer"}}},
	                "My command,",
	                {}});

	g_assert_false(call(cmap, "(my-command)"));
	g_assert_false(call(cmap, "(my-command2)"));
	g_assert_false(call(cmap, "(my-command :param1 123 :param2 123)"));
	g_assert_false(call(cmap, "(my-command :param1 \"hello\" :param2 \"123\")"));
}

static void
black_hole()
{
}

int
main(int argc, char* argv[])
try {
	g_test_init(&argc, &argv, NULL);

	g_test_add_func("/utils/command-parser/param-getters", test_param_getters);
	g_test_add_func("/utils/command-parser/command", test_command);
	g_test_add_func("/utils/command-parser/command2", test_command2);
	g_test_add_func("/utils/command-parser/command-fail", test_command_fail);

	g_log_set_handler(
	    NULL,
	    (GLogLevelFlags)(G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL | G_LOG_FLAG_RECURSION),
	    (GLogFunc)black_hole,
	    NULL);

	return g_test_run();

} catch (const std::runtime_error& re) {
	std::cerr << re.what() << "\n";
	return 1;
}