#include "catch.hpp"

#include "language_packages.h"

#if BUILD_CXX_LANGUAGE_PACKAGE

#	include "IncludeDirective.h"
#	include "IncludeProcessing.h"
#	include "TextAccess.h"
#	include "utility.h"

TEST_CASE("include detection finds include with quotes")
{
	std::vector<IncludeDirective> includeDirectives = IncludeProcessing::getIncludeDirectives(
		TextAccess::createFromString("#include \"foo.h\"", FilePath(L"foo.cpp")));

	REQUIRE(!includeDirectives.empty());

	if (!includeDirectives.empty())
	{
		REQUIRE(L"foo.h" == includeDirectives.front().getIncludedFile().wstr());
		REQUIRE(L"foo.cpp" == includeDirectives.front().getIncludingFile().wstr());
	}
}

TEST_CASE("include detection finds include with angle brackets")
{
	std::vector<IncludeDirective> includeDirectives = IncludeProcessing::getIncludeDirectives(
		TextAccess::createFromString("#include <foo.h>", FilePath(L"foo.cpp")));

	REQUIRE(!includeDirectives.empty());

	if (!includeDirectives.empty())
	{
		REQUIRE(L"foo.h" == includeDirectives.front().getIncludedFile().wstr());
		REQUIRE(L"foo.cpp" == includeDirectives.front().getIncludingFile().wstr());
	}
}
TEST_CASE("include detection finds include with quotes and space before keyword")
{
	std::vector<IncludeDirective> includeDirectives = IncludeProcessing::getIncludeDirectives(
		TextAccess::createFromString("# include \"foo.h\"", FilePath(L"foo.cpp")));

	REQUIRE(!includeDirectives.empty());

	if (!includeDirectives.empty())
	{
		REQUIRE(L"foo.h" == includeDirectives.front().getIncludedFile().wstr());
		REQUIRE(L"foo.cpp" == includeDirectives.front().getIncludingFile().wstr());
	}
}

TEST_CASE("include detection does not find include in empty file")
{
	REQUIRE(IncludeProcessing::getIncludeDirectives(TextAccess::createFromString("")).empty());
}

TEST_CASE("include detection does not find include in file without preprocessor directive")
{
	REQUIRE(IncludeProcessing::getIncludeDirectives(TextAccess::createFromString("foo")).empty());
}

TEST_CASE("include detection does not find include in file without include preprocessor directive")
{
	REQUIRE(
		IncludeProcessing::getIncludeDirectives(TextAccess::createFromString("#ifdef xx\n#endif"))
			.empty());
}

TEST_CASE("header search path detection does not find path relative to including file")
{
	std::vector<FilePath> headerSearchDirectories = utility::toVector(
		IncludeProcessing::getHeaderSearchDirectories(
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_does_not_find_path_relative_to_including_"
					  L"file/a.cpp")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_does_not_find_path_relative_to_including_"
					  L"file")},
			{},
			1,
			[](float) {}));

	REQUIRE(headerSearchDirectories.empty());
}

TEST_CASE("header search path detection finds path inside sub directory")
{
	std::vector<FilePath> headerSearchDirectories = utility::toVector(
		IncludeProcessing::getHeaderSearchDirectories(
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_inside_sub_directory/a.cpp")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_inside_sub_directory")},
			{},
			1,
			[](float) {}));

	REQUIRE(utility::containsElement<FilePath>(
		headerSearchDirectories,
		FilePath(L"data/CxxIncludeProcessingTestSuite/"
				 L"test_header_search_path_detection_finds_path_inside_sub_directory/include")
			.makeAbsolute()));
}

TEST_CASE("header search path detection finds path relative to sub directory")
{
	std::vector<FilePath> headerSearchDirectories = utility::toVector(
		IncludeProcessing::getHeaderSearchDirectories(
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_relative_to_sub_directory/"
					  L"a.cpp")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_relative_to_sub_directory")},
			{},
			1,
			[](float) {}));

	REQUIRE(utility::containsElement<FilePath>(
		headerSearchDirectories,
		FilePath(L"data/CxxIncludeProcessingTestSuite/"
				 L"test_header_search_path_detection_finds_path_relative_to_sub_directory/include")
			.makeAbsolute()));
}

TEST_CASE("header search path detection finds path included in header search path")
{
	std::vector<FilePath> headerSearchDirectories = utility::toVector(
		IncludeProcessing::getHeaderSearchDirectories(
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_included_in_header_search_"
					  L"path/a.cpp")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_included_in_header_search_"
					  L"path/include_b")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_included_in_header_search_"
					  L"path/include_a")},
			1,
			[](float) {}));


	REQUIRE(utility::containsElement<FilePath>(
		headerSearchDirectories,
		FilePath(L"data/CxxIncludeProcessingTestSuite/"
				 L"test_header_search_path_detection_finds_path_included_in_header_search_path/"
				 L"include_b")
			.makeAbsolute()));
}

TEST_CASE("header search path detection finds path included in future header search path")
{
	std::vector<FilePath> headerSearchDirectories = utility::toVector(
		IncludeProcessing::getHeaderSearchDirectories(
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_included_in_future_header_"
					  L"search_path/a.cpp")},
			{FilePath(L"data/CxxIncludeProcessingTestSuite/"
					  L"test_header_search_path_detection_finds_path_included_in_future_header_"
					  L"search_path")},
			{},
			1,
			[](float) {}));

	REQUIRE(utility::containsElement<FilePath>(
		headerSearchDirectories,
		FilePath(L"data/CxxIncludeProcessingTestSuite/"
				 L"test_header_search_path_detection_finds_path_included_in_future_header_search_"
				 L"path/include_a")
			.makeAbsolute()));
	REQUIRE(utility::containsElement<FilePath>(
		headerSearchDirectories,
		FilePath(L"data/CxxIncludeProcessingTestSuite/"
				 L"test_header_search_path_detection_finds_path_included_in_future_header_search_"
				 L"path/include_b")
			.makeAbsolute()));
}

#endif	  // BUILD_CXX_LANGUAGE_PACKAGE