#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2021 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 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
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_STORAGE_SOURCE 1

#include "../../../Source/FileSystem/Linux/XdgDirectoryResolver.h"
#include "Nuclex/Storage/FileSystem/Path.h"
#include <gtest/gtest.h>

// There are a few unit tests used to verify behavior in edge cases.
// If you want them to run, add the following lines to your ~/.config/user-dirs.dirs file:
//
// XDG_UNITTEST1_DIR="$HOME/UnitTest" # Comment
// XDG_UNITTEST2_DIR="$HOME/UnitTest # No comment"
// XDG_UNITTEST3_DIR="$HOME/UnitTest # No comment, open quote
// XDG_UNITTEST4_DIR=$HOME/UnitTest # Comment, no quote
//

#if defined(NUCLEX_STORAGE_LINUX)

namespace Nuclex { namespace Storage { namespace FileSystem { namespace Linux {

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanFindHomeDirectory) {
    std::string homeDirectory = XdgDirectoryResolver::GetHomeDirectory();
    EXPECT_GT(homeDirectory.length(), 1);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanFindConfigHomeDirectory) {
    std::string configHomeDirectory = XdgDirectoryResolver::GetConfigHomeDirectory();
    EXPECT_GT(configHomeDirectory.length(), 3);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanFindDataHomeDirectory) {
    std::string dataHomeDirectory = XdgDirectoryResolver::GetDataHomeDirectory();
    EXPECT_GT(dataHomeDirectory.length(), 3);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanLookUpUserDirectory) {
    std::string path;

    bool found = XdgDirectoryResolver::GetUserDirectory(
      "XDG_DESKTOP_DIR", path
    );
    if(found) {
      EXPECT_GT(path.length(), 1);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanLookupUnitTestDirectory1) {
    std::string path;
    bool found = XdgDirectoryResolver::GetUserDirectory(
      "XDG_UNITTEST1_DIR", path
    );
    if(found) {
      std::string expected = Nuclex::Storage::FileSystem::Path::Join(
        XdgDirectoryResolver::GetHomeDirectory(), u8"UnitTest"
      );
      EXPECT_EQ(path, expected);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanLookupUnitTestDirectory2) {
    std::string path;
    bool found = XdgDirectoryResolver::GetUserDirectory(
      "XDG_UNITTEST2_DIR", path
    );
    if(found) {
      std::string expected = Nuclex::Storage::FileSystem::Path::Join(
        XdgDirectoryResolver::GetHomeDirectory(), u8"UnitTest # No comment"
      );
      EXPECT_EQ(path, expected);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanLookupUnitTestDirectory3) {
    std::string path;
    bool found = XdgDirectoryResolver::GetUserDirectory(
      "XDG_UNITTEST3_DIR", path
    );
    if(found) {
      std::string expected = Nuclex::Storage::FileSystem::Path::Join(
        XdgDirectoryResolver::GetHomeDirectory(), u8"UnitTest # No comment, open quote"
      );
      EXPECT_EQ(path, expected);
    }
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(XdgDirectoryResolverTest, CanLookupUnitTestDirectory4) {
    std::string path;
    bool found = XdgDirectoryResolver::GetUserDirectory(
      "XDG_UNITTEST4_DIR", path
    );
    if(found) {
      std::string expected = Nuclex::Storage::FileSystem::Path::Join(
        XdgDirectoryResolver::GetHomeDirectory(), u8"UnitTest"
      );
      EXPECT_EQ(path, expected);
    }
  }

  // ------------------------------------------------------------------------------------------- //

}}}} // namespace Nuclex::Storage::FileSystem::Linux

#endif // defined(NUCLEX_STORAGE_LINUX)