#include "cru/win/graph/direct/font.hpp"

#include "cru/win/exception.hpp"
#include "cru/win/graph/direct/exception.hpp"

#include <array>
#include <cassert>
#include <utility>

namespace cru::platform::graph::win::direct {
DWriteFont::DWriteFont(IDirectFactory* factory,
                       const std::wstring_view& font_family, float font_size) {
  assert(factory);
  std::array<wchar_t, LOCALE_NAME_MAX_LENGTH> buffer;
  if (!::GetUserDefaultLocaleName(buffer.data(),
                                  static_cast<int>(buffer.size())))
    throw platform::win::Win32Error(::GetLastError(), "Failed to get locale.");

  ThrowIfFailed(factory->GetDWriteFactory()->CreateTextFormat(
      font_family.data(), nullptr, DWRITE_FONT_WEIGHT_NORMAL,
      DWRITE_FONT_STYLE_NORMAL, DWRITE_FONT_STRETCH_NORMAL, font_size,
      buffer.data(), &text_format_));

  ThrowIfFailed(text_format_->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER));
  ThrowIfFailed(
      text_format_->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER));
}
}  // namespace cru::platform::graph::win::direct