/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

#pragma once

#include "FontAtlasGeneratorBase.hpp"
#include "Shelf.hpp"

namespace OpenVulkano::Scene
{
	struct FontPixelSizeConfig
	{
		float size = 24.f;
		float dpi = 72.f;
		bool isPixelSize = true;
	};

	class BitmapFontAtlasGenerator : public FontAtlasGeneratorBase
	{
	public:
		BitmapFontAtlasGenerator(FontPixelSizeConfig config = FontPixelSizeConfig()) : FontAtlasGeneratorBase(1), m_pixelSizeConfig(config) {}
		void GenerateAtlas(const std::string& fontFile, const std::set<uint32_t>& charset,
		                   const std::optional<std::string>& pngOutput = std::nullopt) override;
		void GenerateAtlas(const Array<char>& fontData, const std::set<uint32_t>& charset,
		                   const std::optional<std::string>& pngOutput = std::nullopt) override;
	private:
		void Generate(const std::variant<std::string, Array<char>>& source, const std::set<uint32_t>& chset, const std::optional<std::string>& pngOutput);
		std::pair<std::vector<GlyphForPacking>, double> InitGlyphsForPacking(const std::set<uint32_t>& chset, const FtFaceRecPtr& face);
	private:
		FontPixelSizeConfig m_pixelSizeConfig;
	};
}