package net.minecraft.client.gui.font;

import com.mojang.blaze3d.font.GlyphBitmap;
import com.mojang.blaze3d.font.GlyphInfo;
import java.util.ArrayList;
import java.util.List;
import net.minecraft.client.gui.font.glyphs.BakedSheetGlyph;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.resources.Identifier;
import org.jspecify.annotations.Nullable;

public class GlyphStitcher implements AutoCloseable {
	private final TextureManager textureManager;
	private final Identifier texturePrefix;
	private final List<FontTexture> textures = new ArrayList();

	public GlyphStitcher(final TextureManager textureManager, final Identifier texturePrefix) {
		this.textureManager = textureManager;
		this.texturePrefix = texturePrefix;
	}

	public void reset() {
		int textureCount = this.textures.size();
		this.textures.clear();

		for (int i = 0; i < textureCount; i++) {
			this.textureManager.release(this.textureName(i));
		}
	}

	public void close() {
		this.reset();
	}

	@Nullable
	public BakedSheetGlyph stitch(final GlyphInfo info, final GlyphBitmap glyphBitmap) {
		for (FontTexture texture : this.textures) {
			BakedSheetGlyph glyph = texture.add(info, glyphBitmap);
			if (glyph != null) {
				return glyph;
			}
		}

		int nextIndex = this.textures.size();
		Identifier name = this.textureName(nextIndex);
		boolean isColored = glyphBitmap.isColored();
		GlyphRenderTypes renderTypes = isColored ? GlyphRenderTypes.createForColorTexture(name) : GlyphRenderTypes.createForGrayscaleTexture(name);
		FontTexture texturex = new FontTexture(name::toString, renderTypes, isColored);
		this.textures.add(texturex);
		this.textureManager.register(name, texturex);
		return texturex.add(info, glyphBitmap);
	}

	private Identifier textureName(final int index) {
		return this.texturePrefix.withSuffix("/" + index);
	}
}