package net.minecraft.client.gui.components.debug;

import com.mojang.blaze3d.platform.GLX;
import com.mojang.blaze3d.systems.DeviceInfo;
import com.mojang.blaze3d.systems.DeviceType;
import com.mojang.blaze3d.systems.RenderSystem;
import java.util.List;
import java.util.Locale;
import net.minecraft.client.Minecraft;
import net.minecraft.resources.Identifier;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.chunk.LevelChunk;
import org.jspecify.annotations.Nullable;

public class DebugEntrySystemSpecs implements DebugScreenEntry {
	private static final Identifier GROUP = Identifier.withDefaultNamespace("system");

	@Override
	public void display(
		final DebugScreenDisplayer displayer,
		@Nullable final Level serverOrClientLevel,
		@Nullable final LevelChunk clientChunk,
		@Nullable final LevelChunk serverChunk
	) {
		DeviceInfo deviceInfo = RenderSystem.getDevice().getDeviceInfo();
		displayer.addToGroup(
			GROUP,
			List.of(
				String.format(Locale.ROOT, "Java: %s", System.getProperty("java.version")),
				String.format(Locale.ROOT, "CPU: %s", GLX._getCpuInfo()),
				String.format(
					Locale.ROOT,
					"Display: %dx%d (%s)",
					Minecraft.getInstance().getWindow().getWidth(),
					Minecraft.getInstance().getWindow().getHeight(),
					deviceInfo.vendorName()
				),
				String.format(Locale.ROOT, "%s%s", deviceInfo.name(), this.typeName(deviceInfo.type())),
				String.format(Locale.ROOT, "%s %s", deviceInfo.backendName(), deviceInfo.driverInfo())
			)
		);
	}

	private String typeName(final DeviceType type) {
		return switch (type) {
			case OTHER -> "";
			case INTEGRATED -> " (iGPU)";
			case DISCRETE -> " (dGPU)";
			case VIRTUAL -> " (vGPU)";
			case CPU -> " (software)";
		};
	}

	@Override
	public boolean isAllowed(final boolean reducedDebugInfo) {
		return true;
	}
}