package net.minecraft.client.gui.screens.friends;

import java.util.List;
import java.util.function.Consumer;
import net.minecraft.ChatFormatting;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.components.AbstractWidget;
import net.minecraft.client.gui.components.FocusableTextWidget;
import net.minecraft.client.gui.components.LoadingDotsWidget;
import net.minecraft.client.gui.components.ScrollableLayout;
import net.minecraft.client.gui.layouts.FrameLayout;
import net.minecraft.client.gui.layouts.Layout;
import net.minecraft.client.gui.layouts.LayoutSettings;
import net.minecraft.client.gui.layouts.LinearLayout;
import net.minecraft.client.gui.navigation.ScreenRectangle;
import net.minecraft.network.chat.Component;

class PendingTab extends AbstractFriendsTab {
	private static final Component RECEIVED_HEADER = Component.translatable("gui.friends.pending.received")
		.withStyle(new ChatFormatting[]{ChatFormatting.BOLD, ChatFormatting.UNDERLINE});
	private static final Component SENT_HEADER = Component.translatable("gui.friends.pending.sent")
		.withStyle(new ChatFormatting[]{ChatFormatting.BOLD, ChatFormatting.UNDERLINE});
	private static final Component EMPTY_STATE = Component.translatable("gui.friends.pending.empty").withStyle(ChatFormatting.GRAY);
	private final FriendsOverlayScreen screen;
	private final LinearLayout layout;
	private final LinearLayout pendingScrollableContent;
	private final LoadingDotsWidget loadingDotsWidget;
	private final ScrollableLayout scrollableLayout;

	PendingTab(final Minecraft minecraft, final LoadingDotsWidget loadingDotsWidget, final FriendsOverlayScreen screen, final int width, final int height) {
		super(width, height);
		this.screen = screen;
		this.layout = LinearLayout.vertical();
		this.layout.defaultCellSetting().alignHorizontallyCenter();
		this.loadingDotsWidget = loadingDotsWidget;
		this.pendingScrollableContent = LinearLayout.vertical();
		this.scrollableLayout = new ScrollableLayout(minecraft, this.pendingScrollableContent, height, ScrollableLayout.ReserveStrategy.RIGHT);
		this.scrollableLayout.setMaxHeight(height);
		this.layout.addChild(this.scrollableLayout);
		this.rearrangeElements();
	}

	@Override
	void rearrangeElements() {
		this.scrollableLayout.setMinHeight(this.height);
		this.scrollableLayout.setMaxHeight(this.height);
	}

	@Override
	public Component getTabTitle() {
		return Component.translatable("gui.friends.requests_count", new Object[]{0});
	}

	@Override
	public Component getTabExtraNarration() {
		return Component.empty();
	}

	@Override
	public void visitChildren(final Consumer<AbstractWidget> childrenConsumer) {
		this.layout.visitWidgets(childrenConsumer);
	}

	@Override
	public void doLayout(final ScreenRectangle screenRectangle) {
		this.layout.arrangeElements();
		FrameLayout.alignInRectangle(this.layout, screenRectangle, 0.5F, 0.16666667F);
	}

	@Override
	public Layout getLayout() {
		return this.layout;
	}

	public void showLoading() {
		this.pendingScrollableContent.removeChildren();
		this.pendingScrollableContent.addChild(this.createCenteredFrame(this.loadingDotsWidget, this.width - 10, this.height));
	}

	public void showError(final Component message) {
		this.pendingScrollableContent.removeChildren();
		FocusableTextWidget text = FocusableTextWidget.builder(message.copy().withStyle(ChatFormatting.GRAY), this.screen.getFont())
			.maxWidth(this.width - 16 - 4)
			.alwaysShowBorder(false)
			.backgroundFill(FocusableTextWidget.BackgroundFill.NEVER)
			.build();
		text.setCentered(true);
		this.pendingScrollableContent.addChild(this.createCenteredFrame(text, this.width - 10, this.height));
	}

	public void updateEntries(final List<IncomingEntry> incomingEntries, final List<OutgoingEntry> outgoingEntries) {
		this.pendingScrollableContent.removeChildren();
		if (!incomingEntries.isEmpty()) {
			this.pendingScrollableContent
				.addChild(
					FocusableTextWidget.builder(RECEIVED_HEADER, this.screen.getFont())
						.alwaysShowBorder(false)
						.backgroundFill(FocusableTextWidget.BackgroundFill.NEVER)
						.build(),
					LayoutSettings::alignHorizontallyCenter
				);
			incomingEntries.forEach(this.pendingScrollableContent::addChild);
		}

		if (!outgoingEntries.isEmpty()) {
			this.pendingScrollableContent
				.addChild(
					FocusableTextWidget.builder(SENT_HEADER, this.screen.getFont()).alwaysShowBorder(false).backgroundFill(FocusableTextWidget.BackgroundFill.NEVER).build(),
					LayoutSettings::alignHorizontallyCenter
				);
			outgoingEntries.forEach(this.pendingScrollableContent::addChild);
		}
	}

	@Override
	protected Layout entriesContainer() {
		return this.pendingScrollableContent;
	}

	public void showEmpty() {
		this.pendingScrollableContent.removeChildren();
		LinearLayout content = new LinearLayout(0, 0, LinearLayout.Orientation.VERTICAL).spacing(8);
		content.defaultCellSetting().alignHorizontallyCenter().alignVerticallyMiddle().paddingLeft(8);
		FocusableTextWidget text = FocusableTextWidget.builder(EMPTY_STATE, this.screen.getFont())
			.alwaysShowBorder(false)
			.backgroundFill(FocusableTextWidget.BackgroundFill.NEVER)
			.build();
		text.setCentered(true);
		content.addChild(text);
		FrameLayout linearLayout = this.pendingScrollableContent.addChild(this.createCenteredFrame(content, this.width - 10, this.height));
		linearLayout.defaultChildLayoutSetting().paddingLeft(8).paddingTop(0).alignHorizontallyCenter().alignVerticallyMiddle();
	}
}