package dev.isxander.yacl.gui.controllers;

import dev.isxander.yacl.api.Controller;
import dev.isxander.yacl.api.Option;
import dev.isxander.yacl.api.utils.Dimension;
import dev.isxander.yacl.gui.AbstractWidget;
import dev.isxander.yacl.gui.YACLScreen;
import net.minecraft.client.util.math.MatrixStack;
import net.minecraft.text.OrderedText;
import net.minecraft.text.Text;
import org.jetbrains.annotations.ApiStatus;

import java.util.List;

/**
 * Simply renders some text as a label.
 */
public class LabelController implements Controller<Text> {
    private final Option<Text> option;
    /**
     * Constructs a label controller
     *
     * @param option bound option
     */
    public LabelController(Option<Text> option) {
        this.option = option;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Option<Text> option() {
        return option;
    }

    @Override
    public Text formatValue() {
        return option().pendingValue();
    }

    @Override
    public AbstractWidget provideWidget(YACLScreen screen, Dimension<Integer> widgetDimension) {
        return new LabelControllerElement(widgetDimension);
    }

    @ApiStatus.Internal
    public class LabelControllerElement extends AbstractWidget {
        private List<OrderedText> wrappedText;

        public LabelControllerElement(Dimension<Integer> dim) {
            super(dim);
            updateText();
        }

        @Override
        public void render(MatrixStack matrices, int mouseX, int mouseY, float delta) {
            updateText();

            int i = 0;
            for (OrderedText text : wrappedText) {
                textRenderer.drawWithShadow(matrices, text, dim.x(), dim.y() + getYPadding() + i * textRenderer.fontHeight, -1);
                i++;
            }
        }

        private int getYPadding() {
            return 3;
        }

        private void updateText() {
            wrappedText = textRenderer.wrapLines(formatValue(), dim.width());
            dim.setHeight(wrappedText.size() * 9 + getYPadding() * 2);
        }
    }
}