package io.gitlab.jfronny.libjf.config.impl.client.screen;

import io.gitlab.jfronny.libjf.config.api.ConfigInstance;
import io.gitlab.jfronny.libjf.config.impl.EntryInfo;
import io.gitlab.jfronny.libjf.config.impl.client.screen.presets.PresetsScreen;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.screen.ScreenTexts;
import net.minecraft.client.gui.widget.ButtonWidget;
import net.minecraft.client.gui.widget.ClickableWidget;
import net.minecraft.client.gui.widget.TextFieldWidget;
import net.minecraft.client.resource.language.I18n;
import net.minecraft.client.util.math.MatrixStack;
import net.minecraft.text.LiteralText;
import net.minecraft.text.Text;
import net.minecraft.text.TranslatableText;
import net.minecraft.util.Formatting;

import java.util.*;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Predicate;

@Environment(EnvType.CLIENT)
public class TinyConfigScreen extends Screen {
    public TinyConfigScreen(Screen parent, ConfigInstance config) {
        super(new TranslatableText(config.getModId() + ".jfconfig." + "title"));
        this.parent = parent;
        this.config = config;
        this.translationPrefix = config.getModId() + ".jfconfig.";
    }
    private final String translationPrefix;
    private final Screen parent;
    private final ConfigInstance config;
    private MidnightConfigListWidget list;

    // Real Time config update //
    @Override
    public void tick() {
        config.syncToClass();
    }

    @Override
    protected void init() {
        super.init();

        config.syncFromClass();

        this.addDrawableChild(new ButtonWidget(4, 6, 80, 20, new TranslatableText("libjf-config-v0.presets"), button -> {
            MinecraftClient.getInstance().setScreen(new PresetsScreen(this, config));
        }));

        this.addDrawableChild(new ButtonWidget(this.width / 2 - 154, this.height - 28, 150, 20, ScreenTexts.CANCEL, button -> {
            config.load();
            Objects.requireNonNull(client).setScreen(parent);
        }));

        ButtonWidget done = this.addDrawableChild(new ButtonWidget(this.width / 2 + 4, this.height - 28, 150, 20, ScreenTexts.DONE, (button) -> {
            config.syncToClass();
            config.write();
            Objects.requireNonNull(client).setScreen(parent);
        }));

        this.list = new MidnightConfigListWidget(this.client, this.width, this.height, 32, this.height - 32, 25);
        this.addSelectableChild(this.list);
        for (EntryInfo info : config.getEntries()) {
            TranslatableText name = new TranslatableText(translationPrefix + info.field.getName());
            ButtonWidget resetButton = new ButtonWidget(width - 155, 0, 40, 20, new LiteralText("Reset").formatted(Formatting.RED), (button -> {
                info.value = info.defaultValue;
                info.tempValue = info.value.toString();
                double scrollAmount = list.getScrollAmount();
                Objects.requireNonNull(client).setScreen(this);
                list.setScrollAmount(scrollAmount);
            }));

            if (info.widget instanceof Map.Entry) {
                Map.Entry<ButtonWidget.PressAction, Function<Object, Text>> widget = (Map.Entry<ButtonWidget.PressAction, Function<Object, Text>>) info.widget;
                if (info.field.getType().isEnum()) widget.setValue(value -> new TranslatableText(translationPrefix + "enum." + info.field.getType().getSimpleName() + "." + info.value.toString()));
                this.list.addButton(new ButtonWidget(width - 110, 0, info.width, 20, widget.getValue().apply(info.value), widget.getKey()),resetButton,name);
            } else if (info.widget != null) {
                TextFieldWidget widget = new TextFieldWidget(textRenderer, width - 110, 0, info.width, 20, null);

                widget.setText(info.tempValue);
                Predicate<String> processor = ((BiFunction<TextFieldWidget, ButtonWidget, Predicate<String>>) info.widget).apply(widget, done);
                widget.setTextPredicate(processor);
                this.list.addButton(widget, resetButton, name);
            } else {
                ButtonWidget dummy = new ButtonWidget(-10, 0, 0, 0, Text.of(""), null);
                this.list.addButton(dummy,dummy,name);
            }
        }
    }

    @Override
    public void render(MatrixStack matrices, int mouseX, int mouseY, float delta) {
        this.renderBackground(matrices);
        this.list.render(matrices, mouseX, mouseY, delta);

        drawCenteredText(matrices, textRenderer, title, width / 2, 15, 0xFFFFFF);

        Optional<ClickableWidget> widget = list.getHoveredButton(mouseY);
        if (widget.isPresent()) {
            for (EntryInfo info : config.getEntries()) {
                ClickableWidget buttonWidget = widget.get();
                Text text = ConfigScreenEntry.buttonsWithText.get(buttonWidget);
                TranslatableText name = new TranslatableText(this.translationPrefix + info.field.getName());
                boolean showTooltip = text.equals(name);
                String tooltipKey = translationPrefix + info.field.getName() + ".tooltip";
                if (showTooltip && info.error != null) {
                    showTooltip = false;
                    renderTooltip(matrices, info.error.getValue(), mouseX, mouseY);
                }
                if (showTooltip && I18n.hasTranslation(tooltipKey)) {
                    showTooltip = false;
                    List<Text> list = new ArrayList<>();
                    for (String str : I18n.translate(tooltipKey).split("\n"))
                        list.add(new LiteralText(str));
                    renderTooltip(matrices, list, mouseX, mouseY);
                }
            }
        }
        super.render(matrices,mouseX,mouseY,delta);
    }

    @Override
    public void close() {
        MinecraftClient.getInstance().setScreen(parent);
    }
}