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

import io.gitlab.jfronny.commons.throwable.Coerce;
import io.gitlab.jfronny.commons.throwable.Try;
import io.gitlab.jfronny.libjf.config.api.ConfigHolder;
import io.gitlab.jfronny.libjf.config.api.ConfigInstance;
import io.gitlab.jfronny.libjf.config.api.EntryInfo;
import io.gitlab.jfronny.libjf.config.impl.EntryInfoImpl;
import io.gitlab.jfronny.libjf.config.impl.client.gui.presets.PresetsScreen;
import io.gitlab.jfronny.libjf.unsafe.SafeLog;
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.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 java.util.*;

@Environment(EnvType.CLIENT)
public class TinyConfigScreen extends Screen {
    public TinyConfigScreen(ConfigInstance config, Screen parent) {
        super(new TranslatableText(config.getModId() + ".jfconfig." + config.getCategoryPath() + "title"));
        this.parent = parent;
        this.config = config;
        this.widgets = EntryInfoWidgetBuilder.buildWidgets(config);
        this.translationPrefix = config.getModId() + ".jfconfig." + config.getCategoryPath();
    }
    private final String translationPrefix;
    private final Screen parent;
    private final ConfigInstance config;
    private final List<WidgetState<?>> widgets;
    private MidnightConfigListWidget list;

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

        config.verify();

        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) -> {
            for (WidgetState<?> state : widgets) {
                Try.orElse(state::writeToEntry, e -> SafeLog.error("Could not write config data to class", e));
            }
            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 (Map.Entry<String, ConfigInstance> entry : config.getCategories().entrySet()) {
            this.list.addReference(width / 2,
                    new TranslatableText(entry.getValue().getModId() + ".jfconfig." + entry.getValue().getCategoryPath() + "title"),
                    () -> new TinyConfigScreen(entry.getValue(), this));
        }
        for (WidgetState<?> info : widgets) {
            TranslatableText name = new TranslatableText(translationPrefix + info.entry.getName());
            EntryInfoImpl.Widget control = info.entry.build(width, textRenderer, done);
            ButtonWidget resetButton = new ButtonWidget(width - 155, 0, 40, 20, new TranslatableText("libjf-config-v0.reset"), (button -> {
                info.reset();
                control.update().run();
            }));
            this.list.addButton(control.widget(), resetButton, () -> {
                boolean visible = !Objects.equals(info.entry.getDefault(), info.cachedValue);
                resetButton.active = visible;
                return visible;
            }, name);
        }
        for (String referencedConfig : config.getReferencedConfigs()) {
            ConfigInstance ci = ConfigHolder.getInstance().get(referencedConfig);
            if (ci != null) {
                this.list.addReference(width / 2,
                        new TranslatableText("libjf-config-v0.see-also", new TranslatableText(ci.getModId() + ".jfconfig." + ci.getCategoryPath() + "title")),
                        () -> new TinyConfigScreen(ci, this));
            }
        }
    }

    @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<Text> hovered = list.getHoveredEntryTitle(mouseY);
        if (hovered.isPresent()) {
            for (WidgetState<?> info : widgets) {
                Text text = hovered.get();
                TranslatableText name = new TranslatableText(this.translationPrefix + info.entry.getName());
                boolean showTooltip = text.equals(name);
                String tooltipKey = translationPrefix + info.entry.getName() + ".tooltip";
                if (showTooltip && info.error != null) {
                    showTooltip = false;
                    renderTooltip(matrices, info.error.right(), 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);
    }
}