package lol.pyr.znpcsplus;

import lol.pyr.director.adventure.command.CommandContext;
import lol.pyr.director.common.message.Message;
import lol.pyr.znpcsplus.util.FileUtil;
import net.kyori.adventure.text.Component;
import net.kyori.adventure.text.minimessage.MiniMessage;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.plugin.java.JavaPlugin;

import java.io.File;
import java.io.IOException;
import java.io.Reader;
import java.nio.file.Files;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ZNpcsPlusBootstrap extends JavaPlugin {
    private ZNpcsPlus zNpcsPlus;
    private boolean legacy;

    @Override
    public void onLoad() {
        legacy = new File(getDataFolder(), "data.json").isFile() && !new File(getDataFolder(), "data").isDirectory();
        if (legacy) try {
            Files.move(getDataFolder().toPath(), new File(getDataFolder().getParentFile(), "ZNPCsPlusLegacy").toPath());
        } catch (IOException e) {
            getLogger().severe(ChatColor.RED + "Failed to move legacy data folder! Plugin will disable.");
            e.printStackTrace();
            Bukkit.getPluginManager().disablePlugin(this);
            return;
        }
        zNpcsPlus = new ZNpcsPlus(this);
    }

    @Override
    public void onEnable() {
        if (zNpcsPlus != null) zNpcsPlus.onEnable();
    }

    @Override
    public void onDisable() {
        if (zNpcsPlus != null) zNpcsPlus.onDisable();
    }

    private final static Pattern EMBEDDED_FILE_PATTERN = Pattern.compile("\\{@(.*?)}");

    private String loadMessageFile(String file) {
        Reader reader = getTextResource("messages/" + file + ".txt");
        if (reader == null) throw new RuntimeException(file + ".txt is missing from ZNPCsPlus jar!");
        String text = FileUtil.dumpReaderAsString(reader);
        Matcher matcher = EMBEDDED_FILE_PATTERN.matcher(text);
        StringBuilder builder = new StringBuilder();
        int lastMatchEnd = 0;
        while (matcher.find()) {
            builder.append(text, lastMatchEnd, matcher.start());
            lastMatchEnd = matcher.end();
            builder.append(loadMessageFile(matcher.group(1)));
        }
        builder.append(text, lastMatchEnd, text.length());
        return builder.toString();
    }

    protected Message<CommandContext> loadHelpMessage(String name) {
        Component component = MiniMessage.miniMessage().deserialize(loadMessageFile(name));
        return context -> context.send(component);
    }

    public boolean movedLegacy() {
        return legacy;
    }
}