package io.gitlab.jfronny.dynres;

import com.mojang.brigadier.Command;
import io.gitlab.jfronny.dynres.web.RequestHandler;
import io.gitlab.jfronny.dynres.web.bluemapcore.WebServer;
import net.fabricmc.api.DedicatedServerModInitializer;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import net.fabricmc.fabric.api.command.v1.CommandRegistrationCallback;
import net.fabricmc.loader.api.FabricLoader;
import net.fabricmc.loader.gui.FabricGuiEntry;
import net.minecraft.server.command.CommandManager;
import net.minecraft.text.LiteralText;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Arrays;

//TODO host the pack
@Environment(EnvType.SERVER)
public class DynRes implements DedicatedServerModInitializer {
    static WebServer server;
    public static final String resFile = "resources.zip";
    public static final String baseLink = "http://127.0.0.1/";
    @Override
    public void onInitializeServer() {
        //TODO allow setting max connections or fixed port
        //TODO allow setting custom resources path
        File f = new File(FabricLoader.getInstance().getGameDir().toFile(), resFile);
        if (!f.isFile()) {
            FabricGuiEntry.displayCriticalError(new FileNotFoundException("The file resources.zip does not exist in the game directory but is required"), true);
            return;
        }

        server = new WebServer(0, 20, null, new RequestHandler(f, resFile));
        server.start();
        CommandRegistrationCallback.EVENT.register((dispatcher, dedicated) -> {
            if (dedicated) {
                dispatcher.register(CommandManager.literal("dynres").executes(context -> {
                    context.getSource().sendFeedback(new LiteralText("DynRes is active. Use dynres restart if it breaks"), false);
                    return Command.SINGLE_SUCCESS;
                }));
                dispatcher.register(CommandManager.literal("dynres").then(CommandManager.literal("restart")).executes(context -> {
                    context.getSource().sendFeedback(new LiteralText("Restarting DynRes"), true);
                    server.start();
                    context.getSource().sendFeedback(new LiteralText("DynRes restarted"), true);
                    return Command.SINGLE_SUCCESS;
                }));
            }
            else {
                System.err.println("DYNRES SHOULD NOT BE RUN ON INTERNAL SERVERS!");
            }
        });
    }

    public static String getPort() {
        return Integer.toString(server.getPort());
    }

    public static String simplifyElement(String s) {
        String path = s.toLowerCase();
        if (path.startsWith("/")) path = path.substring(1);
        if (path.endsWith("/")) path = path.substring(0, path.length() - 1);
        return path;
    }

    public static String removePort(String s) {
        String[] r = s.split(":");
        if (r.length > 2)
            r = Arrays.copyOf(r, 2);
        return String.join(":", r);
    }
}