Custom-Crops/src/main/java/net/momirealms/customcrops/helper/VersionHelper.java

package net.momirealms.customcrops.helper;

import de.tr7zw.changeme.nbtapi.utils.MinecraftVersion;
import de.tr7zw.changeme.nbtapi.utils.VersionChecker;
import net.momirealms.customcrops.CustomCrops;

import java.lang.reflect.Field;

public class VersionHelper {

    private boolean isNewerThan1_19_R2;
    private String version;
    private final CustomCrops plugin;

    public VersionHelper(CustomCrops plugin) {
        this.plugin = plugin;
        isVersionNewerThan1_19_R2();
        disableUseLessInfo();
    }

    public boolean isVersionNewerThan1_19_R2() {
        if (version == null) {
            version = plugin.getServer().getClass().getPackage().getName().split("\\.")[3];
            String[] split = version.split("_");
            int main_ver = Integer.parseInt(split[1]);
            if (main_ver >= 20) isNewerThan1_19_R2 = true;
            else if (main_ver == 19) isNewerThan1_19_R2 = Integer.parseInt(split[2].substring(1)) >= 2;
            else isNewerThan1_19_R2 = false;
        }
        return isNewerThan1_19_R2;
    }

    private void disableUseLessInfo() {
        MinecraftVersion.disableBStats();
        MinecraftVersion.disableUpdateCheck();
        VersionChecker.hideOk = true;
        try {
            Field field = MinecraftVersion.class.getDeclaredField("version");
            field.setAccessible(true);
            MinecraftVersion minecraftVersion;
            try {
                minecraftVersion = MinecraftVersion.valueOf(version.replace("v", "MC"));
            } catch (IllegalArgumentException ex) {
                minecraftVersion = MinecraftVersion.UNKNOWN;
            }
            field.set(MinecraftVersion.class, minecraftVersion);
        } catch (NoSuchFieldException | IllegalAccessException e) {
            throw new RuntimeException(e);
        }
        boolean hasGsonSupport;
        try {
            Class.forName("com.google.gson.Gson");
            hasGsonSupport = true;
        } catch (Exception ex) {
            hasGsonSupport = false;
        }
        try {
            Field field= MinecraftVersion.class.getDeclaredField("hasGsonSupport");
            field.setAccessible(true);
            field.set(Boolean.class, hasGsonSupport);
        } catch (NoSuchFieldException | IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }
}