/*
 * This file is part of LuckPerms, licensed under the MIT License.
 *
 *  Copyright (c) lucko (Luck) <luck@lucko.me>
 *  Copyright (c) contributors
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *  SOFTWARE.
 */

package me.lucko.luckperms.bukkit.util;

import org.bukkit.Bukkit;

public final class CraftBukkitImplementation {
    private CraftBukkitImplementation() {}

    private static final String SERVER_PACKAGE_VERSION = getServerPackageVersion();
    private static final boolean CHAT_COMPATIBLE = !SERVER_PACKAGE_VERSION.startsWith(".v1_7_");

    private static String getServerPackageVersion() {
        Class<?> server = Bukkit.getServer().getClass();
        if (!server.getSimpleName().equals("CraftServer")) {
            return ".";
        }
        if (server.getName().equals("org.bukkit.craftbukkit.CraftServer")) {
            // Non versioned class
            return ".";
        } else {
            String version = server.getName().substring("org.bukkit.craftbukkit".length());
            return version.substring(0, version.length() - "CraftServer".length());
        }
    }

    public static boolean isChatCompatible() {
        return CHAT_COMPATIBLE;
    }

    public static String nms(String className) {
        return "net.minecraft.server" + SERVER_PACKAGE_VERSION + className;
    }

    public static Class<?> nmsClass(String className) throws ClassNotFoundException {
        return Class.forName(nms(className));
    }

    public static String obc(String className) {
        return "org.bukkit.craftbukkit" + SERVER_PACKAGE_VERSION + className;
    }

    public static Class<?> obcClass(String className) throws ClassNotFoundException {
        return Class.forName(obc(className));
    }
}

@@ -1307,16 +1307,81 @@
 ukkit;%0A%0A
+import java.util.regex.Matcher;%0Aimport java.util.regex.Pattern;%0A%0A
 public f
@@ -1521,36 +1521,8 @@
 SION
- = getServerPackageVersion()
 ;%0A  
@@ -1571,109 +1571,21 @@
 IBLE
- = !SERVER_PACKAGE_VERSION.startsWith(%22.v1_7_%22);%0A%0A    private static String getServerPackageVersion()
+;%0A%0A    static
  %7B%0A 
@@ -1652,44 +1652,82 @@
     
-if (!server.getSi
+Matcher matcher = Pattern.co
 mp
+i
 le
-Name().equals(%22
+(%22%5Eorg%5C%5C.bukkit%5C%5C.craftbukkit%5C%5C.(%5C%5Cw+)%5C%5C.
 Craf
@@ -1737,375 +1737,308 @@
 rver
+$
 %22)
-) %7B%0A            return %22.%22;%0A        %7D%0A        if (server.getName().equals(%22org.bukkit.craftbukkit.CraftServer%22)) %7B%0A            // Non versioned class%0A            return %22.%22;%0A        %7D else %7B%0A            String version = server.getName().substring(%22org.bukkit.craftbukkit%22.length());%0A            return version.substring(0, version.length() - %22CraftServer%22.length())
+.matcher(server.getName());%0A        if (matcher.matches()) %7B%0A            SERVER_PACKAGE_VERSION = '.' + matcher.group(1) + '.';%0A            CHAT_COMPATIBLE = !SERVER_PACKAGE_VERSION.startsWith(%22.v1_7_%22);%0A        %7D else %7B%0A            SERVER_PACKAGE_VERSION = %22.%22;%0A            CHAT_COMPATIBLE = true
 ;%0A  

Refactor CraftBukkitImplementation utility