api for guild modules

src/main/java/net/Indyuce/mmocore/guild/AbstractGuild.java

@@ -0,0 +1,4 @@
+package net.Indyuce.mmocore.guild;
+
+public interface AbstractGuild {
+}

src/main/java/net/Indyuce/mmocore/guild/GuildModule.java

@@ -0,0 +1,4 @@
+package net.Indyuce.mmocore.guild;
+
+public interface GuildModule {
+}

src/main/java/net/Indyuce/mmocore/guild/GuildModuleType.java

@@ -0,0 +1,25 @@
+package net.Indyuce.mmocore.guild;
+
+import org.bukkit.Bukkit;
+
+import javax.inject.Provider;
+
+public enum GuildModuleType {
+    ;
+
+    private final String pluginName;
+    private final Provider<GuildModule> provider;
+
+    GuildModuleType(String pluginName, Provider<GuildModule> provider) {
+        this.pluginName = pluginName;
+        this.provider = provider;
+    }
+
+    public boolean isValid() {
+        return Bukkit.getPluginManager().getPlugin(pluginName) != null;
+    }
+
+    public GuildModule provideModule() {
+        return provider.get();
+    }
+}