Add Configuration files

plugin/src/main/java/com/alttd/cometskyblock/configuration/Configuration.java

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+package com.alttd.cometskyblock.configuration;
+
+public interface Configuration {
+}

plugin/src/main/java/com/alttd/cometskyblock/configuration/ConfigurationContainer.java

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+package com.alttd.cometskyblock.configuration;
+
+import org.jetbrains.annotations.NotNull;
+import org.spongepowered.configurate.CommentedConfigurationNode;
+import org.spongepowered.configurate.ConfigurateException;
+import org.spongepowered.configurate.yaml.NodeStyle;
+import org.spongepowered.configurate.yaml.YamlConfigurationLoader;
+
+import java.nio.file.Path;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.atomic.AtomicReference;
+import org.slf4j.Logger;
+
+public class ConfigurationContainer<C extends Configuration> {
+    private final AtomicReference<C> config;
+    private final YamlConfigurationLoader loader;
+    private final CommentedConfigurationNode node;
+    private final Class<C> clazz;
+    private final Logger logger;
+
+    private ConfigurationContainer(final C config, final Class<C> clazz, final YamlConfigurationLoader loader, final CommentedConfigurationNode node, final Logger logger) {
+        this.config = new AtomicReference<>(config);
+        this.loader = loader;
+        this.node = node;
+        this.clazz = clazz;
+        this.logger = logger;
+    }
+
+    public CompletableFuture<Boolean> reload() {
+        return CompletableFuture.supplyAsync(() -> {
+            try {
+                final CommentedConfigurationNode node = loader.load();
+                C newConfig = node.get(clazz);
+                node.set(clazz, newConfig);
+                loader.save(node);
+                config.set(newConfig);
+                return true;
+            } catch (ConfigurateException exception) {
+                logger.error("Could not reload {} configuration file", clazz.getSimpleName(), exception);
+                return false;
+            }
+        });
+    }
+
+    public CompletableFuture<Boolean> save() {
+        return CompletableFuture.supplyAsync(() -> {
+            try {
+                node.set(clazz, get());
+                loader.save(node);
+                return true;
+            } catch (ConfigurateException exception) {
+                logger.error("Could not reload {} configuration file", clazz.getSimpleName(), exception);
+                return false;
+            }
+        });
+    }
+
+    public @NotNull C get() {
+        return this.config.get();
+    }
+
+    public static <C extends Configuration> ConfigurationContainer<C> load(final Logger logger, final Path path, final Class<C> clazz, final String file) {
+        final YamlConfigurationLoader loader = YamlConfigurationLoader.builder()
+                .defaultOptions(options -> options
+                        .shouldCopyDefaults(true)
+                        .header("")
+                )
+                .path(path.resolve(file + ".yml"))
+                .nodeStyle(NodeStyle.BLOCK)
+                .build();
+        try {
+            final CommentedConfigurationNode node = loader.load();
+            final C config = node.get(clazz);
+            node.set(clazz, config);
+            loader.save(node);
+            return new ConfigurationContainer<>(config, clazz, loader, node, logger);
+        } catch (ConfigurateException exception){
+            logger.error("Could not load {} configuration file", clazz.getSimpleName(), exception);
+            return null;
+        }
+    }
+
+}

plugin/src/main/java/com/alttd/cometskyblock/configuration/DatabaseConfiguration.java

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+package com.alttd.cometskyblock.configuration;
+
+
+import lombok.Getter;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+
+@ConfigSerializable
+@Getter
+@SuppressWarnings({"CanBeFinal", "FieldMayBeFinal"})
+public class DatabaseConfiguration implements Configuration {
+
+    private String ip = "0.0.0.0";
+    private String port = "3306";
+    private String database = "CometSkyBlock";
+    private String user = "root";
+    private String password = "toor";
+    private String maximumConnections = "10";
+
+}

plugin/src/main/java/com/alttd/cometskyblock/configuration/IslandConfiguration.java

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+package com.alttd.cometskyblock.configuration;
+
+import lombok.Getter;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+
+@ConfigSerializable
+@Getter
+@SuppressWarnings({"CanBeFinal", "FieldMayBeFinal"})
+public class IslandConfiguration implements Configuration {
+
+}

plugin/src/main/java/com/alttd/cometskyblock/configuration/MessageConfiguration.java

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+package com.alttd.cometskyblock.configuration;
+
+import lombok.Getter;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+
+@ConfigSerializable
+@Getter
+@SuppressWarnings({"CanBeFinal", "FieldMayBeFinal"})
+public class MessageConfiguration implements Configuration {
+}

plugin/src/main/java/com/alttd/cometskyblock/configuration/PluginConfiguration.java

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+package com.alttd.cometskyblock.configuration;
+
+import lombok.Getter;
+
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+import org.spongepowered.configurate.objectmapping.meta.Comment;
+
+@ConfigSerializable
+@Getter
+@SuppressWarnings({"CanBeFinal", "FieldMayBeFinal"})
+public class PluginConfiguration implements Configuration {
+
+    @Comment("Generate debug messages")
+    private boolean debug = true;
+
+    private MasterWorldGenerator masterWorldGenerator = new MasterWorldGenerator();
+    @ConfigSerializable @Getter
+    public static class MasterWorldGenerator {
+
+        private int centerX = 0;
+        private int centerZ = 0;
+        private int size = 100;
+
+        private int spawnX = 0;
+        private int spawnY = 63;
+        private int spawnz = 0;
+
+    }
+
+}