src/main/java/dev/frogmc/frogloader/api/mod/ModDependencies.java

@@ -1,43 +1,8 @@
 package dev.frogmc.frogloader.api.mod;
 
-import java.util.*;
+import java.util.Collection;
 
-import org.jetbrains.annotations.ApiStatus;
-import org.jetbrains.annotations.Nullable;
-
-/**
- * A mod's dependencies.
- *
- * <p>Mod dependencies are declared in four types:</p>
- * <code>Type.DEPEND</code>, <code>Type.BREAK</code>, <code>Type.SUGGEST</code> and <code>Type.PROVIDE</code>
- *
- * <p>Note: The <code>Type.PROVIDE</code> is a bit of a special case in the way that it only supports a single SemVer version instead of a full version range.</p>
- *
- * @see ModDependencies.Type
- * @see ModDependencies.Entry
- * @see ModProperties
- * @see SemVer
- */
-public final class ModDependencies {
-
-	private final Map<Type, Collection<Entry>> entries = new HashMap<>();
-
-	/**
-	 * Construct new mod dependencies for a mod.
-	 * <p><strong>Internal use only.</strong></p>
-	 *
-	 * @param depends  <code>Type.DEPEND</code> entries
-	 * @param breaks   <code>Type.BREAK</code> entries
-	 * @param suggests <code>Type.SUGGEST</code> entries
-	 * @param provides <code>Type.PROVIDE</code> entries
-	 */
-	@ApiStatus.Internal
-	public ModDependencies(Collection<Entry> depends, Collection<Entry> breaks, Collection<Entry> suggests, Collection<Entry> provides) {
-		entries.put(Type.DEPEND, depends);
-		entries.put(Type.BREAK, breaks);
-		entries.put(Type.SUGGEST, suggests);
-		entries.put(Type.PROVIDE, provides);
-	}
+public interface ModDependencies {
 
 	/**
 	 * Get dependencies of a specific mod for a specific type
@@ -45,9 +10,7 @@ public final class ModDependencies {
 	 * @param type the dependency type to query for
 	 * @return a collection of dependency entries
 	 */
-	public Collection<Entry> getForType(Type type) {
-		return entries.get(type);
-	}
+	Collection<Entry> getForType(Type type);
 
 	/**
 	 * Get entries that depend on a specific mod's id
@@ -55,17 +18,7 @@ public final class ModDependencies {
 	 * @param id the mod id to find dependency entries for
 	 * @return a collection of entries that depend on the given mod id
 	 */
-	public Collection<ModEntry> getForModId(String id) {
-		List<ModEntry> entries = new ArrayList<>();
-		for (Type type : Type.values()) {
-			for (Entry entry : getForType(type)) {
-				if (entry.id.equals(id)) {
-					entries.add(new ModEntry(type, entry.range, entry.link, entry.name));
-				}
-			}
-		}
-		return entries;
-	}
+	Collection<Entry> getForModId(String id);
 
 	/**
 	 * Dependency types to distinguish their variants.
@@ -89,70 +42,18 @@ public final class ModDependencies {
 		PROVIDE
 	}
 
-	/**
-	 * A data class to handle entries depending on a specific mod id
-	 */
-	public static class ModEntry {
-		private final Type type;
-		private final String range;
-		private final String link;
-		private final String name;
+	interface Entry {
 
-		private ModEntry(Type type, String range, String link, String name) {
-			this.type = type;
-			this.range = range;
-			this.link = link;
-			this.name = name;
-		}
+		Type type();
 
-		/**
-		 * Get this dependency's type
-		 *
-		 * @return This dependency's type
-		 */
-		public Type type() {
-			return type;
-		}
+		String id();
 
-		/**
-		 * Get this dependency's version range
-		 *
-		 * @return This dependency's version range
-		 */
-		public String range() {
-			return range;
-		}
+		String range();
 
-		/**
-		 * Get this dependency's link
-		 * <p>May be null.</p>
-		 *
-		 * @return This dependency's link
-		 */
-		public @Nullable String link() {
-			return link;
-		}
+		String link();
 
-		/**
-		 * Get this dependency's (friendly) name
-		 * <p>May be null.</p>
-		 *
-		 * @return This dependency's name
-		 */
-		public @Nullable String name() {
-			return name;
-		}
-	}
-
-	/**
-	 * General storage for dependencies
-	 *
-	 * @param id    the mod's id
-	 * @param range the dependency's version range
-	 * @param link  an optional link for information about this dependency
-	 * @param name  an optional (friendly) name for this dependency
-	 */
-	public record Entry(String id, String range, String link, String name) {
+		String name();
 
 	}
+
 }

src/main/java/dev/frogmc/frogloader/api/mod/ModProperties.java

@@ -6,11 +6,13 @@ import java.util.Map;
 
 import org.jetbrains.annotations.Nullable;
 
+import dev.frogmc.frogloader.impl.mod.ModDependenciesImpl;
+
 /**
  * A mod's properties. This class represents a mod at runtime.
  * It is read from each mod's <code>frog.mod.toml</code> file.
  *
- * @see ModDependencies
+ * @see ModDependenciesImpl
  * @see ModExtensions
  * @see SemVer
  */
@@ -65,7 +67,7 @@ public interface ModProperties {
 	 * Get this mod's dependencies.
 	 *
 	 * @return The mod's dependencies
-	 * @see ModDependencies
+	 * @see ModDependenciesImpl
 	 */
 	ModDependencies dependencies();
 

src/main/java/dev/frogmc/frogloader/impl/mod/JavaModProperties.java

@@ -3,7 +3,6 @@ package dev.frogmc.frogloader.impl.mod;
 import java.util.Collections;
 import java.util.Map;
 
-import dev.frogmc.frogloader.api.mod.ModDependencies;
 import dev.frogmc.frogloader.api.mod.ModExtensions;
 import dev.frogmc.frogloader.api.mod.ModProperties;
 import dev.frogmc.frogloader.impl.SemVerParseException;
@@ -24,7 +23,7 @@ public class JavaModProperties {
 					SemVerImpl.parse(System.getProperty("java.runtime.version")),
 					"",
 					Map.of(System.getProperty("java.vm.vendor"), Collections.singleton("Vendor")),
-					new ModDependencies(Collections.emptySet(), Collections.emptySet(), Collections.emptySet(), Collections.emptySet()),
+					new ModDependenciesImpl(Collections.emptySet(), Collections.emptySet(), Collections.emptySet(), Collections.emptySet()),
 					new ModExtensionsImpl(Collections.emptyMap()), Collections.emptySet());
 		}
 		return INSTANCE;

src/main/java/dev/frogmc/frogloader/impl/mod/ModDependenciesImpl.java

@@ -0,0 +1,81 @@
+package dev.frogmc.frogloader.impl.mod;
+
+import java.util.*;
+
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+
+import dev.frogmc.frogloader.api.mod.ModDependencies;
+import dev.frogmc.frogloader.api.mod.ModProperties;
+import dev.frogmc.frogloader.api.mod.SemVer;
+import dev.frogmc.frogloader.api.mod.ModDependencies.Entry;
+import dev.frogmc.frogloader.api.mod.ModDependencies.Type;
+
+/**
+ * A mod's dependencies.
+ *
+ * <p>Mod dependencies are declared in four types:</p>
+ * <code>Type.DEPEND</code>, <code>Type.BREAK</code>, <code>Type.SUGGEST</code> and <code>Type.PROVIDE</code>
+ *
+ * <p>Note: The <code>Type.PROVIDE</code> is a bit of a special case in the way that it only supports a single SemVer version instead of a full version range.</p>
+ *
+ * @see ModDependenciesImpl.Type
+ * @see ModDependenciesImpl.Entry
+ * @see ModProperties
+ * @see SemVer
+ */
+public final class ModDependenciesImpl implements ModDependencies {
+
+	private final Map<Type, Collection<ModDependencies.Entry>> entries = new HashMap<>();
+
+	/**
+	 * Construct new mod dependencies for a mod.
+	 * <p><strong>Internal use only.</strong></p>
+	 *
+	 * @param depends  <code>Type.DEPEND</code> entries
+	 * @param breaks   <code>Type.BREAK</code> entries
+	 * @param suggests <code>Type.SUGGEST</code> entries
+	 * @param provides <code>Type.PROVIDE</code> entries
+	 */
+	@ApiStatus.Internal
+	public ModDependenciesImpl(Collection<ModDependencies.Entry> depends, Collection<ModDependencies.Entry> breaks, Collection<ModDependencies.Entry> suggests, Collection<ModDependencies.Entry> provides) {
+		entries.put(Type.DEPEND, depends);
+		entries.put(Type.BREAK, breaks);
+		entries.put(Type.SUGGEST, suggests);
+		entries.put(Type.PROVIDE, provides);
+	}
+
+	/**
+	 * Get dependencies of a specific mod for a specific type
+	 *
+	 * @param type the dependency type to query for
+	 * @return a collection of dependency entries
+	 */
+	@Override
+	public Collection<ModDependencies.Entry> getForType(Type type) {
+		return entries.get(type);
+	}
+
+	/**
+	 * Get entries that depend on a specific mod's id
+	 *
+	 * @param id the mod id to find dependency entries for
+	 * @return a collection of entries that depend on the given mod id
+	 */
+	@Override
+	public Collection<ModDependencies.Entry> getForModId(String id) {
+		List<ModDependencies.Entry> entries = new ArrayList<>();
+		for (Type type : Type.values()) {
+			for (ModDependencies.Entry entry : getForType(type)) {
+				if (entry.id().equals(id)) {
+					entries.add(entry);
+				}
+			}
+		}
+		return entries;
+	}
+
+	public record Entry(Type type, String id, String range, String link, String name) implements ModDependencies.Entry {
+	}
+
+}

src/main/java/dev/frogmc/frogloader/impl/mod/ModDependencyResolver.java

@@ -8,6 +8,7 @@ import java.util.stream.Collectors;
 
 import com.google.common.collect.Multimap;
 import com.google.common.collect.MultimapBuilder;
+
 import dev.frogmc.frogloader.api.mod.ModDependencies;
 import dev.frogmc.frogloader.api.mod.ModProperties;
 import dev.frogmc.frogloader.api.mod.SemVer;

src/main/java/dev/frogmc/frogloader/impl/mod/ModPropertiesReader.java

@@ -7,6 +7,7 @@ import java.nio.file.FileSystem;
 import java.nio.file.FileSystems;
 import java.nio.file.Path;
 import java.util.*;
+import java.util.function.BiFunction;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 
@@ -14,6 +15,7 @@ import com.electronwill.nightconfig.core.CommentedConfig;
 import com.electronwill.nightconfig.core.UnmodifiableConfig;
 import com.electronwill.nightconfig.core.file.FileNotFoundAction;
 import com.electronwill.nightconfig.toml.TomlParser;
+
 import dev.frogmc.frogloader.api.mod.ModDependencies;
 import dev.frogmc.frogloader.api.mod.ModExtensions;
 import dev.frogmc.frogloader.api.mod.ModProperties;
@@ -124,7 +126,7 @@ public class ModPropertiesReader {
 				}
 			}
 
-			Function<String, Collection<ModDependencies.Entry>> parseDependencies = key -> {
+			BiFunction<ModDependencies.Type, String, Collection<ModDependencies.Entry>> parseDependencies = (type, key) -> {
 				Collection<ModDependencies.Entry> result = new HashSet<>();
 
 				List<UnmodifiableConfig> dependenciesConfig = config.get("frog.dependencies." + key);
@@ -138,7 +140,7 @@ public class ModPropertiesReader {
 						if (entryId == null || entryId.isEmpty())
 							badProperties.add("frog.dependencies." + key + '.' + i + ".id");
 
-						result.add(new ModDependencies.Entry(entryId, entryVersions, entry.get("link"), entry.get("name")));
+						result.add(new ModDependenciesImpl.Entry(type, entryId, entryVersions, entry.get("link"), entry.get("name")));
 
 						++i;
 					}
@@ -148,10 +150,10 @@ public class ModPropertiesReader {
 			};
 
 
-			var depends = parseDependencies.apply("depends");
-			var breaks = parseDependencies.apply("breaks");
-			var suggests = parseDependencies.apply("suggests");
-			var provides = parseDependencies.apply("provides");
+			var depends = parseDependencies.apply(ModDependencies.Type.DEPEND, "depends");
+			var breaks = parseDependencies.apply(ModDependencies.Type.BREAK, "breaks");
+			var suggests = parseDependencies.apply(ModDependencies.Type.SUGGEST, "suggests");
+			var provides = parseDependencies.apply(ModDependencies.Type.PROVIDE, "provides");
 
 			UnmodifiableConfig extensionsConfig = config.get("frog.extensions");
 			Map<ModExtensionsImpl.Key, Object> extensions = new HashMap<>();
@@ -169,7 +171,7 @@ public class ModPropertiesReader {
 
 
 			return new ModPropertiesImpl(id, name, icon, semVer, license, Collections.unmodifiableMap(credits),
-					new ModDependencies(depends, breaks, suggests, provides), new ModExtensionsImpl(extensions), sources);
+					new ModDependenciesImpl(depends, breaks, suggests, provides), new ModExtensionsImpl(extensions), sources);
 		});
 
 		private static final Map<String, Parser> versions = Arrays.stream(values()).collect(Collectors.toMap(v -> v.version, v -> v.parser));

src/main/java/dev/frogmc/frogloader/impl/plugin/game/minecraft/MinecraftGamePlugin.java

@@ -16,11 +16,11 @@ import java.util.stream.Collectors;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonObject;
 import dev.frogmc.frogloader.api.FrogLoader;
-import dev.frogmc.frogloader.api.mod.ModDependencies;
 import dev.frogmc.frogloader.api.mod.ModExtensions;
 import dev.frogmc.frogloader.api.mod.ModProperties;
 import dev.frogmc.frogloader.api.plugin.GamePlugin;
 import dev.frogmc.frogloader.impl.FrogLoaderImpl;
+import dev.frogmc.frogloader.impl.mod.ModDependenciesImpl;
 import dev.frogmc.frogloader.impl.mod.ModExtensionsImpl;
 import dev.frogmc.frogloader.impl.mod.ModPropertiesImpl;
 import dev.frogmc.frogloader.impl.util.SystemProperties;
@@ -204,7 +204,7 @@ public class MinecraftGamePlugin implements GamePlugin {
 		return new ModPropertiesImpl("minecraft", "Minecraft", "/assets/minecraft/textures/block/grass_block_side.png",
 				MinecraftSemVerImpl.get(version), "MC-EULA",
 				Map.of("Mojang AB", Collections.singleton("Author")),
-				new ModDependencies(Collections.emptySet(), Collections.emptySet(), Collections.emptySet(), Collections.emptySet()),
+				new ModDependenciesImpl(Collections.emptySet(), Collections.emptySet(), Collections.emptySet(), Collections.emptySet()),
 				new ModExtensionsImpl(Collections.emptyMap()), Collections.emptySet());
 	}
 }