Add VersionType class for SOSVS

base/src/main/kotlin/de/staropensource/engine/base/type/versioning/VersionType.kt

@@ -0,0 +1,148 @@
+/*
+ * STAROPENSOURCE ENGINE SOURCE FILE
+ * Copyright (c) 2024 The StarOpenSource Engine Authors
+ * Licensed under the GNU Affero General Public License v3
+ * with an exception allowing classpath linking.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.staropensource.engine.base.type.versioning
+
+/**
+ * Contains all version types of all
+ * [SOSVS](z.staropensource.de/spec-versioning)
+ * specifications.
+ *
+ * @since v1-alpha10
+ */
+class VersionType {
+    /**
+     * Represents the version types
+     * found in the [second iteration](z.staropensource.de/spec-versioning-v2)
+     * of the [SOSVS specification](z.staropensource.de/spec-versioning).
+     *
+     * @since v1-alpha10
+     */
+    enum class V2 {
+        /**
+         * Identifies the work as experimental.
+         *
+         * The work may have many unresolved
+         * issues and may change significantly
+         * during further development.
+         *
+         * Usage is not recommended.
+         *
+         * @since v1-alpha10
+         */
+        ALPHA,
+
+        /**
+         * Identifies the work as unstable.
+         *
+         * The work may have a few unresolved
+         * issues and may change from time to
+         * time during further development.
+         *
+         * Usage is not recommended.
+         *
+         * @since v1-alpha10
+         */
+        BETA,
+
+        /**
+         * Identifies the work as potentially
+         * stable. The work may have a few
+         * smaller issues but it's shape is
+         * final. No new features may be
+         * added anymore unless required.
+         *
+         * Usage only recommended for testers
+         * and early birds.
+         *
+         * @since v1-alpha10
+         */
+        RELEASECANDIDATE,
+
+        /**
+         * Identifies the work as tested and
+         * stable.
+         *
+         * The work is finished and can be
+         * used without any problems.
+         *
+         * @since v1-alpha10
+         */
+        RELEASE;
+
+        /**
+         * Companion object of [V2].
+         *
+         * @since v1-alpha10
+         */
+        companion object {
+            /**
+             * Converts the specified string into
+             * the correct version type.
+             *
+             * @return matching version type or `null`
+             * @since v1-alpha10
+             */
+            fun of(string: String): V2? {
+                return when (string) {
+                    "alpha" -> ALPHA
+                    "beta" -> BETA
+                    "releasecandidate" -> RELEASECANDIDATE
+                    "release" -> RELEASE
+                    else -> null
+                }
+            }
+        }
+
+        /**
+         * Returns this version type
+         * as it's proper string
+         * representation.
+         *
+         * @return string representation
+         * @since v1-alpha10
+         */
+        override fun toString(): String {
+            return when (this) {
+                ALPHA -> "alpha"
+                BETA -> "beta"
+                RELEASECANDIDATE -> "releasecandidate"
+                RELEASE -> "release"
+            }
+        }
+
+        /**
+         * Returns this version type
+         * as it's proper byte
+         * representation.
+         *
+         * @return byte representation
+         * @since v1-alpha10
+         */
+        fun toUByte(): UByte {
+            return when (this) {
+                ALPHA -> 0u
+                BETA -> 1u
+                RELEASECANDIDATE -> 2u
+                RELEASE -> 3u
+            }
+        }
+    }
+}

base/src/main/kotlin/de/staropensource/engine/base/type/versioning/package-info.kt

@@ -0,0 +1,27 @@
+/*
+ * STAROPENSOURCE ENGINE SOURCE FILE
+ * Copyright (c) 2024 The StarOpenSource Engine Authors
+ * Licensed under the GNU Affero General Public License v3
+ * with an exception allowing classpath linking.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Data types used for representing
+ * versioning information.
+ *
+ * @since v1-alpha10
+ */
+package de.staropensource.engine.base.type.versioning;