use of C++23 code

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

components/storage/CMakeLists.txt

@@ -0,0 +1,26 @@
+set(STORAGE_VERSION_MAJOR 1)
+set(STORAGE_VERSION_MINOR 0)
+set(STORAGE_VERSION_PATCH 0)
+set(STORAGE_VERSION "${STORAGE_VERSION_MAJOR}.${STORAGE_VERSION_MINOR}.${STORAGE_VERSION_PATCH}")
+
+configure_file(
+    ${CMAKE_CURRENT_SOURCE_DIR}/version.h.in
+    ${CMAKE_CURRENT_BINARY_DIR}/include/storage/version.h
+    @ONLY
+)
+
+set(STORAGE_SRC
+        src/storage.cpp
+)
+
+add_library(storage SHARED ${STORAGE_SRC})
+set_target_properties(storage PROPERTIES
+        VERSION ${STORAGE_VERSION}
+        SOVERSION ${STORAGE_VERSION_MAJOR}
+)
+
+target_include_directories(storage
+        PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/include
+        ${CMAKE_CURRENT_BINARY_DIR}/include
+)

components/storage/include/storage/storage.h

@@ -0,0 +1,50 @@
+// MIT License
+// Copyright (c) 2026 by Peter Siegmund (mars3142)
+// 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.
+
+#pragma once
+
+#include "storage/storage_error.h"
+
+#include <expected>
+#include <string>
+#include <vector>
+
+namespace storage {
+
+class Storage {
+public:
+  /**
+   * Liest eine Datei von einem Pfad.
+   * @param path Der Dateipfad.
+   * @return Ein expected mit den Dateidaten oder einem StorageError.
+   */
+  [[nodiscard]] std::expected<std::vector<uint8_t>, StorageError> readFile(
+      const std::string &path) const;
+
+  /**
+   * Schreibt Daten in eine Datei.
+   * @param path Der Dateipfad.
+   * @param data Die zu schreibenden Daten.
+   * @return Ein expected<void> oder einem StorageError.
+   */
+  [[nodiscard]] std::expected<void, StorageError> writeFile(
+      const std::string &path,
+      const std::vector<uint8_t> &data) const;
+};
+
+} // namespace storage

components/storage/include/storage/storage_error.h

@@ -0,0 +1,29 @@
+// MIT License
+// Copyright (c) 2026 by Peter Siegmund (mars3142)
+// 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.
+
+#pragma once
+
+namespace storage {
+
+enum class StorageError {
+  FileNotFound,
+  ReadError,
+  WriteError,
+};
+
+} // namespace storage

components/storage/src/storage.cpp

@@ -0,0 +1,59 @@
+// MIT License
+// Copyright (c) 2026 by Peter Siegmund (mars3142)
+// 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.
+
+#include "storage/storage.h"
+
+#include <fstream>
+
+namespace storage {
+
+std::expected<std::vector<uint8_t>, StorageError> Storage::readFile(
+    const std::string &path) const {
+  std::ifstream file(path, std::ios::binary | std::ios::ate);
+  if (!file) {
+    return std::unexpected(StorageError::FileNotFound);
+  }
+
+  const std::streamsize size = file.tellg();
+  if (size < 0) {
+    return std::unexpected(StorageError::ReadError);
+  }
+  file.seekg(0, std::ios::beg);
+
+  std::vector<uint8_t> data(static_cast<size_t>(size));
+  if (!file.read(reinterpret_cast<char *>(data.data()), size)) {
+    return std::unexpected(StorageError::ReadError);
+  }
+  return data;
+}
+
+std::expected<void, StorageError> Storage::writeFile(
+    const std::string &path,
+    const std::vector<uint8_t> &data) const {
+  std::ofstream file(path, std::ios::binary);
+  if (!file) {
+    return std::unexpected(StorageError::WriteError);
+  }
+  file.write(reinterpret_cast<const char *>(data.data()), data.size());
+  if (!file.good()) {
+    return std::unexpected(StorageError::WriteError);
+  }
+  return {};
+}
+
+} // namespace storage

components/storage/version.h.in

@@ -0,0 +1,7 @@
+#pragma once
+
+#define STORAGE_VERSION_MAJOR @STORAGE_VERSION_MAJOR@
+#define STORAGE_VERSION_MINOR @STORAGE_VERSION_MINOR@
+#define STORAGE_VERSION_PATCH @STORAGE_VERSION_PATCH@
+#define STORAGE_VERSION "@STORAGE_VERSION@"
+