From 577fc0845718ed8ad5bebf02a277c0579a817f77 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@gmail.com>
Date: Fri, 17 May 2024 17:58:38 +0200
Subject: wanda: restructure source layout

---
 source/lib/include/wanda/system/magic.hpp | 58 +++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 source/lib/include/wanda/system/magic.hpp

(limited to 'source/lib/include/wanda/system/magic.hpp')

diff --git a/source/lib/include/wanda/system/magic.hpp b/source/lib/include/wanda/system/magic.hpp
new file mode 100644
index 0000000..a8ea1ba
--- /dev/null
+++ b/source/lib/include/wanda/system/magic.hpp
@@ -0,0 +1,58 @@
+#ifndef WANDA_SYSTEM_MAGIC_HPP
+#define WANDA_SYSTEM_MAGIC_HPP
+
+#include <magic.h>
+
+#include <filesystem>
+#include <memory>
+#include <string>
+#include <type_traits>
+
+namespace wanda::system
+{
+  struct magic
+  {
+    struct closer
+    {
+      auto operator()(magic_t handle) const noexcept -> void
+      {
+        magic_close(handle);
+      }
+    };
+
+    enum struct mime_type
+    {
+      unknown,
+      image_jpeg,
+      image_png,
+    };
+
+    magic()
+        : m_handle{magic_open(MAGIC_MIME_TYPE)}
+    {
+      magic_load(m_handle.get(), nullptr);
+    }
+
+    auto type(std::filesystem::path path) -> mime_type
+    {
+      auto magic_type = std::string{magic_file(m_handle.get(), path.native().c_str())};
+
+      if (magic_type == "image/jpeg")
+      {
+        return mime_type::image_jpeg;
+      }
+      else if (magic_type == "image/png")
+      {
+        return mime_type::image_png;
+      }
+
+      return mime_type::unknown;
+    }
+
+  private:
+    std::unique_ptr<std::remove_pointer_t<magic_t>, closer> m_handle;
+  };
+
+}  // namespace wanda::system
+
+#endif
\ No newline at end of file
-- 
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