Added libcairo as a dependancy

src/Commands/GenerativeCommands.cpp

@@ -3,8 +3,46 @@
 #include <dpp/dispatcher.h>
 #include <dpp/dpp.h>
 #include <dpp/guild.h>
+#include <dpp/message.h>
+#include <dpp/misc-enum.h>
+#include <dpp/queues.h>
 #include <dpp/snowflake.h>
 #include <dpp/user.h>
 
+#include <cairo/cairo.h>
+
+#include <functional>
+#include <string>
+#include <unordered_map>
+
+void pngToCairoSurface(std::string data) {
+  cairo_surface_t *image =
+      cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 300, 200);
+}
+void jpegToCairoSurface(std::string data) {}
+void webpToCairoSurface(std::string data) {}
+
+std::unordered_map<std::string, std::function<void(std::string)>>
+    supportedImageFileTypes{{"image/png", pngToCairoSurface},
+                            {"image/jpeg", jpegToCairoSurface},
+                            {"image/webp", webpToCairoSurface}};
+
 void commandGenerateReport(const dpp::slashcommand_t &event,
-                           dpp::cluster &bot) {}
+                           dpp::cluster &bot) {
+  event.thinking();
+  dpp::snowflake fileId =
+      std::get<dpp::snowflake>(event.get_parameter("image"));
+  dpp::attachment file = event.command.get_resolved_attachment(fileId);
+  auto fileType = supportedImageFileTypes.find(file.content_type);
+  if (fileType != supportedImageFileTypes.end()) {
+    bot.request(
+        file.url, dpp::http_method::m_get,
+        [event, &bot, fileType](const dpp::http_request_completion_t &result) {
+          fileType->second(result.body);
+        });
+  } else {
+    event.edit_response(
+        "File type: " + file.content_type +
+        " is not allowed. Only PNG, JPEG, and WEBP are allowed!");
+  }
+}