feat: add updater

src/render/gui/UpdateMenu.cpp

@@ -0,0 +1,82 @@
+#include "render/gui/UpdateMenu.h"
+
+#include "render/gui/imgui/imgui.h"
+
+#include <chrono>
+
+namespace td {
+namespace gui {
+
+UpdateMenu::UpdateMenu(client::Client* client) : GuiWidget(client), m_Opened(true) {
+    checkUpdates();
+}
+
+void UpdateMenu::render() {
+    renderErrorPopup();
+    if (m_Opened) {
+        ImGui::Begin("Updater", &m_Opened);
+        if (isUpdateChecked()) {
+
+            bool updateAvailable = m_UpdateAvailable.get();
+            if (updateAvailable) {
+
+                if(m_Updater.isFileWrited()){
+                    ImGui::Text("The update is now installed");
+                    ImGui::Text("The game needs to be restarted");
+                }else if (m_Updater.isDownloadComplete()) {
+                    ImGui::Text("Download done!");
+                    if(ImGui::Button("Install")){
+                        if(!m_Updater.writeFile()){
+                            m_Error = "Failed to write file !\n";
+                            ImGui::OpenPopup("UpdateError");
+                        }
+                    }
+                    if(ImGui::Button("Cancel")){
+                        m_Updater.cancelDownload();
+                        m_Updater.clearCache();
+                    }
+                } else {
+                    if (m_Updater.getDownloadProgress() > 0) {
+                        ImGui::Text("Downloading ...");
+                        ImGui::ProgressBar(m_Updater.getDownloadProgress());
+                        if (ImGui::Button("Cancel")) {
+                            m_Updater.cancelDownload();
+                        }
+                    } else {
+                        ImGui::Text("An update is available!");
+                        if (ImGui::Button("Download")) {
+                            m_Updater.downloadUpdate();
+                        }
+                        ImGui::SameLine();
+                        if (ImGui::Button("Cancel")) {
+                            m_Opened = false;
+                        }
+                    }
+                }
+            } else {
+                ImGui::Text("No update available!");
+            }
+        } else {
+            ImGui::Text("Checking updates ...");
+        }
+        ImGui::End();
+    }
+}
+
+void UpdateMenu::renderErrorPopup(){
+    if(ImGui::BeginPopup("UpdateError")){
+        ImGui::Text("Error : %s", m_Error.c_str());
+        ImGui::EndPopup();
+    }
+}
+
+bool UpdateMenu::isUpdateChecked() {
+    return m_UpdateAvailable.wait_for(std::chrono::seconds(0)) == std::future_status::ready;
+}
+
+void UpdateMenu::checkUpdates() {
+    m_UpdateAvailable = std::async(std::launch::async, [&]() { return m_Updater.checkUpdate();});
+}
+
+} // namespace gui
+} // namespace td