Add webview
diff --git a/webview-frontend.cpp b/webview-frontend.cpp
new file mode 100644
index 0000000..c9c008a
--- /dev/null
+++ b/webview-frontend.cpp
@@ -0,0 +1,63 @@
+#include <iostream>
+#include <stdio.h>
+#include "webview/webview.h"
+#include "nlohmann/json.hpp"
+#include "bundle-webview-js.h"
+
+using json = nlohmann::json;
+
+extern "C" {
+    extern void do_a_conversion(char *, char *);
+}
+
+extern char log_buffer[4096];
+extern char *log_buffer_ptr;
+
+
+std::string convert(std::string arg) {
+	std::cout << "Params: " << arg << std::endl;
+    json j = json::parse(arg);
+    
+    auto from = j[0].template get<std::string>(),
+        to = j[1].template get<std::string>();
+        
+    std::cout << from << ' ' << to << std::endl;
+    
+    do_a_conversion((char *)from.data(), (char *)to.data());
+    std::string res = json(std::string(log_buffer, log_buffer_ptr - log_buffer)).dump();
+    log_buffer_ptr = log_buffer;
+    std::cout << res << std::endl;
+    return res;
+}
+
+std::string get_html() {
+    return std::string("<div id=app></div><script>") + std::string((const char *)bundle_webview_js, bundle_webview_js_len) + std::string("</script>");
+}
+
+#ifdef WIN32
+int WINAPI WinMain(HINSTANCE hInt, HINSTANCE hPrevInst, LPSTR lpCmdLine,
+                   int nCmdShow) {
+#else
+int main() {
+#endif
+    // cookie_io_functions_t iofns = {NULL};
+    // iofns.cookie_write_function_t = writer;
+    //
+    // stdout = fopencookie(NULL, "r", iofns);
+    
+    try {
+        webview::webview w(false, nullptr);
+        w.set_title("Units");
+        w.set_size(480, 320, WEBVIEW_HINT_NONE);
+        w.bind("convert", convert);
+        w.set_html(get_html());
+        // w.navigate("http://localhost:8000/index-webview.html");
+        w.run();
+    } catch (const webview::exception &e) {
+        std::cerr << e.what() << std::endl;
+        return 1;
+    }
+
+    
+	return 0;
+}