#include <stdio.h>
#include <gtk/gtk.h>
#include <gtk/gtkunixprint.h>
#include <webkit2/webkit2.h>


void gtk_wait() {
  while (gtk_events_pending()) {
        gtk_main_iteration_do(true);
    }
}

gboolean find_file_printer(GtkPrinter* printer, char** data) {
  printf("check_printer\n");
    if (!g_strcmp0(G_OBJECT_TYPE_NAME(gtk_printer_get_backend(printer)), "GtkPrintBackendFile")) {
        *data = g_strdup(gtk_printer_get_name(printer));
        return TRUE;
    }
    return FALSE;
}

void printFinished(WebKitPrintOperation* op, gpointer data) {
  printf("finished\n");
}
void printFailed(WebKitPrintOperation* op, gpointer error, gpointer data) {
  printf("failed\n");
}

int main(int argc, char** argv) {
  printf("gtk_init\n");
  gtk_init(0, NULL);
  printf("new_window\n");
  GtkWidget* window = gtk_offscreen_window_new();
  gtk_window_set_default_size(GTK_WINDOW(window), 1024, 768);

  printf("create_webview\n");
  WebKitWebView* webView = WEBKIT_WEB_VIEW(webkit_web_view_new());
  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(webView));

  printf("load_uri\n");
  webkit_web_view_load_uri(webView, "http://http.rip/");

  // Make sure that when the browser area becomes visible, it will get mouse
  // and keyboard events
  printf("get_focus\n");
  gtk_widget_grab_focus(GTK_WIDGET(webView));

  // Make sure the main window and all its contents are visible
  printf("show\n");
  gtk_widget_show_all(window);

  printf("wait\n");
  // Run the main GTK+ event loop
  gtk_wait();

  printf("page_setup\n");
  WebKitPrintOperation* op = webkit_print_operation_new(webView);
  GtkPageSetup* setup = gtk_page_setup_new();
  GtkPaperSize* paperSize = gtk_paper_size_new(gtk_paper_size_get_default());
    gtk_page_setup_set_paper_size_and_default_margins(setup, paperSize);
  gtk_page_setup_set_left_margin(setup, 0, GTK_UNIT_POINTS);
  gtk_page_setup_set_right_margin(setup, 0, GTK_UNIT_POINTS);
  gtk_page_setup_set_top_margin(setup, 0, GTK_UNIT_POINTS);
  gtk_page_setup_set_bottom_margin(setup, 0, GTK_UNIT_POINTS);
    webkit_print_operation_set_page_setup(op, setup);

    // settings
  printf("settings\n");
    GtkPrintSettings* settings = gtk_print_settings_new();
    gtk_print_settings_set_orientation(settings, GTK_PAGE_ORIENTATION_PORTRAIT);
    gtk_print_settings_set_quality(settings, GTK_PRINT_QUALITY_HIGH);

  printf("printer\n");
    char* printer = NULL;
    gtk_enumerate_printers((GtkPrinterFunc)find_file_printer, &printer, NULL, TRUE);
  printf("found_printer %s\n", printer);
    gtk_print_settings_set_printer(settings, printer);
    //delete printer;
  printf("set_output\n");
    // gtk_print_settings_set (settings, GTK_PRINT_SETTINGS_OUTPUT_BASENAME, "gtk-demo");
  // gtk_print_settings_set(settings, GTK_PRINT_SETTINGS_OUTPUT_FILE_FORMAT, "PDF");
    // webkit_print_operation_set_print_settings(op, settings);

    // print
    g_signal_connect(op, "failed", G_CALLBACK(printFailed), NULL);
    g_signal_connect(op, "finished", G_CALLBACK(printFinished), NULL);
  printf("do_print\n");
    webkit_print_operation_print(op);
  printf("cleanup\n");
  gtk_wait();
    g_object_unref(op);
    g_object_unref(settings);

  return 0;
}