#include <gtk/gtk.h>

int shortcut_ui_open(const char *title, const char **groups, const char **labels, const char **keys, int count) {
    if (!gtk_init_check(NULL, NULL)) return 0;
    GtkWidget *dialog = gtk_dialog_new_with_buttons(title, NULL, GTK_DIALOG_MODAL,
                                                     "_Close", GTK_RESPONSE_CLOSE, NULL);
    gtk_window_set_default_size(GTK_WINDOW(dialog), 900, 700);
    GtkWidget *scrolled = gtk_scrolled_window_new(NULL, NULL);
    gtk_widget_set_vexpand(scrolled, TRUE);
    gtk_widget_set_hexpand(scrolled, TRUE);
    gtk_container_add(GTK_CONTAINER(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), scrolled);
    GtkTreeStore *store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_STRING);
    GtkWidget *tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
    gtk_widget_set_can_focus(tree, TRUE);
    atk_object_set_name(gtk_widget_get_accessible(tree), "Cthulhu shortcuts");
    gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree), TRUE);
    const char *headers[] = {"Function", "Key binding"};
    for (int column = 0; column < 2; column++) {
        GtkCellRenderer *renderer = gtk_cell_renderer_text_new();
        GtkTreeViewColumn *view = gtk_tree_view_column_new_with_attributes(headers[column], renderer,
                                                                           "text", column, NULL);
        gtk_tree_view_column_set_sort_column_id(view, column);
        gtk_tree_view_append_column(GTK_TREE_VIEW(tree), view);
    }
    gtk_container_add(GTK_CONTAINER(scrolled), tree);
    GtkTreeIter parent, child, first;
    gboolean have_first = FALSE;
    const char *previous = NULL;
    for (int i = 0; i < count; i++) {
        if (!previous || g_strcmp0(previous, groups[i]) != 0) {
            gtk_tree_store_append(store, &parent, NULL);
            gtk_tree_store_set(store, &parent, 0, groups[i], 1, "", -1);
            previous = groups[i];
        }
        gtk_tree_store_append(store, &child, &parent);
        gtk_tree_store_set(store, &child, 0, labels[i], 1, keys[i], -1);
        if (!have_first) { first = child; have_first = TRUE; }
    }
    gtk_tree_view_expand_all(GTK_TREE_VIEW(tree));
    gtk_widget_show_all(dialog);
    if (have_first) {
        GtkTreePath *path = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &first);
        gtk_tree_view_set_cursor(GTK_TREE_VIEW(tree), path, NULL, FALSE);
        gtk_tree_path_free(path);
    }
    gtk_widget_grab_focus(tree);
    gtk_dialog_run(GTK_DIALOG(dialog));
    gtk_widget_destroy(dialog);
    g_object_unref(store);
    return 1;
}