// SPDX-License-Identifier: GPL-2.0-or-later
#include "custom-tooltip.h"
#include "gtkmm/box.h"
#include "gtkmm/label.h"
#include "gtkmm/image.h"
#include <ctime>
#include <chrono>
#include <gdk/gdk.h>

static gint timeoutid = -1;

static 
gboolean
delaytooltip (gpointer data)
{
    GdkDisplay *display = reinterpret_cast<GdkDisplay *>(data); 
    gtk_tooltip_trigger_tooltip_query(display);
    return true;
}

void sp_clear_custom_tooltip()
{
    if (timeoutid != -1) {
        g_source_remove(timeoutid);
        timeoutid = -1;
    }
}

bool
sp_query_custom_tooltip(int x, int y, bool keyboard_tooltip, const Glib::RefPtr<Gtk::Tooltip>& tooltipw, gint id, Glib::ustring tooltip, Glib::ustring icon, Gtk::IconSize iconsize, int delaytime)
{
    sp_clear_custom_tooltip();

    static gint last = -1;
    static auto start = std::chrono::steady_clock::now();
    auto end = std::chrono::steady_clock::now();
    if (last != id) {
        start = std::chrono::steady_clock::now();
        last = id;
    }
    Gtk::Box *box = Gtk::make_managed<Gtk::Box>();
    Gtk::Label *label = Gtk::make_managed<Gtk::Label>();
    label->set_line_wrap(true);
    label->set_markup(tooltip);
    label->set_max_width_chars(40);
    if (icon != "") {
        box->pack_start(*Gtk::make_managed<Gtk::Image>(icon, iconsize), true, true, 2);
    }
    box->pack_start(*label, true, true, 2);
    tooltipw->set_custom(*box);
    box->get_style_context()->add_class("symbolic");
    box->show_all_children();
    auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
    if (elapsed.count() / delaytime < 0.5) {
        GdkDisplay *display = gdk_display_get_default();
        if (display) {
            timeoutid = g_timeout_add(501-elapsed.count(), delaytooltip, display);
        }
    }
    return elapsed.count() / delaytime > 0.5;
}