/*
 * Copyright 2014 (c) Anna Schumaker.
 */
#include <core/audio.h>
#include <core/playlist.h>
#include <core/string.h>
#include <gui/artwork.h>
#include <gui/audio.h>
#include <gui/idle.h>
#include <gui/playlist.h>
#include <gui/treeview.h>
#include <gui/window.h>

static guint audio_timeout = 0;

static inline void __gui_audio_set_label_markup(GtkLabel    *label,
						const gchar *size,
						const gchar *text)
{
	const gchar *fmt = "<span size='%s'>%s</span>";
	gchar    *markup = g_markup_printf_escaped(fmt, size, text);
	gtk_label_set_markup(label, markup);
	g_free(markup);
}

static void __gui_audio_load(struct track *track)
{
	gchar *duration = string_sec2str(track->tr_length);

	__gui_audio_set_label_markup(gui_title_tag(),  "xx-large",
				     track->tr_title);
	__gui_audio_set_label_markup(gui_album_tag(),  "x-large",
				     track->tr_album->al_name);
	__gui_audio_set_label_markup(gui_artist_tag(), "x-large",
				     track->tr_album->al_artist->ar_name);
	__gui_audio_set_label_markup(gui_duration(), "large", duration);
	__gui_audio_set_label_markup(gui_position(), "large", "0:00");
	gtk_adjustment_set_upper(gui_seek(), track->tr_length);

	gui_pl_system_track_loaded(track);
	gui_treeview_scroll();
	gui_artwork_set_cover();
	gui_idle_enable();
	g_free(duration);
}

static void __gui_audio_change_state(GstState state)
{
	bool playing = (state == GST_STATE_PLAYING);
	gtk_widget_set_visible(GTK_WIDGET(gui_play_button()),  !playing);
	gtk_widget_set_visible(GTK_WIDGET(gui_pause_button()),  playing);
}

static void __gui_audio_config_pause(int n)
{
	gtk_combo_box_set_active(GTK_COMBO_BOX(gui_pause_after()), n + 1);
}


struct audio_ops audio_ops = {
	.on_load         = __gui_audio_load,
	.on_state_change = __gui_audio_change_state,
	.on_config_pause = __gui_audio_config_pause,
};


void __gui_audio_pause_changed(GtkComboBox *combo, gpointer data)
{
	audio_pause_after(gtk_combo_box_get_active(combo) - 1);
}

void __gui_audio_seek(GtkRange *range, GtkScrollType type,
		      double value, gpointer data)
{
	audio_seek(value * GST_SECOND);
}

void __gui_audio_volume_changed(GtkScaleButton *button, gdouble value,
				gpointer data)
{
	audio_set_volume((unsigned int)value);
}

gboolean __gui_audio_can_accel(GtkWidget *widget, guint signal_id)
{
	g_signal_stop_emission_by_name(widget, "can-activate-accel");
	return !GTK_IS_ENTRY(gtk_window_get_focus(gui_window())) &&
	       gtk_widget_is_visible(widget) &&
	       gtk_widget_is_sensitive(widget);
}

void gui_audio_init()
{
	gtk_scale_button_set_value(gui_volume_button(), audio_get_volume());
	gtk_button_set_relief(GTK_BUTTON(gui_volume_button()), GTK_RELIEF_NORMAL);

	audio_timeout = g_timeout_add(500, gui_audio_timeout, NULL);
}

void gui_audio_deinit()
{
	g_source_remove(audio_timeout);
}

int gui_audio_timeout(gpointer data)
{
	gchar *position = string_sec2str(audio_position() / GST_SECOND);

	gtk_adjustment_set_upper(gui_seek(), audio_duration() / GST_SECOND);
	gtk_adjustment_set_value(gui_seek(), audio_position() / GST_SECOND);
	__gui_audio_set_label_markup(gui_position(), "large", position);

	g_free(position);
	return G_SOURCE_CONTINUE;
}