/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
 *  Copyright © 2016 Gabriel Ivascu <gabrielivascu@gnome.org>
 *
 *  This file is part of Epiphany.
 *
 *  Epiphany is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Epiphany is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Epiphany.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"
#include "ephy-notification.h"

#include "ephy-notification-container.h"

struct _EphyNotification {
  GtkFrame parent_instance;

  GtkWidget *grid;

  GtkWidget *head;
  GtkWidget *body;
  GtkWidget *close_button;

  char *head_msg;
  char *body_msg;
};

struct _EphyNotificationClass {
  GtkFrameClass parent_class;
};

enum {
  PROP_0,
  PROP_HEAD,
  PROP_BODY
};

G_DEFINE_TYPE (EphyNotification, ephy_notification, GTK_TYPE_GRID);

static void
ephy_notification_constructed (GObject *object)
{
  EphyNotification *self = EPHY_NOTIFICATION (object);

  G_OBJECT_CLASS (ephy_notification_parent_class)->constructed (object);

  gtk_label_set_text (GTK_LABEL (self->head), self->head_msg);
  gtk_label_set_text (GTK_LABEL (self->body), self->body_msg);
}

static void
ephy_notification_finalize (GObject *object)
{
  EphyNotification *self = EPHY_NOTIFICATION (object);

  g_free (self->head_msg);
  g_free (self->body_msg);

  G_OBJECT_CLASS (ephy_notification_parent_class)->finalize (object);
}

static void
ephy_notification_set_property (GObject      *object,
                                guint         prop_id,
                                const GValue *value,
                                GParamSpec   *pspec)
{
  EphyNotification *self = EPHY_NOTIFICATION (object);

  switch (prop_id) {
    case PROP_HEAD:
      self->head_msg = g_value_dup_string (value);
      break;
    case PROP_BODY:
      self->body_msg = g_value_dup_string (value);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
}

static void
ephy_notification_get_property (GObject    *object,
                                guint       prop_id,
                                GValue     *value,
                                GParamSpec *pspec)
{
  EphyNotification *self = EPHY_NOTIFICATION (object);

  switch (prop_id) {
    case PROP_HEAD:
      g_value_set_string (value, self->head_msg);
      break;
    case PROP_BODY:
      g_value_set_string (value, self->body_msg);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
  }
}

static void
close_button_clicked_cb (GtkButton        *button,
                         EphyNotification *self)
{
  EphyNotificationContainer *container = ephy_notification_container_get_default ();

  /* gtk_widget_destroy() removes the widget from its parent container. */
  gtk_widget_destroy (GTK_WIDGET (self));

  if (ephy_notification_container_get_num_children (container) == 0) {
    gtk_widget_hide (GTK_WIDGET (container));
    gtk_revealer_set_reveal_child (GTK_REVEALER (container), FALSE);
  }
}

static void
ephy_notification_init (EphyNotification *self)
{
  GtkWidget *image;
  GtkStyleContext *context;

  self->grid = gtk_grid_new ();
  context = gtk_widget_get_style_context (self->grid);
  gtk_style_context_add_class (context, "app-notification");
  gtk_container_add (GTK_CONTAINER (self), self->grid);

  self->head = gtk_label_new (NULL);
  gtk_label_set_line_wrap (GTK_LABEL (self->head), TRUE);
  gtk_widget_set_halign (self->head, GTK_ALIGN_CENTER);
  gtk_widget_set_hexpand (self->head, TRUE);
  gtk_grid_attach (GTK_GRID (self->grid), self->head, 0, 0, 1, 1);

  self->body = gtk_label_new (NULL);
  gtk_label_set_line_wrap (GTK_LABEL (self->body), TRUE);
  gtk_widget_set_halign (self->body, GTK_ALIGN_CENTER);
  gtk_widget_set_hexpand (self->body, TRUE);
  gtk_grid_attach (GTK_GRID (self->grid), self->body, 0, 1, 1, 1);

  self->close_button = gtk_button_new ();
  g_object_set (self->close_button,
                "relief", GTK_RELIEF_NONE,
                "focus-on-click", FALSE,
                "margin", 6,
                NULL);
  gtk_grid_attach (GTK_GRID (self->grid), self->close_button, 1, 0, 1, 2);

  image = gtk_image_new_from_icon_name ("window-close-symbolic", GTK_ICON_SIZE_BUTTON);
  gtk_button_set_image (GTK_BUTTON (self->close_button), image);

  g_signal_connect (self->close_button,
                    "clicked",
                    G_CALLBACK (close_button_clicked_cb),
                    self);
}

static void
ephy_notification_class_init (EphyNotificationClass *klass)
{
  GObjectClass *object_class = G_OBJECT_CLASS (klass);

  object_class->constructed = ephy_notification_constructed;
  object_class->finalize = ephy_notification_finalize;
  object_class->set_property = ephy_notification_set_property;
  object_class->get_property = ephy_notification_get_property;

  g_object_class_install_property (object_class,
                                   PROP_HEAD,
                                   g_param_spec_string ("head",
                                                        "Head",
                                                        "The notification head",
                                                        "",
                                                        G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE));
  g_object_class_install_property (object_class,
                                   PROP_BODY,
                                   g_param_spec_string ("body",
                                                        "Body",
                                                        "The notification body",
                                                        "",
                                                        G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY | G_PARAM_WRITABLE));
}

EphyNotification *
ephy_notification_new (const char *head,
                       const char *body)
{
  return g_object_new (EPHY_TYPE_NOTIFICATION,
                       "column-spacing", 12,
                       "orientation", GTK_ORIENTATION_HORIZONTAL,
                       "head", head,
                       "body", body,
                       NULL);
}

void
ephy_notification_show (EphyNotification *self)
{
  g_assert (EPHY_IS_NOTIFICATION (self));

  ephy_notification_container_add_notification (ephy_notification_container_get_default (),
                                                GTK_WIDGET (self));
}

gboolean
ephy_notification_is_duplicate (EphyNotification *notification_a,
                                EphyNotification *notification_b)
{
  return g_strcmp0 (notification_a->head_msg, notification_b->head_msg) == 0 && g_strcmp0 (notification_a->body_msg, notification_b->body_msg) == 0;
}