/*
 * This file Copyright (C) 2010-2014 Mnemosyne LLC
 *
 * This file is licensed by the GPL version 2. Works owned by the
 * Transmission project are granted a special exemption to clause 2 (b)
 * so that the bulk of its code can remain under the MIT license.
 * This exemption does not extend to derived works not owned by
 * the Transmission project.
 *
 * $Id$
 */

#include <string.h>

#include <glib/gi18n.h>
#include <gtk/gtk.h>

#include <libtransmission/transmission.h>

#include "actions.h"
#include "conf.h"
#include "tr-core.h"
#include "tr-prefs.h"

#include "icon-lock.h"
#include "icon-logo-24.h"
#include "icon-logo-48.h"
#include "icon-ratio.h"
#include "icon-turtle.h"
#include "icon-utilities.h"

#define UNUSED G_GNUC_UNUSED

static TrCore * myCore = NULL;
static GtkActionGroup * myGroup = NULL;

static void
action_cb (GtkAction * a, gpointer user_data)
{
    gtr_actions_handler (gtk_action_get_name (a), user_data);
}

static GtkRadioActionEntry sort_radio_entries[] =
{
    { "sort-by-activity",  NULL, N_("Sort by _Activity"),  NULL, NULL, 0 },
    { "sort-by-name",      NULL, N_("Sort by _Name"),      NULL, NULL, 1 },
    { "sort-by-progress",  NULL, N_("Sort by _Progress"),  NULL, NULL, 2 },
    { "sort-by-queue",     NULL, N_("Sort by _Queue"),     NULL, NULL, 3 },
    { "sort-by-ratio",     NULL, N_("Sort by Rati_o"),     NULL, NULL, 4 },
    { "sort-by-state",     NULL, N_("Sort by Stat_e"),     NULL, NULL, 5 },
    { "sort-by-age",       NULL, N_("Sort by A_ge"),       NULL, NULL, 6 },
    { "sort-by-time-left", NULL, N_("Sort by Time _Left"), NULL, NULL, 7 },
    { "sort-by-size",      NULL, N_("Sort by Si_ze"),      NULL, NULL, 8 }
};

static void
sort_changed_cb (GtkAction            * action UNUSED,
                 GtkRadioAction       * current,
                 gpointer               user_data UNUSED)
{
  const tr_quark key = TR_KEY_sort_mode;
  const int i = gtk_radio_action_get_current_value (current);
  const char * val = sort_radio_entries[i].name;

    gtr_core_set_pref (myCore, key, val);
}

static GtkToggleActionEntry show_toggle_entries[] =
{
    { "toggle-main-window", NULL, N_("_Show Transmission"), NULL, NULL, G_CALLBACK (action_cb), TRUE },
    { "toggle-message-log", NULL, N_("Message _Log"), NULL, NULL, G_CALLBACK (action_cb), FALSE }
};

static void
toggle_pref_cb (GtkToggleAction *  action,
                gpointer user_data UNUSED)
{
    const char *   key = gtk_action_get_name (GTK_ACTION (action));
    const gboolean val = gtk_toggle_action_get_active (action);

    gtr_core_set_pref_bool (myCore, tr_quark_new(key,-1), val);
}

static GtkToggleActionEntry  pref_toggle_entries[] =
{
    { "alt-speed-enabled", NULL, N_("Enable Alternative Speed _Limits"), NULL, NULL, G_CALLBACK (toggle_pref_cb), FALSE },
    { "compact-view",      NULL, N_("_Compact View"), "<alt>C", NULL, G_CALLBACK (toggle_pref_cb), FALSE },
    { "sort-reversed",     NULL, N_("Re_verse Sort Order"), NULL, NULL, G_CALLBACK (toggle_pref_cb), FALSE },
    { "show-filterbar",    NULL, N_("_Filterbar"), NULL, NULL, G_CALLBACK (toggle_pref_cb), FALSE },
    { "show-statusbar",    NULL, N_("_Statusbar"), NULL, NULL, G_CALLBACK (toggle_pref_cb), FALSE },
    { "show-toolbar",      NULL, N_("_Toolbar"), NULL, NULL, G_CALLBACK (toggle_pref_cb), FALSE }
};

static GtkActionEntry entries[] =
{
    { "file-menu", NULL, N_("_File"), NULL, NULL, NULL  },
    { "torrent-menu", NULL, N_("_Torrent"), NULL, NULL, NULL  },
    { "view-menu", NULL, N_("_View"), NULL, NULL, NULL  },
    { "sort-menu", NULL, N_("_Sort Torrents By"), NULL, NULL, NULL },
    { "queue-menu", NULL, N_("_Queue"), NULL, NULL, NULL },
    { "edit-menu", NULL, N_("_Edit"), NULL, NULL, NULL },
    { "help-menu", NULL, N_("_Help"), NULL, NULL, NULL },
    { "copy-magnet-link-to-clipboard",  GTK_STOCK_COPY, N_("Copy _Magnet Link to Clipboard"), "", NULL,  G_CALLBACK (action_cb) },
    { "open-torrent-from-url",  GTK_STOCK_OPEN, N_("Open _URL…"), "<control>U", N_("Open URL…"),  G_CALLBACK (action_cb) },
    { "open-torrent-toolbar",  GTK_STOCK_OPEN, NULL, NULL, N_("Open a torrent"),  G_CALLBACK (action_cb) },
    { "open-torrent-menu", GTK_STOCK_OPEN, NULL, NULL, N_("Open a torrent"), G_CALLBACK (action_cb) },
    { "torrent-start", GTK_STOCK_MEDIA_PLAY, N_("_Start"), "<control>S", N_("Start torrent"), G_CALLBACK (action_cb) },
    { "torrent-start-now", GTK_STOCK_MEDIA_PLAY, N_("Start _Now"), "<shift><control>S", N_("Start torrent now"), G_CALLBACK (action_cb) },
    { "show-stats", NULL, N_("_Statistics"), NULL, NULL, G_CALLBACK (action_cb) },
    { "donate", NULL, N_("_Donate"), NULL, NULL, G_CALLBACK (action_cb) },
    { "torrent-verify", NULL, N_("_Verify Local Data"), "<control>V", NULL, G_CALLBACK (action_cb) },
    { "torrent-stop", GTK_STOCK_MEDIA_PAUSE, N_("_Pause"), "<control>P", N_("Pause torrent"), G_CALLBACK (action_cb) },
    { "pause-all-torrents", GTK_STOCK_MEDIA_PAUSE, N_("_Pause All"), NULL, N_("Pause all torrents"), G_CALLBACK (action_cb) },
    { "start-all-torrents", GTK_STOCK_MEDIA_PLAY, N_("_Start All"), NULL, N_("Start all torrents"), G_CALLBACK (action_cb) },
    { "relocate-torrent", NULL, N_("Set _Location…"), NULL, NULL, G_CALLBACK (action_cb) },
    { "remove-torrent", GTK_STOCK_REMOVE, NULL, "Delete", N_("Remove torrent"), G_CALLBACK (action_cb) },
    { "delete-torrent", GTK_STOCK_DELETE, N_("_Delete Files and Remove"), "<shift>Delete", NULL, G_CALLBACK (action_cb) },
    { "new-torrent", GTK_STOCK_NEW, N_("_New…"), NULL, N_("Create a torrent"), G_CALLBACK (action_cb) },
    { "quit", GTK_STOCK_QUIT, N_("_Quit"), NULL, NULL, G_CALLBACK (action_cb) },
    { "select-all", GTK_STOCK_SELECT_ALL, N_("Select _All"), "<control>A", NULL, G_CALLBACK (action_cb) },
    { "deselect-all", NULL, N_("Dese_lect All"), "<shift><control>A", NULL, G_CALLBACK (action_cb) },
    { "edit-preferences", GTK_STOCK_PREFERENCES, NULL, NULL, NULL, G_CALLBACK (action_cb) },
    { "show-torrent-properties", GTK_STOCK_PROPERTIES, NULL, "<alt>Return", N_("Torrent properties"), G_CALLBACK (action_cb) },
    { "open-torrent-folder",  GTK_STOCK_OPEN, N_("Open Fold_er"), "<control>E", NULL, G_CALLBACK (action_cb) },
    { "show-about-dialog", GTK_STOCK_ABOUT, NULL, NULL, NULL, G_CALLBACK (action_cb) },
    { "help", GTK_STOCK_HELP, N_("_Contents"), "F1", NULL, G_CALLBACK (action_cb) },
    { "torrent-reannounce", GTK_STOCK_NETWORK, N_("Ask Tracker for _More Peers"), NULL, NULL, G_CALLBACK (action_cb) },
    { "queue-move-top", GTK_STOCK_GOTO_TOP, N_("Move to _Top"), NULL, NULL, G_CALLBACK (action_cb) },
    { "queue-move-up", GTK_STOCK_GO_UP, N_("Move _Up"), NULL, NULL, G_CALLBACK (action_cb) },
    { "queue-move-down", GTK_STOCK_GO_DOWN, N_("Move _Down"), NULL, NULL, G_CALLBACK (action_cb) },
    { "queue-move-bottom", GTK_STOCK_GOTO_BOTTOM, N_("Move to _Bottom"), NULL, NULL, G_CALLBACK (action_cb) },
    { "present-main-window", NULL, N_("Present Main Window"), NULL, NULL, G_CALLBACK (action_cb) }
};

typedef struct
{
    const guint8*   raw;
    const char *    name;
}
BuiltinIconInfo;

static const BuiltinIconInfo my_fallback_icons[] =
{
    { tr_icon_logo_48,  WINDOW_ICON          },
    { tr_icon_logo_24,  TRAY_ICON            },
    { tr_icon_logo_48,  NOTIFICATION_ICON    },
    { tr_icon_lock,     "transmission-lock"  },
    { utilities_icon,   "utilities"          },
    { blue_turtle,      "alt-speed-on"       },
    { grey_turtle,      "alt-speed-off"      },
    { ratio_icon,       "ratio"              }
};

static void
register_my_icons (void)
{
  int i;
  const int n = G_N_ELEMENTS (my_fallback_icons);
  GtkIconTheme * theme = gtk_icon_theme_get_default ();
  GtkIconFactory * factory = gtk_icon_factory_new ();

  gtk_icon_factory_add_default (factory);

  for (i=0; i<n; ++i)
    {
      const char * name = my_fallback_icons[i].name;

      if (!gtk_icon_theme_has_icon (theme, name))
        {
          GdkPixbuf * p;

          p = gdk_pixbuf_new_from_inline (-1, my_fallback_icons[i].raw, FALSE, NULL);

          if (p != NULL)
            {
              int width;
              GtkIconSet * icon_set;

              width = gdk_pixbuf_get_width (p);
              icon_set = gtk_icon_set_new_from_pixbuf (p);

              gtk_icon_theme_add_builtin_icon (name, width, p);
              gtk_icon_factory_add (factory, name, icon_set);

              g_object_unref (p);
              gtk_icon_set_unref (icon_set);
            }
        }
    }

  g_object_unref (G_OBJECT (factory));
}

static GtkUIManager * myUIManager = NULL;

void
gtr_actions_set_core (TrCore * core)
{
    myCore = core;
}

void
gtr_actions_init (GtkUIManager * ui_manager, gpointer callback_user_data)
{
    int              i, n;
    int              active;
    const char *     match;
    const int        n_entries = G_N_ELEMENTS (entries);
    GtkActionGroup * action_group;

    myUIManager = ui_manager;

    register_my_icons ();

    action_group = myGroup = gtk_action_group_new ("Actions");
    gtk_action_group_set_translation_domain (action_group, NULL);

    match = gtr_pref_string_get (TR_KEY_sort_mode);
    for (i = 0, n = G_N_ELEMENTS (sort_radio_entries), active = -1; active == -1 && i < n; ++i)
        if (!g_strcmp0 (sort_radio_entries[i].name, match))
            active = i;

    gtk_action_group_add_radio_actions (action_group,
                                        sort_radio_entries,
                                        G_N_ELEMENTS (sort_radio_entries),
                                        active,
                                        G_CALLBACK (sort_changed_cb),
                                        NULL);

    gtk_action_group_add_toggle_actions (action_group,
                                         show_toggle_entries,
                                         G_N_ELEMENTS (show_toggle_entries),
                                         callback_user_data);

    for (i = 0, n = G_N_ELEMENTS (pref_toggle_entries); i < n; ++i)
        pref_toggle_entries[i].is_active =
            gtr_pref_flag_get (tr_quark_new (pref_toggle_entries[i].name, -1));

    gtk_action_group_add_toggle_actions (action_group,
                                         pref_toggle_entries,
                                         G_N_ELEMENTS (pref_toggle_entries),
                                         callback_user_data);

    gtk_action_group_add_actions (action_group,
                                  entries, n_entries,
                                  callback_user_data);

    gtk_ui_manager_insert_action_group (ui_manager, action_group, 0);
    g_object_unref (G_OBJECT (action_group));
}

/****
*****
****/

static GHashTable * key_to_action = NULL;

static void
ensure_action_map_loaded (GtkUIManager * uim)
{
    GList * l;

    if (key_to_action != NULL)
        return;

    key_to_action =
        g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);

    for (l = gtk_ui_manager_get_action_groups (uim); l != NULL;
         l = l->next)
    {
        GtkActionGroup * action_group = GTK_ACTION_GROUP (l->data);
        GList *          ait, *actions = gtk_action_group_list_actions (
            action_group);
        for (ait = actions; ait != NULL; ait = ait->next)
        {
            GtkAction *  action = GTK_ACTION (ait->data);
            const char * name = gtk_action_get_name (action);
            g_hash_table_insert (key_to_action, g_strdup (name), action);
        }
        g_list_free (actions);
    }
}

static GtkAction*
get_action (const char* name)
{
    ensure_action_map_loaded (myUIManager);
    return (GtkAction*) g_hash_table_lookup (key_to_action, name);
}

void
gtr_action_activate (const char * name)
{
    GtkAction * action = get_action (name);

    g_assert (action != NULL);
    gtk_action_activate (action);
}

void
gtr_action_set_sensitive (const char * name, gboolean b)
{
    GtkAction * action = get_action (name);

    g_assert (action != NULL);
    g_object_set (action, "sensitive", b, NULL);
}

void
gtr_action_set_important (const char * name, gboolean b)
{
    GtkAction * action = get_action (name);

    g_assert (action != NULL);
    g_object_set (action, "is-important", b, NULL);
}

void
gtr_action_set_toggled (const char * name, gboolean b)
{
    GtkAction * action = get_action (name);

    gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), b);
}

GtkWidget*
gtr_action_get_widget (const char * path)
{
    return gtk_ui_manager_get_widget (myUIManager, path);
}