#include "e.h"
#include "evry_api.h"

typedef struct _Plugin        Plugin;
typedef struct _Settings_Item Settings_Item;

struct _Plugin
{
   Evry_Plugin base;
   Eina_List  *items;
   Eina_List  *categories;
   Eina_Bool   parent;
};

struct _Settings_Item
{
   Evry_Item        base;

   E_Configure_Cat *ecat;
   E_Configure_It  *eci;
};

static const Evry_API *evry = NULL;
static Evry_Module *evry_module = NULL;
static Evry_Plugin *p;
static Evry_Action *act;
static Evry_Type E_SETTINGS;

static void
_finish(Evry_Plugin *plugin)
{
   Settings_Item *it;
   GET_PLUGIN(pl, plugin);

   EVRY_PLUGIN_ITEMS_CLEAR(pl);

   EINA_LIST_FREE (pl->items, it)
     EVRY_ITEM_FREE(it);

   EINA_LIST_FREE (pl->categories, it)
     EVRY_ITEM_FREE(it);

   E_FREE(pl);
}

static Evas_Object *
_icon_get(Evry_Item *item, Evas *e __UNUSED__)
{
   Settings_Item *it = (Settings_Item *)item;

   if (!item->icon)
     {
        if (it->eci && it->eci->icon)
          item->icon = eina_stringshare_add(it->eci->icon);
        else if (it->ecat->icon)
          item->icon = eina_stringshare_add(it->ecat->icon);
     }

   return NULL;
}

static Evry_Plugin *
_browse(Evry_Plugin *plugin, const Evry_Item *item)
{
   Plugin *pl;
   Eina_List *l;
   Settings_Item *it, *it2;

   if (!CHECK_TYPE(item, E_SETTINGS))
     return NULL;

   it = (Settings_Item *)item;

   EVRY_PLUGIN_INSTANCE(pl, plugin);
   pl->parent = EINA_TRUE;

   GET_PLUGIN(parent, item->plugin);

   EINA_LIST_FOREACH (parent->items, l, it2)
     {
        if (it2->ecat == it->ecat)
          {
             EVRY_ITEM_REF(it2);
             pl->items = eina_list_append(pl->items, it2);
          }
     }

   return EVRY_PLUGIN(pl);
}

static Evry_Plugin *
_begin(Evry_Plugin *plugin, const Evry_Item *item __UNUSED__)
{
   Plugin *pl;

   EVRY_PLUGIN_INSTANCE(pl, plugin);

   return EVRY_PLUGIN(pl);
}

static int
_fetch(Evry_Plugin *plugin, const char *input)
{
   int len = input ? strlen(input) : 0;

   GET_PLUGIN(pl, plugin);

   EVRY_PLUGIN_ITEMS_CLEAR(pl);

   if ((!pl->parent) && (len < plugin->config->min_query))
     return 0;

   if (!pl->categories && !pl->items)
     {
        Settings_Item *it;
        Eina_List *l, *ll;
        E_Configure_Cat *ecat;
        E_Configure_It *eci;

        EINA_LIST_FOREACH (e_configure_registry, l, ecat)
          {
             if ((ecat->pri < 0) || (!ecat->items)) continue;
             if (!strcmp(ecat->cat, "system")) continue;

             it = EVRY_ITEM_NEW(Settings_Item, pl, ecat->label, _icon_get, NULL);
             it->ecat = ecat;
             EVRY_ITEM(it)->browseable = EINA_TRUE;
             pl->categories = eina_list_append(pl->categories, it);

             EINA_LIST_FOREACH (ecat->items, ll, eci)
               {
                  if (eci->pri < 0) continue;

                  it = EVRY_ITEM_NEW(Settings_Item, pl, eci->label, _icon_get, NULL);
                  it->eci = eci;
                  it->ecat = ecat;
                  EVRY_ITEM_DETAIL_SET(it, ecat->label);

                  pl->items = eina_list_append(pl->items, it);
               }
          }
     }

   EVRY_PLUGIN_ITEMS_ADD(pl, pl->categories, input, 1, 1);

   if (input || pl->parent)
     EVRY_PLUGIN_ITEMS_ADD(pl, pl->items, input, 1, 1);

   return EVRY_PLUGIN_HAS_ITEMS(pl);
}

static int
_action_check(Evry_Action *action __UNUSED__, const Evry_Item *item)
{
   return !!(((Settings_Item *)item)->eci);
}

static int
_action(Evry_Action *action)
{
   char buf[1024];
   Settings_Item *it;

   it = (Settings_Item *)action->it1.item;

   snprintf(buf, sizeof(buf), "%s/%s", it->ecat->cat, it->eci->item);

   e_configure_registry_call(buf, NULL, NULL);

   return EVRY_ACTION_FINISHED;
}

static int
_plugins_init(const Evry_API *_api)
{
   evry = _api;

   if (!evry->api_version_check(EVRY_API_VERSION))
     return EINA_FALSE;

   E_SETTINGS = evry->type_register("E_SETTINGS");

   p = EVRY_PLUGIN_BASE(N_("Settings"), "configure", E_SETTINGS, _begin, _finish, _fetch);
   p->browse = &_browse;
   evry->plugin_register(p, EVRY_PLUGIN_SUBJECT, 10);

   act = EVRY_ACTION_NEW(N_("Show Dialog"), E_SETTINGS, 0,
                         "preferences-advanced", _action, _action_check);

   evry->action_register(act, 0);

   return EINA_TRUE;
}

static void
_plugins_shutdown(void)
{
   EVRY_PLUGIN_FREE(p);

   EVRY_ACTION_FREE(act);
}

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

Eina_Bool
evry_plug_settings_init(E_Module *m)
{
   EVRY_MODULE_NEW(evry_module, evry, _plugins_init, _plugins_shutdown);

   e_module_delayed_set(m, 1);

   return EINA_TRUE;
}

void
evry_plug_settings_shutdown(void)
{
   EVRY_MODULE_FREE(evry_module);
}

void
evry_plug_settings_save(void){}