/* vim:set et sts=4: */

/*
 * Keyman Input Method for IBUS (The Input Bus)
 *
 * Copyright (C) 2018 SIL International
 *
 * keymanutil is dual licensed under the MIT or GPL licenses as described below.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * MIT license
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * OR
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * This program 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 2 of the License, or (at your option) any later version.
 *
 * This program 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 *
 */

#include <stdlib.h>
#include <dirent.h>
#include <sys/stat.h>
#include <glib.h>
#include <glib/gprintf.h>
#include <string.h>
#include <keyman/keyman_core_api.h>

#include "bcp47util.h"
#include "kmpdetails.h"
#include "keyman-version.h"
#include "keymanutil.h"
#include "keymanutil_internal.h"

#define N_(text) text

GHashTable *custom_keyboards = NULL;

void free_cust_kbd(gpointer data) {
  if (data == NULL)
    return;

  cust_kbd *kbd_data = (cust_kbd *)data;

  g_free(kbd_data->kb_id_with_lang);
  g_free(kbd_data->lang->id);
  g_free(kbd_data->lang->name);
  g_free(kbd_data->lang);
  g_free(kbd_data);
}

// change to keyman_get_kmpdirs_fromdir
// returns list of directories with kmp.json
GList * keyman_get_kmpdirs_fromdir(GList *kmpdir_list, const gchar * path)
{
    DIR *dir = opendir(path);

    if (dir != NULL) {
        struct dirent *file = readdir(dir);
        while (file != NULL) {
            struct stat filestat;
            g_autofree gchar *absfn = g_strdup_printf("%s/%s", path, file->d_name);
            stat(absfn, &filestat);

            if (S_ISDIR(filestat.st_mode))
            {
                if(g_strcmp0(file->d_name, ".") != 0 && g_strcmp0(file->d_name, "..") != 0)
                    kmpdir_list = keyman_get_kmpdirs_fromdir(kmpdir_list, absfn);
            }
            // Looking for kmp.json
            else if (S_ISREG(filestat.st_mode) && g_strcmp0(file->d_name, "kmp.json") == 0)
            {
                g_message("adding kmp path %s", path);
                kmpdir_list=g_list_append(kmpdir_list, g_strdup(path));
            }

            file = readdir(dir);
        }
        closedir(dir);
    }
    return kmpdir_list;
}

gchar * keyman_get_icon_file(const gchar *kmx_file)
{
    // Now there will only be the .png
    // which at some point will get extracted from the .kmx during installation
    gchar *full_path_to_icon_file, *p;
    g_autofree gchar *filename;

    p = rindex(kmx_file, '.');
    filename = g_strndup(kmx_file, p-kmx_file);
    full_path_to_icon_file=g_strdup_printf("%s.bmp.png", filename);

    if (!g_file_test(full_path_to_icon_file, G_FILE_TEST_EXISTS)) {
        g_free(full_path_to_icon_file);
        full_path_to_icon_file=g_strdup("/usr/share/keyman/icons/default.png");
    }
    return full_path_to_icon_file;
}

IBusEngineDesc *
ibus_keyman_engine_desc_new(
    gchar *file_name,
    gchar *name,
    gchar *description,
    gchar *copyright,
    gchar *lang,
    gchar *license,
    gchar *author,
    gchar *icon,
    gchar *layout,
    gchar *version
) {
  IBusEngineDesc *engine_desc;
  g_autofree gchar *desc;

  if (description == NULL) {
    desc = g_strdup_printf("%s", copyright);
  } else {
    desc = g_strdup_printf("%s\n%s", description, copyright);
  }

  engine_desc = ibus_engine_desc_new_varargs(
      "name", file_name, "longname", name, "description", desc, "language", lang ? lang : "other", "license",
      license ? license : "", "author", author ? author : "", "icon", icon, "layout", layout, "version", version ? version : "",
      NULL);
  g_object_ref(engine_desc);
  return engine_desc;
}

IBusEngineDesc *
get_engine_for_language(
    kmp_keyboard *keyboard,
    kmp_info *info,
    keyboard_details *kbd_details,
    gchar *kmp_dir,
    kmp_language *lang) {
  IBusEngineDesc* engine_desc = NULL;
  if (!lang || !lang->id || !strlen(lang->id))
    return engine_desc;

  int capacity          = 255;
  g_autofree gchar *name_with_lang = NULL;
  g_autofree gchar *minimized_tag = g_new0(gchar, capacity);
  int result = bcp47_minimize(lang->id, minimized_tag, capacity);
  if (result < 0) {
    g_strlcpy(minimized_tag, lang->id, capacity);
  }

  g_autofree gchar *lang_code = g_new0(gchar, capacity);
  if (!bcp47_get_language_code(minimized_tag, lang_code, capacity)) {
    g_strlcpy(lang_code, minimized_tag, capacity);
  }

  // If ibus doesn't know about the language then append the
  // language name to the keyboard name
  if (lang->name != NULL) {
    g_autofree gchar *ibus_lang = ibus_get_untranslated_language_name(lang_code);
    g_debug("%s: untranslated ibus language for %s: %s", __FUNCTION__, minimized_tag, ibus_lang);
    if (g_strcmp0(ibus_lang, "Other") == 0) {
      name_with_lang = g_strjoin(" - ", keyboard->name, lang->name, NULL);
    }
  }

  g_autofree gchar *abs_kmx = g_strjoin("/", kmp_dir, keyboard->kmx_file, NULL);
  g_autofree gchar *id_with_lang = g_strjoin(":", minimized_tag, abs_kmx, NULL);

  g_message("adding engine %s", id_with_lang);
  engine_desc = ibus_keyman_engine_desc_new(
    id_with_lang,                                      // lang:kmx full path
    name_with_lang ? name_with_lang : keyboard->name,  // longname
    kbd_details->description,                          // description
    info->copyright,                                   // copyright if available
    lang_code,                      // language, most are ignored by ibus except major languages
    kbd_details->license,           // license
    info->author_desc,              // author name only, not email
    keyman_get_icon_file(abs_kmx),  // icon full path
    "us",                           // layout defaulting to us (en-US)
    keyboard->version);
  return engine_desc;
}

int _get_version(const gchar **pver) {
  g_assert(pver);
  const gchar *ver = *pver;
  int version      = 0;

  while (*ver && *ver != '.') {
    if (*ver >= '0' && *ver <= '9') {
      version = version * 10 + (*ver - '0');
      ver++;
    } else {
      // stop comparison on first non-digit
      while (*ver)
        ver++;
    }
  }
  *pver = ver;
  return version;
}

int
keyman_compare_version(const gchar *ver1, const gchar *ver2) {
  for (; *ver1 || *ver2; ) {
    int version1 = _get_version(&ver1);
    int version2 = _get_version(&ver2);

    if (version1 < version2)
      return -1;
    if (version1 > version2)
      return +1;

    if (*ver1)
      ver1++;
    if (*ver2)
      ver2++;
  }
  return 0;
}

gboolean
keyman_list_contains_keyboard(
  GList *engines_list,
  kmp_keyboard *keyboard
) {
  for (GList *e = engines_list; e != NULL; e = e->next) {
    IBusEngineDesc *engine_desc = (IBusEngineDesc *)e->data;
    const gchar *version        = ibus_engine_desc_get_version(engine_desc);
    const gchar *engine_name    = ibus_engine_desc_get_name(engine_desc);
    g_autofree gchar *kmx_file  = g_path_get_basename(engine_name);
    // If we already have an engine for this keyboard (in a different area), we
    // don't want to add it again since we wouldn't add anything new
    // if it's the same version
    if (g_strcmp0(kmx_file, keyboard->kmx_file) == 0 && keyman_compare_version(version, keyboard->version) >= 0) {
      g_debug("keyboard %s already exists at version %s which is newer or same as %s", kmx_file, version, keyboard->version);
      return TRUE;
    }
  }
  return FALSE;
}

GList *
keyman_add_custom_keyboards(
  kmp_keyboard *keyboard,
  add_keyboard_data *kb_data,
  keyboard_details * kbd_details,
  gchar * kmx_path
) {
  GList * engines_list = kb_data->engines_list;
  GPtrArray *language_keyboards = g_hash_table_lookup(custom_keyboards, kmx_path);
  if (language_keyboards == NULL)
    return engines_list;

  for (int i = 0; i < language_keyboards->len; i++) {
    cust_kbd *data = (cust_kbd *)g_ptr_array_index(language_keyboards, i);
    IBusEngineDesc *engine_desc = get_engine_for_language(keyboard, kb_data->info, kbd_details, kb_data->kmp_dir, data->lang);
    if (engine_desc) {
      engines_list = g_list_append(engines_list, engine_desc);
    }
  }
  return engines_list;
}

GList *
keyman_add_keyboards_for_language_if_given(
  kmp_keyboard *keyboard,
  add_keyboard_data *kb_data,
  keyboard_details * kbd_details,
  gchar * kmx_path
) {
  GList * engines_list = kb_data->engines_list;
  if (keyboard->languages != NULL) {
    for (GList *l = keyboard->languages; l != NULL; l = l->next) {
      kmp_language *language = (kmp_language *)l->data;
      IBusEngineDesc *engine_desc =
          get_engine_for_language(keyboard, kb_data->info, kbd_details, kb_data->kmp_dir, language);
      if (engine_desc) {
        engines_list = g_list_append(engines_list, engine_desc);
      }
    }
  } else {
    g_message("adding engine %s", kmx_path);
    engines_list = g_list_append(
        engines_list,
        ibus_keyman_engine_desc_new(
            kmx_path,                       // kmx full path
            keyboard->name,                 // longname
            kbd_details->description,       // description
            kb_data->info->copyright,       // copyright if available
            NULL,                           // language, most are ignored by ibus except major languages
            kbd_details->license,           // license
            kb_data->info->author_desc,     // author name only, not email
            keyman_get_icon_file(kmx_path), // icon full path
            "us",                           // layout defaulting to us (en-US)
            keyboard->version));
  }
  return engines_list;
}

// Add a keyboard (ibus engine) to the list of engines
void
keyman_add_keyboard(
  gpointer data,
  gpointer user_data
) {
  kmp_keyboard *keyboard = (kmp_keyboard *)data;
  add_keyboard_data *kb_data = (add_keyboard_data *)user_data;

  if (keyman_list_contains_keyboard(kb_data->engines_list, keyboard)) {
    return;
  }

  g_autofree gchar *json_file             = g_strjoin(".", keyboard->id, "json", NULL);
  g_autoptr(keyboard_details) kbd_details = g_new0(keyboard_details, 1);
  get_keyboard_details(kb_data->kmp_dir, json_file, kbd_details);
  g_autofree gchar *abs_kmx = g_strjoin("/", kb_data->kmp_dir, keyboard->kmx_file, NULL);

  kb_data->engines_list = keyman_add_keyboards_for_language_if_given(keyboard, kb_data, kbd_details, abs_kmx);
  kb_data->engines_list = keyman_add_custom_keyboards(keyboard, kb_data, kbd_details, abs_kmx);
}

// Add keyboards found in {kmp_dir}/kmp.json to engines_list
void
keyman_add_keyboards_from_dir(gpointer data, gpointer user_data) {
  gchar * kmp_dir = (gchar *) data;
  GList ** engines_list = (GList **)user_data;

  g_autoptr(kmp_details) details = g_new0(kmp_details, 1);

  if (get_kmp_details(kmp_dir, details) == JSON_OK) {
    add_keyboard_data kb_data;
    kb_data.engines_list = *engines_list;
    kb_data.info         = &details->info;
    kb_data.kmp_dir      = kmp_dir;

    g_list_foreach(details->keyboards, keyman_add_keyboard, &kb_data);
    *engines_list = kb_data.engines_list;
  }
}

GList *
ibus_keyman_list_engines()
{
    GList *engines = NULL;
    GList *kmpdir_list;
    gchar *xdgenv;
    g_autofree gchar *local_keyboard_path;

    custom_keyboards = keyman_get_custom_keyboard_dictionary();

    g_debug("adding from /usr/share/keyman");
    kmpdir_list = keyman_get_kmpdirs_fromdir(NULL, "/usr/share/keyman");
    g_debug("adding from /usr/local/share/keyman");
    kmpdir_list = keyman_get_kmpdirs_fromdir(kmpdir_list, "/usr/local/share/keyman");
    xdgenv = getenv("XDG_DATA_HOME");
    if (xdgenv != NULL){
        local_keyboard_path= g_strdup_printf("%s/keyman", xdgenv);
    }
    else {
        xdgenv = getenv("HOME");
        local_keyboard_path= g_strdup_printf("%s/.local/share/keyman", xdgenv);
    }
    g_debug("adding from %s", local_keyboard_path);
    kmpdir_list = keyman_get_kmpdirs_fromdir(kmpdir_list, local_keyboard_path);
    g_list_foreach(kmpdir_list, keyman_add_keyboards_from_dir, &engines);
    g_list_free_full(kmpdir_list, g_free);

    return engines;
}

void
add_engine(
  gpointer data,
  gpointer user_data
) {
  IBusEngineDesc *desc     = IBUS_ENGINE_DESC(data);
  IBusComponent *component = IBUS_COMPONENT(user_data);
  ibus_component_add_engine(component, g_object_ref(desc));
}

IBusComponent *
ibus_keyman_get_component (void)
{
    IBusComponent *component;

    component = ibus_component_new ("org.freedesktop.IBus.Keyman",
                                    N_("Keyman"),
                                    KEYMAN_VERSION,
                                    "GPL",
                                    "Keyman team <support@keyman.com>",
                                    "https://keyman.com",
                                    "",
                                    "ibus-keyman");

    g_autolist(IBusEngineDesc) engines = ibus_keyman_list_engines();
    g_list_foreach(engines, add_engine, component);

    return component;
}

/**
 * Obtain Keyboard Options list from DConf
 *
 * DConf options are in a list of strings like ['option_key1=value1', 'option_key2=value2']
 *
 * @param   package_id   Package ID
 * @param   keyboard_id  Keyboard ID
 * @return               A newly allocated gchar**; free with g_strfreev()
 */
gchar**
keyman_get_keyboard_options_fromdconf(
  const gchar *package_id,
  const gchar *keyboard_id
) {
    g_message(__FUNCTION__);

    // Obtain keyboard options from DConf
    g_autofree gchar *path = g_strdup_printf("%s%s/%s/", KEYMAN_DCONF_OPTIONS_PATH, package_id, keyboard_id);
    GSettings *child_settings = g_settings_new_with_path(KEYMAN_DCONF_OPTIONS_CHILD_NAME, path);
    gchar **options = NULL;
    if (child_settings != NULL)
    {
        options = g_settings_get_strv(child_settings, KEYMAN_DCONF_OPTIONS_KEY);
    }

    g_object_unref(G_OBJECT(child_settings));

    return options;
}

/**
 * Obtain Keyboard Options from DConf and parse into a GQueue of struct km_core_option_item
 *
 * @param   package_id   Package ID
 * @param   keyboard_id  Keyboard ID
 * @return               A newly allocated GQueue; free with g_queue_free_full()
 */
GQueue*
keyman_get_keyboard_options_queue_fromdconf(
  const gchar *package_id,
  const gchar *keyboard_id
) {
    g_message(__FUNCTION__);
    GQueue *queue_options = g_queue_new();

    // Obtain keyboard options from DConf
    g_auto(GStrv) options = keyman_get_keyboard_options_fromdconf(package_id, keyboard_id);

    // Parse options into queue_options
    if (options != NULL)
    {
        int index = 0;
        while (options[index] != NULL)
        {
            g_auto(GStrv) option_tokens = g_strsplit(options[index], "=", 2);
            if (option_tokens != NULL && option_tokens[0] != NULL && option_tokens[1] != NULL)
            {
                g_message("Keyboard Option [%d], %s=%s", index, option_tokens[0], option_tokens[1]);
                km_core_option_item *opt = g_new0(km_core_option_item, 1);
                opt[0].scope = KM_CORE_OPT_KEYBOARD;
                km_core_cu *ocp = g_utf8_to_utf16(option_tokens[0], -1, NULL, NULL, NULL);
                opt[0].key = ocp;
                ocp = g_utf8_to_utf16 (option_tokens[1], -1, NULL, NULL, NULL);
                opt[0].value = ocp;
                g_queue_push_tail(queue_options, opt);
            }
            index++;
        }
    }

    return queue_options;
}

/**
 * Write new keyboard option to DConf
 *
 * DConf options are in a list of strings like ['option_key1=value1', 'option_key2=value2']
 * If the option key already exists, the value is updated. Otherwise a new string
 * 'option_key=option_value' is appended.
 *
 * @param package_id     Package ID
 * @param keyboard_id    Keyboard ID
 * @param option_key     Key for the new option
 * @param option_value   Value of the new option
 */
void
keyman_put_keyboard_options_todconf(
    const gchar *package_id,
    const gchar *keyboard_id,
    const gchar *option_key,
    const gchar *option_value
) {
  g_message(__FUNCTION__);
  if (package_id == NULL || keyboard_id == NULL || option_key == NULL || option_value == NULL) {
    return;
  }

  // Obtain keyboard options from DConf
  g_auto(GStrv) options    = keyman_get_keyboard_options_fromdconf(package_id, keyboard_id);
  g_autofree gchar *needle = g_strdup_printf("%s=", option_key);
  gchar *kvp               = g_strdup_printf("%s=%s", option_key, option_value);

  g_assert(options != NULL);

  int index               = 0;
  gboolean option_updated = FALSE;
  while (options[index] != NULL) {
    // If option_key already exists, update value with option_value
    if (g_strrstr(options[index], needle) != NULL) {
      g_free(options[index]);
      options[index] = kvp;
      option_updated = TRUE;
      break;
    }
    index++;
  }

  if (!option_updated) {
    // Resize to add new option and null-terminate
    int size           = index + 2;  // old size: index + 1, plus 1 new
    options            = g_renew(gchar *, options, size);
    options[index]     = kvp;
    options[index + 1] = NULL;
  }

  // Write to DConf
  g_autofree gchar *path              = g_strdup_printf("%s%s/%s/", KEYMAN_DCONF_OPTIONS_PATH, package_id, keyboard_id);
  g_autoptr(GSettings) child_settings = g_settings_new_with_path(KEYMAN_DCONF_OPTIONS_CHILD_NAME, path);
  if (child_settings != NULL) {
    g_message("writing keyboard options to DConf");
    g_settings_set_strv(child_settings, KEYMAN_DCONF_OPTIONS_KEY, (const gchar *const *)options);
  }

  // kvp got assigned to options[x] and so gets freed when options are freed
}

/**
 * Obtain (general) option value from DConf
 *
 * @param   option_key   Key of the option
 * @return               The current value of the option
 */
gboolean keyman_get_option_fromdconf(const gchar* option_key) {
  g_autoptr(GSettings) settings = g_settings_new(KEYMAN_DCONF_OPTIONS_NAME);
  return g_settings_get_boolean(settings, option_key);
}

/**
 * Write new (general) option to DConf
 *
 * @param option_key     Key for the new option
 * @param option_value   Value of the new option
 * @return               TRUE if setting the key succeeded, FALSE if the key was not writable
 */
gboolean keyman_put_option_todconf(const gchar* option_key, gboolean option_value) {
  g_autoptr(GSettings) settings = g_settings_new(KEYMAN_DCONF_OPTIONS_NAME);
  return g_settings_set_boolean(settings, option_key, option_value);
}

/**
 * Subscribe to changes in the (general) Keyman options
 *
 * @param callback   Callback method. Note that this should be different methods if
 *                   this method gets called for different keys.
 * @param user_data  Custom data that will passed to callback
 * @return           A transparent settings object
 */
void* keyman_subscribe_option_changes(void* callback, gpointer user_data) {
  GSettings *settings;
  settings = g_settings_new(KEYMAN_DCONF_OPTIONS_NAME);

  g_signal_connect(settings, "changed", G_CALLBACK(callback), user_data);
  return settings;
}

/**
 * Unsubscribe from changes in the (general) option settings
 *
 * @param settings   The settings object
 * @param callback   The callback method used when subscribing
 * @param user_data  Custom data for callback
 * @return           > 0 if successfully unsubscribed, otherwise 0
 */
guint keyman_unsubscribe_option_changes(void* settings, void* callback, gpointer user_data) {
  if (!settings) {
    return 0;
  }

  guint retval = g_signal_handlers_disconnect_by_func(settings, callback, user_data);
  if (retval > 0) {
    g_object_unref(settings);
  }
  return retval;
}

static GPtrArray *
_ptr_array_new_from_array(
    gpointer *data,
    gsize len,
    gboolean null_terminated) {
  GPtrArray *array;

  g_assert(data != NULL || len == 0);
  g_assert(len <= G_MAXUINT);

  array = g_ptr_array_new_full(len, NULL);

  for (gsize i = 0; i < len; i++)
    array->pdata[i] = g_strdup(data[i]);

  if (null_terminated && array->pdata != NULL)
    array->pdata[len++] = NULL;

  array->len = len;

  return array;
}

// `g_ptr_array_new_from_null_terminated_array` is only available in GLib 2.76, but we're still
// stuck to 2.64 (Ubuntu 20.04 Focal) and 2.72 (Ubuntu 22.04 Jammy). Therefore we
// copy the implementation here (slightly simplified). Once we're past 2.76 we can use the GLib method
// directly.
GPtrArray *
_g_ptr_array_new_from_null_terminated_array(
    gpointer *data,
    GCopyFunc copy_func,
    gpointer copy_func_user_data,
    GDestroyNotify element_free_func) {
  gsize len = 0;

  if (data != NULL) {
    for (gsize i = 0; data[i] != NULL; ++i)
      len += 1;
  }

  g_assert(data != NULL || len == 0);
  g_return_val_if_fail(len <= G_MAXUINT, NULL);

  return _ptr_array_new_from_array(data, len, TRUE);
}

GPtrArray *
_keyman_cleanup_custom_keyboards(gchar **keyboards) {
  GPtrArray *ptr_array = _g_ptr_array_new_from_null_terminated_array((gpointer*)keyboards, NULL, NULL, NULL);

  for (int i = 0; i < ptr_array->len; i++) {
    if (ptr_array->pdata[i] == NULL) {
      continue;
    }
    g_auto(GStrv) keyboard_tokens = g_strsplit(ptr_array->pdata[i], ":", 2);
    if (keyboard_tokens == NULL
      || keyboard_tokens[0] == NULL || strlen(keyboard_tokens[0]) == 0
      || keyboard_tokens[1] == NULL || strlen(keyboard_tokens[1]) == 0
    ) {
      g_ptr_array_remove_index(ptr_array, i--);
    }
  }
  return ptr_array;
}

gchar **
keyman_get_custom_keyboards() {
  g_autoptr(GSettings) settings = g_settings_new(KEYMAN_DCONF_ENGINE_NAME);
  g_auto(GStrv) result          = g_settings_get_strv(settings, KEYMAN_DCONF_KEYBOARDS_KEY);
  if (result && result[0] == NULL) {
    return NULL;
  }
  g_autoptr(GPtrArray) cleaned_result = _keyman_cleanup_custom_keyboards(result);
  return (gchar**)g_ptr_array_steal(cleaned_result, NULL);
}

void
keyman_set_custom_keyboards(gchar ** keyboards) {
  g_autoptr(GSettings) settings = g_settings_new(KEYMAN_DCONF_ENGINE_NAME);
  g_autoptr(GPtrArray) cleaned_keyboards = _keyman_cleanup_custom_keyboards(keyboards);
  g_settings_set_strv(settings, KEYMAN_DCONF_KEYBOARDS_KEY, (const gchar *const *)cleaned_keyboards->pdata);
}

GHashTable *
keyman_get_custom_keyboard_dictionary() {
  g_auto(GStrv) custom_keyboards = keyman_get_custom_keyboards();
  if (!custom_keyboards)
    return NULL;

  GHashTable *hash_table = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, (GDestroyNotify)g_ptr_array_unref);

  for (int i = 0; custom_keyboards[i]; i++) {
    g_auto(GStrv) keyboard_tokens = g_strsplit(custom_keyboards[i], ":", 2);

    if (keyboard_tokens != NULL && keyboard_tokens[0] != NULL && keyboard_tokens[1] != NULL) {
      GPtrArray *language_keyboards = g_hash_table_lookup(hash_table, keyboard_tokens[1]);
      if (!language_keyboards) {
        language_keyboards = g_ptr_array_new_full(1, free_cust_kbd);
        g_hash_table_insert(hash_table, g_strdup(keyboard_tokens[1]), language_keyboards);
      }

      cust_kbd *data        = g_new0(cust_kbd, 1);
      data->kb_id_with_lang = g_strdup(custom_keyboards[i]);
      data->lang            = g_new0(kmp_language, 1);
      data->lang->id        = g_strdup(keyboard_tokens[0]);
      g_ptr_array_add(language_keyboards, data);
    } else {
      g_debug("%s: Invalid keyboard: '%s'", __FUNCTION__, custom_keyboards[i]);
    }
  }

  return hash_table;
}

#ifdef DEBUG
#include <locale.h>

int main ()
{
    IBusComponent *component;
    GString *output;

    setlocale (LC_ALL, "");
    ibus_init ();

    component = ibus_keyman_get_component ();

    output = g_string_new ("");

    ibus_component_output (component, output, 1);

    g_debug ("\n%s", output->str);

    g_string_free (output, TRUE);
    g_object_unref (component);

    return 0;
}
#endif