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/*
 * Finch - Universal Text Chat Client
 * Copyright (C) Pidgin Developers <devel@pidgin.im>
 *
 * Finch is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * 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 program; if not, see <https://www.gnu.org/licenses/>.
 */

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

#define G_SETTINGS_ENABLE_BACKEND
#include <gio/gsettingsbackend.h>

#include "finchui.h"

#include "finchnotifications.h"
#include "gntaccount.h"
#include "gntblist.h"
#include "gntconn.h"
#include "gntconv.h"
#include "gntdebug.h"
#include "gntmedia.h"
#include "gntnotify.h"
#include "gntplugin.h"
#include "gntprefs.h"
#include "gntprefs.h"
#include "gntrequest.h"
#include "gntroomlist.h"
#include "gntstatus.h"
#include "gntxfer.h"

struct _FinchUi {
	PurpleUi parent;
};

G_DEFINE_TYPE(FinchUi, finch_ui, PURPLE_TYPE_UI)

/******************************************************************************
 * Helpers
 *****************************************************************************/
static gboolean
finch_history_init(GError **error) {
	PurpleHistoryManager *manager = NULL;
	PurpleHistoryAdapter *adapter = NULL;
	gchar *filename = NULL;
	const gchar *id = NULL;

	manager = purple_history_manager_get_default();

	/* Attempt to create the config directory. */
	g_mkdir_with_parents(purple_config_dir(), 0700);

	filename = g_build_filename(purple_config_dir(), "history.db", NULL);
	adapter = purple_sqlite_history_adapter_new(filename);
	g_free(filename);

	id = purple_history_adapter_get_id(adapter);
	if(!purple_history_manager_register(manager, adapter, error)) {
		g_clear_object(&adapter);

		return FALSE;
	}

	/* The manager adds a ref to the adapter on registration, so we can remove
	 * our reference.
	 */
	g_clear_object(&adapter);

	return purple_history_manager_set_active(manager, id, error);
}

/******************************************************************************
 * PurpleUi Implementation
 *****************************************************************************/
static void
finch_ui_prefs_init(G_GNUC_UNUSED PurpleUi *ui) {
	finch_prefs_init();
}

static gboolean
finch_ui_start(G_GNUC_UNUSED PurpleUi *ui, GError **error) {
	finch_debug_init();

#ifdef STANDALONE
#ifdef _WIN32 /* TODO: don't change it when using FHS under win32 */
	gnt_set_config_dir(purple_config_dir());
#endif /* _WIN32 */

	gnt_init();
#endif /* STANDALONE */

	if(!finch_history_init(error)) {
		const char *error_message = "unknown";

		if(error != NULL && *error != NULL) {
			error_message = (*error)->message;
		}

		g_critical("failed to initialize the history api: %s", error_message);

		return FALSE;
	}

	purple_prefs_add_none("/purple/gnt");

	/* Accounts */
	finch_accounts_init();

	/* Connections */
	finch_connections_init();
	purple_connections_set_ui_ops(finch_connections_get_ui_ops());

	/* Initialize the buddy list */
	finch_blist_init();
	purple_blist_set_ui(FINCH_TYPE_BUDDY_LIST);

	/* Now the conversations */
	finch_conversation_init();
	purple_conversations_set_ui_ops(finch_conv_get_ui_ops());

	/* Notify */
	finch_notify_init();
	purple_notify_set_ui_ops(finch_notify_get_ui_ops());

	/* Request */
	finch_request_init();
	purple_request_set_ui_ops(finch_request_get_ui_ops());

	/* File transfer */
	finch_xfers_init();
	purple_xfers_set_ui_ops(finch_xfers_get_ui_ops());

	/* Roomlist */
	finch_roomlist_init();
	purple_roomlist_set_ui_ops(finch_roomlist_get_ui_ops());

	/* Media */
	finch_media_manager_init();

	gnt_register_action(_("Accounts"), finch_accounts_show_all);
	gnt_register_action(_("Buddy List"), finch_blist_show);
	gnt_register_action(_("Notifications"), finch_notifications_window_show);
	gnt_register_action(_("Debug Window"), finch_debug_window_show);
	gnt_register_action(_("File Transfers"), finch_xfer_dialog_show);
	gnt_register_action(_("Plugins"), finch_plugins_show_all);
	gnt_register_action(_("Room List"), finch_roomlist_show_all);
	gnt_register_action(_("Preferences"), finch_prefs_show_all);
	gnt_register_action(_("Statuses"), finch_savedstatus_show_all);

	return TRUE;

#ifdef STANDALONE
}

static void
finch_ui_stop(G_GNUC_UNUSED PurpleUi *ui) {
	finch_accounts_uninit();

	purple_connections_set_ui_ops(NULL);
	finch_connections_uninit();

	purple_blist_set_ui(G_TYPE_INVALID);
	finch_blist_uninit();

	purple_conversations_set_ui_ops(NULL);
	finch_conversation_uninit();

	purple_notify_set_ui_ops(NULL);
	finch_notify_uninit();

	purple_request_set_ui_ops(NULL);
	finch_request_uninit();

	finch_xfers_uninit();
	purple_xfers_set_ui_ops(NULL);

	finch_roomlist_uninit();
	purple_roomlist_set_ui_ops(NULL);

	finch_media_manager_uninit();

	gnt_quit();

	finch_debug_uninit();

#ifdef _WIN32
	gnt_set_config_dir(NULL);
#endif /* _WIN32 */
#endif /* STANDALONE */
}

static gpointer
finch_ui_get_settings_backend(G_GNUC_UNUSED PurpleUi *ui) {
	GSettingsBackend *backend = NULL;
	char *config = NULL;

	config = g_build_filename(purple_config_dir(), "finch3.ini", NULL);
	backend = g_keyfile_settings_backend_new(config, "/", NULL);

	g_free(config);

	return backend;
}

/******************************************************************************
 * GObject Implementation
 *****************************************************************************/
static void
finch_ui_init(G_GNUC_UNUSED FinchUi *ui) {
}

static void
finch_ui_class_init(FinchUiClass *klass) {
	PurpleUiClass *ui_class = PURPLE_UI_CLASS(klass);

	ui_class->prefs_init = finch_ui_prefs_init;
	ui_class->start = finch_ui_start;
	ui_class->stop = finch_ui_stop;
	ui_class->get_settings_backend = finch_ui_get_settings_backend;
}

/******************************************************************************
 * Public API
 *****************************************************************************/
PurpleUi *
finch_ui_new(void) {
	return g_object_new(
		FINCH_TYPE_UI,
		"id", "finch3",
		"name", _("Finch"),
		"version", VERSION,
		"website", "https://pidgin.im",
		"support-website", "https://pidgin.im/contact/",
		"client-type", "console",
		NULL);
}