/*
 * client_events.c
 * vim: expandtab:ts=4:sts=4:sw=4
 *
 * Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
 * Copyright (C) 2019 - 2023 Michael Vetter <jubalh@iodoru.org>
 *
 * This file is part of Profani-tty.
 *
 * Profani-tty 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.
 *
 * Profani-tty 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 Profani-tty.  If not, see <https://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link the code of portions of this program with the OpenSSL library under
 * certain conditions as described in each individual source file, and
 * distribute linked combinations including the two.
 *
 * You must obey the GNU General Public License in all respects for all of the
 * code used other than OpenSSL. If you modify file(s) with this exception, you
 * may extend this exception to your version of the file(s), but you are not
 * obligated to do so. If you do not wish to do so, delete this exception
 * statement from your version. If you delete this exception statement from all
 * source files in the program, then also delete it here.
 *
 */

#include "config.h"

#include <stdlib.h>
#include <glib.h>

#include "log.h"
#include "chatlog.h"
#include "database.h"
#include "config/preferences.h"
#include "event/common.h"
#include "plugins/plugins.h"
#include "ui/window_list.h"
#include "xmpp/chat_session.h"
#include "xmpp/session.h"
#include "xmpp/xmpp.h"

#ifdef HAVE_LIBOTR
#include "otr/otr.h"
#endif

#ifdef HAVE_LIBGPGME
#include "pgp/gpg.h"
#endif

#ifdef HAVE_OMEMO
#include "omemo/omemo.h"
#endif

jabber_conn_status_t
cl_ev_connect_jid(const char* const jid, const char* const passwd, const char* const altdomain, const int port, const char* const tls_policy, const char* const auth_policy)
{
    cons_show("Connecting as %s", jid);
    return session_connect_with_details(jid, passwd, altdomain, port, tls_policy, auth_policy);
}

jabber_conn_status_t
cl_ev_connect_account(ProfAccount* account)
{
    if (account->resource) {
        cons_show("Connecting with account %s as %s/%s", account->name, account->jid, account->resource);
    } else if (g_strcmp0(account->name, account->jid) == 0) {
        cons_show("Connecting with account %s", account->name);
    } else {
        cons_show("Connecting with account %s as %s", account->name, account->jid);
    }

    return session_connect_with_account(account);
}

void
cl_ev_disconnect(void)
{
    auto_char char* mybarejid = connection_get_barejid();
    cons_show("%s logged out successfully.", mybarejid);

    ui_close_all_wins();
    ev_disconnect_cleanup();
    // on intentional disconnect reset the counter
    ev_reset_connection_counter();
}

void
cl_ev_reconnect(void)
{
    if (connection_get_status() != JABBER_DISCONNECTED) {
        connection_disconnect();
        ev_disconnect_cleanup();
        // on intentional disconnect reset the counter
        ev_reset_connection_counter();
    }
    session_reconnect_now();
}

void
cl_ev_presence_send(const resource_presence_t presence_type, const int idle_secs)
{
    char* signed_status = NULL;

#ifdef HAVE_LIBGPGME
    char* account_name = session_get_account_name();
    ProfAccount* account = accounts_get_account(account_name);
    if (account->pgp_keyid) {
        char* msg = connection_get_presence_msg();
        signed_status = p_gpg_sign(msg, account->pgp_keyid);
    }
    account_free(account);
#endif

    presence_send(presence_type, idle_secs, signed_status);

    free(signed_status);
}

void
cl_ev_send_msg_correct(ProfChatWin* chatwin, const char* const msg, const char* const oob_url, gboolean correct_last_msg)
{
    chat_state_active(chatwin->state);

    gboolean request_receipt = prefs_get_boolean(PREF_RECEIPTS_REQUEST);

    char* plugin_msg = plugins_pre_chat_message_send(chatwin->barejid, msg);
    if (plugin_msg == NULL) {
        return;
    }

    char* replace_id = NULL;
    if (correct_last_msg) {
        replace_id = chatwin->last_msg_id;
    }

    if (chatwin->is_omemo) {
#ifdef HAVE_OMEMO
        char* id = omemo_on_message_send((ProfWin*)chatwin, plugin_msg, request_receipt, FALSE, replace_id);
        if (id != NULL) {
            chat_log_omemo_msg_out(chatwin->barejid, plugin_msg, NULL);
            log_database_add_outgoing_chat(id, chatwin->barejid, plugin_msg, replace_id, PROF_MSG_ENC_OMEMO);
            chatwin_outgoing_msg(chatwin, plugin_msg, id, PROF_MSG_ENC_OMEMO, request_receipt, replace_id);
            free(id);
        }
#endif
    } else if (chatwin->is_ox) {
#ifdef HAVE_LIBGPGME
        // XEP-0373: OpenPGP for XMPP
        char* id = message_send_chat_ox(chatwin->barejid, plugin_msg, request_receipt, replace_id);
        if (id != NULL) {
            chat_log_pgp_msg_out(chatwin->barejid, plugin_msg, NULL);
            log_database_add_outgoing_chat(id, chatwin->barejid, plugin_msg, replace_id, PROF_MSG_ENC_OX);
            chatwin_outgoing_msg(chatwin, plugin_msg, id, PROF_MSG_ENC_OX, request_receipt, replace_id);
            free(id);
        }
#endif
    } else if (chatwin->pgp_send) {
#ifdef HAVE_LIBGPGME
        char* id = message_send_chat_pgp(chatwin->barejid, plugin_msg, request_receipt, replace_id);
        if (id != NULL) {
            chat_log_pgp_msg_out(chatwin->barejid, plugin_msg, NULL);
            log_database_add_outgoing_chat(id, chatwin->barejid, plugin_msg, replace_id, PROF_MSG_ENC_PGP);
            chatwin_outgoing_msg(chatwin, plugin_msg, id, PROF_MSG_ENC_PGP, request_receipt, replace_id);
            free(id);
        }
#endif
    } else {
        gboolean handled = FALSE;
#ifdef HAVE_LIBOTR
        handled = otr_on_message_send(chatwin, plugin_msg, request_receipt, replace_id);
#endif
        if (!handled) {
            char* id = message_send_chat(chatwin->barejid, plugin_msg, oob_url, request_receipt, replace_id);
            chat_log_msg_out(chatwin->barejid, plugin_msg, NULL);
            log_database_add_outgoing_chat(id, chatwin->barejid, plugin_msg, replace_id, PROF_MSG_ENC_NONE);
            chatwin_outgoing_msg(chatwin, plugin_msg, id, PROF_MSG_ENC_NONE, request_receipt, replace_id);
            free(id);
        }
    }

    plugins_post_chat_message_send(chatwin->barejid, plugin_msg);
    free(plugin_msg);
    return;
}

void
cl_ev_send_msg(ProfChatWin* chatwin, const char* const msg, const char* const oob_url)
{
    cl_ev_send_msg_correct(chatwin, msg, oob_url, FALSE);
}

void
cl_ev_send_muc_msg_corrected(ProfMucWin* mucwin, const char* const msg, const char* const oob_url, gboolean correct_last_msg)
{
    char* plugin_msg = plugins_pre_room_message_send(mucwin->roomjid, msg);
    if (plugin_msg == NULL) {
        return;
    }

    char* replace_id = NULL;
    if (correct_last_msg) {
        replace_id = mucwin->last_msg_id;
    }

#ifdef HAVE_OMEMO
    if (mucwin->is_omemo) {
        char* id = omemo_on_message_send((ProfWin*)mucwin, plugin_msg, FALSE, TRUE, replace_id);
        groupchat_log_omemo_msg_out(mucwin->roomjid, plugin_msg);
        log_database_add_outgoing_muc(id, mucwin->roomjid, plugin_msg, replace_id, PROF_MSG_ENC_OMEMO);
        mucwin_outgoing_msg(mucwin, plugin_msg, id, PROF_MSG_ENC_OMEMO, replace_id);
        free(id);
    } else {
        char* id = message_send_groupchat(mucwin->roomjid, plugin_msg, oob_url, replace_id);
        groupchat_log_msg_out(mucwin->roomjid, plugin_msg);
        log_database_add_outgoing_muc(id, mucwin->roomjid, plugin_msg, replace_id, PROF_MSG_ENC_NONE);
        mucwin_outgoing_msg(mucwin, plugin_msg, id, PROF_MSG_ENC_NONE, replace_id);
        free(id);
    }

    plugins_post_room_message_send(mucwin->roomjid, plugin_msg);
    free(plugin_msg);
    return;
#endif

#ifndef HAVE_OMEMO
    char* id = message_send_groupchat(mucwin->roomjid, plugin_msg, oob_url, replace_id);
    groupchat_log_msg_out(mucwin->roomjid, plugin_msg);
    log_database_add_outgoing_muc(id, mucwin->roomjid, plugin_msg, replace_id, PROF_MSG_ENC_NONE);
    mucwin_outgoing_msg(mucwin, plugin_msg, id, PROF_MSG_ENC_NONE, replace_id);
    free(id);

    plugins_post_room_message_send(mucwin->roomjid, plugin_msg);
    free(plugin_msg);
    return;
#endif
}

void
cl_ev_send_muc_msg(ProfMucWin* mucwin, const char* const msg, const char* const oob_url)
{
    cl_ev_send_muc_msg_corrected(mucwin, msg, oob_url, FALSE);
}

void
cl_ev_send_priv_msg(ProfPrivateWin* privwin, const char* const msg, const char* const oob_url)
{
    if (privwin->occupant_offline) {
        privwin_message_occupant_offline(privwin);
    } else if (privwin->room_left) {
        privwin_message_left_room(privwin);
    } else {
        char* plugin_msg = plugins_pre_priv_message_send(privwin->fulljid, msg);
        Jid* jidp = jid_create(privwin->fulljid);

        char* id = message_send_private(privwin->fulljid, plugin_msg, oob_url);
        chat_log_msg_out(jidp->barejid, plugin_msg, jidp->resourcepart);
        log_database_add_outgoing_muc_pm(id, privwin->fulljid, plugin_msg, NULL, PROF_MSG_ENC_NONE);
        privwin_outgoing_msg(privwin, plugin_msg);
        free(id);

        plugins_post_priv_message_send(privwin->fulljid, plugin_msg);

        free(plugin_msg);
        jid_destroy(jidp);
    }
}