//////////////////////////////////////////////////////////////////////////////////////
//    akashi - a server for Attorney Online 2                                       //
//    Copyright (C) 2020  scatterflower                                             //
//                                                                                  //
//    This program is free software: you can redistribute it and/or modify          //
//    it under the terms of the GNU Affero General Public License as                //
//    published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.                           //
//                                                                                  //
//    You should have received a copy of the GNU Affero General Public License      //
//    along with this program.  If not, see <https://www.gnu.org/licenses/>.        //
//////////////////////////////////////////////////////////////////////////////////////
#include "include/aoclient.h"

// Be sure to register the command in the header before adding it here!

void AOClient::cmdDefault(int argc, QStringList argv)
{
    sendServerMessage("Invalid command.");
    return;
}

void AOClient::cmdLogin(int argc, QStringList argv)
{
    QSettings config("config/config.ini", QSettings::IniFormat);
    config.beginGroup("Options");
    QString modpass = config.value("modpass", "default").toString();
    QString auth_type = config.value("auth", "simple").toString();

    if (authenticated) {
        sendServerMessage("You are already logged in!");
        return;
    }

    if (auth_type == "simple") {
        if (modpass == "") {
            sendServerMessage("No modpass is set! Please set a modpass before authenticating.");
        }
        else if(argv[0] == modpass) {
            sendPacket("AUTH", {"1"}); // Client: "You were granted the Disable Modcalls button."
            sendServerMessage("Logged in as a moderator."); // pre-2.9.1 clients are hardcoded to display the mod UI when this string is sent in OOC
            authenticated = true;
        } 
        else {
            sendPacket("AUTH", {"0"}); // Client: "Login unsuccessful."
            sendServerMessage("Incorrect password.");
        }
        server->areas.value(current_area)->logger->logLogin(this, authenticated, "moderator");
    }
    else {
        if (argc < 2) {
            sendServerMessage("You must specify a username and a password");
            return;
        }
        QString username = argv[0];
        QString password = argv[1];
        if (server->db_manager->authenticate(username, password)) {
            moderator_name = username;
            authenticated = true;
            sendPacket("AUTH", {"1"}); // Client: "You were granted the Disable Modcalls button."
            if (version.release <= 2 && version.major <= 9 && version.minor <= 0)
                sendServerMessage("Logged in as a moderator."); // pre-2.9.1 clients are hardcoded to display the mod UI when this string is sent in OOC
            sendServerMessage("Welcome, " + username);
        }
        else {
            sendPacket("AUTH", {"0"}); // Client: "Login unsuccessful."
            sendServerMessage("Incorrect password.");
        }
        server->areas.value(current_area)->logger->logLogin(this, authenticated, username);
    }
}

void AOClient::cmdGetAreas(int argc, QStringList argv)
{
    QStringList entries;
    entries.append("== Area List ==");
    for (int i = 0; i < server->area_names.length(); i++) {
        QStringList cur_area_lines = buildAreaList(i);
        entries.append(cur_area_lines);
    }
    sendServerMessage(entries.join("\n"));
}

void AOClient::cmdGetArea(int argc, QStringList argv)
{
    QStringList entries = buildAreaList(current_area);
    sendServerMessage(entries.join("\n"));
}

void AOClient::cmdBan(int argc, QStringList argv)
{
    QString args_str = argv[1];
    if (argc > 2) {
        for (int i = 2; i < argc; i++)
            args_str += " " + argv[i];
    }

    DBManager::BanInfo ban;

    QRegularExpression quoteMatcher("['\"](.+?)[\"']");
    QRegularExpressionMatchIterator matches = quoteMatcher.globalMatch(args_str);
    QList<QString> unquoted_args;
    while (matches.hasNext()) {
        QRegularExpressionMatch match = matches.next();
        unquoted_args.append(match.captured(1));
    }

    QString duration = "perma";

    if (unquoted_args.length() < 1) {
        sendServerMessage("Invalid syntax. Usage:\n/ban <ipid> \"<reason>\" \"<duration>\"");
        return;
    }

    ban.reason = unquoted_args.at(0);
    if (unquoted_args.length() > 1)
        duration = unquoted_args.at(1);

    long long duration_seconds = 0;
    if (duration == "perma")
        duration_seconds = -2;
    else
        duration_seconds = parseTime(duration);

    if (duration_seconds == -1) {
        sendServerMessage("Invalid time format. Format example: 1h30m");
        return;
    }

    ban.duration = duration_seconds;

    ban.ipid = argv[0];
    ban.time = QDateTime::currentDateTime().toSecsSinceEpoch();
    bool ban_logged = false;
    int kick_counter = 0;

    if (argc > 2) {
        for (int i = 2; i < argv.length(); i++) {
            ban.reason += " " + argv[i];
        }
    }

    for (AOClient* client : server->getClientsByIpid(ban.ipid)) {
        if (!ban_logged) {
            ban.ip = client->remote_ip;
            ban.hdid = client->hwid;
            server->db_manager->addBan(ban);
            sendServerMessage("Banned user with ipid " + ban.ipid + " for reason: " + ban.reason);
            ban_logged = true;
        }
        client->sendPacket("KB", {ban.reason + "\nID: " + QString::number(server->db_manager->getBanID(ban.ip)) + "\nUntil: " + QDateTime::fromSecsSinceEpoch(ban.time).addSecs(ban.duration).toString("dd.MM.yyyy, hh:mm")});
        client->socket->close();
        kick_counter++;
    }

    if (kick_counter > 1)
        sendServerMessage("Kicked " + QString::number(kick_counter) + " clients with matching ipids.");
    if (!ban_logged)
        sendServerMessage("User with ipid not found!");
}

void AOClient::cmdKick(int argc, QStringList argv)
{
    QString target_ipid = argv[0];
    QString reason = argv[1];
    int kick_counter = 0;

    if (argc > 2) {
        for (int i = 2; i < argv.length(); i++) {
            reason += " " + argv[i];
        }
    }

    for (AOClient* client : server->getClientsByIpid(target_ipid)) {
        client->sendPacket("KK", {reason});
        client->socket->close();
        kick_counter++;
    }

    if (kick_counter > 0)
        sendServerMessage("Kicked " + QString::number(kick_counter) + " client(s) with ipid " + target_ipid + " for reason: " + reason);
    else
        sendServerMessage("User with ipid not found!");
}

void AOClient::cmdChangeAuth(int argc, QStringList argv)
{
    QSettings settings("config/config.ini", QSettings::IniFormat);
    settings.beginGroup("Options");
    QString auth_type = settings.value("auth", "simple").toString();

    if (auth_type == "simple") {
        change_auth_started = true;
        sendServerMessage("WARNING!\nThis command will change how logging in as a moderator works.\nOnly proceed if you know what you are doing\nUse the command /rootpass to set the password for your root account.");
    }
}

void AOClient::cmdSetRootPass(int argc, QStringList argv)
{
    if (!change_auth_started)
        return;

    sendServerMessage("Changing auth type and setting root password.\nLogin again with /login root [password]");
    authenticated = false;
    QSettings settings("config/config.ini", QSettings::IniFormat);
    settings.beginGroup("Options");
    settings.setValue("auth", "advanced");

#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
    qsrand(QDateTime::currentMSecsSinceEpoch());
    quint32 upper_salt = qrand();
    quint32 lower_salt = qrand();
    quint64 salt_number = (upper_salt << 32) | lower_salt;
#else
    quint64 salt_number = QRandomGenerator::system()->generate64();
#endif
    QString salt = QStringLiteral("%1").arg(salt_number, 16, 16, QLatin1Char('0'));

    server->db_manager->createUser("root", salt, argv[0], ACLFlags.value("SUPER"));
}

void AOClient::cmdSetBackground(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    if (authenticated || !area->bg_locked) {
        if (server->backgrounds.contains(argv[0])) {
            area->background = argv[0];
            server->broadcast(AOPacket("BN", {argv[0]}), current_area);
            sendServerMessageArea(current_char + " changed the background to " + argv[0]);
        }
        else {
            sendServerMessage("Invalid background name.");
        }
    }
    else {
        sendServerMessage("This area's background is locked.");
    }
}

void AOClient::cmdBgLock(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    area->bg_locked = true;
    server->broadcast(AOPacket("CT", {"Server", current_char + " locked the background.", "1"}), current_area);
}

void AOClient::cmdBgUnlock(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    area->bg_locked = false;
    server->broadcast(AOPacket("CT", {"Server", current_char + " unlocked the background.", "1"}), current_area);
}

void AOClient::cmdAddUser(int argc, QStringList argv)
{
#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
    qsrand(QDateTime::currentMSecsSinceEpoch());
    quint32 upper_salt = qrand();
    quint32 lower_salt = qrand();
    quint64 salt_number = (upper_salt << 32) | lower_salt;
#else
    quint64 salt_number = QRandomGenerator::system()->generate64();
#endif
    QString salt = QStringLiteral("%1").arg(salt_number, 16, 16, QLatin1Char('0'));

    if (server->db_manager->createUser(argv[0], salt, argv[1], ACLFlags.value("NONE")))
        sendServerMessage("Created user " + argv[0] + ".\nUse /addperm to modify their permissions.");
    else
        sendServerMessage("Unable to create user " + argv[0] + ".\nDoes a user with that name already exist?");
}

void AOClient::cmdRemoveUser(int argc, QStringList argv)
{
    if (server->db_manager->deleteUser(argv[0]))
        sendServerMessage("Successfully removed user " + argv[0] + ".");
    else
        sendServerMessage("Unable to remove user " + argv[0] + ".\nDoes it exist?");
}

void AOClient::cmdListPerms(int argc, QStringList argv)
{
    unsigned long long user_acl = server->db_manager->getACL(moderator_name);
    QStringList message;
    if (argc == 0) {
        // Just print out all permissions available to the user.
        message.append("You have been given the following permissions:");
        for (QString perm : ACLFlags.keys()) {
            if (perm == "NONE"); // don't need to list this one
            else if (perm == "SUPER") {
                if (user_acl == ACLFlags.value("SUPER")) // This has to be checked separately, because SUPER & anything will always be truthy
                    message.append("SUPER (Be careful! This grants the user all permissions.)");
            }
            else if ((ACLFlags.value(perm) & user_acl) == 0); // user doesn't have this permission, don't print it
            else
                message.append(perm);
        }
    }
    else {
        if ((user_acl & ACLFlags.value("MODIFY_USERS")) == 0) {
            sendServerMessage("You do not have permission to view other users' permissions.");
            return;
        }

        message.append("User " + argv[0] + " has the following permissions:");
        unsigned long long acl = server->db_manager->getACL(argv[0]);
        if (acl == 0) {
            sendServerMessage("This user either doesn't exist, or has no permissions set.");
            return;
        }

        for (QString perm : ACLFlags.keys()) {
            if ((ACLFlags.value(perm) & acl) != 0 && perm != "SUPER") {
                message.append(perm);
            }
        }
    }
    sendServerMessage(message.join("\n"));
}

void AOClient::cmdAddPerms(int argc, QStringList argv)
{
    unsigned long long user_acl = server->db_manager->getACL(moderator_name);
    argv[1] = argv[1].toUpper();

    if (!ACLFlags.keys().contains(argv[1])) {
        sendServerMessage("That permission doesn't exist!");
        return;
    }

    if (argv[1] == "SUPER") {
        if (user_acl != ACLFlags.value("SUPER")) {
            // This has to be checked separately, because SUPER & anything will always be truthy
            sendServerMessage("You aren't allowed to add that permission!");
            return;
        }
    }
    if (argv[1] == "NONE") {
        sendServerMessage("Added no permissions!");
        return;
    }

    unsigned long long newperm = ACLFlags.value(argv[1]);
    if ((newperm & user_acl) != 0) {
        if (server->db_manager->updateACL(argv[0], newperm, true))
            sendServerMessage("Successfully added permission " + argv[1] + " to user " + argv[0]);
        else
            sendServerMessage(argv[0] + " wasn't found!");
        return;
    }

    sendServerMessage("You aren't allowed to add that permission!");
}

void AOClient::cmdRemovePerms(int argc, QStringList argv)
{
    unsigned long long user_acl = server->db_manager->getACL(moderator_name);
    argv[1] = argv[1].toUpper();

    if (!ACLFlags.keys().contains(argv[1])) {
        sendServerMessage("That permission doesn't exist!");
        return;
    }

    if (argv[0] == "root") {
        sendServerMessage("You cannot change the permissions of the root account!");
        return;
    }

    if (argv[1] == "SUPER") {
        if (user_acl != ACLFlags.value("SUPER")) {
            // This has to be checked separately, because SUPER & anything will always be truthy
            sendServerMessage("You aren't allowed to remove that permission!");
            return;
        }
    }
    if (argv[1] == "NONE") {
        sendServerMessage("Removed no permissions!");
        return;
    }

    unsigned long long newperm = ACLFlags.value(argv[1]);
    if ((newperm & user_acl) != 0) {
        if (server->db_manager->updateACL(argv[0], newperm, false))
            sendServerMessage("Successfully removed permission " + argv[1] + " from user " + argv[0]);
        else
            sendServerMessage(argv[0] + " wasn't found!");
        return;
    }

    sendServerMessage("You aren't allowed to remove that permission!");
}

void AOClient::cmdListUsers(int argc, QStringList argv)
{
    QStringList users = server->db_manager->getUsers();
    sendServerMessage("All users:\n" + users.join("\n"));
}

void AOClient::cmdLogout(int argc, QStringList argv)
{
    if (!authenticated) {
        sendServerMessage("You are not logged in!");
        return;
    }
    authenticated = false;
    moderator_name = "";
    sendPacket("AUTH", {"-1"}); // Client: "You were logged out."
}

void AOClient::cmdPos(int argc, QStringList argv)
{
    changePosition(argv[0]);
    updateEvidenceList(server->areas[current_area]);
}

void AOClient::cmdForcePos(int argc, QStringList argv) 
{
    bool ok;
    QList<AOClient*> targets;
    AreaData* area = server->areas[current_area];
    int target_id = argv[1].toInt(&ok);
    int forced_clients = 0;
    if (!ok && argv[1] != "*") {
        sendServerMessage("That does not look like a valid ID.");
        return;
    }
    else if (ok) {
        AOClient* target_client = server->getClientByID(target_id);
        if (target_client != nullptr)
            targets.append(target_client);
        else {
            sendServerMessage("Target ID not found!");
            return;
        }
    }
        
    else if (argv[1] == "*") { // force all clients in the area
        for (AOClient* client : server->clients) {
            if (client->current_area == current_area)
                targets.append(client);
        }
    }
    for (AOClient* target : targets) {
        target->sendServerMessage("Position forcibly changed by CM.");
        target->changePosition(argv[0]);
        forced_clients++;
    }
    sendServerMessage("Forced " + QString::number(forced_clients) + " into pos " + argv[0] + ".");
}

void AOClient::cmdG(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    QString sender_area = server->area_names.value(current_area);
    QString sender_message = argv.join(" ");
    for (AOClient* client : server->clients) {
        if (client->global_enabled)
            client->sendPacket("CT", {"[G][" + sender_area + "]" + sender_name, sender_message});
    }
    return;
}

void AOClient::cmdNeed(int argc, QStringList argv)
{
    QString sender_area = server->area_names.value(current_area);
    QString sender_message = argv.join(" ");
    sendServerBroadcast({"=== Advert ===\n[" + sender_area + "] needs " + sender_message+ "."});
}

void AOClient::cmdFlip(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    QStringList faces = {"heads","tails"};
    QString face = faces[AOClient::genRand(0,1)];
    sendServerMessage(sender_name + " flipped a coin and got " + face + ".");
}

void AOClient::cmdRoll(int argc, QStringList argv)
{
    diceThrower(argc, argv, RollType::ROLL);
}

void AOClient::cmdRollP(int argc, QStringList argv)
{
    diceThrower(argc, argv, RollType::ROLLP);
}

void AOClient::cmdDoc(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    AreaData* area = server->areas[current_area];
    if (argc == 0) {
        sendServerMessage("Document: " + area->document);
    }
    else {
        area->document = argv.join(" ");
        sendServerMessageArea(sender_name + " changed the document.");
    }
}

void AOClient::cmdClearDoc(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    AreaData* area = server->areas[current_area];
    area->document = "No document.";
    sendServerMessageArea(sender_name + " cleared the document.");
}

void AOClient::cmdCM(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    AreaData* area = server->areas[current_area];
    if (area->is_protected) {
        sendServerMessage("This area is protected, you may not become CM.");
        return;
    }
    else if (area->owners.isEmpty()) { // no one owns this area, and it's not protected
        area->owners.append(id);
        area->invited.append(id);
        sendServerMessageArea(sender_name + " is now CM in this area.");
        arup(ARUPType::CM, true);
    }
    else if (!area->owners.contains(id)) { // there is already a CM, and it isn't us
        sendServerMessage("You cannot become a CM in this area.");
    }
    else if (argc == 1) { // we are CM, and we want to make ID argv[0] also CM
        bool ok;
        AOClient* owner_candidate = server->getClientByID(argv[0].toInt(&ok));
        if (!ok) {
            sendServerMessage("That doesn't look like a valid ID.");
            return;
        }
        if (owner_candidate == nullptr) {
            sendServerMessage("Unable to find client with ID " + argv[0] + ".");
            return;
        }
        area->owners.append(owner_candidate->id);
        sendServerMessageArea(owner_candidate->ooc_name + " is now CM in this area.");
        arup(ARUPType::CM, true);
    }
    else {
        sendServerMessage("You are already a CM in this area.");
    }
}

void AOClient::cmdUnCM(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    int removed = area->owners.removeAll(id);
    area->invited.removeAll(id);
    sendServerMessage("You are no longer CM in this area.");
    arup(ARUPType::CM, true);
    if (area->owners.isEmpty()) {
        area->invited.clear();
        if (area->locked != AreaData::FREE) {
            area->locked = AreaData::FREE;
            arup(ARUPType::LOCKED, true);
        }
    }
}

void AOClient::cmdInvite(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    bool ok;
    int invited_id = argv[0].toInt(&ok);
    if (!ok) {
        sendServerMessage("That does not look like a valid ID.");
        return;
    }
    else if (server->getClientByID(invited_id) == nullptr) {
        sendServerMessage("No client with that ID found.");
        return;
    }
    else if (area->invited.contains(invited_id)) {
        sendServerMessage("That ID is already on the invite list.");
        return;
    }
    area->invited.append(invited_id);
    sendServerMessage("You invited ID " + argv[0]);
}

void AOClient::cmdUnInvite(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    bool ok;
    int uninvited_id = argv[0].toInt(&ok);
    if (!ok) {
        sendServerMessage("That does not look like a valid ID.");
        return;
    }
    else if (server->getClientByID(uninvited_id) == nullptr) {
        sendServerMessage("No client with that ID found.");
        return;
    }
    else if (area->owners.contains(uninvited_id)) {
        sendServerMessage("You cannot uninvite a CM!");
        return;
    }
    else if (!area->invited.contains(uninvited_id)) {
        sendServerMessage("That ID is not on the invite list.");
        return;
    }
    area->invited.removeAll(uninvited_id);
    sendServerMessage("You uninvited ID " + argv[0]);
}

void AOClient::cmdLock(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    if (area->locked == AreaData::LockStatus::LOCKED) {
        sendServerMessage("This area is already locked.");
        return;
    }
    sendServerMessageArea("This area is now locked.");
    area->locked = AreaData::LockStatus::LOCKED;
    for (AOClient* client : server->clients) {
        if (client->current_area == current_area && client->joined) {
            area->invited.append(client->id);
        }
    }
    arup(ARUPType::LOCKED, true);
}

void AOClient::cmdSpectatable(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    if (area->locked == AreaData::LockStatus::SPECTATABLE) {
        sendServerMessage("This area is already in spectate mode.");
        return;
    }
    sendServerMessageArea("This area is now spectatable.");
    area->locked = AreaData::LockStatus::SPECTATABLE;
    for (AOClient* client : server->clients) {
        if (client->current_area == current_area && client->joined) {
            area->invited.append(client->id);
        }
    }
    arup(ARUPType::LOCKED, true);
}

void AOClient::cmdUnLock(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    if (area->locked == AreaData::LockStatus::FREE) {
        sendServerMessage("This area is not locked.");
        return;
    }
    sendServerMessageArea("This area is now unlocked.");
    area->locked = AreaData::LockStatus::FREE;
    arup(ARUPType::LOCKED, true);
}

void AOClient::cmdTimer(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];

    if (argc == 0) {
        QStringList timers;
        timers.append("Currently active timers:");
        QTimer* global_timer = server->timer;
        if (global_timer->isActive()) {
            QTime current_time = QTime(0,0).addMSecs(global_timer->remainingTime());
            timers.append("Global timer is at " + current_time.toString("hh:mm:ss.zzz"));
        }
        for (QTimer* timer : area->timers) {
            timers.append(getAreaTimer(area->index, timer));
        }
        sendServerMessage(timers.join("\n"));
        return;
    }
    bool ok;
    int timer_id = argv[0].toInt(&ok);
    if (!ok || timer_id < 0 || timer_id > 4) {
        sendServerMessage("Invalid timer ID. Timer ID must be a whole number between 0 and 4.");
        return;
    }

    if (argc == 1) {
        if (timer_id == 0) {
            QTimer* global_timer = server->timer;
            if (global_timer->isActive()) {
                QTime current_time = QTime(0, 0, 0, global_timer->remainingTime());
                sendServerMessage("Global timer is at " + current_time.toString("hh:mm:ss.zzz"));
                return;
            }
        }
        else {
            QTimer* timer = area->timers[timer_id - 1];
            sendServerMessage(getAreaTimer(area->index, timer));
            return;
        }
    }

    QTimer* requested_timer;
    if (timer_id == 0) {
        if (!checkAuth(ACLFlags.value("GLOBAL_TIMER"))) {
            sendServerMessage("You are not authorized to alter the global timer.");
            return;
        }
        requested_timer = server->timer;
    }
    else
        requested_timer = area->timers[timer_id - 1];
    QTime requested_time = QTime::fromString(argv[1], "hh:mm:ss");
    if (requested_time.isValid()) {
        requested_timer->setInterval(QTime(0,0).msecsTo(requested_time));
        requested_timer->start();
        sendServerMessage("Set timer " + QString::number(timer_id) + " to " + argv[1] + ".");
        sendPacket("TI", {QString::number(timer_id), "2"}); // Show the timer
        sendPacket("TI", {QString::number(timer_id), "0", QString::number(QTime(0,0).msecsTo(requested_time))});
        return;
    }
    else {
        if (argv[1] == "start") {
            requested_timer->start();
            sendServerMessage("Started timer " + QString::number(timer_id) + ".");
            sendPacket("TI", {QString::number(timer_id), "2"}); // Show the timer
            sendPacket("TI", {QString::number(timer_id), "0", QString::number(QTime(0,0).msecsTo(QTime(0,0).addMSecs(requested_timer->remainingTime())))});
        }
        else if (argv[1] == "pause" || argv[1] == "stop") {
            requested_timer->setInterval(requested_timer->remainingTime());
            requested_timer->stop();
            sendServerMessage("Stopped timer " + QString::number(timer_id) + ".");
            sendPacket("TI", {QString::number(timer_id), "1", QString::number(QTime(0,0).msecsTo(QTime(0,0).addMSecs(requested_timer->interval())))});
        }
        else if (argv[1] == "hide" || argv[1] == "unset") {
            requested_timer->setInterval(0);
            requested_timer->stop();
            sendServerMessage("Hid timer " + QString::number(timer_id) + ".");
            sendPacket("TI", {QString::number(timer_id), "3"}); // Hide the timer
        }
    }
}

void AOClient::cmdEvidenceMod(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    argv[0] = argv[0].toLower();
    if (argv[0] == "cm")
        area->evi_mod = AreaData::EvidenceMod::CM;
    else if (argv[0] == "mod")
        area->evi_mod = AreaData::EvidenceMod::MOD;
    else if (argv[0] == "hiddencm")
        area->evi_mod = AreaData::EvidenceMod::HIDDEN_CM;
    else if (argv[0] == "ffa")
        area->evi_mod = AreaData::EvidenceMod::FFA;
    else {
        sendServerMessage("Invalid evidence mod.");
        return;
    }
    sendServerMessage("Changed evidence mod.");

    // Resend evidence lists to everyone in the area
    sendEvidenceList(area);
}

void AOClient::cmdArea(int argc, QStringList argv)
{
    bool ok;
    int new_area = argv[0].toInt(&ok);
    if (!ok || new_area >= server->areas.size() || new_area < 0) {
        sendServerMessage("That does not look like a valid area ID.");
        return;
    }
    changeArea(new_area);
}

void AOClient::cmdPlay(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    QString song = argv.join(" ");
    area->current_music = song;
    area->music_played_by = showname;
    AOPacket music_change("MC", {song, QString::number(server->getCharID(current_char)), showname, "1", "0"});
    server->broadcast(music_change, current_area);
}

void AOClient::cmdAreaKick(int argc, QStringList argv)
{
    bool ok;
    int idx = argv[0].toInt(&ok);
    if (!ok) {
        sendServerMessage("That does not look like a valid ID.");
        return;
    }
    AOClient* client_to_kick = server->getClientByID(idx);
    if (client_to_kick == nullptr) {
        sendServerMessage("No client with that ID found.");
        return;
    }
    client_to_kick->changeArea(0);
    sendServerMessage("Client " + argv[0] + " kicked back to area 0.");
}

void AOClient::cmdSwitch(int argc, QStringList argv)
{
    int char_id = server->getCharID(argv.join(" "));
    if (char_id == -1) {
        sendServerMessage("That does not look like a valid character.");
        return;
    }
    changeCharacter(char_id);
}

void AOClient::cmdRandomChar(int argc, QStringList argv)
{
    int char_id = genRand(0, server->characters.size() - 1);
    changeCharacter(char_id);
}

void AOClient::cmdToggleGlobal(int argc, QStringList argv)
{
    global_enabled = !global_enabled;
    QString str_en = global_enabled ? "shown" : "hidden";
    sendServerMessage("Global chat set to " + str_en);
}

void AOClient::cmdMods(int argc, QStringList argv)
{
    QStringList entries;
    QSettings config("config/config.ini", QSettings::IniFormat);
    config.beginGroup("Options");
    QString auth_type = config.value("auth", "simple").toString();
    int online_count = 0;
    for (AOClient* client : server->clients) {
        if (client->authenticated) {
            entries << "---";
            if (auth_type != "simple")
                entries << "Moderator: " + client->moderator_name;
            entries << "OOC name: " + client->ooc_name;
            entries << "ID: " + QString::number(client->id);
            entries << "Area: " + QString::number(client->current_area);
            entries << "Character: " + client->current_char;
            online_count++;
        }
    }
    entries << "---";
    entries << "Total online: " << QString::number(online_count);
    sendServerMessage(entries.join("\n"));
}

void AOClient::cmdHelp(int argc, QStringList argv)
{
    QStringList entries;
    entries << "Allowed commands:";
    QMap<QString, CommandInfo>::const_iterator i;
    for (i = commands.constBegin(); i!= commands.constEnd(); ++i) {
        CommandInfo info = i.value();
        if (checkAuth(info.acl_mask)) { // if we are allowed to use this command
            entries << "/" + i.key();
        }
    }
    sendServerMessage(entries.join("\n"));
}

void AOClient::cmdStatus(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    QString arg = argv[0].toLower();
    if (arg == "idle")
        area->status = AreaData::IDLE;
    else if (arg == "rp")
        area->status = AreaData::RP;
    else if (arg == "casing")
        area->status = AreaData::CASING;
    else if (arg == "looking-for-players" || arg == "lfp")
        area->status = AreaData::LOOKING_FOR_PLAYERS;
    else if (arg == "recess")
        area->status = AreaData::RECESS;
    else if (arg == "gaming")
        area->status = AreaData::GAMING;
    else {
        sendServerMessage("That does not look like a valid status. Valid statuses are idle, rp, casing, lfp, recess, gaming");
        return;
    }
    arup(ARUPType::STATUS, true);
}

void AOClient::cmdCurrentMusic(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    if (area->current_music != "" && area->current_music != "~stop.mp3") // dummy track for stopping music
        sendServerMessage("The current song is " + area->current_music + " played by " + area->music_played_by);
    else
        sendServerMessage("There is no music playing.");
}

void AOClient::cmdPM(int arc, QStringList argv)
{
    bool ok;
    int target_id = argv.takeFirst().toInt(&ok); // using takeFirst removes the ID from our list of arguments...
    if (!ok) {
        sendServerMessage("That does not look like a valid ID.");
        return;
    }
    AOClient* target_client = server->getClientByID(target_id);
    if (target_client == nullptr) {
        sendServerMessage("No client with that ID found.");
        return;
    }
    QString message = argv.join(" "); //...which means it will not end up as part of the message
    target_client->sendServerMessage("Message from " + ooc_name + " (" + QString::number(id) + "): " + message);
}

void AOClient::cmdMOTD(int argc, QStringList argv)
{
    if (argc == 0) {
        sendServerMessage("=== MOTD ===\r\n" + server->MOTD + "\r\n=============");
    }
    else if (argc > 0) {
        if (checkAuth(ACLFlags.value("MOTD"))) {
            QString MOTD = argv.join(" ");
            server->MOTD = MOTD;
            sendServerMessage("MOTD has been changed.");
        }
        else {
            sendServerMessage("You do not have permission to change the MOTD");
        }
    }
}

void AOClient::cmdAnnounce(int argc, QStringList argv)
{
    sendServerBroadcast("=== Announcement ===\r\n" + argv.join(" ") + "\r\n=============");
}

void AOClient::cmdM(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    QString sender_message = argv.join(" ");
    for (AOClient* client : server->clients) {
        if (client->checkAuth(ACLFlags.value("MODCHAT")))
            client->sendPacket("CT", {"[M]" + sender_name, sender_message});
    }
    return;
}

void AOClient::cmdGM(int argc, QStringList argv)
{
    QString sender_name = ooc_name;
    QString sender_area = server->area_names.value(current_area);
    QString sender_message = argv.join(" ");
    for (AOClient* client : server->clients) {
        if (client->global_enabled) {
            client->sendPacket("CT", {"[G][" + sender_area + "]" + "["+sender_name+"][M]", sender_message});
        }
    }
}

void AOClient::cmdMute(int argc, QStringList argv)
{
    bool conv_ok = false;
    int uid = argv[0].toInt(&conv_ok);
    if (!conv_ok) {
        sendServerMessage("Invalid user ID.");
        return;
    }

    if (server->getClientByID(uid)->is_muted)
        sendServerMessage("That player is already muted!");
    else
        sendServerMessage("Muted player.");
    server->getClientByID(uid)->is_muted = true;
}

void AOClient::cmdUnmute(int argc, QStringList argv)
{
    bool conv_ok = false;
    int uid = argv[0].toInt(&conv_ok);
    if (!conv_ok) {
        sendServerMessage("Invalid user ID.");
        return;
    }

    if (!server->getClientByID(uid)->is_muted)
        sendServerMessage("That player is already unmuted!");
    else
        sendServerMessage("Unmuted player.");
    server->getClientByID(uid)->is_muted = false;
}

void AOClient::cmdBans(int argc, QStringList argv)
{
    QStringList recent_bans;
    recent_bans << "Last 5 bans:";
    recent_bans << "-----";
    for (DBManager::BanInfo ban : server->db_manager->getRecentBans()) {
        QString banned_until;
        if (ban.duration == -2)
            banned_until = "The heat death of the universe";
        else
            banned_until = QDateTime::fromSecsSinceEpoch(ban.time).addSecs(ban.duration).toString("dd.MM.yyyy, hh:mm");
        recent_bans << "Affected IPID: " + ban.ipid;
        recent_bans << "Affected HDID: " + ban.hdid;
        recent_bans << "Reason for ban: " + ban.reason;
        recent_bans << "Date of ban: " + QDateTime::fromSecsSinceEpoch(ban.time).toString("dd.MM.yyyy, hh:mm");
        recent_bans << "Ban lasts until: " + banned_until;
        recent_bans << "-----";
    }
    sendServerMessage(recent_bans.join("\n"));
}

void AOClient::cmdUnBan(int argc, QStringList argv)
{
    bool ok;
    int target_ban = argv[0].toInt(&ok);
    if (!ok) {
        sendServerMessage("Invalid ban ID.");
        return;
    }
    else if (server->db_manager->invalidateBan(target_ban))
        sendServerMessage("Successfully invalidated ban " + argv[0] + ".");
    else
        sendServerMessage("Couldn't invalidate ban " + argv[0] + ", are you sure it exists?");
}

void AOClient::cmdSubTheme(int argc, QStringList argv)
{
    QString subtheme = argv.join(" ");
    for (AOClient* client : server->clients) {
        if (client->current_area == current_area)
            client->sendPacket("ST", {subtheme, "1"});
    }
    sendServerMessageArea("Subtheme was set to " + subtheme);
}

void AOClient::cmdAbout(int argc, QStringList argv)
{
    sendPacket("CT", {"The akashi dev team", "Thank you for using akashi! Made with love by scatterflower, with help from in1tiate and Salanto. akashi " + QCoreApplication::applicationVersion()});
}

void AOClient::cmdEvidence_Swap(int argc, QStringList argv)
{
    AreaData* area = server->areas[current_area];
    bool ok, ok2; // This is btw a perfectly valid way to declare.
    int ev_id1 = argv[0].toInt(&ok), ev_id2 = argv[1].toInt(&ok2);
    int ev_size = area->evidence.size() -1;

    if ((ok && ok2) && (ev_size > 0)) {
        if ((ev_id1 > 0) && (ev_id2 > 0)) {
            if ((ev_id2 <= ev_size) && (ev_id1 <= ev_size)) {
                AreaData::Evidence EvData = area->evidence[ev_id1];
                area->evidence[ev_id1] = area->evidence[ev_id2];
                area->evidence[ev_id2] = EvData;
                sendEvidenceList(area);
                sendServerMessage("The evidence " + QString::number(ev_id1) + " and " + QString::number(ev_id2) + " has been swapped.");
            }
            else {
                sendServerMessage("Unable to swap evidence. No reference to evidence ID found.");
            }
        }
        else {
            sendServerMessage("Invalid evidence ID.");
        }
    }
    else {
        sendServerMessage("Invalid evidence ID.");
    }
}

QStringList AOClient::buildAreaList(int area_idx)
{
    QStringList entries;
    QString area_name = server->area_names[area_idx];
    AreaData* area = server->areas[area_idx];
    entries.append("=== " + area_name + " ===");
    switch (area->locked) {
        case AreaData::LockStatus::LOCKED:
            entries.append("[LOCKED]");
            break;
        case AreaData::LockStatus::SPECTATABLE:
            entries.append("[SPECTATABLE]");
            break;
        case AreaData::LockStatus::FREE:
        default:
            break;
    }
    entries.append("[" + QString::number(area->player_count) + " users][" + QVariant::fromValue(area->status).toString().replace("_", "-") + "]");
    for (AOClient* client : server->clients) {
        if (client->current_area == area_idx && client->joined) {
            QString char_entry = "[" + QString::number(client->id) + "] " + client->current_char;
            if (client->current_char == "")
                char_entry += "Spectator";
            if (area->owners.contains(client->id))
                char_entry.insert(0, "[CM] ");
            if (authenticated)
                char_entry += " (" + client->getIpid() + "): " + client->ooc_name;
            entries.append(char_entry);
        }
    }
    return entries;
}

int AOClient::genRand(int min, int max)
{
#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
    qsrand(QDateTime::currentMSecsSinceEpoch());
    quint32 random_number = (qrand() % (max - min + 1)) + min;
    return random_number;

#else
    quint32 random_number = QRandomGenerator::system()->bounded(min, max + 1);
    return random_number;
#endif
}

void AOClient::diceThrower(int argc, QStringList argv, RollType type)
{
    QString sender_name = ooc_name;
    int max_value = server->getDiceValue("max_value");
    int max_dice = server->getDiceValue("max_dice");
    int bounded_value;
    int bounded_amount;
    QString dice_results;

    if (argc == 0) {
        dice_results = QString::number(genRand(1, 6)); // Self-explanatory
    }
    else if (argc == 1) {
        bounded_value = qBound(1, argv[0].toInt(), max_value); // faces, max faces
        dice_results = QString::number(genRand(1, bounded_value));
    }
    else if (argc == 2) {
        bounded_value = qBound(1, argv[0].toInt(), max_value); // 1, faces, max faces
        bounded_amount = qBound(1, argv[1].toInt(), max_dice); // 1, amount, max amount

        for (int i = 1; i <= bounded_amount ; i++) // Loop as multiple dices are thrown
        {
            QString dice_result = QString::number(genRand(1, bounded_value));
            if (i == bounded_amount) {
                dice_results = dice_results.append(dice_result);
            }
            else {
                dice_results = dice_results.append(dice_result + ",");
            }
        }
    }
    // Switch to change message behaviour, isEmpty check or the entire server crashes due to an out of range issue in the QStringList
    switch(type)
    {
        case ROLL:
        if (argv.isEmpty()) {
            sendServerMessageArea(sender_name + " rolled " + dice_results + " out of 6");
        }
        else {
            sendServerMessageArea(sender_name + " rolled " + dice_results + " out of " + QString::number(bounded_value));
        }
        break;
        case ROLLP:
        if (argv.isEmpty()) {
            sendServerMessage(sender_name + " rolled " + dice_results + " out of 6");
            sendServerMessageArea((sender_name + " rolled in secret."));
        }
        else {
            sendServerMessageArea(sender_name + " rolled " + dice_results + " out of " + QString::number(bounded_value));
            sendServerMessageArea((sender_name + " rolled in secret."));
        }
        break;
        case ROLLA:
        //Not implemented yet
        default : break;
    }
}

QString AOClient::getAreaTimer(int area_idx, QTimer* timer)
{
    AreaData* area = server->areas[area_idx];
    if (timer->isActive()) {
        QTime current_time = QTime(0,0).addMSecs(timer->remainingTime());
        return "Timer " + QString::number(area->timers.indexOf(timer) + 1) + " is at " + current_time.toString("hh:mm:ss.zzz");
    }
    else {
        return "Timer " + QString::number(area->timers.indexOf(timer) + 1) + " is inactive.";
    }
}

long long AOClient::parseTime(QString input)
{
    QRegularExpression regex("(?:(?:(?<year>.*?)y)*(?:(?<week>.*?)w)*(?:(?<day>.*?)d)*(?:(?<hr>.*?)h)*(?:(?<min>.*?)m)*(?:(?<sec>.*?)s)*)");
    QRegularExpressionMatch match = regex.match(input);
    QString str_year, str_week, str_hour, str_day, str_minute, str_second;
    int year, week, day, hour, minute, second;

    str_year = match.captured("year");
    str_week = match.captured("week");
    str_day = match.captured("day");
    str_hour = match.captured("hr");
    str_minute = match.captured("min");
    str_second = match.captured("sec");

    bool is_well_formed = false;
    QString concat_str(str_year + str_week + str_day + str_hour + str_minute + str_second);
    concat_str.toInt(&is_well_formed);

    if (!is_well_formed) {
        return -1;
    }

    year = str_year.toInt();
    week = str_week.toInt();
    day = str_day.toInt();
    hour = str_hour.toInt();
    minute = str_minute.toInt();
    second = str_second.toInt();

    long long total = 0;
    total += 31622400 * year;
    total += 604800 * week;
    total += 86400 * day;
    total += 3600 * hour;
    total += 60 * minute;
    total += second;

    if (total < 0)
        return -1;

    return total;
}