#include "MessageBuilder.hpp"

#include "common/LinkParser.hpp"
#include "singletons/Emotes.hpp"
#include "singletons/Resources.hpp"
#include "singletons/Theme.hpp"
#include "util/FormatTime.hpp"
#include "util/IrcHelpers.hpp"

#include <QDateTime>

namespace chatterino {

MessagePtr makeSystemMessage(const QString &text)
{
    return MessageBuilder(systemMessage, text).release();
}

MessageBuilder::MessageBuilder()
    : message_(std::make_unique<Message>())
{
}

MessageBuilder::MessageBuilder(const QString &text)
    : MessageBuilder()
{
    this->emplace<TimestampElement>();
    this->emplace<TextElement>(text, MessageElementFlag::Text,
                               MessageColor::System);
    this->message().searchText = text;
}

MessageBuilder::MessageBuilder(SystemMessageTag, const QString &text)
    : MessageBuilder()
{
    this->emplace<TimestampElement>();
    this->emplace<TextElement>(text, MessageElementFlag::Text,
                               MessageColor::System);
    this->message().flags.set(MessageFlag::System);
    this->message().flags.set(MessageFlag::DoNotTriggerNotification);
    this->message().searchText = text;
}

MessageBuilder::MessageBuilder(TimeoutMessageTag, const QString &username,
                               const QString &durationInSeconds,
                               const QString &reason, bool multipleTimes)
    : MessageBuilder()
{
    QString text;

    text.append(username);
    if (!durationInSeconds.isEmpty()) {
        text.append(" has been timed out");

        // TODO: Implement who timed the user out

        text.append(" for ");
        bool ok = true;
        int timeoutSeconds = durationInSeconds.toInt(&ok);
        if (ok) {
            text.append(formatTime(timeoutSeconds));
        }
    } else {
        text.append(" has been permanently banned");
    }

    if (reason.length() > 0) {
        text.append(": \"");
        text.append(parseTagString(reason));
        text.append("\"");
    }
    text.append(".");

    if (multipleTimes) {
        text.append(" (multiple times)");
    }

    this->message().flags.set(MessageFlag::System);
    this->message().flags.set(MessageFlag::Timeout);
    this->message().flags.set(MessageFlag::DoNotTriggerNotification);
    this->message().timeoutUser = username;
}

MessageBuilder::MessageBuilder(const BanAction &action, uint32_t count)
{
    this->emplace<TimestampElement>();
    this->message().flags.set(MessageFlag::System);
    this->message().flags.set(MessageFlag::Timeout);
    this->message().timeoutUser = action.target.name;
    this->message().count = count;

    QString text;

    if (action.isBan()) {
        if (action.reason.isEmpty()) {
            text = QString("%1 banned %2.")  //
                       .arg(action.source.name)
                       .arg(action.target.name);
        } else {
            text = QString("%1 banned %2: \"%3\".")  //
                       .arg(action.source.name)
                       .arg(action.target.name)
                       .arg(action.reason);
        }
    } else {
        if (action.reason.isEmpty()) {
            text = QString("%1 timed out %2 for %3.")  //
                       .arg(action.source.name)
                       .arg(action.target.name)
                       .arg(formatTime(action.duration));
        } else {
            text = QString("%1 timed out %2 for %3: \"%4\".")  //
                       .arg(action.source.name)
                       .arg(action.target.name)
                       .arg(formatTime(action.duration))
                       .arg(action.reason);
        }

        if (count > 1) {
            text.append(QString(" (%1 times)").arg(count));
        }
    }

    this->emplace<TextElement>(text, MessageElementFlag::Text,
                               MessageColor::System);
    this->message().searchText = text;
}

MessageBuilder::MessageBuilder(const UnbanAction &action)
{
    this->emplace<TimestampElement>();
    this->message().flags.set(MessageFlag::System);
    this->message().flags.set(MessageFlag::Untimeout);

    this->message().timeoutUser = action.target.name;

    QString text;

    if (action.wasBan()) {
        text = QString("%1 unbanned %2.")  //
                   .arg(action.source.name)
                   .arg(action.target.name);
    } else {
        text = QString("%1 untimedout %2.")  //
                   .arg(action.source.name)
                   .arg(action.target.name);
    }

    this->emplace<TextElement>(text, MessageElementFlag::Text,
                               MessageColor::System);
    this->message().searchText = text;
}

Message *MessageBuilder::operator->()
{
    return this->message_.get();
}

Message &MessageBuilder::message()
{
    return *this->message_;
}

MessagePtr MessageBuilder::release()
{
    return MessagePtr(this->message_.release());
}

void MessageBuilder::append(std::unique_ptr<MessageElement> element)
{
    this->message().elements.push_back(std::move(element));
}

QString MessageBuilder::matchLink(const QString &string)
{
    LinkParser linkParser(string);

    static QRegularExpression httpRegex(
        "\\bhttps?://", QRegularExpression::CaseInsensitiveOption);
    static QRegularExpression ftpRegex(
        "\\bftps?://", QRegularExpression::CaseInsensitiveOption);
    static QRegularExpression spotifyRegex(
        "\\bspotify:", QRegularExpression::CaseInsensitiveOption);

    if (!linkParser.hasMatch()) {
        return QString();
    }

    QString captured = linkParser.getCaptured();

    if (!captured.contains(httpRegex) && !captured.contains(ftpRegex) &&
        !captured.contains(spotifyRegex)) {
        captured.insert(0, "http://");
    }

    return captured;
}

}  // namespace chatterino