//
// This file is part of Kepka,
// an unofficial desktop version of Telegram messaging app,
// see https://github.com/procxx/kepka
//
// Kepka 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.
//
// It 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.
//
// In addition, as a special exception, the copyright holders give permission
// to link the code of portions of this program with the OpenSSL library.
//
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
//
#pragma once

#include "history/history.h"
#include "structs.h"

namespace Ui {
class FlatTextarea;
} // namespace Ui

namespace Data {

void applyPeerCloudDraft(PeerId peerId, const MTPDdraftMessage &draft);
void clearPeerCloudDraft(PeerId peerId);

struct Draft {
	Draft() {}
	Draft(const TextWithTags &textWithTags, MsgId msgId, const MessageCursor &cursor, bool previewCancelled,
	      mtpRequestId saveRequestId = 0)
	    : textWithTags(textWithTags)
	    , msgId(msgId)
	    , cursor(cursor)
	    , previewCancelled(previewCancelled)
	    , saveRequestId(saveRequestId) {}
	Draft(const Ui::FlatTextarea *field, MsgId msgId, bool previewCancelled, mtpRequestId saveRequestId = 0);

	QDateTime date;
	TextWithTags textWithTags;
	MsgId msgId = 0; // replyToId for message draft, editMsgId for edit draft
	MessageCursor cursor;
	bool previewCancelled = false;
	mtpRequestId saveRequestId = 0;
};

inline bool draftStringIsEmpty(const QString &text) {
	for_const (auto ch, text) {
		if (!ch.isSpace()) {
			return false;
		}
	}
	return true;
}

inline bool draftIsNull(Draft *draft) {
	return !draft || (draftStringIsEmpty(draft->textWithTags.text) && !draft->msgId);
}

inline bool draftsAreEqual(Draft *a, Draft *b) {
	bool aIsNull = draftIsNull(a);
	bool bIsNull = draftIsNull(b);
	if (aIsNull) {
		return bIsNull;
	} else if (bIsNull) {
		return false;
	}

	return (a->textWithTags == b->textWithTags) && (a->msgId == b->msgId) &&
	       (a->previewCancelled == b->previewCancelled);
}

} // namespace Data