/*
 * Copyright (c) 2015 Cryptonomex, Inc., and contributors.
 *
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#pragma once
#pragma GCC diagnostic ignored "-Wunknown-pragmas"

#include <graphene/chain/protocol/transaction.hpp>

#include <QDateTime>
#include <QObject>
#include <QQmlListProperty>
#include <QDebug>

class OperationBase;
class Transaction : public QObject {
   Q_OBJECT

public:
   enum Status { Unbroadcasted, Pending, Complete, Failed };
   Q_ENUM(Status);

   Status status() const { return m_status; }
   QString statusString() const;
   QQmlListProperty<OperationBase> operations();

   OperationBase* operationAt(int index) const;
   int operationCount() const {
      return m_transaction.operations.size();
   }

   graphene::chain::signed_transaction& internalTransaction() {
      return m_transaction;
   }

   QDateTime expiration() const
   {
      return QDateTime::fromTime_t(m_transaction.expiration.sec_since_epoch());
   }

public Q_SLOTS:
   void setStatus(Status status)
   {
      if (status == m_status)
         return;

      m_status = status;
      qDebug() << status;
      emit statusChanged(status);
   }

   /**
    * @brief Append the operation to the transaction
    * @param op The operation to append. This Transaction will take ownership of the operation.
    */
   void appendOperation(OperationBase* op);
   void clearOperations() {
      m_transaction.operations.clear();
      Q_EMIT operationsChanged();
   }

   void setExpiration(QDateTime expiration)
   {
      fc::time_point_sec exp(expiration.toTime_t());
      if (exp == m_transaction.expiration)
         return;

      m_transaction.expiration = exp;
      emit expirationChanged(expiration);
   }

signals:
   void statusChanged(Status status);
   void operationsChanged();

   void expirationChanged(QDateTime expiration);

private:
   Q_PROPERTY(Status status READ status WRITE setStatus NOTIFY statusChanged)
   Q_PROPERTY(QString statusString READ statusString NOTIFY statusChanged STORED false)
   Q_PROPERTY(QQmlListProperty<OperationBase> operations READ operations NOTIFY operationsChanged)
   Q_PROPERTY(QDateTime expiration READ expiration WRITE setExpiration NOTIFY expirationChanged)

   Status m_status = Unbroadcasted;
   graphene::chain::signed_transaction m_transaction;
};