/*
 * Copyright 2004-2006  Ace Jones <acejones@users.sourceforge.net>
 * Copyright 2006       Darren Gould <darren_gould@gmx.de>
 * Copyright 2007-2010  Alvaro Soliverez <asoliverez@gmail.com>
 * Copyright 2017-2018  Łukasz Wojniłowicz <lukasz.wojnilowicz@gmail.com>
 * Copyright 2018       Michael Kiefer <Michael-Kiefer@web.de>
 *
 * This program 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 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MYMONEYREPORT_H
#define MYMONEYREPORT_H

// ----------------------------------------------------------------------------
// QT Includes

// ----------------------------------------------------------------------------
// Project Includes
#include "mymoneyobject.h"
#include "mymoneytransactionfilter.h"
#include "kmm_mymoney_export.h"
#include "mymoneyunittestable.h"

class QString;
class MyMoneyAccount;

template <typename T> class QList;

namespace eMyMoney { namespace Account { enum class Type; }
                     namespace TransactionFilter { enum class Date; } }

namespace eMyMoney { namespace Report { enum class RowType; } }
namespace eMyMoney { namespace Report { enum class ReportType; } }
namespace eMyMoney { namespace Report { enum class ColumnType; } }
namespace eMyMoney { namespace Report { enum QueryColumn : int; } }
namespace eMyMoney { namespace Report { enum class DetailLevel; } }
namespace eMyMoney { namespace Report { enum class InvestmentSum; } }
namespace eMyMoney { namespace Report { enum class ChartType; } }
namespace eMyMoney { namespace Report { enum class DataLock; } }
namespace eMyMoney { namespace Report { enum class ChartPalette; } }

/**
  * This class defines a report within the MyMoneyEngine.  The report class
  * contains all the configuration parameters needed to run a report, plus
  * XML serialization.
  *
  * A report is a transactionfilter, so any report can specify which
  * transactions it's interested down to the most minute level of detail.
  * It extends the transactionfilter by providing identification (name,
  * comments, group type, etc) as well as layout information (what kind
  * of layout should be used, how the rows & columns should be presented,
  * currency converted, etc.)
  *
  * As noted above, this class only provides a report DEFINITION.  The
  * generation and presentation of the report itself are left to higher
  * level classes.
  *
  * @author Ace Jones <acejones@users.sourceforge.net>
  */

class MyMoneyReportPrivate;
class KMM_MYMONEY_EXPORT MyMoneyReport: public MyMoneyObject, public MyMoneyTransactionFilter
{
  Q_DECLARE_PRIVATE_D(MyMoneyObject::d_ptr, MyMoneyReport)

  KMM_MYMONEY_UNIT_TESTABLE

public:
  MyMoneyReport();
  explicit MyMoneyReport(const QString &id);

  explicit MyMoneyReport(eMyMoney::Report::RowType rt,
                         unsigned ct,
                         eMyMoney::TransactionFilter::Date dl,
                         eMyMoney::Report::DetailLevel ss,
                         const QString& name,
                         const QString& comment);

  MyMoneyReport(const QString& id,
                const MyMoneyReport& other);

  MyMoneyReport(const MyMoneyReport & other);
  MyMoneyReport(MyMoneyReport && other);
  MyMoneyReport & operator=(MyMoneyReport other);
  friend void swap(MyMoneyReport& first, MyMoneyReport& second);

  ~MyMoneyReport();

  eMyMoney::Report::ReportType reportType() const;
  void setReportType(eMyMoney::Report::ReportType rt);

  QString name() const;
  void setName(const QString& s);

  bool isShowingRowTotals() const;
  void setShowingRowTotals(bool f);

  bool isShowingColumnTotals() const;
  void setShowingColumnTotals(bool f);

  eMyMoney::Report::RowType rowType() const;
  void setRowType(eMyMoney::Report::RowType rt);
  bool isRunningSum() const;

  eMyMoney::Report::ColumnType columnType() const;
  void setColumnType(eMyMoney::Report::ColumnType ct);

  bool isConvertCurrency() const;
  void setConvertCurrency(bool f);
  uint columnPitch() const;

  QString comment() const;
  void setComment(const QString& comment);

  eMyMoney::Report::QueryColumn queryColumns() const;
  void setQueryColumns(eMyMoney::Report::QueryColumn qc);

  QString group() const;
  void setGroup(const QString& group);

  bool isFavorite() const;
  void setFavorite(bool f);

  bool isTax() const;
  void setTax(bool f);

  bool isInvestmentsOnly() const;
  void setInvestmentsOnly(bool f);

  bool isLoansOnly() const;
  void setLoansOnly(bool f);

  eMyMoney::Report::DetailLevel detailLevel() const;
  void setDetailLevel(eMyMoney::Report::DetailLevel detail);

  eMyMoney::Report::InvestmentSum investmentSum() const;
  void setInvestmentSum(eMyMoney::Report::InvestmentSum sum);

  bool isHideTransactions() const;
  void setHideTransactions(bool f);

  eMyMoney::Report::ChartType chartType() const;
  void setChartType(eMyMoney::Report::ChartType type);

  eMyMoney::Report::ChartPalette chartPalette() const;
  void setChartPalette(eMyMoney::Report::ChartPalette type);

  bool isChartDataLabels() const;
  void setChartDataLabels(bool f);

  bool isChartCHGridLines() const;
  void setChartCHGridLines(bool f);

  bool isChartSVGridLines() const;
  void setChartSVGridLines(bool f);

  bool isChartByDefault() const;
  void setChartByDefault(bool f);

  uint chartLineWidth() const;
  void setChartLineWidth(uint f);

  bool isLogYAxis() const;
  void setLogYAxis(bool f);

  bool isNegExpenses() const;
  void setNegExpenses(bool f);

  QString dataRangeStart() const;
  void setDataRangeStart(const QString& f);

  QString dataRangeEnd() const;
  void setDataRangeEnd(const QString& f);

  QString dataMajorTick() const;
  void setDataMajorTick(const QString& f);

  QString dataMinorTick() const;
  void setDataMinorTick(const QString& f);

  uint yLabelsPrecision() const;
  void setYLabelsPrecision(int f);

  bool isIncludingSchedules() const;
  void setIncludingSchedules(bool f);

  bool isColumnsAreDays() const;
  void setColumnsAreDays(bool f);

  bool isIncludingTransfers() const;
  void setIncludingTransfers(bool f);

  bool isIncludingUnusedAccounts() const;
  void setIncludingUnusedAccounts(bool f);

  bool hasBudget() const;
  QString budget() const;

  /**
    * Sets the budget used for this report
    *
    * @param budget The ID of the budget to use, or an empty string
    * to indicate a budget is NOT included
    * @param fa Whether to display actual data alongside the budget.
    * Setting to false means the report displays ONLY the budget itself.
    * @warning For now, the budget ID is ignored.  The budget id is
    * simply checked for any non-empty string, and if so, hasBudget()
    * will return true.
    */
  void setBudget(const QString& budget, bool fa = true);

  bool isIncludingBudgetActuals() const;
  void setIncludingBudgetActuals(bool f);

  bool isIncludingForecast() const;
  void setIncludingForecast(bool f);

  bool isIncludingMovingAverage() const;
  void setIncludingMovingAverage(bool f);

  int movingAverageDays() const;
  void setMovingAverageDays(int days);

  bool isIncludingPrice() const;
  void setIncludingPrice(bool f);

  bool isIncludingAveragePrice() const;
  void setIncludingAveragePrice(bool f);

  eMyMoney::Report::DataLock dataFilter() const;
  bool isDataUserDefined() const;
  void setDataFilter(eMyMoney::Report::DataLock u);

  eMyMoney::TransactionFilter::Date dateRange() const;
  bool isDateUserDefined() const;

  /**
    * Set the underlying date filter and LOCK that filter to the specified
    * range.  For example, if @p _u is "CurrentMonth", this report should always
    * be updated to the current month no matter when the report is run.
    *
    * This updating is not entirely automatic, you should update it yourself by
    * calling updateDateFilter.
    *
    * @param _u The date range constant (MyMoneyTransactionFilter::dateRangeE)
    *          which this report should be locked to.
    */

  void setDateFilter(eMyMoney::TransactionFilter::Date u);

  /**
    * Set the underlying date filter using the start and end dates provided.
    * Note that this does not LOCK to any range like setDateFilter(unsigned)
    * above.  It is just a reimplementation of the MyMoneyTransactionFilter
    * version.
    *
    * @param _db The inclusive begin date of the date range
    * @param _de The inclusive end date of the date range
    */

  void setDateFilter(const QDate& db, const QDate& de);

  /**
    * Set the underlying date filter using the 'date lock' property.
    *
    * Always call this function before executing the report to be sure that
    * the date filters properly match the plain-language 'date lock'.
    *
    * For example, if the report is date-locked to "Current Month", and the
    * last time you loaded or ran the report was in August, but it's now
    * September, this function will update the date range to be September,
    * as is proper.
    */
  void updateDateFilter();

  bool isMixedTime() const;
  void setMixedTime(bool f);

  int currentDateColumn() const;
  void setCurrentDateColumn(int f);

  uint settlementPeriod() const;
  void setSettlementPeriod(uint days);

  bool isShowingSTLTCapitalGains() const;
  void setShowSTLTCapitalGains(bool f);

  QDate termSeparator() const;
  void setTermSeparator(const QDate& date);

  bool isSkippingZero() const;
  void setSkipZero(int f);

  /**
    * This method allows you to clear the underlying transaction filter
    */
  void clearTransactionFilter();

  /**
    * This method allows you to set the underlying transaction filter
    *
    * @param _filter The filter which should replace the existing transaction
    * filter.
    */
  void assignFilter(const MyMoneyTransactionFilter& filter);

  /**
    * Retrieves a VALID beginning & ending date for this report.
    *
    * The underlying date filter can return en empty QDate() for either the
    * begin or end date or both.  This is typically unacceptable for reports,
    * which need the REAL begin and end date.
    *
    * This function gets the underlying date filter range, and if either is
    * an empty QDate(), it determines the missing date from looking at all
    * the transactions which match the underlying filter, and returning the
    * date of the first or last transaction (as appropriate).
    *
    * @param _db The inclusive begin date of the date range
    * @param _de The inclusive end date of the date range
    */
  void validDateRange(QDate &db, QDate &de);

  /**
    * This method turns on the account group filter and adds the
    * @p type to the list of allowed groups.
    *
    * Note that account group filtering is handled differently
    * than all the filters of the underlying class.  This filter
    * is meant to be applied to individual splits of matched
    * transactions AFTER the underlying filter is used to find
    * the matching transactions.
    *
    * @param type the account group to add to the allowed groups list
    */
  void addAccountGroup(eMyMoney::Account::Type type);

  /**
    * This method returns whether an account group filter has been set,
    * and if so, it returns all the account groups set in the filter.
    *
    * @param list list to append account groups into
    * @return return true if an account group filter has been set
    */
  bool accountGroups(QList<eMyMoney::Account::Type>& list) const;

  /**
    * This method returns whether the specified account group
    * is allowed by the account groups filter.
    *
    * @param type group to append account groups into
    * @return return true if an account group filter has been set
    */
  bool includesAccountGroup(eMyMoney::Account::Type type) const;

  /**
    * This method is used to test whether a specific account
    * passes the accountGroup test and either the Account or
    * Category test, depending on which sort of Account it is.
    *
    * The m_tax and m_investments properties are also considered.
    *
    * @param acc the account in question
    * @return true if account is in filter set, false otherwise
    */
  bool includes(const MyMoneyAccount& acc) const;

  /**
    * This method checks if a reference to the given object exists. It returns,
    * a @p true if the object is referencing the one requested by the
    * parameter @p id. If it does not, this method returns @p false.
    *
    * @param id id of the object to be checked for references
    * @retval true This object references object with id @p id.
    * @retval false This object does not reference the object with id @p id.
    */
  bool hasReferenceTo(const QString& id) const override;

  /**
   * Return row type as string.
   *
   * @param type type to get string for
   * @return row type converted to string
   */
  static QString toString(eMyMoney::Report::RowType type);

  /**
   * Return report type as string.
   *
   * @param type report type to get string for
   * @return report type converted to string
   */
  static QString toString(eMyMoney::Report::ReportType type);

  /**
    * This method allows to modify and retrieve the default lineWidth for graphs.
    * The default is 2.
    */
  static void setLineWidth(int width);
  static int lineWidth();

  // set the expert mode which shows equity accounts for some reports
  static void setExpertMode(bool expertMode);

private:
  void addAccountGroupsByRowType(eMyMoney::Report::RowType rt);

private:
  /**
    * This member keeps the current setting for line graphs lineWidth.
    * @sa setLineWidth()
    */
  static int m_lineWidth;

  static bool m_expertMode;
};

inline void swap(MyMoneyReport& first, MyMoneyReport& second) // krazy:exclude=inline
{
  using std::swap;
  swap(first.MyMoneyObject::d_ptr, second.MyMoneyObject::d_ptr);
  swap(first.MyMoneyTransactionFilter::d_ptr, second.MyMoneyTransactionFilter::d_ptr);
}

inline MyMoneyReport::MyMoneyReport(MyMoneyReport && other) : MyMoneyReport() // krazy:exclude=inline
{
  swap(*this, other);
}

inline MyMoneyReport & MyMoneyReport::operator=(MyMoneyReport other) // krazy:exclude=inline
{
  swap(*this, other);
  return *this;
}

/**
  * Make it possible to hold @ref MyMoneyReport objects inside @ref QVariant objects.
  */
Q_DECLARE_METATYPE(MyMoneyReport)

#endif // MYMONEYREPORT_H