channelimporter.h

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// -*- Mode: c++ -*-
/*
 *  Copyright (C) Daniel Kristjansson 2007
 *
 *  This file is licensed under GPL v2 or (at your option) any later version.
 *
 */
 
#ifndef CHANNEL_IMPORTER_H
#define CHANNEL_IMPORTER_H
 
// C++ headers
#include <cstring>
 
// Qt headers
#include <QMap>
#include <QObject>
#include <QString>
#include <QCoreApplication>
 
// MythTV headers
#include "mythtvexp.h"
#include "scaninfo.h"
#include "channelscantypes.h"
#include "mythmainwindow.h"
 
enum OkCancelType {
    kOCTCancelAll = -1,
    kOCTCancel    = +0,
    kOCTOk        = +1,
    kOCTOkAll     = +2,
};
 
using ChanStats = std::array<uint,3>;
 
class ChannelImporterBasicStats
{
  public:
    ChannelImporterBasicStats() = default;
 
    // totals
    ChanStats m_atscChannels {};
    ChanStats m_dvbChannels  {};
    ChanStats m_scteChannels {};
    ChanStats m_mpegChannels {};
    ChanStats m_ntscChannels {};
 
    // per channel counts
    QMap<uint,uint>    m_progNumCnt;
    QMap<uint,uint>    m_atscNumCnt;
    QMap<uint,uint>    m_atscMinCnt;
    QMap<uint,uint>    m_atscMajCnt;
    QMap<QString,uint> m_chanNumCnt;
};
 
class ChannelImporterUniquenessStats
{
  public:
    ChannelImporterUniquenessStats() = default;
 
    uint m_uniqueProgNum {0};
    uint m_uniqueAtscNum {0};
    uint m_uniqueAtscMin {0};
    uint m_uniqueChanNum {0};
    uint m_uniqueTotal   {0};
    uint m_maxAtscMajCnt {0};
};
 
class MTV_PUBLIC ChannelImporter : public QObject
{
    Q_OBJECT
 
  public:
    ChannelImporter(bool gui, bool interactive,
                    bool _delete, bool insert, bool save,
                    bool fta_only, bool lcn_only, bool complete_only,
                    bool full_channel_search,
                    bool remove_duplicates,
                    ServiceRequirements service_requirements,
                    bool success = false) :
        m_useGui(gui),
        m_isInteractive(interactive),
        m_doDelete(_delete),
        m_doInsert(insert),
        m_doSave(save),
        m_ftaOnly(fta_only),
        m_lcnOnly(lcn_only),
        m_completeOnly(complete_only),
        m_fullChannelSearch(full_channel_search),
        m_removeDuplicates(remove_duplicates),
        m_success(success),
        m_serviceRequirements(service_requirements) { }
 
    void Process(const ScanDTVTransportList &_transports, int sourceid = -1);
 
  protected:
    enum DeleteAction
    {
        kDeleteAll,
        kDeleteManual,
        kDeleteIgnoreAll,
        kDeleteInvisibleAll,
    };
    enum InsertAction
    {
        kInsertAll,
        kInsertManual,
        kInsertIgnoreAll,
    };
    enum UpdateAction
    {
        kUpdateAll,
        kUpdateManual,
        kUpdateIgnoreAll,
    };
 
    enum ChannelType
    {
        kChannelTypeFirst = 0,
 
        kChannelTypeNonConflictingFirst = kChannelTypeFirst,
        kATSCNonConflicting = kChannelTypeFirst,
        kDVBNonConflicting,
        kSCTENonConflicting,
        kMPEGNonConflicting,
        kNTSCNonConflicting,
        kChannelTypeNonConflictingLast = kNTSCNonConflicting,
 
        kChannelTypeConflictingFirst,
        kATSCConflicting = kChannelTypeConflictingFirst,
        kDVBConflicting,
        kSCTEConflicting,
        kMPEGConflicting,
        kNTSCConflicting,
        kChannelTypeConflictingLast = kNTSCConflicting,
        kChannelTypeLast = kChannelTypeConflictingLast,
    };
 
    static QString toString(ChannelType type);
 
    static void MergeSameFrequency(ScanDTVTransportList &transports);
    static void RemoveDuplicates(ScanDTVTransportList &transports, ScanDTVTransportList &duplicates);
    void FilterServices(ScanDTVTransportList &transports) const;
    static void FilterRelocatedServices(ScanDTVTransportList &transports);
 
    ScanDTVTransportList GetDBTransports(
        uint sourceid, ScanDTVTransportList &transports) const;
 
    uint DeleteChannels(ScanDTVTransportList &transports);
    uint DeleteUnusedTransports(uint sourceid);
 
    void InsertChannels(const ScanDTVTransportList &transports,
                        const ChannelImporterBasicStats &info);
 
    ScanDTVTransportList InsertChannels(
        const ScanDTVTransportList &transports,
        const ChannelImporterBasicStats &info,
        InsertAction action,
        ChannelType type,
        ScanDTVTransportList &inserted,
        ScanDTVTransportList &skipped);
 
    ScanDTVTransportList UpdateChannels(
        const ScanDTVTransportList &transports,
        const ChannelImporterBasicStats &info,
        UpdateAction action,
        ChannelType type,
        ScanDTVTransportList &updated,
        ScanDTVTransportList &skipped) const;
 
    DeleteAction QueryUserDelete(const QString &msg);
 
    InsertAction QueryUserInsert(const QString &msg);
 
    UpdateAction QueryUserUpdate(const QString &msg);
 
    OkCancelType QueryUserResolve(
        const ScanDTVTransport          &transport,
        ChannelInsertInfo               &chan);
 
    OkCancelType QueryUserInsert(
        const ScanDTVTransport          &transport,
        ChannelInsertInfo               &chan);
 
    static QString ComputeSuggestedChannelNum(
        const ChannelInsertInfo         &chan);
 
    OkCancelType ShowManualChannelPopup(
        MythMainWindow *parent, const QString& title,
        const QString& message, QString &text);
 
    OkCancelType ShowResolveChannelPopup(
        MythMainWindow *parent, const QString& title,
        const QString& message, QString &text);
 
    static void FixUpOpenCable(ScanDTVTransportList &transports);
 
    static ChannelImporterBasicStats CollectStats(
        const ScanDTVTransportList &transports);
 
    static ChannelImporterUniquenessStats CollectUniquenessStats(
        const ScanDTVTransportList &transports,
        const ChannelImporterBasicStats &info);
 
    static QString FormatChannels(
        const ScanDTVTransportList      &transports,
        const ChannelImporterBasicStats *info = nullptr);
 
    static QString FormatChannel(
        const ScanDTVTransport          &transport,
        const ChannelInsertInfo         &chan,
        const ChannelImporterBasicStats *info = nullptr);
 
    static QString SimpleFormatChannel(
        const ScanDTVTransport          &transport,
        const ChannelInsertInfo         &chan);
 
    static QString FormatTransport(
        const ScanDTVTransport          &transport);
 
    static QString FormatTransports(
        const ScanDTVTransportList      &transports_in);
 
    static QString GetSummary(
        const ChannelImporterBasicStats      &info,
        const ChannelImporterUniquenessStats &stats);
 
    static bool IsType(
        const ChannelImporterBasicStats &info,
        const ChannelInsertInfo &chan, ChannelType type);
 
    static void CountChannels(
        const ScanDTVTransportList &transports,
        const ChannelImporterBasicStats &info,
        ChannelType type, uint &new_chan, uint &old_chan);
 
    static int SimpleCountChannels(
        const ScanDTVTransportList &transports);
 
    static bool CheckChannelNumber(
        const QString           &num,
        const ChannelInsertInfo &chan);
 
    static void AddChanToCopy(
        ScanDTVTransport &transport_copy,
        const ScanDTVTransport &transport,
        const ChannelInsertInfo &chan);
 
  private:
    bool m_useGui;
    bool m_isInteractive;
    bool m_doDelete;
    bool m_doInsert;
    bool m_doSave;
    bool m_ftaOnly                      {true};     // Only FreeToAir (non-encrypted) channels desired post scan?
    bool m_lcnOnly                      {false};    // Only services with logical channel numbers desired post scan?
    bool m_completeOnly                 {true};     // Only services with complete scandata desired post scan?
    bool m_keepChannelNumbers           {true};     // Keep existing channel numbers on channel update
    bool m_fullChannelSearch            {false};    // Full search for old channels across transports in database
    bool m_removeDuplicates             {false};    // Remove duplicate transports and channels in scan
    bool m_success                      {false};    // To pass information IPTV channel scan succeeded
    int  m_functorRetval                {0};
 
    ServiceRequirements m_serviceRequirements;  // Services desired post scan
    QEventLoop          m_eventLoop;
};
 
#endif // CHANNEL_IMPORTER_H