/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.

// Description : Generic report class, which contains arbitrary report entries.

#ifndef CRYINCLUDE_EDITOR_REPORT_H
#define CRYINCLUDE_EDITOR_REPORT_H
#pragma once


class IReportField
{
public:
    virtual ~IReportField() {}

    virtual const char* GetDescription() const = 0;
    virtual const char* GetText() const = 0;
};

template <typename T, typename G>
class CReportField
    : public IReportField
{
public:
    typedef T Object;
    typedef G TextGetter;

    CReportField(Object& object, const char* description, TextGetter& getter);
    virtual const char* GetDescription() const;
    virtual const char* GetText() const;

private:
    TextGetter m_getter;
    string m_text;
    string m_description;
};

class IReportRecord
{
public:
    virtual ~IReportRecord() {}
    virtual int GetFieldCount() const = 0;
    virtual const char* GetFieldDescription(int fieldIndex) const = 0;
    virtual const char* GetFieldText(int fieldIndex) const = 0;
};

template <typename T>
class CReportRecord
    : public IReportRecord
{
public:
    typedef T Object;

    CReportRecord(Object& object);
    virtual ~CReportRecord();
    virtual int GetFieldCount() const;
    virtual const char* GetFieldDescription(int fieldIndex) const;
    virtual const char* GetFieldText(int fieldIndex) const;
    template <typename G>
    CReportField<Object, G>* AddField(const char* description, G& getter);

private:
    Object m_object;
    typedef std::vector<IReportField*> FieldContainer;
    FieldContainer m_fields;
};

class CReport
{
public:
    ~CReport();
    template <typename T>
    CReportRecord<T>* AddRecord(T& object);
    int GetRecordCount() const;
    IReportRecord* GetRecord(int recordIndex);
    void Clear();

private:
    typedef std::vector<IReportRecord*> RecordContainer;
    RecordContainer m_records;
};

template <typename T, typename G>
inline CReportField<T, G>::CReportField(Object& object, const char* description, TextGetter& getter)
    :   m_getter(getter)
    , m_description(description)
{
    m_text = m_getter(object);
}

template <typename T, typename G>
inline const char* CReportField<T, G>::GetDescription() const
{
    return m_description.c_str();
}

template <typename T, typename G>
inline const char* CReportField<T, G>::GetText() const
{
    return m_text.c_str();
}

template <typename T>
inline CReportRecord<T>::CReportRecord(Object& object)
    :   m_object(object)
{
}

template <typename T>
inline CReportRecord<T>::~CReportRecord()
{
    for (FieldContainer::iterator it = m_fields.begin(); it != m_fields.end(); ++it)
    {
        delete (*it);
    }
}

template <typename T>
inline int CReportRecord<T>::GetFieldCount() const
{
    return m_fields.size();
}

template <typename T>
inline const char* CReportRecord<T>::GetFieldDescription(int fieldIndex) const
{
    return m_fields[fieldIndex]->GetDescription();
}

template <typename T>
inline const char* CReportRecord<T>::GetFieldText(int fieldIndex) const
{
    return m_fields[fieldIndex]->GetText();
}

template <typename T>
template <typename G>
inline CReportField<T, G>* CReportRecord<T>::AddField(const char* description, G& getter)
{
    CReportField<Object, G>* field = new CReportField<Object, G>(m_object, description, getter);
    m_fields.push_back(field);
    return field;
}

inline CReport::~CReport()
{
    Clear();
}

template <typename T>
inline CReportRecord<T>* CReport::AddRecord(T& object)
{
    CReportRecord<T>* record = new CReportRecord<T>(object);
    m_records.push_back(record);
    return record;
}

inline int CReport::GetRecordCount() const
{
    return m_records.size();
}

inline IReportRecord* CReport::GetRecord(int recordIndex)
{
    return m_records[recordIndex];
}

inline void CReport::Clear()
{
    for (RecordContainer::iterator it = m_records.begin(); it != m_records.end(); ++it)
    {
        delete (*it);
    }
    m_records.clear();
}

#endif // CRYINCLUDE_EDITOR_REPORT_H