/*
 *  Created by Phil on 31/12/2010.
 *  Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 */
#ifndef TWOBLUECUBES_CATCH_INTERFACES_REPORTER_H_INCLUDED
#define TWOBLUECUBES_CATCH_INTERFACES_REPORTER_H_INCLUDED

#include "catch_section_info.h"
#include "catch_common.h"
#include "catch_totals.hpp"
#include "catch_ptr.hpp"
#include "catch_config.hpp"
#include "catch_test_case_info.h"
#include "catch_assertionresult.h"
#include "catch_message.h"
#include "catch_option.hpp"

#include <string>
#include <ostream>
#include <map>

namespace Catch
{
    struct ReporterConfig {
        explicit ReporterConfig( IConfigPtr const& _fullConfig )
        :   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}

        ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream )
        :   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}

        std::ostream& stream() const    { return *m_stream; }
        IConfigPtr fullConfig() const { return m_fullConfig; }

    private:
        std::ostream* m_stream;
        IConfigPtr m_fullConfig;
    };

    struct ReporterPreferences {
        ReporterPreferences()
        : shouldRedirectStdOut( false )
        {}

        bool shouldRedirectStdOut;
    };

    template<typename T>
    struct LazyStat : Option<T> {
        LazyStat() : used( false ) {}
        LazyStat& operator=( T const& _value ) {
            Option<T>::operator=( _value );
            used = false;
            return *this;
        }
        void reset() {
            Option<T>::reset();
            used = false;
        }
        bool used;
    };

    struct TestRunInfo {
        TestRunInfo( std::string const& _name ) : name( _name ) {}
        std::string name;
    };
    struct GroupInfo {
        GroupInfo(  std::string const& _name,
                    std::size_t _groupIndex,
                    std::size_t _groupsCount )
        :   name( _name ),
            groupIndex( _groupIndex ),
            groupsCounts( _groupsCount )
        {}

        std::string name;
        std::size_t groupIndex;
        std::size_t groupsCounts;
    };

    struct AssertionStats {
        AssertionStats( AssertionResult const& _assertionResult,
                        std::vector<MessageInfo> const& _infoMessages,
                        Totals const& _totals )
        :   assertionResult( _assertionResult ),
            infoMessages( _infoMessages ),
            totals( _totals )
        {
            if( assertionResult.hasMessage() ) {
                // Copy message into messages list.
                // !TBD This should have been done earlier, somewhere
                MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
                builder << assertionResult.getMessage();
                builder.m_info.message = builder.m_stream.str();

                infoMessages.push_back( builder.m_info );
            }
        }
        virtual ~AssertionStats();

        AssertionStats( AssertionStats const& )              = default;
        AssertionStats( AssertionStats && )                  = default;
        AssertionStats& operator = ( AssertionStats const& ) = default;
        AssertionStats& operator = ( AssertionStats && )     = default;

        AssertionResult assertionResult;
        std::vector<MessageInfo> infoMessages;
        Totals totals;
    };

    struct SectionStats {
        SectionStats(   SectionInfo const& _sectionInfo,
                        Counts const& _assertions,
                        double _durationInSeconds,
                        bool _missingAssertions )
        :   sectionInfo( _sectionInfo ),
            assertions( _assertions ),
            durationInSeconds( _durationInSeconds ),
            missingAssertions( _missingAssertions )
        {}
        virtual ~SectionStats();
        SectionStats( SectionStats const& )              = default;
        SectionStats( SectionStats && )                  = default;
        SectionStats& operator = ( SectionStats const& ) = default;
        SectionStats& operator = ( SectionStats && )     = default;

        SectionInfo sectionInfo;
        Counts assertions;
        double durationInSeconds;
        bool missingAssertions;
    };

    struct TestCaseStats {
        TestCaseStats(  TestCaseInfo const& _testInfo,
                        Totals const& _totals,
                        std::string const& _stdOut,
                        std::string const& _stdErr,
                        bool _aborting )
        : testInfo( _testInfo ),
            totals( _totals ),
            stdOut( _stdOut ),
            stdErr( _stdErr ),
            aborting( _aborting )
        {}
        virtual ~TestCaseStats();

        TestCaseStats( TestCaseStats const& )              = default;
        TestCaseStats( TestCaseStats && )                  = default;
        TestCaseStats& operator = ( TestCaseStats const& ) = default;
        TestCaseStats& operator = ( TestCaseStats && )     = default;

        TestCaseInfo testInfo;
        Totals totals;
        std::string stdOut;
        std::string stdErr;
        bool aborting;
    };

    struct TestGroupStats {
        TestGroupStats( GroupInfo const& _groupInfo,
                        Totals const& _totals,
                        bool _aborting )
        :   groupInfo( _groupInfo ),
            totals( _totals ),
            aborting( _aborting )
        {}
        TestGroupStats( GroupInfo const& _groupInfo )
        :   groupInfo( _groupInfo ),
            aborting( false )
        {}
        virtual ~TestGroupStats();

        TestGroupStats( TestGroupStats const& )              = default;
        TestGroupStats( TestGroupStats && )                  = default;
        TestGroupStats& operator = ( TestGroupStats const& ) = default;
        TestGroupStats& operator = ( TestGroupStats && )     = default;

        GroupInfo groupInfo;
        Totals totals;
        bool aborting;
    };

    struct TestRunStats {
        TestRunStats(   TestRunInfo const& _runInfo,
                        Totals const& _totals,
                        bool _aborting )
        :   runInfo( _runInfo ),
            totals( _totals ),
            aborting( _aborting )
        {}
        virtual ~TestRunStats();

        TestRunStats( TestRunStats const& )              = default;
        TestRunStats( TestRunStats && )                  = default;
        TestRunStats& operator = ( TestRunStats const& ) = default;
        TestRunStats& operator = ( TestRunStats && )     = default;

        TestRunInfo runInfo;
        Totals totals;
        bool aborting;
    };

    class MultipleReporters;

    struct IStreamingReporter {
        virtual ~IStreamingReporter();

        // Implementing class must also provide the following static method:
        // static std::string getDescription();

        virtual ReporterPreferences getPreferences() const = 0;

        virtual void noMatchingTestCases( std::string const& spec ) = 0;

        virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
        virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;

        virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
        virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;

        virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;

        // The return value indicates if the messages buffer should be cleared:
        virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;

        virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
        virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
        virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
        virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;

        virtual void skipTest( TestCaseInfo const& testInfo ) = 0;

        virtual MultipleReporters* tryAsMulti() { return nullptr; }
    };
    using IStreamingReporterPtr = std::shared_ptr<IStreamingReporter>;

    struct IReporterFactory {
        virtual ~IReporterFactory();
        virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
        virtual std::string getDescription() const = 0;
    };
    using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

    struct IReporterRegistry {
        using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
        using Listeners = std::vector<IReporterFactoryPtr>;

        virtual ~IReporterRegistry();
        virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
        virtual FactoryMap const& getFactories() const = 0;
        virtual Listeners const& getListeners() const = 0;
    };

    IStreamingReporterPtr addReporter( IStreamingReporterPtr const& existingReporter, IStreamingReporterPtr const& additionalReporter );

}

#endif // TWOBLUECUBES_CATCH_INTERFACES_REPORTER_H_INCLUDED