/*
The software in this package is distributed under the GNU General
Public License version 2 (with a special exception described below).

A copy of GNU General Public License (GPL) is included in this distribution,
in the file COPYING.GPL.

As a special exception, if other files instantiate templates or use macros
or inline functions from this file, or you compile this file and link it
with other works to produce a work based on this file, this file
does not by itself cause the resulting work to be covered
by the GNU General Public License.

However the source code for this file must still be made available
in accordance with section (3) of the GNU General Public License.

This exception does not invalidate any other reasons why a work based
on this file might be covered by the GNU General Public License.
*/
/** @file
 *
 * (c) Copyright 2008 by Intra2net AG
 */

#include <string>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <list>
#include <vector>
#include <set>

#define BOOST_TEST_DYN_LINK
#include <boost/test/unit_test.hpp>

#include <i2n_global_config.hpp>
#include <filefunc.hxx>
#include <logfunc.hpp>


#ifdef NOISEDEBUG
#define DOUT(msg) std::cout << msg << std::endl
#else
#define DOUT(msg) do {} while (0)
#endif


using namespace I2n;

class TestGlobalConfigFixture
{
protected:
    std::set<std::string>  used_check_files;

    std::string getCheckFilepath(std::string tag)
    {
        std::string result;
        result= "__unittest__" + tag + ".dat";
        used_check_files.insert(result);
        return result;
    } // eo get_check_file_path

    void removeCheckFiles()
    {
        for(std::set<std::string>::iterator it= used_check_files.begin();
            it != used_check_files.end();
            ++it)
        {
            std::string filepath(*it);
            if (path_exists(filepath))
            {
                unlink(filepath);
            }
        }
        used_check_files.clear();
    } // eo removeCheckFiles

public:
    TestGlobalConfigFixture()
    {
        //Logger::enable_stderr_log(true);
        //Logger::set_log_level( Logger::LogLevel::Debug );
        used_check_files.clear();
    }

    ~TestGlobalConfigFixture()
    {
        removeCheckFiles();
        //Logger::enable_stderr_log(false);
        //Logger::set_log_level( Logger::LogLevel::Error );
    }
};

BOOST_FIXTURE_TEST_SUITE(TestGlobalConfig, TestGlobalConfigFixture)

BOOST_AUTO_TEST_CASE(Basics)
{
    std::string filename= getCheckFilepath("Basics");
    std::string cfg(
        "a path= /var/run/my.pid\n"
        "\n"
        "[sec1]\n"
        "s1 = ein Text\n"
        "i1 = 100\n"
        "f1 = 2.5\n"
    );
    std::string cfg2(
        "a path= /var/run/my.pid\n"
        "\n"
        "[sec1]\n"
        "s1 = ein Text\n"
        "i1 = 10\n"
        "f1 = 3.5\n"
        "i2 = 010\n"
        "i3 = 0x10\n"
    );
    bool res= write_file(filename,cfg);
    BOOST_CHECK_EQUAL( true, res );

    Config::Var<std::string> var_s1("sec1", "s1", "nix");

    res= Config::set_config_file(filename);
    BOOST_CHECK_EQUAL( true, res );

    BOOST_CHECK_EQUAL( std::string("ein Text"), (std::string)var_s1 );

    Config::Var<int> var_i1("sec1","i1",0);
    BOOST_CHECK_EQUAL( 100, var_i1() );

    Config::Var<double> var_f1("sec1","f1", 0.0);
    BOOST_CHECK_EQUAL( 2.5, var_f1() );

    Config::Var<const std::string> pid_path("a path", "/var/run/x.pid");
    BOOST_CHECK_EQUAL( std::string("/var/run/my.pid"), pid_path() ); 

    // try an already used var again as different type:
    Config::Var<std::string> var_i1s("sec1","i1","0");
    BOOST_CHECK_EQUAL( std::string("100"), var_i1s() );


    // make a copy from a given var:
    Config::Var< int > var_i1_2 ( var_i1 );
    BOOST_CHECK_EQUAL( 100, var_i1_2() );

    // now write a modified config
    res= write_file(filename,cfg2);
    BOOST_CHECK_EQUAL( true, res );

    // .. and reload.
    res= Config::reload();
    BOOST_CHECK_EQUAL( true, res );

    // check if the (right) vars changed..

    BOOST_CHECK_EQUAL( std::string("ein Text"), (std::string)var_s1 );
    BOOST_CHECK_EQUAL( 10, var_i1() );
    BOOST_CHECK_EQUAL( std::string("10"), var_i1s() );
    BOOST_CHECK_EQUAL( 3.5, var_f1() );
    BOOST_CHECK_EQUAL( 10, var_i1_2() );

    // check for the new vars

    Config::Var<int, Config::AutoIntConverter<int> > var_i2("sec1","i2",0);
    BOOST_CHECK_EQUAL( 8, var_i2() );

    Config::Var<int, Config::AutoIntConverter<int> > var_i3("sec1","i3",0);
    BOOST_CHECK_EQUAL( 16, var_i3() );
} // eo Basics



BOOST_AUTO_TEST_CASE(MultipleValues)
{
    std::string filename= getCheckFilepath("MultipleValues");
    std::string cfg(
        "[sec1]\n"
        "g1 = 11\n"
        "g1 = 12\n"
        "g2 = 21\n"
        "g2 = 22\n"
        "g1 = 13\n"
        "g1 = 14\n"
    );
    std::string cfg2(
        "[sec1]\n"
        "g1 = 11\n"
        "g1 = 12\n"
        "g2 = 20\n"
        "g2 = 22\n"
        "g1 = 13\n"
    );

    bool res= write_file(filename,cfg);
    BOOST_CHECK_EQUAL( true, res );

    typedef std::list< int > IntList;
    typedef std::vector< int > IntVector;

    res= Config::set_config_file(filename);
    BOOST_CHECK_EQUAL( true, res );

    Config::Var< IntList > list1("sec1","g1", IntList());
    Config::Var< IntList > list2("sec1","g2", IntList());

    BOOST_CHECK_EQUAL( 4u, list1().size() );
    BOOST_CHECK_EQUAL( 2u, list2().size() );

    BOOST_CHECK_EQUAL( 11, list1().front() );
    BOOST_CHECK_EQUAL( 14, list1().back() );
    BOOST_CHECK_EQUAL( 21, list2().front() );
    BOOST_CHECK_EQUAL( 22, list2().back() );

    Config::Var< IntVector > vector1("sec1","g1", IntVector());
    Config::Var< IntVector > vector2("sec1","g2", IntVector());

    BOOST_CHECK_EQUAL( 4u, vector1().size() );
    BOOST_CHECK_EQUAL( 2u, vector2().size() );

    BOOST_CHECK_EQUAL( 11, vector1().front() );
    BOOST_CHECK_EQUAL( 14, vector1().back() );
    BOOST_CHECK_EQUAL( 21, vector2().front() );
    BOOST_CHECK_EQUAL( 22, vector2().back() );

    // now write a modified config
    res= write_file(filename,cfg2);
    BOOST_CHECK_EQUAL( true, res );

    // .. and reload.
    res= Config::reload();
    BOOST_CHECK_EQUAL( true, res );

    // check if the (right) vars changed..

    BOOST_CHECK_EQUAL( 3u, list1().size() );
    BOOST_CHECK_EQUAL( 2u, list2().size() );

    BOOST_CHECK_EQUAL( 11, list1().front() );
    BOOST_CHECK_EQUAL( 13, list1().back() );
    BOOST_CHECK_EQUAL( 20, list2().front() );
    BOOST_CHECK_EQUAL( 22, list2().back() );

} // eo MultipleValues


BOOST_AUTO_TEST_CASE(MultipleValuesVanish)
{
    std::string filename= getCheckFilepath("MultipleValuesVanish");
    std::string cfg(
        "[sec1]\n"
        "g1 = 11\n"
        "g1 = 12\n"
        "g2 = 21\n"
    );
    std::string cfg2(
        "[sec1]\n"
        "g1 = 11\n"
    );

    bool res= write_file(filename,cfg);
    BOOST_CHECK_EQUAL( true, res );

    typedef std::list< int > IntList;
    typedef std::vector< int > IntVector;

    res= Config::set_config_file(filename);
    BOOST_CHECK_EQUAL( true, res );

    Config::Var< IntList > list1("sec1","g1", IntList());
    Config::Var< IntList > list2("sec1","g2", IntList());

    BOOST_CHECK_EQUAL( 2u, list1().size() );
    BOOST_CHECK_EQUAL( 1u, list2().size() );

    BOOST_CHECK_EQUAL( 11, list1().front() );
    BOOST_CHECK_EQUAL( 12, list1().back() );
    BOOST_CHECK_EQUAL( 21, list2().front() );
    BOOST_CHECK_EQUAL( 21, list2().back() );

    Config::Var< IntVector > vector1("sec1","g1", IntVector());
    Config::Var< IntVector > vector2("sec1","g2", IntVector());

    BOOST_CHECK_EQUAL( 2u, vector1().size() );
    BOOST_CHECK_EQUAL( 1u, vector2().size() );

    BOOST_CHECK_EQUAL( 11, vector1().front() );
    BOOST_CHECK_EQUAL( 12, vector1().back() );
    BOOST_CHECK_EQUAL( 21, vector2().front() );
    BOOST_CHECK_EQUAL( 21, vector2().back() );

    // now write a modified config
    res= write_file(filename,cfg2);
    BOOST_CHECK_EQUAL( true, res );

    // .. and reload.
    res= Config::reload();
    BOOST_CHECK_EQUAL( true, res );

    // check if the (right) vars changed..

    BOOST_CHECK_EQUAL( 1u, list1().size() );
    BOOST_CHECK_EQUAL( 0u, list2().size() );

    BOOST_CHECK_EQUAL( 11, list1().front() );

} // eo MultipleValuesVanish

BOOST_AUTO_TEST_SUITE_END()