/*
    Copyright 2008, Felspar Co Ltd. http://fost.3.felspar.com/
    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
*/


#include <fost/cli>
#include <fost/main.hpp>


namespace {
    // Set the default count to be 100
    const fostlib::setting< int > c_count( L"FizzBuzz main.cpp", L"FizzBuzz", L"Count", 100, true );

    void fizzbuzz( fostlib::ostream &out );
}


FSL_MAIN(
    L"FizzBuzz",
    L"FizzBuzz\nCopyright (c) 2008 Felspar Co. Ltd."
)( fostlib::ostream &out, fostlib::arguments &args ) {
    // Where we can store any numeric setting we're given
    boost::scoped_ptr< fostlib::setting< int > > count;
    if ( args.size() == 2 )
        count.reset( new fostlib::setting< int >( L"Command line", c_count, fostlib::coerce< int >( args[ 1 ] ) ) );
    fizzbuzz( out );
    return 0;
}


namespace {
    void fizzbuzz( fostlib::ostream &out ) {
        for ( int i = 1; i <= c_count.value(); ++i ) {
            fostlib::string o;
            if ( i % 3 == 0 )
                o += L"Fizz";
            if ( i % 5 == 0 )
                o += L"Buzz";
            out << ( o.empty() ? fostlib::coerce< fostlib::string >( i ) : o ) << ' ';
        }
        out << std::endl;
    }
}