/*
    Copyright 1998-2009, 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.hpp"
#include <fost/inifile.hpp>
#include <fost/unicode>


using namespace fostlib;


/*
    fostlib::exceptions::invalid_ini_line
*/


fostlib::exceptions::invalid_ini_line::invalid_ini_line( const fostlib::string &section, const fostlib::string &read, const fostlib::string &processed ) throw ()
: exception() {
    m_info << L"Section: " << section << std::endl << L"Line in INI file: '" << read << L"\'" << std::endl << L"Processed line: '" << processed << L"\'" << std::endl;
}


const wchar_t * const fostlib::exceptions::invalid_ini_line::message() const throw () {
    return L"Invalid line in INI file";
}


/*
    fostlib::ini_file
*/


fostlib::ini_file::ini_file(const fostlib::string &a_fileName)
: m_fileName(a_fileName) {
    loadAll();
}


void fostlib::ini_file::loadAll() {
    string section, line, file( utf::load_file( coerce< std::wstring >( m_fileName ), fostlib::string() ) );

    for ( fostlib::string::const_iterator pc( file.begin() ); pc != file.end(); ++pc ) {
        utf32 c( *pc );
        if ( c == L'\n' || c == L'\r' ) {
            fostlib::string read( line );
            line = line.substr( 0, line.find_last_not_of( L" \t" ) + 1 );
            if ( line.find_first_not_of( L" \t" ) != string::npos )
                line = line.substr( line.find_first_not_of( L" \t" ) );
            if ( line == L"" ) {
                // Blank line - ignore it
            } else if ( line[ 0 ] == L';' ) {
                // Comment line - ignore it
            } else if ( line[ 0 ] == L'[' ) {
                section = line.substr( 1, line.length() - 2 );
                if ( section == L"" || line.find( L']' ) == string::npos || section.find_first_of(  L"[]" ) != string::npos )
                    throw exceptions::invalid_ini_line( L"", read, section );
            } else {
                fostlib::string::size_type pos( line.find( L'=' ) );
                if ( pos == string::npos || section == L"" )
                    throw exceptions::invalid_ini_line( section, read, line );
                fostlib::string name( line.substr( 0, pos ) ), value( line.substr( pos + 1 ) );
                json js = json::parse( value, json() );
                if ( !value.empty() && js.isnull() )
                    m_settings.push_back( boost::shared_ptr< setting< string > >( new setting< string >( m_fileName, section, name, value, false ) ) );
                else
                    m_settings.push_back( boost::shared_ptr< setting< json > >( new setting< json >( m_fileName, section, name, js, false ) ) );
            }
            line = L"";
        } else
            line += c;
    }
}