var request = require('request');
var Iconv1 = require('iconv').Iconv;
var cheerio = require('cheerio');

//detailed info
request(
    {
        uri: 'http://cleanair.seoul.go.kr/air_city.htm?method=measure',
        encoding: 'binary',
    },
    function (err, response, body) {
        var strContents = new Buffer(body, 'binary');
        iconv = new Iconv1('euc-kr', 'UTF8');
        strContents = iconv.convert(strContents).toString();
        //console.log(strContents);

        var $ = cheerio.load(strContents);
        console.log('\n<' + $('.ft_point1', '.graph_h4').text() + '>');

        $('tbody tr', '.tbl2').each(function () {
            var strArea = $(this).find('td').eq(0).html().replace(/\s+/, '');

            strArea = strArea.replace(/(\r\n|\n|\r)/gm, '');
            strArea = strArea.replace(/\s+/, '');
            //strArea = padding_right(strArea, ' ', 5);

            if (
                strArea == '금천구' ||
                strArea == '강남구' ||
                strArea == '양천구'
            ) {
                var strVal10 = $(this)
                    .find('td')
                    .eq(1)
                    .html()
                    .replace(/\s+/, '');
                strVal10 = strVal10.replace(/(\r\n|\n|\r)/gm, '');
                strVal10 = strVal10.replace(/\s+/, '');

                var strVal2_5 = $(this)
                    .find('td')
                    .eq(2)
                    .html()
                    .replace(/\s+/, '');
                strVal2_5 = strVal2_5.replace(/(\r\n|\n|\r)/gm, '');
                strVal2_5 = strVal2_5.replace(/\s+/, '');

                var strStatus = $(this)
                    .find('td')
                    .eq(7)
                    .html()
                    .replace(/\s+/, '');
                strStatus = strStatus.replace(/(\r\n|\n|\r)/gm, '');
                strStatus = strStatus.replace(/\s+/, '');

                var strDeterminationFactor = $(this)
                    .find('td')
                    .eq(8)
                    .html()
                    .replace(/\s+/, '');
                strDeterminationFactor = strDeterminationFactor.replace(
                    /(\r\n|\n|\r)/gm,
                    ''
                );
                strDeterminationFactor = strDeterminationFactor.replace(
                    /\s+/,
                    ''
                );

                var strVal9 = $(this)
                    .find('td')
                    .eq(9)
                    .html()
                    .replace(/\s+/, '');
                strVal9 = strVal9.replace(/(\r\n|\n|\r)/gm, '');
                strVal9 = strVal9.replace(/\s+/, '');
                strVal9 = strVal9.replace('</sub>', '');
                strVal9 = strVal9.replace('<sub>2', '²');

                console.log(
                    '-' +
                        strArea +
                        ': PM10=' +
                        strVal10 +
                        ' / PM2.5=' +
                        strVal2_5 +
                        ' / ' +
                        strStatus +
                        ' / ' +
                        '결정물질:' +
                        strVal9 +
                        ' [' +
                        strDeterminationFactor +
                        ']'
                );
            }
        });

        //summary info
        request(
            { uri: 'http://cleanair.seoul.go.kr/main.htm', encoding: 'binary' },
            function (err, response, body) {
                var strContents = new Buffer(body, 'binary');
                iconv = new Iconv1('euc-kr', 'UTF8');
                strContents = iconv.convert(strContents).toString();
                //console.log(strContents);
                var $ = cheerio.load(strContents);

                console.log(
                    '\n* 서울 미세먼지 평균 농도 : ' +
                        $('.average ', '.w154').text()
                );

                $('.al_c').each(function () {
                    var strTemper = $(this)
                        .find('td')
                        .eq(0)
                        .html()
                        .replace(/\s+/, '');
                    strTemper = strTemper.replace(/(\r\n|\n|\r)/gm, '');
                    strTemper = strTemper.replace(/\s+/, '');
                    strTemper = strTemper.replace('&deg;C', '℃');

                    console.log('* 온도 : ' + strTemper);

                    var strHum = $(this)
                        .find('td')
                        .eq(1)
                        .html()
                        .replace(/\s+/, '');
                    strHum = strHum.replace(/(\r\n|\n|\r)/gm, '');
                    strHum = strHum.replace(/\s+/, '');
                    console.log('* 습도 : ' + strHum);

                    var strWinDest = $(this)
                        .find('td')
                        .eq(2)
                        .html()
                        .replace(/\s+/, '');
                    strWinDest = strWinDest.replace(/(\r\n|\n|\r)/gm, '');
                    strWinDest = strWinDest.replace(/\s+/, '');
                    console.log('* 풍향 : ' + strWinDest);

                    var strWin = $(this)
                        .find('td')
                        .eq(3)
                        .html()
                        .replace(/\s+/, '');
                    strWin = strWin.replace(/(\r\n|\n|\r)/gm, '');
                    strWin = strWin.replace(/\s+/, '');
                    console.log('* 풍속 : ' + strWin);
                });
            }
        );
    }
);