window.CustomYoutube = window.CustomYoutube || {};

CustomYoutube = (function() {
    const selectors = {
        RecoverHeading: '#RecoverHeading',
        RecoverEmail: '#RecoverEmail',
        LoginHeading: '#LoginHeading'
    };

function _isSearchPage(){
	return /search/.test(window.location.href);
}

function _JSONToCSVConvertor(JSONData, ReportTitle, ShowLabel) {
    //If JSONData is not an object then JSON.parse will parse the JSON string in an Object
    var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;

    var CSV = '';
    //Set Report title in first row or line

    CSV += ReportTitle + '\r\n\n';

    //This condition will generate the Label/Header
    if (ShowLabel) {
        var row = "";

        //This loop will extract the label from 1st index of on array
        for (var index in arrData[0]) {

            //Now convert each value to string and comma-seprated
            row += index + ',';
        }

        row = row.slice(0, -1);

        //append Label row with line break
        CSV += row + '\r\n';
    }

    //1st loop is to extract each row
    for (var i = 0; i < arrData.length; i++) {
        var row = "";

        //2nd loop will extract each column and convert it in string comma-seprated
        for (var index in arrData[i]) {
            row += '"' + arrData[i][index] + '",';
        }

        row.slice(0, row.length - 1);

        //add a line break after each row
        CSV += row + '\r\n';
    }

    if (CSV == '') {
        alert("Invalid data");
        return;
    }

    //Generate a file name
    var fileName = "MyReport_";
    //this will remove the blank-spaces from the title and replace it with an underscore
    fileName += ReportTitle.replace(/ /g,"_");

    //Initialize file format you want csv or xls
    var uri = 'data:text/csv;charset=utf-8,' + escape(CSV);

    // Now the little tricky part.
    // you can use either>> window.open(uri);
    // but this will not work in some browsers
    // or you will not get the correct file extension

    //this trick will generate a temp <a /> tag
    var link = document.createElement("a");
    link.href = uri;

    //set the visibility hidden so it will not effect on your web-layout
    link.style = "visibility:hidden";
    link.download = fileName + ".csv";

    //this part will append the anchor tag and remove it after automatic click
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
}

function copyToClipboard(text) {
    if (window.clipboardData && window.clipboardData.setData) {
        // IE specific code path to prevent textarea being shown while dialog is visible.
        return clipboardData.setData("Text", text);

    } else if (document.queryCommandSupported && document.queryCommandSupported("copy")) {
        var textarea = document.createElement("textarea");
        textarea.textContent = text;
        textarea.style.position = "fixed";  // Prevent scrolling to bottom of page in MS Edge.
        document.body.appendChild(textarea);
        textarea.select();
        try {
            return document.execCommand("copy");  // Security exception may be thrown by some browsers.
        } catch (ex) {
            console.warn("Copy to clipboard failed.", ex);
            return false;
        } finally {
            document.body.removeChild(textarea);
        }
    }
}

function numberToEnglish( n ) {

	var string = n.toString(), units, tens, scales, start, end, chunks, chunksLen, chunk, ints, i, word, words, and = 'and';

	/* Remove spaces and commas */
	string = string.replace(/[, ]/g,"");

	/* Is number zero? */
	if( parseInt( string ) === 0 ) {
		return 'zero';
	}

	/* Array of units as words */
	units = [ '', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten', 'eleven', 'twelve', 'thirteen', 'fourteen', 'fifteen', 'sixteen', 'seventeen', 'eighteen', 'nineteen' ];

	/* Array of tens as words */
	tens = [ '', '', 'twenty', 'thirty', 'forty', 'fifty', 'sixty', 'seventy', 'eighty', 'ninety' ];

	/* Array of scales as words */
	scales = [ '', 'thousand', 'million', 'billion', 'trillion', 'quadrillion', 'quintillion', 'sextillion', 'septillion', 'octillion', 'nonillion', 'decillion', 'undecillion', 'duodecillion', 'tredecillion', 'quatttuor-decillion', 'quindecillion', 'sexdecillion', 'septen-decillion', 'octodecillion', 'novemdecillion', 'vigintillion', 'centillion' ];

	/* Split user arguemnt into 3 digit chunks from right to left */
	start = string.length;
	chunks = [];
	while( start > 0 ) {
		end = start;
		chunks.push( string.slice( ( start = Math.max( 0, start - 3 ) ), end ) );
	}

	/* Check if function has enough scale words to be able to stringify the user argument */
	chunksLen = chunks.length;
	if( chunksLen > scales.length ) {
		return '';
	}

	/* Stringify each integer in each chunk */
	words = [];
	for( i = 0; i < chunksLen; i++ ) {

		chunk = parseInt( chunks[i] );

		if( chunk ) {

			/* Split chunk into array of individual integers */
			ints = chunks[i].split( '' ).reverse().map( parseFloat );

			/* If tens integer is 1, i.e. 10, then add 10 to units integer */
			if( ints[1] === 1 ) {
				ints[0] += 10;
			}

			/* Add scale word if chunk is not zero and array item exists */
			if( ( word = scales[i] ) ) {
				words.push( word );
			}

			/* Add unit word if array item exists */
			if( ( word = units[ ints[0] ] ) ) {
				words.push( word );
			}

			/* Add tens word if array item exists */
			if( ( word = tens[ ints[1] ] ) ) {
				words.push( word );
			}

			/* Add 'and' string after units or tens integer if: */
			if( ints[0] || ints[1] ) {

				/* Chunk has a hundreds integer or chunk is the first of multiple chunks */
				if( ints[2] || (i + 1) > chunksLen ) {
					words.push( and );
				}


			}

			/* Add hundreds word if array item exists */
			if( ( word = units[ ints[2] ] ) ) {
				words.push( word + ' hundred' );
			}

		}

	}

	return words.reverse().join( ' ' );

}

String.prototype.replaceAll = function(obj) {
	let finalString = '';
	let word = this;
	for (let each of word){
		for (const o in obj){
			const value = obj[o];
			if (each == o){
				each = value;
			}
		}
		finalString += each;
	}

	return finalString;
};

function getAboutLinkAtSearchPage(){
    var users = document.querySelectorAll('#main-link[href]');
    var getAboutPage = (url) => `https://www.youtube.com${url}/about`
    var aboutPages = [];

    for (let each of users){
        let url = each.getAttribute('href');
		let subs = each.querySelector('#subscribers').textContent;
		let channelName = each.querySelector('#text.ytd-channel-name').textContent;
		let subsEnglish;

		const formatUrl = (() => {
			url = getAboutPage(url);
		})();

		const formatChannelName = (() => {
			channelName = channelName.trim();
		})();

		const formatSubs = (() => {
			subs = subs.replace('mil','000');
			subs = subs.replaceAll({'M':'0000', ',':'', ' ':''});
			subs = subs.replace(/\D/g,'');
		})();

		const formatSubsEnglish = (() => {
			subsEnglish = numberToEnglish(subs);
		})();

        aboutPages.push({
			channelName,
            url,
            subs,
			subsEnglish
        });
    }

    console.table(aboutPages);
    copyToClipboard([...aboutPages].map(e=>e.url).join('\n'));

}




    return {
        init: function() {
            document.addEventListener("DOMContentLoaded", function() {

                if (_isSearchPage()){

                }

            });
        },
        getAboutLinkAtSearchPage
    };
})();


CustomYoutube.init();