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/** * Copyright (c) 2017 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license */
/* eslint-disable */import {	csvParse as d3CsvParse,	tsvParse as d3TsvParse,	csvParseRows as d3CsvParseRows,	tsvParseRows as d3TsvParseRows,} from "d3-dsv";
export {columns, json, rows, url, csv, tsv};
/***** Functions to be executed on Web Worker ***** * NOTE: Don't allowed to use * - arrow function syntax * - Utils functions *//** * Convert Columns data * @param {object} columns * @returns {Array} * @private */function columns(columns) {	const newRows: any[] = [];
	columns.forEach(function(col, i) {		const key = col[0];
		col.forEach(function(v, j) {			if (j > 0) {				if (typeof newRows[j - 1] === "undefined") {					newRows[j - 1] = {};				}
				if (typeof v === "undefined") {					throw new Error(`Source data is missing a component at (${i}, ${j})!`);				}
				newRows[j - 1][key] = v;			}		});	});
	return newRows;}
/** * Convert Rows data * @param {object} columns * @returns {Array} * @private */function rows(rows) {	const keys = rows[0];	const newRows: any[] = [];
	rows.forEach(function(row, i) {		if (i > 0) {			const newRow = {};
			row.forEach(function(v, j) {				if (typeof v === "undefined") {					throw new Error(`Source data is missing a component at (${i}, ${j})!`);				}
				newRow[keys[j]] = v;			});
			newRows.push(newRow);		}	});
	return newRows;}
/** * Convert JSON data * @param {object} columns * @returns {Array} * @private */function json(json, keysParam) {    const newRows: string[][] = [];	const findValueInJson = function(object, path) {		if (object[path] !== undefined) {			return object[path];		}
		const convertedPath = path.replace(/\[(\w+)\]/g, ".$1"); // convert indexes to properties (replace [] with .)		const pathArray = convertedPath.replace(/^\./, "").split("."); // strip a leading dot		let target = object;
		pathArray.some(function(k) {            return !(			    target = target && k in target ?				    target[k] : undefined		    );        });
		return target;	};
    let targetKeys: string[];    let data;
    if (Array.isArray(json)) {        if (keysParam.x) {            targetKeys = keysParam.value.concat(keysParam.x);        } else {            targetKeys = keysParam.value;        }
        newRows.push(targetKeys);
        json.forEach(function(o) {            const newRow = targetKeys.map(function(key) {                // convert undefined to null because undefined data will be removed in convertDataToTargets()                let v = findValueInJson(o, key);
                if (typeof v === "undefined") {                    v = null;                }
                return v;            });
            newRows.push(newRow);        });
        data = rows(newRows);    } else {        Object.keys(json).forEach(function(key) {            const tmp = json[key].concat();
            tmp.unshift(key);            newRows.push(tmp);        });
        data = columns(newRows);    }
    return data;}
/***** Functions can't be executed on Web Worker *****//** * Convert URL data * @param {string} url Remote URL * @param {string} mimeType MIME type string: json | csv | tsv * @param {object} headers Header object * @param {object} keys Key object * @param {Function} done Callback function * @private */function url(url: string, mimeType = "csv", headers: object, keys: object, done: Function): void {    const req = new XMLHttpRequest();    const converter = {csv, tsv, json};
    req.open("GET", url);
    if (headers) {        Object.keys(headers).forEach(function(key) {            req.setRequestHeader(key, headers[key]);        });    }
    req.onreadystatechange = function() {        if (req.readyState === 4) {            if (req.status === 200) {                const response = req.responseText;
				response && done.call(this,					converter[mimeType](						mimeType === "json" ? JSON.parse(response) : response,						keys					));            } else {                throw new Error(`${url}: Something went wrong loading!`);            }        }    };
    req.send();}
/** * Convert CSV/TSV data * @param {object} parser Parser object * @param {object} xsv Data * @returns {object} * @private */ function convertCsvTsvToData(parser, xsv) {	const rows = parser.rows(xsv);	let d;
	if (rows.length === 1) {		d = [{}];
		rows[0].forEach(id => {			d[0][id] = null;		});	} else {		d = parser.parse(xsv);	}
	return d;}
function csv(xsv) {	return convertCsvTsvToData({		rows: d3CsvParseRows,		parse: d3CsvParse	}, xsv);}
function tsv(tsv) {	return convertCsvTsvToData({		rows: d3TsvParseRows,		parse: d3TsvParse	}, tsv);}