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import React, {Children} from 'react';
const INDENT = ' ';
function stringRepresentationForJsx(item) {
if (typeof item === 'string') {
return `'${item}'`;
} else if (typeof item === 'number') {
return item.toString();
} else if (Array.isArray(item)) {
return `[${item.map(val => stringRepresentationForJsx(val)).toString()}]`;
}
else if (typeof item === 'boolean') {
return item.toString();
}
else if (typeof item === 'function') {
return item.toString().replace(/\s{2,}/g, ' ');
} else if (typeof item === 'object') {
let repr = '{';
for (let key in item) {
if (item.hasOwnProperty(key)) {
repr += `${key}: ${stringRepresentationForJsx(item[key])}, `;
}
}
repr = repr.slice(0, -2);
repr += '}';
return repr;
}
}
function parseProps(jsx, indentCount) {
let result = '';
for (let prop in jsx.props) {
let value = jsx.props[prop];
if (prop !== 'children' && value) {
let repr = stringRepresentationForJsx(value);
let isString = repr.startsWith("'");
result += `\n${INDENT.repeat(indentCount)}${prop}`;
if (value !== true) {
result += `=${isString ? '' : '{ '}${stringRepresentationForJsx(value)}${isString ? '' : ' }'}`;
}
}
}
return result;
}
function jsxToString({jsx, indentCount=0, exclude}) {
if (typeof jsx === 'string'){
return jsx;
}
let name = typeof jsx.type === 'string' ? jsx.type : jsx.type.name;
let result = name === exclude ? ''
: `${INDENT.repeat(indentCount)}<${name}${parseProps(jsx, indentCount + 1)}`;
if (jsx.props.hasOwnProperty('children')) {
let {children} = jsx.props;
let childrenArr = Children.toArray(children);
if (name !== exclude) { result += '>\n';}
if (typeof children === 'string') {
result += `${INDENT.repeat(indentCount + 1)}${children}\n`;
} else {
let newIndentCount = name === exclude ? indentCount : indentCount + 1;
childrenArr.forEach(child => result += `${jsxToString({jsx: child, indentCount: newIndentCount})}\n`);
}
const closingTag = name === exclude ? ''
: `${INDENT.repeat(indentCount)}</${name}>`;
return result + closingTag;
}
return result + ' />';
}
export default jsxToString;
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