'use strict';

const visit = require('unist-util-visit');

const referenceToLocalMdFile = /^(?![+a-z]+:)([^#?]+)\.md(#.+)?$/i;

module.exports = {

replaceLinks,

referenceToLocalMdFile,

};

function replaceLinks({ filename, linksMapper }) {

return (tree) => {

const fileHtmlUrls = linksMapper[filename];

visit(tree, (node) => {

if (node.url) {

node.url = node.url.replace(

referenceToLocalMdFile,

(_, filename, hash) => `${filename}.html${hash || ''}`

);

}

});

visit(tree, 'definition', (node) => {

const htmlUrl = fileHtmlUrls && fileHtmlUrls[node.identifier];

if (htmlUrl && typeof htmlUrl === 'string') {

node.url = htmlUrl;

}

});

};

}