#! /usr/bin/env node

import { execSync } from 'child_process';

import { glob } from 'glob10';

import { writeFile, readFileSync } from 'fs';

import { stringify } from 'csv-stringify';

import cliProgress from 'cli-progress';

console.log('Building CSV file...');

console.time('csvCreation');

const allDocs = await glob('src/content/docs/**/*.mdx', {

ignore: [

'**/index.mdx',

'src/content/docs/release-notes/**/*.mdx',

'src/content/docs/style-guide/**/*.mdx',

'src/content/whats-new/**/*.mdx',

'src/content/docs/security/new-relic-security/security-bulletins/**/*.mdx',

],

});

const freshnessFrontmatterKey = 'freshnessValidatedDate: ';

/**

* Reads a doc file and extracts the `freshnessValidatedDate` value from frontmatter

* @param {String} doc - doc file path

* @returns {String} freshnessDate - date string | `never` | null

**/

const getFreshnessFrontmatter = (doc) => {

// split the doc using the frontmatter delimiter and keep the frontmatter data

const frontmatter = readFileSync(doc, 'utf-8').split('---')[1];

let freshnessDate;

if (frontmatter?.includes(freshnessFrontmatterKey)) {

freshnessDate = frontmatter

.split('\n')

// find the line with the freshnessDate, there should always be one, and remove the key

.filter((string) => string.includes(freshnessFrontmatterKey))[0]

.replace(freshnessFrontmatterKey, '');

} else {

freshnessDate = null;

}

return freshnessDate?.includes('never') | (freshnessDate === null)

? freshnessDate

: new Date(freshnessDate).toDateString();

};

const progressBar = new cliProgress.SingleBar(

{},

cliProgress.Presets.shades_classic

);

progressBar.start(allDocs.length, 0);

const allDocsAndDates = allDocs.map((doc, i) => {

// get date of most recent commit

const gitLogModifiedDate = execSync(

`git log -1 --pretty=format:%aI ${doc}`

).toString();

const dateModified = new Date(gitLogModifiedDate).toDateString();

const freshnessDate = getFreshnessFrontmatter(doc);

// get author and date for each commit in last 180 days. split into an array

const authorData = execSync(

`git log --format=%an,%aI --since=180.days ${doc}`

)

.toString()

.split('\n');

// remove empty element from trailing new line

authorData.pop();

// shorten date to YYYY-MM-DD and return author data formatted for readability

const authorsAndDates = authorData.map((author) => {

const [name, date] = author.split(',');

return `[${name} - ${date?.slice(0, 10)}]`;

});

progressBar.update(i + 1);

return [doc, freshnessDate, dateModified, authorsAndDates.toString()];

});

const headers = [

'Doc',

'Freshness Date',

'Last Modified Date',

'Recent Authors',

];

allDocsAndDates.unshift(headers);

stringify(allDocsAndDates, function (err, output) {

writeFile('docsLastModifiedDate.csv', output, 'utf8', function (err) {

if (err) {

console.log(

'Some error occurred - file either not saved or corrupted file saved.'

);

} else {

console.log('\n');

console.timeEnd('csvCreation');

console.log('CSV Created!');

progressBar.stop();

}

});

});