'use strict';

const execa = require('execa');

const util = require('util');

const glob = util.promisify(require('glob'));

const updateSection = require('update-section');

const fs = require('fs-extra');

const path = require('path');

const rootDir = process.cwd();

var startInstall =

'<!-- START install generated instructions please keep comment here to allow auto update -->\n' +

"<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN yarn update-examples TO UPDATE -->",

endInstall =

'<!-- END install generated instructions please keep comment here to allow auto update -->';

function matchesStartInstall(line) {

return /<!-- START install /.test(line);

}

function matchesEndInstall(line) {

return /<!-- END install /.test(line);

}

function updateInstallSection(

example,

readme,

branch,

releaseBranches,

preReleaseBranches

) {

fs.readFile(readme).then(content => {

let update = '';

if (releaseBranches.includes(branch)) {

const preReleaseBranch = preReleaseBranches.includes(branch);

const tag = preReleaseBranch ? `@${branch}` : '';

const info = preReleaseBranch

? `\nThis is the ${branch} release documentation for this example\n\n`

: '';

update = `${info}Create and start the example:\n\n`;

update += `\`\`\`bash\nnpx create-razzle-app${tag} --example ${example} ${example}\n\n`;

update += `cd ${example}\nyarn start\n\`\`\`\n`;

} else {

update =

'\nThis is the development documentation for this example\n\nClone the `razzle` repository:\n\n';

update += `\`\`\`bash\ngit clone https://github.com/jaredpalmer/razzle.git\n\n`;

update += `cd razzle\nyarn install --frozen-lockfile --ignore-engines --network-timeout 30000\n\`\`\`\n\n`;

update += `Create and start the example:\n\n`;

update += `\`\`\`bash\nnode -e 'require("./test/fixtures/util").setupStageWithExample("${example}", "${example}", symlink=false, yarnlink=true, install=true, test=false);'\n\n`;

update += `cd ${example}\nyarn start\n\`\`\`\n`;

}

const contentString = content.toString();

if (matchesStartInstall(contentString)) {

const updated = updateSection(

contentString,

startInstall + update + endInstall,

matchesStartInstall,

matchesEndInstall

);

return fs.writeFile(readme, updated);

}

});

}

function updatePackageJson(

example,

packageJson,

branch,

dependencyVersions,

) {

fs.pathExists(packageJson).then(async exists => {

if (exists) {

const packageJsonData = JSON.parse(await fs.readFile(packageJson));

const newPackageJsonData = ['dependencies', 'devDependencies'].reduce(

(acc, depType) => {

if (acc[depType]) {

acc[depType] = Object.keys(acc[depType]).reduce((depsAcc, dep) => {

if (dependencyVersions[dep]) {

depsAcc[dep] = dependencyVersions[dep];

}

return depsAcc;

}, acc[depType]);

}

return acc;

},

packageJsonData

);

return fs.writeFile(

packageJson,

JSON.stringify(newPackageJsonData, null, ' ') + "\n"

);

}

});

}

execa('git', ['rev-parse', '--abbrev-ref', 'HEAD'], { shell: true }).then(

async ({ stdout }) => {

const branch = stdout.split('\n')[0];

const lernaJson = JSON.parse(

await fs.readFile(path.join(rootDir, 'lerna.json'))

);

const exampleDependencyVersions = JSON.parse(

await fs.readFile(

path.join(rootDir, 'scripts', 'exampleDependencyVersions.json')

)

);

const packageJsons = (

await Promise.all(

lernaJson.packages.map(item => glob(item + '/package.json'))

)

).flat();

const packageVersions = Object.fromEntries(

(

await Promise.all(

packageJsons.map(async item => JSON.parse(await fs.readFile(item)))

)

).map(item => [item.name, item.version])

);

const dependencyVersions = {

...exampleDependencyVersions,

...packageVersions,

};

const releaseBranches = lernaJson.command.publish.allowBranch;

const preReleaseBranches = releaseBranches.filter(b => b !== 'master');

fs.readdir(path.join(rootDir, 'examples'), { withFileTypes: true }).then(

items => {

return items

.filter(item => item.isDirectory())

.map(item => {

updateInstallSection(

item.name,

path.join(rootDir, 'examples', item.name, 'README.md'),

branch,

releaseBranches,

preReleaseBranches

);

updatePackageJson(

item.name,

path.join(rootDir, 'examples', item.name, 'package.json'),

branch,

dependencyVersions

);

});

}

);

updatePackageJson(

'default',

path.join(

rootDir,

'packages',

'create-razzle-app',

'templates',

'default',

'package.json'

),

branch,

dependencyVersions

);

const loadExamplePath =

'packages/create-razzle-app/lib/utils/load-example.js';

fs.readFile(loadExamplePath).then(content => {

const updated = content

.toString()

.replace(

/(?=const branch.*?yarn update-examples)(.*?)'.*?'/,

"$1'" + branch + "'"

);

return fs.writeFile(loadExamplePath, updated);

});

const installExamplePath = 'packages/create-razzle-app/lib/index.js';

fs.readFile(installExamplePath).then(content => {

const updated = content

.toString()

.replace(

/(?=const branch.*?yarn update-examples)(.*?)'.*?'/,

"$1'" + branch + "'"

);

return fs.writeFile(installExamplePath, updated);

});

}

);