import {existsSync, readFileSync} from 'fs';

import path from 'path';

import project from './project';

import {generateIntegrity} from './integrities';

import files from './files';

import {cdn} from './links';

export default function generateManifest(server) {

if(files['manifest.json']) return files['manifest.json'];

const file = path.join(__dirname, '../', 'public', 'manifest.json');

if(existsSync(file)) {

return readFileSync(file, 'utf-8');

}

const json = {

"name": project.name,

"short_name": project.shortName || project.name,

"theme_color": project.color,

"background_color": project.backgroundColor || project.color,

"display": project.display,

"orientation": project.orientation,

"scope": project.scope,

"start_url": project.root,

"icons": [],

"splash_pages": null

}

for(const size in project.icons) {

const icon = project.icons[size];

json.icons.push({

"src": cdn(icon),

"sizes": `${size}x${size}`,

"type": "image/png",

"purpose": "maskable any"

});

}

const manifest = JSON.stringify(json);

if(!server.less) {

generateIntegrity('manifest.json', manifest);

}

files['manifest.json'] = manifest;

return manifest;

}