import path from 'path'

import { readJSONSync } from 'fs-extra'

import jsonPlugin from '@rollup/plugin-json'

import commonjsPlugin from '@rollup/plugin-commonjs'

import replacePlugin from '@rollup/plugin-replace'

import aliasPlugin from '@rollup/plugin-alias'

import nodeResolvePlugin from '@rollup/plugin-node-resolve'

import licensePlugin from 'rollup-plugin-license'

import defaultsDeep from 'lodash/defaultsDeep'

import consola from 'consola'

import { builtins } from './builtins'

export default function rollupConfig ({

rootDir = process.cwd(),

plugins = [],

input = 'src/index.js',

replace = {},

alias = {},

externals = [],

resolve = {

only: [

/lodash/

]

},

...options

}, pkg) {

if (!pkg) {

pkg = readJSONSync(path.resolve(rootDir, 'package.json'))

}

const name = path.basename(pkg.name.replace('-edge', ''))

return defaultsDeep({}, options, {

input: path.resolve(rootDir, input),

output: {

dir: path.resolve(rootDir, 'dist'),

entryFileNames: `${name}.js`,

chunkFileNames: `${name}-[name].js`,

format: 'cjs',

preferConst: true

},

external: [

// Dependencies that will be installed alongise with the nuxt package

...Object.keys(pkg.dependencies || {}),

// Builtin node modules

...builtins,

// Explicit externals

...externals

],

plugins: [

aliasPlugin(alias),

replacePlugin({

exclude: 'node_modules/**',

delimiters: ['', ''],

values: {

__NODE_ENV__: process.env.NODE_ENV,

...replace

}

}),

nodeResolvePlugin(resolve),

commonjsPlugin(),

jsonPlugin(),

licensePlugin({

banner: [

'/*!',

` * ${pkg.name} v${pkg.version} (c) 2016-${new Date().getFullYear()}`,

`${(pkg.contributors || []).map(c => ` * - ${c.name}`).join('\n')}`,

' * - All the amazing contributors',

' * Released under the MIT License.',

' * Website: https://nuxtjs.org',

'*/'

].join('\n')

})

].concat(plugins),

onwarn (warning, warn) {

if (warning.plugin === 'rollup-plugin-license') {

return

}

consola.warn(warning)

}

})

}