const { merge } = require('webpack-merge')
const webpackConfig = require('@nextcloud/webpack-vue-config')

const SassGetGridConfig = require('./src/utils/SassGetGridConfig')
const ModuleReplaceWebpackPlugin = require('module-replace-webpack-plugin')
const BabelLoaderExcludeNodeModulesExcept = require('babel-loader-exclude-node-modules-except')

const WorkboxPlugin = require('workbox-webpack-plugin')

const config = {
	module: {
		rules: [
			{
				test: /\.svg$/,
				// illustrations
				loader: 'raw-loader',
			},
			{
				test: /\.scss$/,
				use: [
					'style-loader',
					'css-loader',
					'postcss-loader',
					{
						loader: 'sass-loader',
						options: {
							sassOptions: {
								functions: {
									'get($keys)': SassGetGridConfig,
								},
							},
						},
					},
				],
			},
			{
				test: /\.js$/,
				loader: 'babel-loader',
				exclude: BabelLoaderExcludeNodeModulesExcept([
					'@essentials/request-timeout',
					'@nextcloud/event-bus',
					'camelcase',
					'hot-patcher',
					'semver',
					'vue-virtual-grid',
					'webdav',
				]),
			},
		],
	},
	plugins: [
		// patch webdav/dist/request.js
		new ModuleReplaceWebpackPlugin({
			modules: [{
				test: /request.js/,
				replace: './src/patchedRequest.js',
				exclude: [/patchedRequest.js$/],
			}],
		}),
		new WorkboxPlugin.GenerateSW({
			swDest: 'photos-service-worker.js',
			clientsClaim: true,
			skipWaiting: true,
			exclude: [new RegExp('.*')], // don't do precaching
			inlineWorkboxRuntime: true,
			sourcemap: false,

			// Define runtime caching rules.
			runtimeCaching: [{
				// Match any preview file request
				urlPattern: /^.*\/core\/preview\?fileId=.*/,

				// Apply a strategy.
				handler: 'CacheFirst',

				options: {
					// Use a custom cache name.
					cacheName: 'images',

					// Only cache 10000 images.
					expiration: {
						maxAgeSeconds: 3600 * 24 * 7, // one week
						maxEntries: 10000,
					},
				},
			}],
		}),
	],
}

// Remove svg from default url-loader
const svgRule = webpackConfig.module.rules.find(rule => rule.test && rule.test.toString().indexOf('|svg') !== -1)
svgRule.test = new RegExp(svgRule.test.toString().replace('|svg', ''))

// Merge configs
const mergedConfigs = merge(config, webpackConfig)

// Remove duplicate rules by the `test` key
mergedConfigs.module.rules = mergedConfigs.module.rules
	.filter((v, i, a) => a.findIndex(t => (t.test.toString() === v.test.toString())) === i)

// Merge rules by replacing existing tests
module.exports = mergedConfigs