elk/modules/pwa/index.ts

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import { mkdir, readFile, writeFile } from 'node:fs/promises'
import type { Buffer } from 'node:buffer'
import { dirname } from 'node:path'
import { fileURLToPath } from 'node:url'
import { addPlugin, createResolver, defineNuxtModule } from '@nuxt/kit'
import type { VitePluginPWAAPI } from 'vite-plugin-pwa'
import { VitePWA } from 'vite-plugin-pwa'
import type { Plugin } from 'vite'
import { join, resolve } from 'pathe'
import type { VitePWANuxtOptions } from './types'
import { configurePWAOptions } from './config'
import { type LocalizedWebManifest, createI18n, pwaLocales } from './i18n'
export * from './types'
interface PwaDevIcon {
src: string
type: string
}
interface ResolvedPwaDevIcon extends PwaDevIcon {
data: Promise<Buffer>
}
export default defineNuxtModule<VitePWANuxtOptions>({
meta: {
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name: 'elk-pwa',
configKey: 'pwa',
},
defaults: nuxt => ({
base: nuxt.options.app.baseURL,
scope: nuxt.options.app.baseURL,
}),
async setup(options, nuxt) {
const resolver = createResolver(import.meta.url)
let vitePwaClientPlugin: Plugin | undefined
const resolveVitePluginPWAAPI = (): VitePluginPWAAPI | undefined => {
return vitePwaClientPlugin?.api
}
let webmanifests: LocalizedWebManifest | undefined
nuxt.options.appConfig = nuxt.options.appConfig || {}
nuxt.options.appConfig.pwaEnabled = !options.disable
nuxt.options.nitro.publicAssets = nuxt.options.nitro.publicAssets || []
const manifestDir = join(nuxt.options.buildDir, 'manifests')
nuxt.options.nitro.publicAssets.push({
dir: manifestDir,
baseURL: '/',
maxAge: 0,
})
// Register PWA types
nuxt.hook('prepare:types', ({ references }) => {
// TODO: remove this once JetBrains fixes the issue with types: remove also the dts file
references.push({ path: resolver.resolve('runtime/types') })
references.push({ types: 'vite-plugin-pwa/info' })
references.push({ types: 'vite-plugin-pwa/vue' })
})
if (!options.disable) {
// Inject $pwa helper throughout app
addPlugin({ src: resolver.resolve('./runtime/pwa-plugin.client') })
}
// TODO: combine with configurePWAOptions?
nuxt.hook('nitro:init', (nitro) => {
options.outDir = nitro.options.output.publicDir
options.injectManifest = options.injectManifest || {}
options.injectManifest.globDirectory = nitro.options.output.publicDir
})
nuxt.hook('vite:extend', ({ config }) => {
const plugin = config.plugins?.find(p => p && typeof p === 'object' && 'name' in p && p.name === 'vite-plugin-pwa')
if (plugin)
throw new Error('Remove vite-plugin-pwa plugin from Vite Plugins entry in Nuxt config file!')
})
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nuxt.hook('vite:extendConfig', async (viteInlineConfig, { isClient }) => {
viteInlineConfig.plugins = viteInlineConfig.plugins || []
const plugin = viteInlineConfig.plugins.find(p => p && typeof p === 'object' && 'name' in p && p.name === 'vite-plugin-pwa')
if (plugin)
throw new Error('Remove vite-plugin-pwa plugin from Vite Plugins entry in Nuxt config file!')
webmanifests = await createI18n()
const generateManifest = (entry: string) => {
const manifest = webmanifests![entry]
if (!manifest)
throw new Error(`No webmanifest found for locale/theme ${entry}`)
return JSON.stringify(manifest)
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}
if (isClient) {
viteInlineConfig.plugins.push({
name: 'elk:pwa:locales:build',
apply: 'build',
async writeBundle(_options, bundle) {
if (options.disable || !bundle)
return
await mkdir(manifestDir, { recursive: true })
for (const wm in webmanifests)
await writeFile(join(manifestDir, `manifest-${wm}.webmanifest`), generateManifest(wm))
},
})
}
viteInlineConfig.plugins.push({
name: 'elk:pwa:dev',
apply: 'serve',
configureServer(server) {
const icons: PwaDevIcon[] = webmanifests?.['en-US']?.icons as any
const mappedIcons: PwaDevIcon[] = [
...icons.map(({ src, type }) => ({ src, type })),
{ src: 'favicon.ico', type: 'image/x-icon' },
{ src: 'apple-touch-icon.png', type: 'image/png' },
{ src: 'logo.svg', type: 'image/svg+xml' },
]
const folder = dirname(fileURLToPath(import.meta.url))
const useIcons = mappedIcons.reduce((acc, icon) => {
icon.src = `${nuxt.options.app.baseURL}${icon.src}`
acc[icon.src] = {
...icon,
data: readFile(resolve(join(folder, '../../public-dev', icon.src))),
}
return acc
}, <Record<string, ResolvedPwaDevIcon>>{})
const localeMatcher = new RegExp(`^${nuxt.options.app.baseURL}manifest-(.*).webmanifest$`)
server.middlewares.use(async (req, res, next) => {
const url = req.url
if (!url)
return next()
const match = url.match(localeMatcher)
const entry = match && webmanifests![match[1]]
if (entry) {
res.statusCode = 200
res.setHeader('Content-Type', 'application/manifest+json')
res.setHeader('Cache-Control', 'public, max-age=0, must-revalidate')
res.write(JSON.stringify(entry), 'utf-8')
res.end()
return
}
const icon = useIcons[url]
if (!icon)
return next()
res.statusCode = 200
res.setHeader('Content-Type', icon.type)
res.setHeader('Cache-Control', 'public, max-age=0, must-revalidate')
res.write(await icon.data)
res.end()
})
},
})
configurePWAOptions(options, nuxt)
const plugins = VitePWA(options)
viteInlineConfig.plugins.push(plugins)
if (isClient)
vitePwaClientPlugin = plugins.find(p => p.name === 'vite-plugin-pwa') as Plugin
})
if (nuxt.options.dev) {
const webManifest = `${nuxt.options.app.baseURL}${options.devOptions?.webManifestUrl ?? options.manifestFilename ?? 'manifest.webmanifest'}`
const devSw = `${nuxt.options.app.baseURL}dev-sw.js?dev-sw`
const workbox = `${nuxt.options.app.baseURL}workbox-`
// @ts-expect-error just ignore
const emptyHandle = (_req, _res, next) => {
next()
}
nuxt.hook('vite:serverCreated', (viteServer, { isServer }) => {
if (isServer)
return
viteServer.middlewares.stack.push({ route: webManifest, handle: emptyHandle })
if (webmanifests) {
Object.keys(webmanifests).forEach((wm) => {
viteServer.middlewares.stack.push({
route: `${nuxt.options.app.baseURL}manifest-${wm}.webmanifest`,
handle: emptyHandle,
})
})
}
viteServer.middlewares.stack.push({ route: devSw, handle: emptyHandle })
})
if (!options.strategies || options.strategies === 'generateSW') {
nuxt.hook('vite:serverCreated', (viteServer, { isServer }) => {
if (isServer)
return
viteServer.middlewares.stack.push({ route: workbox, handle: emptyHandle })
})
nuxt.hook('close', async () => {
// todo: cleanup dev-dist folder
})
}
}
else {
nuxt.hook('nitro:config', async (nitroConfig) => {
nitroConfig.routeRules = nitroConfig.routeRules || {}
nitroConfig.routeRules!['/sw.js'] = {
headers: {
'Cache-Control': 'public, max-age=0, must-revalidate',
},
}
for (const locale of pwaLocales) {
nitroConfig.routeRules![`/manifest-${locale.code}.webmanifest`] = {
headers: {
'Content-Type': 'application/manifest+json',
'Cache-Control': 'public, max-age=0, must-revalidate',
},
}
nitroConfig.routeRules![`/manifest-${locale.code}-dark.webmanifest`] = {
headers: {
'Content-Type': 'application/manifest+json',
'Cache-Control': 'public, max-age=0, must-revalidate',
},
}
}
})
nuxt.hook('nitro:build:public-assets', async () => {
await resolveVitePluginPWAAPI()?.generateSW()
})
}
},
})