elk/modules/pwa/index.ts

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import { defineNuxtModule } from '@nuxt/kit'
import type { VitePluginPWAAPI } from 'vite-plugin-pwa'
import { VitePWA } from 'vite-plugin-pwa'
import type { Plugin } from 'vite'
import type { VitePWANuxtOptions } from './types'
import { configurePWAOptions } from './config'
import { type LocalizedWebManifest, createI18n, pwaLocales } from './i18n'
export * from './types'
export default defineNuxtModule<VitePWANuxtOptions>({
meta: {
name: 'pwa',
configKey: 'pwa',
},
defaults: nuxt => ({
base: nuxt.options.app.baseURL,
scope: nuxt.options.app.baseURL,
}),
async setup(options, nuxt) {
let vitePwaClientPlugin: Plugin | undefined
const resolveVitePluginPWAAPI = (): VitePluginPWAAPI | undefined => {
return vitePwaClientPlugin?.api
}
let webmanifests: LocalizedWebManifest | undefined
// 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 ${entry}`)
return JSON.stringify(manifest)
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}
viteInlineConfig.plugins.push({
name: 'elk:pwa:locales:build',
apply: 'build',
generateBundle(_, bundle) {
if (options.disable || !bundle)
return
Object.keys(webmanifests!).map(wm => [wm, `manifest-${wm}.webmanifest`]).forEach(([wm, fileName]) => {
bundle[fileName] = {
isAsset: true,
type: 'asset',
name: undefined,
source: generateManifest(wm),
fileName,
}
})
},
})
viteInlineConfig.plugins.push({
name: 'elk:pwa:locales:dev',
apply: 'serve',
configureServer(server) {
const localeMatcher = new RegExp(`^${nuxt.options.app.baseURL}manifest-(.*).webmanifest$`)
server.middlewares.use((req, res, next) => {
const match = req.url?.match(localeMatcher)
const entry = match && webmanifests![match[1]]
if (entry) {
res.statusCode = 200
res.setHeader('Content-Type', 'application/manifest+json')
res.write(JSON.stringify(entry), 'utf-8')
res.end()
}
else {
next()
}
})
},
})
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 || {}
for (const locale of pwaLocales) {
nitroConfig.routeRules![`/manifest-${locale.code}.webmanifest`] = {
headers: {
'Content-Type': 'application/manifest+json',
},
}
nitroConfig.routeRules![`/manifest-${locale.code}-dark.webmanifest`] = {
headers: {
'Content-Type': 'application/manifest+json',
},
}
}
})
nuxt.hook('nitro:init', (nitro) => {
nitro.hooks.hook('rollup:before', async () => {
await resolveVitePluginPWAAPI()?.generateSW()
})
})
}
},
})