feat: create logger; update cached articles on load

src/components/Library.astro

@@ -17,7 +17,9 @@ export interface Props {
   import type { AppConfig } from '../pages/index.astro';
   import { getPostCard, renderPost } from '../utils/library'
   import { cozify } from '../utils/sanitizer';
+  import { logError, logInfo } from '../utils/logger.mjs';
   const cache = await caches.open('cozy-reader');
+  const baseUrl = window.location.origin;
   let url= new URL(window.location.href);
   // only cached unencoded url param
   const urlParam = url.searchParams.get('url')
@@ -26,16 +28,15 @@ export interface Props {
   }
   const { skipSave } = deserialize<Props>('preferences');
   const { routerOutlet } = deserialize<AppConfig>('app-config');
-  const includesAppURL = urlParam?.includes(window.location.origin)
+  const includesAppURL = urlParam?.includes(baseUrl) ?? false;
 
   try {
-    const responseFromNetwork = await fetch (url);
+    if (url.href.slice(0, url.href.length - 1) !== baseUrl && !skipSave && !includesAppURL) {
-    if (responseFromNetwork && !skipSave && !includesAppURL) {
+      logInfo('adding one to cache', {context: 'cozy-reader', data: url})
-      console.info('[cozy-reader]: adding one to cache', url.pathname)
+      await cache.add(url);
-      await cache.put(url, responseFromNetwork);
     }
   } catch(error) {
-    console.error('[cozy-reader]: ', error)
+      logError('ERR', {context: 'cozy-reader', data: error})
   } 
 
   const cachedRequests = (await cache.keys())
@@ -44,7 +45,7 @@ export interface Props {
       const urlParam = urlObj.searchParams.get('url'); 
 
       return urlObj.search !== ''
-      && !urlParam?.startsWith(window.location.origin)
+      && !urlParam?.startsWith(baseUrl)
       && urlParam !== ''
       && urlParam !== 'null';
     });
@@ -63,9 +64,19 @@ export interface Props {
       let responseText;
 
       const fullResponse = await cache.match(url)
+
+      try {
+        const responseFromNetwork = await fetch(url, {method: 'GET'});
+        if (responseFromNetwork && url.slice(0, url.length - 1) !== baseUrl && !skipSave && !includesAppURL) {
+          logInfo('updating cached', {context: 'cozy-reader', data: url})
+          await cache.put(url, responseFromNetwork);
+        }
+      } catch(error) {
+          logError('failed to update cached', {context: 'cozy-reader', data: {url, error}})
+      } 
+
       fullResponse?.text().then(async data => {
         responseText = data;
-        const { baseUrl } = deserialize<AppConfig>('app-config');
         const cleanedResponse = await cozify(responseText, baseUrl)
         const html = document.createElement('html');
         html.innerHTML = cleanedResponse;
@@ -82,6 +93,7 @@ export interface Props {
           e.preventDefault();
           localStorage.setItem('scrollPosition', window.scrollY.toString());
           scrollTo(0,0);
+          logInfo('using cached response', {context: 'cozy-reader', data: url})
           renderPost(cleanedResponse, url, routerOutlet)
         }
         const item = document.createElement('li');
@@ -105,8 +117,8 @@ export interface Props {
       const fullResponse = await cache.match(url)
       fullResponse?.text().then(async (data) => {
         const responseText = data;
-        const { baseUrl } = deserialize<AppConfig>('app-config');
         const cleanedResponse = await cozify(responseText, baseUrl);
+        logInfo('using cached response', {context: 'cozy-reader', data: url})
         renderPost(cleanedResponse, url, routerOutlet, true);
         if (isHome) {
           const scrollPosition = localStorage.getItem('scrollPosition');

src/pages/index.astro

@@ -11,7 +11,6 @@ export const prerender = false;
 
 const appConfig = {
   routerOutlet: 'router-outlet',
-  baseUrl: Astro.url.origin
 };
 export type AppConfig = typeof appConfig;
 

src/sw.js

@@ -4,20 +4,35 @@
  * @see https://ayco.io/n/@ayco/astro-sw
  */
 const cacheName = `${__prefix ?? 'app'}-v${__version ?? '000'}`
+// const forceLogging = true;
+
+/**
+ * TODO: remove this once astro-sw allows importing utils
+ */
+function logInfo(message, {context, force, data} = {}) {
+    context = context !== ''
+        ? `[${context}]: `
+        : ''
+
+    if (force || isDev) {
+        console.info(`!!! ${context}${message}`, data ?? '');
+    }
+}
+
 
 const addResourcesToCache = async (resources) => {
     const cache = await caches.open(cacheName);
-    console.log('[cozy-sw]: adding resources to cache...', resources)
+    logInfo('adding resources to cache...', { force: forceLogging, context: 'cozy-sw', data: resources })
     await cache.addAll(resources);
 };
 
 const putInCache = async (request, response) => {
     const cache = await caches.open(cacheName);
-    console.log('[cozy-sw]: adding one response to cache...', request.url)
+    logInfo('adding one response to cache...', { force: forceLogging, context: 'cozy-sw', data: request.url })
     // if exists, replace
 
     const keys = await cache.keys();
-    if(keys.includes(request)) {
+    if (keys.includes(request)) {
         cache.delete(request);
     }
 
@@ -35,21 +50,21 @@ const cacheAndRevalidate = async ({ request, preloadResponsePromise, fallbackUrl
         // get network response for revalidation of stale assets
         const responseFromNetwork = await fetch(request.clone());
         if (responseFromNetwork) {
-            console.info('[cozy-sw]: fetched updated assets', responseFromNetwork.url);
+            logInfo('updated cached resource...', { force: forceLogging, context: 'cozy-sw', data: responseFromNetwork.url })
             putInCache(request, responseFromNetwork.clone());
         }
 
         if (responseFromCache) {
-            console.info('[cozy-sw]: using cached response', responseFromCache.url);
+            logInfo('using cached response...', { force: forceLogging, context: 'cozy-sw', data: responseFromCache.url })
             return responseFromCache;
-        } else{
+        } else {
-            console.info('[cozy-sw]: using network response', responseFromNetwork.url);
+            logInfo('using network response...', { force: forceLogging, context: 'cozy-sw', data: responseFromNetwork.url })
             return responseFromNetwork;
         }
-    } catch(error) {
+    } catch (error) {
-        console.info('[cozy-sw]: failed to fetch updated assets', request.url);
+        logInfo('failed to fetch updated resource', { force: forceLogging, context: 'cozy-sw', data: request.url })
         if (responseFromCache) {
-            console.info('[cozy-sw]: using cached response', responseFromCache.url);
+            logInfo('using cached response', { force: forceLogging, context: 'cozy-sw', data: responseFromCache.url })
             return responseFromCache;
         }
     }
@@ -63,18 +78,18 @@ const cacheAndRevalidate = async ({ request, preloadResponsePromise, fallbackUrl
     const preloadResponse = await preloadResponsePromise;
     if (preloadResponse) {
         putInCache(request, preloadResponse.clone());
-        console.info('[cozy-sw]: using preload response', preloadResponse.url);
+        logInfo('using preload response', { force: forceLogging, context: 'cozy-sw', data: preloadResponse.url })
         return preloadResponse;
     }
 
     try {
         // Try to get the resource from the network for 5 seconds
-        const responseFromNetwork = await fetch(request.clone(), {signal: AbortSignal.timeout(5000)});
+        const responseFromNetwork = await fetch(request.clone(), { signal: AbortSignal.timeout(5000) });
         // response may be used only once
         // we need to save clone to put one copy in cache
         // and serve second one
         putInCache(request, responseFromNetwork.clone());
-        console.info('[cozy-sw]: using network response', responseFromNetwork.url);
+        logInfo('using network response', { force: forceLogging, context: 'cozy-sw', data: responseFromNetwork.url })
         return responseFromNetwork;
 
     } catch (error) {
@@ -82,7 +97,7 @@ const cacheAndRevalidate = async ({ request, preloadResponsePromise, fallbackUrl
         // Try the fallback
         const fallbackResponse = await cache.match(fallbackUrl);
         if (fallbackResponse) {
-            console.info('[cozy-sw]: using fallback cached response', fallbackResponse.url);
+            logInfo('using fallback cached response...', { force: forceLogging, context: 'cozy-sw', data: fallbackResponse.url })
             return fallbackResponse;
         }
 
@@ -104,12 +119,12 @@ const enableNavigationPreload = async () => {
 };
 
 self.addEventListener('activate', (event) => {
-    console.log('[cozy-sw]: activating...', event)
+    logInfo('activating service worker...', { force: forceLogging, context: 'cozy-sw' })
     event.waitUntil(enableNavigationPreload());
 });
 
 self.addEventListener('install', (event) => {
-    console.log('[cozy-sw]: installing...', event)
+    logInfo('installing service worker...', { force: forceLogging, context: 'cozy-sw' })
     event.waitUntil(
         addResourcesToCache([
             ...(__assets ?? [])

src/utils/logger.mjs

@@ -0,0 +1,54 @@
+// @ts-check
+
+const isDev = import.meta.env.DEV;
+
+/**
+  * @typedef {{
+ *  force?: true
+ *  context?: string,
+ *  data?: any
+ * }} LogOptions
+ */
+
+
+/**
+ * @param {string} message 
+ * @param {LogOptions} options
+ */
+export function logMessage(message, {context, force, data} = {}) {
+    context = context !== ''
+        ? `[${context}]: `
+        : ''
+
+    if (force || isDev) {
+        console.log(`!!! ${context}${message}`, data ?? '');
+    }
+}
+
+/**
+ * @param {string} message 
+ * @param {LogOptions} options
+ */
+export function logInfo(message, {context, force, data} = {}) {
+    context = context !== ''
+        ? `[${context}]: `
+        : ''
+
+    if (force || isDev) {
+        console.info(`!!! ${context}${message}`, data ?? '');
+    }
+}
+
+/**
+ * @param {string} message 
+ * @param {LogOptions} options
+ */
+export function logError(message, {context, force, data} = {}) {
+    context = context !== ''
+        ? `[${context}]: `
+        : ''
+
+    if (force || isDev) {
+        console.error(`!!! ${context}${message}`, data ?? '');
+    }
+}