From 9a587e4391bdd07a4b09f4796bd0d308c88186ac Mon Sep 17 00:00:00 2001
From: Dakedres <ramondolive@gmail.com>
Date: Wed, 10 Apr 2024 00:48:10 -0600
Subject: [PATCH] Caching actually works

---
 lib.js | 56 +++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 23 deletions(-)

diff --git a/lib.js b/lib.js
index a2e5782..4f3294c 100755
--- a/lib.js
+++ b/lib.js
@@ -131,6 +131,7 @@ export const delayedFetch = async (url, options, courtesyWait = 5 * 1000) => {
 
   waitingList.set(domain, waitFor + courtesyWait)
   if(waitFor !== 0) {
+    console.log(`Waiting ${waitFor}ms to download ${url}`)
     await sleep(waitFor)
   }
 
@@ -155,8 +156,8 @@ export const retryDelayedFetch = async (url, options, courtesyWait, retryAttempt
 export const getCacheFilename = (source) =>
   source.name + '.xml'
 
-export const getCachePath = (source, { directory }) =>
-  Path.join(directory, getCacheFilename(source))
+export const getCachePath = (source, cache) =>
+  Path.join(cache.directory, getCacheFilename(source))
 
 export const cacheSource = (source, cache) =>
   write(getCachePath(source, cache), renderCache(source, cache))
@@ -180,19 +181,21 @@ export const openCache = async (source, cache) => {
   if(exists)
     rss = await FS.readFile(path, { encoding: 'utf8' })
 
-  if(exists & rss) {
+  if(exists && rss) {
+    // if(source.user == 'nanoraptor') {
+    //   source.asdf = 'b'
+    //   source.cache.asdf = 'b'
+    // }
     let channel = createChannel(rss)
-    let date = readPubDate(channel.querySelector('pubDate'))
-    let link = new URL(channel.querySelector('link').textContent)
 
     source.cache = {
       channel,
-      date,
-      link
+      date: readPubDate(channel.querySelector('pubDate')),
+      link: new URL(channel.querySelector('link').textContent),
     }
   } else {
     source.cache = {
-      date: new Date(0),
+      date: new Date(0)
     }
 
     if(source.hostname)
@@ -207,6 +210,7 @@ export const openCache = async (source, cache) => {
 export const buildCacheLink = source =>
   new URL('https://' + source.hostname)
 
+// .replaceAll(/\n\s*/g, '')
 export const renderCache = (source, cache) => `\
 <?xml version="1.0" encoding="UTF-8" ?>
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
@@ -240,14 +244,18 @@ export const createPosts = async (channel, source, fromDate, reducerCallback) =>
   let promises = []
 
   for(let item of items) {
+    let post = createPost(item, source)
+
+    if(post.date <= fromDate)
+      continue
+
     source.items.push(item)
-    let promise = createPost(item, source, reducerCallback)
+
+    let promise = reducerCallback(post)
       .then(post => {
-        if(post && post.date > fromDate) {
+        if(post) {
           source.posts.push(post)
         }
-
-        return post
       })
 
     promises.push(promise)
@@ -257,7 +265,7 @@ export const createPosts = async (channel, source, fromDate, reducerCallback) =>
   return source
 }
 
-export const createPost = async (item, source, reducerCallback) => {
+export const createPost = (item, source) => {
   let description = new JSDOM(item.querySelector('description').textContent).window.document
   let date = readPubDate(item.querySelector('pubDate'))
   let link = item.querySelector('link').textContent
@@ -275,7 +283,7 @@ export const createPost = async (item, source, reducerCallback) => {
     occurances: []
   }
   
-  return await reducerCallback(post)
+  return post
 }
 
 export const processCategories = (post) => {
@@ -289,7 +297,7 @@ export const processCategories = (post) => {
   return post
 }
 
-export const extractImages = (post, cache = true) => {
+export const extractImages = (post) => {
   let images = post.description.querySelectorAll('img')
 
   if(images) {
@@ -519,7 +527,7 @@ export const downloadImage = async (url, basename, { courtesyWait, retryAttempts
     let extension = imageExtensions[mimetype]
     
     if(typeof extension !== 'string') {
-      console.error(`Unknown image mimetype for ${url}: ${mimetype}. Cannot download`)
+      console.error(`Unknown mimetype for ${url}: ${mimetype}. Cannot download`)
       return url
     }
 
@@ -612,12 +620,12 @@ export const fetchChannelFromInstances = async (source) => {
   return channel
 }
 
-export const populateSource = async (channel, source, postReducerCallback, useCache = true) => {
+export const populateSource = async (channel, source, postReducerCallback, cache) => {
   let fromDate = 0
   source.items = []
   source.posts = []
 
-  if(useCache) {
+  if(cache.enabled) {
     fromDate = source.latestPostDate
 
     if(source.cache.channel)
@@ -657,14 +665,16 @@ export const writeView = (sources, feeds, view) => {
 }
 
 export const createSource = async (source, getChannel, postReducerCallback, cache) => {
-  source = await openCache(source, cache)
-  source = await populateSource(await getChannel(source), source, postReducerCallback, cache.populate)
+  if(cache.enabled)
+    source = await openCache(source, cache)
+  source = await populateSource(await getChannel(source), source, postReducerCallback, cache)
 
-  cache.batch.add(cacheSource(source, cache))
+  if(cache.enabled)
+    cache.batch.add(cacheSource(source, cache))
   return source
 }
 
-export const createSourceOptions = (options) => {
+export const createSourceOptions = (options, view) => {
   if(isUnset(options.courtesyWait))
     options.courtesyWait = 1000
 
@@ -817,4 +827,4 @@ export const mastodon = {
       return post
     }
   }
-}
+}
\ No newline at end of file