From d6d75eff3782e4f7a5cef509f087197823793c35 Mon Sep 17 00:00:00 2001
From: Atridad Lahiji <me@atri.dad>
Date: Sun, 21 Dec 2025 01:45:28 -0700
Subject: [PATCH] Fixed RSS date/time

---
 .env.example                 |  3 +++
 .github/workflows/deploy.yml |  2 ++
 Dockerfile                   | 12 +++---------
 docker-compose.yml           |  1 +
 src/pages/rss.xml.js         | 34 +++++++++++++++++++++++++++++++++-
 5 files changed, 42 insertions(+), 10 deletions(-)
 create mode 100644 .env.example

diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..8407751
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+# RSS Feed Configuration
+# Will default to GMT
+PUBLIC_RSS_TIMEZONE=America/Edmonton
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index abea909..d67040d 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -30,6 +30,8 @@ jobs:
           context: .
           platforms: linux/amd64
           push: true
+          build-args: |
+            PUBLIC_RSS_TIMEZONE=${{ vars.PUBLIC_RSS_TIMEZONE }}
           tags: |
             ${{ secrets.REPO_HOST }}/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.sha }}
             ${{ secrets.REPO_HOST }}/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest
diff --git a/Dockerfile b/Dockerfile
index 3475f79..8ec9c7a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,35 +46,29 @@ RUN --mount=type=cache,id=pnpm,target=/.pnpm-store \
 
 FROM build-deps AS builder
 
-# Copy source code
+ARG PUBLIC_RSS_TIMEZONE
+ENV PUBLIC_RSS_TIMEZONE=${PUBLIC_RSS_TIMEZONE}
+
 COPY . .
 
-# Build the application
 RUN pnpm run build
 
 FROM node:24-alpine AS runtime
 
-# Install pnpm for runtime
 RUN npm install -g pnpm
 
 WORKDIR /app
 
-# Copy built application
 COPY --from=builder /app/dist ./dist
 
-# Copy production dependencies
 COPY --from=deps /app/node_modules ./node_modules
 
-# Copy package.json for any runtime needs
 COPY package.json ./
 
-# Set environment variables
 ENV HOST=0.0.0.0 \
     PORT=4321 \
     NODE_ENV=production
 
-# Expose port
 EXPOSE 4321
 
-# Start the application
 CMD ["node", "./dist/server/entry.mjs"]
diff --git a/docker-compose.yml b/docker-compose.yml
index 438bdf1..b75f4fd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,4 +5,5 @@ services:
       - "${APP_PORT}:4321"
     environment:
       NODE_ENV: production
+      PUBLIC_RSS_TIMEZONE: ${PUBLIC_RSS_TIMEZONE:-}
     restart: unless-stopped
diff --git a/src/pages/rss.xml.js b/src/pages/rss.xml.js
index 6bd68aa..1a29fe6 100644
--- a/src/pages/rss.xml.js
+++ b/src/pages/rss.xml.js
@@ -1,6 +1,38 @@
 import rss from '@astrojs/rss';
 import { getCollection } from 'astro:content';
 
+function formatPubDate(date) {
+  const timezone = process.env.PUBLIC_RSS_TIMEZONE
+    ? process.env.PUBLIC_RSS_TIMEZONE
+    : import.meta.env.PUBLIC_RSS_TIMEZONE;
+  
+  if (!timezone) {
+    return date;
+  }
+  
+  try {
+    const year = date.getUTCFullYear();
+    const month = String(date.getUTCMonth() + 1).padStart(2, '0');
+    const day = String(date.getUTCDate()).padStart(2, '0');
+    
+    const formatter = new Intl.DateTimeFormat('en-US', {
+      timeZone: timezone,
+      timeZoneName: 'longOffset',
+    });
+
+    const parts = formatter.formatToParts(date);
+    const offsetPart = parts.find(p => p.type === 'timeZoneName');
+    const offset = offsetPart ? offsetPart.value.replace('GMT', '') : '+00:00';
+
+    const dateStr = `${year}-${month}-${day}T00:00:00${offset}`;
+    
+    return new Date(dateStr);
+  } catch (e) {
+    console.warn(`Invalid timezone "${timezone}":`, e.message);
+    return date;
+  }
+}
+
 export async function GET(context) {
   const posts = await getCollection('posts');
   
@@ -10,7 +42,7 @@ export async function GET(context) {
     site: context.site,
     items: posts.map((post) => ({
       title: post.data.title,
-      pubDate: post.data.pubDate,
+      pubDate: formatPubDate(post.data.pubDate),
       description: post.data.description || '',
       link: `/post/${post.slug}/`,
     })),