From c54005b5bad3bec4aa0513b069daaa121943c58c Mon Sep 17 00:00:00 2001
From: primal <primal@primal.host>
Date: Wed, 28 Jan 2026 21:49:11 -0500
Subject: [PATCH] Upgrade BBC images from 240px to 800px for better quality

BBC CDN supports larger image sizes by changing the URL path.
Upgrade /standard/240/ and /standard/480/ to /standard/800/.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 publisher.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/publisher.go b/publisher.go
index fb02eed..06edec0 100644
--- a/publisher.go
+++ b/publisher.go
@@ -556,7 +556,20 @@ func (p *Publisher) fetchAndUploadImage(session *PDSSession, imageURL string) *B
 	return result.Blob
 }
 
+// upgradeImageURL attempts to get a larger version of known CDN image URLs
+func upgradeImageURL(imageURL string) string {
+	// BBC images: /standard/240/ -> /standard/800/
+	if strings.Contains(imageURL, "ichef.bbci.co.uk") {
+		imageURL = strings.Replace(imageURL, "/standard/240/", "/standard/800/", 1)
+		imageURL = strings.Replace(imageURL, "/standard/480/", "/standard/800/", 1)
+	}
+	return imageURL
+}
+
 func (p *Publisher) fetchAndUploadImageWithDimensions(session *PDSSession, imageURL string) *ImageUploadResult {
+	// Upgrade image URL to larger size if possible
+	imageURL = upgradeImageURL(imageURL)
+
 	// Fetch the image
 	resp, err := p.httpClient.Get(imageURL)
 	if err != nil {