Implement mixed-media tweet support

Fixes #697 #1101

src/views/rss.nimf

@@ -1,29 +1,38 @@
 #? stdtmpl(subsChar = '$', metaChar = '#')
 ## SPDX-License-Identifier: AGPL-3.0-only
-#import strutils, xmltree, strformat, options, unicode
+#import strutils, sequtils, xmltree, strformat, options, unicode
 #import ../types, ../utils, ../formatters, ../prefs
 ## Snowflake ID cutoff for RSS GUID format transition
 ## Corresponds to approximately December 14, 2025 UTC
 #const guidCutoff = 2000000000000000000'i64
 #
 #proc getTitle(tweet: Tweet; retweet: string): string =
-#if tweet.pinned: result = "Pinned: "
-#elif retweet.len > 0: result = &"RT by @{retweet}: "
-#elif tweet.reply.len > 0: result = &"R to @{tweet.reply[0]}: "
+#var prefix = ""
+#if tweet.pinned: prefix = "Pinned: "
+#elif retweet.len > 0: prefix = &"RT by @{retweet}: "
+#elif tweet.reply.len > 0: prefix = &"R to @{tweet.reply[0]}: "
 #end if
 #var text = stripHtml(tweet.text)
 ##if unicode.runeLen(text) > 32:
 ##  text = unicode.runeSubStr(text, 0, 32) & "..."
 ##end if
-#result &= xmltree.escape(text)
-#if result.len > 0: return
+#text = xmltree.escape(text)
+#if text.len > 0:
+#  result = prefix & text
+#  return
 #end if
-#if tweet.photos.len > 0:
-#  result &= "Image"
-#elif tweet.video.isSome:
-#  result &= "Video"
-#elif tweet.gif.isSome:
-#  result &= "Gif"
+#if tweet.media.len > 0:
+#  result = prefix
+#  let firstKind = tweet.media[0].kind
+#  if tweet.media.anyIt(it.kind != firstKind):
+#    result &= "Media"
+#  else:
+#    case firstKind
+#    of photoMedia: result &= "Image"
+#    of videoMedia: result &= "Video"
+#    of gifMedia:   result &= "Gif"
+#    end case
+#  end if
 #end if
 #end proc
 #
@@ -31,6 +40,26 @@
 Twitter feed for: ${desc}. Generated by ${getUrlPrefix(cfg)}
 #end proc
 #
+#proc renderRssMedia(media: Media; tweet: Tweet; urlPrefix: string): string =
+#case media.kind
+#of photoMedia:
+#  let photo = media.photo
+<img src="${urlPrefix}${getPicUrl(photo.url)}" style="max-width:250px;" />
+#of videoMedia:
+#  let video = media.video
+<a href="${urlPrefix}${tweet.getLink}">
+<br>Video<br>
+  <img src="${urlPrefix}${getPicUrl(video.thumb)}" style="max-width:250px;" />
+</a>
+#of gifMedia:
+#  let gif = media.gif
+#  let thumb = &"{urlPrefix}{getPicUrl(gif.thumb)}"
+#  let url = &"{urlPrefix}{getPicUrl(gif.url)}"
+<video poster="${thumb}" autoplay muted loop style="max-width:250px;">
+  <source src="${url}" type="video/mp4"></video>
+#end case
+#end proc
+#
 #proc getTweetsWithPinned(profile: Profile): seq[Tweets] =
 #result = profile.tweets.content
 #if profile.pinned.isSome and result.len > 0:
@@ -54,20 +83,10 @@ Twitter feed for: ${desc}. Generated by ${getUrlPrefix(cfg)}
 #let urlPrefix = getUrlPrefix(cfg)
 #let text = replaceUrls(tweet.text, prefs, absolute=urlPrefix)
 <p>${text.replace("\n", "<br>\n")}</p>
-#if tweet.photos.len > 0:
-#  for photo in tweet.photos:
-<img src="${urlPrefix}${getPicUrl(photo.url)}" style="max-width:250px;" />
+#if tweet.media.len > 0:
+#  for media in tweet.media:
+${renderRssMedia(media, tweet, urlPrefix)}
 #  end for
-#elif tweet.video.isSome:
-<a href="${urlPrefix}${tweet.getLink}">
-<br>Video<br>
-  <img src="${urlPrefix}${getPicUrl(get(tweet.video).thumb)}" style="max-width:250px;" />
-</a>
-#elif tweet.gif.isSome:
-#  let thumb = &"{urlPrefix}{getPicUrl(get(tweet.gif).thumb)}"
-#  let url = &"{urlPrefix}{getPicUrl(get(tweet.gif).url)}"
-<video poster="${thumb}" autoplay muted loop style="max-width:250px;">
-  <source src="${url}" type="video/mp4"></video>
 #elif tweet.card.isSome:
 #  let card = tweet.card.get()
 #  if card.image.len > 0: