From 2df9390993d99bf11089250edfb88086ec5ee994 Mon Sep 17 00:00:00 2001
From: Asaf Gartner <asaf@handmadedev.org>
Date: Tue, 22 Jun 2021 15:02:47 +0300
Subject: [PATCH] Showcase xml feed

---
 src/templates/src/atom.xml | 22 ++++++++++++++++
 src/templates/types.go     |  1 +
 src/website/feed.go        | 51 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 72 insertions(+), 2 deletions(-)

diff --git a/src/templates/src/atom.xml b/src/templates/src/atom.xml
index e437b78e..460e774e 100644
--- a/src/templates/src/atom.xml
+++ b/src/templates/src/atom.xml
@@ -43,6 +43,28 @@
 		{{ end }}
 	{{ else if .Snippets }}
 		{{ range .Snippets }}
+			<entry>
+				<title>New showcase item by {{ .OwnerName }}</title>
+				<link rel="alternative" type="text/html" href="{{ .Url }}" />
+				<id>{{ .UUID }}</id>
+				<published>{{ rfc3339 .Date }}</published>
+				<author>
+					<name>{{ .OwnerName }}</name>
+					<uri>{{ .OwnerUrl }}</uri>
+				</author>
+				<content type="xhtml">
+					<div xmlns="http://www.w3.org/1999/xhtml">
+						{{ .Description }}
+						{{ if snippetimage . }}
+							<img src="{{ .AssetUrl }}"/>
+						{{ else if snippetvideo . }}
+							<video src="{{ .AssetUrl }}" controls="true"/>
+						{{ else if snippetaudio . }}
+							<audio src="{{ .AssetUrl }}" controls="true"/>
+						{{ end }}
+					</div>
+				</content>
+			</entry>
 		{{ end }}
 	{{ end }}
 </feed>
diff --git a/src/templates/types.go b/src/templates/types.go
index b38af0af..d3209d13 100644
--- a/src/templates/types.go
+++ b/src/templates/types.go
@@ -234,6 +234,7 @@ type TimelineItem struct {
 	Class     string
 	Date      time.Time
 	Url       string
+	UUID      string
 
 	OwnerAvatarUrl string
 	OwnerName      string
diff --git a/src/website/feed.go b/src/website/feed.go
index 30e765a3..0b36cff3 100644
--- a/src/website/feed.go
+++ b/src/website/feed.go
@@ -140,7 +140,7 @@ type AtomFeedData struct {
 	FeedType FeedType
 	Posts    []templates.PostListItem
 	Projects []templates.Project
-	Snippets []int // TODO(asaf): Actually do this
+	Snippets []templates.TimelineItem
 }
 
 func AtomFeed(c *RequestContext) ResponseData {
@@ -248,8 +248,55 @@ func AtomFeed(c *RequestContext) ResponseData {
 				templateProject.Owners = append(templateProject.Owners, templates.UserToTemplate(&owner.User, ""))
 			}
 			c.Perf.EndBlock()
+			updated := time.Now()
+			if len(feedData.Projects) > 0 {
+				updated = feedData.Projects[0].DateApproved
+			}
+			feedData.Updated = updated
 		case "showcase":
-			// TODO(asaf): Implement this
+			feedData.Title = "Showcase | Site-wide | Handmade.Network"
+			feedData.Subtitle = feedData.Title
+			feedData.FeedType = FeedTypeShowcase
+			feedData.FeedID = FeedIDShowcase
+			feedData.AtomFeedUrl = hmnurl.BuildAtomFeedForShowcase()
+			feedData.FeedUrl = hmnurl.BuildShowcase()
+
+			c.Perf.StartBlock("SQL", "Fetch showcase snippets")
+			type snippetQuery struct {
+				Owner          models.User            `db:"owner"`
+				Snippet        models.Snippet         `db:"snippet"`
+				Asset          *models.Asset          `db:"asset"`
+				DiscordMessage *models.DiscordMessage `db:"discord_message"`
+			}
+			snippetQueryResult, err := db.Query(c.Context(), c.Conn, snippetQuery{},
+				`
+				SELECT $columns
+				FROM
+					handmade_snippet AS snippet
+					INNER JOIN auth_user AS owner ON owner.id = snippet.owner_id
+					LEFT JOIN handmade_asset AS asset ON asset.id = snippet.asset_id
+					LEFT JOIN handmade_discordmessage AS discord_message ON discord_message.id = snippet.discord_message_id
+				ORDER BY snippet.when DESC
+				LIMIT $1
+				`,
+				itemsPerFeed,
+			)
+			if err != nil {
+				return ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch snippets"))
+			}
+			snippetQuerySlice := snippetQueryResult.ToSlice()
+			for _, s := range snippetQuerySlice {
+				row := s.(*snippetQuery)
+				timelineItem := SnippetToTimelineItem(&row.Snippet, row.Asset, row.DiscordMessage, &row.Owner, c.Theme)
+				timelineItem.UUID = uuid.NewSHA1(uuid.NameSpaceURL, []byte(timelineItem.Url)).URN()
+				feedData.Snippets = append(feedData.Snippets, timelineItem)
+			}
+			c.Perf.EndBlock()
+			updated := time.Now()
+			if len(feedData.Snippets) > 0 {
+				updated = feedData.Snippets[0].Date
+			}
+			feedData.Updated = updated
 		default:
 			return FourOhFour(c)
 		}