Add support for live events, kind:30311

2025-12-17 14:24:27 +01:00 · 2023-11-06 23:28:20 +01:00
parent 6d6defa419
commit b5a4cfdfdb
5 changed files with 224 additions and 0 deletions
--- a/data.go
+++ b/data.go
@@ -87,6 +87,7 @@ type Data struct {
 	content             string
 	alt                 string
 	kind1063Metadata    *Kind1063Metadata
+	kind30311Metadata   *Kind30311Metadata
 }

 type Kind1063Metadata struct {
@@ -104,6 +105,16 @@ type Kind1063Metadata struct {
 	Thumb     string
 }

+type Kind30311Metadata struct {
+	Title    string
+	Summary  string
+	Image    string
+	Status   string
+	Host     sdk.ProfileMetadata
+	HostNpub string
+	Tags     []string
+}
+
 func (fm Kind1063Metadata) IsVideo() bool { return strings.Split(fm.M, "/")[0] == "video" }
 func (fm Kind1063Metadata) IsImage() bool { return strings.Split(fm.M, "/")[0] == "image" }
 func (fm Kind1063Metadata) DisplayImage() string {
@@ -246,6 +257,35 @@ func grabData(ctx context.Context, code string, isProfileSitemap bool) (*Data, e
 		if tag := event.Tags.GetFirst([]string{"summary", ""}); tag != nil {
 			data.kind1063Metadata.Summary = (*tag)[1]
 		}
+	case 30311:
+		data.templateId = LiveEvent
+		d := event.Tags.GetFirst([]string{"d", ""})
+		data.naddr, _ = nip19.EncodeEntity(event.PubKey, event.Kind, d.Value(), data.relays)
+		data.kind30311Metadata = &Kind30311Metadata{}
+
+		if tag := event.Tags.GetFirst([]string{"title", ""}); tag != nil {
+			data.kind30311Metadata.Title = (*tag)[1]
+		}
+		if tag := event.Tags.GetFirst([]string{"summary", ""}); tag != nil {
+			data.kind30311Metadata.Summary = (*tag)[1]
+		}
+		if tag := event.Tags.GetFirst([]string{"image", ""}); tag != nil {
+			data.kind30311Metadata.Image = (*tag)[1]
+		}
+		if tag := event.Tags.GetFirst([]string{"status", ""}); tag != nil {
+			data.kind30311Metadata.Status = (*tag)[1]
+		}
+		pTags := event.Tags.GetAll([]string{"p", ""})
+		for _, p := range pTags {
+			if p[3] == "host" {
+				data.kind30311Metadata.Host = sdk.FetchProfileMetadata(ctx, pool, p[1], data.relays...)
+				data.kind30311Metadata.HostNpub = data.kind30311Metadata.Host.Npub()
+			}
+		}
+		tTags := event.Tags.GetAll([]string{"t", ""})
+		for _, t := range tTags {
+			data.kind30311Metadata.Tags = append(data.kind30311Metadata.Tags, t[1])
+		}
 	default:
 		data.templateId = Other
 		if event.Kind >= 30000 && event.Kind < 40000 {
--- a/pages.go
+++ b/pages.go
@@ -18,6 +18,7 @@ const (
 	LongForm
 	TelegramInstantView
 	FileMetadata
+	LiveEvent
 	Other
 )

@@ -96,6 +97,7 @@ type DetailsPartial struct {

 	// kind-specific stuff
 	FileMetadata *Kind1063Metadata
+	LiveEvent    *Kind30311Metadata
 }

 func (*DetailsPartial) TemplateText() string { return tmplDetails }
@@ -295,6 +297,37 @@ type FileMetadataPage struct {

 func (*FileMetadataPage) TemplateText() string { return tmplFileMetadata }

+var (
+	//go:embed templates/live_event.html
+	tmplLiveEvent     string
+	LiveEventTemplate = tmpl.MustCompile(&LiveEventPage{})
+)
+
+type LiveEventPage struct {
+	OpenGraphPartial  `tmpl:"opengraph"`
+	HeadCommonPartial `tmpl:"head_common"`
+	TopPartial        `tmpl:"top"`
+	DetailsPartial    `tmpl:"details"`
+	ClientsPartial    `tmpl:"clients"`
+	FooterPartial     `tmpl:"footer"`
+
+	Content          template.HTML
+	CreatedAt        string
+	Metadata         *sdk.ProfileMetadata
+	Npub             string
+	NpubShort        string
+	ParentLink       template.HTML
+	SeenOn           []string
+	Style            Style
+	Subject          string
+	TitleizedContent string
+	Alt              string
+
+	LiveEvent Kind30311Metadata
+}
+
+func (*LiveEventPage) TemplateText() string { return tmplLiveEvent }
+
 var (
 	//go:embed templates/relay.html
 	tmplRelay     string
--- a/render_event.go
+++ b/render_event.go
@@ -245,6 +245,7 @@ func renderEvent(w http.ResponseWriter, r *http.Request) {

 		// kind-specific stuff
 		FileMetadata: data.kind1063Metadata,
+		LiveEvent:    data.kind30311Metadata,
 	}

 	opengraph := OpenGraphPartial{
@@ -330,6 +331,33 @@ func renderEvent(w http.ResponseWriter, r *http.Request) {
 			IsImage:      data.kind1063Metadata.IsImage(),
 			IsVideo:      data.kind1063Metadata.IsVideo(),
 		})
+	case LiveEvent:
+		opengraph.Image = data.kind30311Metadata.Image
+
+		err = LiveEventTemplate.Render(w, &LiveEventPage{
+			OpenGraphPartial: opengraph,
+			HeadCommonPartial: HeadCommonPartial{
+				IsProfile:          false,
+				TailwindDebugStuff: tailwindDebugStuff,
+				NaddrNaked:         data.naddrNaked,
+				NeventNaked:        data.neventNaked,
+			},
+			DetailsPartial: detailsData,
+			ClientsPartial: ClientsPartial{
+				Clients: generateClientList(style, data.naddr, data.event),
+			},
+
+			CreatedAt:        data.createdAt,
+			Metadata:         data.metadata,
+			Npub:             data.npub,
+			NpubShort:        data.npubShort,
+			Style:            style,
+			Subject:          subject,
+			TitleizedContent: titleizedContent,
+			Alt:              data.alt,
+
+			LiveEvent: *data.kind30311Metadata,
+		})
 	case Other:
 		detailsData.HideDetails = false // always open this since we know nothing else about the event

--- a/templates/live_event.html
+++ b/templates/live_event.html
@@ -0,0 +1,117 @@
+<!doctype html>
+<html class="theme--default text-lg font-light print:text-base sm:text-xl">
+  <meta charset="UTF-8" />
+  <head>
+    <title>Stream: {{.LiveEvent.Title}} by {{ .LiveEvent.Host.Name }}</title>
+    {{template "opengraph" .OpenGraphPartial}}
+    <!---->
+    {{template "head_common" .HeadCommonPartial}}
+  </head>
+
+  <body
+    class="mb-16 bg-white text-gray-600 dark:bg-neutral-900 dark:text-neutral-50 print:text-black"
+  >
+    {{template "top" .}}
+
+    <div class="mx-auto px-4 sm:flex sm:items-center sm:justify-center sm:px-0">
+      <div
+        class="w-full max-w-screen-2xl justify-between gap-10 overflow-visible print:w-full sm:flex sm:w-11/12 sm:px-4 md:w-10/12 lg:w-9/12 lg:gap-48vw"
+      >
+        <div class="w-full break-words print:w-full">
+          <header class="mb-4 max-w-full">
+            <a class="flex flex-wrap items-center" href="/{{.Npub}}">
+              <div
+                class="print:basis-1-12 imgclip mr-2 max-w-full basis-1/6 overflow-hidden sm:mr-4"
+              >
+                <img class="block h-auto w-full" src="{{.Metadata.Picture}}" />
+              </div>
+              <div class="block print:text-base sm:grow">
+                <div class="text-sm leading-4 sm:text-2xl">
+                  {{.Metadata.Name}}
+                  <!---->
+                  {{if not (eq .Metadata.Name .Metadata.DisplayName)}}
+                  <span class="text-sm text-stone-400 sm:text-xl"
+                    >{{.Metadata.DisplayName}}</span
+                  >
+                  {{end}}
+                </div>
+                <div class="text-sm leading-4 text-stone-400 sm:text-base">
+                  {{.NpubShort}}
+                </div>
+              </div>
+            </a>
+          </header>
+          <div class="w-full text-right text-sm text-stone-400">
+            {{.CreatedAt}}
+          </div>
+
+          <div class="w-full text-right text-sm text-stone-400">
+            {{ if not (eq "" .ParentLink) }} in reply to
+            <span class="text-strongpink">{{ .ParentLink }}</span> {{ end }}
+          </div>
+
+          <div
+            class="-ml-4 mb-6 h-1.5 w-1/3 bg-zinc-100 dark:bg-zinc-700 sm:-ml-2.5"
+          ></div>
+
+          <article
+            class="prose-cite:text-sm prose mb-6 max-w-full leading-5 dark:prose-invert prose-headings:font-light prose-p:m-0 prose-p:mb-2 prose-blockquote:mx-0 prose-blockquote:my-8 prose-blockquote:border-l-05rem prose-blockquote:border-solid prose-blockquote:border-l-gray-100 prose-blockquote:py-2 prose-blockquote:pl-4 prose-blockquote:pr-0 prose-ol:m-0 prose-ol:p-0 prose-ol:pl-4 prose-ul:m-0 prose-ul:p-0 prose-ul:pl-4 prose-li:mb-2 dark:prose-blockquote:border-l-zinc-800 sm:prose-a:text-justify"
+          >
+            <h1 class="text-2xl">
+              {{.LiveEvent.Title}} {{ if (eq "ended" .LiveEvent.Status)}}
+              <span
+                class="ml-4 rounded bg-neutral-400 px-4 py-1 text-base text-white dark:bg-neutral-700"
+                >Ended</span
+              >
+              {{ else if (eq "live" .LiveEvent.Status)}}
+              <span
+                class="ml-4 rounded bg-strongpink px-4 py-1 text-base text-white"
+                >Live now!</span
+              >
+              {{ end }}
+            </h1>
+            <div class="mb-4">
+              Streaming hosted by
+              <a href="/{{ .LiveEvent.HostNpub }}"
+                >{{ .LiveEvent.Host.Name }}</a
+              >
+            </div>
+            <!-- main content -->
+            <div class="mb-4">
+              {{ range .LiveEvent.Tags }}
+              <span
+                class="mr-2 rounded bg-neutral-200 px-2 dark:bg-neutral-700 dark:text-white"
+                >{{ . }}</span
+              >
+              {{ end }}
+            </div>
+            {{ if (not (eq "" .LiveEvent.Summary))}}
+            <div>{{ .LiveEvent.Summary }}</div>
+            {{ end }} {{ if (not (eq "" .LiveEvent.Image))}}
+            <img
+              src="{{ .LiveEvent.Image }}"
+              alt="{{ .Alt }}"
+              _="on load
+            repeat until '{{ .LiveEvent.Status }}' == 'ended'
+              set @src to '{{ .LiveEvent.Image }}'
+              wait 5s
+            end
+            "
+            />
+            {{ end }}
+          </article>
+
+          {{template "details" .DetailsPartial}}
+
+          <div
+            class="-ml-4 mb-6 h-1.5 w-1/3 bg-zinc-100 dark:bg-zinc-700 sm:-ml-2.5"
+          ></div>
+        </div>
+
+        {{template "clients" .ClientsPartial}}
+      </div>
+    </div>
+
+    {{template "footer" .}}
+  </body>
+</html>
--- a/utils.go
+++ b/utils.go
@@ -163,6 +163,12 @@ func generateClientList(style Style, code string, event *nostr.Event) []ClientRe
 			{ID: "snort", Name: "Snort", URL: template.URL("https://snort.social/p/" + code)},
 			{ID: "coracle", Name: "Coracle", URL: template.URL("https://coracle.social/" + code)},
 		}
+	} else if event.Kind == 30311 {
+		return []ClientReference{
+			{ID: "native", Name: "your native client", URL: template.URL("nostr:" + code)},
+			{ID: "zap.stream", Name: "zap.stream", URL: template.URL("https://zap.stream/" + code)},
+			{ID: "nostrudel", Name: "Nostrudel", URL: template.URL("https://nostrudel.ninja/#/streams/" + code)},
+		}
 	}
 	return nil
 }