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34 lines
1.2 KiB
Elixir
34 lines
1.2 KiB
Elixir
defimpl Mobilizon.Service.Metadata, for: Mobilizon.Events.Event do
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alias Phoenix.HTML
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alias Phoenix.HTML.Tag
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alias Mobilizon.Events.Event
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alias MobilizonWeb.JsonLD.ObjectView
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def build_tags(%Event{} = event) do
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event
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|> do_build_tags()
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|> Enum.map(&HTML.safe_to_string/1)
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|> Enum.reduce("", fn tag, acc -> acc <> tag end)
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|> Kernel.<>(build_json_ld_schema(event))
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end
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# Build OpenGraph & Twitter Tags
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defp do_build_tags(%Event{} = event) do
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[
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Tag.tag(:meta, property: "og:title", content: event.title),
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Tag.tag(:meta, property: "og:url", content: event.url),
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Tag.tag(:meta, property: "og:description", content: event.description),
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Tag.tag(:meta, property: "og:type", content: "website"),
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Tag.tag(:meta, property: "og:image", content: event.thumbnail),
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Tag.tag(:meta, property: "og:image", content: event.large_image),
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Tag.tag(:meta, property: "twitter:card", content: "summary_large_image")
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]
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end
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# Insert JSON-LD schema by hand because Tag.content_tag wants to escape it
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defp build_json_ld_schema(%Event{} = event) do
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"<script type=\"application\/ld+json\">" <>
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(ObjectView.render("event.json", %{event: event})
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|> Jason.encode!()) <> "</script>"
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end
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end
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