refactor: move pure post-editor logic to BDS.UI.PostEditor for TUI reuse (issue #26, phase 3)

This commit is contained in:
2026-07-14 19:41:43 +02:00
parent 16f45d77b2
commit 3a8fafd2fd
9 changed files with 198 additions and 264 deletions

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defmodule BDS.UI.PostEditor.Metadata do
@moduledoc false
import Ecto.Query
alias BDS.{I18n, Media, Metadata, PostLinks, Posts, Preview, Repo, Templates}
alias BDS.Media.Media, as: MediaRecord
alias BDS.Posts.{Post, PostMedia}
use Gettext, backend: BDS.Gettext
@spec project_metadata(term()) :: term()
def project_metadata(nil), do: %{main_language: "en", blog_languages: []}
def project_metadata(project_id) do
{:ok, metadata} = Metadata.get_project_metadata(project_id)
metadata
rescue
_error -> %{main_language: "en", blog_languages: []}
end
@spec canonical_language(term(), term()) :: term()
def canonical_language(post, metadata) do
BDS.UI.PostEditor.Draft.normalize_language(
post.language,
metadata.main_language || "en"
)
end
@spec translations(term()) :: term()
def translations(post_id) do
{:ok, translations} = Posts.list_post_translations(post_id)
Map.new(translations, fn translation -> {translation.language, translation} end)
end
@spec languages(term()) :: term()
def languages(metadata) do
(([metadata.main_language || "en"] ++ (metadata.blog_languages || [])) ++
Enum.map(I18n.supported_languages(), & &1.code))
|> Enum.reject(&is_nil/1)
|> Enum.uniq()
end
@spec template_options(term()) :: term()
def template_options(project_id) do
Repo.all(
from template in Templates.Template,
where: template.project_id == ^project_id,
order_by: [asc: template.title, asc: template.slug],
select: %{
slug: template.slug,
title: fragment("COALESCE(?, ?)", template.title, template.slug)
}
)
rescue
_error -> []
end
@spec linked_media(term()) :: term()
def linked_media(post_id) do
rows =
Repo.all(
from pm in PostMedia,
where: pm.post_id == ^post_id,
order_by: [asc: pm.sort_order, asc: pm.media_id],
select: {pm.media_id, pm.sort_order}
)
Enum.map(rows, fn {media_id, sort_order} ->
case Media.get_media(media_id) do
%MediaRecord{} = media ->
%{
media_id: media.id,
has_thumbnail: String.starts_with?(to_string(media.mime_type || ""), "image/"),
name: media.title || media.original_name || media.id,
sort_order: sort_order || 0
}
_other ->
nil
end
end)
|> Enum.reject(&is_nil/1)
rescue
_error -> []
end
@spec post_links(term()) :: term()
def post_links(post_id) do
%{
backlinks: related_posts(PostLinks.list_incoming_links(post_id), :source_post_id),
outlinks: related_posts(PostLinks.list_outgoing_links(post_id), :target_post_id)
}
end
defp related_posts(links, key) do
Enum.map(links, fn link ->
case Posts.get_post(Map.fetch!(link, key)) do
%Post{} = post ->
%{
id: post.id,
title: post.title || post.slug || post.id,
text: link.link_text || post.slug || post.id
}
_other ->
nil
end
end)
|> Enum.reject(&is_nil/1)
end
@spec translation_flags(term(), term(), term(), term()) :: term()
def translation_flags(post, canonical_language, active_language, translations) do
canonical = %{
language: canonical_language,
flag: I18n.flag(canonical_language),
status: Atom.to_string(post.status || :draft),
active: active_language == canonical_language,
label: canonical_language
}
others =
translations
|> Map.values()
|> Enum.sort_by(& &1.language)
|> Enum.map(fn translation ->
%{
language: translation.language,
flag: I18n.flag(translation.language),
status: Atom.to_string(translation.status || :draft),
active: active_language == translation.language,
label: translation.language
}
end)
[canonical | others]
end
@spec footer(term(), term(), term(), term()) :: term()
def footer(post, translation, active_language, canonical_language) do
if active_language == canonical_language do
%{
created_at: format_timestamp(post.created_at),
updated_at: format_timestamp(post.updated_at),
published_at: format_timestamp(post.published_at)
}
else
%{
created_at: format_timestamp((translation && translation.created_at) || post.created_at),
updated_at: format_timestamp((translation && translation.updated_at) || post.updated_at),
published_at: format_timestamp(translation && translation.published_at)
}
end
end
defp format_timestamp(nil), do: ""
defp format_timestamp(timestamp) do
timestamp
|> DateTime.from_unix!(:millisecond)
|> Calendar.strftime("%x")
end
@spec display_title(term(), term(), term()) :: term()
def display_title(title, slug, fallback_id) do
blank_to_nil(title) || blank_to_nil(slug) || fallback_id || dgettext("ui", "Untitled")
end
@spec gallery_count(term()) :: term()
def gallery_count(form) do
content = form |> Map.get("content", "") |> to_string()
image_count =
content
|> then(&Regex.scan(~r/!\[[^\]]*\]\([^\)]+\)/, &1))
|> length()
gallery_macro_count =
content
|> then(&Regex.scan(~r/\[\[gallery\]\]/i, &1))
|> length()
max(image_count, gallery_macro_count)
end
@spec preview_url(term(), term(), term(), term()) :: term()
def preview_url(_post, _active_language, _canonical_language, mode) when mode != :preview,
do: nil
@spec preview_url(term(), term(), term(), term()) :: term()
def preview_url(%Post{} = post, active_language, canonical_language, :preview) do
query =
%{}
|> maybe_put_query("draft", "true")
|> maybe_put_query("post_id", post.id)
|> maybe_put_query("lang", active_language != canonical_language && active_language)
Preview.base_url() <>
canonical_preview_path(post.created_at, post.slug) <> "?" <> URI.encode_query(query)
end
defp canonical_preview_path(created_at_ms, slug) do
datetime = DateTime.from_unix!(created_at_ms, :millisecond)
"/#{datetime.year}/#{BDS.Strings.pad2(datetime.month)}/#{BDS.Strings.pad2(datetime.day)}/#{slug || ""}"
end
defp maybe_put_query(query, _key, false), do: query
defp maybe_put_query(query, _key, nil), do: query
defp maybe_put_query(query, key, value), do: Map.put(query, key, value)
@spec truthy?(term()) :: boolean()
def truthy?(value), do: BDS.Values.truthy?(value)
@spec blank?(term()) :: term()
def blank?(value), do: blank_to_nil(value) == nil
@spec blank_to_nil(term()) :: term()
def blank_to_nil(value) do
value
|> to_string()
|> String.trim()
|> case do
"" -> nil
trimmed -> trimmed
end
end
end