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Unify generation render fallbacks

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This commit is contained in:
Chili Palmer
2026-06-21 13:17:44 +02:00
parent ccfaa4afe6
commit 66c24b565f
2 changed files with 53 additions and 58 deletions
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110
lib/bds/generation/renderers.ex
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@@ -47,25 +47,7 @@ defmodule BDS.Generation.Renderers do
@spec render_archive_page(map(), String.t(), [map()], String.t() | nil, String.t(), map()) ::
String.t()
def render_archive_page(plan, title, posts, language, kind, pagination) do
fallback = fn ->
items =
posts
|> Enum.map(fn post -> ["<li>", post.title, "</li>"] end)
|> IO.iodata_to_binary()
[
"<html><body data-kind=\"",
kind,
"\" data-language=\"",
to_string(language),
"\"><h1>",
title,
"</h1><ul>",
items,
"</ul></body></html>"
]
|> IO.iodata_to_binary()
end
fallback = fn -> render_inline_list_page(title, posts, language, kind) end
render_list_output(
plan,
@@ -92,23 +74,7 @@ defmodule BDS.Generation.Renderers do
@spec render_date_archive_page(map(), String.t(), map(), [map()], String.t() | nil, map()) ::
String.t()
def render_date_archive_page(plan, label, archive_context, posts, language, pagination) do
fallback = fn ->
items =
posts
|> Enum.map(fn post -> ["<li>", post.title, "</li>"] end)
|> IO.iodata_to_binary()
[
"<html><body data-kind=\"date\" data-language=\"",
to_string(language),
"\"><h1>",
label,
"</h1><ul>",
items,
"</ul></body></html>"
]
|> IO.iodata_to_binary()
end
fallback = fn -> render_inline_list_page(label, posts, language, "date") end
render_list_output(
plan,
@@ -124,10 +90,7 @@ defmodule BDS.Generation.Renderers do
@doc "Try the project's post template; on error, fall back to the inline `fallback` thunk."
@spec render_post_output(String.t(), String.t() | nil, map(), (-> String.t())) :: String.t()
def render_post_output(project_id, template_slug, assigns, fallback) do
case Rendering.render_post_page(project_id, template_slug, assigns) do
{:ok, rendered} -> rendered
{:error, _reason} -> fallback.()
end
render_with_fallback(fn -> Rendering.render_post_page(project_id, template_slug, assigns) end, fallback)
end
@doc "Render a list/archive page through the project template, falling back to inline."
@@ -151,30 +114,34 @@ defmodule BDS.Generation.Renderers do
fallback
)
when is_binary(project_id) do
case Rendering.render_list_page(project_id, %{
language: language,
language_prefix: Paths.language_prefix(language, main_language),
page_title: page_title,
posts: posts,
archive_context: archive_context,
pagination: pagination
}) do
{:ok, rendered} -> rendered
{:error, _reason} -> fallback.()
end
render_with_fallback(
fn ->
Rendering.render_list_page(project_id, %{
language: language,
language_prefix: Paths.language_prefix(language, main_language),
page_title: page_title,
posts: posts,
archive_context: archive_context,
pagination: pagination
})
end,
fallback
)
end
@doc "Render the project's 404 page via its template, falling back to a static page."
@spec render_not_found_output(map(), String.t() | nil) :: String.t()
def render_not_found_output(%{project_id: project_id, language: main_language}, language)
when is_binary(project_id) do
case Rendering.render_not_found_page(project_id, %{
language: language,
language_prefix: Paths.language_prefix(language, main_language)
}) do
{:ok, rendered} -> rendered
{:error, _reason} -> render_not_found_page(language)
end
render_with_fallback(
fn ->
Rendering.render_not_found_page(project_id, %{
language: language,
language_prefix: Paths.language_prefix(language, main_language)
})
end,
fn -> render_not_found_page(language) end
)
end
@doc "Static fallback HTML for a 404 page."
@@ -227,6 +194,33 @@ defmodule BDS.Generation.Renderers do
end
end
defp render_with_fallback(render_fun, fallback) do
case render_fun.() do
{:ok, rendered} -> rendered
{:error, _reason} -> fallback.()
end
end
defp render_inline_list_page(title, posts, language, kind) do
items =
posts
|> Enum.map(fn post -> ["<li>", post.title, "</li>"] end)
|> IO.iodata_to_binary()
[
"<html><body data-kind=\"",
kind,
"\" data-language=\"",
to_string(language),
"\"><h1>",
title,
"</h1><ul>",
items,
"</ul></body></html>"
]
|> IO.iodata_to_binary()
end
defp parse_frontmatter_body(contents) do
case String.split(contents, "\n---\n", parts: 2) do
[_frontmatter, body] -> String.trim_trailing(body, "\n")