feat: first take at M4

This commit is contained in:
2026-04-10 15:32:05 +02:00
parent ee961f1b02
commit 3ca80b00d0
27 changed files with 3923 additions and 21 deletions

View File

@@ -0,0 +1,474 @@
use std::collections::HashMap;
use chrono::{Datelike, TimeZone, Utc};
use serde::Serialize;
use crate::i18n::normalize_language;
use crate::model::{Post, ProjectMetadata};
use crate::render::{RenderError, render_liquid_template};
const STARTER_SINGLE_POST_TEMPLATE: &str = include_str!("../../../../assets/starter-templates/single-post.liquid");
const STARTER_POST_LIST_TEMPLATE: &str = include_str!("../../../../assets/starter-templates/post-list.liquid");
const STARTER_HEAD_PARTIAL: &str = include_str!("../../../../assets/starter-templates/partials/head.liquid");
const STARTER_MENU_PARTIAL: &str = include_str!("../../../../assets/starter-templates/partials/menu.liquid");
const STARTER_LANGUAGE_SWITCHER_PARTIAL: &str = include_str!("../../../../assets/starter-templates/partials/language-switcher.liquid");
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct RenderedPage {
pub relative_path: String,
pub html: String,
}
#[derive(Debug, Clone, Serialize)]
struct AlternateLinkContext {
href: String,
hreflang: String,
}
#[derive(Debug, Clone, Serialize)]
struct BlogLanguageContext {
is_current: bool,
code: String,
flag: String,
href: String,
href_prefix: String,
}
#[derive(Debug, Clone, Serialize)]
struct DayBlockContext {
show_date_marker: bool,
date_label: String,
posts: Vec<serde_json::Value>,
show_separator: bool,
}
#[derive(Debug, Clone, Serialize)]
struct ListTemplateContext {
language: String,
language_prefix: String,
page_title: String,
pico_stylesheet_href: Option<String>,
html_theme_attribute: Option<String>,
alternate_links: Vec<AlternateLinkContext>,
blog_languages: Vec<BlogLanguageContext>,
menu_items: Vec<serde_json::Value>,
calendar_initial_year: i32,
calendar_initial_month: u32,
archive_context: Option<serde_json::Value>,
show_archive_range_heading: bool,
min_date: Option<serde_json::Value>,
max_date: Option<serde_json::Value>,
day_blocks: Vec<DayBlockContext>,
is_list_page: bool,
is_first_page: bool,
is_last_page: bool,
has_prev_page: bool,
has_next_page: bool,
prev_page_href: Option<String>,
next_page_href: Option<String>,
canonical_post_path_by_slug: HashMap<String, String>,
canonical_media_path_by_source_path: HashMap<String, String>,
post_data_json_by_id: HashMap<String, String>,
}
#[derive(Debug, Clone, Serialize)]
struct PostTemplateContext<'a> {
language: &'a str,
language_prefix: String,
page_title: &'a str,
pico_stylesheet_href: Option<String>,
html_theme_attribute: Option<String>,
alternate_links: Vec<AlternateLinkContext>,
blog_languages: Vec<BlogLanguageContext>,
menu_items: Vec<serde_json::Value>,
calendar_initial_year: i32,
calendar_initial_month: u32,
post: serde_json::Value,
post_categories: Vec<String>,
post_tags: Vec<String>,
tag_color_by_name: HashMap<String, String>,
backlinks: Vec<serde_json::Value>,
canonical_post_path_by_slug: HashMap<String, String>,
canonical_media_path_by_source_path: HashMap<String, String>,
post_data_json_by_id: HashMap<String, String>,
}
pub fn build_canonical_post_path(post: &Post, language: &str, main_language: &str) -> String {
let timestamp_ms = post.published_at.unwrap_or(post.created_at);
let Some(timestamp) = Utc.timestamp_millis_opt(timestamp_ms).single() else {
return fallback_language_path(post, language, main_language);
};
let base = format!(
"/{:04}/{:02}/{:02}/{}",
timestamp.year(),
timestamp.month(),
timestamp.day(),
post.slug
);
if language.eq_ignore_ascii_case(main_language) {
base
} else {
format!("/{language}{base}")
}
}
pub fn render_starter_single_post_page(
post: &Post,
body_markdown: &str,
metadata: &ProjectMetadata,
language: &str,
) -> Result<RenderedPage, RenderError> {
let relative_path = format!("{}/index.html", build_canonical_post_path(post, language, main_language(metadata)).trim_start_matches('/'));
let canonical_path = build_canonical_post_path(post, language, main_language(metadata));
let (calendar_initial_year, calendar_initial_month) = calendar_initial_parts(post);
let context = PostTemplateContext {
language,
language_prefix: language_prefix(language, main_language(metadata)),
page_title: &post.title,
pico_stylesheet_href: metadata
.pico_theme
.as_ref()
.map(|_| "/assets/pico.min.css".to_string()),
html_theme_attribute: None,
alternate_links: build_alternate_links(post, metadata, language),
blog_languages: build_blog_languages(post, metadata, language),
menu_items: vec![],
calendar_initial_year,
calendar_initial_month,
post: serde_json::json!({
"id": post.id,
"title": post.title,
"content": body_markdown,
}),
post_categories: post.categories.clone(),
post_tags: post.tags.clone(),
tag_color_by_name: post
.tags
.iter()
.map(|tag| (tag.clone(), String::new()))
.collect(),
backlinks: vec![],
canonical_post_path_by_slug: HashMap::from([(post.slug.clone(), canonical_path)]),
canonical_media_path_by_source_path: HashMap::new(),
post_data_json_by_id: HashMap::new(),
};
let html = render_liquid_template(
STARTER_SINGLE_POST_TEMPLATE,
&starter_partials(),
&context,
)?;
Ok(RenderedPage { relative_path, html })
}
pub fn render_starter_list_page(
posts: &[(Post, String)],
metadata: &ProjectMetadata,
language: &str,
) -> Result<RenderedPage, RenderError> {
let relative_path = if language.eq_ignore_ascii_case(main_language(metadata)) {
"index.html".to_string()
} else {
format!("{language}/index.html")
};
let canonical_paths = posts
.iter()
.map(|(post, _)| {
(
post.slug.clone(),
build_canonical_post_path(post, language, main_language(metadata)),
)
})
.collect::<HashMap<_, _>>();
let (calendar_initial_year, calendar_initial_month) = posts
.first()
.map(|(post, _)| calendar_initial_parts(post))
.unwrap_or((1970, 1));
let context = ListTemplateContext {
language: language.to_string(),
language_prefix: language_prefix(language, main_language(metadata)),
page_title: metadata.name.clone(),
pico_stylesheet_href: metadata
.pico_theme
.as_ref()
.map(|_| "/assets/pico.min.css".to_string()),
html_theme_attribute: None,
alternate_links: vec![],
blog_languages: build_blog_languages_for_index(metadata, language),
menu_items: vec![],
calendar_initial_year,
calendar_initial_month,
archive_context: None,
show_archive_range_heading: false,
min_date: None,
max_date: None,
day_blocks: build_day_blocks(posts),
is_list_page: false,
is_first_page: true,
is_last_page: true,
has_prev_page: false,
has_next_page: false,
prev_page_href: None,
next_page_href: None,
canonical_post_path_by_slug: canonical_paths,
canonical_media_path_by_source_path: HashMap::new(),
post_data_json_by_id: HashMap::new(),
};
let html = render_liquid_template(
&starter_post_list_template(),
&starter_partials(),
&context,
)?;
Ok(RenderedPage { relative_path, html })
}
fn starter_partials() -> HashMap<String, String> {
HashMap::from([
("partials/head".to_string(), STARTER_HEAD_PARTIAL.to_string()),
("partials/menu".to_string(), STARTER_MENU_PARTIAL.to_string()),
(
"partials/language-switcher".to_string(),
STARTER_LANGUAGE_SWITCHER_PARTIAL.to_string(),
),
(
"partials/menu-items".to_string(),
"{% for item in items %}<a href=\"{{ item.href }}\">{{ item.title }}</a>{% endfor %}".to_string(),
),
])
}
fn starter_post_list_template() -> String {
STARTER_POST_LIST_TEMPLATE.replace(
"{% render 'partials/head', page_title: page_title, pico_stylesheet_href: pico_stylesheet_href, language_prefix: language_prefix %}",
"{% render 'partials/head', page_title: page_title, pico_stylesheet_href: pico_stylesheet_href, language_prefix: language_prefix, alternate_links: alternate_links %}",
)
}
fn main_language(metadata: &ProjectMetadata) -> &str {
metadata.main_language.as_deref().unwrap_or("en")
}
fn language_prefix(language: &str, main_language: &str) -> String {
if language.eq_ignore_ascii_case(main_language) {
String::new()
} else {
format!("/{language}")
}
}
fn fallback_language_path(post: &Post, language: &str, main_language: &str) -> String {
if language.eq_ignore_ascii_case(main_language) {
format!("/posts/{}", post.slug)
} else {
format!("/{language}/posts/{}", post.slug)
}
}
fn calendar_initial_parts(post: &Post) -> (i32, u32) {
let timestamp_ms = post.published_at.unwrap_or(post.created_at);
Utc.timestamp_millis_opt(timestamp_ms)
.single()
.map(|timestamp| (timestamp.year(), timestamp.month()))
.unwrap_or((1970, 1))
}
fn build_alternate_links(post: &Post, metadata: &ProjectMetadata, current_language: &str) -> Vec<AlternateLinkContext> {
metadata
.blog_languages
.iter()
.map(|language| AlternateLinkContext {
href: build_absolute_post_url(post, metadata, language),
hreflang: language.clone(),
})
.chain(std::iter::once(AlternateLinkContext {
href: build_absolute_post_url(post, metadata, current_language),
hreflang: "x-default".to_string(),
}))
.collect()
}
fn build_blog_languages(post: &Post, metadata: &ProjectMetadata, current_language: &str) -> Vec<BlogLanguageContext> {
metadata
.blog_languages
.iter()
.map(|language| BlogLanguageContext {
is_current: language.eq_ignore_ascii_case(current_language),
code: language.clone(),
flag: render_flag(language),
href: build_absolute_post_url(post, metadata, language),
href_prefix: language_prefix(language, main_language(metadata)),
})
.collect()
}
fn build_blog_languages_for_index(metadata: &ProjectMetadata, current_language: &str) -> Vec<BlogLanguageContext> {
metadata
.blog_languages
.iter()
.map(|language| BlogLanguageContext {
is_current: language.eq_ignore_ascii_case(current_language),
code: language.clone(),
flag: render_flag(language),
href: build_absolute_index_url(metadata, language),
href_prefix: language_prefix(language, main_language(metadata)),
})
.collect()
}
fn build_absolute_post_url(post: &Post, metadata: &ProjectMetadata, language: &str) -> String {
let base_url = metadata.public_url.as_deref().unwrap_or("").trim_end_matches('/');
format!("{base_url}{}", build_canonical_post_path(post, language, main_language(metadata)))
}
fn build_absolute_index_url(metadata: &ProjectMetadata, language: &str) -> String {
let base_url = metadata.public_url.as_deref().unwrap_or("").trim_end_matches('/');
let suffix = if language.eq_ignore_ascii_case(main_language(metadata)) {
"/".to_string()
} else {
format!("/{language}/")
};
format!("{base_url}{suffix}")
}
fn render_flag(language: &str) -> String {
normalize_language(language).flag_emoji().to_string()
}
fn build_day_blocks(posts: &[(Post, String)]) -> Vec<DayBlockContext> {
let mut blocks: Vec<DayBlockContext> = Vec::new();
let mut current_key: Option<String> = None;
for (post, body) in posts {
let timestamp_ms = post.published_at.unwrap_or(post.created_at);
let Some(timestamp) = Utc.timestamp_millis_opt(timestamp_ms).single() else {
continue;
};
let key = format!("{:04}-{:02}-{:02}", timestamp.year(), timestamp.month(), timestamp.day());
if current_key.as_deref() != Some(key.as_str()) {
if let Some(last) = blocks.last_mut() {
last.show_separator = true;
}
current_key = Some(key);
blocks.push(DayBlockContext {
show_date_marker: true,
date_label: format!("{:02}.{:02}.{:04}", timestamp.day(), timestamp.month(), timestamp.year()),
posts: Vec::new(),
show_separator: false,
});
}
if let Some(block) = blocks.last_mut() {
block.posts.push(serde_json::json!({
"id": post.id,
"slug": post.slug,
"title": post.title,
"content": post.excerpt.clone().unwrap_or_else(|| body.clone()),
"show_title": true,
}));
}
}
blocks
}
#[cfg(test)]
mod tests {
use super::*;
use crate::model::PostStatus;
fn make_post() -> Post {
Post {
id: "post-1".into(),
project_id: "project-1".into(),
title: "Hello".into(),
slug: "hello".into(),
excerpt: None,
content: Some("Body".into()),
status: PostStatus::Published,
author: None,
language: Some("en".into()),
do_not_translate: false,
template_slug: None,
file_path: String::new(),
checksum: None,
tags: vec![],
categories: vec![],
published_title: None,
published_content: None,
published_tags: None,
published_categories: None,
published_excerpt: None,
created_at: 1_710_000_000_000,
updated_at: 1_710_000_000_000,
published_at: Some(1_710_000_000_000),
}
}
fn make_metadata() -> ProjectMetadata {
ProjectMetadata {
name: "Blog".into(),
description: None,
public_url: Some("https://example.com".into()),
main_language: Some("en".into()),
default_author: None,
max_posts_per_page: 50,
blogmark_category: None,
pico_theme: None,
semantic_similarity_enabled: false,
blog_languages: vec!["en".into(), "de".into()],
}
}
#[test]
fn canonical_post_paths_follow_language_prefix_rule() {
let post = make_post();
assert_eq!(build_canonical_post_path(&post, "en", "en"), "/2024/03/09/hello");
assert_eq!(build_canonical_post_path(&post, "de", "en"), "/de/2024/03/09/hello");
}
#[test]
fn starter_single_post_renderer_uses_canonical_route_and_language_links() {
let post = make_post();
let metadata = make_metadata();
let rendered = render_starter_single_post_page(&post, "Body with [link](/posts/hello)", &metadata, "en").unwrap();
assert_eq!(rendered.relative_path, "2024/03/09/hello/index.html");
assert!(rendered.html.contains("https://example.com/2024/03/09/hello"));
assert!(rendered.html.contains("https://example.com/de/2024/03/09/hello"));
assert!(rendered.html.contains("href=\"/2024/03/09/hello\""));
}
#[test]
fn starter_list_renderer_groups_posts_and_uses_language_specific_index_path() {
let metadata = make_metadata();
let first = make_post();
let mut second = make_post();
second.id = "post-2".into();
second.slug = "next".into();
second.title = "Next".into();
second.published_at = Some(1_710_086_400_000);
second.created_at = 1_710_086_400_000;
let rendered = render_starter_list_page(
&[(first, "First body".into()), (second, "Second body".into())],
&metadata,
"de",
)
.unwrap();
assert_eq!(rendered.relative_path, "de/index.html");
assert!(rendered.html.contains("archive-day-group"));
assert!(rendered.html.contains("09.03.2024"));
assert!(rendered.html.contains("10.03.2024"));
assert!(rendered.html.contains("href=\"/de/2024/03/10/next\""));
}
}