feat(backend) update (unfinished)

This commit is contained in:
lumither committed 2025-02-19 16:24:00 -08:00
1 parent bd90cd94d1
commit 84ec754c65
26 files changed
+1607 -14

No files matched your search

@@ -0,0 +1,27 @@
use crate::constants::blog::PAGE_SIZE;
use axum::extract::State;
use axum::Json;
use serde_json::{json, Value};
use sqlx::{query, PgPool, Row};
use tracing::error;
pub async fn get_page_count(
State(db_connection): State<PgPool>,
) -> Result<Json<Value>, Json<Value>> {
match query("select cast(ceil(count(*) / $1) as integer) as res from post")
.bind(PAGE_SIZE as f32)
.fetch_one(&db_connection)
.await
{
Ok(res) => {
let res: i32 = res.get("res");
Ok(Json::from(json!({"res": res})))
}
Err(e) => {
// todo: rename
error!("Failed to get blog page count: {}", e.to_string());
Err(Json::from(json!({"error": e.to_string()})))
}
}
}
@@ -0,0 +1,153 @@
use axum::{
extract::{Path, State},
http::StatusCode,
Json,
};
use serde_json::{json, Value};
use sqlx::{query, Error, PgPool, Row};
use std::str::FromStr;
use tracing::error;
use uuid::Uuid;
pub async fn get_post(
State(db_connection): State<PgPool>,
Path(post_id): Path<String>,
) -> Result<Json<Value>, (StatusCode, Json<Value>)> {
let post_id = match Uuid::from_str(post_id.as_str()) {
Ok(id) => id,
Err(e) => {
error!(
"Failed to parse UUID <{}>: {}",
post_id.as_str(),
e.to_string()
);
return Err((
StatusCode::BAD_REQUEST,
Json::from(json!(("error", e.to_string()))),
));
}
};
let post = match query(
r#"
SELECT jsonb_strip_nulls(to_jsonb(t.*)) - 'post_id' AS post
FROM post t
WHERE post_id = $1;
"#,
)
.bind(post_id)
.fetch_one(&db_connection)
.await
{
Ok(value) => value.get::<Value, _>("post"),
Err(e) => {
error!(
"Database error on Reading `base post information` from table `post`: <{}>: {}",
post_id.to_string(),
e.to_string()
);
return match e {
Error::RowNotFound => Err((
StatusCode::BAD_REQUEST,
Json::from(json!({"error": e.to_string()})),
)),
_ => Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!({"error": e.to_string()})),
)),
};
}
};
let tags: Vec<_> = match query("SELECT tag FROM Tag WHERE post_id = $1;")
.bind(post_id)
.fetch_all(&db_connection)
.await
{
Ok(tags) => tags.iter().map(|tag| tag.get::<String, _>("tag")).collect(),
Err(e) => {
error!("Database query error :{}", e.to_string());
return Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!({"error": e.to_string()})),
));
}
};
let meta = match query(
r#"
SELECT jsonb_strip_nulls(to_jsonb(t.*)) - 'post_id' AS meta
FROM meta t
WHERE post_id = $1;
"#,
)
.bind(post_id)
.fetch_one(&db_connection)
.await
{
Ok(value) => value.get::<Value, _>("meta"),
Err(e) => {
error!(
"Database error on Reading `{}` from table `{}`: <{}>: {}",
"post meta data",
"meta",
post_id.to_string(),
e.to_string()
);
return Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!({"error": e.to_string()})),
));
}
};
let adjacent = match query(r"
WITH target_post AS (SELECT t.date FROM meta t WHERE post_id = $1),
prev AS (SELECT post_id, t.title, t.sub_title, t.header_img
FROM meta t
WHERE t.date < (SELECT date FROM target_post)
ORDER BY t.date DESC
LIMIT 1),
next AS (SELECT post_id, t.title, t.sub_title, t.header_img
FROM meta t
WHERE t.date > (SELECT date FROM target_post)
ORDER BY t.date
LIMIT 1)
SELECT json_strip_nulls(json_build_object(
'prev',
(SELECT json_build_object('id', post_id, 'title', title, 'sub_title', sub_title, 'header_img', header_img)
FROM prev),
'next',
(SELECT json_build_object('id', post_id, 'title', title, 'sub_title', sub_title, 'header_img', header_img)
FROM next)
)) AS result;
"
)
.bind(post_id)
.fetch_one(&db_connection)
.await
{
Ok(res) => {res.get::<Value, _>("result")}
Err(e) => {
error!(
"Database error on Reading `{}` from table `{}`: <{}>: {}",
"adjoint posts data",
"meta",
post_id.to_string(),
e.to_string()
);
return Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!({"error": e.to_string()})),
));
}
};
let mut res = post.as_object().unwrap().to_owned();
res.insert("tags".to_string(), tags.into());
res.insert("meta".to_string(), meta);
res.insert("adj".to_string(), adjacent);
Ok(Json::from(json!(res)))
}
@@ -0,0 +1,130 @@
use std::error::Error;
use crate::constants::blog::PAGE_SIZE;
use axum::{extract::Query, extract::State, http::StatusCode, Json};
use chrono::{DateTime, Utc};
use futures::future::join_all;
use serde::Deserialize;
use serde_json::{json, Map, Value};
use sqlx::{postgres::PgRow, query, PgPool, Row};
use tracing::error;
use uuid::Uuid;
#[derive(Deserialize)]
pub struct Params {
page: Option<u32>,
}
#[axum::debug_handler]
pub async fn get_post_list(
State(db_connection): State<PgPool>,
Query(params): Query<Params>,
) -> Result<Json<Value>, (StatusCode, Json<Value>)> {
let search_param_page = params.page.unwrap_or(1);
if search_param_page < 1 {
return Err((
StatusCode::BAD_REQUEST,
Json::from(json!({"error": "`page` should be greater than 0"})),
));
}
let offset = PAGE_SIZE * (search_param_page - 1);
let post_list = sqlx::query("SELECT * FROM post ORDER BY first_update DESC LIMIT $1 OFFSET $2")
.bind(PAGE_SIZE as i32)
.bind(offset as i32)
.fetch_all(&db_connection)
.await;
let post_list = match post_list {
Ok(post_list) => post_list,
Err(e) => {
error!(
"Database query error on fetching post list: {}",
e.to_string()
);
return Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!({"error": e.to_string()})),
));
}
};
let mut res = Vec::new();
let posts: Vec<_> = post_list
.into_iter()
.map(|post| async { analyze_post(&db_connection, post).await })
.collect();
let posts = join_all(posts).await;
for post in posts {
match post {
Ok(p) => res.push(p),
Err(e) => {
return Err((
StatusCode::INTERNAL_SERVER_ERROR,
Json::from(json!(("error", e.to_string()))),
))
}
}
}
// res.insert("posts".to_string(), Value::from(posts));
Ok(Json::from(Value::from(res)))
}
async fn analyze_post(db_connection: &PgPool, post: PgRow) -> Result<Value, Box<dyn Error + Send>> {
let post_id: Uuid = post.get("post_id");
let tags = fetch_post_tags(db_connection, post_id).await;
let meta = fetch_post_meta(db_connection, post_id).await.unwrap();
let header_img = meta.get("header_img");
let last_update = meta.get("last_update");
Ok(json!({
"post_id": post_id.to_string(),
"title": post.get::<String, _>("title"),
"category": post.get::<String, _>("category"),
"header_img": header_img,
"sub_title": post.get::<String, _>("sub_title"),
"summary": post.get::<String, _>("summary"),
"last_update": last_update,
"first_update": post.get::<DateTime<Utc>, _>("first_update"),
"tags": tags,
}))
}
async fn fetch_post_meta(db_connection: &PgPool, post_id: Uuid) -> Option<Value> {
match query(
r#"
SELECT jsonb_strip_nulls(to_jsonb(t.*)) - 'post_id' AS meta
FROM meta t
WHERE post_id = $1;
"#,
)
.bind(post_id)
.fetch_one(db_connection)
.await
{
Ok(value) => Some(value.get::<Value, _>("meta")),
Err(e) => {
error!(
"Database error on Reading `{}` from table `{}`: <{}>: {}",
"post meta data",
"meta",
post_id.to_string(),
e.to_string()
);
None
}
}
}
async fn fetch_post_tags(db_connection: &PgPool, post_id: Uuid) -> Vec<String> {
match query("SELECT tag FROM Tag WHERE post_id = $1")
.bind(post_id)
.fetch_all(db_connection)
.await
{
Ok(res) => res.iter().map(|tag| tag.get::<String, _>("tag")).collect(),
Err(_) => vec![],
}
}
@@ -0,0 +1,3 @@
pub mod get_page_count;
pub mod get_post;
pub mod get_post_list;
@@ -0,0 +1,49 @@
use thiserror::Error;
#[derive(Error, Debug)]
pub enum PostIdxError {
#[error("missing essential field `{}` for file `{}`", field, filename)]
MissingField { field: String, filename: String },
#[error(
"invalid field `{}` for file `{}`, <{}>: {}",
field_name,
filename,
err_field,
msg
)]
InvalidField {
field_name: String,
err_field: String,
filename: String,
msg: String,
},
#[error(
"database error on writing `{}` to table `{}`: <{}>: {}",
data_desc,
db_table,
id,
msg
)]
DBWriteFailure {
data_desc: String,
db_table: String,
id: String,
msg: String,
},
#[error(
"Database error on Reading `{}` from table `{}`: <{}>: {}",
data_desc,
db_table,
id,
msg
)]
DBReadFailure {
data_desc: String,
db_table: String,
id: String,
msg: String,
},
}
@@ -0,0 +1,353 @@
use std::error::Error;
use std::path::Path;
use crate::{
modules::blog::cron::check_update::utils::get_md_file_basename,
modules::blog::cron::check_update::{error::PostIdxError, utils::parse_date},
};
use markdown::MdFile;
use sqlx::{query, PgPool, Pool, Postgres, Row};
use tokio::runtime::Runtime;
use tracing::{info, warn};
async fn base(db_connection: &PgPool, post: &MdFile) -> Result<(), PostIdxError> {
let post_id = post.file_id;
let title = match post.meta.get("title") {
None => {
return Err(PostIdxError::MissingField {
field: "title".to_string(),
filename: post.filename.clone(),
})
}
Some(title) => title.as_str().unwrap_or_else(|| {
warn!("invalid title for `{}`", &post.filename);
"invalid title"
}),
};
let sub_title = post
.meta
.get("sub_title")
.and_then(|v| v.as_str())
.unwrap_or("");
let summary = post
.meta
.get("summary")
.and_then(|v| v.as_str())
.unwrap_or("");
let content = post.content.as_str();
let category = match post.meta.get("category") {
None => {
return Err(PostIdxError::MissingField {
field: "category".to_string(),
filename: post.filename.clone(),
})
}
Some(title) => title.as_str().unwrap_or_else(|| {
warn!("invalid category for `{}`", &post.filename);
"invalid category"
}),
};
let last_update = {
if let Some(last_update) = post.meta.get("last_update") {
match parse_date(last_update.as_str().unwrap()) {
Ok(date) => Some(date),
Err(e) => {
return Err(PostIdxError::InvalidField {
field_name: "last_update".to_string(),
err_field: last_update.to_string(),
filename: post.filename.clone(),
msg: e.to_string(),
})
}
}
} else {
None
}
};
let first_update = match post.meta.get("date") {
None => {
return Err(PostIdxError::MissingField {
field: "date".to_string(),
filename: post.filename.clone(),
})
}
Some(first_update) => match parse_date(first_update.as_str().unwrap()) {
Ok(date) => date,
Err(e) => {
return Err(PostIdxError::InvalidField {
field_name: "date".to_string(),
err_field: first_update.to_string(),
filename: post.filename.clone(),
msg: e.to_string(),
})
}
},
};
let filename = get_md_file_basename(&post.filename);
if let Err(e) = query(
r##"
INSERT INTO Post (post_id, title, summary, content, last_update, first_update, sub_title, category, filename)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
ON CONFLICT (post_id) DO
UPDATE SET
title = EXCLUDED.title,
summary = EXCLUDED.summary,
content = EXCLUDED.content,
last_update = EXCLUDED.last_update,
first_update = EXCLUDED.first_update,
sub_title = EXCLUDED.sub_title,
category = EXCLUDED.category,
filename = EXCLUDED.filename;
"##,
)
.bind(post_id)
.bind(title)
.bind(summary)
.bind(content)
.bind(last_update)
.bind(first_update)
.bind(sub_title)
.bind(category)
.bind(filename)
.execute(db_connection)
.await
{
return Err(
PostIdxError::DBWriteFailure {
data_desc: "post base information".to_string(),
db_table: "Post".to_string(),
id: post_id.to_string(),
msg: e.to_string(),
}
);
}
Ok(())
}
async fn tag(db_connection: &PgPool, post: &MdFile) -> Result<(), PostIdxError> {
if let Some(tags_string) = post.meta.get("tags").to_owned() {
let tags = match tags_string.as_array().map(|vec| {
vec.iter()
.map(|val| val.as_str().unwrap())
.collect::<Vec<_>>()
}) {
None => {
return Err(PostIdxError::MissingField {
field: "tags".to_string(),
filename: post.filename.clone(),
})
}
Some(val) => val,
};
let post_id = post.file_id;
// remove old record
if let Err(e) = query("DELETE FROM Tag WHERE post_id = $1")
.bind(post_id)
.execute(db_connection)
.await
{
return Err(PostIdxError::DBWriteFailure {
data_desc: "post tag information".to_string(),
db_table: "Tag".to_string(),
id: post_id.to_string(),
msg: e.to_string(),
});
}
// add new record
for tag in tags {
match query("INSERT INTO Tag VALUES ($1, $2);")
.bind(post_id)
.bind(tag)
.execute(db_connection)
.await
{
Ok(_) => {}
Err(e) => {
return Err(PostIdxError::DBWriteFailure {
data_desc: "post tag information".to_string(),
db_table: "Tag".to_string(),
id: post_id.to_string(),
msg: e.to_string(),
})
}
}
}
}
Ok(())
}
async fn hash(db_connection: &PgPool, post: &MdFile) -> Result<bool, PostIdxError> {
let base64_form = post.hash.clone();
match query("SELECT hash FROM Hash WHERE post_id = $1")
.bind(post.file_id)
.fetch_optional(db_connection)
.await
{
Ok(row) => {
let db_record: String = match row {
None => "".to_string(),
Some(row) => row.try_get("hash").unwrap_or("".to_string()),
};
if base64_form == db_record {
Ok(false)
} else {
if let Err(e) = query(
r#"
INSERT INTO Hash (post_id, hash) VALUES ($1, $2)
ON CONFLICT (post_id) DO UPDATE SET hash = EXCLUDED.hash"#,
)
.bind(post.file_id)
.bind(&base64_form)
.execute(db_connection)
.await
{
return Err(PostIdxError::DBWriteFailure {
data_desc: "post hash".to_string(),
db_table: "Hash".to_string(),
id: post.file_id.to_string(),
msg: e.to_string(),
});
}
Ok(true)
}
}
Err(e) => Err(PostIdxError::DBReadFailure {
data_desc: "post hash".to_string(),
db_table: "Hash".to_string(),
id: post.file_id.to_string(),
msg: e.to_string(),
}),
}
}
async fn meta(db_connection: &PgPool, post: &MdFile) -> Result<(), PostIdxError> {
if let Err(e) = query(
// todo: sanitization
format!(
r#"
DO
$$
DECLARE
_post_id UUID := '{}';
_meta_cols JSONB := '{}';
_exists BOOLEAN;
_col_name TEXT;
_col_value TEXT;
_sql TEXT;
_insert_columns TEXT := 'post_id';
_insert_values TEXT := quote_literal(_post_id);
_update_set TEXT := '';
_blacklist TEXT[] := ARRAY['tags'];
BEGIN
SELECT EXISTS(SELECT 1 FROM meta WHERE post_id = _post_id) INTO _exists;
FOR _col_name, _col_value IN SELECT key, value FROM jsonb_each_text(_meta_cols)
LOOP
IF _col_name = ANY(_blacklist) THEN
CONTINUE;
END IF;
IF NOT EXISTS (SELECT 1
FROM information_schema.columns
WHERE table_name = 'meta'
AND column_name = _col_name
-- may change in the future
AND table_schema = 'public') THEN
_sql := 'ALTER TABLE meta ADD COLUMN ' || quote_ident(_col_name) || ' TEXT';
EXECUTE _sql;
END IF;
_insert_columns := _insert_columns || ', ' || quote_ident(_col_name);
_insert_values := _insert_values || ', ' || quote_literal(_col_value);
_update_set := _update_set || ', ' || quote_ident(_col_name) || ' = ' || quote_literal(_col_value);
END LOOP;
_update_set := substring(_update_set FROM 3);
IF _exists THEN
_sql := 'UPDATE meta SET ' || _update_set || ' WHERE post_id = ' || quote_literal(_post_id);
EXECUTE _sql;
ELSE
_sql := 'INSERT INTO meta (' || _insert_columns || ') VALUES (' || _insert_values || ')';
EXECUTE _sql;
END IF;
END;
$$ LANGUAGE plpgsql;
"#, post.file_id.to_string().as_str(), post.meta
).as_str()
)
.execute(db_connection)
.await {
Err(PostIdxError::DBWriteFailure {
data_desc: "post meta data".to_string(),
db_table: "Meta".to_string(),
id: post.file_id.to_string(),
msg: e.to_string(),
})
} else {
Ok(())
}
}
pub async fn index_file(path: &Path, db_conn: &Pool<Postgres>) -> Result<(), Box<dyn Error>> {
let md_file = MdFile::from_file(path)?;
async fn trail(db_conn: &Pool<Postgres>, md_file: &MdFile) -> Result<(), PostIdxError> {
base(db_conn, md_file).await?;
tag(db_conn, md_file).await?;
meta(db_conn, md_file).await?;
hash(db_conn, md_file).await.map(|_| ())
}
let mut cnt = 5;
while let Err(e) = trail(db_conn, &md_file).await {
match e {
PostIdxError::DBWriteFailure { .. } => {
cnt -= 1;
}
PostIdxError::DBReadFailure { .. } => {
cnt -= 1;
}
_ => return Err(e.into()),
}
if cnt <= 0 {
return Err(e.into());
}
}
info!("indexed markdown file: {}", path.display());
Ok(())
}
pub fn drop_index(file_basename: &str, db_conn: &Pool<Postgres>) -> Result<(), Box<dyn Error>> {
let rt = Runtime::new().unwrap();
rt.block_on(async {
if let Err(e) = query(
r#"
WITH deleted_post AS (
DELETE FROM post
WHERE id = (SELECT id FROM post WHERE filename = $1)
RETURNING id
)
DELETE FROM tag WHERE post_id IN (SELECT id FROM deleted_post);
DELETE FROM meta WHERE post_id IN (SELECT id FROM deleted_post);
DELETE FROM hash WHERE post_id IN (SELECT id FROM deleted_post);
"#,
)
.bind(file_basename)
.execute(db_conn)
.await
{
Err(Box::from(
format!("failed to drop index: {}", e).to_string(),
))
} else {
Ok(())
}
})
}
@@ -0,0 +1,148 @@
use std::{
env,
fs::remove_dir_all,
path::{Path, PathBuf},
};
use crate::{
constants::config::general::{default_value, var_name},
modules::blog::cron::check_update::{
index::drop_index,
utils::{expand_path, get_md_file_basename, index_files, search_md},
},
utils::git,
};
use macros::panic_with_log;
use git2::{Delta, Repository};
use sqlx::{Pool, Postgres};
use tracing::{error, info, warn, Level};
mod error;
mod index;
mod utils;
pub fn task(db_connection: &Pool<Postgres>) {
// init
let git_work_dir = {
let path = if let Ok(default_log_path) = env::var(var_name::WORK_DIR) {
expand_path(default_log_path)
} else {
let fallback_path = expand_path(default_value::WORK_DIR.to_string());
warn!(
"unset env var `{}`, using default path: {}/blog_git",
var_name::WORK_DIR,
fallback_path
);
fallback_path
};
Path::new(&path).join("blog_git")
};
// clone & check update
let git_url = match env::var(var_name::BLOG_GIT_URL) {
Ok(url) => url,
Err(e) => {
panic_with_log!(
Level::ERROR,
"failed to read `{}`: {}",
var_name::BLOG_GIT_URL,
e
)
}
};
let git_remote_name = env::var(var_name::BLOG_GIT_REMOTE_NAME)
.unwrap_or(default_value::BLOG_GIT_REMOTE_NAME.to_string());
let git_remote_branch = env::var(var_name::BLOG_GIT_REMOTE_BRANCH)
.unwrap_or(default_value::BLOG_GIT_REMOTE_BRANCH.to_string());
match Repository::open(&git_work_dir) {
Ok(repo) => {
// prevent git remote url mismatch (clean cache)
match repo.find_remote(&git_remote_name) {
Ok(remote) => {
if remote.url().is_some_and(|url| url != git_url) {
remove_dir_all(&git_work_dir).unwrap();
warn!("blog content git({}) url mismatch, reinitialized", &git_url);
return;
}
}
Err(e) => {
remove_dir_all(&git_work_dir).unwrap();
error!(
"unexpected error on indexing blog content git({}), reinitialized: {}",
&git_url, e
);
}
}
match git::sync(&git_remote_name, &git_remote_branch, &repo) {
Ok(updates) => {
if !updates.is_empty() {
// incremental update
info!(
"blog content git({}) update detected: {:?}",
&git_url, updates
);
let mut update_md: Vec<PathBuf> = vec![];
for update in updates {
if [Delta::Deleted, Delta::Untracked].contains(&update.status) {
if let Some(path) = &update.old_path {
if drop_index(
&get_md_file_basename(
path.file_name().unwrap().to_str().unwrap(),
),
db_connection,
)
.is_ok()
{
info!(
"blog content git({}) file `{}` is detected as deleted/untracked, index dropped",
&git_url,
&path.display()
);
} else {
error!(
"blog content git({}) file `{}` is detected as deleted/untracked, failed to drop index",
&git_url,
&path.display()
)
}
}
} else if let Some(path) = &update.new_path {
if path.components().any(|comp| comp.as_os_str() == "posts")
&& path.extension().is_some_and(|ext| ext == "md")
{
update_md.push(path.to_path_buf());
}
}
}
index_files(&update_md, db_connection);
}
}
Err(e) => {
error!(
"failed to sync blog content git({}) updates: {}",
&git_url, e
);
}
}
}
Err(_) => {
match Repository::clone(&git_url, &git_work_dir) {
Ok(_repo) => {
// full repo index
let files = search_md(git_work_dir.join("posts"));
index_files(&files, db_connection);
}
Err(e) => {
error!("failed to clone blog content git({}): {}", &git_url, e);
}
}
}
};
}
@@ -0,0 +1,88 @@
use std::path::PathBuf;
use crate::{
constants::{
config::general::{default_value, var_name},
time::DEFAULT_DATE_FORMAT,
},
modules::blog::cron::check_update::index::index_file,
};
use chrono::{DateTime, FixedOffset, ParseResult};
use dirs::home_dir;
use futures::{executor::block_on, future::join_all};
use sqlx::{Pool, Postgres};
use tokio::{runtime::Runtime, spawn};
use tracing::{error, warn};
pub fn search_md(entry: PathBuf) -> Vec<PathBuf> {
if entry.ends_with(".git") {
return vec![];
}
if entry.is_dir() {
if let Ok(files) = entry.read_dir() {
files
.flat_map(|file| {
let file_path = file.unwrap().path();
search_md(file_path)
})
.collect()
} else {
vec![]
}
} else if entry.extension().is_some_and(|ext| ext == "md") {
vec![entry]
} else {
vec![]
}
}
pub fn index_files(files: &[PathBuf], db_conn: &Pool<Postgres>) {
let rt = Runtime::new().unwrap();
rt.block_on(async {
let files_clone = files.to_owned();
let handlers = files_clone
.into_iter()
.map(|file: PathBuf| {
let conn_clone = db_conn.clone();
spawn(async move {
if let Err(e) = index_file(&file, &conn_clone).await {
error!("failed to index markdown file `{}`: {}", file.display(), e);
}
})
})
.collect::<Vec<_>>();
block_on(join_all(handlers));
});
}
pub fn expand_path(path: String) -> String {
if path.starts_with('~') {
home_dir()
.map(|dir| {
dir.join(path.strip_prefix("~/").unwrap())
.into_os_string()
.into_string()
.unwrap()
})
.unwrap_or_else(|| {
warn!(
"failed to parse env var `{}`, using default value `{}`",
var_name::WORK_DIR,
default_value::WORK_DIR
);
default_value::WORK_DIR.to_string()
})
} else {
path
}
}
pub fn parse_date(date_str: &str) -> ParseResult<DateTime<FixedOffset>> {
DateTime::parse_from_str(format!("{}T120000", date_str).as_str(), DEFAULT_DATE_FORMAT)
}
pub fn get_md_file_basename(f_name: &str) -> String {
f_name.replace(".md", "")
}
@@ -0,0 +1 @@
pub mod check_update;
+50
View File
@@ -0,0 +1,50 @@
mod api;
mod cron;
use crate::{
modules::{
blog::{
api::{
get_page_count::get_page_count, get_post::get_post, get_post_list::get_post_list,
},
cron::check_update,
},
Module,
},
scheduler::tasks::basic::BasicTask,
scheduler::tasks::CronTask,
};
use axum::{routing::get, Router};
use sqlx::PgPool;
const MOUNT_POINT: &str = "/blog";
pub struct Blog {
pub db_handler: PgPool,
}
impl Module for Blog {
fn get_server_router(&self) -> Router {
let db_handler = self.db_handler.clone();
// todo: remove new in get func?
Router::new()
.route("/get_post_list", get(get_post_list))
.route("/get_page_count", get(get_page_count))
.route("/get_post/:post_id", get(get_post))
.with_state(db_handler)
}
fn get_mount_point(&self) -> &'static str {
MOUNT_POINT
}
fn get_cron_tasks(&self) -> Vec<Box<dyn CronTask>> {
let db_handler = self.db_handler.clone();
vec![
BasicTask::new(move || check_update::task(&db_handler), "0/15 * * * * *")
.unwrap()
.to_task(),
]
}
}
+84
View File
@@ -0,0 +1,84 @@
pub mod blog;
use std::env;
use std::num::ParseIntError;
use crate::{
constants::config::server::{default_value, var_name},
scheduler::{tasks::CronTask, Scheduler},
};
use macros::error_panic;
use axum::Router;
use tracing::{info, warn};
// todo: merge `get_server_router` & `get_mount_point`, make Option
pub trait Module {
fn get_server_router(&self) -> Router;
fn get_mount_point(&self) -> &'static str;
fn get_cron_tasks(&self) -> Vec<Box<dyn CronTask>>;
}
pub struct ModuleTree {
pub modules: Vec<Box<dyn Module>>,
}
impl ModuleTree {
pub fn new() -> Self {
ModuleTree { modules: vec![] }
}
pub fn add_module(&mut self, module: impl Module + 'static) -> &mut Self {
self.modules.push(Box::new(module));
self
}
pub async fn blocking_serve(&self) {
let scheduler = Scheduler::new();
let mut app = Router::new();
let port: u32 = match env::var(var_name::PORT) {
Ok(value) => value.parse().unwrap_or_else(|e: ParseIntError| {
warn!(
"failed to parse `{}`, using default port: {}",
var_name::PORT,
e.to_string()
);
default_value::PORT
}),
Err(_) => default_value::PORT,
};
let listener = match tokio::net::TcpListener::bind(format!(
"{}:{}",
default_value::HOST,
port
))
.await
{
Ok(listener) => {
info!("server started on {}:{}", default_value::HOST, port);
listener
}
Err(e) => {
error_panic!(
"failed to start server on {}:{}: {}",
default_value::HOST,
port,
e.to_string()
);
}
};
for module in &self.modules {
let _ = scheduler.insert_list(module.get_cron_tasks());
app = app.nest(module.get_mount_point(), module.get_server_router());
}
axum::serve(listener, app).await.unwrap_or_else(|e| {
error_panic!("failed to start axum: {}", e.to_string());
});
}
}