fix(index): fix index page

.changes/contest.md

@@ -0,0 +1,5 @@
+---
+"algohub-server": patch:feat
+---
+
+Support create and list all contests.

.changes/create-contest.md

@@ -0,0 +1,5 @@
+---
+"algohub-server": patch:feat
+---
+
+Support `ContestProblem` model to display submits and acceptations.

.changes/index.md

@@ -0,0 +1,5 @@
+---
+"algohub-server": patch:fix
+---
+
+Fixed index pages cannot be displayed correctly.

.changes/rank.md

@@ -0,0 +1,5 @@
+---
+"algohub-server": patch:feat
+---
+
+Support enpoints for getting rank list.

.gitignore

@@ -16,3 +16,6 @@
 
 # Node.js
 /node_modules
+
+# Assets
+/dist

src/models/contest.rs

@@ -127,3 +127,12 @@ pub struct ContestProblem {
     pub submitted_count: u32,
     pub accepted_count: u32,
 }
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(rename_all = "camelCase")]
+pub struct ContestRank {
+    name: String,
+    problem_id: String,
+    accepted: bool,
+    wrongs: u32,
+}

src/routes/contest.rs

@@ -3,7 +3,7 @@ use surrealdb::{engine::remote::ws::Client, sql::Thing, Surreal};
 
 use crate::{
     models::{
-        contest::{AddProblems, ContestProblem, CreateContest, UserContest},
+        contest::{AddProblems, ContestProblem, ContestRank, CreateContest, UserContest},
         error::Error,
         response::{Empty, Response},
         Credentials, OwnedId,
@@ -119,6 +119,25 @@ pub async fn get(
     }))
 }
 
+#[post("/rank/<id>", data = "<auth>")]
+pub async fn rank(
+    db: &State<Surreal<Client>>,
+    id: &str,
+    auth: Json<Credentials<'_>>,
+) -> Result<Vec<ContestRank>> {
+    if !session::verify(db, auth.id, auth.token).await {
+        return Err(Error::Unauthorized(Json("Invalid credentials".into())));
+    }
+
+    let rank = contest::rank(db, id).await?;
+
+    Ok(Json(Response {
+        success: true,
+        message: "Contest rank retrieved successfully".into(),
+        data: Some(rank),
+    }))
+}
+
 pub fn routes() -> Vec<rocket::Route> {
     use rocket::routes;
     routes![create, get, add_problems, list_problems, list_all]

src/routes/index.rs

@@ -12,8 +12,13 @@ use rocket::fs::NamedFile;
 use surrealdb::engine::remote::ws::Client;
 use surrealdb::{engine::remote::ws::Ws, opt::auth::Root, Surreal};
 
+#[get("/")]
+async fn index() -> Result<NamedFile, std::io::Error> {
+    NamedFile::open("dist/index.html").await
+}
+
 #[get("/<file..>", rank = 1)]
-async fn index(file: PathBuf) -> Option<NamedFile> {
+async fn files(file: PathBuf) -> Option<NamedFile> {
     NamedFile::open(Path::new("dist/").join(file)).await.ok()
 }
 
@@ -39,7 +44,7 @@ pub async fn init_db(db_addr: &str) -> Result<Surreal<Client>> {
 pub async fn rocket(db: Surreal<Client>) -> rocket::Rocket<rocket::Build> {
     rocket::build()
         .attach(CORS)
-        .mount("/", routes![index])
+        .mount("/", routes![index, files])
         .mount("/account", account::routes())
         .mount("/asset", asset::routes())
         .mount("/problem", problem::routes())

src/utils/contest.rs

@@ -1,7 +1,7 @@
 use anyhow::Result;
 use surrealdb::{engine::remote::ws::Client, sql::Thing, Surreal};
 
-use crate::models::contest::{Contest, ContestData, ContestProblem};
+use crate::models::contest::{Contest, ContestData, ContestProblem, ContestRank};
 
 pub async fn create(
     db: &Surreal<Client>,
@@ -106,3 +106,35 @@ pub async fn remove_problem(
         .await?
         .take(0)?)
 }
+
+const RANK_QUERY: &str = r#"
+SELECT VALUE array::map((SELECT VALUE id FROM type::thing("contest", $id).problems), |$problem| {
+    LET $submissions = SELECT judge_result.status.type AS status, created_at
+    FROM submission WHERE problem.id == $problem AND $parent.id == creator ORDER BY created_at ASC;
+    LET $first_accepted = array::find_index($submissions, |$submission| {
+        RETURN $submission.status == "accepted"
+    });
+    RETURN IF $first_accepted {
+        RETURN {
+            name: $problem.title,
+            problem_id: record::id($problem),
+            accepted: true,
+            wrongs: count($submissions) - $first_accepted - 1,
+        }
+    } ELSE {
+        RETURN {
+            name: $problem.title,
+            problem_id: record::id($problem),
+            accepted: false,
+            wrongs: count($submissions),
+        }
+    }
+}) FROM array::distinct(SELECT VALUE creator FROM submission)
+"#;
+pub async fn rank(db: &Surreal<Client>, id: &str) -> Result<Vec<ContestRank>> {
+    Ok(db
+        .query(RANK_QUERY)
+        .bind(("id", id.to_string()))
+        .await?
+        .take(0)?)
+}