WIP: return immediately for solving and add get endpoint

Cargo.lock

@@ -283,6 +283,7 @@ dependencies = [
  "adf_bdd",
  "argon2",
  "env_logger 0.9.3",
+ "futures-util",
  "log",
  "mongodb",
  "names",
@@ -1143,9 +1144,9 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86d7a0c1aa76363dac491de0ee99faf6941128376f1cf96f07db7603b7de69dd"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
 
 [[package]]
 name = "futures-executor"
@@ -1160,19 +1161,19 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89d422fa3cbe3b40dca574ab087abb5bc98258ea57eea3fd6f1fa7162c778b91"
+checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3eb14ed937631bd8b8b8977f2c198443447a8355b6e3ca599f38c975e5a963b6"
+checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.8",
 ]
 
 [[package]]
@@ -1183,15 +1184,15 @@ checksum = "ec93083a4aecafb2a80a885c9de1f0ccae9dbd32c2bb54b0c3a65690e0b8d2f2"
 
 [[package]]
 name = "futures-task"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd65540d33b37b16542a0438c12e6aeead10d4ac5d05bd3f805b8f35ab592879"
+checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"
 
 [[package]]
 name = "futures-util"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ef6b17e481503ec85211fed8f39d1970f128935ca1f814cd32ac4a6842e84ab"
+checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
 dependencies = [
  "futures-core",
  "futures-io",

server/Cargo.toml

@@ -24,6 +24,7 @@ actix-identity = "0.5.2"
 argon2 = "0.5.0"
 actix-session = { version="0.7.2", features = ["cookie-session"] }
 names = "0.14.0"
+futures-util = "0.3.28"
 
 [features]
 cors_for_local_development = []

server/src/adf.rs

@@ -1,16 +1,18 @@
-use std::collections::HashMap;
+use std::collections::{HashMap, HashSet};
 use std::sync::{Arc, RwLock};
 
 use actix_identity::Identity;
+use actix_web::rt::spawn;
 use actix_web::rt::task::spawn_blocking;
 use actix_web::rt::time::timeout;
-use actix_web::{post, put, web, HttpMessage, HttpRequest, HttpResponse, Responder};
+use actix_web::{get, post, put, web, HttpMessage, HttpRequest, HttpResponse, Responder};
 use adf_bdd::datatypes::adf::VarContainer;
 use adf_bdd::datatypes::{BddNode, Term, Var};
 use mongodb::bson::doc;
 use mongodb::bson::{to_bson, Bson};
 use names::{Generator, Name};
 use serde::{Deserialize, Serialize};
+use futures_util::FutureExt;
 
 use adf_bdd::adf::{Adf, DoubleLabeledGraph};
 use adf_bdd::adfbiodivine::Adf as BdAdf;
@@ -22,13 +24,13 @@ use crate::user::{username_exists, User};
 type Ac = Vec<Term>;
 type AcDb = Vec<String>;
 
-#[derive(Clone, Deserialize, Serialize)]
+#[derive(Copy, Clone, Deserialize, Serialize)]
 pub(crate) enum Parsing {
     Naive,
     Hybrid,
 }
 
-#[derive(Clone, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Deserialize, Serialize)]
 pub(crate) enum Strategy {
     Ground,
     Complete,
@@ -175,6 +177,32 @@ async fn adf_problem_exists(
         .is_some()
 }
 
+#[derive(Serialize)]
+struct AdfProblemInfo {
+    name: String,
+    code: String,
+    parsing_used: Parsing,
+    acs_per_strategy: AcsPerStrategy,
+    running_tasks: Vec<Task>,
+}
+
+impl AdfProblemInfo {
+    fn from_adf_prob_and_tasks(adf: AdfProblem, tasks: &HashSet<RunningInfo>) -> Self {
+        AdfProblemInfo {
+            name: adf.name.clone(),
+            code: adf.code,
+            parsing_used: adf.parsing_used,
+            acs_per_strategy: adf.acs_per_strategy,
+            running_tasks: tasks
+                .iter()
+                .filter_map(|t| {
+                    (t.adf_name == adf.name && t.username == adf.username).then_some(t.task)
+                })
+                .collect(),
+        }
+    }
+}
+
 #[post("/add")]
 async fn add_adf_problem(
     req: HttpRequest,
@@ -274,6 +302,8 @@ async fn add_adf_problem(
     let adf_problem_input_clone = adf_problem_input.clone();
     let username_clone = username.clone();
     let problem_name_clone = problem_name.clone();
+
+    // TODO: change this: we want to return a response from the request whil the computation is running
     let adf_res = timeout(
         COMPUTE_TIME,
         spawn_blocking(move || {
@@ -322,7 +352,10 @@ async fn add_adf_problem(
         Ok(Err(err)) => HttpResponse::InternalServerError().body(err.to_string()),
         Ok(Ok(Err(err))) => HttpResponse::InternalServerError().body(err.to_string()),
         Ok(Ok(Ok((adf, ac_and_graph)))) => {
-            let acs = AcsPerStrategy { parse_only: Some(vec![ac_and_graph]), ..Default::default()};
+            let acs = AcsPerStrategy {
+                parse_only: Some(vec![ac_and_graph]),
+                ..Default::default()
+            };
 
             let adf_problem: AdfProblem = AdfProblem {
                 name: problem_name,
@@ -336,7 +369,7 @@ async fn add_adf_problem(
             let result = adf_coll.insert_one(&adf_problem, None).await;
 
             match result {
-                Ok(_) => HttpResponse::Ok().json(adf_problem), // TODO: return name of problem here (especially since it may be generated)
+                Ok(_) => HttpResponse::Ok().json(AdfProblemInfo::from_adf_prob_and_tasks(adf_problem, &HashSet::new())), // there should be no tasks running here
                 Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
             }
         }
@@ -400,7 +433,9 @@ async fn solve_adf_problem(
     let username_clone = username.clone();
     let problem_name_clone = problem_name.clone();
     let strategy_clone = adf_problem_input.strategy.clone();
-    let acs_and_graphs_res = timeout(
+
+    // TODO: change this: we want to return a response from the request whil the computation is running
+    let acs_and_graphs_fut = timeout(
         COMPUTE_TIME,
         spawn_blocking(move || {
             let running_info = RunningInfo {
@@ -456,26 +491,68 @@ async fn solve_adf_problem(
 
             acs_and_graphs
         }),
-    )
+    );
-    .await;
 
-    match acs_and_graphs_res {
+    spawn(acs_and_graphs_fut.then(move |acs_and_graphs_res| async move {
-        Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
+        match acs_and_graphs_res {
-        Ok(Err(err)) => HttpResponse::InternalServerError().body(err.to_string()),
+            // TODO: error states should somehow be set in the database since the status codes are irrelevant in this future
-        Ok(Ok(acs_and_graphs)) => {
+            Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
-            let result = adf_coll.update_one(doc! { "name": &problem_name, "username": &username }, match adf_problem_input.strategy {
+            Ok(Err(err)) => HttpResponse::InternalServerError().body(err.to_string()),
-                Strategy::Complete => doc! { "$set": { "acs_per_strategy.complete": Some(&acs_and_graphs) } },
+            Ok(Ok(acs_and_graphs)) => {
-                Strategy::Ground => doc! { "$set": { "acs_per_strategy.ground": Some(&acs_and_graphs) } },
+                let result = adf_coll.update_one(doc! { "name": problem_name, "username": username }, match adf_problem_input.strategy {
-                Strategy::Stable => doc! { "$set": { "acs_per_strategy.stable": Some(&acs_and_graphs) } },
+                    Strategy::Complete => doc! { "$set": { "acs_per_strategy.complete": Some(&acs_and_graphs) } },
-                Strategy::StableCountingA => doc! { "$set": { "acs_per_strategy.stable_counting_a": Some(&acs_and_graphs) } },
+                    Strategy::Ground => doc! { "$set": { "acs_per_strategy.ground": Some(&acs_and_graphs) } },
-                Strategy::StableCountingB => doc! { "$set": { "acs_per_strategy.stable_counting_b": Some(&acs_and_graphs) } },
+                    Strategy::Stable => doc! { "$set": { "acs_per_strategy.stable": Some(&acs_and_graphs) } },
-                Strategy::StableNogood => doc! { "$set": { "acs_per_strategy.stable_nogood": Some(&acs_and_graphs) } },
+                    Strategy::StableCountingA => doc! { "$set": { "acs_per_strategy.stable_counting_a": Some(&acs_and_graphs) } },
-            }, None).await;
+                    Strategy::StableCountingB => doc! { "$set": { "acs_per_strategy.stable_counting_b": Some(&acs_and_graphs) } },
+                    Strategy::StableNogood => doc! { "$set": { "acs_per_strategy.stable_nogood": Some(&acs_and_graphs) } },
+                }, None).await;
 
-            match result {
+                match result {
-                Ok(_) => HttpResponse::Ok().json(acs_and_graphs),
+                    Ok(_) => HttpResponse::Ok().json(acs_and_graphs),
-                Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
+                    Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
+                }
             }
-        }
+        };
-    }
+    }));
+
+    HttpResponse::Ok().body("Parsing started...")
+}
+
+#[get("/{problem_name}")]
+async fn get_adf_problem(
+    app_state: web::Data<AppState>,
+    identity: Option<Identity>,
+    path: web::Path<String>,
+) -> impl Responder {
+    let problem_name = path.into_inner();
+    let adf_coll: mongodb::Collection<AdfProblem> = app_state
+        .mongodb_client
+        .database(DB_NAME)
+        .collection(ADF_COLL);
+
+    let username = match identity.map(|id| id.id()) {
+        None => {
+            return HttpResponse::Unauthorized().body("You need to login to get an ADF problem.")
+        }
+        Some(Err(err)) => return HttpResponse::InternalServerError().body(err.to_string()),
+        Some(Ok(username)) => username,
+    };
+
+    let adf_problem = match adf_coll
+        .find_one(doc! { "name": &problem_name, "username": &username }, None)
+        .await
+    {
+        Err(err) => return HttpResponse::InternalServerError().body(err.to_string()),
+        Ok(None) => {
+            return HttpResponse::NotFound()
+                .body(format!("ADF problem with name {problem_name} not found."))
+        }
+        Ok(Some(prob)) => prob,
+    };
+
+    HttpResponse::Ok().json(AdfProblemInfo::from_adf_prob_and_tasks(
+        adf_problem,
+        &app_state.currently_running.lock().unwrap(),
+    ))
 }

server/src/config.rs

@@ -3,6 +3,7 @@ use std::sync::Mutex;
 use std::time::Duration;
 
 use mongodb::Client;
+use serde::Serialize;
 
 use crate::adf::Strategy;
 
@@ -16,7 +17,7 @@ pub(crate) const DB_NAME: &str = "adf-obdd";
 pub(crate) const USER_COLL: &str = "users";
 pub(crate) const ADF_COLL: &str = "adf-problems";
 
-#[derive(Clone, PartialEq, Eq, Hash)]
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Serialize)]
 pub(crate) enum Task {
     Parse,
     Solve(Strategy),

server/src/user.rs

@@ -280,8 +280,7 @@ async fn update_user(
         Some(id) => match id.id() {
             Err(err) => HttpResponse::InternalServerError().body(err.to_string()),
             Ok(username) => {
-                if user.username != username && username_exists(&user_coll, &user.username).await
+                if user.username != username && username_exists(&user_coll, &user.username).await {
-                {
                     return HttpResponse::Conflict()
                         .body("Username is already taken. Please pick another one!");
                 }