[Classroom] Disenroll user from a course

backend/src/controller/classroom/courses.rs

@@ -0,0 +1,27 @@
+use rocket::{http::Status, serde::json::Json};
+use serde::Deserialize;
+
+use crate::json_result::JsonResult;
+use crate::online_classroom::course_disenroll::disenroll;
+
+#[derive(Debug, Deserialize)]
+pub struct DisenrollData {
+    pub course_id: i32,
+    pub user_id: i32,
+}
+
+#[options("/classroom/disenroll")]
+pub fn disenroll_user_options() -> Status {
+    Status::Ok
+}
+
+#[post("/classroom/disenroll", format = "json", data = "<data>")]
+pub async fn disenroll_user(data: Json<DisenrollData>) -> Json<JsonResult<()>> {
+    match disenroll(data.course_id, data.user_id).await {
+        Ok(_) => JsonResult::ok(()),
+        Err(err) => {
+            log::error!("Error disenrolling user: {}", err);
+            JsonResult::err(err)
+        }
+    }
+}

backend/src/controller/classroom/mod.rs

@@ -10,6 +10,11 @@ use crate::{
 };
 use rocket::{http::Status, serde::json::Json};
 
+mod courses;
+
+pub use courses::disenroll_user_options;
+pub use courses::disenroll_user;
+
 #[options("/classroom/user")]
 pub fn create_user_options() -> Status {
     Status::Ok

backend/src/main.rs

@@ -143,6 +143,8 @@ async fn rocket() -> _ {
             controller::classroom::create_user_options,
             controller::classroom::create_user,
             controller::classroom::get_courses,
+            controller::classroom::disenroll_user_options,
+            controller::classroom::disenroll_user,
             controller::classroom::register_course_contr_options,
             controller::classroom::register_course_contr,
             controller::classroom::get_expiration_date,

backend/src/online_classroom/course_disenroll.rs

@@ -0,0 +1,9 @@
+use super::session::classroom_get_redirect;
+
+pub async fn disenroll(course_id: i32, user_id: i32) -> Result<(), String> {
+    classroom_get_redirect(format!(
+        "/main/admin/user_information.php?action=unsubscribe&course_id={}&user_id={}",
+        course_id, user_id
+    ))
+    .await
+}

backend/src/online_classroom/mod.rs

@@ -4,6 +4,7 @@ use crate::json_result::JsonResult;
 
 use self::session::ensure_session;
 
+pub mod course_disenroll;
 pub mod create_user;
 pub mod get_courses;
 pub mod get_expiration_date;
@@ -11,7 +12,6 @@ pub mod register_course;
 mod session;
 pub mod update_expiration_date;
 pub mod user;
-pub mod course_disenroll;
 
 /// Tries to connect to the online classroom, and gets a session cookie
 /// if neccesary.

backend/src/online_classroom/session.rs

@@ -58,6 +58,42 @@ pub async fn classroom_post_redirect(
     }
 }
 
+/// Make a get request & expect an http 302 redirect
+pub async fn classroom_get_redirect(url: String) -> Result<(), String> {
+    let classroom_url = std::env::var("CLASSROOM_URL").expect("CLASSROOM_URL env var is not set!");
+
+    ensure_session().await?;
+
+    // Get the stored client
+    let jar = SESSION_COOKIE.read().unwrap().jar.clone();
+
+    let uri = format!("{}{}", classroom_url, url);
+
+    // Do the request
+    let response = Request::get(uri)
+        .cookie_jar(jar)
+        .body("")
+        .or_else(|err| Err(format!("Error creating request: {:?}", err)))?
+        .send();
+
+    let mut response = match response {
+        Ok(r) => r,
+        Err(err) => return Err(format!("Error sending request: {:?}", err)),
+    };
+
+    if response.status() == isahc::http::StatusCode::FOUND {
+        return Ok(());
+    }
+
+    match response.text() {
+        Ok(t) => {
+            log_html(&t);
+            Err(format!("Expected HTTP 302, got other code."))
+        }
+        Err(err) => Err(format!("Error getting text from response: {:?}", err)),
+    }
+}
+
 /// Makes a request to the online classroom, and returns the html string
 pub async fn request(url: String) -> Result<String, String> {
     let classroom_url = std::env::var("CLASSROOM_URL").expect("CLASSROOM_URL env var is not set!");

frontend/src/OnlineClassroom/ClassroomUserInfo/Courses.tsx

@@ -58,7 +58,7 @@ export function CoursesList(props: {userid: number, updateSignal: number, course
             </div>
 
             <For each={props.courses}>
-                {(c) => <Course course={c} />}
+                {(c) => <Course course={c} user_id={props.userid} onDelete={loadCourses} />}
             </For>
 
             <Show when={error() !== ""}>
@@ -79,7 +79,34 @@ export function CoursesList(props: {userid: number, updateSignal: number, course
     );
 }
 
-function Course(props: {course: ClassroomCourse}) {
+function Course(props: {
+    course: ClassroomCourse,
+    user_id: number,
+    onDelete: () => void,
+}) {
+    const { error, setError, status, setStatus } = useLoading();
+
+    const disenroll = () => {
+        console.log(`in the process of disenroll... ${props.course.course_id}`);
+        setStatus(LoadingStatus.Loading);
+        setError("");
+
+        backend.post("/api/classroom/disenroll", {
+            course_id: props.course.course_id,
+            user_id: props.user_id,
+        })
+            .then(() => {
+                setStatus(LoadingStatus.Ok);
+                props.onDelete();
+            })
+            .catch((err) => {
+                alert("Error desmatriculando. Ver consola");
+                console.log(err);
+                // setError(err);
+                setStatus(LoadingStatus.Error);
+            });
+    };
+
     return (
         <div
             class="px-4 py-3 transition-colors
@@ -89,7 +116,8 @@ function Course(props: {course: ClassroomCourse}) {
             <p>{props.course.name}</p>
             <button
                 class="disabled:opacity-50 disabled:cursor-not-allowed"
-                disabled
+                onclick={disenroll}
+                disabled={status() === LoadingStatus.Loading}
             >
                 <XIcon fill="var(--c-error)" />
             </button>

frontend/src/components/NavRail.tsx

@@ -18,7 +18,7 @@ export function NavRail() {
                 <NavRailButton path="/certs" name="Certs" icon={<DocxIcon />} />
                 <NavRailButton path="/accesos" name="Accesos" icon={<KeyIcon />} />
                 <NavRailButton path="/escaneo" name="Escaneo" icon={<ScanIcon />} />
-                <NavRailButton path="/reportes" name="Reportes" icon={<ChartScatterIcon />} />
+                <NavRailButton path="/reportes" name="Reportes" icon={<ChartScatterIcon fill="var(--c-on-surface-variant)" />} />
                 <ColorSelector />
             </div>
             <div id="color-selector" />