Deleting tickets now possible

frontend/Cargo.toml

@@ -16,8 +16,8 @@ serde = { version = "1.0.228", features = ["derive"] }
 wasm-bindgen = "0.2.118"
 wasm-bindgen-futures = "0.4.68"
 web-sys = { version = "0.3.95", features = [
-  "Window","Document","Request","Response","Headers", "HtmlSelectElement",
-  "SubmitEvent","InputEvent","HtmlInputElement","Event", "HtmlFormElement"
+  "Window","Document","Request","Response","Headers", "HtmlSelectElement", "RequestCredentials",
+  "SubmitEvent","InputEvent","HtmlInputElement","Event", "HtmlFormElement", "MouseEvent"
 ] }
 gloo-net = "0.7.0"
 yew-router = "0.20.0"

frontend/src/pages/ticket.rs

@@ -242,6 +242,52 @@ pub fn ticket_by_id_component(props: &TicketProps) -> Html {
         })
     };
 
+    let deleting = use_state(|| false);
+    let delete_error = use_state(|| None::<String>);
+
+    let ondelete = {
+        let deleting = deleting.clone();
+        let delete_error = delete_error.clone();
+        let ticket_state = ticket.clone();
+        let id = id;
+
+        Callback::from(move |e: MouseEvent| {
+            e.prevent_default();
+            if !web_sys::window()
+                .and_then(|w| w.confirm_with_message("Sicher löschen?").ok())
+                .unwrap_or(false)
+            {
+                return;
+            }
+
+            deleting.set(true);
+            delete_error.set(None);
+
+            let deleting = deleting.clone();
+            let delete_error = delete_error.clone();
+            let ticket_state = ticket_state.clone();
+
+            spawn_local(async move {
+                let url = format!("/api/tickets/{}", id);
+                let request =
+                    Request::delete(&url).credentials(web_sys::RequestCredentials::Include);
+
+                match request.send().await {
+                    Ok(resp) if resp.status() == 200 || resp.status() == 204 => {
+                        // remove local state or navigate away
+                        ticket_state.set(None); // clears the shown item
+                    }
+                    Ok(resp) => {
+                        let txt = resp.text().await.unwrap_or_else(|_| "Unknown".into());
+                        delete_error.set(Some(format!("HTTP {}: {}", resp.status(), txt)));
+                    }
+                    Err(err) => delete_error.set(Some(format!("Network error: {}", err))),
+                }
+                deleting.set(false);
+            });
+        })
+    };
+
     if *loading {
         html! {<p>{ "Loading" }</p>}
     } else if let Some(e) = &*error {
@@ -274,6 +320,13 @@ pub fn ticket_by_id_component(props: &TicketProps) -> Html {
                     </label>
                     <button type="submit">{ "Aktualisieren" }</button>
                 </form>
+
+                <button onclick={ondelete} disabled={*deleting}>
+                    {if *deleting {"Löschen..."} else {"Löschen"}}
+                </button>
+                if let Some(err) = &*delete_error {
+                    <p style="color:red">{ err.clone() }</p>
+                }
             </div>
         }
     } else {