its_api: patch spaceapi response for homeassistant breakage

src/its_api.rs

@@ -1,4 +1,5 @@
 use reqwest::{Client, Url};
+use serde::Deserialize;
 use thiserror::Error;
 use tracing::{event, instrument, Level};
 
@@ -6,8 +7,10 @@ use tracing::{event, instrument, Level};
 pub enum Error {
     #[error("invalid URL")]
     InvalidUrl(#[from] url::ParseError),
-    #[error("invalid response")]
-    InvalidResponse(#[source] reqwest::Error),
+    #[error("error retrieving API response")]
+    ResponseBody(#[source] reqwest::Error),
+    #[error("invalid JSON in response")]
+    InvalidJson(#[source] serde_json::Error),
     #[error("network request failed")]
     Network(#[source] reqwest::Error),
 }
@@ -20,6 +23,41 @@ pub struct ItsApi {
     client: Client,
 }
 
+fn response_get_lastchange(value: &mut serde_json::Value) -> Option<&mut serde_json::Value> {
+    value
+        .as_object_mut()?
+        .get_mut("state")?
+        .as_object_mut()?
+        .get_mut("lastchange")
+}
+
+fn response_get_icon(
+    value: &mut serde_json::Value,
+) -> Option<&mut serde_json::Map<String, serde_json::Value>> {
+    value
+        .as_object_mut()?
+        .get_mut("state")?
+        .as_object_mut()?
+        .get_mut("icon")?
+        .as_object_mut()
+}
+
+fn patch_response(value: &mut serde_json::Value) {
+    // https://github.com/home-assistant/core/pull/83871
+    if let Some(lastchange) = response_get_lastchange(value) {
+        if let Some(f) = lastchange.as_f64() {
+            *lastchange = (f as u64).into();
+        }
+    }
+
+    // https://github.com/home-assistant/core/pull/108596
+    if let Some(icon) = response_get_icon(value) {
+        if let Some(closed) = icon.remove("close") {
+            icon.insert("closed".to_owned(), closed);
+        }
+    }
+}
+
 impl ItsApi {
     /// Constructs a new IT-Syndikat API handler.
     #[instrument]
@@ -40,15 +78,20 @@ impl ItsApi {
     #[instrument]
     pub async fn status(&self) -> Result<spaceapi::Status, Error> {
         event!(Level::DEBUG, "requesting spaceapi status");
-        let status = self
+        let response = self
             .client
             .get(self.base_url.join("status.php")?)
             .send()
             .await
             .map_err(Error::Network)?
-            .json()
+            .bytes()
             .await
-            .map_err(Error::InvalidResponse)?;
+            .map_err(Error::ResponseBody)?;
+        let mut response = serde_json::from_slice(&response).map_err(Error::InvalidJson)?;
+
+        patch_response(&mut response);
+
+        let status = spaceapi::Status::deserialize(response).map_err(Error::InvalidJson)?;
 
         event!(Level::DEBUG, ?status);
         Ok(status)
@@ -70,7 +113,7 @@ impl ItsApi {
             .await
             .map_err(Error::Network)?
             .error_for_status()
-            .map_err(Error::InvalidResponse)?;
+            .map_err(Error::ResponseBody)?;
 
         Ok(())
     }