Mountain/IPC/WindServiceHandlers/UI/DecorationsGet.rs
1//! Wire method: `decorations:get`.
2//! Reads a URI decoration from cache, then falls back to a registered
3//! FileDecoration provider via Cocoon gRPC.
4
5use std::sync::Arc;
6
7use serde_json::Value;
8use CommonLibrary::LanguageFeature::LanguageFeatureProviderRegistry::LanguageFeatureProviderRegistry;
9
10use crate::RunTime::ApplicationRunTime::ApplicationRunTime;
11
12pub async fn Fn(RunTime:Arc<ApplicationRunTime>, Arguments:Vec<Value>) -> Result<Value, String> {
13 let Uri = Arguments
14 .first()
15 .and_then(|V| V.as_str())
16 .ok_or("decorations:get requires uri".to_string())?;
17
18 if let Some(Cached) = RunTime.Environment.ApplicationState.Feature.Decorations.GetDecoration(Uri) {
19 return Ok(Cached);
20 }
21
22 if let Ok(ParsedUri) = url::Url::parse(Uri) {
23 match RunTime.Environment.ProvideFileDecoration(ParsedUri).await {
24 Ok(Some(Result)) => {
25 RunTime
26 .Environment
27 .ApplicationState
28 .Feature
29 .Decorations
30 .SetDecoration(Uri, Result.clone());
31
32 return Ok(Result);
33 },
34
35 Ok(None) => {},
36
37 Err(E) => {
38 crate::dev_log!("decorations", "warn: [DecorationsGet] provider error for {}: {}", Uri, E);
39 },
40 }
41 }
42
43 Ok(Value::Null)
44}