Add endpoint to check if repository apllication is installed (#281)

Author: Filip-L

fplus-http-server/src/main.rs

@@ -116,6 +116,7 @@ async fn main() -> std::io::Result<()> {
             .service(router::allocator::delete)
             .service(router::allocator::create_allocator_from_json)
             .service(router::allocator::update_allocator_force)
+            .service(router::allocator::check_if_repository_application_is_installed)
             .service(router::autoallocator::last_client_allocation)
             .service(router::autoallocator::trigger_autoallocation)
             .service(router::autoallocator::check_if_allowance_is_sufficient)

fplus-http-server/src/router/allocator.rs

@@ -6,10 +6,10 @@ use actix_web::{
 use fplus_database::database::allocators as allocators_db;
 use fplus_lib::core::{
     allocator::{
-        create_allocator_from_file, fetch_installation_ids, force_update_allocators,
-        generate_github_app_jwt,
+        check_if_repo_app_installed, create_allocator_from_file, fetch_installation_ids,
+        force_update_allocators, generate_github_app_jwt,
     },
-    AllocatorUpdateForceInfo, ChangedAllocators,
+    AllocatorUpdateForceInfo, ChangedAllocators, GithubQueryParams,
 };
 use reqwest::Client;
 /**
@@ -126,3 +126,13 @@ pub async fn get_installation_ids() -> actix_web::Result<impl Responder> {
     })?;
     Ok(HttpResponse::Ok().json(ids))
 }
+
+#[get("/allocator/check_if_repository_application_is_installed")]
+pub async fn check_if_repository_application_is_installed(
+    query: web::Query<GithubQueryParams>,
+) -> actix_web::Result<impl Responder> {
+    check_if_repo_app_installed(&query.owner, &query.repo)
+        .await
+        .map_err(ErrorInternalServerError)?;
+    Ok(HttpResponse::Ok().json("Application is installed"))
+}

fplus-lib/src/core/allocator/mod.rs

@@ -664,3 +664,18 @@ pub async fn create_allocator_from_file(files_changed: Vec<String>) -> Result<()
     }
     Ok(())
 }
+
+pub async fn check_if_repo_app_installed(owner: &str, repo: &str) -> Result<(), LDNError> {
+    let gh = GithubWrapper::new(owner.to_string(), repo.to_string(), None)?;
+    gh.inner
+        .apps()
+        .get_repository_installation(owner.to_string(), repo.to_string())
+        .await
+        .map(|installation| installation.id.0)
+        .map_err(|e| {
+            LDNError::New(format!(
+                "Installation Id not found for a repo: {repo} /// {e}"
+            ))
+        })?;
+    Ok(())
+}