feat: add repo validation

api/src/validate.rs

@@ -0,0 +1,27 @@
+use actix_web::web;
+
+use crate::AppState;
+use crate::error::{Error, Result};
+use crate::user::RepositorySchema;
+
+pub async fn validate_repo(app_state: web::Data<AppState>, repo: &RepositorySchema) -> Result<()> {
+    let response = app_state
+        .reqwest_client
+        .get(format!(
+            "https://raw.githubusercontent.com/{}/HEAD/dist/index.html",
+            repo.full_name
+        ))
+        .send()
+        .await?;
+
+    match response.status() {
+        reqwest::StatusCode::OK => Ok(()),
+        reqwest::StatusCode::NOT_FOUND => Err(Error::ValidationFailed(
+            "dist/index.html not found in repository".to_string(),
+        )),
+        status => Err(Error::ValidationFailed(format!(
+            "failed to validate repository: HTTP {}",
+            status
+        ))),
+    }
+}