check if installed version is highest version

src/repository.rs

@@ -8,25 +8,31 @@ pub fn find_package_in_repositories(package: &str, installed: Option<u64>) -> Op
     let mut hits: Vec<String> = vec!();
     let client = reqwest::Client::new();
     let repo_file = File::open("/var/gaypack/repositories.list").expect("Failed to open repository list");
-    let mut candidates: HashMap<u64, String> = HashMap::new();
+    let mut candidates: HashMap<String, u64> = HashMap::new();
     for repository in std::io::BufReader::new(repo_file).lines() {
         let repository = repository.expect("Unexpected error"); // i find this line kinda funny for some reason
         let resp = block_on(client.get(format!("{}/gaypack/{}/latest/Package.toml", repository, package)).send()).expect("GET request failed");
         let status = resp.status();
         let text = block_on(resp.text()).expect("Failed to receive packet body");
         if installed.is_some() {
-            candidates.insert(installed.unwrap(), "installed".to_string());
+            candidates.insert("installed".to_string(), installed.unwrap());
         }
         let package_data = &crate::package::read_package(text);
         dbg!(package_data);
         if status == StatusCode::from_u16(200).unwrap() {
-            candidates.insert(package_data.revision, repository);
+            candidates.insert(repository, package_data.revision);
         }
     };
     let mut sorted: Vec<_> = candidates.iter().collect();
-    sorted.sort_by_key(|entry| entry.0);
-    for (_, repository) in sorted.iter() {
+    sorted.sort_by_key(|entry| entry.1);
+    let mut highest_version: u64 = 0;
+    for (repository, version) in sorted.iter() {
+        if **version > highest_version {highest_version = **version};
         hits.push(repository.as_str().to_string());
     }
-    return Some(hits);
+    if candidates.get("installed") == Some(highest_version) {
+        None
+    } else {
+        Some(hits)
+    }
 }