refactor: Move GitHub API fetch to submodule and re-use existing function (#51)

* refactor: Import all functions from lib

So that I don't need to update the header each time I add/remove a
function.

* refactor: Move function to submodule

Move it to module for GitHub API related tasks.

* refactor: Re-use existing func for fetching GH API

1 files changed, 29 insertions, 0 deletions

diff --git a/src-tauri/src/github/release_notes.rs b/src-tauri/src/github/release_notes.rs
index 20c535ba..9a87c49b 100644
--- a/src-tauri/src/github/release_notes.rs
+++ b/src-tauri/src/github/release_notes.rs
@@ -27,6 +27,35 @@ async fn fetch_github_releases_api(url: &str) -> Result<String, String> {
     Ok(res)
 }
 
+/// Checks if installed FlightCore version is up-to-date
+/// false -> FlightCore install is up-to-date
+/// true  -> FlightCore install is outdated
+pub async fn check_is_flightcore_outdated() -> Result<bool, String> {
+    // Get newest version number from GitHub API
+    println!("Checking GitHub API");
+    let url = "https://api.github.com/repos/GeckoEidechse/FlightCore/releases/latest";
+    let res = fetch_github_releases_api(url).await?;
+
+    let json_response: serde_json::Value =
+        serde_json::from_str(&res).expect("JSON was not well-formatted");
+    println!("Done checking GitHub API");
+
+    // Extract version number from JSON
+    let newest_release_version = json_response
+        .get("tag_name")
+        .and_then(|value| value.as_str())
+        .unwrap();
+
+    // Get version of installed FlightCore...
+    let version = env!("CARGO_PKG_VERSION");
+    // ...and format it
+    let version = format!("v{}", version);
+
+    // TODO: This shouldn't be a string compare but promper semver compare
+    Ok(version != newest_release_version)
+}
+
+
 #[tauri::command]
 pub async fn get_northstar_release_notes() -> Result<Vec<ReleaseInfo>, String> {
     let url = "https://api.github.com/repos/R2Northstar/Northstar/releases";