Impl the list_packages API function

src/api/packages.rs

@@ -1,4 +1,40 @@
-pub fn list_packages() {}
+use crate::structs::package::{Package, PackageType};
+
+/// Gets all packages of an owner
+///
+/// https://github.com/go-gitea/gitea/blob/main/routers/api/v1/packages/package.go#L22
+///
+/// Matches the route `GET /packages/{owner}`
+pub async fn list_packages(
+    client: &reqwest::Client,
+    gitea_url: &str,
+    owner: &str,
+    pkg_type: Option<PackageType>,
+) -> crate::Result<Vec<Package>> {
+    let request_url = format!("{gitea_url}/api/v1/packages/{owner}");
+    // add the query parameter only when a package type filter has been set.
+    let request_url = if let Some(pkg_type) = pkg_type {
+        let pkg_type = pkg_type.to_string();
+        format!("{request_url}?type={pkg_type}")
+    } else {
+        request_url
+    };
+    let req = client.get(request_url).send().await;
+    let response = req.map_err(crate::Error::WrappedReqwestErr)?;
+
+    if response.status().is_success() {
+        let release_list = response
+            .json::<Vec<Package>>()
+            .await
+            .map_err(crate::Error::WrappedReqwestErr)?;
+        return Ok(release_list);
+    } else if response.status().is_client_error() {
+        let mesg = crate::decode_client_error(response).await?;
+        return Err(crate::Error::ApiErrorMessage(mesg));
+    }
+    panic!("Reached the end of `api::list_packages()` without matching a return pathway.");
+}
+
 pub fn get_packages() {}
 pub fn delete_package() {}
 pub fn list_package_files() {}