platform: handle platform API responses

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Iedf8e6d6ecf80a42c24a000f6c787ff56a6a6964

src/platform/curseforge.rs

@@ -58,6 +58,25 @@ impl CurseForgePlatform {
     Ok(headers)
   }
 
+  /// Map a non-success HTTP status to the appropriate `PakkerError`.
+  fn map_http_error(status: reqwest::StatusCode, context: &str) -> PakkerError {
+    match status.as_u16() {
+      404 => PakkerError::ProjectNotFound(context.to_string()),
+      401 | 403 => {
+        PakkerError::ConfigError(format!(
+          "CurseForge API authentication failed ({}). Check your API key.",
+          status
+        ))
+      },
+      _ => {
+        PakkerError::PlatformApiError(format!(
+          "CurseForge API returned {} for {}",
+          status, context
+        ))
+      },
+    }
+  }
+
   const fn map_class_id(class_id: u32) -> ProjectType {
     match class_id {
       12 => ProjectType::ResourcePack,
@@ -223,7 +242,7 @@ impl CurseForgePlatform {
       .await?;
 
     if !response.status().is_success() {
-      return Err(PakkerError::ProjectNotFound(slug.to_string()));
+      return Err(Self::map_http_error(response.status(), slug));
     }
 
     let result: CurseForgeSearchResponse = response.json().await?;
@@ -258,6 +277,7 @@ impl PlatformClient for CurseForgePlatform {
         let result: CurseForgeProjectResponse = response.json().await?;
         return Ok(Self::convert_project(result.data));
       }
+      return Err(Self::map_http_error(response.status(), identifier));
     }
 
     let cf_project = self.search_project_by_slug(identifier).await?;
@@ -308,7 +328,7 @@ impl PlatformClient for CurseForgePlatform {
       .await?;
 
     if !response.status().is_success() {
-      return Err(PakkerError::ProjectNotFound(project_id.to_string()));
+      return Err(Self::map_http_error(response.status(), project_id));
     }
 
     let result: CurseForgeFilesResponse = response.json().await?;
@@ -364,7 +384,7 @@ impl PlatformClient for CurseForgePlatform {
       .await?;
 
     if !response.status().is_success() {
-      return Ok(None);
+      return Err(Self::map_http_error(response.status(), "lookup_by_hash"));
     }
 
     let response_data: serde_json::Value = response.json().await?;

src/platform/multiplatform.rs

@@ -38,9 +38,7 @@ impl MultiplatformPlatform {
       Err(e) => {
         let is_not_found = matches!(
           e,
-          PakkerError::ProjectNotFound(_)
+          PakkerError::ProjectNotFound(_) | PakkerError::InvalidResponse(_)
-            | PakkerError::InvalidResponse(_)
-            | PakkerError::ConfigError(_)
         );
         if is_not_found { Ok(None) } else { Err(e) }
       },