web/api: remove deprecated statuses, update error type, time out request

also updated some error codes

web/src/components/save/buttons/DownloadButton.svelte

@@ -68,16 +68,16 @@
 
             return createDialog({
                 ...defaultErrorPopup,
-                bodyText: "couldn't access the api",
+                bodyText: $t("error.api.unreachable"),
             });
         }
 
-        if (response.status === "error" || response.status === "rate-limit") {
+        if (response.status === "error") {
             changeDownloadButton("error");
 
             return createDialog({
                 ...defaultErrorPopup,
-                bodyText: response.text,
+                bodyText: $t(response.error.code),
             });
         }
 
@@ -101,7 +101,7 @@
 
                 return createDialog({
                     ...defaultErrorPopup,
-                    bodyText: "couldn't probe the stream",
+                    bodyText: $t("error.stream.failed_probe"),
                 });
             }
         }
@@ -139,7 +139,7 @@
 
         return createDialog({
             ...defaultErrorPopup,
-            bodyText: "unknown/unsupported status",
+            bodyText: $t("error.api.unknown_response"),
         });
     };
 </script>

web/src/lib/api.ts

@@ -91,12 +91,22 @@ const request = async (url: string) => {
     const response: Optional<CobaltAPIResponse> = await fetch(api, {
         method: "POST",
         redirect: "manual",
+        signal: AbortSignal.timeout(10000),
         body: JSON.stringify(request),
         headers: {
             'Accept': 'application/json',
             'Content-Type': 'application/json'
         }
-    }).then(r => r.json()).catch(() => {});
+    }).then(r => r.json()).catch((e) => {
+        if (e?.message?.includes("timed out")) {
+            return {
+                status: "error",
+                error: {
+                    code: "error.api.timed_out"
+                }
+            }
+        }
+    });
 
     return response;
 }

web/src/lib/types/api.ts

@@ -1,14 +1,19 @@
 enum CobaltResponseType {
     Error = 'error',
-    RateLimit = 'rate-limit',
     Picker = 'picker',
     Redirect = 'redirect',
     Stream = 'stream',
 }
 
 type CobaltErrorResponse = {
-    status: CobaltResponseType.Error | CobaltResponseType.RateLimit,
-    text: string,
+    status: CobaltResponseType.Error,
+    error: {
+        code: string,
+        context?: {
+            service?: string,
+            limit?: number,
+        }
+    }
 };
 
 type CobaltPartialURLResponse = {