feat(gateway): refactor gateway form and connection check logic

frontend/src/lib/gateway-form.ts

@@ -0,0 +1,56 @@
+import { gatewaysStatusApiV1GatewaysStatusGet } from "@/api/generated/gateways/gateways";
+
+export const DEFAULT_MAIN_SESSION_KEY = "agent:main:main";
+export const DEFAULT_WORKSPACE_ROOT = "~/.openclaw";
+
+export type GatewayCheckStatus = "idle" | "checking" | "success" | "error";
+
+export const validateGatewayUrl = (value: string) => {
+  const trimmed = value.trim();
+  if (!trimmed) return "Gateway URL is required.";
+  try {
+    const url = new URL(trimmed);
+    if (url.protocol !== "ws:" && url.protocol !== "wss:") {
+      return "Gateway URL must start with ws:// or wss://.";
+    }
+    if (!url.port) {
+      return "Gateway URL must include an explicit port.";
+    }
+    return null;
+  } catch {
+    return "Enter a valid gateway URL including port.";
+  }
+};
+
+export async function checkGatewayConnection(params: {
+  gatewayUrl: string;
+  gatewayToken: string;
+  mainSessionKey: string;
+}): Promise<{ ok: boolean; message: string }> {
+  try {
+    const requestParams: Record<string, string> = {
+      gateway_url: params.gatewayUrl.trim(),
+    };
+    if (params.gatewayToken.trim()) {
+      requestParams.gateway_token = params.gatewayToken.trim();
+    }
+    if (params.mainSessionKey.trim()) {
+      requestParams.gateway_main_session_key = params.mainSessionKey.trim();
+    }
+
+    const response = await gatewaysStatusApiV1GatewaysStatusGet(requestParams);
+    if (response.status !== 200) {
+      return { ok: false, message: "Unable to reach gateway." };
+    }
+    const data = response.data;
+    if (!data.connected) {
+      return { ok: false, message: data.error ?? "Unable to reach gateway." };
+    }
+    return { ok: true, message: "Gateway reachable." };
+  } catch (error) {
+    return {
+      ok: false,
+      message: error instanceof Error ? error.message : "Unable to reach gateway.",
+    };
+  }
+}