import { readFileSync } from "node:fs";
import { describe, expect, it } from "vitest";
import { readGatewayNetworkClientConnectTimeoutMs } from "../../scripts/e2e/lib/gateway-network/limits.mjs";

describe("gateway network WebSocket open guard", () => {
  it("rejects loose client timeout env values instead of parsing prefixes", () => {
    expect(() =>
      readGatewayNetworkClientConnectTimeoutMs({
        OPENCLAW_GATEWAY_NETWORK_CLIENT_CONNECT_TIMEOUT_MS: "100ms",
      }),
    ).toThrow("invalid OPENCLAW_GATEWAY_NETWORK_CLIENT_CONNECT_TIMEOUT_MS: 100ms");
    expect(() =>
      readGatewayNetworkClientConnectTimeoutMs({
        OPENCLAW_GATEWAY_NETWORK_CONNECT_READY_TIMEOUT_MS: "1e3",
      }),
    ).toThrow("invalid OPENCLAW_GATEWAY_NETWORK_CONNECT_READY_TIMEOUT_MS: 1e3");
    expect(() =>
      readGatewayNetworkClientConnectTimeoutMs({
        OPENCLAW_GATEWAY_NETWORK_CLIENT_CONNECT_TIMEOUT_MS: "0",
      }),
    ).toThrow("invalid OPENCLAW_GATEWAY_NETWORK_CLIENT_CONNECT_TIMEOUT_MS: 0");
  });

  it("prefers the explicit client timeout over the connect-ready fallback", () => {
    expect(
      readGatewayNetworkClientConnectTimeoutMs({
        OPENCLAW_GATEWAY_NETWORK_CLIENT_CONNECT_TIMEOUT_MS: "5000",
        OPENCLAW_GATEWAY_NETWORK_CONNECT_READY_TIMEOUT_MS: "1000",
      }),
    ).toBe(5000);
    expect(
      readGatewayNetworkClientConnectTimeoutMs({
        OPENCLAW_GATEWAY_NETWORK_CONNECT_READY_TIMEOUT_MS: "3000",
      }),
    ).toBe(3000);
  });

  it("proves health after the authenticated connect handshake", () => {
    const client = readFileSync("scripts/e2e/lib/gateway-network/client.mjs", "utf8");
    const connectIndex = client.indexOf('method: "connect"');
    const healthIndex = client.indexOf('method: "health"');

    expect(connectIndex).toBeGreaterThanOrEqual(0);
    expect(healthIndex).toBeGreaterThan(connectIndex);
    expect(client).toContain('responseError("health", healthRes)');
    expect(client).toContain('message.includes("closed before open")');
  });
});