import { TRADING_BOT_PROXY_PATH } from "@rakazo/core";
import { Hono } from "hono";
import { describe, expect, it, vi } from "vitest";
import { mountTradingBotStatus } from "./trading-bot-proxy.js";

function proxyApp(options: {
  baseUrl?: string;
  authorize?: (request: Request) => Promise<boolean>;
  fetchImpl?: typeof fetch;
}) {
  const app = new Hono();
  mountTradingBotStatus(app, {
    baseUrl: options.baseUrl,
    authorize: options.authorize ?? (async () => true),
    fetchImpl: options.fetchImpl,
  });
  return app;
}

describe("trading bot status proxy", () => {
  it("stays idle when TRADING_BOT_URL is unset and does not call upstream", async () => {
    const fetchImpl = vi.fn();
    const response = await proxyApp({ fetchImpl }).request(TRADING_BOT_PROXY_PATH);
    expect(response.status).toBe(200);
    expect(await response.json()).toEqual({ configured: false });
    expect(fetchImpl).not.toHaveBeenCalled();
  });

  it("requires a session before it proxies a configured origin", async () => {
    const fetchImpl = vi.fn();
    const response = await proxyApp({
      baseUrl: "http://bot.test:8000",
      authorize: async () => false,
      fetchImpl,
    }).request(TRADING_BOT_PROXY_PATH, { headers: { cookie: "session=secret" } });
    expect(response.status).toBe(401);
    expect(fetchImpl).not.toHaveBeenCalled();
  });

  it("returns the mapped status and does not forward browser credentials", async () => {
    const fetchImpl = vi.fn(
      async () =>
        new Response(
          JSON.stringify({ mode: "LIVE", adapter_count: 2, last_error: "adapter timeout" }),
          { status: 200, headers: { "content-type": "application/json" } },
        ),
    );
    const response = await proxyApp({
      baseUrl: "http://bot.test:8000",
      fetchImpl,
    }).request(TRADING_BOT_PROXY_PATH, {
      headers: { cookie: "session=secret", authorization: "Bearer browser-token" },
    });
    expect(response.status).toBe(200);
    expect(await response.json()).toEqual({
      configured: true,
      reachable: true,
      status: {
        mode: "live",
        kind: "live",
        adapterCount: 2,
        lastError: "adapter timeout",
      },
    });
    expect(fetchImpl).toHaveBeenCalledTimes(1);
    const [url, init] = fetchImpl.mock.calls[0] as [string, RequestInit];
    expect(url).toBe("http://bot.test:8000/bot/api/status");
    const headers = new Headers(init.headers);
    expect(headers.get("cookie")).toBeNull();
    expect(headers.get("authorization")).toBeNull();
    expect(init.redirect).toBe("error");
  });

  it("hides an unmapped body and an upstream failure instead of claiming live", async () => {
    const unmapped = vi.fn(
      async () =>
        new Response(JSON.stringify({ status: "ok" }), {
          status: 200,
          headers: { "content-type": "application/json" },
        }),
    );
    const unknown = await proxyApp({
      baseUrl: "http://bot.test:8000",
      fetchImpl: unmapped,
    }).request(TRADING_BOT_PROXY_PATH);
    expect(await unknown.json()).toEqual({ configured: true, reachable: true, status: null });

    const down = vi.fn(async () => new Response("nope", { status: 500 }));
    const offline = await proxyApp({
      baseUrl: "http://bot.test:8000",
      fetchImpl: down,
    }).request(TRADING_BOT_PROXY_PATH);
    expect(offline.status).toBe(502);
    expect(await offline.json()).toEqual({ configured: true, reachable: false });
  });
});