import { describe, expect, it, vi } from "vitest";
import { GET } from "@/app/api/discover/route";
import { mapDiscover } from "@/lib/discover";

const expert = {
  id: 7, slug: "jane-doe", first_name: "Jane", last_name: "Doe", byline: "Coach",
  url_picture: "https://img/jane.jpg", rating: 4.9, reviews_count: 12, available: true,
  city: "Austin", country: "US",
  quick_question_rate: 25, video_call_rate: 100, is_blocking: false, score: 99,
  leaderboard: 3, profile_views: 500, status: "active",
  phone: "555-1234", dob: "1990-01-01", zip: "78701", email: "jane@x.com",
  gender: "f", stripe_account_id: "acct_1", kyc_status: "verified",
};
const body = {
  data: {
    featured_experts: [expert],
    trending_conversations: [{
      id: "c1", question_text: "How?", answer_text: "secret text", views: 10,
      made_public_on: "2026-01-01", thumbnail: { url: "https://img/t.jpg" },
      answer: { url: "https://a/1.mp3", duration: 42, waveform_data: [1, 2, 3], file_type: "audio" },
      expert,
    }],
    trending_categories: [
      { id: 2, name: "Money", icon: "m", sort_order: 2, active: true, search: "x" },
      { id: 1, name: "Health", icon: "h", sort_order: 1, active: true },
      { id: 3, name: "Hidden", icon: "x", sort_order: 0, active: false },
    ],
    popular_topics: [], wallet: { balance: 5 },
  },
};

async function withUpstream(impl: () => Promise<Response>) {
  const orig = globalThis.fetch;
  const spy = vi.fn(impl);
  globalThis.fetch = spy as unknown as typeof fetch;
  try {
    return { res: await GET(), spy };
  } finally {
    globalThis.fetch = orig;
  }
}

describe("GET /api/discover", () => {
  it("maps public fields, sorts and filters categories, sends no auth", async () => {
    const { res, spy } = await withUpstream(async () => new Response(JSON.stringify(body)));
    expect(res.status).toBe(200);
    const json = await res.json();
    expect(json.featuredExperts[0]).toEqual({
      id: 7, slug: "jane-doe", displayName: "Jane Doe", byline: "Coach",
      pictureUrl: "https://img/jane.jpg", rating: 4.9, reviewsCount: 12, available: true,
      location: { city: "Austin", country: "US" },
    });
    expect(json.trendingMinnects[0]).toEqual({
      id: "c1", question: "How?", views: 10, thumbnailUrl: "https://img/t.jpg",
      media: { kind: "audio", url: "https://a/1.mp3", duration: 42, waveform: [1, 2, 3] },
      expert: { slug: "jane-doe", displayName: "Jane Doe", pictureUrl: "https://img/jane.jpg", byline: "Coach", rating: 4.9 },
    });
    expect(json.categories).toEqual([
      { id: 1, name: "Health", icon: "h", sortOrder: 1 },
      { id: 2, name: "Money", icon: "m", sortOrder: 2 },
    ]);
    const [url, init] = spy.mock.calls[0] as unknown as [string, RequestInit];
    expect(url).toBe("https://api.minnect.com/api/v1/individual/home");
    expect(JSON.stringify(init.headers)).not.toMatch(/authorization/i);
  });

  it("never leaks PII, KYC, payment or internal fields", async () => {
    const { res } = await withUpstream(async () => new Response(JSON.stringify(body)));
    const text = JSON.stringify(await res.json());
    for (const bad of [
      "555-1234", "1990-01-01", "78701", "jane@x.com", "acct_1", "kyc", "stripe",
      "is_blocking", "isBlocking", "score", "leaderboard", "profile_views",
      "quick_question_rate", "video_call_rate", "secret text", "wallet", "balance",
      "gender", "phone", "dob", "zip", "email",
    ]) {
      expect(text.toLowerCase()).not.toContain(bad.toLowerCase());
    }
  });

  it("tolerates missing fields", () => {
    const out = mapDiscover({
      data: {
        featured_experts: [{ id: 1 }, {}, null, "x"],
        trending_conversations: [{ id: 2 }, { question_text: "no id" }],
        trending_categories: [{ id: 3, name: "A" }, { id: 4 }],
      },
    });
    expect(out.featuredExperts).toEqual([{
      id: 1, slug: null, displayName: "", byline: null, pictureUrl: null, rating: null,
      reviewsCount: null, available: null, location: { city: null, country: null },
    }]);
    expect(out.trendingMinnects).toHaveLength(1);
    expect(out.trendingMinnects[0].media).toBeNull();
    expect(out.categories).toEqual([{ id: 3, name: "A", icon: null, sortOrder: 0 }]);
    expect(mapDiscover(null)).toEqual({ featuredExperts: [], trendingMinnects: [], categories: [] });
  });

  it("upstream non-2xx -> 502", async () => {
    const { res } = await withUpstream(async () => new Response("boom", { status: 500 }));
    expect(res.status).toBe(502);
    expect(await res.json()).toEqual({ error: "discover_unavailable" });
  });

  it("network error or bad JSON -> 502", async () => {
    const a = await withUpstream(async () => { throw new Error("down"); });
    expect(a.res.status).toBe(502);
    const b = await withUpstream(async () => new Response("<html>"));
    expect(b.res.status).toBe(502);
  });
});

describe("trending media kind", () => {
  const conv = (answer: unknown) => mapDiscover({ data: { trending_conversations: [{ id: 1, answer }] } }).trendingMinnects[0].media;
  it.each(["MOV", "mp4", "M4V", "QuickTime", "MO4", "webm"])("maps %s to video and keeps the signed url", (t) => {
    const url = "https://valuentainment-quick-questions-prod.s3.amazonaws.com/a.mov?X-Amz-Signature=abc";
    expect(conv({ url, file_type: t, duration: 5 })).toEqual({ kind: "video", url, duration: 5, waveform: null });
  });
  it("maps other or missing file types to audio", () => {
    expect(conv({ url: "https://a/x", file_type: "aac" })?.kind).toBe("audio");
    expect(conv({ url: "https://a/x" })?.kind).toBe("audio");
  });
  it("has no media without a url", () => {
    expect(conv({ file_type: "MOV" })).toBeNull();
  });
});