import { describe, expect, it } from "vitest";
import { GET, POST } from "./route";

describe("Velocity access API problems", () => {
  it("returns RFC 9457 for unsupported methods", async () => {
    const response = GET(new Request("http://localhost/api/velocity/access"));

    expect(response.status).toBe(405);
    expect(response.headers.get("allow")).toBe("POST");
    expect(response.headers.get("content-type")).toBe("application/problem+json");
    expect(await response.json()).toMatchObject({
      type: "urn:error:method-not-allowed",
      title: "Method not allowed",
      status: 405,
      instance: "/api/velocity/access",
    });
  });

  it("returns RFC 9457 when credentials are missing", async () => {
    const response = await POST(new Request("http://localhost/api/velocity/access", {
      method: "POST",
      body: JSON.stringify({}),
    }));

    expect(response.status).toBe(401);
    expect(response.headers.get("content-type")).toBe("application/problem+json");
    expect(await response.json()).toEqual({
      type: "urn:error:unauthorized",
      title: "Unauthorized",
      status: 401,
      detail: "A valid Velocity server credential is required.",
      instance: "/api/velocity/access",
    });
  });

  it("rejects unsupported media types as Problem Details", async () => {
    const response = await POST(new Request("http://localhost/api/velocity/access", {
      method: "POST",
      headers: {
        authorization: "Bearer test-token",
        "content-type": "text/plain",
      },
      body: "not json",
    }));

    expect(response.status).toBe(415);
    expect(response.headers.get("content-type")).toBe("application/problem+json");
    expect(await response.json()).toMatchObject({
      type: "urn:error:unsupported-media-type",
      title: "Unsupported media type",
      status: 415,
      instance: "/api/velocity/access",
    });
  });

  it("includes machine-readable validation issues", async () => {
    const response = await POST(new Request("http://localhost/api/velocity/access", {
      method: "POST",
      headers: {
        authorization: "Bearer test-token",
        "content-type": "application/json",
      },
      body: JSON.stringify({ serverId: "velocity-main" }),
    }));
    const problem = await response.json();

    expect(response.status).toBe(400);
    expect(response.headers.get("content-type")).toBe("application/problem+json");
    expect(problem).toMatchObject({
      type: "urn:error:invalid-velocity-access-request",
      title: "Invalid Velocity access request",
      status: 400,
      instance: "/api/velocity/access",
      extensions: { issues: expect.any(Array) },
    });
    expect(problem.extensions.issues.length).toBeGreaterThan(0);
  });
});