import { beforeEach, expect, test, vi } from "vitest";

import { POST } from "../../../app/api/libraries/uploads/presign/route";

const { backendRequestMock } = vi.hoisted(() => ({
  backendRequestMock: vi.fn(),
}));

vi.mock("@/lib/http/backend-client", () => ({
  backendRequest: backendRequestMock,
}));

beforeEach(() => {
  backendRequestMock.mockReset();
});

test("proxies upload presign requests and normalizes the response for the frontend", async () => {
  backendRequestMock.mockResolvedValue({
    status: 200,
    data: {
      method: "PUT",
      upload_url: "https://s3.example.com/presigned-put",
      headers: {
        "content-type": "image/png",
      },
      storage_key: "library/models/2026/ava-original.png",
      public_url: "https://images.example.com/library/models/2026/ava-original.png",
    },
  });

  const response = await POST(
    new Request("http://localhost/api/libraries/uploads/presign", {
      method: "POST",
      headers: {
        "content-type": "application/json",
      },
      body: JSON.stringify({
        resourceType: "model",
        fileRole: "original",
        fileName: "ava-original.png",
        contentType: "image/png",
      }),
    }),
  );
  const payload = await response.json();

  expect(response.status).toBe(200);
  expect(payload).toEqual({
    mode: "proxy",
    data: {
      method: "PUT",
      uploadUrl: "https://s3.example.com/presigned-put",
      headers: {
        "content-type": "image/png",
      },
      storageKey: "library/models/2026/ava-original.png",
      publicUrl: "https://images.example.com/library/models/2026/ava-original.png",
    },
  });
  expect(backendRequestMock).toHaveBeenCalledWith("/library/uploads/presign", {
    method: "POST",
    body: JSON.stringify({
      resource_type: "model",
      file_role: "original",
      file_name: "ava-original.png",
      content_type: "image/png",
    }),
  });
});

test("rejects invalid presign payloads before proxying", async () => {
  const response = await POST(
    new Request("http://localhost/api/libraries/uploads/presign", {
      method: "POST",
      headers: {
        "content-type": "application/json",
      },
      body: JSON.stringify({
        resourceType: "unknown",
        fileRole: "original",
        fileName: "",
        contentType: "image/png",
      }),
    }),
  );
  const payload = await response.json();

  expect(response.status).toBe(400);
  expect(payload).toMatchObject({
    error: "VALIDATION_ERROR",
    message: "上传参数不合法。",
  });
  expect(backendRequestMock).not.toHaveBeenCalled();
});