import { describe, expect, it, vi } from "vitest";
import {
  fetchOpenAiModelCatalog,
  normalizeBaseUrl,
  toModelCatalog,
} from "../src/lib/providers.js";

describe("provider utilities", () => {
  it("normalizes base URLs by trimming whitespace and trailing slashes", () => {
    expect(normalizeBaseUrl(" https://example.test/v1/ ")).toBe("https://example.test/v1");
  });

  it("dedupes and sorts fetched model entries", () => {
    expect(
      toModelCatalog([
        { id: "gpt-5.4" },
        { id: "gpt-5.3-mini", name: "GPT-5.3 Mini" },
        { id: "gpt-5.4", name: "Duplicate" },
        { id: " " },
      ]),
    ).toEqual([
      { id: "gpt-5.3-mini", label: "GPT-5.3 Mini", raw: { id: "gpt-5.3-mini", name: "GPT-5.3 Mini" } },
      { id: "gpt-5.4", label: "gpt-5.4", raw: { id: "gpt-5.4" } },
    ]);
  });

  it("fetches the openai-compatible model catalog with bearer auth", async () => {
    const fetchMock = vi.fn<typeof fetch>(async (_url, _init) => ({
      ok: true,
      json: async () => ({
        data: [
          { id: "gpt-5.4" },
          { id: "gpt-5.3-codex", name: "GPT-5.3 Codex" },
        ],
      }),
    } as Response));

    const result = await fetchOpenAiModelCatalog(fetchMock, {
      baseUrl: "https://example.test/v1/",
      apiKey: "sk-provider",
    });

    expect(fetchMock).toHaveBeenCalledWith(
      "https://example.test/v1/models",
      expect.objectContaining({
        headers: {
          Authorization: "Bearer sk-provider",
        },
      }),
    );
    expect(result).toEqual({
      baseUrl: "https://example.test/v1",
      modelCatalog: [
        { id: "gpt-5.3-codex", label: "GPT-5.3 Codex", raw: { id: "gpt-5.3-codex", name: "GPT-5.3 Codex" } },
        { id: "gpt-5.4", label: "gpt-5.4", raw: { id: "gpt-5.4" } },
      ],
    });
  });
});