import { describe, expect, it, vi } from "vitest";
import { buildCodexProvider, buildCodexProviderCatalog } from "./provider.js";

describe("codex provider", () => {
  it("maps Codex app-server models to a Codex provider catalog", async () => {
    const listModels = vi.fn(async () => ({
      models: [
        {
          id: "gpt-5.4",
          model: "gpt-5.4",
          displayName: "gpt-5.4",
          hidden: false,
          inputModalities: ["text", "image"],
          supportedReasoningEfforts: ["low", "medium", "high", "xhigh"],
        },
        {
          id: "hidden-model",
          model: "hidden-model",
          hidden: true,
          inputModalities: ["text"],
          supportedReasoningEfforts: [],
        },
      ],
    }));

    const result = await buildCodexProviderCatalog({
      env: {},
      listModels,
      pluginConfig: { discovery: { timeoutMs: 1234 } },
    });

    expect(listModels).toHaveBeenCalledWith({ limit: 100, timeoutMs: 1234 });
    expect(result.provider).toMatchObject({
      auth: "token",
      api: "openai-codex-responses",
      models: [
        {
          id: "gpt-5.4",
          name: "gpt-5.4",
          reasoning: true,
          input: ["text", "image"],
          compat: { supportsReasoningEffort: true },
        },
      ],
    });
  });

  it("keeps a static fallback catalog when discovery is disabled", async () => {
    const listModels = vi.fn();

    const result = await buildCodexProviderCatalog({
      env: {},
      listModels,
      pluginConfig: { discovery: { enabled: false } },
    });

    expect(listModels).not.toHaveBeenCalled();
    expect(result.provider.models.map((model) => model.id)).toEqual([
      "gpt-5.4",
      "gpt-5.4-mini",
      "gpt-5.2",
    ]);
  });

  it("resolves arbitrary Codex app-server model ids through the codex provider", () => {
    const provider = buildCodexProvider();

    const model = provider.resolveDynamicModel?.({
      provider: "codex",
      modelId: " arcanine ",
      modelRegistry: { find: () => null },
    } as never);

    expect(model).toMatchObject({
      id: "arcanine",
      provider: "codex",
      api: "openai-codex-responses",
      baseUrl: "https://chatgpt.com/backend-api",
      input: ["text", "image"],
    });
  });

  it("treats o4 ids as reasoning-capable Codex models", () => {
    const provider = buildCodexProvider();

    const model = provider.resolveDynamicModel?.({
      provider: "codex",
      modelId: "o4-mini",
      modelRegistry: { find: () => null },
    } as never);

    expect(model).toMatchObject({
      id: "o4-mini",
      reasoning: true,
      compat: { supportsReasoningEffort: true },
    });
    expect(provider.supportsXHighThinking?.({ provider: "codex", modelId: "o4-mini" })).toBe(true);
  });

  it("declares synthetic auth because the harness owns Codex credentials", () => {
    const provider = buildCodexProvider();

    expect(provider.resolveSyntheticAuth?.({ provider: "codex" })).toEqual({
      apiKey: "codex-app-server",
      source: "codex-app-server",
      mode: "token",
    });
  });
});