import { describe, expect, it, vi } from "vitest";
import { fetchOpenAIAdminUsage, resolveOpenAIUsageAuth } from "./usage.js";

function requestUrl(input: string | URL | Request): URL {
  return new URL(input instanceof Request ? input.url : input);
}

describe("OpenAI provider usage", () => {
  it("aggregates provider-reported costs, tokens, models, and categories", async () => {
    const fetchFn = vi.fn(async (input: string | URL | Request, _init?: RequestInit) => {
      const url = requestUrl(input);
      if (url.pathname.endsWith("/organization/costs")) {
        return new Response(
          JSON.stringify({
            data: [
              {
                start_time: 1_783_296_000,
                end_time: 1_783_382_400,
                results: [{ amount: { value: "12.34", currency: "usd" }, line_item: "Responses" }],
              },
            ],
            has_more: false,
          }),
          { status: 200 },
        );
      }
      return new Response(
        JSON.stringify({
          data: [
            {
              start_time: 1_783_296_000,
              end_time: 1_783_382_400,
              results: [
                {
                  input_tokens: 1_000,
                  input_cached_tokens: 400,
                  output_tokens: 250,
                  num_model_requests: 8,
                  model: "gpt-5.5",
                },
              ],
            },
          ],
          has_more: false,
        }),
        { status: 200 },
      );
    });

    const result = await fetchOpenAIAdminUsage({
      apiKey: "sk-admin-test",
      projectId: "proj_test",
      timeoutMs: 5_000,
      fetchFn: fetchFn as typeof fetch,
      now: Date.parse("2026-07-06T12:00:00Z"),
      periodDays: 2,
    });

    expect(result).toMatchObject({
      provider: "openai",
      plan: "Admin API · proj_test",
      billing: [{ type: "spend", amount: 12.34, unit: "USD", period: "2d" }],
      costHistory: {
        unit: "USD",
        periodDays: 2,
        scope: "Project proj_test",
        daily: [
          {
            date: "2026-07-06",
            amount: 12.34,
            requests: 8,
            inputTokens: 600,
            cacheReadTokens: 400,
            outputTokens: 250,
            totalTokens: 1_250,
          },
        ],
        models: [
          {
            name: "gpt-5.5",
            requests: 8,
            inputTokens: 600,
            cacheReadTokens: 400,
            totalTokens: 1_250,
          },
        ],
        categories: [{ name: "Responses", amount: 12.34 }],
      },
    });
    expect(fetchFn).toHaveBeenCalledTimes(2);
    for (const [input, init] of fetchFn.mock.calls) {
      const url = requestUrl(input);
      expect(url.searchParams.get("project_ids")).toBe("proj_test");
      expect(url.searchParams.get("bucket_width")).toBe("1d");
      expect((init as RequestInit).headers).toMatchObject({
        Authorization: "Bearer sk-admin-test",
      });
    }
  });

  it("reports when organization usage rejects a non-admin key", async () => {
    const result = await fetchOpenAIAdminUsage({
      apiKey: "sk-proj-test",
      timeoutMs: 5_000,
      fetchFn: vi.fn(async () => new Response("", { status: 403 })) as typeof fetch,
    });
    expect(result.error).toBe("Admin API key required");
  });

  it("prefers an explicit admin key over ChatGPT OAuth", async () => {
    const result = await resolveOpenAIUsageAuth({
      config: {
        models: {
          providers: {
            openai: {
              baseUrl: "https://proxy.example.test/v1",
              models: [],
            },
          },
        },
      },
      env: { OPENAI_ADMIN_KEY: "sk-admin-explicit" },
      provider: "openai",
      resolveApiKeyFromConfigAndStore: () => "sk-proj-fallback",
      resolveOAuthToken: async () => ({ token: "oauth-token" }),
    });
    expect(result).toEqual({
      token: 'openclaw:openai-admin:v1:{"token":"sk-admin-explicit"}',
    });
  });

  it("does not repurpose inference credentials for organization usage", async () => {
    const resolveCandidates = vi.fn(async () => ["sk-admin-secretref"]);
    const result = await resolveOpenAIUsageAuth({
      config: {},
      env: {},
      provider: "openai",
      resolveApiKeyFromConfigAndStore: () => "sk-proj-inference",
      resolveApiKeyCandidatesFromConfigAndStore: resolveCandidates,
      resolveOAuthToken: async () => null,
    });

    expect(result).toEqual({ handled: true });
    expect(resolveCandidates).not.toHaveBeenCalled();
  });
});