import { describe, it, expect } from "vitest";
import { DEFAULT_API_BASE, ENV_API_KEY, PROVIDER_NAME, resolveApiBase } from "../../src/env.js";

describe("constants", () => {
  it("exports correct provider name", () => {
    expect(PROVIDER_NAME).toBe("qw");
  });

  it("exports correct env var name", () => {
    expect(ENV_API_KEY).toBe("QWENCLOUD_API_KEY");
  });

  it("exports correct default API base", () => {
    expect(DEFAULT_API_BASE).toBe(
      "https://token-plan.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1",
    );
  });
});

describe("resolveApiBase", () => {
  it("returns default when env not set", () => {
    expect(resolveApiBase({})).toBe(DEFAULT_API_BASE);
  });

  it("returns override from QWENCLOUD_API_BASE", () => {
    expect(
      resolveApiBase({
        QWENCLOUD_API_BASE: "https://custom.example.com/v1",
      }),
    ).toBe("https://custom.example.com/v1");
  });

  it("removes trailing slashes from override", () => {
    expect(
      resolveApiBase({
        QWENCLOUD_API_BASE: "https://api.example.com/v1/",
      }),
    ).toBe("https://api.example.com/v1");
  });

  it("trims whitespace from override", () => {
    expect(
      resolveApiBase({
        QWENCLOUD_API_BASE: "  https://api.example.com/v1  ",
      }),
    ).toBe("https://api.example.com/v1");
  });

  it("falls back to default when QWENCLOUD_API_BASE is empty string", () => {
    expect(resolveApiBase({ QWENCLOUD_API_BASE: "" })).toBe(DEFAULT_API_BASE);
  });
});