import { AppConfig } from "../src/config/AppConfig";

describe("AppConfig", () => {
  it("loads required fields with defaults", () => {
    const config = AppConfig.fromEnv({
      ACI_EMAIL: "grower@example.com",
      ACI_PASSWORD: "super-secret"
    });

    expect(config.aciHost).toBe("http://www.acinfinityserver.com");
    expect(config.pollIntervalSeconds).toBe(30);
    expect(config.listenPort).toBe(9108);
    expect(config.requestTimeoutMs).toBe(10000);
    expect(config.logLevel).toBe("info");
  });

  it("throws when required values are missing", () => {
    expect(() => AppConfig.fromEnv({})).toThrow("ACI_EMAIL is required");
    expect(() =>
      AppConfig.fromEnv({
        ACI_EMAIL: "x",
        ACI_PASSWORD: "",
        POLL_INTERVAL_SECONDS: "30"
      })
    ).toThrow("ACI_PASSWORD is required");
  });

  it("validates numeric ranges", () => {
    expect(() =>
      AppConfig.fromEnv({
        ACI_EMAIL: "x",
        ACI_PASSWORD: "y",
        POLL_INTERVAL_SECONDS: "4"
      })
    ).toThrow("POLL_INTERVAL_SECONDS must be between 5 and 600");
  });
});