import { describe, expect, it } from "bun:test";

import { parseAppOptions, resolveHomeAssistantTimeZone } from "./config";

describe("SolarEdge Optimizer Data App config", () => {
  it("parses the required Home Assistant App options", () => {
    expect(
      parseAppOptions({
        username: " owner@example.com ",
        password: "portal-secret",
        site_id: "4886699",
        poll_interval_minutes: 10,
      }),
    ).toEqual({
      username: "owner@example.com",
      password: "portal-secret",
      siteId: "4886699",
      pollIntervalMinutes: 10,
    });
  });

  it("rejects missing credentials and unsafe polling intervals", () => {
    expect(() =>
      parseAppOptions({ password: "secret", site_id: "42" }),
    ).toThrow("username");
    expect(() =>
      parseAppOptions({
        username: "owner@example.com",
        password: "secret",
        site_id: "42",
        poll_interval_minutes: 5,
      }),
    ).toThrow("10 to 1440");
  });

  it("reads the Home Assistant time zone from the Supervisor", async () => {
    const timeZone = await resolveHomeAssistantTimeZone({
      supervisorToken: "supervisor-token",
      fetchImplementation: async (input, init) => {
        expect(String(input)).toBe("http://supervisor/info");
        expect(new Headers(init?.headers).get("authorization")).toBe(
          "Bearer supervisor-token",
        );
        return Response.json({ data: { timezone: "Europe/Berlin" } });
      },
    });
    expect(timeZone).toBe("Europe/Berlin");
  });
});