wtr/tests/warning-regions.test.ts

import { describe, expect, it } from "vitest";

import { getCountyTerytForLocation, warningMatchesCounty, warningMatchesLocalSelection } from "@/lib/warning-regions";
import type { WeatherWarning } from "@/types/imgw";
import type { SelectedLocation } from "@/types/location";

function warning(overrides: Partial<WeatherWarning> = {}): WeatherWarning {
  return {
    id: "meteo-1",
    kind: "meteo",
    level: 1,
    title: "Storm",
    description: null,
    comment: null,
    validFrom: null,
    validTo: null,
    publishedAt: null,
    probability: null,
    areas: [],
    terytCodes: [],
    provinces: ["mazowieckie"],
    office: null,
    ...overrides,
  };
}

function location(overrides: Partial<SelectedLocation> = {}): SelectedLocation {
  return {
    name: "Warszawa",
    province: "mazowieckie",
    district: "Warszawa",
    country: "Poland",
    countryCode: "PL",
    admin1: "Mazowieckie",
    admin2: "Warszawa",
    timezone: "Europe/Warsaw",
    region: "PL",
    countyTeryt: "1465",
    latitude: 52.23,
    longitude: 21.01,
    stationId: null,
    stationName: null,
    distanceKm: null,
    ...overrides,
  };
}

describe("warning region matching", () => {
  it("resolves Mazowieckie county codes from district names", () => {
    expect(getCountyTerytForLocation("mazowieckie", "Warszawa", null)).toBe("1465");
    expect(getCountyTerytForLocation("mazowieckie", "radomski", null)).toBe("1425");
  });

  it("matches meteorological warnings by county TERYT prefix", () => {
    const warsawWarning = warning({ terytCodes: ["146501"] });

    expect(warningMatchesCounty(warsawWarning, "1465")).toBe(true);
    expect(warningMatchesCounty(warsawWarning, "1425")).toBe(false);
  });

  it("uses county filtering before province fallback for selected locations", () => {
    const radomWarning = warning({ terytCodes: ["142501"] });

    expect(warningMatchesLocalSelection(radomWarning, "mazowieckie", location())).toBe(false);
    expect(warningMatchesLocalSelection(radomWarning, "mazowieckie", location({ countyTeryt: null }))).toBe(true);
  });
});