import assert from "node:assert/strict";
import { describe, it } from "node:test";
import {
  inferSectionKeyFromEquipmentIdentifier,
  inferSectionKeyFromLegacyInput,
  normalizeCircuitNumber,
} from "../src/domain/services/legacy-consumer-migration-planner.js";

describe("legacy consumer migration planner", () => {
  it("normalizes valid circuit numbers and rejects invalid formats", () => {
    assert.equal(normalizeCircuitNumber(" -2f12 "), "-2F12");
    assert.equal(normalizeCircuitNumber("2F12"), null);
    assert.equal(normalizeCircuitNumber(""), null);
    assert.equal(normalizeCircuitNumber(null), null);
  });

  it("infers section from equipment identifier prefix", () => {
    assert.equal(inferSectionKeyFromEquipmentIdentifier("-1F4"), "lighting");
    assert.equal(inferSectionKeyFromEquipmentIdentifier("-2F8"), "single_phase");
    assert.equal(inferSectionKeyFromEquipmentIdentifier("-3F1"), "three_phase");
    assert.equal(inferSectionKeyFromEquipmentIdentifier("-9F1"), null);
  });

  it("infers section from category/phase when circuit number is missing", () => {
    assert.equal(
      inferSectionKeyFromLegacyInput({
        id: "1",
        circuitNumber: null,
        category: "Beleuchtung",
        phaseType: null,
        phaseCount: null,
      }),
      "lighting"
    );
    assert.equal(
      inferSectionKeyFromLegacyInput({
        id: "2",
        circuitNumber: null,
        category: null,
        phaseType: "three-phase",
        phaseCount: null,
      }),
      "three_phase"
    );
    assert.equal(
      inferSectionKeyFromLegacyInput({
        id: "3",
        circuitNumber: null,
        category: null,
        phaseType: null,
        phaseCount: null,
      }),
      null
    );
  });
});