import assert from "node:assert/strict";
import { describe, it } from "node:test";
import { createExternalCsvPreview } from "../src/external-model/application/external-csv-preview.js";
import {
  externalCsvTestConfiguration,
  firstIfcGuid,
  quotedRevitCsv,
  utf8Bytes,
} from "./fixtures/revit-csv-fixtures.js";

describe("external CSV preview", () => {
  it("projects transport statistics and mapped object source values without writes", () => {
    const configuration = structuredClone(externalCsvTestConfiguration);
    configuration.additionalSourceMappings.push({
      sourceColumn: "Raumname",
      targetField: "sourceRoomLabel",
    });
    // The additional mapping intentionally needs a distinct source column in
    // persisted configuration, so use a separately named synthetic header.
    configuration.additionalSourceMappings[0].sourceColumn = "Zusatzwert";
    const csv = quotedRevitCsv
      .replace('"Anzahl";"IfcGUID"', '"Anzahl";"Zusatzwert";"IfcGUID"')
      .replaceAll(';"2";"0Ab', ';"2";"A";"0Ab')
      .replaceAll(';"1";"1Ab', ';"1";"B";"1Ab')
      .replaceAll(';"1";""', ';"1";"C";""')
      .replaceAll(';"";""\r\n', ';"";"";""\r\n');

    const preview = createExternalCsvPreview({
      fileName: "export.csv",
      bytes: utf8Bytes(csv, true),
      configuration,
    });

    assert.equal(preview.fileName, "export.csv");
    assert.equal(preview.headerRowNumber, 2);
    assert.equal(preview.rowCount, 7);
    assert.equal(preview.objectCount, 2);
    assert.equal(preview.passthroughCount, 2);
    assert.equal(preview.nonEmptyPassthroughCount, 1);
    assert.equal(preview.suspectObjectCount, 1);
    assert.deepEqual(preview.suspectRowNumbers, [6]);
    assert.match(preview.sha256, /^[a-f0-9]{64}$/);
    assert.deepEqual(preview.objects[0], {
      rowNumber: 4,
      ifcGuid: firstIfcGuid,
      roomNumber: "01/101",
      roomName: "Technik",
      familyAndType: "Steckdose: Doppelsteckdose",
      selectionMarker: "Arbeitsplatz",
      circuitIdentifier: "UV_AV_01-2F1",
      power: "120,5",
      quantity: "2",
      additionalSourceValues: { sourceRoomLabel: "A" },
    });
  });
});