import { readFile, writeFile } from 'node:fs/promises';
import path from 'node:path';
import { assertValidScoreCalibrations } from './score-calibration-validation.mjs';

const calibrationPath = path.resolve('data/score-calibrations.json');
const catalogPath = path.resolve('src/lib/data/exact-chart-catalog.json');
const chartDirectory = path.resolve('static/data/charts');

const calibrations = JSON.parse(await readFile(calibrationPath, 'utf8'));
const catalog = JSON.parse(await readFile(catalogPath, 'utf8'));
const catalogRows = Array.isArray(catalog) ? catalog : catalog.charts;

await assertValidScoreCalibrations(calibrations, { chartDirectory });

for (const calibration of calibrations.charts) {
  const difficulty = calibration.difficulty.toLowerCase();
  const catalogRow = catalogRows.find((row) =>
    row.songId === calibration.songId && row.difficulty.toLowerCase() === difficulty
  );

  // Easy/Normal 실측도 보관하되 현재 생성 대상인 Hard/Expert만 즉시 동기화한다.
  if (!catalogRow) continue;

  // 공식 기반 채보는 실측 보정으로 덮어쓰지 않는다. 실측은 검증 자료로 유지한다.
  if (catalogRow.scoreCalibrationSource === 'formula-v1') continue;

  catalogRow.scoreRatio = calibration.scoreRatio;
  catalogRow.scoreCalibrationSource = 'measured';

  const chartPath = path.join(chartDirectory, `${calibration.songId}.${difficulty}.json`);
  const chart = JSON.parse(await readFile(chartPath, 'utf8'));
  chart.scoreRatio = calibration.scoreRatio;
  chart.scoreCalibrationSource = 'measured';
  await writeFile(chartPath, JSON.stringify(chart));
}

await writeFile(catalogPath, `${JSON.stringify(catalog, null, 2)}\n`);