const fs = require('fs');
const path = require('path');

const PROJECT_DIR = process.env.PROJECT_DIR || path.resolve(__dirname, '..', '..');
const CONTENT_PATH = process.env.CONTENT_PATH || path.join(PROJECT_DIR, 'content', 'site.json');
const THEME_PATH = process.env.THEME_PATH || path.join(PROJECT_DIR, 'content', 'theme.json');

function readJson(filePath) {
  return JSON.parse(fs.readFileSync(filePath, 'utf8'));
}

function writeJson(filePath, data) {
  const tmpPath = `${filePath}.tmp`;
  fs.writeFileSync(tmpPath, JSON.stringify(data, null, 2) + '\n', 'utf8');
  fs.renameSync(tmpPath, filePath);
}

module.exports = {
  readContent: () => readJson(CONTENT_PATH),
  writeContent: (data) => writeJson(CONTENT_PATH, data),
  readTheme: () => readJson(THEME_PATH),
  writeTheme: (data) => writeJson(THEME_PATH, data),
  CONTENT_PATH,
  THEME_PATH,
  PROJECT_DIR,
};