import fs from 'node:fs';
import path from 'node:path';
import { normalizeWorkspaceRelativePath } from './mindspace-pages.mjs';
import { resolvePublishDir } from './user-publish.mjs';

export { normalizeWorkspaceRelativePath };

export async function readWorkspacePublishHtml(h5Root, userId, relativePath) {
  const normalized = normalizeWorkspaceRelativePath(relativePath);
  if (!h5Root || !userId || !normalized) return null;
  const filePath = path.join(resolvePublishDir(h5Root, { id: userId }), ...normalized.split('/'));
  try {
    return await fs.promises.readFile(filePath, 'utf8');
  } catch {
    return null;
  }
}

export function resolvePageWorkspaceRelativePath(snapshot) {
  if (!snapshot || typeof snapshot !== 'object') return null;
  return normalizeWorkspaceRelativePath(snapshot.relative_path) || null;
}

export function resolveAssetWorkspaceRelativePath({
  categoryCode = null,
  originalFilename = null,
  explicitPath = null,
} = {}) {
  const explicit = normalizeWorkspaceRelativePath(explicitPath);
  if (explicit) return explicit;
  const filename = String(originalFilename ?? '')
    .replace(/\\/g, '/')
    .replace(/^\/+/, '');
  if (!filename) return null;
  if (/^(?:public|oa)\//i.test(filename)) {
    return normalizeWorkspaceRelativePath(filename);
  }
  const category = String(categoryCode ?? '').trim();
  if (category === 'public' || category === 'oa') {
    return normalizeWorkspaceRelativePath(`${category}/${filename}`);
  }
  return null;
}