import 'dart:io';

import 'package:halkyon_meditate_server/src/library/library_manifest.dart';

/// Checks an operator's library folder before it is deployed (ADR 0038,
/// D16), as the server reads it: what it would serve, and every item,
/// course and category it would refuse, with the reason. Exits 1 where
/// anything is refused, 64 without a folder.
///
///     dart run bin/check_library.dart /srv/meditate-library
void main(List<String> args) {
  if (args.length != 1) {
    stderr.writeln('Usage: dart run bin/check_library.dart <library folder>');
    exitCode = 64;
    return;
  }
  final library = readLibrary(Directory(args.single));
  for (final problem in library.problems) {
    stdout.writeln('✗ $problem');
  }
  stdout.writeln(
    '${library.items.length} items, ${library.courses.length} courses and '
    '${library.categories.length} categories of its own would be served; '
    '${library.problems.length} problems.',
  );
  if (library.problems.isNotEmpty) {
    exitCode = 1;
  }
}