import '../../res/misc.dart';

class Disk {
  final String path;
  final String loc;
  final int usedPercent;
  final String used;
  final String size;
  final String avail;

  const Disk({
    required this.path,
    required this.loc,
    required this.usedPercent,
    required this.used,
    required this.size,
    required this.avail,
  });
}

List<Disk> parseDisk(String raw) {
  final list = <Disk>[];
  final items = raw.split('\n');
  items.removeAt(0);
  var pathCache = '';
  for (var item in items) {
    if (item.isEmpty) {
      continue;
    }
    final vals = item.split(numReg);
    if (vals.length == 1) {
      pathCache = vals[0];
      continue;
    }
    if (pathCache != '') {
      vals[0] = pathCache;
      pathCache = '';
    }
    try {
      list.add(Disk(
        path: vals[0],
        loc: vals[5],
        usedPercent: int.parse(vals[4].replaceFirst('%', '')),
        used: vals[2],
        size: vals[1],
        avail: vals[3],
      ));
    } catch (e) {
      continue;
    }
  }
  return list;
}

/// Issue 88
///
/// Due to performance issues,
/// if there is no `Disk.loc == '/' || Disk.loc == '/sysroot'`,
/// return the first [Disk] of [disks].
///
/// If we find out the biggest [Disk] of [disks],
/// the fps may lower than 60.
Disk? findRootDisk(List<Disk> disks) {
  if (disks.isEmpty) return null;
  final roots = disks.where((element) => element.loc == '/');
  if (roots.isEmpty) {
    final sysRoots = disks.where((element) => element.loc == '/sysroot');
    if (sysRoots.isEmpty) {
      return disks.first;
    } else {
      return sysRoots.first;
    }
  } else {
    return roots.first;
  }
}