using System;
using System.Linq;

namespace FrostFS.SDK;

public class FrostFsPlacementPolicy(bool unique, params FrostFsReplica[] replicas) : IComparable<FrostFsPlacementPolicy>
{
    public FrostFsReplica[] Replicas { get; private set; } = replicas;
    public bool Unique { get; private set; } = unique;

    public int CompareTo(FrostFsPlacementPolicy other)
    {
        var notEqual = other == null
            || Unique != other.Unique
            || Replicas.Length != other.Replicas.Length;

        if (notEqual)
            return 1;

        foreach (var replica in Replicas)
        {
            if (!other!.Replicas.Any(r => r.Count == replica.Count && r.Selector == replica.Selector))
                return 1;
        }

        return 0;
    }
}