using System;
using System.Runtime.InteropServices;

namespace Foodsoft.Alpm
{
    public readonly struct Backup : IEquatable<Backup>
    {
        public string Name { get; }
        public string Hash { get; }

        public bool Equals(Backup other) => Name == other.Name && Hash == other.Hash;
        public override bool Equals(object? obj) => obj is Backup other && Equals(other);
        public override int GetHashCode() => HashCode.Combine(Name, Hash);

        [StructLayout(LayoutKind.Sequential)]
        private readonly unsafe struct NativeBackup
        {
            internal readonly sbyte* name;
            internal readonly sbyte* hash;
        }

        internal unsafe Backup(IntPtr ptr)
        {
            var native = (NativeBackup*) ptr;
            Name = new string(native->name);
            Hash = new string(native->hash);
        }
    }
}