using System;
using System.Collections.Generic;
using System.Linq;
using BoundaryLab.Domain;
using BoundaryLab.Application;

namespace BoundaryLab.Infrastructure;

public sealed class MemoryReservationStore(InventoryState initial) : IReservationStore
{
    private readonly List<ReservationNotice> outbox = new();
    public InventoryState Current { get; private set; } = initial;
    public IReadOnlyList<ReservationNotice> Outbox => outbox.ToArray();
    public bool TryCommit(InventoryState expected, InventoryState next, ReservationNotice notice)
    {
        if (Current.Version != expected.Version) return false;
        Current = next; outbox.Add(notice); return true;
    }
}