using Comal.Classes;
using InABox.Core;
using InABox.Database;

namespace PRS.Shared
{
    public class Update_7_31 : DatabaseUpdateScript
    {
        public override VersionNumber Version => new VersionNumber(7, 31);

        private static void Migrate<T>()
            where T : Entity, IPersistent, IPostable, new()
        {
            List<T> items;
            do
            {
                items = DbFactory.NewProvider(Logger.Main).Query<T>(
                    new Filter<T>(x => x.PostedStatus).IsEqualTo(null),
                    Columns.None<T>().Add(x => x.ID).Add(x => x.PostedStatus),
                    null, 
                    CoreRange.Database(1000)
                ).ToObjects<T>().ToList();
                foreach (var item in items)
                {
                    item.PostedStatus = PostedStatus.NeverPosted;
                    item.OriginalValueList.TryAdd("PostedStatus", null);
                }
                DbFactory.NewProvider(Logger.Main).Save(items);
                Logger.Send(LogType.Information, "", $"{items.Count} {typeof(T).Name}s processed");
            } while (items.Count > 0);
        }

        public override bool Update()
        {
            Migrate<Bill>();
            Migrate<Invoice>();
            Migrate<PurchaseOrder>();
            Migrate<TimeSheet>();
            return true;
        }
    }
}