isn/src/isnd/Data/Packages/Package.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using isnd.Data.Catalog;
using isnd.Interfaces;
using Newtonsoft.Json;

namespace isnd.Data.Packages
{
    public class Package : IObject
    {
        [Key][Required]
        [StringLength(1024)]
        public string Id { get; set; }

        [Required]
        [ForeignKey("Owner")]
        public string OwnerId { get; set; }

        [StringLength(1024)]
        public string Description { get; set; }

        public bool Public { get ; set;}

        [JsonIgnore]
        virtual public ApplicationUser Owner { get; set; }

        [JsonIgnore]

        public virtual List<PackageVersion> Versions { get; set; }

        /// <summary>
        /// Latest version at put, posted, 
        /// or even deletion when no more active version.
        /// </summary>
        /// <value></value>
        [Required][JsonIgnore]
        public long CommitNId { get; set ; }

        [NotMapped]
        public string CommitId { get => CommitNId.ToString(); }

        [ForeignKey("CommitNId")]

        public virtual Commit LatestVersion{ get; set; }
        public DateTime CommitTimeStamp { get; set; }
        /// <summary>
        /// Returns the leaf
        /// </summary>
        /// <param name="bid">base url tu use for building the id property</param>
        /// <returns></returns>
        public RegistrationLeaf ToLeave(string bid)
        {
            if (Versions.Count == 0) throw new Exception("NO VERSION");
            var v = Versions.First();
            RegistrationLeaf leave = new RegistrationLeaf
            {
                Id = bid + Id + ".json",
                PackageContent = v.NugetLink,
                Entry = new CatalogEntry
                {
                    Id = bid + Id + ".json",
                    idp = Id,
                    version = v.FullString,
                    authors = $"{Owner.FullName} <${Owner.Email}>"
                }
            };
            return leave;
        }
    }
}