using Microsoft.AspNetCore.Identity;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Security.Claims;

namespace MagMan.Data.Admin
{
    /// <summary>
    /// Classe generalizzaizone identity (user + roles + claims) x gestione semplificata in editing
    /// 
    /// per deserializzare i claims vedere questi link:
    /// - https://stackoverflow.com/questions/63634652/c-sharp-newtonsoft-deserialize-custom-object-with-claims
    /// - https://stackoverflow.com/questions/28155169/how-to-programmatically-choose-a-constructor-during-deserialization/28155770#28155770
    /// </summary>
    public class UserData
    {
        #region Public Properties

        [JsonProperty(ItemConverterType = typeof(ClaimConverter))]
        public List<Claim> Claims { get; set; } = new List<Claim>();

        public IdentityUser Identity { get; set; } = new IdentityUser();

        public List<string> Roles { get; set; } = new List<string>();

        #endregion Public Properties
    }

    class ClaimConverter : JsonConverter
    {
        public override bool CanConvert(Type objectType)
        {
            return (objectType == typeof(System.Security.Claims.Claim));
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            JObject jo = JObject.Load(reader);
            string type = (string)jo["Type"];
            string value = (string)jo["Value"];
            string valueType = (string)jo["ValueType"];
            string issuer = (string)jo["Issuer"];
            string originalIssuer = (string)jo["OriginalIssuer"];
            return new Claim(type, value, valueType, issuer, originalIssuer);
        }

        public override bool CanWrite
        {
            get { return false; }
        }

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            throw new NotImplementedException();
        }
    }

    /// <summary>
    /// Classe x gestione dei claim come record editabile
    /// </summary>
    public class ClaimRec
    {
        public int Id { get; set; } = 0;
        public string Type { get; set; } = "";
        public string Value { get; set; } = "";
        public ClaimRec(Claim currItem, int nId)
        {
            this.Id = nId;
            this.Type = currItem.Type;
            this.Value = currItem.Value;
        }
        public ClaimRec(string newType, string newValue, int nId)
        {
            this.Id = nId;
            this.Type = newType;
            this.Value = newValue;
        }
    }
}