using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using Kreta.Enums.ManualEnums;
using Kreta.Naplo.Domain.V3.Interfaces;
using Kreta.Naplo.Domain.V3.UniqueIdentifier;

namespace Kreta.Naplo.Domain.V3.Orarend
{
    public class OrarendElemRequest : IValidatableObject, IModelValidacio<OrarendElemRequest>
    {
        public OrarendElemRequest(string orarendElemUid)
        {
            OrarendElemUid = new OrarendElemUid(orarendElemUid);
        }

        public OrarendElemRequest(CalendarOraTypeEnum tipus, int id, DateTime datum)
        {
            OrarendElemUid = new OrarendElemUid(id, tipus, datum);
        }

        public Dictionary<Predicate<OrarendElemRequest>, string> ModelValidaciok => new Dictionary<Predicate<OrarendElemRequest>, string>
        {
            { x => x.OrarendElemUid != null
                && x.OrarendElemUid.Tipus != CalendarOraTypeEnum.OrarendiOra
                && x.OrarendElemUid.Tipus != CalendarOraTypeEnum.TanitasiOra
                && x.OrarendElemUid.Tipus != CalendarOraTypeEnum.UresOra
            , "Csak órarendi, tanítási és elmaradt óra kérhető le!" }
        };

        [Required]
        public OrarendElemUid OrarendElemUid { get; set; }

        public IEnumerable<ValidationResult> Validate(ValidationContext validationContext) => ModelValidaciok.Where(x => x.Key.Invoke(this)).AsEnumerable().Select(x => new ValidationResult(x.Value));
    }
}