using System;
using InABox.Core;

namespace Comal.Classes
{
    
    public enum LeaveRequestApprovalStatus
    {
        Approved,
        NotYetApproved,
        Rejected
    }
    
    public class LeaveRequestApproval : Entity, ISequenceable, IRemotable, IPersistent, ILicense<HumanResourcesLicense>
    {
        private class EmployeeLookup : LookupDefinitionGenerator<Employee, LeaveRequestApproval>
        {
            public override Filter<Employee>? DefineFilter(LeaveRequestApproval[] items)
            {
                return new Filter<Employee>(x => x.ID).NotInList(items.ToArray(x => x.Employee.ID));
            }

            public override Columns<LeaveRequestApproval> DefineFilterColumns()
            {
                return base.DefineFilterColumns().Add(x => x.Employee.ID);
            }
        }
        [EditorSequence(1)]
        [EntityRelationship(DeleteAction.Cascade)]
        [LookupDefinition(typeof(EmployeeLookup))]
        public EmployeeLink Employee { get; set; }

        [NullEditor]
        [EntityRelationship(DeleteAction.Cascade)]
        public LeaveRequestLink LeaveRequest { get; set; }

        [EditorSequence(2)] 
        public LeaveRequestApprovalStatus Status { get; set; } = LeaveRequestApprovalStatus.NotYetApproved;
        
        [EditorSequence(3)]
        public string Notes { get; set; }

        [NullEditor]
        public bool IsCustom { get; set; }

        [NullEditor]
        public long Sequence { get; set; }

        static LeaveRequestApproval()
        {
            DefaultColumns.Add<LeaveRequestApproval>(x => x.LeaveRequest.EmployeeLink.Code);
            DefaultColumns.Add<LeaveRequestApproval>(x => x.LeaveRequest.EmployeeLink.Name);
            DefaultColumns.Add<LeaveRequestApproval>(x => x.Employee.Code);
            DefaultColumns.Add<LeaveRequestApproval>(x => x.Employee.Name);
            DefaultColumns.Add<LeaveRequestApproval>(x => x.Status);
            DefaultColumns.Add<LeaveRequestApproval>(x => x.Notes);
        }
    }

}