using InABox.Core;
using System;

namespace Comal.Classes
{
    public class LeaveRequestFormLookups : DigitalFormInstanceLookups<LeaveRequest, LeaveRequestLink, LeaveRequestForm> { }

    public class DigitalFormLeaveRequestLookup : LookupDefinitionGenerator<DigitalForm, LeaveRequest>
    {
        public override Filter<DigitalForm> DefineFilter(LeaveRequest[] items)
        {
            var filter =
                LookupFactory.DefineLookupFilter<LeaveRequestForm, DigitalForm, DigitalFormLink>(x => x.Form,
                    Array.Empty<LeaveRequestForm>())
                ?? new Filter<DigitalForm>().All();

            foreach (var leaveRequest in items)
            {
                filter.And(x => x.ID).InQuery(
                    new Filter<EmployeeDigitalForm>(x => x.Employee.ID).IsEqualTo(leaveRequest.EmployeeLink.ID),
                    x => x.Form.ID);
            }

            return filter;
        }

        public override Columns<LeaveRequest> DefineFilterColumns()
            => new Columns<LeaveRequest>(x => x.EmployeeLink.ID);
    }

    public class DigitalFormLeaveRequestFormLookup : LookupDefinitionGenerator<DigitalForm, LeaveRequestForm>
    {
        public override Filter<DigitalForm> DefineFilter(LeaveRequestForm[] items)
        {
            return new Filter<DigitalForm>(x => x.Active).IsEqualTo(true).And(x => x.AppliesTo)
                .IsEqualTo("LeaveRequest");
        }

        public override Columns<LeaveRequestForm> DefineFilterColumns()
            => new Columns<LeaveRequestForm>();
    }
}