using System;
using System.Linq;
using InABox.Core;

namespace Comal.Classes
{
    public class JobFormLookups : DigitalFormInstanceLookups<Job,JobLink,JobForm> { }

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

        public override Columns<Job> DefineFilterColumns()
            => Columns.None<Job>();
    }

    public class DigitalFormJobFormLookup : LookupDefinitionGenerator<DigitalForm, JobForm>
    {
        public override Filter<DigitalForm> DefineFilter(JobForm[] items)
        {
            if (items == null || items.Length != 1)
                return new Filter<DigitalForm>(x => x.ID).IsEqualTo(CoreUtils.FullGuid);
            return new Filter<DigitalForm>(x => x.ID).InQuery(
                new Filter<JobFormDefinition>(x => x.Job.ID).IsEqualTo(items.First().Parent.ID),
                x => x.Form.ID);
        }

        public override Columns<JobForm> DefineFilterColumns()
            => Columns.None<JobForm>().Add(x => x.Parent.ID);
    }
}