namespace Yavsc.Helpers
{
    using System.Collections.Generic;
    using System.Linq;
    using Microsoft.EntityFrameworkCore;
    using Yavsc.Abstract.Workflow;
    using Yavsc.Billing;
    using Yavsc.Models;
    using Yavsc.Models.Billing;
    using Yavsc.Models.Haircut;
    using Yavsc.Models.Workflow;
    using Yavsc.Services;
    using Yavsc.ViewModels.FrontOffice;

    public static class WorkflowHelpers
    {
        public static async Task<List<PerformerProfileViewModel>>
        ListPerformersAsync(this ApplicationDbContext context,
        IBillingService billing,
        string actCode)
        {

            var actors = context.Performers
           .Include(p => p.Activity)
           .Include(p => p.Performer)
           .Where(p => p.Active && p.Activity.Any(u => u.DoesCode == actCode)).OrderBy(x => x.Rate)
           .ToArray();

            List<PerformerProfileViewModel> result = new();
            foreach (var a in actors)
            {
                var settings = await billing.GetPerformersSettingsAsync(actCode, a.PerformerId);
                result.Add(new PerformerProfileViewModel(a, actCode, settings));
            }

            return result;
        }

        public static void RegisterBilling<T>(string code, Func<ApplicationDbContext, long,
        IDecidableQuery> getter) where T : IBillable
        {
            if (BillingService.Billing.ContainsKey(code)
                || BillingService.GlobalBillingMap.ContainsKey(code))
            {
                throw new InvalidOperationException("Billing setup");
            }
            BillingService.Billing.Add(code, getter);
            BillingService.GlobalBillingMap.Add(typeof(T).Name, code);
        }

        public static void ConfigureBillingService()
        {
            foreach (var a in System.AppDomain.CurrentDomain.GetAssemblies())
            {
                foreach (var c in a.GetTypes())
                {
                    if (c.IsClass && !c.IsAbstract &&
                        c.GetInterface("ISpecializationSettings") != null)
                    {
                        Config.ProfileTypes.Add(c);
                    }
                }
            }

            foreach (var propertyInfo in typeof(ApplicationDbContext).GetProperties())
            {
                foreach (var attr in propertyInfo.CustomAttributes)
                {
                    // something like a DbSet?
                    if (typeof(Yavsc.Attributes.ActivitySettingsAttribute).IsAssignableFrom(attr.AttributeType))
                    {
                        BillingService.UserSettings.Add(propertyInfo);
                    }
                }
            }

            RegisterBilling<HairCutQuery>(BillingCodes.Brush, new Func<ApplicationDbContext, long, IDecidableQuery>
            ((db, id) =>
            {
                var query = db.HairCutQueries.Include(q => q.Prestation).Include(q => q.Regularisation).Single(q => q.Id == id);
                query.SelectedProfile = db.BrusherProfile.Single(b => b.UserId == query.PerformerId);
                return query;
            }));

            RegisterBilling<HairMultiCutQuery>(BillingCodes.MBrush, new Func<ApplicationDbContext, long, IDecidableQuery>
            ((db, id) => db.HairMultiCutQueries.Include(q => q.Regularisation).Single(q => q.Id == id)));

            RegisterBilling<RdvQuery>(BillingCodes.Rdv, new Func<ApplicationDbContext, long, IDecidableQuery>
            ((db, id) => db.RdvQueries.Include(q => q.Regularisation).Single(q => q.Id == id)));
        }

    }
}