using RestSharp;
using System;
using System.Collections.Generic;
using System.Linq;
using Tanshu.Accounts.Entities;

namespace Tanshu.Accounts.Repository
{
    public static class VoucherBI
    {
        public static Voucher Insert(Voucher voucher, bool updateTable)
        {
            var request = new RestRequest(Method.PUT);
            request.Resource = "Voucher.json";
            request.AddJsonBody(GetVoucherJson(voucher));
            request.AddQueryParameter("u", true.ToString());
            return JsonStore.Execute<Voucher>(request);
        }
        public static Guid? Update(Voucher voucher, bool updateTable)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "Voucher/{id}.json";
            request.AddParameter("id", voucher.VoucherID, ParameterType.UrlSegment);
            request.AddJsonBody(GetVoucherJson(voucher));
            request.AddQueryParameter("u", true.ToString());
            voucher = JsonStore.Execute<Voucher>(request);
            return voucher.Kots.Last().KotID;
        }

        public static Voucher Get(Guid id)
        {
            var request = new RestRequest();
            request.Resource = "Voucher/{id}.json";
            request.AddParameter("id", id, ParameterType.UrlSegment);
            return JsonStore.Execute<Voucher>(request);
        }
        public static Voucher Get(string billID)
        {
            var request = new RestRequest();
            request.Resource = "Voucher.json";
            request.AddQueryParameter("b", billID);
            return JsonStore.Execute<Voucher>(request);
        }

        public static void VoidBill(Guid voucherID, string reason, bool updateTable)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "Void/{id}.json";
            request.AddParameter("id", voucherID, ParameterType.UrlSegment);
            request.AddJsonBody(new { Reason = reason });
            request.AddQueryParameter("u", true.ToString());
            JsonStore.Execute<Voucher>(request);
        }

        public static Guid MergeKot(Guid kotID, Guid newVoucherID)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "MergeKot.json";
            request.AddJsonBody(new { KotID = kotID, NewVoucherID = newVoucherID });
            return JsonStore.Execute<Guid>(request);
        }
        public static Guid MergeTables(Guid voucherID, Guid newVoucherID)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "MergeTable.json";
            request.AddJsonBody(new { VoucherID = voucherID, NewVoucherID = newVoucherID });
            return JsonStore.Execute<Guid>(request);
        }
        public static Guid MoveKot(Guid kotID, Guid tableID)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "MoveKot.json";
            request.AddJsonBody(new { KotID = kotID, FoodTableID = tableID });
            return JsonStore.Execute<Guid>(request);
        }
        public static Guid MoveTable(Guid voucherID, Guid tableID)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "MoveTable.json";
            request.AddJsonBody(new { VoucherID = voucherID, FoodTableID = tableID });
            JsonStore.Execute(request);
            return voucherID;
        }

        public static void SplitBill(Guid oldVoucherID, Voucher first, Voucher second)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "Split/{id}.json";
            request.AddParameter("id", oldVoucherID, ParameterType.UrlSegment);
            request.AddJsonBody(new
            {
                One = GetVoucherJson(first),
                Two = GetVoucherJson(second)
            });
            JsonStore.Execute(request);
        }

        public static Voucher DiscountPrintedBill(Guid oldVoucherID, Voucher newVoucher)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "ReprintVoucher/{id}.json";
            request.AddParameter("id", oldVoucherID, ParameterType.UrlSegment);
            request.AddJsonBody(GetVoucherJson(newVoucher));
            return JsonStore.Execute<Voucher>(request);
        }

        public static void SettleVoucher(User user, Guid voucherID, IDictionary<SettleOption, decimal> values, bool updateTable)
        {
            var request = new RestRequest(Method.POST);
            request.Resource = "Settle/{id}.json";
            request.AddParameter("id", voucherID, ParameterType.UrlSegment);
            request.AddJsonBody(values.Select(x => new { Settled = x.Key, Amount = x.Value }));
            request.AddQueryParameter("u", true.ToString());
            JsonStore.Execute<Voucher>(request);
        }

        private static dynamic GetVoucherJson(Voucher voucher)
        {
            return new
            {
                Pax = voucher.Pax,
                Table = new { FoodTableID = voucher.Table.FoodTableID },
                Customer = new { CustomerID = voucher.Customer.CustomerID },
                Printed = voucher.Printed,
                VoucherType = voucher.VoucherType,
                User = new { UserID = voucher.User.UserID },
                Kots = voucher.Kots.Select(k => new
                {
                    KotID = k.KotID,
                    Inventories = k.Inventories.Select(i => new
                    {
                        InventoryID = i.InventoryID,
                        ProductID = i.Product.ProductID,
                        Quantity = i.Quantity,
                        Price = i.Price,
                        Discount = i.Discount,
                        IsHappyHour = i.IsHappyHour,
                        ServiceCharge = i.ServiceCharge,
                        IsScTaxable = i.IsScTaxable,
                        ServiceTaxID = i.ServiceTax.TaxID,
                        ServiceTaxRate = i.ServiceTaxRate,
                        VatID = i.Vat.TaxID,
                        VatRate = i.VatRate,
                        Modifiers = i.InventoryModifier.Select(m => new
                        {
                            ModifierID = m.Modifier.ModifierID,
                            Price = m.Price
                        })
                    })
                }),
                Settlements = voucher.Settlements.Select(s => new { Settled = s.Settled, Amount = s.Amount })
            };
        }
    }
}