using CanteenBusinessLogic.OfficePackage;
using CanteenBusinessLogic.OfficePackage.HelperModels;
using CanteenContracts.BindingModels;
using CanteenContracts.BusinessLogicsContracts;
using CanteenContracts.SearchModel;
using CanteenContracts.StoragesContracts;
using CanteenContracts.View;
using CanteenContracts.ViewModels;

namespace CanteenBusinessLogic.BusinessLogics
{
    public class ReportLogic : IReportLogic
    {
        private readonly ILunchStorage lunchStorage;
        private readonly IOrderStorage orderStorage;
        private readonly ICookStorage cookStorage;
        private readonly IProductStorage productStorage;
        private readonly IVisitorStorage workerStorage;
        private readonly AbstractSaveToPdf saveToPdf;
        private readonly AbstractSaveToWord saveToWord;
        private readonly AbstractSaveToExcel saveToExcel;
        public ReportLogic(ILunchStorage lunchStorage, IOrderStorage orderStorage, ICookStorage cookStorage, IProductStorage productStorage,
            IVisitorStorage workerStorage, AbstractSaveToPdf saveToPdf, AbstractSaveToWord saveToWord, AbstractSaveToExcel saveToExcel)
        {
            this.cookStorage = cookStorage;
            this.orderStorage = orderStorage;
            this.lunchStorage = lunchStorage;
            this.productStorage = productStorage;
            this.workerStorage = workerStorage;
            this.saveToPdf = saveToPdf;
            this.saveToWord = saveToWord;
            this.saveToExcel = saveToExcel;
        }
        public List<ReportLunchesPCView> GetLunchesPCView(ReportBindingModel model)
        {
            var list = new List<ReportLunchesPCView>();

            // Получаем список обедов (сущность 1) за указанный период и для указанного посетителя
            var lunches = lunchStorage.GetFilteredList(new LunchSearchModel
            {
                DateFrom = (DateTime)model.DateAfter,
                DateTo = model.DateBefore,
                VisitorId = model.VisitorId
            });

            foreach (var lunch in lunches)
            {
                var record = new ReportLunchesPCView
                {
                    DateCreate = lunch.DateCreate,
                    Sum = Convert.ToInt32(lunch.Sum),
                    Orders = new List<OrderViewModel>(),
                    Cooks = new List<CookViewModel>()
                };

                // Получаем связанные заказы (сущность 2) для текущего обеда
                var orders = lunch.LunchOrders.Keys.ToList();
                foreach (var orderId in orders)
                {
                    // Получаем заказы (сущность 2) и добавляем их в список Orders
                    var order = orderStorage.GetElement(new OrderSearchModel { Id = orderId });
                    record.Orders.Add(order);
                }

                // Получаем связанных поваров (сущность 4) для текущих продуктов обеда
                var lunchProducts = lunch.LunchProducts.Keys.ToList();
                foreach (var productId in lunchProducts)
                {
                    var product = productStorage.GetElement(new ProductSearchModel { Id = productId });
                    var productCooks = product.ProductCooks.Keys.ToList();

                    foreach (var cookId in productCooks)
                    {
                        // Получаем поваров (сущность 4) и добавляем их в список Cooks
                        var cook = cookStorage.GetElement(new CookSearchModel { Id = cookId });
                        record.Cooks.Add(cook);
                    }
                }

                list.Add(record);
            }

            return list;
        }


        public void saveLunchesToPdfFile(ReportBindingModel model)
        {
            saveToPdf.CreateDoc(new PdfInfo
            {
                FileName = model.FileName,
                Title = "Список заказов",
                DateAfter = model.DateAfter.Value,
                DateBefore = model.DateBefore.Value,
                Lunches = GetLunchesPCView(model)
            });
        }
        public List<CookViewModel> GetCooksByLanches(ReportBindingModel model)
        {
            var list = new List<CookViewModel>();
            var listCookIds = new List<int>();
            foreach (var lunch in model.lunches)
            {
                var lunchProducts = lunch.LunchProducts.Keys.ToList().Select(rec => productStorage.GetElement(new ProductSearchModel { Id = rec }));
                foreach (var elem in lunchProducts)
                {
                    listCookIds.AddRange(elem.ProductCooks.Keys.ToList());
                }
            }
            list = listCookIds.Distinct().ToList().Select(rec => cookStorage.GetElement(new CookSearchModel { Id = rec })).ToList();
            return list;
        }
        public void saveCooksToExcel(ReportBindingModel model)
        {
            saveToExcel.CreateReport(new ExcelInfo()
            {
                FileName = model.FileName,
                Title = "Список поваров:",
                Cooks = GetCooksByLanches(model)
            });
        }
        public void saveCooksToWord(ReportBindingModel model)
        {
            saveToWord.CreateDoc(new WordInfo()
            {
                FileName = model.FileName,
                Title = "Список поваров",
                Cooks = GetCooksByLanches(model)
            });
        }
    }
}