using ConfectioneryBusinessLogic.OfficePackage.HelperModels;
using ConfectioneryBusinessLogic.OfficePackage;
using ConfectioneryContracts.BindingModels;
using ConfectioneryContracts.BusinessLogicsContracts;
using ConfectioneryContracts.SearchModels;
using ConfectioneryContracts.StoragesContract;
using ConfectioneryContracts.ViewModels;

namespace ConfectioneryBusinessLogic
{
    public class ReportLogic : IReportLogic
    {
        private readonly IPastryStorage _pastryStorage;

        private readonly IOrderStorage _orderStorage;

        private readonly IShopStorage _shopStorage;

        private readonly AbstractSaveToExcel _saveToExcel;

        private readonly AbstractSaveToWord _saveToWord;

        private readonly AbstractSaveToPdf _saveToPdf;

        public ReportLogic(IPastryStorage PastryStorage, IOrderStorage orderStorage, IShopStorage shopStorage,
            AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
        {
            _pastryStorage = PastryStorage;
            _orderStorage = orderStorage;
            _shopStorage = shopStorage;

            _saveToExcel = saveToExcel;
            _saveToWord = saveToWord;
            _saveToPdf = saveToPdf;
        }

        /// <summary>
        /// Получение списка магазинов с изделиями
        /// </summary>
        /// <returns></returns>
        public List<ReportShopPastrytViewModel> GetShopPastries()
        {
            var shops = _shopStorage.GetFullList();

            var pastries = _pastryStorage.GetFullList();

            var list = new List<ReportShopPastrytViewModel>();

            foreach (var shop in shops)
            {
                var record = new ReportShopPastrytViewModel
                {
                    ShopName = shop.Name,
                    Pastries = new List<Tuple<string, int>>(),
                    TotalCount = 0
                };
                foreach (var pastry in pastries)
                {
                    if (shop.Pastries.ContainsKey(pastry.Id))
                    {
                        record.Pastries.Add(new(pastry.PastryName, shop.Pastries[pastry.Id].Item2));
                        record.TotalCount += shop.Pastries[pastry.Id].Item2;
                    }
                }
                record.Workload = record.TotalCount / (double)shop.MaxCountPastries;
                list.Add(record);
            }

            return list;
        }

        /// <summary>
        /// Получение списка заказов за определенный период
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public List<ReportOrdersViewModel> GetOrders(ReportBindingModel model)
        {
            return _orderStorage.GetFullList()
                .GroupBy(x => x.DateCreate.Date)
                .Select(x => new ReportOrdersViewModel 
                { 
                    Date = x.Key,
                    Count = x.Count(),
                    Sum = x.Sum(y => y.Sum)
                }).ToList();

        }

        /// <summary>
        /// Сохранение магазинов в файл-Word
        /// </summary>
        /// <param name="model"></param>
        public void SaveShopsToWordFile(ReportBindingModel model)
        {
            _saveToWord.CreateDoc(new WordInfo
            {
                FileName = model.FileName,
                Title = "Список магазинов",
                Shops = _shopStorage.GetFullList()
            });
        }

        /// <summary>
        /// Сохранение магазинов с указаеним продуктов в файл-Excel
        /// </summary>
        /// <param name="model"></param>
        public void SaveShopPastryToExcelFile(ReportBindingModel model)
        {
            _saveToExcel.CreateReport(new ExcelInfo
            {
                FileName = model.FileName,
                Title = "Список магазинов",
                ShopPastries = GetShopPastries()
            });
        }

        /// <summary>
        /// Сохранение заказов в файл-Pdf
        /// </summary>
        /// <param name="model"></param>
        public void SaveOrdersToPdfFile(ReportBindingModel model)
        {
            _saveToPdf.CreateDoc(new PdfInfo
            {
                FileName = model.FileName,
                Title = "Список заказов",
                DateFrom = model.DateFrom!.Value,
                DateTo = model.DateTo!.Value,
                Orders = GetOrders(model)
            });
        }
    }
}