using LawFirmBusinessLogic.OfficePackage;
using LawFirmBusinessLogic.OfficePackage.HelperModels;
using LawFirmContracts.BindingModels;
using LawFirmContracts.BusinessLogicContracts;
using LawFirmContracts.SearchModels;
using LawFirmContracts.StorageContracts;
using LawFirmContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LawFirmBusinessLogic.BusinessLogics
{
    public class ReportLogic : IReportLogic
    {
        private readonly IBlankStorage _blankStorage;
        private readonly IDocumentStorage _documentStorage;
        private readonly IOrderStorage _orderStorage;
        private readonly IShopStorage _shopStorage;
        private readonly AbstractSaveToExcel _saveToExcel;
        private readonly AbstractSaveToWord _saveToWord;
        private readonly AbstractSaveToPdf _saveToPdf;
        public ReportLogic(IDocumentStorage documentStorage, IBlankStorage blankStorage, IOrderStorage orderStorage, IShopStorage shopStorage, AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
        {
            _documentStorage = documentStorage;
            _blankStorage = blankStorage;
            _orderStorage = orderStorage;
            _shopStorage = shopStorage;
            _saveToExcel = saveToExcel;
            _saveToWord = saveToWord;
            _saveToPdf = saveToPdf;
        }
        /// Получение списка компонент с указанием, в каких изделиях используются
        public List<ReportDocumentBlankViewModel> GetDocumentBlanks()
        {
            var documents = _documentStorage.GetFullList();
            var list = new List<ReportDocumentBlankViewModel>();
            foreach (var doc in documents)
            {
                var record = new ReportDocumentBlankViewModel
                {
                    DocumentName = doc.DocumentName,
                    Blanks = new List<(string Blank, int Count)>(),
                    TotalCount = 0
                };
                foreach (var blank in doc.DocumentBlanks.Values)
                {
                        record.Blanks.Add((blank.Item1.BlankName, blank.Item2));
                        record.TotalCount += blank.Item2;
                    
                }
                list.Add(record);
            }
            return list;
        }
        /// Получение списка заказов за определенный период
        public List<ReportOrdersViewModel> GetOrders(ReportBindingModel model)
        {
            return _orderStorage.GetFilteredList(new OrderSearchModel
            {
                DateFrom = model.DateFrom,
                DateTo = model.DateTo
            })
            .Select(x => new ReportOrdersViewModel
            {
                Id = x.Id,
                DateCreate = x.DateCreate,
                DocumentName = x.DocumentName,
                Sum = x.Sum,
                Status = x.Status.ToString(),
            })
           .ToList();
        }
        /// Сохранение компонент в файл-Word
        public void SaveDocumentsToWordFile(ReportBindingModel model)
        {
            _saveToWord.CreateDoc(new WordInfo
            {
                FileName = model.FileName,
                Title = "Список документов",
                Documents = _documentStorage.GetFullList()
            });
        }
        /// Сохранение компонент с указаеним продуктов в файл-Excel
        public void SaveProductComponentToExcelFile(ReportBindingModel model)
        {
            _saveToExcel.CreateReport(new ExcelInfo
            {
                FileName = model.FileName,
                Title = "Список документов",
                DocumentBlanks = GetDocumentBlanks()
            });
        }
        /// Сохранение заказов в файл-Pdf
        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)
            });
        }

        public void SaveShopsToWordFile(ReportBindingModel model)
        {
            _saveToWord.CreateTableDoc(new WordInfo
            {
                FileName = model.FileName,
                Title = "Список магазинов",
                Shops = _shopStorage.GetFullList()
            });
        }
        public void SaveShopDocumentsToExcelFile(ReportBindingModel model)
        {
            _saveToExcel.CreateShopReport(new ExcelInfo
            {
                FileName = model.FileName,
                Title = "Загруженность магазинов",
                ShopDocuments = GetShopDocuments()
            });
        }

        public List<ReportShopDocumentsViewModel> GetShopDocuments()
        {
            var shops = _shopStorage.GetFullList();
            var list = new List<ReportShopDocumentsViewModel>();
            foreach (var shop in shops)
            {
                var record = new ReportShopDocumentsViewModel
                {
                    ShopName = shop.Name,
                    Documents = new List<Tuple<string, int>>(),
                    Count = 0
                };
                foreach (var docCount in shop.ShopDocuments.Values)
                {
                    record.Documents.Add(new Tuple<string, int>(docCount.Item1.DocumentName, docCount.Item2));
                    record.Count += docCount.Item2;
                }
                list.Add(record);
            }
            return list;
        }

        public List<ReportDateOrdersViewModel> GetDateOrders()
        {
            return _orderStorage.GetFullList().GroupBy(x => x.DateCreate.Date).Select(x => new ReportDateOrdersViewModel
            {
                DateCreate = x.Key,
                CountOrders = x.Count(),
                SumOrders = x.Sum(y => y.Sum)
            }).ToList();
        }
        public void SaveDateOrdersToPdfFile(ReportBindingModel model)
        {
            _saveToPdf.CreateReportDateDoc(new PdfInfo
            {
                FileName = model.FileName,
                Title = "Заказы по датам",
                DateOrders = GetDateOrders()
            });
        }
    }
}