using AbstractShopBusinessLogic.OfficePackage;
using AbstractShopBusinessLogic.OfficePackage.HelperModels;
using AbstractShopContracts.BindingModels;
using AbstractShopContracts.BusinessLogicsContracts;
using AbstractShopContracts.SearchModels;
using AbstractShopContracts.StoragesContracts;
using AbstractShopContracts.ViewModels;

namespace AbstractShopBusinessLogic.BusinessLogics
{
    public class ReportLogic : IReportLogic
    {
        private readonly IComponentStorage _componentStorage;

        private readonly IProductStorage _productStorage;

        private readonly IOrderStorage _orderStorage;

        private readonly AbstractSaveToExcel _saveToExcel;

        private readonly AbstractSaveToWord _saveToWord;

        private readonly AbstractSaveToPdf _saveToPdf;

        public ReportLogic(IProductStorage productStorage, IComponentStorage componentStorage, IOrderStorage orderStorage,
            AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
        {
            _productStorage = productStorage;
            _componentStorage = componentStorage;
            _orderStorage = orderStorage;

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

        /// <summary>
        /// Получение списка компонент с указанием, в каких изделиях используются
        /// </summary>
        /// <returns></returns>
        public List<ReportProductComponentViewModel> GetProductComponent()
        {
            var components = _componentStorage.GetFullList();

            var products = _productStorage.GetFullList();

            var list = new List<ReportProductComponentViewModel>();

            foreach (var component in components)
            {
                var record = new ReportProductComponentViewModel
                {
                    ComponentName = component.ComponentName,
                    Products = new List<(string, int)>(),
                    TotalCount = 0
                };
                foreach (var product in products)
                {
                    if (product.ProductComponents.ContainsKey(component.Id))
                    {
                        record.Products.Add(new (product.ProductName, product.ProductComponents[component.Id].Item2));
                        record.TotalCount += product.ProductComponents[component.Id].Item2;
                    }
                }

                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.GetFilteredList(new OrderSearchModel { DateFrom = model.DateFrom, DateTo = model.DateTo })
                    .Select(x => new ReportOrdersViewModel
                    {
                        Id = x.Id,
                        DateCreate = x.DateCreate,
                        ProductName = x.ProductName,
                        Sum = x.Sum
                    })
                    .ToList();
        }

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

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

        /// <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)
            });
        }
    }
}