using ConfectioneryBusinessLogic.OfficePackage.HelperModels;
using ConfectioneryBusinessLogic.OfficePackage;
using ConfectioneryContracts.BindingModels;
using ConfectioneryContracts.BussinessLogicsContracts;
using ConfectioneryContracts.SearchModels;
using ConfectioneryContracts.StoragesContracts;
using ConfectioneryContracts.ViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

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

        private readonly IOrderStorage _orderStorage;

        private readonly AbstractSaveToExcel _saveToExcel;

        private readonly AbstractSaveToWord _saveToWord;

        private readonly AbstractSaveToPdf _saveToPdf;

        public ReportLogic(IPastryStorage pastryStorage, IComponentStorage componentStorage, IOrderStorage orderStorage,
            AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
        {
            _pastryStorage = pastryStorage;
            _orderStorage = orderStorage;

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

        public List<ReportPastryComponentViewModel> GetPastryComponents()
        {

            var pastries = _pastryStorage.GetFullList();

            var list = new List<ReportPastryComponentViewModel>();

            foreach (var pastry in pastries)
            {
                var record = new ReportPastryComponentViewModel
                {
                    PastryName = pastry.PastryName,
                    Components = new List<(string Component, int Count)>(),
                    TotalCount = 0,
                };
                foreach (var component in pastry.PastryComponents)
                {
                    record.Components.Add(new(component.Value.Item1.ComponentName, component.Value.Item2));
                    record.TotalCount += component.Value.Item2;
                }

                list.Add(record);
            }

            return list;
        }

        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,
                        PastryName = x.PastryName,
                        OrderStatus = x.Status.ToString(),
                        Sum = x.Sum
                    })
                    .ToList();
        }

        public void SavePastriesToWordFile(ReportBindingModel model)
        {
            _saveToWord.CreateDoc(new WordInfo
            {
                FileName = model.FileName,
                Title = "Список кондитерских изделий",
                Pastries = _pastryStorage.GetFullList()
            });
        }

        public void SavePastryComponentToExcelFile(ReportBindingModel model)
        {
            _saveToExcel.CreateReport(new ExcelInfo
            {
                FileName = model.FileName,
                Title = "Список кондитерских изделий",
                PastryComponents = GetPastryComponents()
            });
        }

        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)
            });
        }
    }
}