using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Plugins;
using Contracts.BusinessLogicContracts;
using Library14Petrushin;
using WinFormsLibrary1;
using Library15Gerimovich.OfficePackage.HelperModels;
using Contracts.ViewModels;
using BusinessLogics.BusinessLogics;
using DatabaseImplement.Implements;
using Contracts.BindingModels;
using DatabaseImplement.Models;
using Library15Gerimovich;
using Library14Petrushin.Classes;

namespace Forms
{
    public class PluginsConvention : IPluginsConvention
    {
        private readonly IProductLogic _productLogic;
        private readonly ICategoryLogic _categoryLogic;
        private readonly HierarchicalTreeView _myTreeView;
        private readonly ComponentWithBigText wordLongTextComponent;
        private readonly WordTablesComponent excelDiagramComponent;
        private readonly PdfCirclDiagr componentDocumentWithTableMultiHeaderPdf;
        public string PluginName { get; set; } = "Products";

        public UserControl GetControl
        {
            get { return _myTreeView; }
        }

        public PluginsConvention()
        {
            _productLogic = new ProductLogic(new ProductStorage());
            _categoryLogic = new CategoryLogic(new CategoryStorage());
            wordLongTextComponent = new();
            excelDiagramComponent = new();
            componentDocumentWithTableMultiHeaderPdf = new();
            _myTreeView = new();
        }

        public PluginsConventionElement GetElement
        {
            get
            {
                int Id = int.Parse(_myTreeView.GetSelectedObject<ProductViewModel>()!.Id);
                byte[] bytes = new byte[16];
                BitConverter.GetBytes(Id).CopyTo(bytes, 0);
                Guid guid = new Guid(bytes);
                return new PluginsConventionElement() { Id = guid };
            }
        }

        public Form GetForm(PluginsConventionElement element)
        {
            if (element == null)
            {
                return new ProductForm(_productLogic, _categoryLogic);
            }
            else
            {
                int id = element.Id.GetHashCode();
                int? idl = id;
                ProductViewModel model = _productLogic.ReadElement(new Contracts.SearchModels.ProductSearchModel { Id = idl });
                ProductForm form = new ProductForm(_productLogic, _categoryLogic, model);
                // form.Id = element.Id.GetHashCode();
                return form;
            }
        }
        
        public Form GetThesaurus()
        {
            return new CategoryForm(_categoryLogic);
        }

        public bool DeleteElement(PluginsConventionElement element)
        {
            _productLogic.Delete(
                new ProductBindingModel { Id = element.Id.GetHashCode() }
            );
            return true;
        }

        public void ReloadData()
        {
            try
            {
                var products = _productLogic.ReadList(null);
                var hierarchy = new List<string> { "Category", "CountOnStorageS", "Id", "Name" };
                var alwaysNewBranch = new Dictionary<string, bool> { { "Name", true } };
                _myTreeView.SetHierarchy(hierarchy, alwaysNewBranch);

                foreach (var product in products)
                {
                    _myTreeView.AddObjectToTree(product, "Name");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(
                    ex.Message,
                    "Ошибка",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Error
                );
            }
        }

        public bool CreateSimpleDocument(PluginsConventionSaveDocument saveDocument)
        {
            using (var saveFileDialog = new SaveFileDialog())
            {
                saveFileDialog.Filter = "Excel files (*.xlsx)|*.xlsx|All files (*.*)|*.*";
                if (saveFileDialog.ShowDialog() == DialogResult.OK)
                {
                    var products = _productLogic.ReadList(null);
                    var rows = products.Select(p => $"{p.Name} - {p.Description}").ToArray();
                    var component = new ComponentWithBigText();
                    component.CreateDocument(saveFileDialog.FileName, "Список продуктов", rows);
                    MessageBox.Show("Документ успешно создан.");
                }
                return true;
            }
        }

        public bool CreateTableDocument(PluginsConventionSaveDocument saveDocument)
        {
            using (var saveFileDialog = new SaveFileDialog())
            {
                saveFileDialog.Filter = "Word files (*.docx)|*.docx|All files (*.*)|*.*";
                if (saveFileDialog.ShowDialog() == DialogResult.OK)
                {
                    var products = _productLogic.ReadList(null);
                    if (products == null || products.Count == 0)
                    {
                        MessageBox.Show("Нет данных для создания документа.");
                        return false;
                    }
                    var headers = new List<(int, int, string, string)>
                    {
                        (0, 0, "Id", "Id"),
                        (1, 0, "Name", "Name"),
                        (2, 0, "Category", "Category"),
                        (3, 0, "CountOnStorage", "CountOnStorage")
                    };

                    var columnsRowsWidth = new List<(int Column, int Row)>
                    {
                        (100, 0),
                        (200, 1),
                        (150, 2),
                        (150, 3)
                    };

                    var config = new WordTableWithData<ProductViewModel>
                    {
                        FileName = saveFileDialog.FileName,
                        Title = "Список продуктов",
                        Headers = headers,
                        Data = products,
                        ColumnsRowsWidth = columnsRowsWidth,
                        NullReplace = "-",
                    };
                    var wordTables = new WordTablesComponent();

                    wordTables.CreateTable(config);
                    MessageBox.Show("Документ успешно создан.");
                }
                return true;
            }
        }

        public bool CreateChartDocument(PluginsConventionSaveDocument saveDocument)
        {
            using (var saveFileDialog = new SaveFileDialog())
            {
                saveFileDialog.Filter = "PDF files (*.pdf)|*.pdf|All files (*.*)|*.*";
                if (saveFileDialog.ShowDialog() == DialogResult.OK)
                {
                    var products = _productLogic.ReadList(null);
                    var categories = products.Where(p => p.CountOnStorage == 0).GroupBy(p => p.Category)
                                     .Select(g => new ChartData
                                     {
                                         SeriesName = g.Key,
                                         Value = g.Count(p => p.CountOnStorage == 0)
                                     }).ToList();

                    if (categories.Count == 0)
                    {
                        MessageBox.Show("Нет данных для создания диаграммы.");
                        return false;
                    }


                    var component = new PdfCirclDiagr();
                    component.GeneratePdf(saveFileDialog.FileName,
                        "Диаграмма продуктов", "Продукты без наличия",
                        LegendPosition.Right,
                        categories);
                    MessageBox.Show("Документ успешно создан.");
                }
                return true;
            }
        }
    }
}