using System;
using System.Windows.Forms;
using Contracts.BindingModels;
using Contracts.BusinessLogicContracts;
using Contracts.SearchModels;
using Contracts.ViewModels;
using Library14Petrushin;
using Library14Petrushin.Classes;
using Library15Gerimovich;
using Library15Gerimovich.OfficePackage.HelperModels;
using WinFormsLibrary1;
using WinFormsLibrary1.Models;
using LegendPosition = Library14Petrushin.Classes.LegendPosition;

namespace Forms
{
    public partial class MainForm : Form
    {
        private readonly IProductLogic _productLogic;
        private readonly ICategoryLogic _categoryLogic;
        private ToolStrip toolStrip;

        public MainForm(IProductLogic productLogic, ICategoryLogic categoryLogic)
        {
            InitializeComponent();
            _productLogic = productLogic;
            _categoryLogic = categoryLogic;
            LoadProducts();
        }

        private void LoadProducts()
        {
            var products = _productLogic.ReadList(null);

            var hierarchy = new List<string> { "Category", "CountOnStorageS", "Id", "Name" };
            var alwaysNewBranch = new Dictionary<string, bool> { { "Name", true } };
            _productTreeView.SetHierarchy(hierarchy, alwaysNewBranch);

            foreach (var product in products)
            {
                _productTreeView.AddObjectToTree(product, "Name");
            }
        }

        private void MainForm_Load(object sender, EventArgs e)
        {
            // Настройка контекстного меню и горячих клавиш
            var contextMenu = new ContextMenuStrip();
            contextMenu.Items.Add("Добавить", null, (s, ev) => AddProduct());
            contextMenu.Items.Add("Редактировать", null, (s, ev) => EditProduct());
            contextMenu.Items.Add("Удалить", null, (s, ev) => DeleteProduct());
            contextMenu.Items.Add("Создать документ", null, (s, ev) => CreateDocument());
            contextMenu.Items.Add("Создать документ с таблицей", null, (s, ev) => CreateTableDocument());
            contextMenu.Items.Add("Создать документ с диаграммой", null, (s, ev) => CreateChartDocument());

            // Привязка контекстного меню к компоненту вывода списков
            _productTreeView.ContextMenuStrip = contextMenu;

            // Настройка горячих клавиш
            this.KeyDown += MainForm_KeyDown;

            // Настройка панели инструментов
            toolStrip = new ToolStrip();
            toolStrip.Items.Add("Продукты", null, (s, ev) => OpenProductForm());
            toolStrip.Items.Add("Категории", null, (s, ev) => OpenCategoryForm());
            this.Controls.Add(toolStrip);
        }

        private void MainForm_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Control)
            {
                switch (e.KeyCode)
                {
                    case Keys.A:
                        AddProduct();
                        break;
                    case Keys.U:
                        EditProduct();
                        break;
                    case Keys.D:
                        DeleteProduct();
                        break;
                    case Keys.S:
                        CreateDocument();
                        break;
                    case Keys.T:
                        CreateTableDocument();
                        break;
                    case Keys.C:
                        CreateChartDocument();
                        break;
                }
            }
        }

        private void OpenProductForm()
        {
            var form = new ProductForm(_productLogic, _categoryLogic);
            form.ShowDialog();
        }

        private void OpenCategoryForm()
        {
            var form = new CategoryForm(_categoryLogic);
            if (form.ShowDialog() == DialogResult.OK)
            {
                LoadProducts();
            }
        }

        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            if (keyData == (Keys.Control | Keys.A))
            {
                AddProduct();
                return true;
            }
            else if (keyData == (Keys.Control | Keys.U))
            {
                EditProduct();
                return true;
            }
            else if (keyData == (Keys.Control | Keys.D))
            {
                DeleteProduct();
                return true;
            }
            else if (keyData == (Keys.Control | Keys.S))
            {
                CreateDocument();
                return true;
            }
            else if (keyData == (Keys.Control | Keys.T))
            {
                CreateTableDocument();
                return true;
            }
            else if (keyData == (Keys.Control | Keys.C))
            {
                CreateChartDocument();
                return true;
            }

            return base.ProcessCmdKey(ref msg, keyData);
        }

        private void AddProduct()
        {
            var form = new ProductForm(_productLogic, _categoryLogic);
            if (form.ShowDialog() == DialogResult.OK)
            {
                LoadProducts();
            }
        }

        private void EditProduct()
        {
            var selectedProduct = _productTreeView.GetSelectedObject<ProductViewModel>();
            selectedProduct = _productLogic.ReadElement(new ProductSearchModel
            {
                Id = int.Parse(selectedProduct.Id)
            });
            if (selectedProduct != null)
            {
                var form = new ProductForm(_productLogic, _categoryLogic, selectedProduct);
                if (form.ShowDialog() == DialogResult.OK)
                {
                    LoadProducts();
                }
            }
        }

        private void DeleteProduct()
        {
            var selectedProduct = _productTreeView.GetSelectedObject<ProductViewModel>();
            selectedProduct = _productLogic.ReadElement(new ProductSearchModel
            {
                Id = int.Parse(selectedProduct.Id)
            });
            if (selectedProduct != null)
            {
                var result = MessageBox.Show("Вы действительно хотите удалить этот продукт?", "Подтверждение", MessageBoxButtons.YesNo);
                if (result == DialogResult.Yes)
                {
                    _productLogic.Delete(new ProductBindingModel { Id = int.Parse(selectedProduct.Id) });
                    LoadProducts();
                }
            }
        }

        private void CreateDocument()
        {
            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.");
                }
            }
        }

        private void CreateTableDocument()
        {
            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;
                    }
                    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 = "-",
                    };

                    wordTablesComponent1.CreateTable(config);
                    MessageBox.Show("Документ успешно создан.");
                }
            }
        }

        private void CreateChartDocument()
        {
            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;
                    }


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