using ForumContracts.BindingModels;
using ForumContracts.BusinessLogicContracts;
using ForumContracts.SearchModels;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Forum
{
    public partial class FormAddTopics : Form
    {
        private readonly ICategoryLogic _categoryLogic;
        private readonly ITopicLogic _topicLogic;
        private int? _id;
        public int Id { set { _id = value; } }
        public FormAddTopics(ITopicLogic topicLogic, ICategoryLogic categoryLogic)
        {
            InitializeComponent();
            _topicLogic = topicLogic;
            _categoryLogic = categoryLogic;
        }

        private void FormAddTopic_Load(object sender, EventArgs e)
        {
            LoadData();
            try
            {
                var view = _categoryLogic.ReadElement(new CategorySearchModel { Id = _id.Value });

                if (view != null)
                {
                    textBoxCategory.Text = view.Name;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void buttonCreate_Click(object sender, EventArgs e)
        {
            var service = Program.ServiceProvider?.GetService(typeof(FormAddTopic));

            if (service is FormAddTopic form)
            {
                form.Id = _id ?? 0;
                if (form.ShowDialog() == DialogResult.OK)
                {
                    LoadData();
                }
            }
        }

        private void LoadData()
        {
            try
            {
                var list = _topicLogic.ReadList(new TopicSearchModel { CategoryId = _id });

                if (list != null)
                {
                    dataGridView.DataSource = list;
                    dataGridView.Columns["Id"].Visible = false;
                    dataGridView.Columns["CategoryId"].Visible = false;
                    dataGridView.Columns["Name"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
                }
            }
            catch (Exception)
            { }
        }

        private void buttonChange_Click(object sender, EventArgs e)
        {

        }

        private void buttonDelete_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);

                    try
                    {
                        if (!_topicLogic.Delete(new TopicBindingModel
                        {
                            Id = id
                        }))
                        {
                            throw new Exception("Ошибка при удалении.");
                        }

                        LoadData();
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
            }
        }

        private void buttonUpdate_Click(object sender, EventArgs e)
        {
            LoadData();
        }
    }
}