using CaeGlobals;
using CaeKnowledge;
using CaeKnowledge.View;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;

namespace CPSO.Forms._92_Knowledge
{
    public partial class FrmEditProcessingJobs : Form
    {
        private Controller Self { get; }
        private bool _modified;

        // Constructors                                                                                                             
        public FrmEditProcessingJobs(Controller self)
        {
            InitializeComponent();

            Text = @"分析模型查看";
            dgvCommands.DataBindingComplete += DataBindingComplete;

            Self = self;
            _modified = false;
        }

        private void tsmiClose_Click(object sender, EventArgs e)
        {
            Hide();
        }

        private void dgvCommands_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
        {
            // Color blue = Color.FromArgb(225, 245, 255);
            Color green = Color.FromArgb(235, 255, 235);
            // Color yellow = Color.FromArgb(255, 255, 205);
            // Color red = Color.FromArgb(255, 235, 215);

            dgvCommands.Rows[e.RowIndex].DefaultCellStyle.BackColor = green;
        }

        private void btnClearAll_Click(object sender, EventArgs e)
        {
            dgvCommands.DataSource = null;

            _viewProcessingJobs.Clear();

            SetBinding();

            _modified = true;
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            try
            {
                DialogResult = DialogResult.OK;

                if (_modified && dgvCommands.DataSource is BindingSource source
                    && source.DataSource is List<ViewProcessingJob> list)
                {
                    Self.ProcessingJobs.Clear();
                    Self.ProcessingJobs.AddRange(list);
                    _modified = false;
                }

                Hide();
            }
            catch (Exception ex)
            {
                ExceptionTools.Show(this, ex);
            }
        }

        private readonly List<ViewProcessingJob> _viewProcessingJobs = new List<ViewProcessingJob>();

        // Methods                                                                                                                  
        public void PrepareForm()
        {
            _viewProcessingJobs.Clear();

            if (Self.ProcessingJobs.Count > 0)
            {
                _viewProcessingJobs.AddRange(Self.ProcessingJobs);
            }

            SetBinding();
        }

        private void SetBinding()
        {
            BindingSource binding = new BindingSource()
            {
                DataSource = _viewProcessingJobs
            };

            dgvCommands.DataSource = binding;
        }

        // Source - https://stackoverflow.com/a/24784960
        // Posted by TFischer
        private void DataBindingComplete(object sender, DataGridViewBindingCompleteEventArgs e)
        {
            // Loops through each row in the DataGridView, and adds the
            // row number to the header
            foreach (DataGridViewRow dGVRow in dgvCommands.Rows)
            {
                dGVRow.HeaderCell.Value = $"{dGVRow.Index + 1}";
            }

            // This resizes the width of the row headers to fit the numbers
            dgvCommands.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);
        }

        private void FrmEditToolPositions_Load(object sender, EventArgs e)
        {
            dgvCommands.AllowUserToAddRows = false;
            dgvCommands.AllowUserToDeleteRows = false;
            dgvCommands.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
        }

        private void tsmiOpen_Click(object sender, EventArgs e)
        {
            try
            {
                using (OpenFileDialog ofd = new OpenFileDialog())
                {
                    ofd.Filter = "计算任务列表 (*.wdb)|*.wdb|All Files (*.*)|*.*";
                    ofd.FilterIndex = 1;
                    ofd.RestoreDirectory = true;

                    if (ofd.ShowDialog() == DialogResult.OK)
                    {
                        // 1. 从数据读取
                        var list = KnowledgeTools.LoadDatabase(ofd.FileName);

                        // 2. 保存到Controller
                        Self.ProcessingJobs.Clear();
                        list.ForEach(x =>
                        {
                            Self.ProcessingJobs.Add(new ViewProcessingJob(x));
                        });

                        // 3. 现实到dgv
                        PrepareForm();
                    }
                }
            }
            catch (Exception ex)
            {
                ExceptionTools.Show(ex);
            }
        }

        private void tsmiSaveAs_Click(object sender, EventArgs e)
        {
            try
            {
                using (SaveFileDialog sfd = new SaveFileDialog())
                {
                    sfd.Filter = "计算任务列表 (*.wdb)|*.wdb|All Files (*.*)|*.*";
                    sfd.FilterIndex = 1;
                    sfd.RestoreDirectory = true;

                    if (sfd.ShowDialog() == DialogResult.OK)
                    {
                        var fullPath = sfd.FileName;

                        var jobs = Self.ProcessingJobs.Select(x => x.Base).ToList();

                        // 保存到数据库
                        KnowledgeTools.SaveDatabase(fullPath, jobs);
                    }
                }
            }
            catch (Exception ex)
            {
                ExceptionTools.Show(ex);
            }
        }
    }
}