using CaeGlobals;
using CaeKnowledge;
using CaeKnowledge.View;
using CaeMesh;
using CaeResults;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace CPSO.Forms._92_Knowledge
{
    public partial class FrmAnalysisResult : Form
    {
        public FrmAnalysisResult()
        {
            InitializeComponent();

            dataGridView1.AllowUserToAddRows = false;
            dataGridView1.AllowUserToDeleteRows = false;

            dataGridView1.EditMode = DataGridViewEditMode.EditProgrammatically;
            dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;

        }

        private Controller _self;

        public Controller Self { get { return _self; } }

        public void PrepareForm(Controller self)
        {
            if (self != null)
            {
                _self = self;

                toolStripComboBox1.Items.Clear();

                toolStripComboBox1.Items.Add("None");

                // 分析结果
                foreach (string name in Self.AllResults.GetResultNames())
                {
                    var result = Self.AllResults.GetResult(name);

                    if (result != null)
                    {
                        toolStripComboBox1.Items.Add(result.FileName);
                    }
                }

                toolStripComboBox1.SelectedIndex = 0;
            }
        }

        private void toolStripButton1_Click(object sender, System.EventArgs e)
        {
            if (dataGridView1.DataSource is BindingList<ViewFeLog> list)
            {
                list.Clear();

                if (toolStripComboBox1.SelectedIndex >= 0
                    && toolStripComboBox1.SelectedItem is string resultName
                    && File.Exists(resultName))
                {
                    var results = LoadResult(resultName);
                    
                    results.ForEach(x => list.Add(x));
                }
                else
                {
                    MessageBox.Show($"没有指定已完成的分析结果，无法提取结果！",
                        "消息", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        private List<ViewFeLog> LoadResult(string resultName)
        {
            if (resultName.IsNullOrEmptyOrWhiteSpace())
                return null;

            var list = new List<ViewFeLog>();

            // 1. 分析结果文件
            if (!_self.AllResults.ContainsResult(resultName))
            {
                FeResults results = FrdFileReader.Read(resultName);

                _self.AllResults.Add(resultName, results);
            }
            // 2. 读取映射文件
            string filePath = Path.GetDirectoryName(resultName);
            string fileName = Path.GetFileNameWithoutExtension(resultName);
            string fullPath = Path.Combine(filePath, $"{fileName}.st2");

            var lines = File.ReadAllLines(fullPath, System.Text.Encoding.UTF8).ToList();

            Dictionary<int, string> stepNames = new Dictionary<int, string>();
            Dictionary<int, string> surfaceNames = new Dictionary<int, string>();

            // 3. 解析每一行数据
            foreach (var line in lines)
            {
                if (string.IsNullOrWhiteSpace(line)) continue; // 跳过空行

                var parts = line.Split(',');

                // 校验列数是否匹配（防止文件格式错误）
                if (parts.Length != 3)
                {
                    continue;
                }

                int id = int.Parse(parts[0]);
                stepNames.Add(id, parts[1]);
                surfaceNames.Add(id, parts[2]);
            }

            // 3. 物理场
            FeResults fr = _self.AllResults.GetResult(resultName);

            var allStepIds = fr.GetAllStepIds();

            foreach (var stepId in allStepIds)
            {
                // 3.1 对应的曲面集
                var stepName = stepNames[stepId];

                var surfaceName = surfaceNames[stepId];
                FeSurface surface = Self.GetSurface(surfaceName);

                var nodeSet = Self.GetNodeSet(surface.NodeSetName); // 该曲面集对应的内部节点集合

                int[] labels = nodeSet.Labels; // 对应的节点

                // 3.2 提取出的位移值
                var dispAll = fr.GetField(fr.GetFieldData("DISP", "ALL", stepId, 1)).GetComponentValues("ALL");
                var dispU = fr.GetField(fr.GetFieldData("DISP", "U1", stepId, 1)).GetComponentValues("U1");
                var dispV = fr.GetField(fr.GetFieldData("DISP", "U2", stepId, 1)).GetComponentValues("U2");
                var dispW = fr.GetField(fr.GetFieldData("DISP", "U3", stepId, 1)).GetComponentValues("U3");

                foreach ( var label in labels)
                {
                    int index = label - 1;
                    
                    var node = Self.GetNode(label);

                    double all = dispAll[index];
                    double u = dispU[index];
                    double v = dispV[index];
                    double w = dispW[index];

                    list.Add(new ViewFeLog(stepId, stepName, node.Id, node.X, node.Y, node.Z, all, u, v, w));
                }
            }

            return list;
        }

        private void FrmAnalysisResult_Load(object sender, System.EventArgs e)
        {
            dataGridView1.Columns.Clear();
            dataGridView1.DataSource = new BindingList<ViewFeLog>();

            toolStripComboBox1.SelectedIndex = -1;
        }
    }
}