using CaeKnowledge.Data;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace CaeKnowledge
{
    public static class ToolPositionFileHelper
    {
        // 保存ToolPosition列表到CSV文本文件
        public static void SaveToolPositionsToFile(List<ToolPosition> positions, string filePath)
        {
            try
            {
                // 1. 构建CSV表头（与类的属性一一对应）
                var header = "X,Y,Z,I,J,K,SegmentType,Cx,Cy,Cz,FeedRate,SpindleSpeed,RadialDepth,AxialDepth,CurvatureRadius,AverageFx,AverageFy,AverageFz,MaxFx,MaxFy,MaxFz";

                // 2. 构建数据行
                var dataLines = new List<string> { header };
                foreach (var pos in positions)
                {
                    var line = $"{pos.X},{pos.Y},{pos.Z},{pos.I},{pos.J},{pos.K},{(int)pos.SegmentType}," +
                               $"{pos.Cx},{pos.Cy},{pos.Cz},{pos.FeedRate},{pos.SpindleSpeed},{pos.RadialDepth}," +
                               $"{pos.AxialDepth},{pos.CurvatureRadius},{pos.AverageFx},{pos.AverageFy},{pos.AverageFz}," +
                               $"{pos.MaxFx},{pos.MaxFy},{pos.MaxFz}";
                    dataLines.Add(line);
                }

                // 3. 写入文件（UTF-8编码，避免中文/特殊字符乱码）
                File.WriteAllLines(filePath, dataLines, System.Text.Encoding.UTF8);
                Console.WriteLine($"成功保存 {positions.Count} 条数据到文件：{filePath}");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"保存文件失败：{ex.Message}");
                throw; // 抛出异常让调用方处理
            }
        }

        // 从CSV文本文件读取ToolPosition列表
        public static List<ToolPosition> LoadToolPositionsFromFile(string filePath)
        {
            var positions = new List<ToolPosition>();

            try
            {
                // 1. 检查文件是否存在
                if (!File.Exists(filePath))
                {
                    Console.WriteLine($"文件不存在：{filePath}");
                    return positions;
                }

                // 2. 读取所有行并跳过表头
                var lines = File.ReadAllLines(filePath, System.Text.Encoding.UTF8).Skip(1).ToList();

                // 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 != 21)
                    {
                        Console.WriteLine($"跳过格式错误的行：{line}");
                        continue;
                    }

                    // 解析每一列数据（带异常处理，防止数据格式错误）
                    var pos = new ToolPosition();
                    try
                    {
                        pos.X = double.Parse(parts[0]);
                        pos.Y = double.Parse(parts[1]);
                        pos.Z = double.Parse(parts[2]);
                        pos.I = double.Parse(parts[3]);
                        pos.J = double.Parse(parts[4]);
                        pos.K = double.Parse(parts[5]);
                        pos.SegmentType = (EnumSegmentType)int.Parse(parts[6]);
                        pos.Cx = double.Parse(parts[7]);
                        pos.Cy = double.Parse(parts[8]);
                        pos.Cz = double.Parse(parts[9]);
                        pos.FeedRate = double.Parse(parts[10]);
                        pos.SpindleSpeed = double.Parse(parts[11]);
                        pos.RadialDepth = double.Parse(parts[12]);
                        pos.AxialDepth = double.Parse(parts[13]);
                        pos.CurvatureRadius = double.Parse(parts[14]);
                        pos.AverageFx = double.Parse(parts[15]);
                        pos.AverageFy = double.Parse(parts[16]);
                        pos.AverageFz = double.Parse(parts[17]);
                        pos.MaxFx = double.Parse(parts[18]);
                        pos.MaxFy = double.Parse(parts[19]);
                        pos.MaxFz = double.Parse(parts[20]);

                        positions.Add(pos);
                    }
                    catch (FormatException ex)
                    {
                        Console.WriteLine($"解析行数据失败：{line}，错误：{ex.Message}");
                    }
                }

                Console.WriteLine($"成功读取 {positions.Count} 条数据从文件：{filePath}");
            }
            catch (Exception ex)
            {
                Console.WriteLine($"读取文件失败：{ex.Message}");
                throw;
            }

            return positions;
        }
    }
}