using NationalInstruments.TestStand.Interop.API;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace HMI.Simple.Util
{
    public class ParameterUtil
    {
        /// <summary>
        /// 根据路径和参数名获取参数值
        /// </summary>
        /// <param name="path">路径</param>
        /// <param name="name">参数名</param>
        /// <returns>参数值</returns>
        public static string GetCommonParameterValue(string path, string name)
        {
            if (!File.Exists(path)) return null;
            List<ParameterData> datas = XmlHelper.DeserializeFromXml<List<ParameterData>>(path);
            ParameterData data = datas.FirstOrDefault(d => d.Name == name);
            if (data == null) return null;
            return data.Value;
        }

        /// <summary>
        /// 获取HMI里配置的参数
        /// </summary>
        /// <param name="name">参数名</param>
        /// <returns>参数值</returns>
        public static string GetCommonParameterValue(string name, out string errMsg)
        {
            errMsg = string.Empty;
            try
            {
                string value = RegUtil.GetLocaltion();
                string path = Path.Combine(value, "Config", "Parameter", "CommonParameter.data");
                if (!File.Exists(path))
                {
                    errMsg = "未找到配置文件";
                    return null;
                }
                List<ParameterData> datas = XmlHelper.DeserializeFromXml<List<ParameterData>>(path);
                ParameterData data = datas.FirstOrDefault(d => d.Name == name);
                if (data == null)
                {
                    errMsg = "未找到参数，请检查配置";
                    return null;
                }
                return data.Value;
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return null;
            }
        }

        private static void WriteParameterData(SequenceContext context, ParameterData data)
        {
            string prefix = "SystemSetting";
            if (data.Type == "Bool")
            {
                context.StationGlobals.SetValBoolean($"{prefix}.{data.Name}", 1, bool.Parse(data.Value));
            }
            else if (data.Type == "Int")
            {
                context.StationGlobals.SetValNumber($"{prefix}.{data.Name}", 1, int.Parse(data.Value));
            }
            else if (data.Type == "Double")
            {
                context.StationGlobals.SetValNumber($"{prefix}.{data.Name}", 1, double.Parse(data.Value));
            }
            else
            {
                context.StationGlobals.SetValString($"{prefix}.{data.Name}", 1, data.Value);
            }
        }

        /// <summary>
        /// 将参数写进Engine的StationGlobals.StationState
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static bool WriteConfigToContext(object instance, out string errMsg)
        {
            errMsg = string.Empty;
            try
            {
                string value = RegUtil.GetLocaltion();
                string path = Path.Combine(value, "Config", "Parameter", "CommonParameter.data");
                return WriteConfigToContext(path, instance, out errMsg);
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return false;
            }
        }

        /// <summary>
        /// 将参数写进Engine的StationGlobals.StationState
        /// </summary>
        /// <param name="xmlPath">绝对路径</param>
        /// <param name="instance">TestStand上下文</param>
        /// <param name="errMsg">异常信息</param>
        /// <returns>是否成功</returns>
        public static bool WriteConfigToContext(string xmlPath, object instance, out string errMsg)
        {
            errMsg = string.Empty;
            try
            {
                SequenceContext context = (SequenceContext)instance;
                if (string.IsNullOrEmpty(xmlPath))
                {
                    throw new Exception("配置文件路径不能为空");
                }
                if (!File.Exists(xmlPath))
                {
                    throw new Exception("未找到配置文件");
                }
                List<ParameterData> datas = XmlHelper.DeserializeFromXml<List<ParameterData>>(xmlPath);
                foreach (var data in datas)
                {
                    WriteParameterData(context, data);
                }
                return true;
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return false;
            }
        }

        /// <summary>
        /// 将参数写进Engine的StationGlobals.StationState
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static bool WriteConfigToEngineByName(string xmlPath, object instance, string name, out string errMsg)
        {
            errMsg = string.Empty;
            try
            {
                SequenceContext context = (SequenceContext)instance;
                if (string.IsNullOrEmpty(xmlPath))
                {
                    throw new Exception("配置文件路径不能为空");
                }
                if (!File.Exists(xmlPath))
                {
                    throw new Exception("未找到配置文件");
                }
                List<ParameterData> datas = XmlHelper.DeserializeFromXml<List<ParameterData>>(xmlPath);
                ParameterData data = datas.FirstOrDefault(d => d.Name == name);
                if (data == null)
                {
                    throw new Exception("未找到参数，请检查配置");
                }
                WriteParameterData(context, data);
                return true;
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return false;
            }
        }

        /// <summary>
        /// 将参数写进Engine的StationGlobals.StationState
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public static bool WriteConfigToEngineByName(object instance, string name, out string errMsg)
        {
            errMsg = string.Empty;
            try
            {
                SequenceContext engine = (SequenceContext)instance;
                string value = RegUtil.GetLocaltion();
                string path = Path.Combine(value, "Config", "Parameter", "CommonParameter.data");
                return WriteConfigToEngineByName(path, instance, name, out errMsg);
            }
            catch (Exception ex)
            {
                errMsg = ex.Message;
                return false;
            }
        }
    }
}