using Newtonsoft.Json;
using Serilog;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Xml;
using WPFWCSDemo.Data;
using WPFWCSDemo.Models.Tables;
using WPFWCSDemo.StateCode;
using WPFWCSDemo.ViewModels;

namespace WPFWCSDemo.Utilities
{
    public class SqlHelper
    {
        /// <summary>
        /// sql连接字符串，引用自【app.config】
        /// </summary>
        public static string? ConStr { get; set; }

        /// <summary>
        /// 检查数据库是否连接正常
        /// </summary>
        /// <returns>true-连接正常 false-连接失败</returns>
        public static bool IsDBConnected()
        {
            using var context = new AppDbContext();

            return context.Database.CanConnect();
        }


        /// <summary>
        /// 获取数据集
        /// </summary>
        /// <param name="cmdText">sql执行语句</param>
        /// <param name="sqlParameters">可选的sql参数</param>
        /// <returns>查询目标的数据集</returns>
        public static DataSet GetDataSet(string cmdText, params SqlParameter[] sqlParameters)
        {
            //创建sql连接
            using SqlConnection conn = new SqlConnection(ConStr);
            try
            {
                conn.Open();
            }
            catch (Exception)
            {
                return null;
            }

            using SqlCommand cmd = new SqlCommand(cmdText, conn);
            cmd.Parameters.AddRange(sqlParameters);
            using SqlDataAdapter sda = new SqlDataAdapter(cmd);
            using DataSet ds = new DataSet();
            sda.Fill(ds);
            //TableRefresh(cmdText);

            return ds;
        }


        /// <summary>
        /// 获取对应SQL查询的数据表
        /// </summary>
        /// <param name="cmdText">sql执行语句</param>
        /// <returns>查询目标的数据表名</returns>
        public static DataTable? ExecuteTable(string cmdText, params SqlParameter[] sqlParameters)
        {
            return GetDataSet(cmdText, sqlParameters).Tables[0];
        }




        /// <summary>
        /// 获取某个表字段的集合
        /// </summary>
        /// <param name="cmdText">sql执行语句</param>
        /// <returns>查询目标表字段/列名的值的集合</returns>
        public static List<string> GetColumns(string cmdText)
        {
            //创建用于存储列名的集合
            List<string> columns = new List<string>();

            //创建sql连接
            using (SqlConnection conn = new SqlConnection(ConStr))
            {
                try
                {
                    conn.Open();
                }
                catch (Exception)
                {
                    return null;
                }


                SqlCommand cmd = new SqlCommand(cmdText, conn);
                SqlDataAdapter sda = new SqlDataAdapter(cmdText, conn);
                DataSet ds = new DataSet();
                sda.Fill(ds);

                //将获取到的字段名添加到集合中
                foreach (DataColumn colName in ds.Tables[0].Columns)
                {
                    columns.Add(colName.ToString());
                }

                return columns;
            }
        }


        /// <summary>
        /// 操作获取受影响的行数
        /// </summary>
        /// <param name="cmdText">sql语句</param>
        /// <param name="sqlParameters">sql字段参数</param>
        /// <returns></returns>
        public static int ExecuteNonQuery(string cmdText, params SqlParameter[] sqlParameters)
        {
            //创建sql连接
            using (SqlConnection conn = new SqlConnection(ConStr))
            {
                conn.Open();

                using SqlCommand cmd = new SqlCommand(cmdText, conn);

                //sql参数化设置
                cmd.Parameters.AddRange(sqlParameters);
                //MessageBox.Show(cmdText);
                //返回执行sql受影响的行数
                int rows = cmd.ExecuteNonQuery();
                if (rows > -1)
                {
                    //throw new Exception("获取数据失败！（错误代码：000001）");
                }

                //TableRefresh(cmdText);

                return rows;
            }
        }


        /// <summary>
        /// 获取查询数据的行数
        /// </summary>
        /// <param name="cmdText">SQL字符串</param>
        /// <returns>目标行数</returns>
        public static int GetRowCount(string cmdText, params SqlParameter[] sqlParameters)
        {
            using (DataTable dt = ExecuteTable(cmdText, sqlParameters))
            {
                if (dt == null)
                {
                    return 0;
                }
                return dt.Rows.Count;
            }

        }



        /// <summary>
        /// 获取为当前任务【自动生成】的WCS本地任务号
        /// </summary>
        /// <returns></returns>
        public static int GetTaskIdByAutoGeneration()
        {
            using DataTable dt = ExecuteTable("SELECT TASKNO FROM TASKNUMBER");

            int taskId = (int)dt.Rows[0][0];

            //此处定义9开头的任务号为手动添加的任务,因此自动生成的任务号小于9000
            if (taskId > 899999)
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET TASKNO=@TaskNo WHERE TASKNO=@TaskId",
                    new SqlParameter("@taskNo", 100001),
                    new SqlParameter("@taskId", taskId));
                return 100001;
            }
            else
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET TASKNO=@TaskNo WHERE TASKNO=@TaskId",
                    new SqlParameter("@taskNo", taskId + 1),
                    new SqlParameter("@taskId", taskId));
            }
            
            return taskId;
        }

        /// <summary>
        /// 获取为当前任务【手动添加】的WCS本地任务号
        /// </summary>
        /// <returns></returns>
        public static int GetTaskIdByManualGeneration()
        {
            using DataTable dt = ExecuteTable("SELECT MAN_TASKNO FROM TASKNUMBER");

            int taskId = (int)dt.Rows[0][0];

            //此处定义9开头的任务号为手动添加的任务
            if (taskId > 999999)
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET MAN_TASKNO=@Man_TaskNo WHERE MAN_TASKNO=@TaskId",
                    new SqlParameter("@Man_TaskNo", 900000),
                    new SqlParameter("@taskId", taskId));
                return 900000;
            }
            else
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET MAN_TASKNO=@Man_TaskNo WHERE MAN_TASKNO=@TaskId",
                    new SqlParameter("@Man_TaskNo", taskId + 1),
                    new SqlParameter("@taskId", taskId));
            }

            return taskId;
        }



        /// <summary>
        /// 获取为当前事件【手动添加】的编号
        /// </summary>
        /// <returns></returns>
        public static int GetEventIdByAutoGeneration()
        {
            using DataTable? dt = ExecuteTable("SELECT EVENT_TASKNO FROM TASKNUMBER");

            int taskId = (int)dt.Rows[0][0];

            //此处定义9开头的任务号为手动添加的任务
            if (taskId > 9999)
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET EVENT_TASKNO=@Event_TaskNo WHERE EVENT_TASKNO=@TaskId",
                    new SqlParameter("@Event_TaskNo", 1001),
                    new SqlParameter("@taskId", taskId));
                return 1001;
            }
            else
            {
                ExecuteNonQuery("UPDATE TASKNUMBER SET EVENT_TASKNO=@Event_TaskNo WHERE EVENT_TASKNO=@TaskId",
                    new SqlParameter("@Event_TaskNo", taskId + 1),
                    new SqlParameter("@taskId", taskId));
            }

            return taskId;
        }


        /// <summary>
        /// 记录当前操作事件
        /// </summary>
        /// <param name="message">信息</param>
        /// <param name="userId">标识</param>
        /// <param name="type">类型（登录、操作等）</param>
        /// <param name="source">来源（名称、数据集等）</param>
        /// <param name="level">级别</param>
        /// <param name="status">状态（是否完成等）</param>
        public static void NewEventLog(string message,string userId, string type, string source, string level, string status)
        {
            using var context = new AppDbContext();

            Event_Log event_Log = new Event_Log()
            {
                Id = Guid.NewGuid(),
                Message = message,
                TimeStamp = DateTime.Now.ToString(TimeFormat.stringFormat),
                UserId = userId,
                Type = type,
                Source = source,
                Level = level,
                Status = status,
            };

            context.Event_Log.Add(event_Log);

            context.SaveChanges();

            Log.Warning($"【事件记录】{JsonConvert.SerializeObject(event_Log)}");
        }
        /// <summary>
        /// 记录当前操作事件
        /// </summary>
        /// <param name="message">信息</param>
        /// <param name="userId">标识</param>
        /// <param name="type">类型（登录、操作等）</param>
        /// <param name="source">来源（名称、数据集等）</param>
        /// <param name="level">级别</param>
        /// <param name="status">状态（是否完成等）</param>
        public static void NewEventLog(string message, string userId)
        {
            using var context = new AppDbContext();

            Event_Log event_Log = new Event_Log()
            {
                Id = Guid.NewGuid(),
                Message = message,
                TimeStamp = DateTime.Now.ToString(TimeFormat.stringFormat),
                UserId = userId,
            };

            context.Event_Log.Add(event_Log);

            context.SaveChanges();

            Log.Warning($"【事件记录】{event_Log.UserId}-{event_Log.Message}");
        }




    }
}