using System.Data;
using System.Dynamic;
using System.Text;
using JNPF.Common.Dtos.DataBase;
using JNPF.Common.Enums;
using JNPF.Common.Extension;
using JNPF.Common.Filter;
using JNPF.Common.Models;
using JNPF.Common.Models.VisualDev;
using JNPF.Common.Security;
using JNPF.DependencyInjection;
using JNPF.FriendlyException;
using JNPF.Logging;
using JNPF.Systems.Entitys.Dto.Database;
using JNPF.Systems.Entitys.Model.DataBase;
using JNPF.Systems.Entitys.System;
using JNPF.VisualDev.Entitys.Dto.VisualDevModelData;
using Mapster;
using Microsoft.Extensions.Options;
using SqlSugar;

namespace JNPF.Common.Core.Manager;

/// <summary>
/// 实现切换数据库后操作.
/// </summary>
public class DataBaseManager : IDataBaseManager, ITransient
{
  /// <summary>
  /// 初始化客户端.
  /// </summary>
  private static SqlSugarScope _sqlSugarClient;

  /// <summary>
  /// 用户管理器.
  /// </summary>
  private readonly IUserManager _userManager;

  /// <summary>
  /// 数据库配置选项.
  /// </summary>
  private readonly ConnectionStringsOptions _connectionStrings;

  /// <summary>
  /// 构造函数.
  /// </summary>
  public DataBaseManager(
      IOptions<ConnectionStringsOptions> connectionOptions,
      IUserManager userManager,
      ISqlSugarClient context)
  {
    _sqlSugarClient = (SqlSugarScope)context;
    _userManager = userManager;
    _connectionStrings = connectionOptions.Value;
  }

  /// <summary>
  /// 数据库切换.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <returns>切库后的SqlSugarClient.</returns>
  public SqlSugarScope ChangeDataBase(DbLinkEntity link)
  {
    if (_sqlSugarClient.AsTenant().IsAnyConnection(link.Id))
    {
      _sqlSugarClient.ChangeDatabase(link.Id);
    }
    else
    {
      _sqlSugarClient.AddConnection(new ConnectionConfig()
      {
        ConfigId = link.Id,
        DbType = ToDbType(link.DbType),
        ConnectionString = ToConnectionString(link),
        InitKeyType = InitKeyType.Attribute,
        IsAutoCloseConnection = true
      });
      var db = _sqlSugarClient.GetConnectionScope(link.Id);

      // 设置超时时间
      db.Ado.CommandTimeOut = 30;
      db.Aop.OnLogExecuted = (sql, pars) =>
      {
        var oldColor = Console.ForegroundColor;
        Console.ForegroundColor = ConsoleColor.Green;
        var finalSql = UtilMethods.GetSqlString(db.CurrentConnectionConfig.DbType, sql, pars);
        Console.WriteLine($"【{DateTime.Now.ToString("HH:mm:ss.fff")}——SQL执行完成】{db.Ado.SqlExecutionTime.TotalMilliseconds} ms");
        Console.WriteLine(finalSql);
        Console.ForegroundColor = oldColor;
        if (db.Ado.SqlExecutionTime.TotalMilliseconds > 3000)
        {
          Log.Warning($"慢查询: {db.Ado.SqlExecutionTime.TotalMilliseconds}ms, SQL: " + finalSql);
        }
        Console.WriteLine();
      };
      db.Aop.OnError = (ex) =>
      {
        Log.Error(UtilMethods.GetSqlString(db.CurrentConnectionConfig.DbType, ex.Sql, (SugarParameter[])ex.Parametres));
      };

      _sqlSugarClient.ChangeDatabase(link.Id);
    }

    return _sqlSugarClient;
  }

  /// <summary>
  /// 获取多租户Link.
  /// </summary>
  /// <param name="tenantId">租户ID.</param>
  /// <param name="tenantName">租户数据库.</param>
  /// <returns></returns>
  public DbLinkEntity GetTenantDbLink(string tenantId, string tenantName)
  {
    return new DbLinkEntity
    {
      Id = tenantId,
      ServiceName = tenantName,
      DbType = _connectionStrings.DBType,
      Host = _connectionStrings.Host,
      Port = _connectionStrings.Port,
      UserName = _connectionStrings.UserName,
      Password = _connectionStrings.Password
    };
  }

  /// <summary>
  /// 执行Sql(查询).
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="strSql">sql语句.</param>
  /// <returns></returns>
  public async Task<int> ExecuteSql(DbLinkEntity link, string strSql)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    int flag = 0;
    if (_sqlSugarClient.CurrentConnectionConfig.DbType == SqlSugar.DbType.Oracle)
      flag = await _sqlSugarClient.Ado.ExecuteCommandAsync(strSql.TrimEnd(';'));
    else
      flag = await _sqlSugarClient.Ado.ExecuteCommandAsync(strSql);

    return flag;
  }

  /// <summary>
  /// 条件动态过滤.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="strSql">sql语句.</param>
  /// <returns>条件是否成立.</returns>
  public bool WhereDynamicFilter(DbLinkEntity link, string strSql)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    return _sqlSugarClient.Ado.SqlQuery<dynamic>(strSql).Count > 0;
  }

  /// <summary>
  /// 执行Sql(新增、修改).
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="table">表名.</param>
  /// <param name="dicList">数据.</param>
  /// <param name="primaryField">主键字段.</param>
  /// <returns></returns>
  public async Task<int> ExecuteSql(DbLinkEntity link, string table, List<Dictionary<string, object>> dicList, string primaryField = "")
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    int flag = 0;
    if (string.IsNullOrEmpty(primaryField))
    {
      foreach (var item in dicList) flag = await _sqlSugarClient.Insertable(item).AS(table).ExecuteCommandAsync();
    }
    else
    {
      foreach (var item in dicList) flag = await _sqlSugarClient.Updateable(item).AS(table).WhereColumns(primaryField).ExecuteCommandAsync();
    }
    return flag;
  }

  /// <summary>
  /// 执行Sql 新增 并返回自增长Id.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="table">表名.</param>
  /// <param name="dicList">数据.</param>
  /// <param name="primaryField">主键字段.</param>
  /// <returns>id.</returns>
  public async Task<int> ExecuteReturnIdentityAsync(DbLinkEntity link, string table, List<Dictionary<string, object>> dicList, string primaryField = "")
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    int flag = 0;
    if (string.IsNullOrEmpty(primaryField))
      flag = await _sqlSugarClient.Insertable(dicList).AS(table).ExecuteReturnIdentityAsync();

    return flag;
  }

  /// <summary>
  /// 创建表.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="tableModel">表对象.</param>
  /// <param name="tableFieldList">字段对象.</param>
  /// <returns></returns>
  public async Task<bool> Create(DbLinkEntity link, DbTableModel tableModel, List<DbTableFieldModel> tableFieldList)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);
    CreateTable(tableModel, tableFieldList);
    return true;
  }

  /// <summary>
  /// sqlsugar添加表字段.
  /// </summary>
  /// <param name="tableName">表名.</param>
  /// <param name="tableFieldList">表字段集合.</param>
  public void AddTableColumn(DbLinkEntity link, string tableName, List<DbTableFieldModel> tableFieldList)
  {
    try
    {
      if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
        _sqlSugarClient = ChangeDataBase(link);
      var cloumnList = tableFieldList.Adapt<List<DbColumnInfo>>();
      DelDataLength(cloumnList);
      foreach (var item in cloumnList)
      {
        _sqlSugarClient.DbMaintenance.AddColumn(tableName, item);
        if (_sqlSugarClient.CurrentConnectionConfig.DbType != SqlSugar.DbType.MySql)
          _sqlSugarClient.DbMaintenance.AddColumnRemark(item.DbColumnName, tableName, item.ColumnDescription);
      }
      //if (_sqlSugarClient.CurrentConnectionConfig.DbType == SqlSugar.DbType.MySql)
      //    AddColumnMySql(tableName, tableFieldList);
    }
    catch (Exception ex)
    {
      throw new Exception(ex.Message);
    }
  }

  /// <summary>
  /// 删除表.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="table">表名.</param>
  /// <returns></returns>
  public bool Delete(DbLinkEntity link, string table)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    try
    {
      _sqlSugarClient.DbMaintenance.DropTable(table);
      return true;
    }
    catch (Exception)
    {
      throw;
    }
  }

  /// <summary>
  /// 修改表.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="oldTable">原数据.</param>
  /// <param name="tableModel">表对象.</param>
  /// <param name="tableFieldList">字段对象.</param>
  /// <returns></returns>
  public async Task<bool> Update(DbLinkEntity link, string oldTable, DbTableModel tableModel, List<DbTableFieldModel> tableFieldList)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);
    _sqlSugarClient.DbMaintenance.DropTable(oldTable);
    try
    {
      CreateTable(tableModel, tableFieldList);
    }
    catch (Exception ex)
    {
      return false;
    }
    return true;
  }

  /// <summary>
  /// 根据链接获取分页数据.
  /// </summary>
  /// <returns></returns>
  public PageResult<Dictionary<string, object>> GetInterFaceData(DbLinkEntity link, string strSql, VisualDevModelListQueryInput pageInput, MainBeltViceQueryModel columnDesign, List<IConditionalModel> dataPermissions, Dictionary<string, string> outColumnName = null)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id) _sqlSugarClient = ChangeDataBase(link);

    try
    {
      int total = 0;

      if (_sqlSugarClient.CurrentConnectionConfig.DbType == SqlSugar.DbType.Oracle) strSql = strSql.Replace(";", string.Empty);

      var sidx = pageInput.sidx.IsNotEmptyOrNull() && pageInput.sort.IsNotEmptyOrNull(); // 按前端参数排序
      var defaultSidx = columnDesign.defaultSidx.IsNotEmptyOrNull() && columnDesign.sort.IsNotEmptyOrNull(); // 按模板默认排序

      var querJson = new List<IConditionalModel>();
      if (pageInput.queryJson.IsNotEmptyOrNull()) querJson = _sqlSugarClient.Utilities.JsonToConditionalModels(pageInput.queryJson);

      var superQueryJson = new List<IConditionalModel>();
      if (pageInput.superQueryJson.IsNotEmptyOrNull()) superQueryJson = _sqlSugarClient.Utilities.JsonToConditionalModels(pageInput.superQueryJson);
      // var sql = _sqlSugarClient.SqlQueryable<object>(strSql)
      //    .Where(querJson).Where(superQueryJson).Where(dataPermissions).ToSqlString();
      DataTable dt = _sqlSugarClient.CopyNew().SqlQueryable<object>(strSql)
          .Where(querJson).Where(superQueryJson).Where(dataPermissions)
          .OrderByIF(sidx, pageInput.sidx + " " + pageInput.sort).OrderByIF(!sidx && defaultSidx, columnDesign.defaultSidx + " " + columnDesign.sort)
          .ToDataTablePage(pageInput.currentPage, pageInput.pageSize, ref total);

      // 如果有字段别名 替换 ColumnName
      if (outColumnName != null && outColumnName.Count > 0)
      {
        var resultKey = string.Empty;
        for (var i = 0; i < dt.Columns.Count; i++)
          dt.Columns[i].ColumnName = outColumnName.TryGetValue(dt.Columns[i].ColumnName.ToUpper(), out resultKey) == true ? outColumnName[dt.Columns[i].ColumnName.ToUpper()] : dt.Columns[i].ColumnName.ToUpper();
      }

      return new PageResult<Dictionary<string, object>>()
      {
        pagination = new PageResult()
        {
          currentPage = pageInput.currentPage,
          pageSize = pageInput.pageSize,
          total = total
        },
        list = dt.ToObject<List<Dictionary<string, string>>>().ToObject<List<Dictionary<string, object>>>()
      };
    }
    catch (Exception ex)
    {
      throw;
    }
  }

  /// <summary>
  /// 表是否存在.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="table">表名.</param>
  /// <returns></returns>
  public bool IsAnyTable(DbLinkEntity link, string table)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    return _sqlSugarClient.DbMaintenance.IsAnyTable(table, false);
  }

  /// <summary>
  /// 表字段是否存在.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="table">表名.</param>
  /// <param name="column">表字段名.</param>
  /// <returns></returns>
  public bool IsAnyColumn(DbLinkEntity link, string table, string column)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    return _sqlSugarClient.DbMaintenance.IsAnyColumn(table, column, false);
  }

  /// <summary>
  /// 获取表字段列表.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="tableName">表名.</param>
  /// <returns>TableFieldListModel.</returns>
  public List<DbTableFieldModel> GetFieldList(DbLinkEntity? link, string? tableName)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id) _sqlSugarClient = ChangeDataBase(link);

    List<DbTableFieldModel> list;
    if (link.DbType == SqlSugar.DbType.PostgreSQL.ToString())
    {
      var sql = @"SELECT pcolumn.table_name AS tableName,pcolumn.column_name AS field,pcolumn.udt_name AS dataType,
pcolumn.column_default as defaults,col_description(pclass.oid, pcolumn.ordinal_position) AS fieldName,
CASE WHEN pcolumn.numeric_scale>0 THEN pcolumn.numeric_precision ELSE COALESCE(pcolumn.character_maximum_length,0) END AS dataLength,
CASE WHEN pcolumn.is_nullable = 'YES' THEN 1 ELSE 0 END AS allowNull,
CASE WHEN pcolumn.column_default LIKE 'nextval%' THEN true ELSE false END AS identity,
CASE WHEN pkey.colname = pcolumn.column_name THEN true ELSE false END AS primaryKey
FROM information_schema.columns pcolumn
INNER JOIN pg_class pclass ON pcolumn.table_name = pclass.relname
LEFT JOIN (
  SELECT  pg_class.relname,pg_attribute.attname AS colname FROM 
  pg_constraint  INNER JOIN pg_class 
  ON pg_constraint.conrelid = pg_class.oid 
  INNER JOIN pg_attribute ON pg_attribute.attrelid = pg_class.oid 
  and  pg_attribute.attnum = pg_constraint.conkey[1]
  INNER JOIN pg_type ON pg_type.oid = pg_attribute.atttypid
  where pg_constraint.contype='p'
) pkey ON pcolumn.table_name = pkey.relname
WHERE pcolumn.table_name='{0}' ORDER BY ordinal_position";
      list = _sqlSugarClient.SqlQueryable<DbTableFieldModel>(string.Format(sql, tableName)).ToList();
    }
    else
    {
      list = _sqlSugarClient.DbMaintenance.GetColumnInfosByTableName(tableName, false).Adapt<List<DbTableFieldModel>>();
    }
    return list;
  }

  public List<string> GetPrimaries(DbLinkEntity? link, string tableName)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id) _sqlSugarClient = ChangeDataBase(link);

    return _sqlSugarClient.DbMaintenance.GetPrimaries(tableName);
  }

  /// <summary>
  /// 获取表数据.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="tableName">表名.</param>
  /// <returns></returns>
  public DataTable GetData(DbLinkEntity link, string tableName)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);
    return _sqlSugarClient.Queryable<dynamic>().AS(tableName).ToDataTable();
  }

  /// <summary>
  /// 根据链接获取数据.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="strSql">sql语句.</param>
  /// <param name="parameters">参数.</param>
  /// <returns></returns>
  public DataTable GetInterFaceData(DbLinkEntity link, string strSql, params SugarParameter[] parameters)
  {
    try
    {
      if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
        _sqlSugarClient = ChangeDataBase(link);

      if (_sqlSugarClient.CurrentConnectionConfig.DbType == SqlSugar.DbType.Oracle)
        strSql = strSql.Replace(";", string.Empty);

      return _sqlSugarClient.Ado.GetDataTable(strSql, parameters);
    }
    catch (Exception)
    {

      throw Oops.Oh(ErrorCode.D1511);
    }
  }

  /// <summary>
  /// 执行增删改sql.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="strSql">sql语句.</param>
  /// <param name="parameters">参数.</param>
  public void ExecuteCommand(DbLinkEntity link, string strSql, params SugarParameter[] parameters)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    if (_sqlSugarClient.CurrentConnectionConfig.DbType == SqlSugar.DbType.Oracle)
      strSql = strSql.Replace(";", string.Empty);

    _sqlSugarClient.Ado.ExecuteCommand(strSql, parameters);
  }

  /// <summary>
  /// 获取表信息.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="tableName">表名.</param>
  /// <returns></returns>
  public DatabaseTableInfoOutput GetDataBaseTableInfo(DbLinkEntity link, string tableName)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    var data = new DatabaseTableInfoOutput()
    {
      tableInfo = _sqlSugarClient.DbMaintenance.GetTableInfoList(false).Find(m => m.Name == tableName).Adapt<TableInfoOutput>(),
      tableFieldList = GetFieldList(link, tableName).Adapt<List<TableFieldOutput>>()
      //tableFieldList = _sqlSugarClient.DbMaintenance.GetColumnInfosByTableName(tableName, false).Adapt<List<TableFieldOutput>>()
    };

    data.tableFieldList = ViewDataTypeConversion(data.tableFieldList, _sqlSugarClient.CurrentConnectionConfig.DbType);

    return data;
  }

  /// <summary>
  /// 获取数据库表信息.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <returns></returns>
  public List<DatabaseTableListOutput> GetDBTableList(DbLinkEntity link)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    var dbType = link.DbType;
    var sql = DBTableSql(dbType);
    var modelList = _sqlSugarClient.Ado.SqlQuery<DynamicDbTableModel>(sql).ToList();
    return modelList.Select(x => new DatabaseTableListOutput { table = x.F_TABLE, tableName = x.F_TABLENAME, sum = x.F_SUM.ParseToInt() }).ToList();
    //return modelList.Adapt<List<DatabaseTableListOutput>>();
  }

  /// <summary>
  /// 获取数据库表信息.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <returns></returns>
  public List<DbTableInfo> GetTableInfos(DbLinkEntity link)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    return _sqlSugarClient.DbMaintenance.GetTableInfoList(false);
  }

  /// <summary>
  /// 获取数据表分页(SQL语句).
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="dbSql">数据SQL.</param>
  /// <param name="pageIndex">页数.</param>
  /// <param name="pageSize">条数.</param>
  /// <returns></returns>
  public async Task<dynamic> GetDataTablePage(DbLinkEntity link, string dbSql, int pageIndex, int pageSize)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    RefAsync<int> totalNumber = 0;
    var list = await _sqlSugarClient.SqlQueryable<object>(dbSql).ToDataTablePageAsync(pageIndex, pageSize, totalNumber);

    return PageResult<dynamic>.SqlSugarPageResult(new SqlSugarPagedList<dynamic>()
    {
      list = ToDynamicList(list),
      pagination = new Pagination()
      {
        CurrentPage = pageIndex,
        PageSize = pageSize,
        Total = totalNumber
      }
    });
  }

  /// <summary>
  /// 获取数据表分页(实体).
  /// </summary>
  /// <typeparam name="TEntity">T.</typeparam>
  /// <param name="link">数据连接.</param>
  /// <param name="pageIndex">页数.</param>
  /// <param name="pageSize">条数.</param>
  /// <returns></returns>
  public async Task<List<TEntity>> GetDataTablePage<TEntity>(DbLinkEntity link, int pageIndex, int pageSize)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    return await _sqlSugarClient.Queryable<TEntity>().ToPageListAsync(pageIndex, pageSize);
  }

  /// <summary>
  /// 同步数据.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="dt">同步数据.</param>
  /// <param name="table">表.</param>
  /// <returns></returns>
  public async Task<bool> SyncData(DbLinkEntity link, DataTable dt, string table)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    List<Dictionary<string, object>> dc = _sqlSugarClient.Utilities.DataTableToDictionaryList(dt); // 5.0.23版本支持
    var isOk = await _sqlSugarClient.Insertable(dc).AS(table).ExecuteCommandAsync();
    return isOk > 0;
  }

  /// <summary>
  /// 同步表操作.
  /// </summary>
  /// <param name="linkFrom">原数据库.</param>
  /// <param name="linkTo">目前数据库.</param>
  /// <param name="table">表名称.</param>
  /// <param name="type">操作类型.</param>
  /// <param name="fieldType">数据类型.</param>
  public void SyncTable(DbLinkEntity linkFrom, DbLinkEntity linkTo, string table, int type, Dictionary<string, string> fieldType)
  {
    try
    {
      switch (type)
      {
        case 2:
          {
            if (linkFrom != null)
              _sqlSugarClient = ChangeDataBase(linkFrom);
            var columns = _sqlSugarClient.DbMaintenance.GetColumnInfosByTableName(table, false);
            if (linkTo != null)
              _sqlSugarClient = ChangeDataBase(linkTo);
            DelDataLength(columns, fieldType);
            _sqlSugarClient.DbMaintenance.CreateTable(table, columns);
          }
          break;
        case 3:
          {
            if (linkTo != null)
              _sqlSugarClient = ChangeDataBase(linkTo);
            _sqlSugarClient.DbMaintenance.TruncateTable(table);
          }
          break;
      }
    }
    catch (Exception ex)
    {
      throw;
    }
  }

  /// <summary>
  /// 使用存储过程.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <param name="stored">存储过程名称.</param>
  /// <param name="parameters">参数.</param>
  public void UseStoredProcedure(DbLinkEntity link, string stored, List<SugarParameter> parameters)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    _sqlSugarClient.Ado.UseStoredProcedure().GetDataTable(stored, parameters);
  }

  /// <summary>
  /// 测试数据库连接.
  /// </summary>
  /// <param name="link">数据连接.</param>
  /// <returns></returns>
  public bool IsConnection(DbLinkEntity link)
  {
    if (link != null && _sqlSugarClient.CurrentConnectionConfig.ConfigId != link.Id)
      _sqlSugarClient = ChangeDataBase(link);

    if (_sqlSugarClient.Ado.IsValidConnection())
      return true;
    else
      return false;
  }

  /// <summary>
  /// 视图数据类型转换.
  /// </summary>
  /// <param name="fields">字段数据.</param>
  /// <param name="databaseType">数据库类型.</param>
  public List<TableFieldOutput> ViewDataTypeConversion(List<TableFieldOutput> fields, SqlSugar.DbType databaseType)
  {
    foreach (var item in fields)
    {
      item.dataType = item.dataType.ToLower();
      switch (item.dataType)
      {
        case "string":
          {
            item.dataType = "varchar";
            if (item.dataLength.ParseToInt() > 2000)
            {
              item.dataType = "text";
              item.dataLength = "50";
            }
          }

          break;
        case "single":
          item.dataType = "decimal";
          break;
      }
    }

    return fields;
  }

  /// <summary>
  /// 转换数据库类型.
  /// </summary>
  /// <param name="dbType">数据库类型.</param>
  /// <returns></returns>
  public SqlSugar.DbType ToDbType(string dbType)
  {
    switch (dbType.ToLower())
    {
      case "sqlserver":
        return SqlSugar.DbType.SqlServer;
      case "mysql":
        return SqlSugar.DbType.MySql;
      case "oracle":
        return SqlSugar.DbType.Oracle;
      case "dm8":
      case "dm":
        return SqlSugar.DbType.Dm;
      case "kdbndp":
      case "kingbasees":
        return SqlSugar.DbType.Kdbndp;
      case "postgresql":
        return SqlSugar.DbType.PostgreSQL;
      default:
        throw Oops.Oh(ErrorCode.D1505);
    }
  }

  /// <summary>
  /// 转换连接字符串.
  /// </summary>
  /// <param name="dbLinkEntity">数据连接.</param>
  /// <returns></returns>
  public string ToConnectionString(DbLinkEntity dbLinkEntity)
  {
    switch (dbLinkEntity.DbType.ToLower())
    {
      case "sqlserver":
        return string.Format("Data Source={0},{4};Initial Catalog={1};User ID={2};Password={3};MultipleActiveResultSets=true", dbLinkEntity.Host, dbLinkEntity.ServiceName, dbLinkEntity.UserName, dbLinkEntity.Password, dbLinkEntity.Port);
      case "oracle":
        var oracleParam = dbLinkEntity.OracleParam.ToObject<OracleParamModel>();
        return string.Format("Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST={0})(PORT={1}))(CONNECT_DATA=(SERVER = DEDICATED)(SERVICE_NAME={2})));User Id={3};Password={4}", dbLinkEntity.Host, dbLinkEntity.Port.ToString(), oracleParam.oracleService, dbLinkEntity.UserName, dbLinkEntity.Password);
      case "mysql":
        return string.Format("server={0};port={1};database={2};user={3};password={4};AllowLoadLocalInfile=true", dbLinkEntity.Host, dbLinkEntity.Port.ToString(), dbLinkEntity.ServiceName, dbLinkEntity.UserName, dbLinkEntity.Password);
      case "dm8":
      case "dm":
        return string.Format("server={0};port={1};database={2};User Id={3};PWD={4}", dbLinkEntity.Host, dbLinkEntity.Port.ToString(), dbLinkEntity.ServiceName, dbLinkEntity.UserName, dbLinkEntity.Password);
      case "kdbndp":
      case "kingbasees":
        return string.Format("server={0};port={1};database={2};UID={3};PWD={4}", dbLinkEntity.Host, dbLinkEntity.Port.ToString(), dbLinkEntity.ServiceName, dbLinkEntity.UserName, dbLinkEntity.Password);
      case "postgresql":
        return string.Format("server={0};port={1};Database={2};User Id={3};Password={4}", dbLinkEntity.Host, dbLinkEntity.Port.ToString(), dbLinkEntity.ServiceName, dbLinkEntity.UserName, dbLinkEntity.Password);
      default:
        throw Oops.Oh(ErrorCode.D1505);
    }
  }

  /// <summary>
  /// DataTable转DicList.
  /// </summary>
  /// <param name="dt"></param>
  /// <returns></returns>
  private List<Dictionary<string, object>> DataTableToDicList(DataTable dt)
  {
    return dt.AsEnumerable().Select(row => dt.Columns.Cast<DataColumn>().ToDictionary(column => column.ColumnName.ToLower(), column => row[column])).ToList();
  }

  /// <summary>
  /// 将DataTable 转换成 List<dynamic>
  /// reverse 反转：控制返回结果中是只存在 FilterField 指定的字段,还是排除.
  /// [flase 返回FilterField 指定的字段]|[true 返回结果剔除 FilterField 指定的字段]
  /// FilterField  字段过滤，FilterField 为空 忽略 reverse 参数；返回DataTable中的全部数
  /// </summary>
  /// <param name="table">DataTable</param>
  /// <param name="reverse">
  /// 反转：控制返回结果中是只存在 FilterField 指定的字段,还是排除.
  /// [flase 返回FilterField 指定的字段]|[true 返回结果剔除 FilterField 指定的字段]
  /// </param>
  /// <param name="FilterField">字段过滤，FilterField 为空 忽略 reverse 参数；返回DataTable中的全部数据</param>
  /// <returns>List<dynamic></dynamic></returns>
  public static List<dynamic> ToDynamicList(DataTable table, bool reverse = true, params string[] FilterField)
  {
    var modelList = new List<dynamic>();
    foreach (DataRow row in table.Rows)
    {
      dynamic model = new ExpandoObject();
      var dict = (IDictionary<string, object>)model;
      foreach (DataColumn column in table.Columns)
      {
        if (FilterField.Length != 0)
        {
          if (reverse)
          {
            if (!FilterField.Contains(column.ColumnName))
            {
              dict[column.ColumnName] = row[column];
            }
          }
          else
          {
            if (FilterField.Contains(column.ColumnName))
            {
              dict[column.ColumnName] = row[column];
            }
          }
        }
        else
        {
          dict[column.ColumnName.ToLower()] = row[column];
        }
      }

      modelList.Add(model);
    }

    return modelList;
  }

  /// <summary>
  /// 数据库表SQL.
  /// </summary>
  /// <param name="dbType">数据库类型.</param>
  /// <returns></returns>
  private string DBTableSql(string dbType)
  {
    StringBuilder sb = new StringBuilder();
    switch (dbType.ToLower())
    {
      case "sqlserver":
        //sb.Append(@"DECLARE @TABLEINFO TABLE ( NAME VARCHAR(50) , SUMROWS VARCHAR(11) , RESERVED VARCHAR(50) , DATA VARCHAR(50) , INDEX_SIZE VARCHAR(50) , UNUSED VARCHAR(50) , PK VARCHAR(50) ) DECLARE @TABLENAME TABLE ( NAME VARCHAR(50) ) DECLARE @NAME VARCHAR(50) DECLARE @PK VARCHAR(50) INSERT INTO @TABLENAME ( NAME ) SELECT O.NAME FROM SYSOBJECTS O , SYSINDEXES I WHERE O.ID = I.ID AND O.XTYPE = 'U' AND I.INDID < 2 ORDER BY I.ROWS DESC , O.NAME WHILE EXISTS ( SELECT 1 FROM @TABLENAME ) BEGIN SELECT TOP 1 @NAME = NAME FROM @TABLENAME DELETE @TABLENAME WHERE NAME = @NAME DECLARE @OBJECTID INT SET @OBJECTID = OBJECT_ID(@NAME) SELECT @PK = COL_NAME(@OBJECTID, COLID) FROM SYSOBJECTS AS O INNER JOIN SYSINDEXES AS I ON I.NAME = O.NAME INNER JOIN SYSINDEXKEYS AS K ON K.INDID = I.INDID WHERE O.XTYPE = 'PK' AND PARENT_OBJ = @OBJECTID AND K.ID = @OBJECTID INSERT INTO @TABLEINFO ( NAME , SUMROWS , RESERVED , DATA , INDEX_SIZE , UNUSED ) EXEC SYS.SP_SPACEUSED @NAME UPDATE @TABLEINFO SET PK = @PK WHERE NAME = @NAME END SELECT F.NAME AS F_TABLE,ISNULL(P.TDESCRIPTION,F.NAME) AS F_TABLENAME, F.RESERVED AS F_SIZE, RTRIM(F.SUMROWS) AS F_SUM, F.PK AS F_PRIMARYKEY FROM @TABLEINFO F LEFT JOIN ( SELECT NAME = CASE WHEN A.COLORDER = 1 THEN D.NAME ELSE '' END , TDESCRIPTION = CASE WHEN A.COLORDER = 1 THEN ISNULL(F.VALUE, '') ELSE '' END FROM SYSCOLUMNS A LEFT JOIN SYSTYPES B ON A.XUSERTYPE = B.XUSERTYPE INNER JOIN SYSOBJECTS D ON A.ID = D.ID AND D.XTYPE = 'U' AND D.NAME <> 'DTPROPERTIES' LEFT JOIN SYS.EXTENDED_PROPERTIES F ON D.ID = F.MAJOR_ID WHERE A.COLORDER = 1 AND F.MINOR_ID = 0 ) P ON F.NAME = P.NAME WHERE 1 = 1 ORDER BY F_TABLE");
        sb.Append(@"SELECT s.Name F_TABLE, Convert(nvarchar(max), tbp.value) as F_TABLENAME, b.ROWS F_SUM FROM sysobjects s LEFT JOIN sys.extended_properties as tbp ON s.id = tbp.major_id and tbp.minor_id = 0 AND ( tbp.Name = 'MS_Description' OR tbp.Name is null ) LEFT JOIN sysindexes AS b ON s.id = b.id WHERE s.xtype IN('U') AND (b.indid IN (0, 1))");
        break;
      case "oracle":
        //sb.Append(@"SELECT DISTINCT COL.TABLE_NAME AS F_TABLE,TAB.COMMENTS AS F_TABLENAME,0 AS F_SIZE,NVL(T.NUM_ROWS,0)AS F_SUM,COLUMN_NAME AS F_PRIMARYKEY FROM USER_CONS_COLUMNS COL INNER JOIN USER_CONSTRAINTS CON ON CON.CONSTRAINT_NAME=COL.CONSTRAINT_NAME INNER JOIN USER_TAB_COMMENTS TAB ON TAB.TABLE_NAME=COL.TABLE_NAME INNER JOIN USER_TABLES T ON T.TABLE_NAME=COL.TABLE_NAME WHERE CON.CONSTRAINT_TYPE NOT IN('C','R')ORDER BY COL.TABLE_NAME");
        sb.Append(@"SELECT table_name F_TABLE , (select COMMENTS from user_tab_comments where t.table_name=table_name ) as F_TABLENAME, T.NUM_ROWS F_SUM from user_tables t where table_name!='HELP' AND table_name NOT LIKE '%$%' AND table_name NOT LIKE 'LOGMNRC_%' AND table_name!='LOGMNRP_CTAS_PART_MAP' AND table_name!='LOGMNR_LOGMNR_BUILDLOG' AND table_name!='SQLPLUS_PRODUCT_PROFILE'");
        break;
      case "mysql":
        //sb.Append(@"SELECT T1.*,(SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.`COLUMNS`WHERE TABLE_SCHEMA=DATABASE()AND TABLE_NAME=T1.F_TABLE AND COLUMN_KEY='PRI')F_PRIMARYKEY FROM(SELECT TABLE_NAME F_TABLE,0 F_SIZE,TABLE_ROWS F_SUM,(SELECT IF(LENGTH(TRIM(TABLE_COMMENT))<1,TABLE_NAME,TABLE_COMMENT))F_TABLENAME FROM INFORMATION_SCHEMA.`TABLES`WHERE TABLE_SCHEMA=DATABASE())T1 ORDER BY T1.F_TABLE");
        sb.Append(@"select TABLE_NAME as F_TABLE,TABLE_ROWS as F_SUM ,TABLE_COMMENT as F_TABLENAME from information_schema.tables where TABLE_SCHEMA=(select database()) AND TABLE_TYPE='BASE TABLE'");
        break;
      case "dm8":
      case "dm":
        sb.Append(@"SELECT table_name F_TABLE , (select COMMENTS from user_tab_comments where t.table_name=table_name ) as F_TABLENAME, T.NUM_ROWS F_SUM from user_tables t where table_name!='HELP' AND table_name NOT LIKE '%$%' AND table_name NOT LIKE 'LOGMNRC_%' AND table_name!='LOGMNRP_CTAS_PART_MAP' AND table_name!='LOGMNR_LOGMNR_BUILDLOG' AND table_name!='SQLPLUS_PRODUCT_PROFILE'");
        break;
      case "kdbndp":
      case "kingbasees":
        sb.Append(@"select a.relname F_TABLE,a.n_live_tup F_SUM,b.description F_TABLENAME from sys_stat_user_tables a left outer join sys_description b on a.relid = b.objoid where a.schemaname='public' and b.objsubid='0'");
        break;
      case "postgresql":
        //modified by PhilPan 2023-04-12,修复大小写错误
        sb.Append(@"select cast(relname as varchar) as F_TABLE, cast(reltuples as varchar) as F_SUM, cast(obj_description(relfilenode,'pg_class') as varchar) as F_TABLENAME from pg_class c inner join pg_namespace n on n.oid = c.relnamespace and nspname='public' inner join pg_tables z on z.tablename=c.relname where relkind = 'r' and relname not like 'pg_%' and relname not like 'sql_%' and schemaname='public' order by relname");
        break;
      default:
        throw new Exception("不支持");
    }

    return sb.ToString();
  }

  /// <summary>
  /// MySql创建表单+注释.
  /// </summary>
  /// <param name="tableModel">表.</param>
  /// <param name="tableFieldList">字段.</param>
  private async Task CreateTableMySql(DbTableModel tableModel, List<DbTableFieldModel> tableFieldList)
  {
    StringBuilder strSql = new StringBuilder();
    strSql.Append("CREATE TABLE `" + tableModel.table + "` (\r\n");
    foreach (var item in tableFieldList)
    {
      if (item.primaryKey && item.allowNull == 1)
        throw Oops.Oh(ErrorCode.D1509);
      strSql.Append(" `" + item.field + "` " + item.dataType.ToUpper() + "");
      if (item.dataType == "varchar" || item.dataType == "nvarchar" || item.dataType == "decimal")
        strSql.Append(" (" + item.dataLength + ") ");
      if (item.primaryKey)
        strSql.Append(" primary key ");
      if (item.allowNull != 1)
        strSql.Append(" NOT NULL ");
      else
        strSql.Append(" NULL ");
      if (item.identity)
        strSql.Append(" AUTO_INCREMENT ");
      strSql.Append("COMMENT '" + item.fieldName + "'");
      strSql.Append(",");
    }

    strSql.Remove(strSql.Length - 1, 1);
    strSql.Append("\r\n");
    strSql.Append(") COMMENT = '" + tableModel.tableName + "';");
    await _sqlSugarClient.Ado.ExecuteCommandAsync(strSql.ToString());
  }

  /// <summary>
  /// MySql创建表单+注释.
  /// </summary>
  /// <param name="table">表.</param>
  /// <param name="tableFieldList">字段.</param>
  private void AddColumnMySql(string table, List<DbTableFieldModel> tableFieldList)
  {
    StringBuilder strSql = new StringBuilder();
    foreach (var item in tableFieldList)
    {
      if (item.dataType == "varchar" || item.dataType == "nvarchar" || item.dataType == "decimal")
        strSql.AppendFormat("ALTER TABLE {0} MODIFY {1} {2}({3}) COMMENT '{4}';", table, item.field, item.dataType, item.dataLength, item.fieldName);
      else
        strSql.AppendFormat("ALTER TABLE {0} MODIFY {1} {2} COMMENT '{3}';", table, item.field, item.dataType, item.fieldName);
    }

    _sqlSugarClient.Ado.ExecuteCommand(strSql.ToString());
  }

  /// <summary>
  /// sqlsugar建表.
  /// </summary>
  /// <param name="tableModel">表.</param>
  /// <param name="tableFieldList">字段.</param>
  private void CreateTable(DbTableModel tableModel, List<DbTableFieldModel> tableFieldList)
  {
    var cloumnList = tableFieldList.Adapt<List<DbColumnInfo>>();
    DelDataLength(cloumnList);
    var isOk = _sqlSugarClient.DbMaintenance.CreateTable(tableModel.table, cloumnList);
    _sqlSugarClient.DbMaintenance.AddTableRemark(tableModel.table, tableModel.tableName);
    //mysql不需要单独添加字段注释
    if (_sqlSugarClient.CurrentConnectionConfig.DbType != SqlSugar.DbType.MySql)
    {
      foreach (var item in cloumnList)
      {
        _sqlSugarClient.DbMaintenance.AddColumnRemark(item.DbColumnName, tableModel.table, item.ColumnDescription);
      }
    }
  }

  /// <summary>
  /// 删除列长度（SqlSugar除了字符串其他不需要类型长度）.
  /// </summary>
  /// <param name="dbColumnInfos"></param>
  private void DelDataLength(List<DbColumnInfo> dbColumnInfos, Dictionary<string, string> dataTypeDic = null)
  {
    foreach (var item in dbColumnInfos)
    {
      if (item.DataType.ToLower() != "varchar")
        item.Length = 0;
      if (item.DataType.ToLower() != "varchar")
        item.DecimalDigits = 0;
      if (dataTypeDic == null)
      {
        item.DataType = DataTypeConversion(item.DataType.ToLower(), _sqlSugarClient.CurrentConnectionConfig.DbType);
      }
      else
      {
        if (dataTypeDic.ContainsKey(item.DataType.ToLower()))
        {
          item.DataType = dataTypeDic[item.DataType.ToLower().Replace("(默认)", string.Empty)];
        }
      }
    }
  }

  /// <summary>
  /// 数据库数据类型转换.
  /// </summary>
  /// <param name="dataType">数据类型.</param>
  /// <param name="databaseType">数据库类型</param>
  /// <returns></returns>
  private string DataTypeConversion(string dataType, SqlSugar.DbType databaseType)
  {
    if (databaseType.Equals(SqlSugar.DbType.Oracle))
    {
      switch (dataType)
      {
        case "text":
          return "CLOB";
        case "decimal":
          return "DECIMAL(38,38)";
        case "datetime":
          return "DATE";
        case "bigint":
          return "NUMBER";
        default:
          return dataType.ToUpper();
      }
    }
    else if (databaseType.Equals(SqlSugar.DbType.Dm))
    {
      return dataType.ToUpper();
    }
    else if (databaseType.Equals(SqlSugar.DbType.Kdbndp))
    {
      switch (dataType)
      {
        case "int":
          return "NUMBER";
        case "datetime":
          return "DATE";
        case "bigint":
          return "INT8";
        default:
          return dataType.ToUpper();
      }
    }
    else if (databaseType.Equals(SqlSugar.DbType.PostgreSQL))
    {
      switch (dataType)
      {
        case "varchar":
          return "varchar";
        case "int":
          return "INT4";
        case "datetime":
          return "timestamp";
        case "decimal":
          return "DECIMAL";
        case "bigint":
          return "INT8";
        case "text":
          return "TEXT";
        default:
          return dataType;
      }
    }
    else
    {
      return dataType;
    }
  }
}