Imports System.Data.SqlClient
Imports MySql.Data.MySqlClient

Public Class BlvMySql

    ''' <summary>
    ''' 连接字符串
    ''' </summary>
    Private _ConnString As MySqlConnectionStringBuilder = New MySqlConnectionStringBuilder()

    ''' <summary>
    ''' MySQL 连接器
    ''' </summary>
    Public _mySqlConn As New MySqlConnection


    ''' <summary>
    ''' 初始化 MySQL 连接对象
    ''' </summary>
    ''' <param name="ServerAddress"></param>
    ''' <param name="port"></param>
    ''' <param name="DataBaseName"></param>
    ''' <param name="User"></param>
    ''' <param name="Password"></param>
    Sub New(ServerAddress As String, port As UInteger, DataBaseName As String, User As String, Password As String)
        _ConnString.Server = ServerAddress
        _ConnString.Port = port
        _ConnString.Database = DataBaseName
        _ConnString.UserID = User
        _ConnString.Password = Password
    End Sub


    ''' <summary>
    ''' 连接My SQL数据库
    ''' </summary>
    Public Function ConnMySQLBase() As Boolean
        Try
            _mySqlConn = New MySqlConnection(_ConnString.ConnectionString)
            _mySqlConn.Open()
        Catch ex As Exception
            Console.WriteLine($"Error Message:{ex.Message}")
            Return False
        End Try
        Return True
    End Function

#Region "MySQL增删改查"

    ''' <summary>
    ''' 插入MySQL数据
    ''' </summary>
    ''' <param name="strInsert"></param>
    ''' <returns></returns>
    Public Function InsertMySql(strInsert As String)
        Try
            Dim cmd As New MySqlCommand(strInsert, _mySqlConn)
            cmd.ExecuteNonQuery()
            _mySqlConn.Close()
            _mySqlConn.Dispose()
        Catch ex As Exception
            Console.WriteLine($"MySql Error:{ex.Message}")
            Return False
        End Try
        Return True
    End Function


    ''' <summary>
    ''' 修改MySQL数据
    ''' </summary>
    ''' <param name="strUpdate"></param>
    ''' <returns></returns>
    Public Function UpdateMySql(strUpdate As String)
        Dim result As Integer
        Try
            Dim cmd As New MySqlCommand(strUpdate, _mySqlConn)
            result = cmd.ExecuteNonQuery()
            _mySqlConn.Close()
            _mySqlConn.Dispose()
        Catch ex As Exception
            Console.WriteLine($"MySql Error:{ex.Message}")
        End Try
        Return result
    End Function


    ''' <summary>
    ''' 查询MySQL数据
    ''' </summary>
    ''' <param name="queryString">需要查询的列</param>
    ''' <returns></returns>
    Public Function Query(queryString As String) As DataTable
        Dim sda As MySqlDataAdapter = New MySqlDataAdapter(queryString, _ConnString.ConnectionString)
        Dim sqlDataSet As DataTable = New DataTable()

        Try
            sda.Fill(sqlDataSet)
        Catch ex As Exception
            MsgBox($"######{Now} - MySQL查询错误: {ex.Message} 查询语句： {queryString}")
        End Try

        Return sqlDataSet
    End Function


    ''' <summary>
    ''' 查询MySQL数据
    ''' </summary>
    ''' <param name="queryCol">需要查询的列</param>
    ''' <param name="TableName">需要查询的数据表名</param>
    ''' <param name="Conditions">需要查询的条件,默认为空</param>
    ''' <returns></returns>
    Public Function Query(queryCol As String, TableName As String, Optional Conditions As String = "") As DataTable
        Dim sql As String = $"select {queryCol} from {TableName} {Conditions}"
        Dim sda As MySqlDataAdapter = New MySqlDataAdapter(sql, _ConnString.ConnectionString)
        Dim sqlDataSet As DataTable = New DataTable()

        Try
            sda.Fill(sqlDataSet)
        Catch ex As Exception
            MsgBox($"######{Now} - MySQL查询错误: {ex.Message} 查询语句： {sql}")
        End Try

        Return sqlDataSet
    End Function

#End Region

#Region "多语种信息"


    ''' <summary>
    ''' 获取多语种版本信息
    ''' </summary>
    ''' <returns></returns>
    Public Function GetCloudVersionInfo() As DataTable
        Dim dtUser As DataTable = New DataTable()
        Dim queryStr As String = $"Select a.Language, a.Version  from tbl_multilingual a	
		Left Join tbl_multilingual_apps b on a.ApplicationID = b.ID 
		where b.Application = 'C系列配置工具'"
        Console.WriteLine($"获取多语种版本信息查询语句：{queryStr}")

        Dim sda As MySqlDataAdapter = New MySqlDataAdapter(queryStr, _ConnString.ConnectionString)
        Try
            sda.Fill(dtUser)
        Catch ex As Exception
            MsgBox($"######{Now} - MySQL查询错误: {ex.Message} 查询语句： ")
        End Try

        Return dtUser
    End Function


    ''' <summary>
    ''' 获取云端数据信息
    ''' </summary>
    ''' <returns></returns>
    Public Function GetCloudDataInfo(languageName As String) As DataTable
        Dim dtUser As DataTable = New DataTable()
        Dim queryStr As String = $"Select a.{languageName} from tbl_multilingual_data a
				left join tbl_multilingual b on a.ApplicationID = b.ApplicationID
				left join tbl_multilingual_apps c on b.ApplicationID = c.ID
		        where c.Application = 'C系列配置工具' And b.Language = '{languageName}';"

        Console.WriteLine($"获取云端数据信息查询语句：{queryStr}")
        Dim sda As MySqlDataAdapter = New MySqlDataAdapter(queryStr, _ConnString.ConnectionString)
        Try
            sda.Fill(dtUser)
        Catch ex As Exception
            MsgBox($"######{Now} - MySQL查询错误: {ex.Message} 查询语句： {queryStr}")
        End Try

        Return dtUser
    End Function


#End Region




End Class