using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Data.SqlClient;
using System.Data;

public class SQL_Module : MonoBehaviour
{
    public static SqlConnection conn;
    public static SqlCommand cmd;
    public static SqlDataReader dr;
    public static SqlDataAdapter da;
    public static string ConString;
    public static string ConString1;
    public static string ConString2,ConString3;
    public static string SQL1;
    public static bool T_SQL;
 
    public static void TestSQL(string TestConString){
        using (SqlConnection connection = new SqlConnection(TestConString))
        {
            try{
                connection.Open();
                Debug.Log("SQL Connection Successful");
                T_SQL=true;
            }
            catch (SqlException e){
                Debug.LogError("SQL Connection Error: " + e.Message);
                T_SQL=false;
            }
            finally{
                connection.Close();
            }
        }
    }
    public static void ConnOpen_SQL(){
        try{
            conn.Close(); 
            if (conn.State == ConnectionState.Closed){
                conn = new SqlConnection(ConString);
                conn.Open();
            }
        }catch{
            conn = new SqlConnection(ConString);
            conn.Open();
        }
        
    }
     public static void ConnOpen_SQL_備(){
        try{
            conn.Close(); 
            if (conn.State == ConnectionState.Closed){
                conn = new SqlConnection(ConString3);
                conn.Open();
            }
        }catch{
            conn = new SqlConnection(ConString3);
            conn.Open();
        }
        
    }
    public static void ConnOpen_SQL圖()
    {
        try
        {
            conn.Close();
            if (conn.State == ConnectionState.Closed)
            {
                conn = new SqlConnection(ConString1);
                conn.Open();
            }
        }
        catch
        {
            conn = new SqlConnection(ConString1);
            conn.Open();
        }

    }
    public static void ConnOpen_SQL音()
    {
        try
        {
            conn.Close();
            if (conn.State == ConnectionState.Closed)
            {
                conn = new SqlConnection(ConString2);
                conn.Open();
            }
        }
        catch
        {
            conn = new SqlConnection(ConString2);
            conn.Open();
        }

    }
    public static void CmdSet_For_DGV()
    {
        try{
            da = new SqlDataAdapter(SQL1,ConString);
        }catch{
 
        }
    }
    public static void CmdSet_For_DGV_pic()
    {
        try{
            da = new SqlDataAdapter(SQL1,ConString1);
        }catch{
 
        }
    }
    
    public static void CmdSet_For_dr(){
        try{
            cmd = conn.CreateCommand();
            cmd.CommandText = SQL1;
            cmd.Connection = conn;
            dr = cmd.ExecuteReader();
        }catch{
        }
    }

    public static void CmdSet_For_pic(byte[] 檔案)
    {
        try
        {
            cmd.Parameters.Clear();
            cmd = conn.CreateCommand();
            cmd.CommandText = SQL1;
            cmd.Connection = conn;
            cmd.Parameters.AddWithValue("@binary_file", 檔案);
            dr = cmd.ExecuteReader();
        }
        catch
        {
        }
    }
    public static void CmdSet_For_post(string 內容)
    {
        try
        {
            cmd.Parameters.Clear();
            cmd = conn.CreateCommand();
            cmd.CommandText = SQL1;
            cmd.Connection = conn;
            cmd.Parameters.AddWithValue("@內容", 內容);
            dr = cmd.ExecuteReader();
        }
        catch
        {
        }
    }
}