using System;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
using Common;
using System.Collections.Generic;

namespace LisPacsDataUpload
{
    public class SqlServerHelper
    {

        //
        public static string GetConnStr()
        {
            return ConfigurationManager.ConnectionStrings["SqlServerConnection"].ConnectionString;

        }

        public static DataTable ExecuteQuery(string query)
        {
            using (SqlConnection connection = new SqlConnection(GetConnStr()))
            {
                SqlCommand command = new SqlCommand(query, connection);
                try
                {
                    connection.Open();
                    SqlDataAdapter adapter = new SqlDataAdapter(command);
                    DataTable dataTable = new DataTable();
                    adapter.Fill(dataTable);
                    return dataTable;
                }
                catch (Exception ex)
                {
                    Console.WriteLine("查询数据时出现错误：" + ex.Message);
                    return null;
                }
            }
        }

        public static List<string> GetPdfUrlList(string querySql)
        {
            var pdfUrls = new List<string>();

            using (SqlConnection connection = new SqlConnection(GetConnStr()))
            {
                SqlCommand command = new SqlCommand(querySql, connection);

                try
                {
                    connection.Open();
                    SqlDataReader reader = command.ExecuteReader();

                    while (reader.Read())
                    {
                        // 假设 pdfUrl 列不为空，并且数据库中的数据类型与 string 兼容
                        string pdfUrl = reader.GetString(reader.GetOrdinal("pdfUrl"));
                        pdfUrls.Add(pdfUrl);
                    }
                }
                catch (Exception ex)
                {
                    LogHelper.Info("An error occurred: " + ex.Message);
                    // 在这里添加适当的错误处理逻辑，比如日志记录
                }
            }

            return pdfUrls;
        }

        public static DataRow ExecuteSingleRowQuery(string query)
        {

            try
            {
                using (SqlConnection connection = new SqlConnection(GetConnStr()))
                {
                    SqlCommand command = new SqlCommand(query, connection);
                
                        connection.Open();
                        SqlDataAdapter adapter = new SqlDataAdapter(command);
                        DataTable dataTable = new DataTable();
                        adapter.Fill(dataTable);
                        LogHelper.Info("dataTable.Rows.Count"+ dataTable.Rows.Count);
                        if (dataTable.Rows.Count > 0)
                        {
                            return dataTable.Rows[0];
                        }
                        else
                        {
                            return null;
                        }

                }
            }
            catch (Exception ex)
            {
                LogHelper.Info("查询数据时出现错误：" + ex.Message);
                return null;
            }
        }
    }
}