using MediatR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Dapper;
using MySqlConnector;
using Microsoft.Extensions.Configuration;

namespace QRCodeService.Application.Queries
{
    public class LinkQueries : ILinkQueries
    {
        readonly string _connectionString;

        public LinkQueries(IConfiguration configuration)
        {
            _connectionString = configuration.GetConnectionString("default");
        }

        public async Task<Link> GetLinkAsync(string shortCode)
        {
            using(var connection = new MySqlConnection(_connectionString))
            {
                connection.Open();
                var link = await connection.QueryAsync<Link>(
                    @"SELECT ShortCode,FullUrl FROM Link WHERE ShortCode = @shortCode",new {shortCode });
                return link.SingleOrDefault();
            }
        }
    }
}