using System;
using System.Collections.Generic;
using Dapper;
using Microsoft.Extensions.Configuration;

namespace Foo.Bar
{
    public static class DapperMappers
    {
        public static void Init(IConfiguration configuration)
        {
            var mappings = configuration.GetSection("ModelMappings");
            foreach (var typeSection in mappings.GetChildren())
            {
                var columnNames = typeSection.Get<IDictionary<string, string>>();
                var mapType = Type.GetType(typeSection.Key);

                if (mapType == null)
                    continue;

                SqlMapper.SetTypeMap(mapType, new CustomPropertyTypeMap(
                    mapType,
                    (type, columnName) =>
                        type.GetProperty(columnNames.ContainsKey(columnName) ? columnNames[columnName] : columnName)));
            }
        }
    }
}