using YLErp;

namespace System.Web.Mvc
{
    /// <summary>
    /// 用于处理确认书文件帮助类
    /// </summary>
    public static class DocFileHelper
    {
        /// <summary>
        /// 检查确认书文件返回的结果路径是否能够正确对应物理文件，如果不能够对应，尝试修补
        /// </summary>
        public static List<string> CheckResultDocFilePath(IEnumerable<string> files)
        {
            return files?.Where(n => !string.IsNullOrWhiteSpace(n)).Select(n =>
            {
                var physicalPath = OtcAppContext.MapPath(n.TrimStart('.'));

                if (physicalPath.EndsWith("x"))
                {
                    if (!File.Exists(physicalPath))
                    {
                        physicalPath = physicalPath.Substring(0, physicalPath.Length - 1);

                        return File.Exists(physicalPath) ? n.Substring(0, n.Length - 1) : n;
                    }
                }
                else if (!File.Exists(physicalPath))
                {
                    return File.Exists(physicalPath + "x") ? n + "x" : n;
                }

                return n;

            }).ToList();
        }
    }
}