using System.Reflection;
using YLErp.Modules.SuperviseReportModule.SAC.Model;

namespace YLErp.Modules.SuperviseReportModule.SAC.Common
{
    class Sac_TranslateHelper
    {
        private static SacMap? Map = null;

        private static List<SacMap> GetSacInfo(PropertyInfo[] properties)
        {
            var result = new List<SacMap>();
            foreach (var item in properties)
            {
                var sacInfo = new SacMap(item.Name, item.Name);
                if (item.GetCustomAttributes(typeof(SacDescriptionAttribute)).FirstOrDefault() is SacDescriptionAttribute info)
                {
                    sacInfo.FieldName = info.FieldName;
                    sacInfo.FieldName_CN = info.FieldName_CN;
                    sacInfo.FieldLength = info.FieldLength;
                    sacInfo.Required = info.Required;
                    sacInfo.FieldDescription = info.FieldDescription;
                }
                var att = item.PropertyType.GetGenericArguments();
                if (att.Length == 0)
                {
                    att = new[] { item.PropertyType };
                }
                if (att.Length == 1 && att[0].Namespace.StartsWith("YLErp.Modules.SuperviseReportModule"))
                {
                    sacInfo.SubMaps.AddRange(GetSacInfo(att[0].GetProperties()));
                }
                //if(item.)
                result.Add(sacInfo);
            }
            return result;
        }

        private static void Init()
        {
            Map = new SacMap("Root", "报文");
            var root = typeof(ReportRootModel);
            var properties = root.GetProperties();
            Map.SubMaps.AddRange(GetSacInfo(properties));
        }

        public static SacMap TranslateFieldName(params string[] paths)
        {
            if (paths.Length == 0)
            {
                throw new ArgumentNullException(nameof(paths));
            }

            if (Map == null)
            {
                Init();
            }
            var map = Map;
            foreach (var item in paths)
            {
                if (item == "Root")
                {
                    continue;
                }
                if (map == null ||
                    map.SubMaps == null ||
                    (map = map.SubMaps.Where(O => O.FieldName == item).FirstOrDefault()) == null)
                {
                    map = new SacMap(item, item);
                }
            }
            return map;
        }

        public static string TranslateFieldName(string fieldName, string fileType = "")
        {
            if (Map == null)
            {
                Init();
            }
            SacMap map = Map;
            return getFieldName_CN(map, fieldName, fileType);
        }
        private static string getFieldName_CN(SacMap map, string fieldName, string fileType = "")
        {
            if (map.FieldName == fieldName)
            {
                return map.FieldName_CN;
            }

            if (map.SubMaps.Count > 0)
            {
                foreach (var m in map.SubMaps)
                {
                    if (map.FieldName == "Body")
                    {
                        if (!string.IsNullOrWhiteSpace(fileType) && m.FieldName != fileType)
                        {
                            continue;
                        }
                    }
                    var ret = getFieldName_CN(m, fieldName, fileType);
                    if (!string.IsNullOrWhiteSpace(ret))
                    {
                        return ret;
                    }
                }
            }
            return "";

        }
    }

    /// <summary>
    /// 字段说明属性类
    /// </summary>
    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true)]
    public class SacDescriptionAttribute : Attribute
    {
        /// <summary>
        /// 字段名
        /// </summary>
        public string FieldName { get; set; }
        /// <summary>
        /// 字段中文名
        /// </summary>
        public string FieldName_CN { get; set; }
        /// <summary>
        /// 字段长度
        /// </summary>
        public string FieldLength { get; set; }
        /// <summary>
        /// 必填
        /// </summary>
        public bool Required { get; set; }
        /// <summary>
        /// 字段说明
        /// </summary>
        public string FieldDescription { get; set; }

        public SacDescriptionAttribute() { }

        public SacDescriptionAttribute(string fieldName, string fieldName_CN, string fileLength, bool required, string fieldDescription)
        {
            FieldName = fieldName;
            FieldName_CN = fieldName_CN;
            FieldLength = fileLength;
            Required = required;
            FieldDescription = fieldDescription;
        }
    }
    /// <summary>
    /// 用于预览
    /// </summary>
    public class SacMap : SacDescriptionAttribute
    {
        /// <summary>
        /// 子节点
        /// </summary>
        public List<SacMap> SubMaps { get; set; }

        public SacMap() { }

        public SacMap(string fieldName, string fieldName_CN)
        {
            FieldName = fieldName;
            FieldName_CN = fieldName_CN;
            SubMaps = new List<SacMap>();
        }

        public override string ToString()
        {
            return $"{FieldName}_{FieldDescription}_{SubMaps.Count}";
        }
    }

    public class SacInfo : SacDescriptionAttribute
    {
        /// <summary>
        /// 对象序号
        /// </summary>
        public int Index { get; set; }
        /// <summary>
        /// 值
        /// </summary>
        public string FieldValue { get; set; }

        /// <summary>
        /// 检查结果
        /// </summary>
        public string Message { get; set; }
        /// <summary>
        /// 子信息
        /// </summary>
        public List<SacInfo> SubMaps { get; set; }

        public SacInfo()
        { }

        public SacInfo(string fileName)
            : this(fileName, "", "")
        {
        }

        public SacInfo(string fileName, int index)
            : this(fileName, "", "")
        {
            Index = index;
        }

        public SacInfo(string fileName, object value)
            : this(fileName, value, "")
        {
        }

        public SacInfo(string fileName, object value, string message)
        {
            FieldName = fileName;
            FieldValue = (value as string) ?? "";
            Message = message;
            Index = -1;
            SubMaps = new List<SacInfo>();
        }

        public void formatFieldDescription(params string[] paths)
        {
            var list = new List<string>(paths)
            {
                FieldName
            };
            var arr = list.ToArray();
            var info = Sac_TranslateHelper.TranslateFieldName(arr);
            FieldName = info.FieldName;
            FieldName_CN = info.FieldName_CN;
            FieldLength = info.FieldLength;
            FieldDescription = info.FieldDescription;
            Required = info.Required;
            if (this.SubMaps != null && this.SubMaps.Count > 0)
            {
                SubMaps?.ForEach(O =>
                {
                    if (O == null)
                    {
                        return;
                    }
                    O.formatFieldDescription(arr);
                });
            }
        }
    }


    public class ExceptionExtensionInfo
    {
        public List<SacInfo> Tag { get; set; }

        public string ErrFilePath { get; set; }
    }
}