using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using WorkData;
using WorkData.Entity;

namespace SigmaDrawerElement
{
    public static class tableInfoQuery
    {
        private static readonly string[] _entityClassNames = new string[]
        {
        "WorkData.Entity.WellReservesLayer",
        "WorkData.Entity.WellPerforation",
        "WorkData.Entity.InterpretDrillWellLayered",
        "WorkData.Entity.WellInnerLayer",
        "WorkData.Entity.WellLithology",
        "WorkData.Entity.WellSideWallCoring",
        "WorkData.Entity.WellCoring",
        "WorkData.Entity.WellLithologicalAnalysis"
    // 可随时在此添加或删除，无需修改逻辑
        };
        private const string TARGET_ASSEMBLY_NAME = "WorkData";
        //加载外部程序集
        private static Assembly LoadTargetAssembly()
        {
            try
            {
                // 方法 1：通过程序集名称加载（推荐）
                return Assembly.Load(TARGET_ASSEMBLY_NAME);
            }
            catch (FileNotFoundException)
            {
                // 方法 2：通过文件路径加载（如果知道确切路径）
                // return Assembly.LoadFrom(@"C:\Path\To\YourEntityLibrary.dll");

                // 方法 3：如果已在当前 AppDomain 中，尝试通过已加载的程序集查找
                foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
                {
                    if (asm.FullName?.StartsWith(TARGET_ASSEMBLY_NAME) == true)
                        return asm;
                }

                return null;
            }
        }

        public static Dictionary<string, string> TableDescriptionMap { get => _tableDescriptionMap; }

        private static Dictionary<string, string> BuildTableDescriptionMap()
        {
            var map = new Dictionary<string, string>();
            //var assembly = Assembly.GetExecutingAssembly(); // 或指定特定程序集

            //加载外部程序集
            Assembly targetAssembly = LoadTargetAssembly();
            if (targetAssembly == null)
            {
                // 可记录日志或抛异常
                return map;
            }

            foreach (string fullClassName in _entityClassNames)
            {
                // 通过类名字符串获取 Type
                Type type = targetAssembly.GetType(fullClassName); //assembly.GetType(fullClassName);
                if (type == null)
                {
                    // 可选：记录日志或抛出异常
                    System.Diagnostics.Debug.WriteLine($"Type not found: {fullClassName}");
                    continue;
                }

                try
                {
                    // 调用你的 DBHelp 非泛型方法（需提前实现）
                    string tableName = DBHelp.GetTableName(type);
                    string tableDesc = DBHelp.GetTableDescription(type);

                    if (!string.IsNullOrEmpty(tableName) && !string.IsNullOrEmpty(tableDesc))
                    {
                        map[tableName] = tableDesc;
                    }
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine($"Error processing {fullClassName}: {ex.Message}");
                }
            }

            return map;
        }

        private static readonly Dictionary<string, string> _tableDescriptionMap = BuildTableDescriptionMap();

        static public string tableEngName(string tableChsName)
        {
            string strName = "";

            if (string.IsNullOrEmpty(tableChsName))
                return "";

            foreach (var (engName, chsName) in tableInfoQuery.TableDescriptionMap)
            {
                if(tableChsName == chsName)
                {
                    strName = engName;break;
                }
            }
            return strName;
            //return _tableDescriptionMap.TryGetValue(tableEngName, out var desc) ? desc : "";
        }

        static public string tableChsName(string tableEngName)
        {
            string strName = "";

            if (string.IsNullOrEmpty(tableEngName))
                return "";

            return _tableDescriptionMap.TryGetValue(tableEngName, out var desc) ? desc : "";


            //if (tableEngName == DBHelp.GetTableName<WellReservesLayer>())
            //{
            //    strName = DBHelp.GetTableDescription(typeof(WellReservesLayer));
            //}
            //else if (tableEngName == DBHelp.GetTableName<WellPerforation>())
            //{
            //    strName = DBHelp.GetTableDescription(typeof(WellPerforation));
            //}
            //else if (tableEngName == DBHelp.GetTableName<InterpretDrillWellLayered>())
            //{
            //    strName = DBHelp.GetTableDescription(typeof(InterpretDrillWellLayered));
            //}
            //else if (tableEngName == DBHelp.GetTableName<WellInnerLayer>())
            //{
            //    strName = DBHelp.GetTableDescription(typeof(WellInnerLayer));
            //}
            //else if (tableEngName == DBHelp.GetTableName<WellLithology>())
            //{
            //    strName = DBHelp.GetTableDescription(typeof(WellLithology));
            //}

            //return strName;
        }

        private static readonly Dictionary<string, List<EntityColumnInfo>> _tableColumnMap = BuildTableColumnMap();
        private static  Dictionary<string, List<EntityColumnInfo>> BuildTableColumnMap()
        {
            var map = new Dictionary<string, List<EntityColumnInfo>>();
            Assembly targetAssembly = LoadTargetAssembly();
            if (targetAssembly == null)
            {
                // 可记录日志或抛异常
                return map;
            }

            foreach (string fullClassName in _entityClassNames)
            {
                // 通过类名字符串获取 Type
                Type type = targetAssembly.GetType(fullClassName); //assembly.GetType(fullClassName);
                if (type == null)
                {
                    // 可选：记录日志或抛出异常
                    System.Diagnostics.Debug.WriteLine($"Type not found: {fullClassName}");
                    continue;
                }

                try
                {
                    // 调用你的 DBHelp 非泛型方法（需提前实现）
                    string tableName = DBHelp.GetTableName(type);
                    

                    if (!string.IsNullOrEmpty(tableName))
                    {
                        map[tableName] = DBHelp.GetEntityColumnInfo(type);
                    }
                }
                catch (Exception ex)
                {
                    System.Diagnostics.Debug.WriteLine($"Error processing {fullClassName}: {ex.Message}");
                }
            }

            return map;
        }
        static public List<EntityColumnInfo> getListTableColumn(string tableName)
        {
            List<EntityColumnInfo> colList = new List<EntityColumnInfo>();
            string strName = "";

            if (string.IsNullOrEmpty(tableName))
                return colList;

            return _tableColumnMap.TryGetValue(tableName, out var desc) ? desc : colList;

            //if (tableName == DBHelp.GetTableName<WellReservesLayer>())
            //{
            //    colList = DBHelp.GetEntityColumnInfo(typeof(WellReservesLayer));
            //}
            //else if (tableName == DBHelp.GetTableName<WellPerforation>())
            //{
            //    colList = DBHelp.GetEntityColumnInfo(typeof(WellPerforation));
            //}
            //else if (tableName == DBHelp.GetTableName<InterpretDrillWellLayered>())
            //{
            //    colList = DBHelp.GetEntityColumnInfo(typeof(InterpretDrillWellLayered));
            //}
            //else if (tableName == DBHelp.GetTableName<WellInnerLayer>())
            //{
            //    colList = DBHelp.GetEntityColumnInfo(typeof(WellInnerLayer));
            //}
            //else if (tableName == DBHelp.GetTableName<WellLithology>())
            //{
            //    colList = DBHelp.GetEntityColumnInfo(typeof(WellLithology));
            //}

            //return colList;
        }

        static public string getColumnNameFromChsName(string tableName, string chsName)
        {
            string engName = chsName;

            List<EntityColumnInfo> colList = tableInfoQuery.getListTableColumn(tableName);
            if (colList != null)
            {
                for (int i = 0; i < colList.Count; i++)
                {
                    if (colList[i].ColumnDescription == chsName)
                    {
                        engName = colList[i].DbColumnName;
                        break;
                    }
                }
            }

            return engName;
        }

        static public string getColumnChsNameFromEngName(string tableName, string engName)
        {
            string name = engName;

            List<EntityColumnInfo> colList = tableInfoQuery.getListTableColumn(tableName);
            if (colList != null)
            {
                for (int i = 0; i < colList.Count; i++)
                {
                    if (colList[i].DbColumnName == engName)
                    {
                        name = colList[i].ColumnDescription;
                        break;
                    }
                }
            }

            return name;
        }
    }
}