using Castle.Components.DictionaryAdapter.Xml;
using Microsoft.AspNetCore.Mvc.Rendering;
using Newtonsoft.Json;
using SkiaSharp;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Linq;
using System.Net.Sockets;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using WIDESEAWCS_Core.Const;
using WIDESEAWCS_Core.DB;
using WIDESEAWCS_Core.Helper;
using WIDESEAWCS_Core.Tenants;

namespace WIDESEAWCS_Core.Seed
{
    public class DBSeed
    {
        private static string SeedDataFolder = "WIDESEAWCS_DB.DBSeed.Json/{0}.tsv";

        /// <summary>
        /// 异步添加种子数据
        /// </summary>
        /// <param name="myContext"></param>
        /// <param name="WebRootPath"></param>
        /// <returns></returns>
        public static async Task SeedAsync(DBContext dbContext, string WebRootPath)
        {
            try
            {
                if (string.IsNullOrEmpty(WebRootPath))
                {
                    throw new Exception("获取wwwroot路径时，异常！");
                }

                SeedDataFolder = Path.Combine(WebRootPath, SeedDataFolder);

                Console.WriteLine("************ WIDESEA DataBase Set *****************");

                //Console.WriteLine($"Master DB ConId: {DBContext.ConnId}");
                Console.WriteLine($"Master DB Type: {DBContext.DbType}");
                //Console.WriteLine($"Master DB ConnectString: {DBContext.ConnectionString}");

                Console.WriteLine();

                // 创建数据库
                Console.WriteLine($"Create Database(The Db Id:{DBContext.ConnId})...");

                if (DBContext.DbType != SqlSugar.DbType.Oracle)
                {
                    dbContext.Db.DbMaintenance.CreateDatabase();
                    ConsoleHelper.WriteSuccessLine($"Database Created Successfully!");
                }
                else
                {
                    //Oracle 数据库不支持该操作
                    ConsoleHelper.WriteSuccessLine($"Oracle 数据库不支持该操作，可手动创建Oracle数据库!");
                }

                // 创建数据库表，遍历指定命名空间下的class，
                // 注意不要把其他命名空间下的也添加进来。
                Console.WriteLine("Create Tables...");

                var path = AppDomain.CurrentDomain.RelativeSearchPath ?? AppDomain.CurrentDomain.BaseDirectory;
                var referencedAssemblies = System.IO.Directory.GetFiles(path, MainDb.AssemblyName).Select(Assembly.LoadFrom).ToArray();

                var modelTypes = referencedAssemblies
                    .SelectMany(a => a.DefinedTypes)
                    .Select(type => type.AsType())
                    .Where(x => x.IsClass && x.Namespace is MainDb.EntityNameSpace && x.GetCustomAttribute<SugarTable>() != null)
                    .ToList();

                modelTypes.ForEach(t =>
                {
                    //var diffString = dbContext.Db.CodeFirst.GetDifferenceTables(t).ToDiffString();
                    // 这里只支持添加表，不支持删除
                    // 如果想要删除，数据库直接右键删除，或者联系SqlSugar作者；
                    IDbMaintenance dbMaintenance = dbContext.Db.DbMaintenance;
                    if (!dbMaintenance.IsAnyTable(t.Name, false))
                    {
                        ConsoleHelper.WriteSuccessLine($"Table [{t.Name}] Created Successfully");
                        dbContext.Db.CodeFirst.InitTables(t);

                        string seedData = FileHelper.ReadFile(string.Format(SeedDataFolder, t.Name), Encoding.UTF8);

                        #region AddSeedData
                        if (seedData != "不存在相应的目录")
                        {
                            List<Dictionary<string, object>> dicFile = JsonConvert.DeserializeObject<List<Dictionary<string, object>>>(seedData);

                            if (dicFile.Count > 0)
                            {
                                List<Dictionary<string, object>> dic = new List<Dictionary<string, object>>();

                                List<string> columnNames = dbContext.Db.DbMaintenance.GetColumnInfosByTableName(t.Name, false).Select(x => x.DbColumnName).ToList();
                                var a = t.GetProperties().FirstOrDefault(x => !columnNames.Contains(x.Name));

                                List<PropertyInfo> propertyInfos = t.GetProperties().Where(x => columnNames.Contains(x.Name)).ToList();
                                for (int j = 0; j < dicFile.Count; j++)
                                {
                                    Dictionary<string, object> keyValuePairs = new Dictionary<string, object>();
                                    for (int i = 0; i < propertyInfos.Count; i++)
                                    {
                                        PropertyInfo propertyInfo = propertyInfos[i];
                                        SugarColumn sugarColumn = propertyInfo.GetCustomAttribute<SugarColumn>();
                                        if (sugarColumn != null)
                                        {
                                            if (!sugarColumn.IsIgnore)
                                            {
                                                keyValuePairs.Add(propertyInfo.Name, dicFile[j][propertyInfo.Name]);
                                            }
                                        }
                                    }
                                    dic.Add(keyValuePairs);
                                }

                                if (dic.Count > 0)
                                {
                                    for (int i = 0; i < dic.Count; i++)
                                    {
                                        if (dic[i].ContainsKey("CreateDate"))
                                            dic[i]["CreateDate"] = DateTime.Now;
                                        else
                                            dic[i].Add("CreateDate", DateTime.Now);
                                    }
                                    string str = $"SET IDENTITY_INSERT {t.Name} ON;";

                                    str += dbContext.Db.Insertable(dic).AS(t.Name).ToSqlString();

                                    str += ($"SET IDENTITY_INSERT {t.Name} OFF;");

                                    dbContext.Db.Ado.ExecuteCommand(str);

                                    ConsoleHelper.WriteSuccessLine($"Table [{t.Name}] SeedData Added Successfully");
                                }
                            }
                        }
                        #endregion
                    }
                    else
                    {
                        List<string> columnNames = dbContext.Db.DbMaintenance.GetColumnInfosByTableName(t.Name, false).Select(x => x.DbColumnName).ToList();
                        if (t.GetProperties().FirstOrDefault(x => !columnNames.Contains(x.Name)) != null)
                        {
                            bool isChange = true;
                            List<PropertyInfo> propertyInfos = t.GetProperties().Where(x => !columnNames.Contains(x.Name)).ToList();
                            for (int i = 0; i < propertyInfos.Count; i++)
                            {
                                PropertyInfo propertyInfo = propertyInfos[i];
                                SugarColumn sugarColumn = propertyInfo.GetCustomAttribute<SugarColumn>();
                                if (sugarColumn != null)
                                {
                                    if (!sugarColumn.IsIgnore)
                                    {
                                        if (!sugarColumn.IsNullable)
                                        {
                                            isChange = false;
                                            break;
                                        }
                                    }
                                }
                            }
                            if (isChange)
                                dbContext.Db.CodeFirst.InitTables(t);
                        }
                    }
                });
                ConsoleHelper.WriteSuccessLine($"Tables Created Successfully!");
                Console.WriteLine();


            }
            catch (Exception ex)
            {
                // 1、若是Mysql,查看常见问题:https://github.com/anjoy8/Blog.Core/issues/148#issue-776281770
                //2、若是Oracle,查看常见问题:https://github.com/anjoy8/Blog.Core/issues/148#issuecomment-752340231
                throw new Exception("错误：" + ex.Message);
            }
        }

        /// <summary>
        /// 初始化 多租户
        /// </summary>
        /// <param name="dbContext"></param>
        /// <returns></returns>
        public static async Task TenantSeedAsync(DBContext dbContext)
        {

            if (BaseDBConfig.MutiConnectionString.Where(x => x.ConnId != MainDb.CurrentDbConnId).Any())
            {
                Console.WriteLine($@"Init Multi Tenant Db");
                foreach (MutiDBOperate tenant in BaseDBConfig.MutiConnectionString.Where(x => x.ConnId != MainDb.CurrentDbConnId))
                {

                    Console.WriteLine($@"Init Multi Tenant Db : {tenant.ConnId}");
                    ConnectionConfig connectionConfig = new ConnectionConfig()
                    {
                        ConfigId = tenant.ConnId,
                        ConnectionString = tenant.Connection,
                        IsAutoCloseConnection = true,
                        MoreSettings = new ConnMoreSettings()
                        {
                            IsAutoRemoveDataCache = true
                        },
                        DbType = (DbType)tenant.DbType,
                    };
                    await InitTenantSeedAsync(dbContext.Db.AsTenant(), connectionConfig);
                }

                Console.WriteLine(DateTime.Now + $@"Init Multi Tenant Db Finish");
            }

            //tenants = await myContext.Db.Queryable<SysTenant>().Where(s => s.TenantType == TenantTypeEnum.Tables).ToListAsync();
            //if (tenants.Any())
            //{
            //    await InitTenantSeedAsync(myContext, tenants);
            //}
        }

        #region 多租户 多库 初始化

        /// <summary>
        /// 初始化多库
        /// </summary>
        /// <param name="itenant"></param>
        /// <param name="config"></param>
        /// <returns></returns>
        public static async Task InitTenantSeedAsync(ITenant itenant, ConnectionConfig config)
        {
            Console.WriteLine(DateTime.Now + $@"Init Multi Tenant Db");
            //itenant.RemoveConnection(config.ConfigId);
            itenant.AddConnection(config);

            var db = itenant.GetConnectionScope(config.ConfigId);

            db.DbMaintenance.CreateDatabase();
            ConsoleHelper.WriteSuccessLine($"Init Multi Tenant Db : {config.ConfigId} Database created successfully!");

            Console.WriteLine($@"Init Multi Tenant Db : {config.ConfigId}  Create Tables");

            // 获取所有实体表-初始化租户业务表
            var entityTypes = TenantUtil.GetTenantEntityTypes(TenantTypeEnum.Db);
            if (!entityTypes.Any()) return;
            foreach (var entityType in entityTypes)
            {
                //var splitTable = entityType.GetCustomAttribute<SplitTableAttribute>();
                //if (splitTable == null)
                db.CodeFirst.InitTables(entityType);
                //else
                //    db.CodeFirst.SplitTables().InitTables(entityType);

                Console.WriteLine(entityType.Name);
            }
            Console.WriteLine(DateTime.Now + $@"Init Multi Tenant Db Finish");
            //多租户初始化种子数据
            //await TenantSeedDataAsync(db, TenantTypeEnum.Db);
        }

        #endregion

        //private static async Task TenantSeedDataAsync(ISqlSugarClient db, TenantTypeEnum tenantType)
        //{
        //    // 获取所有种子配置-初始化数据
        //    var seedDataTypes = AssemblysExtensions.GetAllAssemblies().SelectMany(s => s.DefinedTypes)
        //        .Where(u => !u.IsInterface && !u.IsAbstract && u.IsClass)
        //        .Where(u =>
        //        {
        //            var esd = u.GetInterfaces().FirstOrDefault(i => i.HasImplementedRawGeneric(typeof(IEntitySeedData<>)));
        //            if (esd is null)
        //            {
        //                return false;
        //            }

        //            var eType = esd.GenericTypeArguments[0];
        //            return eType.IsTenantEntity(tenantType);
        //        });
        //    if (!seedDataTypes.Any()) return;
        //    foreach (var seedType in seedDataTypes)
        //    {
        //        dynamic instance = Activator.CreateInstance(seedType);
        //        //初始化数据
        //        {
        //            var seedData = instance.InitSeedData();
        //            if (seedData != null && Enumerable.Any(seedData))
        //            {
        //                var entityType = seedType.GetInterfaces().First().GetGenericArguments().First();
        //                var entity = db.EntityMaintenance.GetEntityInfo(entityType);

        //                if (!await db.Queryable(entity.DbTableName, "").AnyAsync())
        //                {
        //                    await db.Insertable(Enumerable.ToList(seedData)).ExecuteCommandAsync();
        //                    Console.WriteLine($"Table:{entity.DbTableName} init success!");
        //                }
        //            }
        //        }

        //        //种子数据
        //        {
        //            var seedData = instance.SeedData();
        //            if (seedData != null && Enumerable.Any(seedData))
        //            {
        //                var entityType = seedType.GetInterfaces().First().GetGenericArguments().First();
        //                var entity = db.EntityMaintenance.GetEntityInfo(entityType);

        //                await db.Storageable(Enumerable.ToList(seedData)).ExecuteCommandAsync();
        //                Console.WriteLine($"Table:{entity.DbTableName} seedData success!");
        //            }
        //        }

        //        //自定义处理
        //        {
        //            await instance.CustomizeSeedData(db);
        //        }
        //    }
        //}
    }
}