using Pipelines.Sockets.Unofficial.Arenas;
using ServerCommon;
using ServerCore; using ServerBase;

using USER_GUID = System.String;
using MAIL_GUID = System.String;
using GameServer.PacketHandler;
using MetaAssets;

namespace GameServer
{
    public static class MailHelper
    {
        public static bool isDeletableMail(this MailAttribute mailAttribute)
        {
            var has_creatable_item = false;
            foreach (var mail_item in mailAttribute.ItemList)
            {
                var item_meta_id = mail_item.ItemId;
                if (false == MetaData.Instance._ItemTable.TryGetValue((Int32)item_meta_id, out var found_item_meta_data))
                {
                    var err_msg = $"Not found ItemMeta !!! : itemMetaId:{item_meta_id} - {mailAttribute.toBasicString()}";
                    Log.getLogger().error(err_msg);
                    return false;
                }

                // 메타버스 서버에서 우편에 첨부 아이템이 생성 가능한 아이템이 존재할 경우
                // 우편을 삭제할 수 없다 !!!
                if(true == found_item_meta_data.isCreatableItem())
                {
                    has_creatable_item = true;
                }
            }

            if (   mailAttribute.ItemList.Count > 0 && mailAttribute.IsGetItem == false
                && true == has_creatable_item )
            {
                return false;
            }

            return true;
        }

        public static string makeMailGuid(DateTime now)
        {
            var guid = Guid.NewGuid().ToString("N");
            return $"{now.ToString("yyyy/MM/dd/HH:mm:ss:ff")}-{guid}";
        }

        public static void toAttrib(this MailAttribute mailAttribute, MailAttrib mailAttrib)
        {
            mailAttrib.MailGuid = mailAttribute.MailGuid;
            mailAttrib.IsRead = mailAttribute.IsRead;
            mailAttrib.IsGetItem = mailAttribute.IsGetItem;
            mailAttrib.IsSystemMail = mailAttribute.IsSystemMail;
            mailAttrib.SenderNickName = mailAttribute.SenderNickName;
            mailAttrib.SenderGuid = mailAttribute.SenderGuid;
            mailAttrib.ReceiverNickName = mailAttribute.ReceiverNickName;
            mailAttrib.ReceiverGuid = mailAttribute.ReceiverGuid;
            mailAttrib.Title = mailAttribute.Title;
            mailAttrib.Text = mailAttribute.Text;
            mailAttrib.CreateTime = mailAttribute.CreateTime;
            mailAttrib.ExpireTime = mailAttribute.ExpireTime;

            mailAttrib.ItemList = mailAttribute.ItemList;
            mailAttrib.ItemList = mailAttribute.ItemList.Select(x => new ServerCommon.MailItem() { ItemId = x.ItemId, Count = x.Count }).ToList();
        }

        public static ReceivedMailDoc CreateReceivedMail(USER_GUID to_user_guid, MAIL_GUID mail_guid)
        {
            var ttlTime = MetaHelper.GameConfigMeta.UserMailStoragePeriod;
            var received_mail_doc = new ReceivedMailDoc(to_user_guid, mail_guid, ttlTime);
            return received_mail_doc;
        }

        public async static Task<ReceivedMailDoc?> CreateReceivedMailBySendMail(USER_GUID to_user_guid, MAIL_GUID mail_guid, MailAttribute send_mail_attribute)
        {
            var ttlTime = DynamoDbClientHelper.makeTTLTimeForDynamoDB(send_mail_attribute.ExpireTime);
            //var ttlTime = MetaHelper.GameConfigMeta.UserMailStoragePeriod;
            var received_mail_doc = new ReceivedMailDoc(to_user_guid, mail_guid, ttlTime);

            var received_mail_attrib = received_mail_doc.getAttrib<MailAttrib>();
            if (received_mail_attrib == null)
            {
                return null;
            }

            send_mail_attribute.toAttrib(received_mail_attrib);
            received_mail_attrib.ExpireTime = DateTimeHelper.Current.AddSeconds(MetaHelper.GameConfigMeta.UserMailStoragePeriod);
            var result = await received_mail_doc.newDoc4Query();
            if (result.isFail())
            {
                return null;
            }

            return received_mail_doc;
        }

        public async static Task loadSystemMail(this Player player, bool isFirstLogin)
        {
            var mail_action = player.getEntityAction<MailAction>();
            await mail_action.checkSystemMail();
        }
    }
}