using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;




namespace GameServer;

public class SystemMetaMail : EntityBase
{
    private SystemMetaMail(EntityBase parent)
        : base(EntityType.SystemMail, parent)
    {
    }

    public override async Task<Result> onInit()
    {
        addEntityAttribute(new SystemMetaMailAttribute(this));

        return await base.onInit();
    }

    public static async Task<(Result, SystemMetaMail?)> createTestSystemMail(EntityBase owner, int mail_sequence_num)
    {
        var system_mail = new SystemMetaMail(owner);
        var result = await system_mail.onInit();
        if (result.isFail())
        {
            return (result, null);
        }

        var err_msg = string.Empty;
        DateTime now = DateTime.UtcNow;

        var system_meta_mail_attribute = system_mail.getEntityAttribute<SystemMetaMailAttribute>();
        NullReferenceCheckHelper.throwIfNull(system_meta_mail_attribute, () => $"system_meta_mail_attribute is null !!! - {owner.toBasicString()}");

        List<ServerCommon.MailItem> data = new List<ServerCommon.MailItem>();
        data.Add(new ServerCommon.MailItem() { ItemId = 15231470, Count = 1 });
        data.Add(new ServerCommon.MailItem() { ItemId = 31020014, Count = 1 });

        system_meta_mail_attribute.MailId = mail_sequence_num + 1;
        
        List<OperationSystemMessage> titles = new();
        OperationSystemMessage title_ko = new();
        title_ko.LanguageType = LanguageType.Ko;
        title_ko.Text = "한국어 타이틀";
        titles.Add(title_ko);
        
        OperationSystemMessage title_ja = new();
        title_ja.LanguageType = LanguageType.Ja;
        title_ja.Text = "日本語 タイトル";//メッセージ      送信者
        titles.Add(title_ja);
        
        OperationSystemMessage title_en = new();
        title_en.LanguageType = LanguageType.En;
        title_en.Text = "English Title";
        titles.Add(title_en);
        
        system_meta_mail_attribute.Title = titles;
        
        
        List<OperationSystemMessage> messages = new();
        OperationSystemMessage msg_ko = new();
        msg_ko.LanguageType = LanguageType.Ko;
        msg_ko.Text = "한국어 메시지";
        messages.Add(msg_ko);
        
        OperationSystemMessage msg_ja = new();
        msg_ja.LanguageType = LanguageType.Ja;
        msg_ja.Text = "日本語 メッセージ";//      送信者
        messages.Add(msg_ja);
        
        OperationSystemMessage msg_en = new();
        msg_en.LanguageType = LanguageType.En;
        msg_en.Text = "English Message";
        messages.Add(msg_en);
        
        system_meta_mail_attribute.Text = messages;
        
        
        List<OperationSystemMessage> senders = new();
        OperationSystemMessage senders_ko = new();
        senders_ko.LanguageType = LanguageType.Ko;
        senders_ko.Text = "한국어 보낸이";
        senders.Add(senders_ko);
        
        OperationSystemMessage senders_ja = new();
        senders_ja.LanguageType = LanguageType.Ja;
        senders_ja.Text = "日本語 送信者";//      
        senders.Add(senders_ja);
        
        OperationSystemMessage senders_en = new();
        senders_en.LanguageType = LanguageType.En;
        senders_en.Text = "English Sender";
        senders.Add(senders_en);
        
        system_meta_mail_attribute.SenderNickName = messages;
        
        system_meta_mail_attribute.StartTime = now;
        system_meta_mail_attribute.EndTime = now.AddDays(2);
        system_meta_mail_attribute.ItemList.AddRange(data);

        system_meta_mail_attribute.newEntityAttribute();

        return (result, system_mail);
    }

    public static async Task<(Result, SystemMetaMail?)> createMailFromDoc(EntityBase parent, SystemMetaMailDoc doc)
    {
        var system_mail = new SystemMetaMail(parent);
        var result = await system_mail.onInit();
        if (result.isFail())
        {
            return (result, null);
        }

        var err_msg = string.Empty;

        var system_mail_attribute = system_mail.getEntityAttribute<SystemMetaMailAttribute>();
        NullReferenceCheckHelper.throwIfNull(system_mail_attribute, () => $"system_mail_attribute is null !!! - {parent.toBasicString()}");

        if (system_mail_attribute.copyEntityAttributeFromDoc(doc) == false)
        {
            err_msg = $"Failed to copyEntityAttributeFromDoc !!! : doc_type {doc.GetType()} - {system_mail.getRootParent()?.toBasicString()}";
            result.setFail(ServerErrorCode.DynamoDbDocCopyToEntityAttributeFailed, err_msg);
            Log.getLogger().error(err_msg);
            return (result, null);
        }

        return (result, system_mail);
    }

    public override string toBasicString()
    {
        return $"{this.getTypeName()} - {getRootParent()?.toBasicString()}";
    }

    public override string toSummaryString()
    {
        return $"{this.getTypeName()} - {getRootParent()?.toSummaryString()}";
    }
}