using Fantasy.Entitas;
using Fantasy.Serialize;
#pragma warning disable CS8625 // Cannot convert null literal to non-nullable reference type.

namespace Fantasy;

public static class MailFactory
{
    public static readonly ISerialize Serializer = SerializerManager.GetSerializer(FantasySerializerType.Bson);

    /// <summary>
    /// 创建一个基础的邮件
    /// </summary>
    /// <param name="scene"></param>
    /// <param name="title"></param>
    /// <param name="content"></param>
    /// <param name="money"></param>
    /// <param name="items"></param>
    /// <param name="mailType"></param>
    /// <returns></returns>
    public static Mail Create(Scene scene, MailType mailType, string title, string content, int money = 0, List<Item> items = null)
    {
        var mail = Entity.Create<Mail>(scene, true, true);
        mail.Title = title;
        mail.Content = content;
        mail.Money = money;
        mail.MailType = mailType;
        mail.MailState = MailState.Unread;

        // if (items is not { Count: > 0 })
        // {
        //     
        // }
        if (items != null && items.Count > 0)
        {
            foreach (var item in items)
            {
                // 最好的是要个这个Item给克隆出一份来。
                // 这样就可以保证，无论外面怎么改变也不会影响这个邮件的东西了。
                var cloneItem = Serializer.Clone(item);
                mail.Items.Add(cloneItem);
            }
        }
        
        return mail;
    }
}