using System;

namespace ShrinkModFramework
{
    /// <summary>
    /// 延迟模组组件源。Revision 是来源内容的稳定指纹（外部 DLL 可使用文件哈希）；
    /// 同一 ModId 的 revision/factory 变化由 ShrinkModContextHost 作为替换事务处理。
    /// </summary>
    public sealed class ShrinkModComponentSource
    {
        public ShrinkModComponentSource(ShrinkModInfo info, string revision, Func<IShrinkMod> factory)
        {
            Info = info ?? throw new ArgumentNullException(nameof(info));
            if (string.IsNullOrWhiteSpace(info.ModId))
                throw new ArgumentException("ModId must not be empty.", nameof(info));
            if (string.IsNullOrWhiteSpace(revision))
                throw new ArgumentException("Revision must not be empty.", nameof(revision));

            Revision = revision.Trim();
            Factory = factory ?? throw new ArgumentNullException(nameof(factory));
        }

        public ShrinkModInfo Info { get; }
        public string Revision { get; }
        public Func<IShrinkMod> Factory { get; }
    }
}