TBL.GodotSharp.Content/PackageNode.DependencyInfo.cs

using System;

namespace TBL.GodotSharp.Content;

public partial class PackageNode
{
    /// <summary>
    /// 包信息
    /// </summary>
    public struct Info
    {
        /// <summary>
        /// 包名称
        /// </summary>
        public readonly string Name;

        /// <summary>
        /// 作者信息
        /// </summary>
        public readonly string AuthorInfo;
        
        /// <summary>
        /// 版本信息
        /// </summary>
        public readonly Version VersionInfo;

        public Info(string name, string author, string version)
        {
            Name = name;
            AuthorInfo = author;
            if (!Version.TryParse(version, out VersionInfo))
                VersionInfo = new Version();
        }
        
        /// <summary>
        /// 判断本信息能否满足 <paramref name="target"/> 的版本要求
        /// </summary>
        /// <param name="target">依赖项信息</param>
        public readonly bool IsCompatibleWith(DependencyInfo target)
        {
            return Content.IsCompatibleWith(VersionInfo, target.Target.VersionInfo,
                (target.Flags & DependencyInfo.FlagsEnum.Strict) != 0 ? 1 : 0);
        }

        public override string ToString() => $"{Name}_{AuthorInfo}_{VersionInfo}";
    }

    /// <summary>
    /// 包依赖信息
    /// </summary>
    public struct DependencyInfo
    {
        /// <summary>
        /// 依赖目标
        /// </summary>
        public readonly Info Target;

        /// <summary>
        /// 依赖属性
        /// </summary>
        public readonly FlagsEnum Flags;
        
        /// <summary>
        /// 依赖项属性
        /// </summary>
        [Flags]
        public enum FlagsEnum
        {
            /// <summary>
            /// 无属性
            /// </summary>
            None,
                
            /// <summary>
            /// 非必须依赖项
            /// </summary>
            Unnecessary,

            /// <summary>
            /// 严格（次版本号）兼容依赖项
            /// </summary>
            Strict
        }

        public DependencyInfo(Info target, FlagsEnum flags = FlagsEnum.None)
        {
            Target = target;
            Flags = flags;
        }
    }
}