using Proxd_man.Config.Outbound;

namespace Proxd_man.ShareLink;

public class ShareLinkParser
{

    private static readonly Lazy<List<IShareLinkParser>> parser = new(() => [
        new ShadowSocksLinkParserV2()
    ]);
    
    public static BaseOutboundSetting Parse(string shareLink)
    {
        foreach (var p in parser.Value.Where(p => p.CanParse(shareLink)))
        {
            return p.Parse(shareLink);
        }

        throw new InvalidShareLinkException("不支持的分享链接: " + shareLink);
    }

}

public interface IShareLinkParser
{

    /// <summary>
    /// 检查该分享链接是否可以被该实现解析.
    ///
    /// 该方法只需要检查是否可以解析, 并不需要检查是否正确.
    /// </summary>
    /// <param name="shareLink">要尝试解析的出站配置分享链接.</param>
    /// <returns>如果可以被实现解析, 则返回 true.</returns>
    bool CanParse(string shareLink);

    
    /// <summary>
    /// 将分享链接解析为出站配置.
    /// </summary>
    /// <param name="shareLink">要解析的分享链接.</param>
    /// <returns>返回分享链接解析得出的出站配置.</returns>
    /// <exception cref="InvalidShareLinkException">当分享链接错误导致无法解析时抛出异常.</exception>
    BaseOutboundSetting Parse(string shareLink);
    
}

public class InvalidShareLinkException(string message, Exception? cause = null) : Exception(message, cause);