using System;
using System.Collections.Generic;
using System.Threading;
using TeamAAS.FlowEditor.Execution;
using TeamAAS.FlowEditor.Models;

namespace TeamAAS.FlowEditor.Plugins
{
    /// <summary>
    /// 插件接口 - 每个工具节点对应一个插件实现
    /// 参照 VisionKit 的 IVisionTool 接口
    /// </summary>
    public interface IFlowNodePlugin : IDisposable
    {
        /// <summary>获取/设置插件模型</summary>
        BasePluginModel GetModel 
        { 
            get; 
            set;
        }

        /// <summary>所属流程绑定的结果注册表（运行态=Main，编辑/调试态=Debug；null 时回退 Debug）</summary>
        ResultRegistry Registry { get; set; }

        /// <summary>初始化插件（加载时调用）</summary>
        bool InitPlugin();

        /// <summary>执行插件逻辑</summary>
        NodeRunStatus PluginRun(CancellationToken token, out Dictionary<string, object> results);

        /// <summary>运行插件（封装计时+状态管理，内部调用PluginRun）</summary>
        NodeRunStatus Run(CancellationToken token);

        /// <summary>
        /// 初始化运行（每次运行前调用，内部调用InitPlugin），返回是否成功
        /// </summary>
        /// <returns></returns>
        bool InitRun();

        /// <summary>运行耗时(ms)</summary>
        int CostTime { get; }

        /// <summary>执行状态</summary>
        NodeRunStatus IsSuccess { get; set; }

        /// <summary>是否启用</summary>
        bool IsEnable { get; set; }

        /// <summary>最近一次运行的结果字典</summary>
        Dictionary<string, object> LastResults { get; }

        /// <summary>声明插件的输出字段（键名+类型），创建时即知输出 schema</summary>
        List<OutputField> DeclareOutputs();

        /// <summary>分支节点返回的下一个要执行的节点名列表（null=非分支节点）</summary>
        List<string> BranchTargets { get; }
    }

    /// <summary>
    /// 插件输出字段声明
    /// </summary>
    public class OutputField
    {
        public string Key { get; }
        public Type ValueType { get; }

        public OutputField(string key, Type valueType = null)
        {
            Key = key;
            ValueType = valueType;
        }
    }

    /// <summary>
    /// 插件描述符 - 插件加载后的元信息
    /// </summary>
    public class PluginDescriptor
    {
        public System.Type PluginType { get; set; }
        public PluginAttribute Attribute { get; set; }
        public string DisplayName => Attribute?.DisplayName;
        public PluginCategory Category => Attribute?.Category ?? PluginCategory.其他;
        public string IconGeometry => Attribute?.IconGeometry;
        public bool HasCustomView => Attribute?.ViewType != null;
        public NodeCategory NodeShape => Attribute?.NodeShape ?? NodeCategory.Normal;

        /// <summary>是否为子流程专用节点（不进主流程工具箱）。</summary>
        public bool IsSubFlowNode => Attribute?.IsSubFlowNode ?? false;

        /// <summary>子流程工具箱分组用的视觉类别（VisionPlugin 枚举）。</summary>
        public VisionPlugin VisionCategory => Attribute?.VisionCategory ?? VisionPlugin.其他;
    }

    /// <summary>
    /// 工具箱项信息（UI展示用，从PluginDescriptor生成）
    /// </summary>
    public class NodePluginInfo
    {
        public string PluginId { get; set; }
        public string DisplayName { get; set; }
        public NodeCategory Category { get; set; }
        public string IconGeometry { get; set; }
        public string Description { get; set; }
        public PluginCategory Group { get; set; }
        public string FlowPluginId { get; set; }

        /// <summary>是否为子流程专用节点（true=不进主流程工具箱，只在对应子流程编辑器中出现）。</summary>
        public bool IsSubFlowNode { get; set; }

        /// <summary>子流程工具箱分组类别（VisionPlugin 枚举）。</summary>
        public VisionPlugin VisionCategory { get; set; }
    }
}