using System;
using System.Windows;
using System.Windows.Controls;
using Plugins.Vm.Models;
using TeamAAS;
using TeamAAS.FlowEditor.Plugins;
using TeamAAS.FlowEngine;

namespace Plugins.Vm.Views
{
    /// <summary>
    /// VM 工具块节点编辑视图：主区承载海康 VM 自带的流程配置控件 VmProcedureConfigControl，
    /// 按“方案路径/流程名”加载方案并绑定，用户直接在 VM 原生界面里编辑流程。
    /// 遵循插件视图约定：DataContext 为 VmToolBlockModel（由宿主注入），实现 IPluginViewSave 回写。
    /// </summary>
    public partial class VmToolBlockEditView : UserControl, IPluginViewSave
    {
        public VmToolBlockEditView()
        {
            InitializeComponent();
            Loaded += OnLoaded;
            Unloaded += OnUnloaded;
        }

        private VmToolBlockModel Model => DataContext as VmToolBlockModel;

        private void OnLoaded(object sender, RoutedEventArgs e)
        {
            var model = Model;
            if (model == null) return;
            TxtTitle.Text = string.IsNullOrWhiteSpace(model.NodeName) ? "VM工具块" : model.NodeName;
            LoadAndBind();
        }

        /// <summary>加载 VM 方案（若未加载）并把流程绑定到配置控件。</summary>
        private void LoadAndBind()
        {
            var model = Model;
            if (model == null) return;
            try
            {
                if (model.Solution == null && !string.IsNullOrWhiteSpace(model.SolutionPath))
                    model.Solution = VmRuntime.LoadSolution(model.SolutionPath);

                if (model.Solution != null && !string.IsNullOrWhiteSpace(model.ProcedureName))
                    Config.BindSingleProcedure(model.ProcedureName);
            }
            catch (Exception ex)
            {
                DialogHelper.Error($"加载 VM 方案/流程失败：{ex.Message}");
            }
        }

        private void BtnLoad_Click(object sender, RoutedEventArgs e) => LoadAndBind();

        /// <summary>属性按钮：配置方案路径/流程名/输入映射/输出终端名（走通用属性网格）。</summary>
        private void BtnProperties_Click(object sender, RoutedEventArgs e)
        {
            var model = Model;
            if (model == null) return;
            PluginLoader.Instance.ParentGroupModel = model;
            try
            {
                if (DialogHelper.EditProperties(model, $"VM工具块属性 - {model.NodeName}"))
                {
                    TxtTitle.Text = string.IsNullOrWhiteSpace(model.NodeName) ? "VM工具块" : model.NodeName;
                    LoadAndBind();
                }
            }
            finally
            {
                PluginLoader.Instance.ParentGroupModel = null;
            }
        }

        private void OnUnloaded(object sender, RoutedEventArgs e)
        {
            //SaveChanges();
            PluginLoader.Instance.ParentGroupModel = null;
        }

        /// <summary>保存：VM 配置控件直接编辑已加载方案，这里把方案写回磁盘。</summary>
        public void SaveChanges()
        {
            try { VM.Core.VmSolution.Save(); } catch { /* 未加载方案时忽略 */ }
        }
    }
}