using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using Microsoft.Extensions.DependencyInjection;
using Sln.Wcs.Function.Functions;
using Sln.Wcs.Model.Domain;
using SqlSugar;

namespace Sln_Wpf.Page.AddWindows
{
    /// <summary>
    /// AddTaskWindow.xaml 的交互逻辑
    /// </summary>
    public partial class AddTaskWindow : Window
    {
        /// <summary>
        /// 返回结果：新增的任务实例
        /// </summary>
        public WcsTaskInstance NewTask { get; private set; }

        private List<BaseTasktypeInfo> _taskTypes;
        private ISqlSugarClient? sqlSugarClient;
        private wcstaskSqlFunction AddSqlFunction;

        public AddTaskWindow()
        {
            InitializeComponent();
            AddSqlFunction = new wcstaskSqlFunction(App.ServiceProvider);
            sqlSugarClient = App.ServiceProvider.GetService<ISqlSugarClient>();
            _taskTypes = sqlSugarClient.Queryable<BaseTasktypeInfo>().ToList();
            LoadTaskTypes();
        }

        /// <summary>
        /// 加载任务类型下拉框
        /// </summary>
        private void LoadTaskTypes()
        {
            CmbTaskType.Items.Clear();

            if (_taskTypes != null && _taskTypes.Any())
            {
                foreach (var taskType in _taskTypes)
                {
                    if (taskType.UseFlag == 1) // 只显示启用的任务类型
                    {
                        var item = new ComboBoxItem
                        {
                            Content = taskType.TaskTypeName,
                            Tag = taskType.TaskTypeKey
                        };
                        CmbTaskType.Items.Add(item);
                    }
                }
            }

            if (CmbTaskType.Items.Count > 0)
            {
                CmbTaskType.SelectedIndex = 0;
            }
        }

        /// <summary>
        /// 任务类型选择变化事件
        /// </summary>
        private void CmbTaskType_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            // 待定
        }

        /// <summary>
        /// 获取 ComboBox 选中项的 Tag 值
        /// </summary>
        private string GetSelectedTagValue(ComboBox comboBox)
        {
            var selectedItem = comboBox.SelectedItem as ComboBoxItem;
            if (selectedItem != null && selectedItem.Tag != null)
            {
                return selectedItem.Tag.ToString();
            }
            return "";
        }

        /// <summary>
        /// 获取 ComboBox 选中项的显示文本
        /// </summary>
        private string GetSelectedDisplayText(ComboBox comboBox)
        {
            var selectedItem = comboBox.SelectedItem as ComboBoxItem;
            return selectedItem?.Content?.ToString() ?? "";
        }

        /// <summary>
        /// 获取优先级值
        /// </summary>
        private int? GetPriorityValue()
        {
            var tagValue = GetSelectedTagValue(CmbPriority);
            if (int.TryParse(tagValue, out int result))
            {
                return result;
            }
            return 0;
        }



        /// <summary>
        /// 确认添加按钮
        /// </summary>
        private void BtnConfirm_Click(object sender, RoutedEventArgs e)
        {
            // 验证输入
            if (!ValidateInput())
                return;

            // 获取任务类型信息
            string taskTypeKey = GetSelectedTagValue(CmbTaskType);
            string taskTypeName = GetSelectedDisplayText(CmbTaskType);

            // 创建任务实例对象
            NewTask = new WcsTaskInstance
            {
                TaskCode = TxtTaskCode.Text.Trim(),
                TaskName = TxtTaskName.Text.Trim(),
                TaskTypeKey = taskTypeKey,
                TaskTypeName = taskTypeName,
                Priority = GetPriorityValue(),
                Status = "RUNNING",
                SourceLocation = TxtSourceLocation.Text.Trim(),
                TargetLocation = TxtTargetLocation.Text.Trim(),
                Remark = TxtRemark.Text.Trim(),

                // 默认值
                IsDeleted = false,
                CreateTime = DateTime.Now,
                UpdateTime = DateTime.Now
            };
            AddSqlFunction.insertFunction(NewTask);
            DialogResult = true;
            Close();
        }

        /// <summary>
        /// 取消按钮
        /// </summary>
        private void BtnCancel_Click(object sender, RoutedEventArgs e)
        {
            DialogResult = false;
            Close();
        }

        /// <summary>
        /// 验证输入
        /// </summary>
        private bool ValidateInput()
        {
            // 验证任务编码
            if (string.IsNullOrWhiteSpace(TxtTaskCode.Text))
            {
                MessageBox.Show("请输入任务编码", "验证失败", MessageBoxButton.OK, MessageBoxImage.Warning);
                TxtTaskCode.Focus();
                return false;
            }

            // 验证任务名称
            if (string.IsNullOrWhiteSpace(TxtTaskName.Text))
            {
                MessageBox.Show("请输入任务名称", "验证失败", MessageBoxButton.OK, MessageBoxImage.Warning);
                TxtTaskName.Focus();
                return false;
            }

            // 验证任务类型
            if (CmbTaskType.SelectedItem == null ||
                GetSelectedTagValue(CmbTaskType) == "")
            {
                MessageBox.Show("请选择任务类型", "验证失败", MessageBoxButton.OK, MessageBoxImage.Warning);
                CmbTaskType.Focus();
                return false;
            }

            return true;
        }

        /// <summary>
        /// 窗口拖拽
        /// </summary>
        private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            if (e.ButtonState == MouseButtonState.Pressed)
            {
                this.DragMove();
            }
        }

        /// <summary>
        /// 最小化
        /// </summary>
        private void BtnMinimize_Click(object sender, RoutedEventArgs e)
        {
            this.WindowState = WindowState.Minimized;
        }

        /// <summary>
        /// 关闭
        /// </summary>
        private void BtnClose_Click(object sender, RoutedEventArgs e)
        {
            DialogResult = false;
            Close();
        }
    }
}