using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using Aitex.Core.RT.Log;
using MECF.Framework.UI.Client.ClientBase;

namespace MECF.Framework.UI.Client.CenterViews.Configs.Roles;

public class PermissionHelper
{
    #region Constructors

    public MenuPermissionEnum this[string permName] => GetPermissionByID(permName);

    #endregion

    #region Properties

    public Dictionary<string, MenuPermissionEnum> MenuPermissionDictionary { get; } = new();

    #endregion
    
    #region Methods

    /// <summary>
    /// 解析_Account.xml文件中的权限字串。
    /// </summary>
    /// <param name="permissionString"></param>
    public void ParsePermission(string permissionString)
    {
        try
        {
            permissionString = permissionString.Replace("\n", "").Replace(" ", "");
            var groupIndex = permissionString.IndexOf(';');
            if (groupIndex == -1)
            {
                AddToDictionary(permissionString);
                return;
            }

            var strGroup = permissionString.Substring(0, groupIndex);
            AddToDictionary(strGroup);

            ParsePermission(permissionString.Substring(groupIndex + 1));

        }
        catch (Exception ex)
        {
            LOG.Write(ex);
        }
    }
    
    /// <summary>
    /// 创建保存于_Account.xml中的权限字串。
    /// </summary>
    /// <param name="menuPermission">底部菜单栏访问权限列表</param>
    /// <param name="recipeColumnsPermission">Recipe列访问权限列表</param>
    /// <param name="contentPermission">内容访问权限列表</param>
    /// <param name="recipeStepPermission">Recipe步骤访问权限列表</param>
    /// <returns></returns>
    public static string PermissionToString(ObservableCollection<PermissionControlItem> menuPermission,
        ObservableCollection<PermissionControlItem> recipeColumnsPermission,
        ObservableCollection<PermissionControlItem> contentPermission,
        ObservableCollection<PermissionControlItem> recipeStepPermission)
    {
        var strResult = "";

        if (menuPermission == null)
            return strResult;

        foreach (var info in menuPermission)
        {
            strResult += info.ID;
            strResult += ",";
            strResult += info.Permission.EnumValue;
            strResult += ";";
        }

        foreach (var info in recipeColumnsPermission)
        {
            strResult += info.Name;
            strResult += ",";
            strResult += info.Permission.EnumValue;
            strResult += ";";
        }

        foreach (var info in contentPermission)
        {
            strResult += info.Name;
            strResult += ",";
            strResult += info.Permission.EnumValue;
            strResult += ";";
        }

        foreach (var info in recipeStepPermission)
        {
            strResult += info.Name;
            strResult += ",";
            strResult += info.Permission.EnumValue;
            strResult += ";";
        }

        return strResult;
    }
    
    public MenuPermissionEnum GetPermissionByID(string id)
    {
        if (MenuPermissionDictionary.TryGetValue(id, out var perm))
            return perm;

        return MenuPermissionEnum.MP_NONE;
    }
    
    private void AddToDictionary(string permItem)
    {
        var index = permItem.IndexOf(',');
        if (index == -1)
            return;

        var strMenuID = permItem.Substring(0, index);
        var strMenuPermission = permItem.Substring(index + 1);

        MenuPermissionDictionary.Add(strMenuID, (MenuPermissionEnum)Convert.ToInt32(strMenuPermission));
    }
    
    #endregion

}