#region copyright

//------------------------------------------------------------------------------
//  此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
//  此代码版权（除特别声明外的代码）归作者本人Diego所有
//  源代码使用协议遵循本仓库的开源协议及附加协议
//  Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
//  Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
//  使用文档：https://diego2098.gitee.io/thingsgateway-docs/
//  QQ群：605534569
//------------------------------------------------------------------------------

#endregion

using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

using System.ComponentModel;
using System.Globalization;
using System.Reflection;

using Yitter.IdGenerator;

namespace ThingsGateway.Admin.Application;

/// <summary>
/// 扩展方法
/// </summary>
public class PermissionUtil
{
    /// <summary>
    /// 获取WebApi授权树
    /// </summary>
    /// <returns></returns>
    public static List<OpenApiPermissionTreeSelector> OpenApiPermissionTreeSelector()
    {
        var cacheKey = $"{nameof(OpenApiPermissionTreeSelector)}-{CultureInfo.CurrentUICulture.Name}-{typeof(PermissionUtil).FullName}-{typeof(PermissionUtil).TypeHandle.Value}";
        var cacheValue = App.GetService<MemoryCache>().GetOrCreate(cacheKey, entry =>
        {
            List<OpenApiPermissionTreeSelector> openApiGroups = new();
            var controllerTypes = App.EffectiveTypes
            .Where(u => !u.IsInterface && !u.IsAbstract && u.IsClass && u.IsDefined(typeof(OpenApiPermissionAttribute), false));
            foreach (var controller in controllerTypes)
            {
                var GroupName = controller.GetCustomAttribute<ApiDescriptionSettingsAttribute>().GroupName;
                if (GroupName == CateGoryConst.ThingsGatewayOpenApi)
                {
                    var Description = controller.GetCustomAttribute<DescriptionAttribute>().Description;
                    var parid = YitIdHelper.NextId();
                    OpenApiPermissionTreeSelector openApiGroup = new() { ApiName = Description, Id = parid, PermissionName = Description };
                    var routeName = "/" + controller.GetCustomAttribute<RouteAttribute>().Template;
                    //获取所有方法
                    var menthods = controller.GetMethods();
                    //遍历方法
                    foreach (var menthod in menthods)
                    {
                        //获取忽略数据权限特性
                        var ignoreOpenApiPermission = menthod.GetCustomAttribute<IgnoreOpenApiPermissionAttribute>();
                        if (ignoreOpenApiPermission == null)//如果是空的代表需要数据权限
                        {
                            //获取接口描述
                            var description = menthod.GetCustomAttribute<DescriptionAttribute>();
                            if (description != null)
                            {
                                //默认路由名称
                                var apiRoute = menthod.Name;
                                //获取get特性
                                var requestGet = menthod.GetCustomAttribute<HttpGetAttribute>();
                                if (requestGet != null)//如果是get方法
                                    apiRoute = requestGet.Template;
                                else
                                {
                                    //获取post特性
                                    var requestPost = menthod.GetCustomAttribute<HttpPostAttribute>();
                                    if (requestPost != null)//如果是post方法
                                        apiRoute = requestPost.Template;
                                }
                                apiRoute = routeName + $"/{apiRoute}";
                                var apiName = description.Description;//如果描述不为空则接口名称用描述的名称

                                //合并
                                var permissionName = apiRoute + $"[{apiName}]";
                                //添加到权限列表
                                openApiGroup.Children.Add(new OpenApiPermissionTreeSelector
                                {
                                    Id = YitIdHelper.NextId(),
                                    ParentId = parid,
                                    ApiName = apiName,
                                    ApiRoute = apiRoute,
                                    PermissionName = permissionName
                                });
                            }
                        }
                    }

                    openApiGroups.Add(openApiGroup);
                }
            }
            return openApiGroups;
        }, false);

        return cacheValue;
    }

    /// <summary>
    /// 获取全部页面权限内容
    /// </summary>
    /// <param name="routers"></param>
    /// <returns></returns>
    public static List<PermissionTreeSelector> PermissionTreeSelector(List<string> routers)
    {
        var cacheKey = $"{nameof(PermissionTreeSelector)}-{CultureInfo.CurrentUICulture.Name}-{typeof(PermissionUtil).FullName}-{typeof(PermissionUtil).TypeHandle.Value}";
        var cacheValue = App.GetService<MemoryCache>().GetOrCreate(cacheKey, entry =>
        {
            List<PermissionTreeSelector> permissions = new();//权限列表

            // 获取所有需要数据权限的控制器
            var controllerTypes = App.EffectiveTypes.
                Where(u => !u.IsInterface && !u.IsAbstract && u.IsClass
                && u.IsDefined(typeof(AuthorizeAttribute), false)
                && u.IsDefined(typeof(Microsoft.AspNetCore.Components.RouteAttribute), false));
            foreach (var controller in controllerTypes)
            {
                //获取数据权限特性
                var routeName = controller.GetCustomAttribute<Microsoft.AspNetCore.Components.RouteAttribute>()?.Template;
                if (routeName == null)
                    continue;
                if (routers.Contains(routeName))
                {
                    var apiRoute = $"{routeName}";
                    permissions.Add(new() { ApiRoute = apiRoute });
                }
            }
            return permissions;
        }, false);
        return cacheValue;
    }
}