using System;
using System.Collections.Generic;
using System.Linq;
using Znyc.Admin.Commons.Core.App;
using Znyc.Admin.Commons.Extend;
using Znyc.Admin.Commons.Json;
using Znyc.Admin.Commons.Log;
using Znyc.Admin.Commons.Mapping;
using Znyc.Admin.Commons.Tree;
using Znyc.Admin.Security.Dtos;
using Znyc.Admin.Security.Entitys;
using Znyc.Admin.Security.IServices;

namespace Znyc.Admin.Security.Application
{
    /// <summary>
    ///
    /// </summary>
    public class MenuApp
    {
        private readonly IMenuService service = App.GetService<IMenuService>();
        private readonly ISystemTypeService systemservice = App.GetService<ISystemTypeService>();
        private readonly IAdminUserService serviceUser = App.GetService<IAdminUserService>();

        /// <summary>
        /// 获取菜单树JsTree模式
        /// </summary>
        /// <returns></returns>
        public List<JsTreeModel> MenuFuntionJsTree()
        {
            List<JsTreeModel> list = new List<JsTreeModel>();

            List<Menu> listMenu = service.GetAllByIsNotDeleteAndEnabledMark().OrderBy(t => t.SortCode).ToList();
            foreach (Menu item in listMenu)
            {
                JsTreeModel jsTreeModel = new JsTreeModel
                {
                    id = item.Id,
                    text = item.FullName,
                    icon = item.Icon,
                    parent = item.ParentId
                };
                JsTreeStateModel jsTreeStateModel = new JsTreeStateModel
                {
                    disabled = false,
                    selected = true,
                    opened = true
                };
                jsTreeModel.state = jsTreeStateModel;
                list.Add(jsTreeModel);
            }

            return list.JsTreeJson();
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="ParentId"></param>
        /// <returns></returns>
        public List<MenuInputDto> GetMenu(long ParentId)
        {
            List<MenuInputDto> list = new List<MenuInputDto>();

            return list;
        }

        /// <summary>
        /// 获取菜单树TreeView模式
        /// </summary>
        /// <returns></returns>
        public List<TreeViewModel> MenuFuntionTreeViewJson()
        {
            List<TreeViewModel> list = new List<TreeViewModel>();
            List<Menu> listMenu = service.GetAll().OrderBy(t => t.SortCode).ToList();
            list = JsTreeJson(listMenu, 0, "").ToList<TreeViewModel>();
            return list;
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="data"></param>
        /// <param name="ParentId"></param>
        /// <param name="blank"></param>
        /// <returns></returns>
        private static string JsTreeJson(List<Menu> data, long ParentId, string blank)
        {
            List<TreeViewModel> list = new List<TreeViewModel>();
            TreeViewModel jsTreeModel = new TreeViewModel();
            List<Menu> ChildNodeList = data.FindAll(t => t.ParentId == ParentId);
            string tabline = "";

            if (ChildNodeList.Count > 0)
            {
                tabline = tabline + blank;
            }

            foreach (Menu entity in ChildNodeList)
            {
                jsTreeModel.text = entity.FullName;
                jsTreeModel.icon = entity.Icon;
                //list.Add(jsTreeModel);
                jsTreeModel.nodes = JsTreeJson(data, entity.Id, tabline).ToList<TreeViewModel>();
                list.Add(jsTreeModel);
            }

            return list.ToJson().ToString();
        }

        /// <summary>
        /// 根据用户角色获取菜单树VuexMenusTree模式
        /// </summary>
        /// <param name="roleIds">角色ID</param>
        /// <param name="systemCode">系统类型代码子系统代码</param>
        /// <returns></returns>
        public List<MenuOutputDto> GetMenuFuntionJson(long roleIds, string systemCode)
        {
            List<MenuOutputDto> list = new List<MenuOutputDto>();
            try
            {
                SystemType systemType = systemservice.GetByCode(systemCode);
                list = GetMenusByRole(roleIds, systemType.Id.ToString()).OrderBy(t => t.SortCode)
                    .MapTo<MenuOutputDto>();
            }
            catch (Exception ex)
            {
                Log4NetHelper.Error("根据用户角色和子系统代码获取菜单异常", ex);
            }

            return list;
        }

        /// <summary>
        /// 根据用户角色获取菜单树VuexMenusTree模式
        /// </summary>
        /// <param name="systemCode">系统类型代码子系统代码</param>
        /// <returns></returns>
        public List<MenuOutputDto> GetMenuFuntionJson(string systemCode)
        {
            List<MenuOutputDto> list = new List<MenuOutputDto>();
            try
            {
                SystemType systemType = systemservice.GetByCode(systemCode);
                List<Menu> listMenu = GetMenusByRole(systemType.Id).OrderBy(t => t.SortCode).ToList();
                list = listMenu.MapTo<MenuOutputDto>();
            }
            catch (Exception ex)
            {
                Log4NetHelper.Error("根据用户角色和子系统代码获取菜单异常", ex);
            }

            return list;
        }

        /// <summary>
        /// 构建菜单树
        /// </summary>
        /// <param name="menus">菜单列表</param>
        /// <param name="ParentId">父级Id</param>
        /// <returns></returns>
        public List<MenuOutputDto> BuildTreeMenus(List<Menu> menus, long ParentId = 0)
        {
            List<MenuOutputDto> resultList = new List<MenuOutputDto>();
            List<Menu> childNodeList = menus.FindAll(t => t.ParentId == ParentId);
            foreach (Menu menu in childNodeList)
            {
                MenuOutputDto menuOutputDto = new MenuOutputDto();
                menuOutputDto = menu.MapTo<MenuOutputDto>();
                List<Menu> subChildNodeList = menus.FindAll(t => t.ParentId == menu.Id);
                if (subChildNodeList.Count > 0)
                {
                    menuOutputDto.SubMenu = BuildTreeMenus(menus, menu.Id);
                }

                resultList.Add(menuOutputDto);
            }

            return resultList;
        }

        #region 获取 Vue Router

        /// <summary>
        /// 根据用户角色获取菜单树VueRouter模式
        /// </summary>
        /// <param name="roleIds">角色ID</param>
        /// <param name="systemCode">系统类型代码子系统代码</param>
        /// <returns></returns>
        public List<VueRouterModel> GetVueRouter(long roleIds, string systemCode)
        {
            List<VueRouterModel> list = new List<VueRouterModel>();
            try
            {
                SystemType systemType = systemservice.GetByCode(systemCode);
                List<Menu> listMenu = GetMenusByRole(roleIds, systemType.Id.ToString()).OrderBy(t => t.SortCode).ToList();
                List<MenuOutputDto> listTree = BuildTreeMenus(listMenu);
                list = BuildMenus(listTree);
            }
            catch (Exception ex)
            {
                Log4NetHelper.Error("根据用户角色和子系统代码获取菜单异常", ex);
            }

            return list;
        }

        /// <summary>
        /// 构建前端路由所需要的菜单
        /// </summary>
        /// <param name="menus">菜单列表</param>
        /// <returns></returns>
        public List<VueRouterModel> BuildMenus(List<MenuOutputDto> menus)
        {
            List<VueRouterModel> routers = new List<VueRouterModel>();
            foreach (MenuOutputDto menu in menus)
            {
                VueRouterModel router = new VueRouterModel
                {
                    hidden = menu.IsShow ? false : true,
                    name = GetRouteName(menu),
                    path = GetRouterPath(menu),
                    component = GetComponent(menu)
                };
                Meta meta = new Meta(menu.FullName, menu.Icon == null ? "" : menu.Icon, menu.IsCache);
                if (!menu.IsShow && menu.MenuType.Contains("M"))
                {
                    meta.activeMenu = menu.ActiveMenu;
                }

                router.meta = meta;
                List<MenuOutputDto> cMenus = menu.SubMenu;
                if (cMenus != null && menu.MenuType == "C")
                {
                    router.alwaysShow = true;
                    router.redirect = "noRedirect";
                    router.children = BuildMenus(cMenus);
                }
                else if (IsMeunDoc(menu))
                {
                    List<VueRouterModel> childrenList = new List<VueRouterModel>();
                    VueRouterModel childrenRouter = new VueRouterModel
                    {
                        path = menu.UrlAddress,
                        component = menu.Component,
                        name = menu.EnCode,
                        meta = new Meta(menu.FullName, menu.Icon == null ? "" : menu.Icon, menu.IsCache)
                    };
                    childrenRouter.meta = meta;
                    childrenList.Add(childrenRouter);
                    router.children = childrenList;
                }
                else if (IsMeunFrame(menu) && cMenus != null)
                {
                    if (!menu.IsShow)
                    {
                        router.hidden = true;
                    }

                    router.children = BuildMenus(cMenus);
                }

                routers.Add(router);
            }

            return routers;
        }

        /// <summary>
        /// 获取路由名称
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public string GetRouteName(MenuOutputDto menu)
        {
            string routerName = menu.EnCode;
            // 非外链并且是一级目录（类型为目录）
            if (IsMeunDoc(menu))
            {
                routerName = "";
            }

            return routerName;
        }

        /// <summary>
        /// 获取路由地址
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public string GetRouterPath(MenuOutputDto menu)
        {
            string routerPath = menu.UrlAddress;
            // 非外链并且是一级目录（类型为目录）
            if (0 == menu.ParentId && menu.MenuType == "C" && !menu.IsFrame)
            {
                routerPath = menu.UrlAddress; // "/" + menu.EnCode;
            }
            // 非外链并且是一级目录（类型为菜单）
            else if (IsMeunDoc(menu))
            {
                routerPath = "/";
            }

            return routerPath;
        }

        /// <summary>
        /// 获取组件信息
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public string GetComponent(MenuOutputDto menu)
        {
            string component = "Layout";
            if (!string.IsNullOrEmpty(menu.Component) && IsMeunFrame(menu) && !IsMeunDoc(menu))
            {
                component = menu.Component;
            }
            else if (string.IsNullOrEmpty(menu.Component) && IsParentView(menu))
            {
                component = "ParentView";
            }

            return component;
        }

        /// <summary>
        /// 是否为菜单内部跳转,并且是一级目录
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public bool IsMeunDoc(MenuOutputDto menu)
        {
            return menu.ParentId == 0 && menu.MenuType == "M" && !menu.IsFrame;
        }

        /// <summary>
        /// 是否为菜单内部跳转
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public bool IsMeunFrame(MenuOutputDto menu)
        {
            return menu.MenuType == "M" && !menu.IsFrame;
        }

        /// <summary>
        /// 是否为parent_view组件
        /// </summary>
        /// <param name="menu">菜单信息</param>
        /// <returns></returns>
        public bool IsParentView(MenuOutputDto menu)
        {
            return menu.ParentId != 0 && menu.MenuType == "C";
        }

        #endregion 获取 Vue Router

        /// <summary>
        /// 根据用户获取功能菜单
        /// </summary>
        /// <param name="roleIds">用户角色ID</param>
        /// <param name="systemId">系统类型ID/子系统ID</param>
        /// <returns></returns>
        public List<Menu> GetMenusByRole(long roleIds, string systemId)
        {
            List<Menu> menuListResult = new List<Menu>();
            if (roleIds == 0)
            {
                menuListResult = service.GetFunctions("", systemId, true);
            }
            else
            {
                //  string roleIDsStr = string.Format("'{0}'", roleIds.Replace(",", "','"));
                string roleIDsStr = "";
                menuListResult = service.GetFunctions(roleIDsStr, systemId, true);
            }

            return menuListResult;
        }

        /// <summary>
        /// 根据用户获取功能菜单
        /// </summary>
        /// <param name="systemId">系统类型ID/子系统ID</param>
        /// <returns></returns>
        public List<Menu> GetMenusByRole(long systemId)
        {
            List<Menu> menuListResult = service
                .GetAllByIsNotDeleteAndEnabledMark("MenuType in ('M','C') and SystemTypeId='" + systemId + "'")
                .ToList();
            return menuListResult;
        }

        /// <summary>
        /// 根据用户ID，获取对应的功能列表
        /// </summary>
        /// <param name="userID">用户ID</param>
        /// <param name="typeID">系统类别ID</param>
        /// <returns></returns>
        public List<MenuOutputDto> GetFunctionsByUser(long userId, string typeID)
        {
            string where = string.Format("");
            string roleId = serviceUser.Get(userId).RoleId.ToString();
            List<MenuOutputDto> functions = new List<MenuOutputDto>();
            string roleIDsStr = string.Format("'{0}'", roleId.Replace(",", "','"));
            if (roleIDsStr != "")
            {
                functions = service.GetFunctions(roleIDsStr, typeID).ToList().MapTo<MenuOutputDto>();
            }

            return functions;
        }

        /// <summary>
        /// 根据用户角色IDs，获取对应的功能列表
        /// </summary>
        /// <param name="roleIds">用户角色ID</param>
        /// <param name="systemId">系统类型ID/子系统ID</param>
        /// <returns></returns>
        public List<MenuOutputDto> GetFunctionsByRole(string roleIds, string systemId)
        {
            string where = string.Format("");
            List<MenuOutputDto> functions = new List<MenuOutputDto>();
            string roleIDsStr = string.Format("'{0}'", roleIds.Replace(",", "','"));
            if (roleIDsStr != "")
            {
                functions = service.GetFunctions(roleIDsStr, systemId).ToList().MapTo<MenuOutputDto>();
            }

            return functions;
        }

        /// <summary>
        /// 根据用户角色IDs，获取对应的功能列表
        /// </summary>
        /// <param name="systemId">系统类型ID/子系统ID</param>
        /// <returns></returns>
        public List<MenuOutputDto> GetFunctionsBySystem(string systemId)
        {
            List<MenuOutputDto> functions = new List<MenuOutputDto>();
            functions = service.GetFunctions(systemId).ToList().MapTo<MenuOutputDto>();
            return functions;
        }
    }
}