using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Web.Mvc;
using Abp.Application.Services.Dto;
using Abp.Auditing;
using Abp.Authorization;
using Abp.Domain.Repositories;
using Abp.Runtime.Caching;
using WePlatform.Authorization;
using WePlatform.BaseInfo;
using WePlatform.BaseSystem.Functions.Dto;
using WePlatform.Configuration;
using IwbZero.AppServiceBase;
using IwbZero.Auditing;
using IwbZero.Authorization.Base.Users;
using IwbZero.Runtime.Session;

namespace WePlatform.BaseSystem.Functions
{
    [AbpAuthorize, AuditLog("系统功能菜单", "菜单")]
    public class FunctionsAppService : IwbAsyncCrudAppService<SysFunction, FunctionDto, int, IwbPagedRequestDto, FunctionCreateDto, FunctionUpdateDto>, IFunctionsAppService
    {

        public FunctionsAppService(ICacheManager cacheManager, IRepository<SysFunction, int> repository) : base(repository, "FunctionNo")
        {
            CacheManager = cacheManager;
        }

        protected override bool KeyIsAuto { get; set; } = false;
        protected override string KeyExistMessage => string.Format(L(IwbLanguageMessage.KeyExistMessageFormatter), L("function"));
        protected override string KeyNotExistMessage => string.Format(L(IwbLanguageMessage.KeyNotExistMessageFormatter), L("function"));
        #region SelectList

        /// <summary>
        /// 获取 Function 下拉框选项
        /// </summary>
        /// <returns></returns>
        [DisableAuditing]
        public override async Task<List<SelectListItem>> GetSelectList()
        {
            var list = await Repository.GetAllListAsync();
            var sList = new List<SelectListItem>();
            foreach (var l in list)
            {
                sList.Add(new SelectListItem() { Value = l.FunctionNo, Text = l.FunctionName });
            }

            return sList;
        }

        /// <summary>
        /// 获取 Function 下拉框选项
        /// </summary>
        /// <returns></returns>
        [DisableAuditing]
        public override async Task<string> GetSelectStr()
        {
            var list = await Repository.GetAllListAsync();
            string options = "";
            foreach (var f in list)
            {
                options += "<option value=\"" + f.FunctionNo + "\">" + f.FunctionName + "</option>";
            }

            return options;
        }

        #endregion

        #region CURD



        [DisableAuditing]
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgQuery)]
        public override async Task<PagedResultDto<FunctionDto>> GetAll(IwbPagedRequestDto input)
        {
            var query = CreateFilteredQuery(input).Where(a => a.FunctionType != 0);
            query = ApplyFilter(query, input);
            var totalCount = await AsyncQueryableExecuter.CountAsync(query);
            query = query.OrderBy(a => a.FunctionType).ThenBy(a => a.Sort);
            //query = ApplyPaging(query, input);
            var entities = await AsyncQueryableExecuter.ToListAsync(query);

            return new PagedResultDto<FunctionDto>(totalCount, entities.Select(MapToEntityDto).ToList());
        }
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgCreate)]
        public override async Task Create(FunctionCreateDto input)
        {
            if (AbpSession.UserType != UsersAndRolesTypeDefinition.Supper)
            {
                ThrowError(IwbLanguageMessage.NoPermissionOperation);
            }
            input.ParentNo = string.IsNullOrEmpty(input.ParentNo) ? "0" : input.ParentNo;
            var entity = await Repository.FirstOrDefaultAsync(a => a.FunctionNo == input.ParentNo);
            if (entity == null)
            {
                ThrowError("FunctionHasNoParent");
                return;
            }

            input.Depth = entity.Depth + 1;
            //input.FunctionPath = entity.FunctionPath + "," + input.FunctionNo;
            input.PermissionName = entity.PermissionName + "." + input.FunctionNo;
            input.NeedAuth = true;
            await CreateEntity(input);

        }
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgUpdate)]
        public override async Task Update(FunctionUpdateDto input)
        {
            input.ParentNo = string.IsNullOrEmpty(input.ParentNo) ? "0" : input.ParentNo;
            input.NeedAuth = true;
            var entity = await Repository.FirstOrDefaultAsync(a => a.Id == input.Id);
            if (entity == null)
            {
                CheckErrors(NotExistMessage);
                return;
            }
            if (AbpSession.GetClaimValue(IwbClaimTypes.UserName) != UserBase.AdminUserName)
            {
                input.FunctionType = entity.FunctionType;
                input.PermissionName = entity.PermissionName;
                input.Action = entity.Action;
                input.Controller = entity.Controller;
                //input.FunctionPath = entity.FunctionPath;
                input.Script = entity.Script;
                input.Class = entity.Class;
                input.Url = entity.Url;
            }
            MapToEntity(input, entity);
            await Repository.UpdateAsync(entity);
            await CacheManager.GetCache(IwbCacheNames.FunctionCache).RemoveAsync(entity.FunctionNo);
            await CacheManager.GetCache(IwbCacheNames.NavFunctionCache).RemoveAsync(entity.FunctionNo);
        }
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgDelete)]
        public override async Task Delete(EntityDto<int> input)
        {
            var entity = await Repository.FirstOrDefaultAsync(a => a.Id == input.Id);
            if ((await Repository.GetAllListAsync(a => a.ParentNo == entity.FunctionNo)).Any())
            {
                ThrowError("FunctionHasChildren");
            }
            await Repository.DeleteAsync(entity);
            await CurrentUnitOfWork.SaveChangesAsync();
            await CacheManager.GetCache(IwbCacheNames.FunctionCache).RemoveAsync(entity.FunctionNo);
            await CacheManager.GetCache(IwbCacheNames.NavFunctionCache).RemoveAsync(entity.FunctionNo);
        }

        /// <summary>
        /// 上移
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgMoveUp), AuditLog("上移菜单")]
        public async Task MoveUp(MoveUpFunctionDto input)
        {
            var fun = await GetEntityById(input.Id);
            int sort = fun.Sort;
            var prevFun = await Repository.GetAsync(input.PrevId);
            int prevSort = prevFun.Sort;
            fun.Sort = prevSort;
            prevFun.Sort = sort;
            await CurrentUnitOfWork.SaveChangesAsync();
        }
        /// <summary>
        /// 下移
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgMoveDown), AuditLog("下移菜单")]
        public async Task MoveDown(MoveDownFunctionDto input)
        {
            var fun = await GetEntityById(input.Id);
            int sort = fun.Sort;
            var nextFun = await Repository.GetAsync(input.NextId);
            int nextSort = nextFun.Sort;
            fun.Sort = nextSort;
            nextFun.Sort = sort;
            await CurrentUnitOfWork.SaveChangesAsync();
        }

        /// <summary>
        /// 强制刷新
        /// </summary>
        /// <returns></returns>
        [AbpAuthorize(PermissionNames.PagesSystemMgFunctionMgRefresh), AuditLog("强制刷新")]
        public async Task Refresh()
        {
            await CacheManager.GetCache(IwbCacheNames.FunctionCache).ClearAsync();
            await CacheManager.GetCache(IwbCacheNames.NavFunctionCache).ClearAsync();
        }



        #endregion

        /// <summary>
        /// 重写排序方法
        /// </summary>
        /// <param name="query"></param>
        /// <param name="input"></param>
        /// <returns></returns>
        protected override IQueryable<SysFunction> ApplySorting(IQueryable<SysFunction> query, IwbPagedRequestDto input)
        {
            return query.OrderBy(a => a.FunctionType).ThenBy(a => a.Sort);
        }

        protected override SysFunction MapToEntity(FunctionCreateDto input)
        {
            return base.MapToEntity(input);
        }

    }
}