using LFlow.Base.Interfaces;
using LFlow.Base.Utils;
using LFlow.Cache.Interface;
using LFlow.Permission.Model;
using Mapster;
using SqlSugar;

namespace LFlow.Permission.Service
{
    /// <summary>
    /// 角色服务
    /// </summary>
    public class PermissionService(IRepo<PermissionModel, string> repo, ISelfCache cacher) : IPermissionService
    {
        /// <summary>
        /// 添加权限项
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public Task<PermissionDto> AddPermissionAsync(PermissionDto model)
        {
            var savedModel = repo.SaveOrUpdate(model.Adapt<PermissionModel>(), isUpdate: false);
            var result = savedModel?.MapTo<PermissionDto>() ?? throw new InvalidOperationException("Failed to add the permission model.");
            return Task.FromResult(result);
        }

        /// <summary>
        /// 删除权限项并清理缓存
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public Task<int> DeletePermissionAsync(string id)
        {
            cacher.RemoveAsync(id);
            return Task.FromResult(repo.DeleteById(id));
        }
        /// <summary>
        /// 根据ID获取权限
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public async Task<PermissionDto> GetPermissionAsync(string id)
        {
            var cachedPermission = await cacher.GetAsync<PermissionModel>(id);
            if (cachedPermission != null)
            {
                return cachedPermission!.MapTo<PermissionDto>()!;
            }
            var permission = await Task.FromResult(repo.Get(id));
            if (permission != null)
            {
                await cacher.SetAsync(id, permission);
            }
            return permission?.MapTo<PermissionDto>() ?? new PermissionDto();
        }
        /// <summary>
        /// 获取权限列表
        /// </summary>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <param name="total"></param>
        /// <returns></returns>
        public Task<List<PermissionDto>> GetPermissionListAsync(int pageIndex, int pageSize, ref int total)
        {
            return Task.FromResult(repo.GetAll(pageIndex, pageSize, ref total).Adapt<List<PermissionDto>>());
        }
        /// <summary>
        /// 获取程序权限列表
        /// </summary>
        /// <param name="progID"></param>
        /// <returns></returns>
        public Task<List<PermissionDto>> GetProgPerminssionListAsync(string progID)
        {
            return Task.FromResult(repo.Search(new PermissionModel
            {
                ProgID = progID
            }).Adapt<List<PermissionDto>>());
        }

        /// <summary>
        /// 更新权限项
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public Task<PermissionDto> UpdatePermissionAsync(PermissionDto model)
        {
            if (model != null && !string.IsNullOrEmpty(model.ID))
            {
                cacher.RemoveAsync(model.ID);
            }
            if (model != null)
            {
                var permissionModel = model?.Adapt<PermissionModel>() ?? throw new ArgumentNullException(nameof(model));
                var savedModel = repo.SaveOrUpdate(permissionModel, isUpdate: true);
                return Task.FromResult(savedModel?.MapTo<PermissionDto>() ?? throw new InvalidOperationException("Failed to update the permission model."));
            }
            throw new ArgumentNullException(nameof(model));
        }
    }
}