using FreeSql;

using LiveForum.Code.Base;
using LiveForum.Code.JwtInfrastructure;
using LiveForum.IService.Others;
using LiveForum.Model;
using LiveForum.Model.Dto.Others;

using System;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace LiveForum.Service.Others
{
    public class FeedbackService : IFeedbackService
    {
        private readonly IBaseRepository<T_Feedbacks> _feedbackRepository;
        private readonly JwtUserInfoModel _userInfoModel;

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="feedbackRepository">反馈仓储</param>
        /// <param name="userInfoModel">用户信息模型</param>
        public FeedbackService(
            IBaseRepository<T_Feedbacks> feedbackRepository,
            JwtUserInfoModel userInfoModel)
        {
            _feedbackRepository = feedbackRepository;
            _userInfoModel = userInfoModel;
        }

        /// <summary>
        /// 提交反馈建议
        /// </summary>
        /// <param name="request">请求参数</param>
        /// <returns></returns>
        public async Task<BaseResponse<FeedbackRespDto>> SubmitFeedback(FeedbackReq request)
        {
            try
            {
                // 验证反馈内容
                if (string.IsNullOrWhiteSpace(request.Content))
                {
                    return new BaseResponse<FeedbackRespDto>(ResponseCode.Error, "反馈内容不能为空");
                }

                // 获取当前用户ID
                var userId = _userInfoModel.UserId;
                if (userId <= 0)
                {
                    return new BaseResponse<FeedbackRespDto>(ResponseCode.Unauthorized, "用户未登录");
                }

                // 验证反馈类型
                if (request.FeedbackType < 1 || request.FeedbackType > 3)
                {
                    return new BaseResponse<FeedbackRespDto>(ResponseCode.Error, "反馈类型无效");
                }

                // 创建反馈记录
                var feedback = new T_Feedbacks
                {
                    UserId = userId,
                    FeedbackType = (int)request.FeedbackType,
                    Content = request.Content,
                    Contact = request.Contact,
                    Images = request.Images != null && request.Images.Count > 0 
                        ? JsonConvert.SerializeObject(request.Images) 
                        : null,
                    Status = 0, // 0-待处理
                    CreatedAt = DateTime.Now,
                    UpdatedAt = DateTime.Now
                };

                // 保存到数据库
                await _feedbackRepository.InsertAsync(feedback);

                return new BaseResponse<FeedbackRespDto>(new FeedbackRespDto
                {
                    FeedbackId = feedback.Id,
                    CreatedAt = feedback.CreatedAt
                });
            }
            catch (Exception ex)
            {
                return new BaseResponse<FeedbackRespDto>(ResponseCode.Error, $"提交反馈失败：{ex.Message}");
            }
        }
    }
}