using Microsoft.EntityFrameworkCore;
using YD_XinWei.Api.Context;
using YD_XinWei.Api.Services.Interface;
using YD_XinWei.Api.Utilities;
using YD_XinWei.Commons.Dto.Teacher;
using YD_XinWei.Commons.Exceptions;

namespace YD_XinWei.Api.Services.Impl
{
    public class TeacherService : ITeacherService
    {
        public UserContext _userContext;

        public TeacherService(UserContext userContext)
        {
            _userContext = userContext;
        }
        public async Task<TeacherProfileDto> TeacherProfile()
        {
            var userId = UserLoginContext.Current.UserId;

            var res = await _userContext.Users.Where(x => x.User_Id == userId).Select(x => new TeacherProfileDto()
            {
                UserTrueName = x.UserTrueName,
                BirthDate = x.BirthDate,
                Gender = x.Gender,
                HeadImageUrl = x.HeadImageUrl,
                Height = x.Height,
                Weight = x.Weight
            }).FirstOrDefaultAsync();

            return res;
        }

        public async Task ModifyTeacherProfile(TeacherProfileDto paramDto)
        {
            var userId = UserLoginContext.Current.UserId;

            var model = await _userContext.Users.FirstOrDefaultAsync(x => x.User_Id == userId);

            if (model == null)
                throw new BizException("更新数据为空");

            model.UserTrueName = !string.IsNullOrWhiteSpace(paramDto.UserTrueName) ? paramDto.UserTrueName : model.UserTrueName;
            model.HeadImageUrl = !string.IsNullOrWhiteSpace(paramDto.HeadImageUrl) ? paramDto.HeadImageUrl : model.HeadImageUrl;
            model.BirthDate = paramDto.BirthDate ?? model.BirthDate;
            model.Gender = paramDto.Gender ?? model.Gender;
            model.Height = paramDto.Height ?? model.Height;
            model.Weight = paramDto.Weight ?? model.Weight;

            if (_userContext.Entry(model).State == EntityState.Modified)
            {
                await _userContext.SaveChangesAsync();
            }
        }

        public async Task ModifyTeacherPwd(ModifyTeacherPwdDto paramDto)
        {
            if (paramDto.NewrPwd != paramDto.ConfirmPwd)
                throw new BizException("确认密码与新密码不一致");

            var userId = UserLoginContext.Current.UserId;

            var model = await _userContext.Users.FirstOrDefaultAsync(x => x.User_Id == userId && x.UserPwd == paramDto.OldPwd);

            if (model == null)
                throw new BizException("旧密码输入有误");

            model.UserPwd = paramDto.NewrPwd;

            if (_userContext.Entry(model).State == EntityState.Modified)
            {
                await _userContext.SaveChangesAsync();
            }
        }
    }
}