// Code scaffolded by goctl. Safe to edit.
// goctl 1.9.2

package user

import (
	"context"
	"errors"

	"juwan-backend/app/users/api/internal/svc"
	"juwan-backend/app/users/api/internal/types"
	"juwan-backend/app/users/rpc/pb"
	"juwan-backend/common/utils"

	"github.com/google/uuid"
	"github.com/zeromicro/go-zero/core/logx"
)

type RegisterLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

// 用户注册接口
func NewRegisterLogic(ctx context.Context, svcCtx *svc.ServiceContext) *RegisterLogic {
	return &RegisterLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *RegisterLogic) Register(req *types.RegisterReq) (resp *types.RegisterResp, err error) {
	// 检查用户是否已存在
	existingUser, err := l.svcCtx.UserRpc.GetUserByUsername(l.ctx, &pb.GetUserByUsernameReq{
		Username: req.Username,
	})
	if err == nil && existingUser != nil {
		return nil, errors.New("用户已存在")
	}

	// 生成用户ID
	userId, err := uuid.NewRandom()
	if err != nil {
		return nil, errors.New("注册失败：无法生成用户ID")
	}

	// 加密密码
	hashedPassword, err := utils.HashPassword(req.Password)
	if err != nil {
		return nil, errors.New("注册失败：密码加密失败")
	}

	// 创建新用户
	newUser, err := l.svcCtx.UserRpc.AddUsers(l.ctx, &pb.AddUsersReq{
		UserId:   userId.String(),
		Username: req.Username,
		Passwd:   hashedPassword,
		Phone:    req.Phone,
		State:    true,
	})
	if err != nil {
		l.Errorf("AddUsers failed: %v", err)
		return nil, errors.New("注册失败：创建用户失败")
	}

	// 返回响应
	return &types.RegisterResp{
		UserId:   int64(newUser.), // RPC 返回的可能是用户信息，这里简化处理
		Username: req.Username,
		Email:    req.Email,
		Message:  "注册成功",
	}, nil
}