package auth

import (
	"context"
	"crypto/md5"
	"fmt"

	"github.com/youruser/base/internal/svc"
	"github.com/youruser/base/internal/types"
	"github.com/youruser/base/model"

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

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

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.RegisterRequest) (resp *types.UserInfo, err error) {
	_, err = model.FindOneByUsername(l.ctx, l.svcCtx.DB, req.Username)
	if err == nil {
		return nil, fmt.Errorf("用户名已被注册")
	}
	if err != model.ErrNotFound {
		return nil, fmt.Errorf("检查用户名失败: %v", err)
	}

	_, err = model.FindOneByPhone(l.ctx, l.svcCtx.DB, req.Phone)
	if err == nil {
		return nil, fmt.Errorf("手机号已被注册")
	}
	if err != model.ErrNotFound {
		return nil, fmt.Errorf("检查手机号失败: %v", err)
	}

	user := &model.User{
		Username: req.Username,
		Email:    req.Email,
		Password: fmt.Sprintf("%x", md5.Sum([]byte(req.Password))),
		Phone:    req.Phone,
		Role:     model.RoleUser,
		Source:   model.SourceRegister,
		Status:   1,
	}

	id, err := model.Insert(l.ctx, l.svcCtx.DB, user)
	if err != nil {
		return nil, fmt.Errorf("创建用户失败: %v", err)
	}

	user, err = model.FindOne(l.ctx, l.svcCtx.DB, id)
	if err != nil {
		return nil, fmt.Errorf("查询用户失败: %v", err)
	}

	resp = &types.UserInfo{
		Id:        user.Id,
		Username:  user.Username,
		Email:     user.Email,
		Phone:     user.Phone,
		Role:      user.Role,
		Source:    user.Source,
		Remark:    user.Remark,
		Status:    int(user.Status),
		CreatedAt: user.CreatedAt.Format("2006-01-02 15:04:05"),
		UpdatedAt: user.UpdatedAt.Format("2006-01-02 15:04:05"),
	}

	l.Infof("注册成功，userId=%d", user.Id)
	return resp, nil
}