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server/internal/services/user_service.go

@@ -0,0 +1,95 @@
+package services
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"errors"
+	"time"
+
+	"github.com/inchstep/server/internal/models"
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+)
+
+type UserService struct {
+	db *gorm.DB
+}
+
+func NewUserService(db *gorm.DB) *UserService {
+	return &UserService{db: db}
+}
+
+func generateID() string {
+	b := make([]byte, 16)
+	rand.Read(b)
+	return hex.EncodeToString(b)
+}
+
+func (s *UserService) RegisterByPhone(phone string) (*models.User, error) {
+	var existing models.User
+	if err := s.db.Where("phone = ?", phone).First(&existing).Error; err == nil {
+		return nil, errors.New("该手机号已注册")
+	}
+	user := &models.User{
+		ID:        generateID(),
+		Phone:     &phone,
+		Privacy:   models.PrivacyFriendsOnly,
+		Points:    0,
+		CreatedAt: time.Now(),
+		UpdatedAt: time.Now(),
+	}
+	if err := s.db.Create(user).Error; err != nil {
+		return nil, err
+	}
+	return user, nil
+}
+
+func (s *UserService) GetByPhone(phone string) (*models.User, error) {
+	var user models.User
+	if err := s.db.Where("phone = ?", phone).First(&user).Error; err != nil {
+		return nil, err
+	}
+	return &user, nil
+}
+
+func (s *UserService) GetByID(id string) (*models.User, error) {
+	var user models.User
+	if err := s.db.First(&user, "id = ?", id).Error; err != nil {
+		return nil, err
+	}
+	return &user, nil
+}
+
+func (s *UserService) UpdateProfile(id string, updates map[string]interface{}) (*models.User, error) {
+	allowed := map[string]bool{"nickname": true, "avatar": true, "bio": true, "motto": true, "privacy": true}
+	filtered := make(map[string]interface{})
+	for k, v := range updates {
+		if allowed[k] {
+			filtered[k] = v
+		}
+	}
+	if err := s.db.Model(&models.User{}).Where("id = ?", id).Updates(filtered).Error; err != nil {
+		return nil, err
+	}
+	return s.GetByID(id)
+}
+
+func (s *UserService) DeleteAccount(id string) error {
+	return s.db.Model(&models.User{}).Where("id = ?", id).Updates(map[string]interface{}{
+		"phone":    nil,
+		"nickname": nil,
+		"avatar":   nil,
+		"bio":      nil,
+		"motto":    nil,
+		"privacy":  models.PrivacyPrivate,
+	}).Error
+}
+
+func HashPassword(password string) (string, error) {
+	bytes, err := bcrypt.GenerateFromPassword([]byte(password), 12)
+	return string(bytes), err
+}
+
+func CheckPassword(hash, password string) bool {
+	return bcrypt.CompareHashAndPassword([]byte(hash), []byte(password)) == nil
+}