用户登录和接口鉴权

internal/storage/repository/user.go

@@ -0,0 +1,84 @@
+// Package repository 提供数据访问层实现
+// 包含各种数据实体的仓库接口和实现
+package repository
+
+import (
+	"fmt"
+
+	"git.huangwc.com/pig/pig-farm-controller/internal/model"
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+)
+
+// UserRepo 用户仓库接口
+type UserRepo interface {
+	// CreateUser 创建新用户
+	CreateUser(username, password string) (*model.User, error)
+
+	// FindByUsername 根据用户名查找用户
+	FindByUsername(username string) (*model.User, error)
+
+	// FindByID 根据ID查找用户
+	FindByID(id uint) (*model.User, error)
+}
+
+// userRepo 用户仓库实现
+type userRepo struct {
+	db *gorm.DB
+}
+
+// NewUserRepo 创建用户仓库实例
+func NewUserRepo(db *gorm.DB) UserRepo {
+	return &userRepo{
+		db: db,
+	}
+}
+
+// CreateUser 创建新用户
+func (r *userRepo) CreateUser(username, password string) (*model.User, error) {
+	// 检查用户是否已存在
+	var existingUser model.User
+	result := r.db.Where("username = ?", username).First(&existingUser)
+	if result.Error == nil {
+		return nil, fmt.Errorf("用户已存在")
+	}
+
+	// 对密码进行哈希处理
+	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return nil, fmt.Errorf("密码加密失败: %v", err)
+	}
+
+	// 创建新用户
+	user := &model.User{
+		Username:     username,
+		PasswordHash: string(hashedPassword),
+	}
+
+	result = r.db.Create(user)
+	if result.Error != nil {
+		return nil, fmt.Errorf("用户创建失败: %v", result.Error)
+	}
+
+	return user, nil
+}
+
+// FindByUsername 根据用户名查找用户
+func (r *userRepo) FindByUsername(username string) (*model.User, error) {
+	var user model.User
+	result := r.db.Where("username = ?", username).First(&user)
+	if result.Error != nil {
+		return nil, result.Error
+	}
+	return &user, nil
+}
+
+// FindByID 根据ID查找用户
+func (r *userRepo) FindByID(id uint) (*model.User, error) {
+	var user model.User
+	result := r.db.First(&user, id)
+	if result.Error != nil {
+		return nil, result.Error
+	}
+	return &user, nil
+}