manta/gofaster/backend/internal/auth/service/user_service.go

package service

import (
	"context"
	"gofaster/internal/auth/model"
	"gofaster/internal/auth/repository"

	"gorm.io/gorm"
)

type UserService struct {
	repo repository.UserRepository
	db   *gorm.DB
}

func NewUserService(repo repository.UserRepository, db *gorm.DB) *UserService {
	return &UserService{
		repo: repo,
		db:   db,
	}
}

func (s *UserService) CreateUser(ctx context.Context, user *model.User) error {
	return s.repo.Create(ctx, user)
}

func (s *UserService) GetUserByID(ctx context.Context, id uint) (*model.User, error) {
	return s.repo.GetByID(ctx, id)
}

func (s *UserService) UpdateUser(ctx context.Context, user *model.User) error {
	return s.repo.Update(ctx, user)
}

func (s *UserService) DeleteUser(ctx context.Context, id uint) error {
	return s.repo.Delete(ctx, id)
}

func (s *UserService) ListUsers(ctx context.Context, page, pageSize int) ([]*model.User, int64, error) {
	// 计算偏移量
	offset := (page - 1) * pageSize
	return s.repo.List(ctx, offset, pageSize)
}

// GetByID 根据ID获取用户（无context版本，用于密码服务）
func (s *UserService) GetByID(id uint) (*model.User, error) {
	ctx := context.Background()
	return s.repo.GetByID(ctx, id)
}

// Update 更新用户（无context版本，用于密码服务）
func (s *UserService) Update(user *model.User) error {
	ctx := context.Background()
	return s.repo.Update(ctx, user)
}

// GetRoles 获取角色列表
func (s *UserService) GetRoles(ctx context.Context, page, pageSize int) ([]*model.Role, int64, error) {
	roleRepo := repository.NewRoleRepo(s.db)
	roles, total, err := roleRepo.List(page, pageSize)
	if err != nil {
		return nil, 0, err
	}

	// 转换类型
	var rolePtrs []*model.Role
	for i := range roles {
		rolePtrs = append(rolePtrs, &roles[i])
	}

	return rolePtrs, total, nil
}