vpn-panel
88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
package store
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import (
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"context"
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"errors"
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"github.com/google/uuid"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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"vpn-panel/internal/models"
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)
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var ErrAdminExists = errors.New("администратор уже зарегистрирован")
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type UserStore struct {
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pool *pgxpool.Pool
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}
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func NewUserStore(pool *pgxpool.Pool) *UserStore {
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return &UserStore{pool: pool}
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}
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func (s *UserStore) HasAdmin(ctx context.Context) (bool, error) {
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var n int
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err := s.pool.QueryRow(ctx,
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`SELECT COUNT(*) FROM users WHERE role = 'admin'`,
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).Scan(&n)
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return n > 0, err
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}
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func (s *UserStore) CreateAdmin(ctx context.Context, email, passwordHash string) (*models.User, error) {
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has, err := s.HasAdmin(ctx)
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if err != nil {
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return nil, err
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}
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if has {
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return nil, ErrAdminExists
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}
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var u models.User
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err = s.pool.QueryRow(ctx, `
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INSERT INTO users (email, password_hash, role)
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VALUES ($1, $2, 'admin')
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RETURNING id, email, password_hash, role, created_at
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`, email, passwordHash).Scan(
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&u.ID, &u.Email, &u.PasswordHash, &u.Role, &u.CreatedAt,
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)
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if err != nil {
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return nil, err
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}
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return &u, nil
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}
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func (s *UserStore) GetByEmail(ctx context.Context, email string) (*models.User, error) {
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var u models.User
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err := s.pool.QueryRow(ctx, `
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SELECT id, email, password_hash, role, created_at
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FROM users WHERE email = $1
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`, email).Scan(&u.ID, &u.Email, &u.PasswordHash, &u.Role, &u.CreatedAt)
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if errors.Is(err, pgx.ErrNoRows) {
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return nil, nil
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}
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if err != nil {
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return nil, err
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}
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return &u, nil
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}
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func (s *UserStore) CountUsers(ctx context.Context) (int, error) {
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var n int
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err := s.pool.QueryRow(ctx, `SELECT COUNT(*) FROM users`).Scan(&n)
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return n, err
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}
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func (s *UserStore) GetAdminID(ctx context.Context) (uuid.UUID, bool, error) {
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var id uuid.UUID
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err := s.pool.QueryRow(ctx,
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`SELECT id FROM users WHERE role = 'admin' LIMIT 1`,
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).Scan(&id)
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if errors.Is(err, pgx.ErrNoRows) {
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return uuid.Nil, false, nil
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}
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if err != nil {
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return uuid.Nil, false, err
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}
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return id, true, nil
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}
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