85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
// Package notifysvc
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// Path: /internal/platform/services/notifications
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// File: service.go
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// ToDo: carve out sql
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package notifysvc
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import (
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"context"
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"database/sql"
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"errors"
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"time"
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domain "synlotto-website/internal/domain/notifications"
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)
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type Service struct {
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DB *sql.DB
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Now func() time.Time
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Timeout time.Duration
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}
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func New(db *sql.DB, opts ...func(*Service)) *Service {
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s := &Service{
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DB: db,
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Now: time.Now,
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Timeout: 5 * time.Second,
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}
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for _, opt := range opts {
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opt(s)
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}
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return s
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}
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func WithTimeout(d time.Duration) func(*Service) { return func(s *Service) { s.Timeout = d } }
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// List returns newest-first notifications for a user.
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func (s *Service) List(userID int64) ([]domain.Notification, error) {
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ctx, cancel := context.WithTimeout(context.Background(), s.Timeout)
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defer cancel()
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const q = `
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SELECT id, title, body, is_read, created_at
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FROM notifications
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WHERE userId = ?
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ORDER BY created_at DESC`
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rows, err := s.DB.QueryContext(ctx, q, userID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var out []domain.Notification
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for rows.Next() {
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var n domain.Notification
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if err := rows.Scan(&n.ID, &n.Title, &n.Body, &n.IsRead, &n.CreatedAt); err != nil {
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return nil, err
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}
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out = append(out, n)
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}
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return out, rows.Err()
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}
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func (s *Service) GetByID(userID, id int64) (*domain.Notification, error) {
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ctx, cancel := context.WithTimeout(context.Background(), s.Timeout)
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defer cancel()
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const q = `
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SELECT id, title, body, is_read, created_at
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FROM notifications
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WHERE userId = ? AND id = ?`
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var n domain.Notification
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err := s.DB.QueryRowContext(ctx, q, userID, id).
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Scan(&n.ID, &n.Title, &n.Body, &n.IsRead, &n.CreatedAt)
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if errors.Is(err, sql.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 &n, nil
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}
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