tsk-27: Added endpoint to delete scheduled message event (#31)

Closes #27

Reviewed-on: phoenix/textsender-api#31
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/store/mock/scheduled_message_event_store.go

@@ -46,11 +46,54 @@ func (m *MockScheduledMessageEventStore) Get(ctx context.Context, id uuid.UUID)
 	if _, exists := m.ScheduledMessageEvents[id]; exists {
 		return m.ScheduledMessageEvents[id], nil
 	} else {
-		fmt.Println("Not found")
 		return nil, fmt.Errorf("Not found")
 	}
 }
 
+func (m *MockScheduledMessageEventStore) Delete(ctx context.Context, id uuid.UUID) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if m.Error != nil {
+		return m.Error
+	}
+
+	if id == uuid.Nil {
+		return fmt.Errorf("Id is nil")
+	}
+
+	if _, exists := m.ScheduledMessageEvents[id]; exists {
+		originalAmount := len(m.ScheduledMessageEvents)
+		copiedEvents := make(map[uuid.UUID]*scheduling.ScheduledMessageEvent)
+		copiedEventsKey := make(map[ScheduledMessageEventKey]*scheduling.ScheduledMessageEvent)
+
+		for i, schMsgEvent := range m.ScheduledMessageEvents {
+			key := ScheduledMessageEventKey{RecipientId: schMsgEvent.RecipientId, MessageId: schMsgEvent.MessageId, ScheduledMessageId: schMsgEvent.ScheduledMessageId}
+			if schMsgEvent.Id != id {
+				copiedEvents[i] = schMsgEvent
+				copiedEventsKey[key] = schMsgEvent
+			}
+		}
+
+		if originalAmount > 1 {
+			if len(copiedEvents) > 0 && len(copiedEventsKey) > 0 {
+				m.ScheduledMessageEvents = copiedEvents
+				m.ScheduledMessageEventsByKey = copiedEventsKey
+				return nil
+			} else {
+				return fmt.Errorf("Not removed")
+			}
+		} else {
+			m.ScheduledMessageEvents = make(map[uuid.UUID]*scheduling.ScheduledMessageEvent)
+			m.ScheduledMessageEventsByKey = make(map[ScheduledMessageEventKey]*scheduling.ScheduledMessageEvent)
+
+			return nil
+		}
+	} else {
+		return fmt.Errorf("Not found")
+	}
+}
+
 func (m *MockScheduledMessageEventStore) CreateScheduledMessageEvent(ctx context.Context, event *scheduling.ScheduledMessageEvent) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()

internal/store/scheduled_message_event_store.go

@@ -13,6 +13,7 @@ import (
 
 type ScheduledMessageEventStore interface {
 	Get(ctx context.Context, id uuid.UUID) (*scheduling.ScheduledMessageEvent, error)
+	Delete(ctx context.Context, id uuid.UUID) error
 	CreateScheduledMessageEvent(ctx context.Context, event *scheduling.ScheduledMessageEvent) error
 	Exists(ctx context.Context, event *scheduling.ScheduledMessageEvent) (bool, error)
 }
@@ -35,12 +36,28 @@ func (s *PGScheduledMessageEventStore) Get(ctx context.Context, id uuid.UUID) (*
 
 	if err == pgx.ErrNoRows {
 		return nil, nil
-	}
-	if err != nil {
+	} else if err != nil {
 		return nil, fmt.Errorf("getting scheduled message event by ID: %w", err)
+	} else {
+		return &event, nil
+	}
+}
+
+func (s *PGScheduledMessageEventStore) Delete(ctx context.Context, id uuid.UUID) error {
+	query := `
+		DELETE FROM scheduled_message_events WHERE id = $1
+	`
+
+	commandTag, err := s.db.Exec(ctx, query, id)
+	if err != nil {
+		return fmt.Errorf("error deleting event: %w", err)
 	}
 
-	return &event, nil
+	if commandTag.RowsAffected() == 0 {
+		return fmt.Errorf("no event found with id %d", id)
+	} else {
+		return nil
+	}
 }
 
 func (s *PGScheduledMessageEventStore) CreateScheduledMessageEvent(ctx context.Context, event *scheduling.ScheduledMessageEvent) error {