package subscriptions

import (
	"context"
	"strings"

	"github.com/tech/sendico/edge/callbacks/internal/storage"
	"github.com/tech/sendico/pkg/merrors"
)

type service struct {
	repo storage.EndpointRepo
}

// New creates endpoint resolver service.
func New(deps Dependencies) (Resolver, error) {
	if deps.EndpointRepo == nil {
		return nil, merrors.InvalidArgument("subscriptions: endpoint repo is required", "endpointRepo")
	}

	return &service{repo: deps.EndpointRepo}, nil
}

func (s *service) Resolve(ctx context.Context, clientID, eventType string) ([]storage.Endpoint, error) {
	if strings.TrimSpace(clientID) == "" {
		return nil, merrors.InvalidArgument("subscriptions: client id is required", "clientID")
	}
	if strings.TrimSpace(eventType) == "" {
		return nil, merrors.InvalidArgument("subscriptions: event type is required", "eventType")
	}

	endpoints, err := s.repo.FindActiveByClientAndType(ctx, clientID, eventType)
	if err != nil {
		return nil, err
	}

	return endpoints, nil
}