Initial MVP commit

internal/core/service.go

@@ -0,0 +1,35 @@
+package core
+
+import (
+	"context"
+
+	"gitea.maximumdirect.net/ejr/weatherfeeder/model"
+)
+
+// Repository defines outbound data access used by weatherapi use cases.
+type Repository interface {
+	LatestObservation(ctx context.Context) (*model.WeatherObservation, error)
+	LatestHourlyForecast(ctx context.Context) (*model.WeatherForecastRun, error)
+	LatestActiveAlerts(ctx context.Context) (*model.WeatherAlertRun, error)
+}
+
+// Service provides weather read use-cases.
+type Service struct {
+	repo Repository
+}
+
+func NewService(repo Repository) *Service {
+	return &Service{repo: repo}
+}
+
+func (s *Service) LatestObservation(ctx context.Context) (*model.WeatherObservation, error) {
+	return s.repo.LatestObservation(ctx)
+}
+
+func (s *Service) LatestHourlyForecast(ctx context.Context) (*model.WeatherForecastRun, error) {
+	return s.repo.LatestHourlyForecast(ctx)
+}
+
+func (s *Service) LatestActiveAlerts(ctx context.Context) (*model.WeatherAlertRun, error) {
+	return s.repo.LatestActiveAlerts(ctx)
+}