// Package health provides the service readiness use case.
package health

import "context"

type Database interface {
	Ping(context.Context) error
}

type Status struct {
	Serving       bool
	DatabaseReady bool
}

type Service struct {
	database Database
}

func NewService(database Database) *Service {
	return &Service{database: database}
}

func (s *Service) Check(ctx context.Context) Status {
	status := Status{}
	if s.database != nil {
		status.DatabaseReady = s.database.Ping(ctx) == nil
	}
	status.Serving = status.DatabaseReady
	return status
}