// Package app provides application lifecycle primitives.
package app

import (
	"context"
	"os"
	"os/signal"
	"syscall"
)

// NewContext returns a context for the whole application lifecycle.
//
// The context is cancelled when the parent is cancelled or when the process
// receives an interrupt or a termination signal. Call the returned function
// during shutdown to unregister signal notifications and release resources.
func NewContext(parent context.Context) (context.Context, context.CancelFunc) {
	return signal.NotifyContext(parent, os.Interrupt, syscall.SIGTERM)
}