package lib

import (
	stdlib_context "context"
	"sync"
)

type Config interface {
	Name() string
	Starter() StartProc
	Children() []Config
	Add(Config)
}

type Message interface{}

type Services map[string]Context

type ContextState interface{}

type Context interface {
	stdlib_context.Context
	Config() Config
	Parent() Context
	Services() Services
	ChildContext(Config) Context
	State() ContextState
	WithState(ContextState) Context
	Mailbox() chan Message
	WaitGroup() *sync.WaitGroup
	Stop()
}

type Proc = func(Context)
type StartProc = Proc

// async Runners

func RunCtx(ctx Context, fct Proc) {
	ctx.WaitGroup().Add(1)
	go func() {
		defer ctx.WaitGroup().Done()
		fct(ctx)
	}()
}