package test

import (
	"fmt"
)

// Fixtures is a struct that knows how to start all your test fixtures.
//
// Right now, that means Etcd and your APIServer. This is likely to increase in future.
type Fixtures struct {
	Etcd      FixtureProcess
	APIServer FixtureProcess
}

// EtcdStartStopper knows how to start an Etcd. One good implementation is Etcd.
type EtcdStartStopper interface {
	Start() error
	Stop()
}

//go:generate counterfeiter . EtcdStartStopper

// APIServerStartStopper knows how to start an APIServer. One good implementation is APIServer.
type APIServerStartStopper interface {
	Start() error
	Stop()
}

//go:generate counterfeiter . APIServerStartStopper

// FixtureProcess knows how to start and stop a Fixture processes.
// This interface is potentially going to be expanded to e.g. allow access to the processes StdOut/StdErr
// and other internals.
type FixtureProcess interface {
	Start() error
	Stop()
}

//go:generate counterfeiter . FixtureProcess

// NewFixtures will give you a Fixtures struct that's properly wired together.
func NewFixtures(pathToEtcd, pathToAPIServer string) *Fixtures {
	etcdURL := "http://127.0.0.1:2379"
	return &Fixtures{
		Etcd: &Etcd{
			Path:    pathToEtcd,
			EtcdURL: etcdURL,
		},
		APIServer: &APIServer{
			Path:    pathToAPIServer,
			EtcdURL: etcdURL,
		},
	}
}

// Start will start all your fixtures. To stop them, call Stop().
func (f *Fixtures) Start() error {
	if err := f.Etcd.Start(); err != nil {
		return fmt.Errorf("Error starting etcd: %s", err)
	}
	if err := f.APIServer.Start(); err != nil {
		return fmt.Errorf("Error starting apiserver: %s", err)
	}
	return nil
}

// Stop will stop all your fixtures, and clean up their data.
func (f *Fixtures) Stop() error {
	f.APIServer.Stop()
	f.Etcd.Stop()
	return nil
}