package config

import (

"fmt"

"os"

)

type Info struct {

// Port is the local port on which the application will run

Port string

// FQDN (for Fully-Qualified Domain Name) is the internet facing host address

// where application will live (e.g. https://example.com)

FQDN string

// ClientID comes from your configured GitHub app

ClientID string

// ClientSecret comes from your configured GitHub app

ClientSecret string

}

const (

portEnv = "PORT"

clientIdEnv = "CLIENT_ID"

clientSecretEnv = "CLIENT_SECRET"

fqdnEnv = "FQDN"

)

func New() (*Info, error) {

port := os.Getenv(portEnv)

if port == "" {

return nil, fmt.Errorf("%s environment variable required", portEnv)

}

fqdn := os.Getenv(fqdnEnv)

if fqdn == "" {

return nil, fmt.Errorf("%s environment variable required", fqdnEnv)

}

clientID := os.Getenv(clientIdEnv)

if clientID == "" {

return nil, fmt.Errorf("%s environment variable required", clientIdEnv)

}

clientSecret := os.Getenv(clientSecretEnv)

if clientSecret == "" {

return nil, fmt.Errorf("%s environment variable required", clientSecretEnv)

}

return &Info{

Port: port,

FQDN: fqdn,

ClientID: clientID,

ClientSecret: clientSecret,

}, nil

}