package util

import (
	"log"
	"os"
	"path/filepath"

	"gitlab.hamburg.ccc.de/ccchh/spaceapid/config"
)

const (
	envBAUsername       = "BA_USERNAME"
	envBAPassword       = "BA_PASSWORD"
	envJSONTemplatePath = "JSON_TEMPLATE_PATH"
)

// GetConfiguration gets the spaceapid configuration from the respective environment variables
func GetConfiguration() (c config.Configuration) {
	var (
		success bool
		err     error
	)

	// HTTP BasicAuth username
	c.BAUsername, success = os.LookupEnv(envBAUsername)
	if !success || c.BAUsername == "" {
		log.Fatalln("Could not retrieve env variable", envBAUsername, "or variable is empty")
	}

	// HTTP BasicAuth password
	c.BAPassword, success = os.LookupEnv(envBAPassword)
	if !success || c.BAPassword == "" {
		log.Fatalln("Could not retrieve", envBAPassword, "env variable or variable is empty")
	}

	// JSON template path
	templatePath, success := os.LookupEnv(envJSONTemplatePath)
	if !success || templatePath == "" {
		log.Fatalln("Could not retrieve", envJSONTemplatePath, "env variable or variable is empty")
	}
	// Save as absolute path
	c.TemplatePath, err = filepath.Abs(templatePath)
	if err != nil {
		log.Fatalln("Failed converting", templatePath, "to absolute path:", err)
	}

	return
}