/*
Copyright © 2019 eater

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd

import (
  "fmt"
  "os"
  "github.com/spf13/cobra"

  homedir "github.com/mitchellh/go-homedir"
  "github.com/spf13/viper"

)


var cfgFile string

// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
  Use:   "servitor",
  Short: "A workflow engine, ready to serve",
}

func Execute() {
  if err := rootCmd.Execute(); err != nil {
    fmt.Println(err)
    os.Exit(1)
  }
}

func init() {
  cobra.OnInitialize(initConfig)
  rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.servitor.yaml)")
}


func initConfig() {
  if cfgFile != "" {
    viper.SetConfigFile(cfgFile)
  } else if home, err := homedir.Dir(); err != nil {
    viper.AddConfigPath(home)
    viper.SetConfigName(".servitor")
  }

  viper.AutomaticEnv() // read in environment variables that match
  // If a config file is found, read it in.
  if err := viper.ReadInConfig(); err == nil {
    fmt.Println("Using config file:", viper.ConfigFileUsed())
  }
}