/*
   GoToSocial
   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero 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 Affero General Public License for more details.

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

package config

import (
	"github.com/spf13/viper"
)

// ReadFromFile checks if there's already a path to the config file set in viper.
// If there is, it will attempt to read the config file into viper.
func ReadFromFile() error {
	// config file stuff
	// check if we have a config path set (either by cli arg or env var)
	if configPath := viper.GetString(Keys.ConfigPath); configPath != "" {
		viper.SetConfigFile(configPath)
		if err := viper.ReadInConfig(); err != nil {
			return err
		}
	}

	return nil
}