// Copyright 2024 The Inspektor Gadget authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package config

import (
	"os"
	"path/filepath"
	"strings"

	"github.com/spf13/viper"
)

const (
	OperatorKey = "operator"
	RuntimeKey  = "runtime"
)

const (
	configName      = "config"
	configType      = "yaml"
	configEnvPrefix = "INSPEKTOR_GADGET"
)

var Config *viper.Viper

func init() {
	h, _ := os.UserHomeDir()
	Config = NewWithPath(filepath.Join(h, ".ig", configName+"."+configType))
}

func NewWithPath(path string) *viper.Viper {
	conf := viper.New()

	conf.SetConfigName(configName)
	conf.SetConfigType(configType)
	conf.SetConfigFile(path)

	conf.SetEnvPrefix(configEnvPrefix)
	conf.SetEnvKeyReplacer(strings.NewReplacer("-", "_", ".", "_"))

	return conf
}
