package commands

import (
	"strings"

	"github.com/spf13/pflag"
	"github.com/spf13/viper"
)

func LoadConfig[T any](flags *pflag.FlagSet) (*T, error) {
	var cfg T

	vipr := viper.New()
	vipr.SetEnvPrefix("nitter")
	vipr.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
	vipr.AutomaticEnv()

	if err := vipr.BindPFlags(flags); err != nil {
		return nil, err
	}

	if err := vipr.Unmarshal(&cfg); err != nil {
		return nil, err
	}

	return &cfg, nil
}