package webapi

import (
	"encoding/json"
	"log"

	"github.com/spf13/viper"
)

type config struct {
	ListenAddress string
	AllowHello    bool
}

var C config

func init() {
	SetConfigDefaults()
}

func SetConfigDefaults() {
	viper.SetDefault("WebAPI.ListenAddress", ":8080")
	viper.SetDefault("WebAPI.AllowHello", false)
}

func LoadConfig() {
	// Does not work with partially overrides, only GetXXX does resolve the subkeys correctly
	// https://github.com/spf13/viper/issues/798
	// https://github.com/spf13/viper/issues/309
	// viper.UnmarshalKey("WebAPI", &C)
	C.ListenAddress = viper.GetString("WebAPI.ListenAddress")
	C.AllowHello = viper.GetBool("WebAPI.AllowHello")
}

func (obj *config) PrettyPrint() string {
	s, err := json.MarshalIndent(obj, "", " ")
	if err != nil {
		log.Fatalf("Failed to pretty print WebAPI Config via JSON: %v", err)
	}
	return string(s)
}