package main

import (
	"log/slog"

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

type TestConfig struct {
	TestField  bool `mapstructure:"test_field"`
	TestField2 bool `mapstructure:"test_field2"`
}

func main() {
	// Define the flag using pflag (recommended with Viper)
	pflag.Bool("test-flag", false, "Test flag description")

	// Parse the flags
	pflag.Parse()

	conf := viper.New()

	// Bind pflag to Viper
	_ = conf.BindPFlag("test.test_field", pflag.Lookup("test-flag"))

	conf.SetDefault("test.test_field", false)
	conf.Set("test.test_field2", true)

	subConf := conf.Sub("test")
	if subConf == nil {
		slog.Error("No sub conf")
		return
	}

	slog.Info("ALL Keys", "keys", subConf.AllKeys())

	var config TestConfig
	if err := subConf.Unmarshal(&config); err != nil {
		slog.Error("Error during unmarshal", "err", err)
	}

	slog.Info("TestField (Direct)", "val", conf.GetBool("test.test_field"))
	slog.Info("TestField", "val", config.TestField)

	slog.Info("TestField2 via Set (Direct)", "val", conf.GetBool("test.test_field2"))
	slog.Info("TestField2 via Set", "val", config.TestField2)
}