package main

import (
	"strings"

	"github.com/spf13/viper"
)

func ReadConfig() (*viper.Viper, error) {
	defaults := map[string]any{
		"name":    "COOPGO Multimodal Routing",
		"dev_env": false,
		"modes": map[string]any{
			"carpool": map[string]any{
				"enabled":   true,
				"operators": []map[string]any{},
			},
		},
		"services": map[string]any{
			"grpc": map[string]any{
				"enable": true,
				"port":   8080,
			},
			"http": map[string]any{
				"enable": false,
				"port":   80,
			},
		},
	}

	v := viper.New()
	for key, value := range defaults {
		v.SetDefault(key, value)
	}
	v.SetConfigName("config")
	v.AddConfigPath(".")
	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
	v.AutomaticEnv()
	err := v.ReadInConfig()
	return v, err
}