package tpl

import (
	"reflect"
)

type Properties struct { // only string properties with a "token" tag, please
	Code               string `token:"code"`
	Message            string `token:"message"`
	Description        string `token:"description"`
	OriginalURI        string `token:"original_uri"`
	Namespace          string `token:"namespace"`
	IngressName        string `token:"ingress_name"`
	ServiceName        string `token:"service_name"`
	ServicePort        string `token:"service_port"`
	RequestID          string `token:"request_id"`
	ForwardedFor       string `token:"forwarded_for"`
	Host               string `token:"host"`
	L10nDisabled       bool
	ShowRequestDetails bool
}

// Replaces return a map with strings for the replacing, where the map key is a token.
func (p *Properties) Replaces() map[string]string {
	var replaces = make(map[string]string, reflect.ValueOf(*p).NumField())

	for i, v := 0, reflect.ValueOf(*p); i < v.NumField(); i++ {
		if keyword, tagExists := v.Type().Field(i).Tag.Lookup("token"); tagExists {
			if sv, isString := v.Field(i).Interface().(string); isString && len(sv) > 0 {
				replaces[keyword] = sv
			} else {
				replaces[keyword] = ""
			}
		}
	}

	return replaces
}

func (p *Properties) Hash() (Hash, error) { return HashStruct(p) }