package pkg

import (
	"regexp"

	"github.rackspace.com/gorax/tools/util"
)

type (
	NAT struct {
		Name            string `json:"name"`
		TranslationAddr string `json:"translation_address"`
		OriginatingAddr string `json:"originating_address"`
		TrafficGroup    string `json:"traffic_group"`
	}
)

func ParseNATs(s string) ([]*NAT, error) {
	var n []*NAT
	var TRAFFICGROUPRE = regexp.MustCompile(`traffic-group\s+(\S+)`)
	for _, r := range regexp.MustCompile(`(?i)ltm\s+nat\s+(\S+)\s+{((.|\n)*?)(\n}|$)`).FindAllStringSubmatch(s, -1) {
		n = append(n, &NAT{
			Name:            r[1],
			TranslationAddr: util.RegexpString(regexp.MustCompile(`(?i)translation-address\s+(\S+)`), r[2]),
			OriginatingAddr: util.RegexpString(regexp.MustCompile(`(?i)originating-address\s+(\S+)`), r[2]),
			TrafficGroup:    util.RegexpString(TRAFFICGROUPRE, r[2]),
		})
	}
	return n, nil
}