package pkg

import (
	"regexp"

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

var (
	LISTROUTE        = regexp.MustCompile(`(?i)(|n)et\s+route\s+(\S+)\s+{((.|\n)*?)(\n\w|$)`)
	LISTRTGATEWAYRE  = regexp.MustCompile(`(?i)gateway|gw\s+(\S+)`)
	NETWORKRE        = regexp.MustCompile(`(?i)network\s+(\S+)`)
	LISTRTBLACKHOLRE = regexp.MustCompile(`(?i)(blackhole)`)
)

type Route struct {
	Name        string  `json:"name"`
	Gateway     string  `json:"gateway"`
	Network     string  `json:"network"`
	Blackhole   bool    `json:"blackhole"`
	Description *string `json:"description"`
}

func ParseRoute(i []string) *Route {
	return &Route{
		Gateway:     util.RegexpString(LISTRTGATEWAYRE, i[3]),
		Network:     util.RegexpString(NETWORKRE, i[3]),
		Blackhole:   LISTRTBLACKHOLRE.MatchString(i[3]),
		Description: util.RegexpFindStringPtr(descriptionRegex, i[3]),
	}
}

// ParseRoutes : Parse list net route
func ParseRoutes(s string) ([]*Route, error) {
	var m []*Route
	for _, i := range LISTROUTE.FindAllStringSubmatch(s, -1) {
		l := ParseRoute(i)
		l.Name = i[2]
		m = append(m, l)
	}
	return m, nil
}