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package store
import (
"strings"
"time"
"github.com/LMBishop/gunnel/pkg/wireguard"
"github.com/tjarratt/babble"
)
type ForwardingRule struct {
Slug string
Peer *wireguard.Peer
Port string
LastUsed time.Time
}
type Service interface {
GetRuleBySlug(slug string) *ForwardingRule
NewForwardingRule(slug string, peer *wireguard.Peer, port string) *ForwardingRule
RemoveForwardingRule(slug string)
GetUnusedSlug() string
GetUnusedRulesSince(since time.Time) []*ForwardingRule
}
type service struct {
forwardingRules map[string]*ForwardingRule
}
func NewService() Service {
return &service{
forwardingRules: make(map[string]*ForwardingRule),
}
}
func (s *service) GetRuleBySlug(slug string) *ForwardingRule {
return s.forwardingRules[slug]
}
func (s *service) NewForwardingRule(slug string, peer *wireguard.Peer, port string) *ForwardingRule {
if s.forwardingRules[slug] != nil {
return nil
}
rule := &ForwardingRule{
Slug: slug,
Peer: peer,
Port: port,
}
s.forwardingRules[slug] = rule
return rule
}
func (s *service) GetUnusedSlug() string {
b := babble.NewBabbler()
b.Count = 3
b.Separator = "-"
for i := 0; i < 10; i++ {
slug := strings.Replace(strings.ToLower(b.Babble()), "'", "", -1)
if s.forwardingRules[slug] == nil {
return slug
}
}
return ""
}
func (s *service) GetUnusedRulesSince(since time.Time) []*ForwardingRule {
var rules []*ForwardingRule
for _, rule := range s.forwardingRules {
if rule.LastUsed.Before(since) {
rules = append(rules, rule)
}
}
return rules
}
func (s *service) RemoveForwardingRule(slug string) {
delete(s.forwardingRules, slug)
}
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