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registerdb.go
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registerdb.go
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package registerdb
import (
"fmt"
"os"
"sync"
"time"
"github.com/fsnotify/fsnotify"
"github.com/jbsmith7741/toml"
"github.com/xackery/talkeq/config"
"github.com/xackery/talkeq/tlog"
"golang.org/x/text/cases"
"golang.org/x/text/language"
)
var (
isStarted bool
db RegisterDatabase
mu sync.RWMutex
registrationDatabasePath string
)
// RegisterDatabase wraps registrations
type RegisterDatabase struct {
Registrations map[string]RegisterEntry `toml:"registrations"`
}
// RegisterEntry is a registration request entry
type RegisterEntry struct {
DiscordID string
DiscordName string
Status string
CharacterName string
ChannelID string
MessageID string
Timeout int64
Code string
}
// New instantiates a new registerdb
func New(config *config.API) error {
if isStarted {
return fmt.Errorf("already started")
}
tlog.Debugf("[registerdb] initializing")
registrationDatabasePath = config.APIRegister.RegistrationDatabasePath
db.Registrations = make(map[string]RegisterEntry)
_, err := os.Stat(registrationDatabasePath)
if os.IsNotExist(err) {
f, err := os.Create(registrationDatabasePath)
if err != nil {
return fmt.Errorf("create register database: %w", err)
}
defer f.Close()
enc := toml.NewEncoder(f)
err = enc.Encode(db.Registrations)
if err != nil {
return fmt.Errorf("create register database: %w", err)
}
err = save()
if err != nil {
return fmt.Errorf("save: %w", err)
}
}
err = reload()
if err != nil {
return fmt.Errorf("reload: %w", err)
}
watcher, err := fsnotify.NewWatcher()
if err != nil {
return fmt.Errorf("newWatcher: %w", err)
}
err = watcher.Add(registrationDatabasePath)
if err != nil {
return fmt.Errorf("watcher.Add: %w", err)
}
go loop(watcher)
return nil
}
func loop(watcher *fsnotify.Watcher) {
defer watcher.Close()
for {
select {
case event, ok := <-watcher.Events:
if !ok {
tlog.Warn("[registerdb] failed to read file")
return
}
if event.Op&fsnotify.Write != fsnotify.Write {
continue
}
continue
/*tlog.Debugf("registers database modified, reloading")
err := u.reloadDatabase()
if err != nil {
log.Warn().Err(err).Msg("failed to reload registers database")
}*/
case err, ok := <-watcher.Errors:
if !ok {
return
}
tlog.Warnf("[registerdb] failed: %s", err)
}
}
}
func reload() error {
mu.Lock()
defer mu.Unlock()
nre := make(map[string]RegisterEntry)
_, err := os.Stat(registrationDatabasePath)
if os.IsNotExist(err) {
return fmt.Errorf("%s does not exist: %w", registrationDatabasePath, err)
}
_, err = toml.DecodeFile(registrationDatabasePath, &nre)
if err != nil {
return fmt.Errorf("decode: %w", err)
}
db.Registrations = nre
return nil
}
func save() error {
f, err := os.Create(registrationDatabasePath)
if err != nil {
return fmt.Errorf("create: %w", err)
}
defer f.Close()
enc := toml.NewEncoder(f)
err = enc.Encode(db.Registrations)
if err != nil {
return fmt.Errorf("encode: %w", err)
}
return nil
}
// Set updates or adds an entry for a specified register id
func Set(discordID string, discordName string, characterName string, channelID string, messageID string, status string, timeout int64) {
mu.Lock()
defer mu.Unlock()
re := RegisterEntry{
DiscordID: discordID,
DiscordName: discordName,
CharacterName: cases.Title(language.AmericanEnglish).String(characterName),
Status: status,
MessageID: messageID,
ChannelID: channelID,
Timeout: timeout,
Code: "1234",
}
db.Registrations[discordID] = re
err := save()
if err != nil {
tlog.Warnf("[registerdb] save failed: %s", err)
}
}
// FindByCode returns an entry if code matches and is valid
func FindByCode(code string) (entry RegisterEntry, err error) {
mu.RLock()
defer mu.RUnlock()
var re RegisterEntry
for _, entry := range db.Registrations {
if entry.Code != code {
continue
}
if entry.Timeout < time.Now().Unix() {
return re, fmt.Errorf("code expired")
}
return entry, nil
}
return re, fmt.Errorf("invalid code")
}
// QueuedEntries returns a list of items that need to be relayed in EQ
func QueuedEntries() (entries []RegisterEntry, err error) {
mu.Lock()
defer mu.Unlock()
tlog.Debugf("[registerdb] registrations %d", len(db.Registrations))
for _, entry := range db.Registrations {
if entry.Timeout < time.Now().Unix() {
continue
}
if entry.Status != "In Queue" {
continue
}
entry.Status = "Waiting Reply"
db.Registrations[entry.DiscordID] = entry
entries = append(entries, entry)
}
return entries, nil
}
// Entry returns an existing entry
func Entry(discordID string) (RegisterEntry, error) {
mu.RLock()
defer mu.RUnlock()
re, ok := db.Registrations[discordID]
if !ok {
return re, fmt.Errorf("not found")
}
return re, nil
}
// CharacterName returns the name of a discord ID
func CharacterName(discordID string) string {
mu.RLock()
defer mu.RUnlock()
re, ok := db.Registrations[discordID]
if !ok {
return ""
}
if re.Status != "confirmed" {
return ""
}
return re.CharacterName
}
// Update sets a new timeout and status to a registration entry
func Update(discordID string, status string, timeout int64) error {
mu.Lock()
defer mu.Unlock()
re, ok := db.Registrations[discordID]
if !ok {
return fmt.Errorf("discordID %s not found", discordID)
}
re.Status = status
re.Timeout = timeout
if re.Status == "Confirmed" {
re.Code = ""
}
db.Registrations[discordID] = re
err := save()
if err != nil {
return fmt.Errorf("save: %w", err)
}
return nil
}