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package scheduled
import (
"database/sql"
"encoding/json"
"log"
"time"
"github.com/go-co-op/gocron"
"penguins.lan/adapters/arp"
"penguins.lan/adapters/netscan"
"penguins.lan/api/minecraft"
"penguins.lan/args"
"penguins.lan/database"
)
const sweepTimeout = 1 * time.Second
func StartScheduler(argv *args.Arguments, dbConn *sql.DB) {
scheduler := gocron.NewScheduler(time.Local)
scheduler.Every(1).Seconds().Do(func() {
if err := refreshArp(dbConn, arp.SystemProvider{}); err != nil {
log.Println("arp refresh failed:", err)
}
})
if argv.LanSubnet != "" {
go sweep(argv.LanSubnet)
scheduler.Every(30).Seconds().Do(func() { sweep(argv.LanSubnet) })
}
if argv.RconAddress != "" {
go refreshMinecraft(dbConn, argv.RconAddress, argv.RconPassword)
scheduler.Every(10).Seconds().Do(func() {
refreshMinecraft(dbConn, argv.RconAddress, argv.RconPassword)
})
}
scheduler.Every(500).Seconds().Do(func() {
if err := database.DeleteExpiredSessions(dbConn); err != nil {
log.Println("session cleanup failed:", err)
}
})
scheduler.StartAsync()
}
func refreshArp(dbConn *sql.DB, provider arp.TableProvider) error {
table, err := provider.Fetch()
if err != nil {
return err
}
ipToMac := make(map[string]string, len(table.AddrToMac))
for ip, mac := range table.AddrToMac {
ipToMac[ip.Format()] = mac.Format()
}
return database.RefreshConnections(dbConn, ipToMac)
}
func sweep(subnet string) {
if err := netscan.Sweep(subnet, sweepTimeout); err != nil {
log.Println("lan sweep failed:", err)
}
}
func refreshMinecraft(dbConn *sql.DB, address, password string) {
status, err := minecraft.Query(address, password)
if err != nil {
log.Println("minecraft query failed:", err)
status = minecraft.Status{Online: false}
}
blob, err := json.Marshal(status)
if err != nil {
log.Println("minecraft marshal failed:", err)
return
}
if err := database.SaveMinecraftStatus(dbConn, string(blob)); err != nil {
log.Println("minecraft save failed:", err)
}
}
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