Files
backend/internal/core/server_poller.go

91 lines
2.1 KiB
Go

package core
import (
"context"
"encoding/json"
"log/slog"
"time"
"gitea.mrixs.me/minecraft-platform/backend/internal/database"
"gitea.mrixs.me/minecraft-platform/backend/internal/models"
"github.com/Tnze/go-mc/bot"
"github.com/Tnze/go-mc/chat"
)
type pingResponse struct {
Description chat.Message `json:"description"`
Players struct {
Max int `json:"max"`
Online int `json:"online"`
} `json:"players"`
Version struct {
Name string `json:"name"`
Protocol int `json:"protocol"`
} `json:"version"`
}
type ServerPoller struct {
Repo *database.ServerRepository
}
func (p *ServerPoller) Start(ctx context.Context) {
slog.Info("Starting server poller...")
ticker := time.NewTicker(60 * time.Second)
defer ticker.Stop()
p.pollAllServers(ctx)
for {
select {
case <-ticker.C:
p.pollAllServers(ctx)
case <-ctx.Done():
slog.Info("Stopping server poller...")
return
}
}
}
func (p *ServerPoller) pollAllServers(ctx context.Context) {
servers, err := p.Repo.GetAllEnabledServers(ctx)
if err != nil {
slog.Error("Poller: failed to get servers", "error", err)
return
}
for _, s := range servers {
go p.pollServer(ctx, s)
}
}
func (p *ServerPoller) pollServer(ctx context.Context, server *models.GameServer) {
resp, delay, err := bot.PingAndList(server.Address)
if err != nil {
slog.Warn("Poller: failed to ping server", "server", server.Name, "address", server.Address, "error", err)
return
}
var status pingResponse
if err := json.Unmarshal(resp, &status); err != nil {
slog.Error("Poller: failed to unmarshal status", "server", server.Name, "error", err)
return
}
motdText := status.Description.String()
updateData := &models.ServerStatus{
StatusJSON: string(resp),
Motd: motdText,
PlayerCount: status.Players.Online,
MaxPlayers: status.Players.Max,
VersionName: status.Version.Name,
Ping: delay.Milliseconds(),
}
if err := p.Repo.UpdateServerStatus(ctx, server.ID, updateData); err != nil {
slog.Error("Poller: failed to update status", "server", server.Name, "error", err)
} else {
slog.Info("Poller: successfully polled server", "server", server.Name)
}
}