<?php

class HauptManager extends IPSModule
{
    public function Create()
    {
        parent::Create();

        // Systemvariablen registrieren
        $this->RegisterPropertyInteger("Peakleistung", 0);
        $this->RegisterPropertyInteger("Ueberschussleistung", 0);
        $this->RegisterPropertyInteger("Netzbezug", 0); // Initialisierung mit 0
        $this->RegisterPropertyString("Verbraucher_Liste", "[]");
        $this->RegisterVariableString("Clients", "Clients", "", 0);

        // Timer registrieren
        $this->RegisterTimer("Timer_DistributeEnergy", 5000, "IPS_RequestAction(" .$this->InstanceID .', "DistributeEnergy", "");');
    }

    public function ApplyChanges()
    {
        parent::ApplyChanges();
        // Liste aller Verbraucher einlesen
        $Verbraucher_Liste = $this->ReadPropertyString("Verbraucher_Liste");

        // WebSocket-Server starten
        $this->StartWebSocketServer();

        // Initialisiere die Client-Liste im Formular
        $this->UpdateClientList();
    }

    public function RequestAction($Ident, $Value)
    {
        switch ($Ident) {
            case "DistributeEnergy":
                $this->DistributeEnergy();
                break;
            case "ApplyChanges":
                $this->ApplyChanges();
                break;
            default:
                throw new Exception("Invalid Ident");
        }
    }

    public function DistributeEnergy()
    {
        // Energieverteilung implementieren
    }

    private function StartWebSocketServer()
    {
        $server = new PHPWebSocket();
        $server->bind('message', function($clientID, $message, $messageLength, $binary) {
            $this->onMessage($clientID, $message);
        });
        $server->bind('open', function($clientID) {
            $this->AddClient($clientID);
        });
        $server->bind('close', function($clientID) {
            $this->RemoveClient($clientID);
        });
        $server->startServer('localhost', 8080);
    }

    public function AddClient($clientID)
    {
        $clients = json_decode($this->GetValue("Clients"), true);
        if ($clients === null) {
            $clients = [];
        }
        $clients[] = (string)$clientID;
        $this->SetValue("Clients", json_encode($clients));
        $this->UpdateClientList();
    }

    public function RemoveClient($clientID)
    {
        $clients = json_decode($this->GetValue("Clients"), true);
        if ($clients !== null) {
            $index = array_search((string)$clientID, $clients);
            if ($index !== false) {
                unset($clients[$index]);
                $clients = array_values($clients); // Reindizieren des Arrays
                $this->SetValue("Clients", json_encode($clients));
                $this->UpdateClientList();
            }
        }
    }

    private function UpdateClientList()
    {
        $clients = json_decode($this->GetValue("Clients"), true);
        if ($clients === null) {
            $clients = [];
        }
        $clientList = [];
        foreach ($clients as $client) {
            $clientList[] = ['Client' => $client];
        }
        $this->UpdateFormField('ClientList', 'values', json_encode($clientList));
    }

    public function onMessage($clientID, $message)
    {
        // Nachrichtenverarbeitung implementieren
    }
}
?>