#!/usr/bin/env bash
# TWS + IBC Installation auf VM 105 finance
# Ausführen als tws-User oder ubuntu-User mit sudo
# Voraussetzung: setup-tws.sh wurde erfolgreich ausgeführt
set -euo pipefail

TWS_USER=tws
TWS_HOME=/home/tws

echo "=== TWS Installer herunterladen ==="
# IBKR bietet stable und latest an; stable bevorzugt für Produktion
TWS_URL="https://download2.interactivebrokers.com/installers/tws/stable-standalone/tws-stable-standalone-linux-x64.sh"
INSTALLER="$TWS_HOME/tws-installer.sh"

sudo -u $TWS_USER wget -q --show-progress -O "$INSTALLER" "$TWS_URL"
sudo chmod +x "$INSTALLER"

echo "=== TWS Installation starten (GUI via DISPLAY :1 / noVNC) ==="
echo "Öffne noVNC im Browser und klicke den Installer durch:"
echo "  http://$(hostname -I | awk '{print $1}'):6080/vnc.html"
echo ""
echo "Installer wird jetzt gestartet..."
sudo -u $TWS_USER DISPLAY=:1 "$INSTALLER" &
echo "Installer PID: $!"
echo ""
echo "Nach der Installation bitte dieses Script weiter ausführen."
echo "Drücke Enter wenn TWS installiert wurde..."
read -r

echo "=== IBC herunterladen ==="
IBC_DIR="$TWS_HOME/ibc"
sudo -u $TWS_USER mkdir -p "$IBC_DIR"

# Aktuelle Version von GitHub ermitteln
IBC_LATEST=$(curl -s https://api.github.com/repos/IbcAlpha/IBC/releases/latest | grep '"tag_name"' | cut -d'"' -f4)
echo "IBC Version: $IBC_LATEST"

IBC_URL="https://github.com/IbcAlpha/IBC/releases/download/${IBC_LATEST}/IBCLinux-${IBC_LATEST}.zip"
sudo -u $TWS_USER wget -q --show-progress -O "$IBC_DIR/ibc.zip" "$IBC_URL"
sudo -u $TWS_USER unzip -q -o "$IBC_DIR/ibc.zip" -d "$IBC_DIR/"
sudo chmod +x "$IBC_DIR"/*.sh "$IBC_DIR/scripts"/*.sh 2>/dev/null || true

echo "=== IBC Konfiguration erstellen ==="
# TWS-Pfad ermitteln (Standard-Installpfad)
TWS_PATH=$(find "$TWS_HOME" -name "jts.ini" 2>/dev/null | head -1 | xargs dirname 2>/dev/null || echo "$TWS_HOME/Jts")

sudo -u $TWS_USER tee "$IBC_DIR/config.ini" > /dev/null <<IBCCONF
# IBC Konfiguration für TWS
# Dokumentation: https://github.com/IbcAlpha/IBC/blob/master/userguide.md

[Logon]
IbLoginId=DEIN_IBKR_USERNAME
IbPassword=DEIN_IBKR_PASSWORT
TradingMode=live
# TradingMode=paper

[TWS]
ReadOnlyLogin=no
AcceptNonBrokerageAccountWarning=yes
AutoClosedown=no
ClosedownAt=

[API]
OverrideTwsApiPort=7497
AcceptIncomingConnectionAction=accept
AllowedAddresses=

[Logging]
LogToConsole=yes
IBCCONF

echo "=== IBC Start-Script anpassen ==="
# IBC nutzt twsstart.sh oder StartTWS.sh je nach Version
IBC_SCRIPT=$(find "$IBC_DIR" -name "twsstart.sh" -o -name "StartTWS.sh" 2>/dev/null | head -1)
if [ -z "$IBC_SCRIPT" ]; then
  echo "WARNUNG: IBC Start-Script nicht gefunden, manuell prüfen in $IBC_DIR"
else
  echo "IBC Start-Script: $IBC_SCRIPT"
fi

echo "=== tws-ibc Systemd-Service erstellen ==="
sudo tee /etc/systemd/system/tws-ibc.service > /dev/null <<TWSSERVICE
[Unit]
Description=TWS via IBC (Interactive Brokers Controller)
After=novnc.service openbox.service
Requires=xvfb.service

[Service]
User=$TWS_USER
Environment=DISPLAY=:1
Environment=HOME=$TWS_HOME
WorkingDirectory=$IBC_DIR
ExecStart=$IBC_DIR/twsstart.sh
Restart=on-failure
RestartSec=30
StandardOutput=append:/var/log/tws-ibc.log
StandardError=append:/var/log/tws-ibc.log

[Install]
WantedBy=multi-user.target
TWSSERVICE

sudo touch /var/log/tws-ibc.log
sudo chown $TWS_USER:$TWS_USER /var/log/tws-ibc.log

sudo systemctl daemon-reload

echo ""
echo "=== Installation abgeschlossen ==="
echo ""
echo "WICHTIG: Vor dem Start von tws-ibc.service:"
echo "  1. IBC-Credentials eintragen:"
echo "     sudo nano $IBC_DIR/config.ini"
echo "  2. IBC-Start-Script prüfen:"
echo "     ls $IBC_DIR/"
echo "  3. Service aktivieren:"
echo "     sudo systemctl enable --now tws-ibc"
echo ""
echo "TWS manuell testen (ohne IBC):"
echo "  sudo -u tws DISPLAY=:1 $TWS_PATH/tws"
echo ""
echo "Logs:"
echo "  tail -f /var/log/tws-ibc.log"
echo "  journalctl -u tws-ibc -f"