#!/bin/bash
# Jellyfin postinst script - runs after package installation

set -e

# Create jellyfin user if it doesn't exist
if ! getent passwd jellyfin > /dev/null; then
    useradd --system \
        --home /var/lib/jellyfin \
        --shell /bin/false \
        --comment "Jellyfin Media Server" \
        jellyfin
fi

# Create necessary directories
mkdir -p /var/lib/jellyfin
mkdir -p /var/log/jellyfin
mkdir -p /var/cache/jellyfin
mkdir -p /etc/jellyfin

# Set proper ownership and permissions
chown -R jellyfin:jellyfin /var/lib/jellyfin
chown -R jellyfin:jellyfin /var/log/jellyfin
chown -R jellyfin:jellyfin /var/cache/jellyfin
chown -R jellyfin:jellyfin /etc/jellyfin
chmod 755 /var/lib/jellyfin
chmod 755 /var/log/jellyfin
chmod 755 /var/cache/jellyfin
chmod 755 /etc/jellyfin

# Set permissions on the application directory
chown -R jellyfin:jellyfin /opt/jellyfin
chmod -R 755 /opt/jellyfin

# Create systemd service file if it doesn't exist
if [[ ! -f /etc/systemd/system/jellyfin.service ]]; then
    cat > /etc/systemd/system/jellyfin.service << 'EOF'
[Unit]
Description=Jellyfin Media Server
After=network.target

[Service]
Type=simple
User=jellyfin
Group=jellyfin
WorkingDirectory=/var/lib/jellyfin
ExecStart=/opt/jellyfin/jellyfin --webdir=/opt/jellyfin/wwwroot --logdir=/var/log/jellyfin --datadir=/var/lib/jellyfin --cachedir=/var/cache/jellyfin
Restart=on-failure
RestartSec=10
StandardOutput=journal
StandardError=journal
Environment="PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

[Install]
WantedBy=multi-user.target
EOF
fi

# Reload systemd daemon
systemctl daemon-reload

# Enable and start the service
if [[ -f /etc/systemd/system/jellyfin.service ]]; then
    systemctl enable jellyfin.service
    systemctl restart jellyfin.service || true
fi

# Display post-installation message
echo ""
echo "=========================================="
echo "Jellyfin Media Server installed!"
echo "=========================================="
echo ""
echo "Service status: systemctl status jellyfin"
echo "View logs:      journalctl -u jellyfin -f"
echo "Configuration: /etc/jellyfin/"
echo "Data:          /var/lib/jellyfin/"
echo "Logs:          /var/log/jellyfin/"
echo ""
echo "Access Jellyfin at: http://localhost:8096"
echo ""

exit 0