[Unit]
Description=Foxhunt Trading Service (Monolithic)
Documentation=https://github.com/foxhunt/trading-system
After=network.target docker.service foxhunt-database-stack.service
Wants=network.target
Requires=foxhunt-database-stack.service

[Service]
Type=exec
User=foxhunt
Group=foxhunt
WorkingDirectory=/opt/foxhunt
Environment=RUST_LOG=info
Environment=FOXHUNT_CONFIG_PATH=/opt/foxhunt/config
Environment=DATABASE_URL=postgresql://foxhunt:foxhunt@localhost:5432/foxhunt
Environment=REDIS_URL=redis://localhost:6379
EnvironmentFile=-/opt/foxhunt/config/.env
ExecStart=/opt/foxhunt/bin/trading-service --config /opt/foxhunt/config/trading.toml
ExecReload=/bin/kill -HUP $MAINPID
Restart=always
RestartSec=10
StandardOutput=journal
StandardError=journal
SyslogIdentifier=foxhunt-trading

# Security settings
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=strict
ProtectHome=true
ReadWritePaths=/opt/foxhunt/logs /opt/foxhunt/data
CapabilityBoundingSet=CAP_NET_BIND_SERVICE

# Resource limits optimized for HFT trading
LimitNOFILE=65536
LimitNPROC=8192
MemoryHigh=8G
MemoryMax=16G
CPUQuota=800%

# Performance settings for low-latency trading
CPUAffinity=0-7
IOSchedulingClass=1
IOSchedulingPriority=2

# HFT optimizations
OOMScoreAdjust=-100
LimitMEMLOCK=infinity

[Install]
WantedBy=multi-user.target