[Unit]
Description=WalnutPi H618 Matrix Screen Controller
After=NetworkManager.service
Wants=NetworkManager.service

[Service]
Type=simple
WorkingDirectory=/opt/matrix-screen-controller
Environment=MATRIX_DRIVER=auto
Environment=MATRIX_DATA_DIR=/var/lib/matrix-screen-controller
Environment=MATRIX_RUNTIME_DIR=/run/matrix-screen-controller
Environment=PYTHONDONTWRITEBYTECODE=1
Environment=MATRIX_MEDIA_WORKER_MODE=systemd
StateDirectory=matrix-screen-controller
StateDirectoryMode=0711
RuntimeDirectory=matrix-screen-controller
RuntimeDirectoryMode=0750
RuntimeDirectoryPreserve=yes
CPUAffinity=0 1 2
LimitRTPRIO=50
LimitMEMLOCK=infinity
LimitRTTIME=infinity
ExecStartPre=/bin/sh -c 'cat /proc/sys/kernel/sched_rt_runtime_us > /run/matrix-screen-controller/sched_rt_runtime_us.original && printf "%%s\n" -1 > /proc/sys/kernel/sched_rt_runtime_us'
ExecStartPre=/opt/matrix-screen-controller/.venv/bin/python /opt/matrix-screen-controller/scripts/dedicated_host.py check --service
ExecStartPre=/opt/matrix-screen-controller/app/display/native/hub75_safeoff
ExecStart=/opt/matrix-screen-controller/.venv/bin/python -m uvicorn app.main:app --host 0.0.0.0 --port 8080
ExecStopPost=/opt/matrix-screen-controller/app/display/native/hub75_safeoff
ExecStopPost=/opt/matrix-screen-controller/.venv/bin/python -m app.system.performance restore --runtime-root /run/matrix-screen-controller
ExecStopPost=/bin/sh -c 'if test -f /run/matrix-screen-controller/sched_rt_runtime_us.original; then cat /run/matrix-screen-controller/sched_rt_runtime_us.original > /proc/sys/kernel/sched_rt_runtime_us; rm -f /run/matrix-screen-controller/sched_rt_runtime_us.original; fi'
Restart=on-failure
RestartSec=3

[Install]
WantedBy=multi-user.target