[Unit]
Description=Data Refresh - scheduled sync from BigQuery to local Parquet
After=network-online.target
Wants=network-online.target

[Service]
Type=oneshot
User=root
Group=data-ops
WorkingDirectory=/opt/data-analyst/repo
ExecStart=/opt/data-analyst/.venv/bin/python3 -m src.data_sync --scheduled

# Environment
EnvironmentFile=/opt/data-analyst/.env
Environment=PYTHONPATH=/opt/data-analyst/repo
Environment=CONFIG_DIR=/opt/data-analyst/instance/config

# Write access to data directory, logs, and /tmp (for staging + lock file)
ProtectSystem=strict
ReadWritePaths=/data /opt/data-analyst/logs /tmp
PrivateTmp=false

# Sync can take a while for large tables
TimeoutStartSec=3600

# Prevent overlapping runs
ExecCondition=/usr/bin/test ! -f /tmp/data-refresh.lock
ExecStartPre=/usr/bin/touch /tmp/data-refresh.lock
ExecStartPost=/usr/bin/rm -f /tmp/data-refresh.lock
ExecStopPost=/usr/bin/rm -f /tmp/data-refresh.lock

[Install]
WantedBy=multi-user.target