[Unit]
Description=Lakehouse Langfuse → observer bridge — forwards LLM trace metadata to :3800 so KB learns from cost/latency/provider deltas
Documentation=file:///home/profit/lakehouse/mcp-server/langfuse_bridge.ts
After=network.target
# No hard dependency on either Langfuse or observer — if either is down,
# the bridge retries on the next tick without crashing. That's the
# whole point of the cursor state file.

[Service]
Type=simple
WorkingDirectory=/home/profit/lakehouse
ExecStart=/home/profit/.bun/bin/bun run /home/profit/lakehouse/mcp-server/langfuse_bridge.ts
Restart=on-failure
RestartSec=30
# Credentials resolved from env. Matches how
# crates/gateway/src/v1/langfuse_trace.rs reads them so both producer
# (gateway emitter) and consumer (this bridge) share the same config.
EnvironmentFile=-/etc/lakehouse/langfuse.env
Environment=LANGFUSE_URL=http://localhost:3001
Environment=OBSERVER_URL=http://localhost:3800
Environment=LANGFUSE_POLL_MS=30000
Environment=LANGFUSE_BATCH_LIMIT=50
Environment=LANGFUSE_STATE_FILE=/var/lib/lakehouse-guard/langfuse_last_seen.json
KillSignal=SIGTERM
TimeoutStopSec=5

[Install]
WantedBy=multi-user.target