OTR Laser Communication API Module

from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from datetime import datetime
import uuid

app = FastAPI(title=”OTR Laser Communication API”)

class LaserCIDPayload(BaseModel):
device_mac: str
validator_id: str
cid: str
mode: str # “line_of_sight”, “fiber”, “diode_short_range”
timestamp: datetime = datetime.utcnow()

class LaserStatus(BaseModel):
device_mac: str
validator_id: str
relay_id: str
mode: str
confirmed: bool
spectrum_log_cid: str
tx_signature: str

@app.post(“/laser/relay”)
def relay_cid(payload: LaserCIDPayload):
# Placeholder: Validate device_mac and validator_id against local registry
if not payload.device_mac or not payload.validator_id:
raise HTTPException(status_code=400, detail=”Missing device MAC or validator ID”)

# Log event and generate proof (simulate real-world integration)
tx_id = str(uuid.uuid4())
print(f"Laser TX: {payload.cid} from {payload.device_mac} via {payload.mode} at {payload.timestamp}")

# Simulated response with validation metadata
return LaserStatus(
    device_mac=payload.device_mac,
    validator_id=payload.validator_id,
    relay_id=tx_id,
    mode=payload.mode,
    confirmed=True,
    spectrum_log_cid="bafy...spectrum_log_example",
    tx_signature="SIG_xyz123abc456"
)

Endpoint: POST /laser/relay

Modes supported: "line_of_sight", "fiber", "diode_short_range"

Returns: Confirmation of CID relay, timestamp, and spectrum log CID

Enable secure, high-speed CID relays using line-of-sight lasers, fiber optics, or short-range photonic links. Fully offline-capable and MAC-authenticated.

POST /laser/relay
{
  "device_mac": "AA:BB:CC:DD:EE:FF",
  "validator_id": "relay1",
  "cid": "bafy...xyz",
  "mode": "line_of_sight",
  "timestamp": "2025-06-04T12:00:00Z"
}