"""Landmark detection endpoints."""
from flask import Blueprint, jsonify, request
from .. import db, forwarder

bp = Blueprint("landmarks", __name__, url_prefix="/api/1/landmarks")


@bp.route("/last/<int:n>", methods=["GET"])
def get_last(n):
    """Get last N detections."""
    n = min(n, 1000)  # Cap at 1000
    landmarks = db.get_last_landmarks(n)
    return jsonify(landmarks)


@bp.route("", methods=["POST"])
def ingest():
    """Ingest a new detection from camera pipeline."""
    data = request.get_json()
    if not data or "class_label" not in data:
        return jsonify({"error": "Missing class_label"}), 400
    
    db.insert_landmark(data)
    forwarder.forward_detection(data)
    
    return jsonify({"status": "ok"})