"""Device endpoints."""
from flask import request
from . import bp
from ..models import Device, Sighting
from ..extensions import db
from ..services.device_service import enrich_device


@bp.route('/devices')
def list_devices():
    """List all devices."""
    device_type = request.args.get('type')  # 'ble' or 'wifi'
    limit = min(int(request.args.get('limit', 100)), 1000)
    offset = int(request.args.get('offset', 0))

    query = db.select(Device).order_by(Device.last_seen.desc())
    if device_type:
        query = query.where(Device.device_type == device_type)
    query = query.limit(limit).offset(offset)

    devices = db.session.scalars(query).all()
    return {'devices': [enrich_device(d) for d in devices], 'limit': limit, 'offset': offset}


@bp.route('/devices/<mac>')
def get_device(mac):
    """Get device by MAC."""
    mac = mac.lower()
    device = db.session.scalar(db.select(Device).where(Device.mac == mac))
    if not device:
        return {'error': 'Device not found'}, 404

    # Include recent sightings
    sightings = db.session.scalars(
        db.select(Sighting)
        .where(Sighting.device_id == device.id)
        .order_by(Sighting.timestamp.desc())
        .limit(20)
    ).all()

    result = enrich_device(device)
    result['sightings'] = [s.to_dict() for s in sightings]
    return result