import sys
import os
import io
import fitdecode
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

# Add backend to path
sys.path.append(os.path.join(os.getcwd(), 'backend'))

from src.models.activity import Activity
from src.utils.config import config

# Setup DB
engine = create_engine(config.DATABASE_URL)
Session = sessionmaker(bind=engine)
db = Session()

def inspect_activity(garmin_activity_id):
    activity = db.query(Activity).filter(Activity.garmin_activity_id == garmin_activity_id).first()
    if not activity:
        print("Activity not found")
        return

    content = activity.file_content
    print(f"File Size: {len(content)} bytes")
    
    with io.BytesIO(content) as f:
        with fitdecode.FitReader(f) as fit:
            for frame in fit:
                if frame.frame_type == fitdecode.FIT_FRAME_DATA and frame.name == 'record':
                    print("First Record Fields:")
                    for field in frame.fields:
                        print(f" - {field.name}: {field.value} (units: {field.units})")
                    break

if __name__ == "__main__":
    inspect_activity("21249259141")