"""Run the redesign with disposable, synthetic data: python scripts/preview.py."""
import os
import sys
from datetime import datetime, timedelta
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
os.environ['FLASK_CONFIG'] = 'TestingConfig'

from app.config import TestingConfig

TestingConfig.SQLALCHEMY_DATABASE_URI = 'sqlite:///:memory:'
from app import create_app, db
from app.models import Profile, Reading, User
from werkzeug.security import generate_password_hash

app = create_app()
with app.app_context():
    db.create_all()
    user = User(username='demo', password_hash=generate_password_hash('preview-only'),
                profile=Profile(name='Alex Morgan', timezone='Australia/Sydney'))
    db.session.add(user)
    db.session.flush()
    now = datetime.utcnow().replace(minute=30, second=0, microsecond=0)
    db.session.add_all([Reading(user_id=user.id, timestamp=now - timedelta(hours=12 * i),
        systolic=122 + ((i * 7) % 19), diastolic=74 + ((i * 3) % 12), heart_rate=62 + i % 14)
        for i in range(120)])
    db.session.commit()

if __name__ == '__main__':
    print('Synthetic preview: http://127.0.0.1:5055 — demo / preview-only', flush=True)
    app.run(host='127.0.0.1', port=5055, use_reloader=False, debug=False)