Format Phone Numbers to E.164 (Python)

import re

def main(input_data, hs_client, http_client, secret, console):
    raw = input_data[0] if isinstance(input_data, list) and input_data else (input_data or {})
    contact_id = raw.get('contact_id') or raw.get('contactId') or raw.get('objectId') or raw.get('hs_object_id')
    phone = raw.get('phone')
    mobilephone = raw.get('mobilephone')
    default_country_code = input_data.get('default_country_code', '+1')

    def format_e164(val, def_code):
        if not val:
            return None
        digits = re.sub(r'[^0-9+]', '', str(val))
        if not digits:
            return None
        if digits.startswith('+'):
            return digits
        if len(digits) == 10 and def_code == '+1':
            return f"+1{digits}"
        if len(digits) == 11 and digits.startswith('1'):
            return f"+{digits}"
        return f"{def_code}{digits}" if def_code.startswith('+') else f"+{def_code}{digits}"

    # Trigger-agnostic fallback: Scan recent contacts
    if not contact_id and not phone and not mobilephone:
        contacts = hs_client.crm.contacts.basic_api.get_page(limit=25, properties=['phone', 'mobilephone'])
        count = 0
        for c in (contacts.results or []):
            p = c.properties.get('phone')
            m = c.properties.get('mobilephone')
            pFmt = format_e164(p, default_country_code) if p else None
            mFmt = format_e164(m, default_country_code) if m else None
            upd = {}
            if pFmt and pFmt != p:
                upd['phone'] = pFmt
            if mFmt and mFmt != m:
                upd['mobilephone'] = mFmt
            if upd:
                hs_client.crm.contacts.basic_api.update(c.id, properties=upd)
                count += 1
        return {"updated": count > 0, "processedCount": count}

    if contact_id and (not phone or not mobilephone):
        contact = hs_client.crm.contacts.basic_api.get_by_id(contact_id, properties=['phone', 'mobilephone'])
        phone = phone or contact.properties.get('phone')
        mobilephone = mobilephone or contact.properties.get('mobilephone')

    phone_formatted = format_e164(phone, default_country_code) if phone else None
    mobile_formatted = format_e164(mobilephone, default_country_code) if mobilephone else None

    props_to_update = {}
    if phone_formatted and phone_formatted != phone:
        props_to_update['phone'] = phone_formatted
    if mobile_formatted and mobile_formatted != mobilephone:
        props_to_update['mobilephone'] = mobile_formatted

    if contact_id and props_to_update:
        hs_client.crm.contacts.basic_api.update(contact_id, properties=props_to_update)
        return {"contactId": contact_id, "phoneFormatted": phone_formatted, "mobileFormatted": mobile_formatted, "updated": True}

    return {"contactId": contact_id, "phoneFormatted": phone_formatted, "mobileFormatted": mobile_formatted, "updated": False}