def wrapped_email_test()

in emails/views.py [0:0]

• 70 lines of code
• 14 McCabe index (conditional complexity)

def wrapped_email_test(request: HttpRequest) -> HttpResponse:
    """
    Demonstrate rendering of forwarded HTML emails.

    Settings like language can be given in the querystring, otherwise settings
    come from a randomly chosen profile.
    """

    if all(key in request.GET for key in ("language", "has_premium")):
        user_profile = None
    else:
        user_profile = Profile.objects.order_by("?").first()

    if "language" in request.GET:
        language = request.GET["language"]
    else:
        if user_profile is None:
            raise ValueError("user_profile must not be None")
        language = user_profile.language

    if "has_premium" in request.GET:
        has_premium = strtobool(request.GET["has_premium"])
    else:
        if user_profile is None:
            raise ValueError("user_profile must not be None")
        has_premium = user_profile.has_premium

    if "num_level_one_email_trackers_removed" in request.GET:
        num_level_one_email_trackers_removed = int(
            request.GET["num_level_one_email_trackers_removed"]
        )
    else:
        num_level_one_email_trackers_removed = 0

    if "has_tracker_report_link" in request.GET:
        has_tracker_report_link = strtobool(request.GET["has_tracker_report_link"])
    else:
        has_tracker_report_link = False
    if has_tracker_report_link:
        if num_level_one_email_trackers_removed:
            trackers = {
                "fake-tracker.example.com": num_level_one_email_trackers_removed
            }
        else:
            trackers = {}
        tracker_report_link = (
            "/tracker-report/#{"
            '"sender": "sender@example.com", '
            '"received_at": 1658434657, '
            f'"trackers": { json.dumps(trackers) }'
            "}"
        )
    else:
        tracker_report_link = ""

    path = "/emails/wrapped_email_test"
    old_query = {
        "language": language,
        "has_premium": "Yes" if has_premium else "No",
        "has_tracker_report_link": "Yes" if has_tracker_report_link else "No",
        "num_level_one_email_trackers_removed": str(
            num_level_one_email_trackers_removed
        ),
    }

    def switch_link(key, value):
        if old_query[key] == value:
            return str(value)
        new_query = old_query.copy()
        new_query[key] = value
        return f'<a href="{path}?{urlencode(new_query)}">{value}</a>'

    html_content = dedent(
        f"""\
    <p>
      <strong>Email rendering Test</strong>
    </p>
    <p>Settings: (<a href="{path}">clear all</a>)</p>
    <ul>
      <li>
        <strong>language</strong>:
        {escape(language)}
        (switch to
        {switch_link("language", "en-us")},
        {switch_link("language", "de")},
        {switch_link("language", "en-gb")},
        {switch_link("language", "fr")},
        {switch_link("language", "ru-ru")},
        {switch_link("language", "es-es")},
        {switch_link("language", "pt-br")},
        {switch_link("language", "it-it")},
        {switch_link("language", "en-ca")},
        {switch_link("language", "de-de")},
        {switch_link("language", "es-mx")})
      </li>
      <li>
        <strong>has_premium</strong>:
        {"Yes" if has_premium else "No"}
        (switch to
        {switch_link("has_premium", "Yes")},
        {switch_link("has_premium", "No")})
      </li>
      <li>
        <strong>has_tracker_report_link</strong>:
        {"Yes" if has_tracker_report_link else "No"}
        (switch to
        {switch_link("has_tracker_report_link", "Yes")},
        {switch_link("has_tracker_report_link", "No")})
      </li>
      <li>
        <strong>num_level_one_email_trackers_removed</strong>:
        {num_level_one_email_trackers_removed}
        (switch to
        {switch_link("num_level_one_email_trackers_removed", "0")},
        {switch_link("num_level_one_email_trackers_removed", "1")},
        {switch_link("num_level_one_email_trackers_removed", "2")})
      </li>
    </ul>
    """
    )

    wrapped_email = wrap_html_email(
        original_html=html_content,
        language=language,
        has_premium=has_premium,
        tracker_report_link=tracker_report_link,
        display_email="test@relay.firefox.com",
        num_level_one_email_trackers_removed=num_level_one_email_trackers_removed,
    )
    return HttpResponse(wrapped_email)