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lint.yml / feat: attach a self-describing ticket card to the email (1.6.1-aio.10) (pull_request) Failing after 0s
The v1.6.1-aio.9 mail still scored 8.4/10 on mail-tester: the remaining
deduction was HTML_IMAGE_ONLY (1.8) — an HTML part whose only content of
note is a remote <img>. Remote images are also blocked by default in most
clients until the reader opts in, and a bare QR saved from that mail says
nothing about what it opens.
- New `qr.py` module (QR + logo helpers moved out of views_api) with
`render_ticket_card`: site title, event name, when/where, the branded
QR, name on ticket, ticket id and the door instruction, laid out with
the bundled DejaVu Sans; `format_event_when` gives "Fri 19 Feb 2027,
16:00 - 20:00"; filenames are `ticket-<event-slug>-<id8>.png`.
- `GET /events/api/v1/ticket-card/{ticket_id}` serves the same PNG
(anonymous, like the QR endpoint); the email's "Ticket image" link
now points there.
- The ticket email becomes multipart/mixed: text + HTML alternatives
(URLs as links, no <img>) plus the card as a PNG attachment, which
clients show inline at the end of the message and which works offline
at the door.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EYwoAkZZmXMMmaBp4WGUBo
64 lines
2 KiB
Python
64 lines
2 KiB
Python
from io import BytesIO
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from PIL import Image
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from ..qr import make_qr_png
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def test_make_qr_png_renders_requested_size():
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img = make_qr_png("ticket://abc123", size=200)
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assert img.size == (200, 200)
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def test_make_qr_png_pastes_a_centred_logo():
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logo = Image.new("RGBA", (64, 64), (255, 0, 0, 255))
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img = make_qr_png("ticket://abc123", size=300, logo=logo)
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assert img.size == (300, 300)
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# The centre pixel is inside the pasted logo, so it is red — a plain
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# QR would only ever have black or white there.
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assert img.getpixel((150, 150))[:3] == (255, 0, 0)
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out = BytesIO()
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img.save(out, format="PNG")
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assert out.getvalue().startswith(b"\x89PNG")
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def test_render_ticket_card_is_self_describing():
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from datetime import datetime, timezone
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from ..models import Event, Ticket
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from ..qr import format_event_when, render_ticket_card, ticket_card_filename
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now = datetime.now(timezone.utc)
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event = Event(
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id="evt1",
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wallet="w",
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name="Château du Faune | Uru Ecstatic Dance",
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info="",
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closing_date="2027-02-19",
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event_start_date="2027-02-19T16:00:00+01:00",
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event_end_date="2027-02-19T20:00:00+01:00",
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location="The Chateau",
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amount_tickets=10,
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price_per_ticket=15,
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time=now,
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)
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ticket = Ticket(
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id="8auNuuaBv7TFGj7BYoVnTN",
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wallet="w",
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event="evt1",
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name="Guest Test",
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email="g@example.com",
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registered=False,
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paid=True,
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time=now,
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reg_timestamp=now,
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)
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assert format_event_when(event) == "Fri 19 Feb 2027, 16:00 - 20:00"
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assert (
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ticket_card_filename(ticket, event)
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== "ticket-ch-teau-du-faune-uru-ecstatic-dance-8auNuuaB.png"
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)
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card = render_ticket_card(ticket, event, site_title="Oyez!")
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assert card.width == 800 and card.height > 800
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# QR area is centred; its finder pattern is black
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assert card.getpixel((400, card.height // 2)) in ((0, 0, 0), (255, 255, 255))
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