Coverage for app/backend/src/couchers/email/emails.py: 95%

1"""

2Defines data models for each email we sent out to users.

3"""

5import re

6from dataclasses import dataclass, replace

7from datetime import UTC, date, datetime

8from typing import Self, assert_never

10from markupsafe import Markup, escape

12from couchers import urls

13from couchers.config import config

14from couchers.constants import LATEST_RELEASE_BLOG_URL

15from couchers.email.blocks import (

16 ActionBlock,

17 EmailBase,

18 EmailBlock,

19 ParaBlock,

20 QuoteBlock,

21 UserInfo,

22)

23from couchers.email.locales import get_emails_i18next

24from couchers.i18n import LocalizationContext

25from couchers.i18n.localize import format_phone_number

26from couchers.markup import markdown_to_plaintext

27from couchers.notifications.quick_links import generate_quick_decline_link

28from couchers.proto import conversations_pb2, events_pb2, notification_data_pb2

29from couchers.utils import now, to_aware_datetime

31# Common string keys

32_do_not_reply_request_string_key = "generic.do_not_reply_request"

34# Specific email definitions

37@dataclass(kw_only=True, slots=True)

38class AccountDeletionStartedEmail(EmailBase):

39 """Sent to a user to confirm their account deletion request."""

41 deletion_link: str

43 @property

44 def string_key_base(self) -> str:

45 return "account_deletion.started"

47 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

48 builder = self._body_builder(loc_context, security_warning=True)

49 builder.para(".request_description")

50 builder.para(".confirmation_instructions")

51 builder.action(self.deletion_link, ".confirm_action")

52 return builder.build()

54 @classmethod

55 def from_notification(cls, data: notification_data_pb2.AccountDeletionStart, *, user_name: str) -> Self:

56 return cls(

57 user_name=user_name,

58 deletion_link=urls.delete_account_link(account_deletion_token=data.deletion_token),

59 )

61 @classmethod

62 def test_instances(cls) -> list[Self]:

63 return [

64 cls(

65 user_name="Alice",

66 deletion_link="https://couchers.org/delete-account?token=xxx",

67 )

68 ]

71@dataclass(kw_only=True, slots=True)

72class AccountDeletionCompletedEmail(EmailBase):

73 """Sent to a user after their account has been deleted."""

75 undelete_link: str

76 days: int

78 @property

79 def string_key_base(self) -> str:

80 return "account_deletion.completed"

82 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

83 builder = self._body_builder(loc_context, security_warning=True)

84 builder.para(".confirmation")

85 builder.para(".farewell")

86 builder.para(".recovery_instructions_days", {"count": self.days})

87 builder.action(self.undelete_link, ".recover_action")

88 return builder.build()

90 @classmethod

91 def from_notification(cls, data: notification_data_pb2.AccountDeletionComplete, *, user_name: str) -> Self:

92 return cls(

93 user_name=user_name,

94 undelete_link=urls.recover_account_link(account_undelete_token=data.undelete_token),

95 days=data.undelete_days,

96 )

98 @classmethod

99 def test_instances(cls) -> list[Self]:

100 return [

101 cls(

102 user_name="Alice",

103 undelete_link="https://couchers.org/recover-account?token=xxx",

104 days=30,

105 )

106 ]

107

108

109@dataclass(kw_only=True, slots=True)

110class AccountDeletionRecoveredEmail(EmailBase):

111 """Sent to a user after their account deletion has been cancelled."""

112

113 @property

114 def string_key_base(self) -> str:

115 return "account_deletion.recovered"

116

117 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

118 builder = self._body_builder(loc_context, security_warning=True)

119 builder.para(".confirmation")

120 builder.para(".login_instructions")

121 builder.action(urls.app_link(), ".login_action")

122 builder.para(".redelete_instructions")

123 return builder.build()

124

125 @classmethod

126 def test_instances(cls) -> list[Self]:

127 return [cls(user_name="Alice")]

128

129

130@dataclass(kw_only=True, slots=True)

131class ActivenessProbeEmail(EmailBase):

132 """Sent to a host to check if they are still open to hosting."""

133

134 days_left: int

135

136 @property

137 def string_key_base(self) -> str:

138 return "activeness_probe"

139

140 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

141 builder = self._body_builder(loc_context)

142 builder.para(".body")

143 builder.para(".instructions_days", {"count": self.days_left})

144 builder.action(urls.app_link(), ".login_action")

145 builder.para(".encouragement")

146

147 # Extract major.minor from the version string. "v1.3.18927" -> "1.3"

148 version = config.VERSION

149 if version_match := re.search(r"^v?(\d+\.\d+)\b", version): 149 ↛ 150line 149 didn't jump to line 150 because the condition on line 149 was never true

150 version = version_match[1]

151

152 builder.para(".latest_release", {"version": version})

153 builder.action(LATEST_RELEASE_BLOG_URL, ".read_blog_action")

154 return builder.build()

155

156 @classmethod

157 def from_notification(cls, data: notification_data_pb2.ActivenessProbe, *, user_name: str) -> Self:

158 days_left = (to_aware_datetime(data.deadline) - now()).days

159 return cls(user_name=user_name, days_left=days_left)

160

161 @classmethod

162 def test_instances(cls) -> list[Self]:

163 return [cls(user_name="Alice", days_left=7)]

164

165

166@dataclass(kw_only=True, slots=True)

167class APIKeyIssuedEmail(EmailBase):

168 """Sent to a user to notify them that their API key was issued."""

169

170 api_key: str

171 expiry: datetime

172

173 @property

174 def string_key_base(self) -> str:

175 return "api_key_issued"

176

177 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

178 builder = self._body_builder(loc_context, security_warning=True)

179 builder.para(".header")

180 builder.quote(self.api_key, markdown=False)

181 builder.para(".expiry", {"datetime": loc_context.localize_datetime(self.expiry)})

182 builder.para(".usage_warning")

183 builder.para(".policy_warning")

184 return builder.build()

185

186 @classmethod

187 def from_notification(cls, data: notification_data_pb2.ApiKeyCreate, *, user_name: str) -> Self:

188 return cls(user_name=user_name, api_key=data.api_key, expiry=data.expiry.ToDatetime(tzinfo=UTC))

189

190 @classmethod

191 def test_instances(cls) -> list[Self]:

192 return [cls(user_name="Alice", api_key="my_api_key_123", expiry=datetime(2099, 12, 31, 23, 59, 59, tzinfo=UTC))]

193

194

195@dataclass(kw_only=True, slots=True)

196class BadgeChangedEmail(EmailBase):

197 """Sent to a user to notify them that a badge was added or removed from their profile."""

198

199 badge_name: str

200 added: bool

201

202 @property

203 def string_key_base(self) -> str:

204 return "badges.added" if self.added else "badges.removed"

205

206 def get_subject_line(self, loc_context: LocalizationContext) -> str:

207 return self._localize(loc_context, ".subject", {"name": self.badge_name})

208

209 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

210 builder = self._body_builder(loc_context)

211 builder.para(".body", {"name": self.badge_name})

212 return builder.build()

213

214 @classmethod

215 def from_notification(

216 cls, data: notification_data_pb2.BadgeAdd | notification_data_pb2.BadgeRemove, *, user_name: str

217 ) -> Self:

218 return cls(

219 user_name=user_name, badge_name=data.badge_name, added=isinstance(data, notification_data_pb2.BadgeAdd)

220 )

221

222 @classmethod

223 def test_instances(cls) -> list[Self]:

224 prototype = cls(user_name="Alice", badge_name="Founder", added=True)

225 return [replace(prototype, added=True), replace(prototype, added=False)]

226

227

228@dataclass(kw_only=True, slots=True)

229class BirthdateChangedEmail(EmailBase):

230 """Sent to a user to notify them that their birthdate was changed."""

231

232 new_birthdate: date

233

234 @property

235 def string_key_base(self) -> str:

236 return "birthdate_changed"

237

238 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

239 builder = self._body_builder(loc_context, security_warning=True)

240 builder.para(".body", {"date": loc_context.localize_date(self.new_birthdate)})

241 return builder.build()

242

243 @classmethod

244 def from_notification(cls, data: notification_data_pb2.BirthdateChange, *, user_name: str) -> Self:

245 return cls(user_name=user_name, new_birthdate=date.fromisoformat(data.birthdate))

246

247 @classmethod

248 def test_instances(cls) -> list[Self]:

249 return [

250 cls(

251 user_name="Alice",

252 new_birthdate=date(1990, 1, 1),

253 )

254 ]

255

256

257@dataclass(kw_only=True, slots=True)

258class ChatMessageReceivedEmail(EmailBase):

259 """Sent to a user when they receive a new chat message."""

260

261 group_chat_title: str | None # None if direct message

262 author: UserInfo

263 text: str

264 view_url: str

265

266 @property

267 def string_key_base(self) -> str:

268 return f"chat_messages.received.{'direct' if self.group_chat_title is None else 'group'}"

269

270 def get_subject_line(self, loc_context: LocalizationContext) -> str:

271 return self._localize(

272 loc_context, ".subject", {"author": self.author.name, "group": self.group_chat_title or ""}

273 )

274

275 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

276 return self.text

277

278 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

279 builder = self._body_builder(loc_context)

280 builder.para(".body", {"author": self.author.name, "group": self.group_chat_title or ""})

281 builder.user(self.author)

282 builder.quote(self.text, markdown=False)

283 builder.action(self.view_url, ".view_action")

284 return builder.build()

285

286 @classmethod

287 def from_notification(cls, data: notification_data_pb2.ChatMessage, *, user_name: str) -> Self:

288 return cls(

289 user_name,

290 author=UserInfo.from_protobuf(data.author),

291 text=data.text,

292 group_chat_title=data.group_chat_title or None,

293 view_url=urls.chat_link(chat_id=data.group_chat_id),

294 )

295

296 @classmethod

297 def test_instances(cls) -> list[Self]:

298 prototype = cls(

299 user_name="Alice",

300 group_chat_title=None,

301 author=UserInfo.dummy_bob(),

302 text="Hi Alice!",

303 view_url="https://couchers.org/messages/chats/123",

304 )

305 return [

306 replace(prototype, group_chat_title=None),

307 replace(prototype, group_chat_title="Best friends"),

308 ]

309

310

311@dataclass(kw_only=True, slots=True)

312class ChatMessagesMissedEmail(EmailBase):

313 """Sent to a user after they've missed new chat messages."""

314

315 @dataclass(kw_only=True, slots=True)

316 class Entry:

317 """Entry for each chat with missed messages."""

318

319 group_chat_title: str | None # None if direct message

320 missed_count: int

321 latest_message_author: UserInfo

322 latest_message_text: str

323 view_url: str

324

325 entries: list[Entry]

326

327 @property

328 def string_key_base(self) -> str:

329 return "chat_messages.missed"

330

331 def get_subject_line(self, loc_context: LocalizationContext) -> str:

332 return self._localize(loc_context, ".subject")

333

334 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

335 if len(self.entries) != 1:

336 return None

337 return self.entries[0].latest_message_text

338

339 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

340 builder = self._body_builder(loc_context)

341 for entry in self.entries:

342 if entry.group_chat_title is None:

343 builder.para(".in_dm", {"count": entry.missed_count, "author": entry.latest_message_author.name})

344 else:

345 builder.para(".in_group", {"count": entry.missed_count, "group": entry.group_chat_title})

346 builder.user(entry.latest_message_author)

347 builder.quote(entry.latest_message_text, markdown=False)

348 builder.action(entry.view_url, ".view_action")

349 return builder.build()

350

351 @classmethod

352 def from_notification(cls, data: notification_data_pb2.ChatMissedMessages, *, user_name: str) -> Self:

353 missed_entries = [

354 cls.Entry(

355 group_chat_title=message.group_chat_title or None,

356 missed_count=message.unseen_count,

357 latest_message_author=UserInfo.from_protobuf(message.author),

358 latest_message_text=message.text,

359 view_url=urls.chat_link(chat_id=message.group_chat_id),

360 )

361 for message in data.messages

362 ]

363

364 return cls(user_name, entries=missed_entries)

365

366 @classmethod

367 def test_instances(cls) -> list[Self]:

368 entry_prototype = ChatMessagesMissedEmail.Entry(

369 group_chat_title=None,

370 missed_count=1,

371 latest_message_author=UserInfo.dummy_bob(),

372 latest_message_text="Hello!",

373 view_url="https://couchers.org/messages/chats/123",

374 )

375 return [

376 cls(

377 user_name="Alice",

378 entries=[

379 replace(entry_prototype, group_chat_title=None),

380 replace(entry_prototype, group_chat_title="Best friends"),

381 ],

382 )

383 ]

384

385

386@dataclass(kw_only=True, slots=True)

387class DiscussionCreatedEmail(EmailBase):

388 """Sent to a user when a new discussion is created in a community they follow."""

389

390 author: UserInfo

391 title: str

392 parent_context: str # Community or group name

393 markdown_text: str

394 view_link: str

395

396 @property

397 def string_key_base(self) -> str:

398 return "discussions.created"

399

400 def get_subject_line(self, loc_context: LocalizationContext) -> str:

401 return self._localize(loc_context, ".subject", {"author": self.author.name, "title": self.title})

402

403 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

404 return markdown_to_plaintext(self.markdown_text)

405

406 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

407 builder = self._body_builder(loc_context)

408 builder.para(

409 ".body",

410 {

411 "author": self.author.name,

412 "title": self.title,

413 "parent_context": self.parent_context,

414 },

415 )

416 builder.user(self.author)

417 builder.quote(self.markdown_text, markdown=True)

418 builder.action(self.view_link, ".view_action")

419 return builder.build()

420

421 @classmethod

422 def from_notification(cls, data: notification_data_pb2.DiscussionCreate, *, user_name: str) -> Self:

423 discussion = data.discussion

424 return cls(

425 user_name=user_name,

426 author=UserInfo.from_protobuf(data.author),

427 title=discussion.title,

428 parent_context=discussion.owner_title,

429 markdown_text=discussion.content,

430 view_link=urls.discussion_link(discussion_id=discussion.discussion_id, slug=discussion.slug),

431 )

432

433 @classmethod

434 def test_instances(cls) -> list[Self]:

435 return [

436 cls(

437 user_name="Alice",

438 author=UserInfo.dummy_bob(),

439 title="Best hiking trails near Berlin",

440 parent_context="Berlin",

441 markdown_text="I've been exploring the area and found some **great** spots...",

442 view_link="https://couchers.org/discussions/123",

443 )

444 ]

445

446

447@dataclass(kw_only=True, slots=True)

448class DiscussionCommentEmail(EmailBase):

449 """Sent to a user when someone comments on a discussion they follow."""

450

451 author: UserInfo

452 discussion_title: str

453 discussion_parent_context: str # Community or group name

454 markdown_text: str

455 view_link: str

456

457 @property

458 def string_key_base(self) -> str:

459 return "discussions.comment"

460

461 def get_subject_line(self, loc_context: LocalizationContext) -> str:

462 return self._localize(

463 loc_context, ".subject", {"author": self.author.name, "discussion_title": self.discussion_title}

464 )

465

466 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

467 return markdown_to_plaintext(self.markdown_text)

468

469 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

470 builder = self._body_builder(loc_context)

471 builder.para(

472 ".body",

473 {

474 "author": self.author.name,

475 "discussion_title": self.discussion_title,

476 "parent_context": self.discussion_parent_context,

477 },

478 )

479 builder.user(self.author)

480 builder.quote(self.markdown_text, markdown=True)

481 builder.action(self.view_link, ".view_action")

482 return builder.build()

483

484 @classmethod

485 def from_notification(cls, data: notification_data_pb2.DiscussionComment, *, user_name: str) -> Self:

486 discussion = data.discussion

487 return cls(

488 user_name=user_name,

489 author=UserInfo.from_protobuf(data.author),

490 discussion_title=discussion.title,

491 discussion_parent_context=discussion.owner_title,

492 markdown_text=data.reply.content,

493 view_link=urls.discussion_link(discussion_id=discussion.discussion_id, slug=discussion.slug),

494 )

495

496 @classmethod

497 def test_instances(cls) -> list[Self]:

498 return [

499 cls(

500 user_name="Alice",

501 author=UserInfo.dummy_bob(),

502 discussion_title="Best hiking trails near Berlin",

503 discussion_parent_context="Berlin",

504 markdown_text="Great recommendations, I also **love** the Grünewald forest!",

505 view_link="https://couchers.org/discussions/123",

506 )

507 ]

508

509

510@dataclass(kw_only=True, slots=True)

511class DonationReceivedEmail(EmailBase):

512 """Sent to a user to thank them for a donation."""

513

514 amount: int

515 receipt_url: str

516

517 @property

518 def string_key_base(self) -> str:

519 return "donation_received"

520

521 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

522 builder = self._body_builder(loc_context, standard_closing=False)

523 builder.para(".thanks_amount", {"amount": self.amount})

524 builder.para(".purpose")

525 builder.para(".invoice_receipt_info")

526 builder.action(self.receipt_url, ".download_invoice")

527 builder.para(".tax_acknowledgment")

528 builder.para(".questions_contact")

529 builder.para(".generosity_helps")

530 builder.para(".thank_you")

531 builder.para("generic.founders_signature")

532 return builder.build()

533

534 @classmethod

535 def from_notification(cls, data: notification_data_pb2.DonationReceived, *, user_name: str) -> Self:

536 return cls(user_name=user_name, amount=data.amount, receipt_url=data.receipt_url)

537

538 @classmethod

539 def test_instances(cls) -> list[Self]:

540 return [cls(user_name="Alice", amount=25, receipt_url="https://couchers.org/receipts/123")]

541

542

543@dataclass(kw_only=True, slots=True)

544class EmailChangedEmail(EmailBase):

545 """Sent to a user to notify them that their email address was changed."""

546

547 new_email: str

548

549 @property

550 def string_key_base(self) -> str:

551 return "email_change.initiated"

552

553 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

554 builder = self._body_builder(loc_context, security_warning=True)

555 builder.para(".body", {"email_address": self.new_email})

556 return builder.build()

557

558 @classmethod

559 def from_notification(cls, data: notification_data_pb2.EmailAddressChange, *, user_name: str) -> Self:

560 return cls(user_name=user_name, new_email=data.new_email)

561

562 @classmethod

563 def test_instances(cls) -> list[Self]:

564 return [cls(user_name="Alice", new_email="alice@example.com")]

565

566

567@dataclass(kw_only=True, slots=True)

568class EmailChangeConfirmationEmail(EmailBase):

569 """Sent to a user to confirm their new email address."""

570

571 old_email: str

572 confirm_url: str

573

574 @property

575 def string_key_base(self) -> str:

576 return "email_change.confirmation"

577

578 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

579 builder = self._body_builder(loc_context, security_warning=True)

580 builder.para(".context", {"old_email": self.old_email})

581 builder.para(".instructions")

582 builder.action(self.confirm_url, ".confirm_action")

583 return builder.build()

584

585 @classmethod

586 def test_instances(cls) -> list[Self]:

587 return [cls(user_name="Alice", old_email="alice@example.com", confirm_url="https://example.com")]

588

589

590@dataclass(kw_only=True, slots=True)

591class EmailVerifiedEmail(EmailBase):

592 """Sent to a user to notify them that their new email address has been verified."""

593

594 @property

595 def string_key_base(self) -> str:

596 return "email_change.verified"

597

598 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

599 builder = self._body_builder(loc_context, security_warning=True)

600 builder.para(".body")

601 return builder.build()

602

603 @classmethod

604 def test_instances(cls) -> list[Self]:

605 return [cls(user_name="Alice")]

606

607

608@dataclass(kw_only=True, slots=True)

609class EventInfo:

610 """Common display fields for an event, extracted from its proto representation."""

611

612 title: str

613 start_time: datetime

614 end_time: datetime

615 online_link: str | None

616 address: str | None

617 view_url: str

618 description_markdown: str

619

620 def get_details_block(self, loc_context: LocalizationContext) -> EmailBlock:

621 # TODO(#8695): Support localized time ranges

622 start_time_display = loc_context.localize_datetime(self.start_time, with_year=False, with_day_of_week=True)

623 end_time_display = loc_context.localize_datetime(self.end_time, with_year=False, with_day_of_week=True)

624 time_range_display = f"{start_time_display} - {end_time_display}"

625

626 # Format the following. Only "Online" is translated and it's on its own line,

627 # so the string concatenation is fine.

628 # **<title>**

629 # <datetime-range>

630 # *<address> / [Online](<online_link>)*

631 html = f"{escape(self.title)}"

632 html += " "

633 html += time_range_display

634 if self.online_link: 634 ↛ 635line 634 didn't jump to line 635 because the condition on line 634 was never true

635 html += " "

636 online_link_text = get_emails_i18next().localize("events.generic.online_link", loc_context.locale)

637 html += f'<a href="{escape(self.online_link)}">{escape(online_link_text)}</a>'

638 elif self.address:

639 html += " "

640 html += f"{escape(self.address)}"

641

642 return ParaBlock(text=Markup(html))

643

644 def get_description_block(self) -> EmailBlock:

645 return QuoteBlock(text=Markup(self.description_markdown), markdown=True)

646

647 def get_view_action_block(self, loc_context: LocalizationContext) -> EmailBlock:

648 view_action_text = get_emails_i18next().localize("events.generic.view_action", loc_context.locale)

649 return ActionBlock(text=view_action_text, target_url=self.view_url)

650

651 @classmethod

652 def from_proto(cls, event: events_pb2.Event) -> EventInfo:

653 return cls(

654 title=event.title,

655 start_time=event.start_time.ToDatetime(tzinfo=UTC),

656 end_time=event.end_time.ToDatetime(tzinfo=UTC),

657 online_link=event.online_information.link or None,

658 address=event.offline_information.address or None,

659 view_url=urls.event_link(occurrence_id=event.event_id, slug=event.slug),

660 description_markdown=event.content or "",

661 )

662

663 @staticmethod

664 def dummy() -> EventInfo:

665 return EventInfo(

666 title="Berlin Meetup",

667 start_time=datetime(2025, 7, 15, 18, 0, 0, tzinfo=UTC),

668 end_time=datetime(2025, 7, 15, 21, 0, 0, tzinfo=UTC),

669 online_link=None,

670 address="Alexanderplatz, Berlin",

671 view_url="https://couchers.org/events/123/berlin-community-meetup",

672 description_markdown="Come join us for our monthly meetup!",

673 )

674

675

676@dataclass(kw_only=True, slots=True)

677class EventCreatedEmail(EmailBase):

678 """Sent when a user is invited to an event (create_approved) or a new event is created (create_any)."""

679

680 inviting_user: UserInfo

681 event_info: EventInfo

682 community_name: str | None

683 community_url: str | None

684 is_invite: bool # True = create_approved (invitation), False = create_any

685

686 @property

687 def string_key_base(self) -> str:

688 return f"events.created.{'invitation' if self.is_invite else 'notification'}"

689

690 def get_subject_line(self, loc_context: LocalizationContext) -> str:

691 return self._localize(

692 loc_context, ".subject", {"user": self.inviting_user.name, "title": self.event_info.title}

693 )

694

695 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

696 return markdown_to_plaintext(self.event_info.description_markdown)

697

698 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

699 builder = self._body_builder(loc_context)

700 if self.community_name:

701 builder.para(".body_with_community", {"community": self.community_name})

702 else:

703 builder.para(".body_no_community")

704 builder.block(self.event_info.get_details_block(loc_context))

705 builder.user(self.inviting_user)

706 builder.block(self.event_info.get_description_block())

707 builder.block(self.event_info.get_view_action_block(loc_context))

708 return builder.build()

709

710 @classmethod

711 def from_notification(cls, data: notification_data_pb2.EventCreate, *, user_name: str, is_invite: bool) -> Self:

712 has_community = bool(data.in_community.community_id)

713 community_url = (

714 urls.community_link(node_id=data.in_community.community_id, slug=data.in_community.slug)

715 if has_community

716 else None

717 )

718 return cls(

719 user_name=user_name,

720 inviting_user=UserInfo.from_protobuf(data.inviting_user),

721 event_info=EventInfo.from_proto(data.event),

722 community_name=data.in_community.name if has_community else None,

723 community_url=community_url,

724 is_invite=is_invite,

725 )

726

727 @classmethod

728 def test_instances(cls) -> list[Self]:

729 prototype = cls(

730 user_name="Alice",

731 inviting_user=UserInfo.dummy_bob(),

732 event_info=EventInfo.dummy(),

733 community_name="Berlin",

734 community_url="https://couchers.org/community/1/berlin-community",

735 is_invite=True,

736 )

737 return [

738 replace(prototype, is_invite=True),

739 replace(prototype, is_invite=True, community_name=None, community_url=None),

740 replace(prototype, is_invite=False),

741 replace(prototype, is_invite=False, community_name=None, community_url=None),

742 ]

743

744

745@dataclass(kw_only=True, slots=True)

746class EventUpdatedEmail(EmailBase):

747 """Sent to subscribers when an event is updated."""

748

749 updating_user: UserInfo

750 event_info: EventInfo

751 updated_items: list[notification_data_pb2.EventUpdateItem.ValueType]

752

753 @property

754 def string_key_base(self) -> str:

755 return "events.updated"

756

757 def get_subject_line(self, loc_context: LocalizationContext) -> str:

758 return self._localize(

759 loc_context, ".subject", {"user": self.updating_user.name, "title": self.event_info.title}

760 )

761

762 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

763 builder = self._body_builder(loc_context)

764 builder.para(".body")

765

766 updated_items_string_keys = list(

767 filter(None, (type(self)._updated_item_to_string_key(i) for i in self.updated_items))

768 )

769 if updated_items_string_keys:

770 updated_items_text = loc_context.localize_list(

771 [self._localize(loc_context, key) for key in updated_items_string_keys]

772 )

773 builder.para(".updated_items", {"items_list": updated_items_text})

774 else:

775 builder.para(".updated_generic")

776

777 builder.block(self.event_info.get_details_block(loc_context))

778 builder.user(self.updating_user)

779 builder.block(self.event_info.get_description_block())

780 builder.block(self.event_info.get_view_action_block(loc_context))

781 return builder.build()

782

783 @classmethod

784 def from_notification(cls, data: notification_data_pb2.EventUpdate, *, user_name: str) -> Self:

785 updated_items: list[notification_data_pb2.EventUpdateItem.ValueType] = []

786 if data.updated_enum_items: 786 ↛ 788line 786 didn't jump to line 788 because the condition on line 786 was always true

787 updated_items.extend(data.updated_enum_items)

788 elif data.updated_str_items:

789 for updated_str_item in data.updated_str_items:

790 if updated_enum_item := cls._updated_item_str_to_enum(updated_str_item):

791 updated_items.append(updated_enum_item)

792

793 return cls(

794 user_name=user_name,

795 updating_user=UserInfo.from_protobuf(data.updating_user),

796 event_info=EventInfo.from_proto(data.event),

797 updated_items=updated_items,

798 )

799

800 # TODO(#9117): Backcompat. Remove update_str_items fallback once known unused.

801 @staticmethod

802 def _updated_item_str_to_enum(value: str) -> notification_data_pb2.EventUpdateItem.ValueType | None:

803 match value:

804 case "title":

805 return notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_TITLE

806 case "content":

807 return notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_CONTENT

808 case "location":

809 return notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_LOCATION

810 case "start time":

811 return notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_START_TIME

812 case "end time":

813 return notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_END_TIME

814 case _:

815 return None

816

817 @staticmethod

818 def _updated_item_to_string_key(value: notification_data_pb2.EventUpdateItem.ValueType) -> str | None:

819 match value:

820 case notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_TITLE:

821 return ".item_names.title"

822 case notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_CONTENT:

823 return ".item_names.content"

824 case notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_LOCATION:

825 return ".item_names.location"

826 case notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_START_TIME:

827 return ".item_names.start_time"

828 case notification_data_pb2.EventUpdateItem.EVENT_UPDATE_ITEM_END_TIME:

829 return ".item_names.end_time"

830 case _:

831 return None

832

833 @classmethod

834 def test_instances(cls) -> list[Self]:

835 prototype = cls(

836 user_name="Alice", updating_user=UserInfo.dummy_bob(), event_info=EventInfo.dummy(), updated_items=[]

837 )

838 return [

839 replace(prototype, updated_items=[]),

840 replace(prototype, updated_items=notification_data_pb2.EventUpdateItem.values()),

841 ]

842

843

844@dataclass(kw_only=True, slots=True)

845class EventOrganizerInvitedEmail(EmailBase):

846 """Sent when a user is invited to co-organize an event."""

847

848 inviting_user: UserInfo

849 event_info: EventInfo

850

851 @property

852 def string_key_base(self) -> str:

853 return "events.organizer_invited"

854

855 def get_subject_line(self, loc_context: LocalizationContext) -> str:

856 return self._localize(

857 loc_context,

858 ".subject",

859 {"user": self.inviting_user.name, "title": self.event_info.title},

860 )

861

862 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

863 builder = self._body_builder(loc_context)

864 builder.para(".body", {"user": self.inviting_user.name, "title": self.event_info.title})

865 builder.block(self.event_info.get_details_block(loc_context))

866 builder.user(self.inviting_user, comment_key=".user_card_text")

867 builder.block(self.event_info.get_description_block())

868 builder.block(self.event_info.get_view_action_block(loc_context))

869 builder.para(_do_not_reply_request_string_key)

870 return builder.build()

871

872 @classmethod

873 def from_notification(cls, data: notification_data_pb2.EventInviteOrganizer, *, user_name: str) -> Self:

874 return cls(

875 user_name=user_name,

876 inviting_user=UserInfo.from_protobuf(data.inviting_user),

877 event_info=EventInfo.from_proto(data.event),

878 )

879

880 @classmethod

881 def test_instances(cls) -> list[Self]:

882 return [cls(user_name="Alice", inviting_user=UserInfo.dummy_bob(), event_info=EventInfo.dummy())]

883

884

885@dataclass(kw_only=True, slots=True)

886class EventCommentEmail(EmailBase):

887 """Sent to subscribers when someone comments on an event."""

888

889 author: UserInfo

890 event_info: EventInfo

891 comment_markdown: str

892

893 @property

894 def string_key_base(self) -> str:

895 return "events.comment"

896

897 def get_subject_line(self, loc_context: LocalizationContext) -> str:

898 return self._localize(loc_context, ".subject", {"author": self.author.name, "title": self.event_info.title})

899

900 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

901 return markdown_to_plaintext(self.comment_markdown)

902

903 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

904 builder = self._body_builder(loc_context)

905 builder.para(".body", {"author": self.author.name, "title": self.event_info.title})

906 builder.user(self.author)

907 builder.quote(self.comment_markdown, markdown=True)

908 builder.para(".event_details")

909 builder.block(self.event_info.get_details_block(loc_context))

910 builder.block(self.event_info.get_view_action_block(loc_context))

911 return builder.build()

912

913 @classmethod

914 def from_notification(cls, data: notification_data_pb2.EventComment, *, user_name: str) -> Self:

915 return cls(

916 user_name=user_name,

917 author=UserInfo.from_protobuf(data.author),

918 event_info=EventInfo.from_proto(data.event),

919 comment_markdown=data.reply.content,

920 )

921

922 @classmethod

923 def test_instances(cls) -> list[Self]:

924 return [

925 cls(

926 user_name="Alice",

927 author=UserInfo.dummy_bob(),

928 event_info=EventInfo.dummy(),

929 comment_markdown="Looking forward to it, see you all there!",

930 )

931 ]

932

933

934@dataclass(kw_only=True, slots=True)

935class EventReminderEmail(EmailBase):

936 """Sent to subscribers as a reminder that an event starts soon."""

937

938 event_info: EventInfo

939

940 @property

941 def string_key_base(self) -> str:

942 return "events.reminder"

943

944 def get_subject_line(self, loc_context: LocalizationContext) -> str:

945 return self._localize(loc_context, ".subject", {"title": self.event_info.title})

946

947 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

948 builder = self._body_builder(loc_context)

949 builder.para(".body")

950 builder.block(self.event_info.get_details_block(loc_context))

951 builder.block(self.event_info.get_description_block())

952 builder.block(self.event_info.get_view_action_block(loc_context))

953 return builder.build()

954

955 @classmethod

956 def from_notification(cls, data: notification_data_pb2.EventReminder, *, user_name: str) -> Self:

957 return cls(

958 user_name=user_name,

959 event_info=EventInfo.from_proto(data.event),

960 )

961

962 @classmethod

963 def test_instances(cls) -> list[Self]:

964 return [cls(user_name="Alice", event_info=EventInfo.dummy())]

965

966

967@dataclass(kw_only=True, slots=True)

968class EventCancelledEmail(EmailBase):

969 """Sent to subscribers when an event is cancelled."""

970

971 cancelling_user: UserInfo

972 event_info: EventInfo

973

974 @property

975 def string_key_base(self) -> str:

976 return "events.cancel"

977

978 def get_subject_line(self, loc_context: LocalizationContext) -> str:

979 return self._localize(

980 loc_context,

981 ".subject",

982 {"user": self.cancelling_user.name, "title": self.event_info.title},

983 )

984

985 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

986 builder = self._body_builder(loc_context)

987 builder.para(".body")

988 builder.block(self.event_info.get_details_block(loc_context))

989 builder.user(self.cancelling_user, ".user_card_text")

990 builder.quote(self.event_info.description_markdown, markdown=True)

991 builder.block(self.event_info.get_view_action_block(loc_context))

992 return builder.build()

993

994 @classmethod

995 def from_notification(cls, data: notification_data_pb2.EventCancel, *, user_name: str) -> Self:

996 return cls(

997 user_name=user_name,

998 cancelling_user=UserInfo.from_protobuf(data.cancelling_user),

999 event_info=EventInfo.from_proto(data.event),

1000 )

1001

1002 @classmethod

1003 def test_instances(cls) -> list[Self]:

1004 return [cls(user_name="Alice", cancelling_user=UserInfo.dummy_bob(), event_info=EventInfo.dummy())]

1005

1006

1007@dataclass(kw_only=True, slots=True)

1008class EventDeletedEmail(EmailBase):

1009 """Sent to subscribers when a moderator deletes an event."""

1010

1011 event_info: EventInfo

1012

1013 @property

1014 def string_key_base(self) -> str:

1015 return "events.deleted"

1016

1017 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1018 return self._localize(loc_context, ".subject", {"title": self.event_info.title})

1019

1020 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1021 builder = self._body_builder(loc_context)

1022 builder.para(".body")

1023 builder.block(self.event_info.get_details_block(loc_context))

1024 return builder.build()

1025

1026 @classmethod

1027 def from_notification(cls, data: notification_data_pb2.EventDelete, *, user_name: str) -> Self:

1028 return cls(

1029 user_name=user_name,

1030 event_info=EventInfo.from_proto(data.event),

1031 )

1032

1033 @classmethod

1034 def test_instances(cls) -> list[Self]:

1035 return [

1036 cls(

1037 user_name="Alice",

1038 event_info=EventInfo.dummy(),

1039 )

1040 ]

1041

1042

1043@dataclass(kw_only=True, slots=True)

1044class FriendReferenceReceivedEmail(EmailBase):

1045 """Sent to a user when they receive a friend reference."""

1046

1047 from_user: UserInfo

1048 text: str

1049

1050 @property

1051 def string_key_base(self) -> str:

1052 return "references.received.friend"

1053

1054 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1055 return self._localize(loc_context, ".subject", {"name": self.from_user.name})

1056

1057 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

1058 return self.text

1059

1060 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1061 builder = self._body_builder(loc_context)

1062 builder.para(".body", {"name": self.from_user.name})

1063 builder.user(self.from_user)

1064 builder.quote(self.text, markdown=False)

1065 builder.action(urls.profile_references_link(), "references.received.view_action")

1066 return builder.build()

1067

1068 @classmethod

1069 def from_notification(cls, data: notification_data_pb2.ReferenceReceiveFriend, *, user_name: str) -> Self:

1070 return cls(user_name=user_name, from_user=UserInfo.from_protobuf(data.from_user), text=data.text)

1071

1072 @classmethod

1073 def test_instances(cls) -> list[Self]:

1074 return [

1075 cls(

1076 user_name="Alice",

1077 from_user=UserInfo.dummy_bob(),

1078 text="Alice is a wonderful person and a great travel companion!",

1079 )

1080 ]

1081

1082

1083@dataclass(kw_only=True, slots=True)

1084class FriendRequestReceivedEmail(EmailBase):

1085 """Sent to a user when they receive a friend request."""

1086

1087 befriender: UserInfo

1088

1089 @property

1090 def string_key_base(self) -> str:

1091 return "friend_requests.received"

1092

1093 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1094 return self._localize(loc_context, ".subject", {"name": self.befriender.name})

1095

1096 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1097 builder = self._body_builder(loc_context)

1098 builder.para(".body", {"name": self.befriender.name})

1099 builder.user(self.befriender)

1100 builder.action(urls.friend_requests_link(), ".view_action")

1101 builder.para(".closing")

1102 builder.para(_do_not_reply_request_string_key)

1103 return builder.build()

1104

1105 @classmethod

1106 def from_notification(cls, data: notification_data_pb2.FriendRequestCreate, *, user_name: str) -> Self:

1107 return cls(user_name=user_name, befriender=UserInfo.from_protobuf(data.other_user))

1108

1109 @classmethod

1110 def test_instances(cls) -> list[Self]:

1111 return [

1112 cls(

1113 user_name="Alice",

1114 befriender=UserInfo.dummy_bob(),

1115 )

1116 ]

1117

1118

1119@dataclass(kw_only=True, slots=True)

1120class FriendRequestAcceptedEmail(EmailBase):

1121 """Sent to a user when their friend request is accepted."""

1122

1123 new_friend: UserInfo

1124

1125 @property

1126 def string_key_base(self) -> str:

1127 return "friend_requests.accepted"

1128

1129 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1130 return self._localize(loc_context, ".subject", {"name": self.new_friend.name})

1131

1132 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1133 builder = self._body_builder(loc_context)

1134 builder.para(".body", {"name": self.new_friend.name})

1135 builder.user(self.new_friend)

1136 builder.action(self.new_friend.profile_url, ".view_action")

1137 builder.para(".closing")

1138 return builder.build()

1139

1140 @classmethod

1141 def from_notification(cls, data: notification_data_pb2.FriendRequestAccept, *, user_name: str) -> Self:

1142 return cls(user_name=user_name, new_friend=UserInfo.from_protobuf(data.other_user))

1143

1144 @classmethod

1145 def test_instances(cls) -> list[Self]:

1146 return [

1147 cls(

1148 user_name="Alice",

1149 new_friend=UserInfo.dummy_bob(),

1150 )

1151 ]

1152

1153

1154@dataclass(kw_only=True, slots=True)

1155class GenderChangedEmail(EmailBase):

1156 """Sent to a user to notify them that their gender was changed."""

1157

1158 new_gender: str

1159

1160 @property

1161 def string_key_base(self) -> str:

1162 return "gender_changed"

1163

1164 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1165 builder = self._body_builder(loc_context, security_warning=True)

1166 builder.para(".body", {"gender": self.new_gender})

1167 return builder.build()

1168

1169 @classmethod

1170 def from_notification(cls, data: notification_data_pb2.GenderChange, *, user_name: str) -> Self:

1171 return cls(user_name=user_name, new_gender=data.gender)

1172

1173 @classmethod

1174 def test_instances(cls) -> list[Self]:

1175 return [

1176 cls(

1177 user_name="Alice",

1178 new_gender="Male",

1179 )

1180 ]

1181

1182

1183@dataclass(kw_only=True, slots=True)

1184class HostRequestCreatedEmail(EmailBase):

1185 """Sent to a host when a surfer sends them a new host request."""

1186

1187 surfer: UserInfo

1188 from_date: date

1189 to_date: date

1190 text: str

1191 quick_decline_link: str

1192 view_link: str

1193

1194 @property

1195 def string_key_base(self) -> str:

1196 return "host_requests.created"

1197

1198 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1199 return self._localize(loc_context, ".subject", {"surfer_name": self.surfer.name})

1200

1201 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

1202 return self.text

1203

1204 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1205 builder = self._body_builder(loc_context)

1206 builder.para(".body", {"surfer_name": self.surfer.name})

1207 builder.user(

1208 self.surfer,

1209 "host_requests.generic.date_range",

1210 {

1211 "from_date": _localize_host_request_date(self.from_date, loc_context),

1212 "to_date": _localize_host_request_date(self.to_date, loc_context),

1213 },

1214 )

1215 builder.quote(self.text, markdown=False)

1216 builder.action(self.view_link, "host_requests.generic.view_action")

1217 builder.action(self.quick_decline_link, ".quick_decline_action")

1218 builder.para(".respond_encouragement")

1219 builder.para(_do_not_reply_request_string_key)

1220 return builder.build()

1221

1222 @classmethod

1223 def from_notification(cls, data: notification_data_pb2.HostRequestCreate, *, user_name: str) -> Self:

1224 return cls(

1225 user_name,

1226 surfer=UserInfo.from_protobuf(data.surfer),

1227 from_date=date.fromisoformat(data.host_request.from_date),

1228 to_date=date.fromisoformat(data.host_request.to_date),

1229 text=data.text,

1230 quick_decline_link=generate_quick_decline_link(data.host_request),

1231 view_link=urls.host_request(host_request_id=data.host_request.host_request_id),

1232 )

1233

1234 @classmethod

1235 def test_instances(cls) -> list[Self]:

1236 return [

1237 cls(

1238 user_name="Alice",

1239 surfer=UserInfo.dummy_bob(),

1240 from_date=date(2025, 6, 1),

1241 to_date=date(2025, 6, 7),

1242 text="Hey, I'd love to stay for a few nights!",

1243 quick_decline_link="https://couchers.org/requests/123/decline?token=xxx",

1244 view_link="https://couchers.org/requests/123",

1245 )

1246 ]

1247

1248

1249@dataclass(kw_only=True, slots=True)

1250class HostRequestReminderEmail(EmailBase):

1251 """Sent to a host as a reminder to respond to a pending host request."""

1252

1253 surfer: UserInfo

1254 from_date: date

1255 to_date: date

1256 view_link: str

1257

1258 @property

1259 def string_key_base(self) -> str:

1260 return "host_requests.reminder"

1261

1262 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1263 return self._localize(loc_context, ".subject", {"surfer_name": self.surfer.name})

1264

1265 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1266 builder = self._body_builder(loc_context)

1267 builder.para(".body")

1268 builder.user(

1269 self.surfer,

1270 "host_requests.generic.date_range",

1271 {

1272 "from_date": _localize_host_request_date(self.from_date, loc_context),

1273 "to_date": _localize_host_request_date(self.to_date, loc_context),

1274 },

1275 )

1276 builder.action(self.view_link, "host_requests.generic.view_action")

1277 builder.para(_do_not_reply_request_string_key)

1278 return builder.build()

1279

1280 @classmethod

1281 def from_notification(cls, data: notification_data_pb2.HostRequestReminder, *, user_name: str) -> Self:

1282 return cls(

1283 user_name,

1284 surfer=UserInfo.from_protobuf(data.surfer),

1285 from_date=date.fromisoformat(data.host_request.from_date),

1286 to_date=date.fromisoformat(data.host_request.to_date),

1287 view_link=urls.host_request(host_request_id=data.host_request.host_request_id),

1288 )

1289

1290 @classmethod

1291 def test_instances(cls) -> list[Self]:

1292 return [

1293 cls(

1294 user_name="Alice",

1295 surfer=UserInfo.dummy_bob(),

1296 from_date=date(2025, 6, 1),

1297 to_date=date(2025, 6, 7),

1298 view_link="https://couchers.org/requests/123",

1299 )

1300 ]

1301

1302

1303@dataclass(kw_only=True, slots=True)

1304class HostRequestMessageEmail(EmailBase):

1305 """Sent when a user sends a message in an existing host request."""

1306

1307 other_user: UserInfo

1308 from_date: date

1309 to_date: date

1310 text: str

1311 from_host: bool

1312 view_link: str

1313

1314 @property

1315 def string_key_base(self) -> str:

1316 variant = "from_host" if self.from_host else "from_surfer"

1317 return f"host_requests.message.{variant}"

1318

1319 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1320 return self._localize(loc_context, ".subject", {"other_name": self.other_user.name})

1321

1322 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

1323 return self.text

1324

1325 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1326 builder = self._body_builder(loc_context)

1327 builder.para(".body", {"other_name": self.other_user.name})

1328 builder.user(

1329 self.other_user,

1330 "host_requests.generic.date_range",

1331 {

1332 "from_date": _localize_host_request_date(self.from_date, loc_context),

1333 "to_date": _localize_host_request_date(self.to_date, loc_context),

1334 },

1335 )

1336 builder.quote(self.text, markdown=False)

1337 builder.action(self.view_link, "host_requests.generic.view_action")

1338 builder.para(_do_not_reply_request_string_key)

1339 return builder.build()

1340

1341 @classmethod

1342 def from_notification(cls, data: notification_data_pb2.HostRequestMessage, *, user_name: str) -> Self:

1343 return cls(

1344 user_name,

1345 other_user=UserInfo.from_protobuf(data.user),

1346 from_date=date.fromisoformat(data.host_request.from_date),

1347 to_date=date.fromisoformat(data.host_request.to_date),

1348 text=data.text,

1349 from_host=not data.am_host,

1350 view_link=urls.host_request(host_request_id=data.host_request.host_request_id),

1351 )

1352

1353 @classmethod

1354 def test_instances(cls) -> list[Self]:

1355 prototype = cls(

1356 user_name="Alice",

1357 other_user=UserInfo.dummy_bob(),

1358 from_date=date(2025, 6, 1),

1359 to_date=date(2025, 6, 7),

1360 text="Looking forward to it, see you soon!",

1361 from_host=True,

1362 view_link="https://couchers.org/requests/123",

1363 )

1364 return [replace(prototype, from_host=True), replace(prototype, from_host=False)]

1365

1366

1367@dataclass(kw_only=True, slots=True)

1368class HostRequestMissedMessagesEmail(EmailBase):

1369 """Sent as a digest when a user has missed messages in a host request."""

1370

1371 other_user: UserInfo

1372 from_date: date

1373 to_date: date

1374 from_host: bool

1375 view_link: str

1376

1377 @property

1378 def string_key_base(self) -> str:

1379 variant = "from_host" if self.from_host else "from_surfer"

1380 return f"host_requests.missed_messages.{variant}"

1381

1382 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1383 return self._localize(loc_context, ".subject", {"other_name": self.other_user.name})

1384

1385 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1386 builder = self._body_builder(loc_context)

1387 builder.para(".body", {"other_name": self.other_user.name})

1388 builder.user(

1389 self.other_user,

1390 "host_requests.generic.date_range",

1391 {

1392 "from_date": _localize_host_request_date(self.from_date, loc_context),

1393 "to_date": _localize_host_request_date(self.to_date, loc_context),

1394 },

1395 )

1396 builder.action(self.view_link, "host_requests.generic.view_action")

1397 builder.para(_do_not_reply_request_string_key)

1398 return builder.build()

1399

1400 @classmethod

1401 def from_notification(cls, data: notification_data_pb2.HostRequestMissedMessages, *, user_name: str) -> Self:

1402 return cls(

1403 user_name,

1404 other_user=UserInfo.from_protobuf(data.user),

1405 from_date=date.fromisoformat(data.host_request.from_date),

1406 to_date=date.fromisoformat(data.host_request.to_date),

1407 from_host=not data.am_host,

1408 view_link=urls.host_request(host_request_id=data.host_request.host_request_id),

1409 )

1410

1411 @classmethod

1412 def test_instances(cls) -> list[Self]:

1413 prototype = cls(

1414 user_name="Alice",

1415 other_user=UserInfo.dummy_bob(),

1416 from_date=date(2025, 6, 1),

1417 to_date=date(2025, 6, 7),

1418 from_host=True,

1419 view_link="https://couchers.org/requests/123",

1420 )

1421 return [replace(prototype, from_host=True), replace(prototype, from_host=False)]

1422

1423

1424@dataclass(kw_only=True, slots=True)

1425class HostRequestStatusChangedEmail(EmailBase):

1426 """Sent when a host request is accepted, declined, confirmed, or cancelled."""

1427

1428 other_user: UserInfo

1429 from_date: date

1430 to_date: date

1431 new_status: conversations_pb2.HostRequestStatus.ValueType

1432 view_link: str

1433

1434 @property

1435 def string_key_base(self) -> str:

1436 base_key = "host_requests.status_changed"

1437 match self.new_status:

1438 case conversations_pb2.HOST_REQUEST_STATUS_ACCEPTED:

1439 return f"{base_key}.accepted_by_host"

1440 case conversations_pb2.HOST_REQUEST_STATUS_REJECTED:

1441 return f"{base_key}.declined_by_host"

1442 case conversations_pb2.HOST_REQUEST_STATUS_CONFIRMED:

1443 return f"{base_key}.confirmed_by_surfer"

1444 case conversations_pb2.HOST_REQUEST_STATUS_CANCELLED: 1444 ↛ 1446line 1444 didn't jump to line 1446 because the pattern on line 1444 always matched

1445 return f"{base_key}.cancelled_by_surfer"

1446 case _:

1447 raise ValueError(f"Unexpected host request status: {self.new_status}")

1448

1449 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1450 return self._localize(loc_context, ".subject", {"other_name": self.other_user.name})

1451

1452 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1453 builder = self._body_builder(loc_context)

1454 builder.para(".body", {"other_name": self.other_user.name})

1455 builder.user(

1456 self.other_user,

1457 "host_requests.generic.date_range",

1458 {

1459 "from_date": _localize_host_request_date(self.from_date, loc_context),

1460 "to_date": _localize_host_request_date(self.to_date, loc_context),

1461 },

1462 )

1463 builder.action(self.view_link, "host_requests.generic.view_action")

1464 builder.para(_do_not_reply_request_string_key)

1465 return builder.build()

1466

1467 @classmethod

1468 def from_notification(

1469 cls,

1470 data: notification_data_pb2.HostRequestAccept

1471 | notification_data_pb2.HostRequestReject

1472 | notification_data_pb2.HostRequestConfirm

1473 | notification_data_pb2.HostRequestCancel,

1474 *,

1475 user_name: str,

1476 ) -> Self:

1477 other_user: UserInfo

1478 new_status: conversations_pb2.HostRequestStatus.ValueType

1479 match data:

1480 case notification_data_pb2.HostRequestAccept():

1481 other_user = UserInfo.from_protobuf(data.host)

1482 new_status = conversations_pb2.HostRequestStatus.HOST_REQUEST_STATUS_ACCEPTED

1483 case notification_data_pb2.HostRequestReject(): 1483 ↛ 1484line 1483 didn't jump to line 1484 because the pattern on line 1483 never matched

1484 other_user = UserInfo.from_protobuf(data.host)

1485 new_status = conversations_pb2.HostRequestStatus.HOST_REQUEST_STATUS_REJECTED

1486 case notification_data_pb2.HostRequestConfirm():

1487 other_user = UserInfo.from_protobuf(data.surfer)

1488 new_status = conversations_pb2.HostRequestStatus.HOST_REQUEST_STATUS_CONFIRMED

1489 case notification_data_pb2.HostRequestCancel(): 1489 ↛ 1492line 1489 didn't jump to line 1492 because the pattern on line 1489 always matched

1490 other_user = UserInfo.from_protobuf(data.surfer)

1491 new_status = conversations_pb2.HostRequestStatus.HOST_REQUEST_STATUS_CANCELLED

1492 case _:

1493 # Enable mypy's exhaustiveness checking

1494 assert_never("Unexpected host request status changed notification data type.")

1495

1496 return cls(

1497 user_name,

1498 other_user=other_user,

1499 from_date=date.fromisoformat(data.host_request.from_date),

1500 to_date=date.fromisoformat(data.host_request.to_date),

1501 new_status=new_status,

1502 view_link=urls.host_request(host_request_id=data.host_request.host_request_id),

1503 )

1504

1505 @classmethod

1506 def test_instances(cls) -> list[Self]:

1507 prototype = cls(

1508 user_name="Alice",

1509 other_user=UserInfo.dummy_bob(),

1510 from_date=date(2025, 6, 1),

1511 to_date=date(2025, 6, 7),

1512 new_status=conversations_pb2.HOST_REQUEST_STATUS_ACCEPTED,

1513 view_link="https://couchers.org/requests/123",

1514 )

1515 return [

1516 replace(prototype, new_status=conversations_pb2.HOST_REQUEST_STATUS_ACCEPTED),

1517 replace(prototype, new_status=conversations_pb2.HOST_REQUEST_STATUS_REJECTED),

1518 replace(prototype, new_status=conversations_pb2.HOST_REQUEST_STATUS_CONFIRMED),

1519 replace(prototype, new_status=conversations_pb2.HOST_REQUEST_STATUS_CANCELLED),

1520 ]

1521

1522

1523@dataclass(kw_only=True, slots=True)

1524class HostReferenceReceivedEmail(EmailBase):

1525 """Sent to a user when they receive a reference from a past host or surfer."""

1526

1527 from_user: UserInfo

1528 text: str | None # None if hidden because receiver hasn't written their reference yet.

1529 surfed: bool # True if I was the surfer, False if I was the host

1530 leave_reference_url: str

1531

1532 @property

1533 def string_key_base(self) -> str:

1534 return "references.received"

1535

1536 @property

1537 def string_role_subkey(self) -> str:

1538 return "surfed" if self.surfed else "hosted"

1539

1540 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1541 return self._localize(loc_context, ".subject", {"name": self.from_user.name})

1542

1543 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

1544 return self.text

1545

1546 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1547 builder = self._body_builder(loc_context)

1548 builder.para(f".{self.string_role_subkey}.body", {"name": self.from_user.name})

1549 builder.user(self.from_user)

1550 if self.text:

1551 builder.para(".before_quote")

1552 builder.quote(self.text, markdown=False)

1553 builder.action(urls.profile_references_link(), ".view_action")

1554 else:

1555 builder.para(".reciprocate_encouragement", {"name": self.from_user.name})

1556 builder.action(self.leave_reference_url, "references.write_action", {"name": self.from_user.name})

1557 return builder.build()

1558

1559 @classmethod

1560 def from_notification(

1561 cls, data: notification_data_pb2.ReferenceReceiveHostRequest, *, user_name: str, surfed: bool

1562 ) -> Self:

1563 return cls(

1564 user_name=user_name,

1565 from_user=UserInfo.from_protobuf(data.from_user),

1566 text=data.text or None,

1567 surfed=surfed,

1568 leave_reference_url=urls.leave_reference_link(

1569 reference_type="surfed" if surfed else "hosted",

1570 to_user_id=str(data.from_user.user_id),

1571 host_request_id=str(data.host_request_id),

1572 ),

1573 )

1574

1575 @classmethod

1576 def test_instances(cls) -> list[Self]:

1577 prototype = cls(

1578 user_name="Alice",

1579 from_user=UserInfo.dummy_bob(),

1580 text="Alice was a fantastic guest!",

1581 surfed=True,

1582 leave_reference_url="https://couchers.org/leave-reference/123",

1583 )

1584 return [

1585 replace(prototype, surfed=True, text="Alice was a fantastic guest!"),

1586 replace(prototype, surfed=True, text=None),

1587 replace(prototype, surfed=False, text="Bob was a wonderful host!"),

1588 replace(prototype, surfed=False, text=None),

1589 ]

1590

1591

1592@dataclass(kw_only=True, slots=True)

1593class HostReferenceReminderEmail(EmailBase):

1594 """Sent as a reminder to write a reference after a stay."""

1595

1596 other_user: UserInfo

1597 days_left: int

1598 surfed: bool # True if I was the surfer, False if I was the host

1599 leave_reference_url: str

1600

1601 @property

1602 def string_key_base(self) -> str:

1603 return "references.reminder"

1604

1605 @property

1606 def string_role_subkey(self) -> str:

1607 return "surfed" if self.surfed else "hosted"

1608

1609 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1610 return self._localize(

1611 loc_context,

1612 ".subject_days",

1613 {"name": self.other_user.name, "count": self.days_left},

1614 )

1615

1616 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1617 builder = self._body_builder(loc_context)

1618 builder.para(f".{self.string_role_subkey}.body_days", {"name": self.other_user.name, "count": self.days_left})

1619 builder.para(".no_meeting_note", {"name": self.other_user.name})

1620 builder.user(self.other_user)

1621 builder.action(

1622 self.leave_reference_url,

1623 "references.write_action",

1624 {"name": self.other_user.name},

1625 )

1626 builder.para(".via_messaging_note")

1627 builder.para(".importance_note")

1628 builder.para(".visibility_note")

1629 return builder.build()

1630

1631 @classmethod

1632 def from_notification(cls, data: notification_data_pb2.ReferenceReminder, *, user_name: str, surfed: bool) -> Self:

1633 return cls(

1634 user_name=user_name,

1635 other_user=UserInfo.from_protobuf(data.other_user),

1636 days_left=data.days_left,

1637 surfed=surfed,

1638 leave_reference_url=urls.leave_reference_link(

1639 reference_type="surfed" if surfed else "hosted",

1640 to_user_id=str(data.other_user.user_id),

1641 host_request_id=str(data.host_request_id),

1642 ),

1643 )

1644

1645 @classmethod

1646 def test_instances(cls) -> list[Self]:

1647 prototype = cls(

1648 user_name="Alice",

1649 other_user=UserInfo.dummy_bob(),

1650 days_left=7,

1651 surfed=True,

1652 leave_reference_url="https://couchers.org/leave-reference/123",

1653 )

1654 return [replace(prototype, surfed=True), replace(prototype, surfed=False)]

1655

1656

1657@dataclass(kw_only=True, slots=True)

1658class ModeratorNoteEmail(EmailBase):

1659 """Sent to a user to notify them they have received a moderator note."""

1660

1661 @property

1662 def string_key_base(self) -> str:

1663 return "moderator_note"

1664

1665 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1666 builder = self._body_builder(loc_context)

1667 builder.para(".body")

1668 return builder.build()

1669

1670 @classmethod

1671 def test_instances(cls) -> list[Self]:

1672 return [cls(user_name="Alice")]

1673

1674

1675@dataclass(kw_only=True, slots=True)

1676class NewBlogPostEmail(EmailBase):

1677 """Sent to notify users of a new blog post."""

1678

1679 title: str

1680 blurb: str

1681 url: str

1682

1683 @property

1684 def string_key_base(self) -> str:

1685 return "new_blog_post"

1686

1687 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1688 return self._localize(loc_context, ".subject", {"title": self.title})

1689

1690 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

1691 return self.blurb

1692

1693 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1694 builder = self._body_builder(loc_context)

1695 builder.para(".intro")

1696 builder.para(".post_title", {"title": self.title})

1697 builder.quote(self.blurb, markdown=False)

1698 builder.action(self.url, ".read_action")

1699 return builder.build()

1700

1701 @classmethod

1702 def from_notification(cls, data: notification_data_pb2.GeneralNewBlogPost, *, user_name: str) -> Self:

1703 return cls(user_name=user_name, title=data.title, blurb=data.blurb, url=data.url)

1704

1705 @classmethod

1706 def test_instances(cls) -> list[Self]:

1707 return [

1708 cls(

1709 user_name="Alice",

1710 title="Exciting new features on Couchers.org",

1711 blurb="We've launched some great new features including improved messaging and event discovery.",

1712 url="https://couchers.org/blog/2025/01/01/new-features",

1713 )

1714 ]

1715

1716

1717@dataclass(kw_only=True, slots=True)

1718class OnboardingReminderEmail(EmailBase):

1719 """Onboarding email sent to new users; initial=True for the first email, False for the second."""

1720

1721 initial: bool

1722

1723 @property

1724 def string_key_base(self) -> str:

1725 return f"onboarding_reminder.{'initial' if self.initial else 'follow_up'}"

1726

1727 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1728 builder = self._body_builder(loc_context, standard_closing=False)

1729 edit_profile_url = urls.edit_profile_link()

1730 if self.initial:

1731 builder.para(".welcome")

1732 builder.para(".early_user_role")

1733 builder.para(".fill_in_profile")

1734 builder.para(".edit_profile_prompt")

1735 builder.action(edit_profile_url, ".edit_profile_action")

1736 builder.para(".share_with_friends")

1737 builder.para(".link", {"url": urls.app_link()})

1738 builder.para(".platform_under_development")

1739 builder.para(".thanks_for_joining")

1740 builder.para(".signature")

1741 else:

1742 builder.para(".intro")

1743 builder.para(".fill_in_profile")

1744 builder.action(edit_profile_url, ".edit_profile_action")

1745 builder.para(".no_empty_accounts")

1746 builder.para(".profile_importance")

1747 builder.para(".signature")

1748 return builder.build()

1749

1750 @classmethod

1751 def test_instances(cls) -> list[Self]:

1752 prototype = cls(user_name="Alice", initial=True)

1753 return [replace(prototype, initial=True), replace(prototype, initial=False)]

1754

1755

1756@dataclass(kw_only=True, slots=True)

1757class PasswordChangedEmail(EmailBase):

1758 """Sent to a user to notify them that their login password was changed."""

1759

1760 @property

1761 def string_key_base(self) -> str:

1762 return "password_changed"

1763

1764 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1765 builder = self._body_builder(loc_context, security_warning=True)

1766 builder.para(".body")

1767 return builder.build()

1768

1769 @classmethod

1770 def test_instances(cls) -> list[Self]:

1771 return [cls(user_name="Alice")]

1772

1773

1774@dataclass(kw_only=True, slots=True)

1775class PasswordResetCompletedEmail(EmailBase):

1776 """Sent to a user to confirm their password was successfully reset."""

1777

1778 @property

1779 def string_key_base(self) -> str:

1780 return "password_reset.completed"

1781

1782 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1783 builder = self._body_builder(loc_context, security_warning=True)

1784 builder.para(".body")

1785 return builder.build()

1786

1787 @classmethod

1788 def test_instances(cls) -> list[Self]:

1789 return [cls(user_name="Alice")]

1790

1791

1792@dataclass(kw_only=True, slots=True)

1793class PasswordResetStartedEmail(EmailBase):

1794 """Sent to a user with a link to complete their password reset."""

1795

1796 password_reset_link: str

1797

1798 @property

1799 def string_key_base(self) -> str:

1800 return "password_reset.started"

1801

1802 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1803 builder = self._body_builder(loc_context, security_warning=True)

1804 builder.para(".request_description")

1805 builder.para(".confirmation_instructions")

1806 builder.action(self.password_reset_link, ".reset_action")

1807 return builder.build()

1808

1809 @classmethod

1810 def from_notification(cls, data: notification_data_pb2.PasswordResetStart, *, user_name: str) -> Self:

1811 return cls(

1812 user_name=user_name,

1813 password_reset_link=urls.password_reset_link(password_reset_token=data.password_reset_token),

1814 )

1815

1816 @classmethod

1817 def test_instances(cls) -> list[Self]:

1818 return [cls(user_name="Alice", password_reset_link="https://couchers.org/reset-password")]

1819

1820

1821@dataclass(kw_only=True, slots=True)

1822class PhoneNumberChangeEmail(EmailBase):

1823 """Sent to a user to notify them that their phone number verification status was changed."""

1824

1825 new_phone_number: str

1826 completed: bool # False = started, True = completed

1827

1828 @property

1829 def string_key_base(self) -> str:

1830 return "phone_number_verification.verified" if self.completed else "phone_number_verification.started"

1831

1832 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1833 builder = self._body_builder(loc_context, security_warning=True)

1834 builder.para(".body", {"phone_number": format_phone_number(self.new_phone_number)})

1835 return builder.build()

1836

1837 @classmethod

1838 def from_change_notification(cls, data: notification_data_pb2.PhoneNumberChange, *, user_name: str) -> Self:

1839 return cls(user_name=user_name, new_phone_number=data.phone, completed=False)

1840

1841 @classmethod

1842 def from_verify_notification(cls, data: notification_data_pb2.PhoneNumberVerify, *, user_name: str) -> Self:

1843 return cls(user_name=user_name, new_phone_number=data.phone, completed=True)

1844

1845 @classmethod

1846 def test_instances(cls) -> list[Self]:

1847 prototype = cls(

1848 user_name="Alice",

1849 new_phone_number="+12223334444",

1850 completed=False,

1851 )

1852 return [replace(prototype, completed=False), replace(prototype, completed=True)]

1853

1854

1855@dataclass(kw_only=True, slots=True)

1856class PostalVerificationFailedEmail(EmailBase):

1857 """Sent to a user when their postal verification attempt has failed."""

1858

1859 reason: notification_data_pb2.PostalVerificationFailReason.ValueType

1860

1861 @property

1862 def string_key_base(self) -> str:

1863 return "postal_verification.failed"

1864

1865 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1866 builder = self._body_builder(loc_context, security_warning=True)

1867 match self.reason:

1868 case notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_CODE_EXPIRED:

1869 reason_string_key = ".reason_code_expired"

1870 case notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_TOO_MANY_ATTEMPTS:

1871 reason_string_key = ".reason_too_many_attempts"

1872 case _:

1873 reason_string_key = ".reason_unknown"

1874 builder.para(reason_string_key)

1875 return builder.build()

1876

1877 @classmethod

1878 def from_notification(cls, data: notification_data_pb2.PostalVerificationFailed, *, user_name: str) -> Self:

1879 return cls(user_name=user_name, reason=data.reason)

1880

1881 @classmethod

1882 def test_instances(cls) -> list[Self]:

1883 prototype = cls(

1884 user_name="Alice",

1885 reason=notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_CODE_EXPIRED,

1886 )

1887 return [

1888 replace(prototype, reason=notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_CODE_EXPIRED),

1889 replace(prototype, reason=notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_TOO_MANY_ATTEMPTS),

1890 replace(prototype, reason=notification_data_pb2.POSTAL_VERIFICATION_FAIL_REASON_UNKNOWN),

1891 ]

1892

1893

1894@dataclass(kw_only=True, slots=True)

1895class PostalVerificationPostcardSentEmail(EmailBase):

1896 """Sent to a user to notify them that their verification postcard has been sent."""

1897

1898 city: str

1899 country: str

1900

1901 @property

1902 def string_key_base(self) -> str:

1903 return "postal_verification.postcard_sent"

1904

1905 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1906 builder = self._body_builder(loc_context, security_warning=True)

1907 builder.para(".body", {"city": self.city, "country": self.country})

1908 return builder.build()

1909

1910 @classmethod

1911 def from_notification(cls, data: notification_data_pb2.PostalVerificationPostcardSent, *, user_name: str) -> Self:

1912 return cls(user_name=user_name, city=data.city, country=data.country)

1913

1914 @classmethod

1915 def test_instances(cls) -> list[Self]:

1916 return [cls(user_name="Alice", city="New York", country="United States")]

1917

1918

1919@dataclass(kw_only=True, slots=True)

1920class PostalVerificationSucceededEmail(EmailBase):

1921 """Sent to a user when their postal verification has succeeded."""

1922

1923 @property

1924 def string_key_base(self) -> str:

1925 return "postal_verification.succeeded"

1926

1927 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1928 builder = self._body_builder(loc_context, security_warning=True)

1929 builder.para(".body")

1930 return builder.build()

1931

1932 @classmethod

1933 def test_instances(cls) -> list[Self]:

1934 return [cls(user_name="Alice")]

1935

1936

1937@dataclass(kw_only=True, slots=True)

1938class SignupVerifyEmail(EmailBase):

1939 """Sent to a user to verify their email address."""

1940

1941 verify_url: str

1942

1943 @property

1944 def string_key_base(self) -> str:

1945 return "signup.verify"

1946

1947 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1948 return self._localize(loc_context, "signup.subject")

1949

1950 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1951 builder = self._body_builder(loc_context)

1952 builder.para(".thanks")

1953 builder.para(".instructions")

1954 builder.action(self.verify_url, ".confirm_action")

1955 builder.para("signup.closing")

1956 return builder.build()

1957

1958 @classmethod

1959 def test_instances(cls) -> list[Self]:

1960 return [cls(user_name="Alice", verify_url="https://example.com")]

1961

1962

1963@dataclass(kw_only=True, slots=True)

1964class SignupContinueEmail(EmailBase):

1965 """Sent to a user to ask them to continue the signup process."""

1966

1967 continue_url: str

1968

1969 @property

1970 def string_key_base(self) -> str:

1971 return "signup.continue"

1972

1973 def get_subject_line(self, loc_context: LocalizationContext) -> str:

1974 return self._localize(loc_context, "signup.subject")

1975

1976 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

1977 builder = self._body_builder(loc_context)

1978 builder.para(".request")

1979 builder.para(".instructions")

1980 builder.action(self.continue_url, ".continue_action")

1981 builder.para("signup.closing")

1982 builder.para(".ignore_if_unexpected")

1983 return builder.build()

1984

1985 @classmethod

1986 def test_instances(cls) -> list[Self]:

1987 return [cls(user_name="Alice", continue_url="https://example.com")]

1988

1989

1990@dataclass(kw_only=True, slots=True)

1991class StrongVerificationFailedEmail(EmailBase):

1992 """Sent to a user when their strong verification attempt has failed."""

1993

1994 reason: notification_data_pb2.SVFailReason.ValueType

1995

1996 @property

1997 def string_key_base(self) -> str:

1998 return "strong_verification.failed"

1999

2000 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

2001 builder = self._body_builder(loc_context, security_warning=True)

2002 match self.reason:

2003 case notification_data_pb2.SV_FAIL_REASON_WRONG_BIRTHDATE_OR_GENDER:

2004 reason_string_key = ".reason_wrong_birthdate_or_gender"

2005 case notification_data_pb2.SV_FAIL_REASON_NOT_A_PASSPORT:

2006 reason_string_key = ".reason_not_a_passport"

2007 case notification_data_pb2.SV_FAIL_REASON_DUPLICATE: 2007 ↛ 2009line 2007 didn't jump to line 2009 because the pattern on line 2007 always matched

2008 reason_string_key = ".reason_duplicate"

2009 case _:

2010 raise Exception("Shouldn't get here")

2011 builder.para(reason_string_key)

2012 return builder.build()

2013

2014 @classmethod

2015 def from_notification(cls, data: notification_data_pb2.VerificationSVFail, *, user_name: str) -> Self:

2016 return cls(user_name=user_name, reason=data.reason)

2017

2018 @classmethod

2019 def test_instances(cls) -> list[Self]:

2020 prototype = cls(

2021 user_name="Alice",

2022 reason=notification_data_pb2.SV_FAIL_REASON_NOT_A_PASSPORT,

2023 )

2024 return [

2025 replace(prototype, reason=notification_data_pb2.SV_FAIL_REASON_WRONG_BIRTHDATE_OR_GENDER),

2026 replace(prototype, reason=notification_data_pb2.SV_FAIL_REASON_NOT_A_PASSPORT),

2027 replace(prototype, reason=notification_data_pb2.SV_FAIL_REASON_DUPLICATE),

2028 ]

2029

2030

2031@dataclass(kw_only=True, slots=True)

2032class StrongVerificationSucceededEmail(EmailBase):

2033 """Sent to a user when their strong verification has succeeded."""

2034

2035 @property

2036 def string_key_base(self) -> str:

2037 return "strong_verification.succeeded"

2038

2039 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

2040 builder = self._body_builder(loc_context, security_warning=True)

2041 builder.para(".success_message")

2042 builder.para(".thanks_message")

2043 builder.para(".cost_explanation")

2044 builder.para(".donation_request")

2045 donate_link = urls.donation_url() + "?utm_source=strong-verification-email"

2046 builder.action(donate_link, ".donate_action")

2047 return builder.build()

2048

2049 @classmethod

2050 def test_instances(cls) -> list[Self]:

2051 return [cls(user_name="Alice")]

2052

2053

2054@dataclass(kw_only=True, slots=True)

2055class ThreadReplyEmail(EmailBase):

2056 """Sent to a user when someone replies in a comment thread they participated in."""

2057

2058 author: UserInfo

2059 parent_context: str # Title of the event or discussion being replied in

2060 markdown_text: str

2061 view_link: str

2062

2063 @property

2064 def string_key_base(self) -> str:

2065 return "thread_reply"

2066

2067 def get_subject_line(self, loc_context: LocalizationContext) -> str:

2068 return self._localize(

2069 loc_context, ".subject", {"author": self.author.name, "parent_context": self.parent_context}

2070 )

2071

2072 def get_preview_line(self, loc_context: LocalizationContext) -> str | None:

2073 return markdown_to_plaintext(self.markdown_text)

2074

2075 def get_body_blocks(self, loc_context: LocalizationContext) -> list[EmailBlock]:

2076 builder = self._body_builder(loc_context)

2077 builder.para(".body", {"author": self.author.name, "parent_context": self.parent_context})

2078 builder.user(self.author)

2079 builder.quote(self.markdown_text, markdown=True)

2080 builder.action(self.view_link, ".view_action")

2081 return builder.build()

2082

2083 @classmethod

2084 def from_notification(cls, data: notification_data_pb2.ThreadReply, *, user_name: str) -> Self:

2085 parent = data.WhichOneof("reply_parent")

2086 if parent == "event":

2087 parent_context = data.event.title

2088 view_link = urls.event_link(occurrence_id=data.event.event_id, slug=data.event.slug)

2089 elif parent == "discussion": 2089 ↛ 2093line 2089 didn't jump to line 2093 because the condition on line 2089 was always true

2090 parent_context = data.discussion.title

2091 view_link = urls.discussion_link(discussion_id=data.discussion.discussion_id, slug=data.discussion.slug)

2092 else:

2093 raise Exception("Can only do replies to events and discussions")

2094 return cls(

2095 user_name=user_name,

2096 author=UserInfo.from_protobuf(data.author),

2097 parent_context=parent_context,

2098 markdown_text=data.reply.content,

2099 view_link=view_link,

2100 )

2101

2102 @classmethod

2103 def test_instances(cls) -> list[Self]:

2104 return [

2105 cls(

2106 user_name="Alice",

2107 author=UserInfo.dummy_bob(),

2108 parent_context="Best hiking trails near Berlin",

2109 markdown_text="I agree, the Grünewald is **amazing**!",

2110 view_link="https://couchers.org/discussions/123",

2111 )

2112 ]

2113

2114

2115def _localize_host_request_date(value: date, loc_context: LocalizationContext) -> str:

2116 return loc_context.localize_date(value, with_year=False, with_day_of_week=True)