src/snack_and_lift/application/booking.py

@@ -1,8 +1,9 @@
 """@file booking.py
-@brief Lecture steps 3 and 4: book the next Tuesday 6pm class and report its state.
+@brief Lecture steps 3 to 6: book the Tuesday and Thursday 6pm classes and report their state.
 """
 
 import logging
+from collections.abc import Callable
 
 from snack_and_lift import constants
 from snack_and_lift.application.ports import GymPort
@@ -13,6 +14,7 @@ from snack_and_lift.domain.rules import (
     OUTCOME_OF_ACTION,
     decide_outcome_action,
     find_next_class,
+    find_target_classes,
     format_outcome,
 )
 
@@ -51,8 +53,33 @@ def book_next_tuesday(gym: GymPort) -> ClassResult | None:
         logger.warning(
             constants.MESSAGE_NO_CLASS_FOUND.format(
                 weekday=constants.NEXT_CLASS_WEEKDAY,
-                time=f"{constants.TARGET_HOUR:02d}:{constants.TARGET_MINUTE:02d}",
+                time=constants.TARGET_TIME_TEXT,
             )
         )
         return None
     return book_class(gym, card)
+
+
+def book_target_classes(
+    gym: GymPort, on_result: Callable[[ClassResult], None] | None = None
+) -> list[ClassResult]:
+    """@brief Book every Tuesday and Thursday class at the target time, in page order.
+
+    The cards are listed once; each class is found again by its id when it is pressed.
+
+    @param gym The gym site.
+    @param on_result Called after each class was handled, for example to take a screenshot.
+    @return What happened to each class; empty when the schedule has none.
+    @exception GymError The page could not be read or a booking failed.
+    """
+    cards = find_target_classes(gym.list_class_cards())
+    if not cards:
+        logger.warning(constants.MESSAGE_NO_TARGET_CLASSES.format(time=constants.TARGET_TIME_TEXT))
+        return []
+    results: list[ClassResult] = []
+    for card in cards:
+        result = book_class(gym, card)
+        results.append(result)
+        if on_result is not None:
+            on_result(result)
+    return results

src/snack_and_lift/cli.py

@@ -10,11 +10,13 @@ from collections.abc import Callable, Sequence
 from pathlib import Path
 
 from snack_and_lift import constants
-from snack_and_lift.application.booking import book_next_tuesday
+from snack_and_lift.application.booking import book_next_tuesday, book_target_classes
 from snack_and_lift.application.credentials import Credentials, load_credentials
 from snack_and_lift.application.ports import GymPort
 from snack_and_lift.application.session import login
 from snack_and_lift.domain.errors import GymError, LoginFailedError, MissingCredentialsError
+from snack_and_lift.domain.models import ClassResult
+from snack_and_lift.domain.report import format_detail_list, format_summary
 from snack_and_lift.infrastructure.browser import create_driver, default_profile_dir
 from snack_and_lift.infrastructure.console_recorder import ConsoleRecorder
 from snack_and_lift.infrastructure.selenium_gym import SeleniumGym
@@ -69,6 +71,11 @@ def parse_args(argv: Sequence[str] | None = None) -> argparse.Namespace:
         default=None,
         help="save a screenshot after each step into this folder",
     )
+    parser.add_argument(
+        "--first-tuesday-only",
+        action="store_true",
+        help="book only the next Tuesday 6pm class (lecture steps 3 and 4)",
+    )
     args = parser.parse_args(argv)
     if args.keep_open is None:
         args.keep_open = not args.headless
@@ -95,10 +102,26 @@ def _save_step(gym: GymPort, screenshot_dir: Path | None, name: str) -> None:
         gym.save_screenshot(screenshot_dir / name)
 
 
+def _save_console(gym: GymPort, screenshot_dir: Path | None, text: str, name: str) -> None:
+    """@brief Save console text as an image when a folder was asked for.
+
+    @param gym The gym site.
+    @param screenshot_dir The folder, or None for no screenshots.
+    @param text The console text to draw.
+    @param name The file name.
+    """
+    if screenshot_dir is not None:
+        gym.save_text_screenshot(text, screenshot_dir / name)
+
+
 def _run(
     gym: GymPort, args: argparse.Namespace, recorder: ConsoleRecorder, credentials: Credentials
 ) -> None:
-    """@brief Open the site, log in and book the next Tuesday class, saving the step images.
+    """@brief Open the site, log in and book the classes, saving the step images.
+
+    Books every Tuesday and Thursday 6pm class and logs the summary and the detailed list;
+    with `--first-tuesday-only` it books the next Tuesday class only.
+
 
     @param gym The gym site.
     @param args The parsed options.
@@ -110,10 +133,29 @@ def _run(
     _save_step(gym, args.screenshot_dir, "step-1.png")
     login(gym, credentials)
     _save_step(gym, args.screenshot_dir, "step-2.png")
+    if args.first_tuesday_only:
         book_next_tuesday(gym)
         _save_step(gym, args.screenshot_dir, constants.SCREENSHOT_STEP_3)
-    if args.screenshot_dir is not None:
+        _save_console(gym, args.screenshot_dir, recorder.text, constants.SCREENSHOT_STEP_4)
-        gym.save_text_screenshot(recorder.text, args.screenshot_dir / constants.SCREENSHOT_STEP_4)
+        return
+    window_saved = False
+
+    def save_window_once(_: ClassResult) -> None:
+        nonlocal window_saved
+        if not window_saved:
+            _save_step(gym, args.screenshot_dir, constants.SCREENSHOT_STEP_3)
+            window_saved = True
+
+    results = book_target_classes(gym, save_window_once)
+    if not window_saved:
+        _save_step(gym, args.screenshot_dir, constants.SCREENSHOT_STEP_3)
+    _save_console(gym, args.screenshot_dir, recorder.text, constants.SCREENSHOT_STEP_4)
+    summary = format_summary(results)
+    logger.info("%s", summary)
+    _save_console(gym, args.screenshot_dir, summary, constants.SCREENSHOT_STEP_5)
+    detail = format_detail_list(results)
+    logger.info("%s", detail)
+    _save_console(gym, args.screenshot_dir, f"{summary}\n{detail}", constants.SCREENSHOT_STEP_6)
 
 
 def main(

src/snack_and_lift/constants.py

@@ -112,9 +112,35 @@ MESSAGE_ALREADY_BOOKED: Final[str] = "✓ Already booked: {name} on {day}"
 MESSAGE_ALREADY_WAITLISTED: Final[str] = "✓ Already on waitlist: {name} on {day}"
 MESSAGE_NO_CLASS_FOUND: Final[str] = "No {weekday} class at {time} found on the schedule"
 
-## File names of the screenshots of lecture steps 3 and 4.
+## Logged when the schedule has no class on a target weekday at the target time.
+MESSAGE_NO_TARGET_CLASSES: Final[str] = (
+    "No Tuesday or Thursday class at {time} found on the schedule"
+)
+
+## Time of the target classes as written in messages (24-hour clock).
+TARGET_TIME_TEXT: Final[str] = f"{TARGET_HOUR:02d}:{TARGET_MINUTE:02d}"
+
+## Lines of the booking summary (lecture step 5).
+SUMMARY_TITLE: Final[str] = "--- BOOKING SUMMARY ---"
+SUMMARY_NEW_BOOKINGS: Final[str] = "New bookings: {count}"
+SUMMARY_NEW_WAITLIST: Final[str] = "New waitlist entries: {count}"
+SUMMARY_ALREADY_DONE: Final[str] = "Already booked/waitlisted: {count}"
+SUMMARY_TOTAL: Final[str] = "Total Tuesday & Thursday 6pm classes: {count}"
+
+## Lines of the detailed class list (lecture step 6).
+DETAIL_TITLE: Final[str] = "--- DETAILED CLASS LIST ---"
+DETAIL_LINE: Final[str] = "  • [{tag}] {name} on {day}"
+DETAIL_NONE: Final[str] = "  No matching class found"
+DETAIL_TAG_NEW_BOOKING: Final[str] = "New Booking"
+DETAIL_TAG_NEW_WAITLIST: Final[str] = "New Waitlist"
+DETAIL_TAG_ALREADY_BOOKED: Final[str] = "Already Booked"
+DETAIL_TAG_ALREADY_WAITLISTED: Final[str] = "Already Waitlisted"
+
+## File names of the screenshots of lecture steps 3 to 6.
 SCREENSHOT_STEP_3: Final[str] = "step-3.png"
 SCREENSHOT_STEP_4: Final[str] = "step-4.png"
+SCREENSHOT_STEP_5: Final[str] = "step-5.png"
+SCREENSHOT_STEP_6: Final[str] = "step-6.png"
 
 ## `string.Template` of the page that renders console text for a screenshot.
 CONSOLE_PAGE_TEMPLATE: Final[str] = (

src/snack_and_lift/domain/report.py

@@ -0,0 +1,81 @@
+"""@file report.py
+@brief Lecture steps 5 and 6: count what the bot did and write the summary and the class list.
+"""
+
+from collections.abc import Sequence
+from dataclasses import dataclass
+
+from snack_and_lift import constants
+from snack_and_lift.domain.models import ClassResult, Outcome
+
+_TAG_OF_OUTCOME: dict[Outcome, str] = {
+    Outcome.NEW_BOOKING: constants.DETAIL_TAG_NEW_BOOKING,
+    Outcome.NEW_WAITLIST: constants.DETAIL_TAG_NEW_WAITLIST,
+    Outcome.ALREADY_BOOKED: constants.DETAIL_TAG_ALREADY_BOOKED,
+    Outcome.ALREADY_WAITLISTED: constants.DETAIL_TAG_ALREADY_WAITLISTED,
+}
+
+_ALREADY_DONE = (Outcome.ALREADY_BOOKED, Outcome.ALREADY_WAITLISTED)
+
+
+@dataclass(frozen=True, slots=True)
+class Counters:
+    """@brief How many classes ended in each way."""
+
+    new_bookings: int
+    new_waitlist: int
+    already_done: int
+
+    @property
+    def total(self) -> int:
+        """@brief The number of classes handled."""
+        return self.new_bookings + self.new_waitlist + self.already_done
+
+
+def count_results(results: Sequence[ClassResult]) -> Counters:
+    """@brief Count the results by outcome.
+
+    @param results What happened to each class.
+    @return The counters; already booked and already waitlisted count together.
+    """
+    return Counters(
+        new_bookings=sum(1 for r in results if r.outcome is Outcome.NEW_BOOKING),
+        new_waitlist=sum(1 for r in results if r.outcome is Outcome.NEW_WAITLIST),
+        already_done=sum(1 for r in results if r.outcome in _ALREADY_DONE),
+    )
+
+
+def format_summary(results: Sequence[ClassResult]) -> str:
+    """@brief Write the booking summary block.
+
+    @param results What happened to each class.
+    @return The block, starting with `--- BOOKING SUMMARY ---`, lines joined by newlines.
+    """
+    counters = count_results(results)
+    return "\n".join(
+        [
+            constants.SUMMARY_TITLE,
+            constants.SUMMARY_NEW_BOOKINGS.format(count=counters.new_bookings),
+            constants.SUMMARY_NEW_WAITLIST.format(count=counters.new_waitlist),
+            constants.SUMMARY_ALREADY_DONE.format(count=counters.already_done),
+            constants.SUMMARY_TOTAL.format(count=counters.total),
+        ]
+    )
+
+
+def format_detail_list(results: Sequence[ClassResult]) -> str:
+    """@brief Write the detailed class list, one line per class in the order handled.
+
+    @param results What happened to each class.
+    @return The block, starting with `--- DETAILED CLASS LIST ---`; says so when empty.
+    """
+    lines = [constants.DETAIL_TITLE]
+    if not results:
+        lines.append(constants.DETAIL_NONE)
+    lines.extend(
+        constants.DETAIL_LINE.format(
+            tag=_TAG_OF_OUTCOME[result.outcome], name=result.card.name, day=result.card.day_label
+        )
+        for result in results
+    )
+    return "\n".join(lines)

src/snack_and_lift/domain/rules.py

@@ -17,6 +17,7 @@ __all__ = [
     "Action",
     "decide_outcome_action",
     "find_next_class",
+    "find_target_classes",
     "format_outcome",
     "is_target_time",
     "parse_day_label",
@@ -116,6 +117,25 @@ def find_next_class(cards: Iterable[ClassCard], weekday: str) -> ClassCard | Non
     return None
 
 
+def find_target_classes(cards: Iterable[ClassCard]) -> list[ClassCard]:
+    """@brief Find every class on a target weekday at the target time, in page order.
+
+    The weekday is read from each card's day label; the position in the list means nothing.
+    Classes already completed are skipped.
+
+    @param cards The classes in the order of the page.
+    @return The classes to handle; empty when there is none.
+    @exception PageFormatError A day label or time text is not valid.
+    """
+    return [
+        card
+        for card in cards
+        if card.state is not ButtonState.COMPLETED
+        and card.weekday in constants.TARGET_WEEKDAYS
+        and is_target_time(card)
+    ]
+
+
 def decide_outcome_action(card: ClassCard) -> Action:
     """@brief Decide what to do from the state of the button.
 

tests/e2e/test_selenium_gym.py

@@ -8,7 +8,9 @@ from pathlib import Path
 
 import pytest
 
+from snack_and_lift.application.booking import book_target_classes
 from snack_and_lift.domain.errors import GymError, LoginFailedError
+from snack_and_lift.domain.models import Outcome
 from snack_and_lift.infrastructure.browser import create_driver
 from snack_and_lift.infrastructure.selenium_gym import SeleniumGym
 
@@ -110,3 +112,17 @@ def test_save_text_screenshot_writes_a_png_and_keeps_the_page(
 
     assert target.read_bytes().startswith(b"\x89PNG")
     assert schedule_gym.list_class_cards()
+
+
+def test_book_target_classes_books_every_tuesday_and_thursday_class(
+    schedule_gym: SeleniumGym,
+) -> None:
+    with pytest.raises(GymError, match="Network error"):
+        book_target_classes(schedule_gym)
+
+    results = book_target_classes(schedule_gym)
+
+    assert [(r.card.card_id, r.outcome) for r in results] == [
+        ("201", Outcome.ALREADY_WAITLISTED),
+        ("302", Outcome.NEW_BOOKING),
+    ]

tests/unit/test_booking.py

@@ -8,7 +8,11 @@ import pytest
 from tests.unit.fakes import FakeGym
 from tests.unit.test_models import make_card
 
-from snack_and_lift.application.booking import book_class, book_next_tuesday
+from snack_and_lift.application.booking import (
+    book_class,
+    book_next_tuesday,
+    book_target_classes,
+)
 from snack_and_lift.domain.errors import GymError, UnknownButtonError
 from snack_and_lift.domain.models import Outcome
 
@@ -95,3 +99,52 @@ def test_book_next_tuesday_logs_when_there_is_no_class(caplog: pytest.LogCapture
 
     assert "No Tue class at 18:00 found" in caplog.text
     assert gym.pressed == []
+
+
+def test_book_target_classes_handles_every_target_class_in_order() -> None:
+    cards = [
+        make_card("Today (Wed, Aug 13)", card_id="1"),
+        make_card("Tomorrow (Thu, Aug 14)", card_id="2"),
+        make_card("Tue, Aug 19", card_id="3", button_text="Join Waitlist"),
+        make_card("Thu, Aug 21", card_id="4", button_text="Booked"),
+        make_card("Tue, Aug 26", card_id="5", button_text="Waitlisted"),
+    ]
+    gym = FakeGym(cards=cards)
+
+    results = book_target_classes(gym)
+
+    assert [result.outcome for result in results] == [
+        Outcome.NEW_BOOKING,
+        Outcome.NEW_WAITLIST,
+        Outcome.ALREADY_BOOKED,
+        Outcome.ALREADY_WAITLISTED,
+    ]
+    assert gym.pressed == ["2", "3"]
+    assert gym.calls.count("list_class_cards") == 1
+
+
+def test_book_target_classes_calls_back_after_each_class() -> None:
+    gym = FakeGym(
+        cards=[make_card("Thu, Aug 14", card_id="1"), make_card("Tue, Aug 19", card_id="2")]
+    )
+    seen: list[str] = []
+
+    book_target_classes(gym, lambda result: seen.append(result.card.card_id))
+
+    assert seen == ["1", "2"]
+
+
+def test_book_target_classes_logs_when_there_is_none(caplog: pytest.LogCaptureFixture) -> None:
+    gym = FakeGym(cards=[make_card("Wed, Aug 13")])
+
+    with caplog.at_level(logging.INFO):
+        assert book_target_classes(gym) == []
+
+    assert "No Tuesday or Thursday class at 18:00 found" in caplog.text
+
+
+def test_book_target_classes_propagates_a_failing_class() -> None:
+    gym = FakeGym(cards=[make_card("Thu, Aug 14")], press_error="Network down")
+
+    with pytest.raises(GymError, match="Network down"):
+        book_target_classes(gym)

tests/unit/test_cli.py

@@ -2,6 +2,7 @@
 @brief The command line accepts its options and the entry point wires the use case.
 """
 
+import logging
 from pathlib import Path
 
 import pytest
@@ -67,7 +68,11 @@ def test_main_saves_both_screenshots_on_success(tmp_path: Path) -> None:
         tmp_path / "step-2.png",
         tmp_path / "step-3.png",
     ]
-    assert [path for _, path in gym.text_screenshots] == [tmp_path / "step-4.png"]
+    assert [path for _, path in gym.text_screenshots] == [
+        tmp_path / "step-4.png",
+        tmp_path / "step-5.png",
+        tmp_path / "step-6.png",
+    ]
     assert gym.calls == [
         "open_site",
         "save_screenshot",
@@ -76,6 +81,8 @@ def test_main_saves_both_screenshots_on_success(tmp_path: Path) -> None:
         "list_class_cards",
         "save_screenshot",
         "save_text_screenshot",
+        "save_text_screenshot",
+        "save_text_screenshot",
     ]
 
 
@@ -91,6 +98,94 @@ def test_main_books_the_class_and_draws_the_console_text(tmp_path: Path) -> None
     assert "✓ Successfully booked: Spin Class on Tue, Aug 19" in text
 
 
+@pytest.mark.usefixtures("credentials_env")
+def test_main_books_every_target_class_and_logs_the_report(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    gym = FakeGym(
+        cards=[
+            make_card("Tomorrow (Thu, Aug 14)", card_id="1"),
+            make_card("Fri, Aug 15", card_id="2"),
+            make_card("Tue, Aug 19", card_id="3", button_text="Join Waitlist"),
+        ]
+    )
+
+    with caplog.at_level(logging.INFO):
+        assert main([], lambda *_: gym) == 0
+
+    assert gym.pressed == ["1", "3"]
+    assert "New bookings: 1\nNew waitlist entries: 1\nAlready booked/waitlisted: 0" in caplog.text
+    assert "Total Tuesday & Thursday 6pm classes: 2" in caplog.text
+    assert "  • [New Booking] Spin Class on Tomorrow (Thu, Aug 14)" in caplog.text
+    assert "  • [New Waitlist] Spin Class on Tue, Aug 19" in caplog.text
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_main_saves_step_3_after_the_first_class_and_the_report_images(tmp_path: Path) -> None:
+    gym = FakeGym(
+        cards=[make_card("Thu, Aug 14", card_id="1"), make_card("Tue, Aug 19", card_id="2")]
+    )
+
+    assert main(["--screenshot-dir", str(tmp_path)], lambda *_: gym) == 0
+
+    assert gym.calls == [
+        "open_site",
+        "save_screenshot",
+        "log_in",
+        "save_screenshot",
+        "list_class_cards",
+        "press_class_button",
+        "save_screenshot",
+        "press_class_button",
+        "save_text_screenshot",
+        "save_text_screenshot",
+        "save_text_screenshot",
+    ]
+    assert gym.screenshots[-1] == tmp_path / "step-3.png"
+    (_, _), (step_5, _), (step_6, _) = gym.text_screenshots
+    assert step_5.startswith("--- BOOKING SUMMARY ---\nNew bookings: 2")
+    assert "--- DETAILED CLASS LIST ---" not in step_5
+    assert step_6.startswith(step_5)
+    assert "--- DETAILED CLASS LIST ---\n  • [New Booking] Spin Class on Thu, Aug 14" in step_6
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_main_logs_an_empty_report_without_target_classes(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    gym = FakeGym(cards=[make_card("Wed, Aug 13")])
+
+    with caplog.at_level(logging.INFO):
+        assert main([], lambda *_: gym) == 0
+
+    assert "Total Tuesday & Thursday 6pm classes: 0" in caplog.text
+    assert "No matching class found" in caplog.text
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_main_first_tuesday_only_books_one_class_and_no_report(
+    tmp_path: Path, caplog: pytest.LogCaptureFixture
+) -> None:
+    gym = FakeGym(
+        cards=[make_card("Thu, Aug 14", card_id="1"), make_card("Tue, Aug 19", card_id="2")]
+    )
+
+    with caplog.at_level(logging.INFO):
+        code = main(["--first-tuesday-only", "--screenshot-dir", str(tmp_path)], lambda *_: gym)
+
+    assert code == 0
+    assert gym.pressed == ["2"]
+    assert "BOOKING SUMMARY" not in caplog.text
+    assert [path.name for path in gym.screenshots] == ["step-1.png", "step-2.png", "step-3.png"]
+    assert [path.name for _, path in gym.text_screenshots] == ["step-4.png"]
+
+
+@pytest.mark.usefixtures("credentials_env")
+def test_first_tuesday_only_flag_is_read() -> None:
+    assert parse_args(["--first-tuesday-only"]).first_tuesday_only is True
+    assert parse_args([]).first_tuesday_only is False
+
+
 @pytest.mark.usefixtures("credentials_env")
 def test_main_returns_1_when_the_booking_fails() -> None:
     gym = FakeGym(cards=[make_card("Tue, Aug 19")], press_error="Network down")

tests/unit/test_report.py

@@ -0,0 +1,86 @@
+"""@file test_report.py
+@brief The counters, the booking summary and the detailed class list.
+"""
+
+from tests.unit.test_models import make_card
+
+from snack_and_lift.domain.models import ClassResult, Outcome
+from snack_and_lift.domain.report import (
+    Counters,
+    count_results,
+    format_detail_list,
+    format_summary,
+)
+
+
+def make_result(outcome: Outcome, day_label: str = "Tue, Aug 19") -> ClassResult:
+    return ClassResult(make_card(day_label), outcome)
+
+
+def test_count_results_groups_the_outcomes() -> None:
+    results = [
+        make_result(Outcome.NEW_BOOKING),
+        make_result(Outcome.NEW_BOOKING),
+        make_result(Outcome.NEW_WAITLIST),
+        make_result(Outcome.ALREADY_BOOKED),
+        make_result(Outcome.ALREADY_WAITLISTED),
+    ]
+
+    counters = count_results(results)
+
+    assert counters == Counters(new_bookings=2, new_waitlist=1, already_done=2)
+    assert counters.total == 5
+
+
+def test_count_results_is_zero_for_no_results() -> None:
+    assert count_results([]).total == 0
+
+
+def test_format_summary_matches_the_lecture() -> None:
+    results = [
+        make_result(Outcome.NEW_BOOKING, "Tomorrow (Thu, Aug 14)"),
+        make_result(Outcome.NEW_WAITLIST),
+    ]
+
+    assert format_summary(results) == (
+        "--- BOOKING SUMMARY ---\n"
+        "New bookings: 1\n"
+        "New waitlist entries: 1\n"
+        "Already booked/waitlisted: 0\n"
+        "Total Tuesday & Thursday 6pm classes: 2"
+    )
+
+
+def test_format_summary_for_no_results() -> None:
+    assert format_summary([]).endswith("Total Tuesday & Thursday 6pm classes: 0")
+
+
+def test_format_detail_list_matches_the_lecture() -> None:
+    results = [
+        make_result(Outcome.NEW_BOOKING, "Tomorrow (Thu, Aug 14)"),
+        make_result(Outcome.NEW_WAITLIST),
+    ]
+
+    assert format_detail_list(results) == (
+        "--- DETAILED CLASS LIST ---\n"
+        "  • [New Booking] Spin Class on Tomorrow (Thu, Aug 14)\n"
+        "  • [New Waitlist] Spin Class on Tue, Aug 19"
+    )
+
+
+def test_format_detail_list_tags_every_outcome() -> None:
+    results = [
+        make_result(Outcome.ALREADY_BOOKED),
+        make_result(Outcome.ALREADY_WAITLISTED),
+    ]
+
+    lines = format_detail_list(results).splitlines()
+
+    assert lines[1:] == [
+        "  • [Already Booked] Spin Class on Tue, Aug 19",
+        "  • [Already Waitlisted] Spin Class on Tue, Aug 19",
+    ]
+
+
+def test_format_detail_list_says_when_no_class_was_found() -> None:
+    assert format_detail_list([]) == "--- DETAILED CLASS LIST ---\n  No matching class found"

tests/unit/test_rules.py

@@ -11,6 +11,7 @@ from snack_and_lift.domain.rules import (
     Action,
     decide_outcome_action,
     find_next_class,
+    find_target_classes,
     format_outcome,
     is_target_time,
     parse_day_label,
@@ -136,3 +137,28 @@ def test_action_for_busy_or_unknown_button_raises(button_text: str) -> None:
 )
 def test_outcome_message(outcome: Outcome, message: str) -> None:
     assert format_outcome(outcome, make_card()) == message
+
+
+def test_find_target_classes_returns_tuesdays_and_thursdays_in_page_order() -> None:
+    cards = [
+        make_card("Today (Wed, Aug 13)", card_id="1"),
+        make_card("Tomorrow (Thu, Aug 14)", card_id="2"),
+        make_card("Fri, Aug 15", card_id="3"),
+        make_card("Tue, Aug 19", card_id="4"),
+    ]
+
+    assert [card.card_id for card in find_target_classes(cards)] == ["2", "4"]
+
+
+def test_find_target_classes_ignores_other_times_and_completed_cards() -> None:
+    cards = [
+        make_card("Thu, Aug 14", time_text="Time: 7:00 AM", card_id="1"),
+        make_card("Thu, Aug 14", button_text="Completed", card_id="2"),
+        make_card("Tue, Aug 19", time_text="Time: 6:00 PM", card_id="3"),
+    ]
+
+    assert [card.card_id for card in find_target_classes(cards)] == ["3"]
+
+
+def test_find_target_classes_is_empty_when_none_match() -> None:
+    assert find_target_classes([make_card("Wed, Aug 13")]) == []