From aaa3d71665b2ea8fee3a8a5a6eb5e8242ee0ec7c Mon Sep 17 00:00:00 2001
From: Edward Betts <edward@4angle.com>
Date: Sun, 29 Oct 2023 15:17:24 +0000
Subject: [PATCH] Add Critical Mass: last Friday of every month
Closes: #35
---
agenda/__init__.py | 46 ++++++++++++++++++++++++++++++++++++++++++--
templates/index.html | 1 +
2 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/agenda/__init__.py b/agenda/__init__.py
index 25ab8bc..d004bc3 100644
--- a/agenda/__init__.py
+++ b/agenda/__init__.py
@@ -307,6 +307,48 @@ def get_us_holidays(input_date: date) -> list[Event]:
]
+def critical_mass(start_date: date) -> list[Event]:
+ """
+ Return a list of the next 12 dates of the last Friday of the month on or after a given date.
+
+ :param start_date: The date from which to start looking for last Fridays.
+ :type start_date: date
+ :return: List of next 12 last Fridays on or after the start_date.
+ :rtype: List[date]
+ """
+ events: list[Event] = []
+
+ # Set current month and year based on the start_date
+ current_month = start_date.month
+ current_year = start_date.year
+
+ for _ in range(12):
+ # Calculate the last day of the current month
+ if current_month == 12:
+ last_day_of_month = date(current_year + 1, 1, 1) - timedelta(days=1)
+ else:
+ last_day_of_month = date(current_year, current_month + 1, 1) - timedelta(
+ days=1
+ )
+
+ # Find the last Friday of the current month
+ last_friday = last_day_of_month
+ while last_friday.weekday() != 4: # Monday is 0 and Sunday is 6
+ last_friday -= timedelta(days=1)
+
+ # Include it in the list only if it's on or after the start_date
+ if last_friday >= start_date:
+ events.append(Event(name="critical_mass", date=last_friday))
+
+ # Move to the next month
+ current_month += 1
+ if current_month == 13:
+ current_month = 1
+ current_year += 1
+
+ return events
+
+
def as_date(d: date | datetime) -> date:
return d.date() if isinstance(d, datetime) else d
@@ -478,6 +520,7 @@ def get_data(now: datetime) -> typing.Mapping[str, str | object]:
"uk_financial_year_end": uk_financial_year_end(today),
"xmas_last_posting_dates": xmas_last_posting_dates,
"gwr_advance_tickets": find_gwr_advance_ticket_date(),
+ "critical_mass": critical_mass(today),
"rockets": thespacedevs.get_launches(rocket_dir, limit=40),
}
@@ -486,8 +529,7 @@ def get_data(now: datetime) -> typing.Mapping[str, str | object]:
for key, value in reply.items():
if key in skip:
continue
- if "holiday" in key:
- assert isinstance(value, list)
+ if isinstance(value, list):
events += value
else:
assert isinstance(value, date)
diff --git a/templates/index.html b/templates/index.html
index b942d06..62147c5 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -25,6 +25,7 @@
"next_up_series": "Next Up documentary",
"waste_schedule": "Waste schedule",
"gwr_advance_tickets": "GWR advance tickets",
+ "critical_mass": "Critical Mass",
}
%}