Add script for calculating available development weeks (#3383)

* Add script for calculating available development weeks

* Assume part time for whole year

Co-authored-by: sarayourfriend <24264157+sarayourfriend@users.noreply.github.com>

---------

Co-authored-by: sarayourfriend <24264157+sarayourfriend@users.noreply.github.com>

Author: AetherUnbound

utilities/project_planning/calculate_available_weeks.py

@@ -0,0 +1,67 @@
+"""
+Calculate max weeks of programmer availability for yearly planning.
+
+Assumes the following:
+
+1. The number of maintainers stays the same
+2. We cannot anticipate availability changes like parental leave, part-time moves, etc.
+3. 5 weeks of holiday + sick leave with stipulation that this is just an estimate!!!!!
+4. Not all conferences are accounted for
+"""
+
+programmers_with_reduced_availability = {
+    # _ is part-time (safer to assume that isn't going to change)
+    "_": 52 * 0.6,
+    # __ is on parental leave for the first quarter of the year
+    "__": 52 - (52 / 4),
+    # assume whoever is lead at any point probably has 1/3rd availability for dev work
+    "lead": 52 / 3,
+}
+
+total_openverse_maintainers = 8
+
+programmers_with_regular_availability = {
+    "-" * (i + 1): 52
+    for i in range(
+        total_openverse_maintainers - len(programmers_with_reduced_availability)
+    )
+}
+
+programmer_availability_ignoring_regular_leave = (
+    programmers_with_reduced_availability | programmers_with_regular_availability
+)
+
+# These are just vague estimates, obviously some folks take more or less, etc.
+holiday_weeks = 4
+sick_weeks = 1
+
+total_leave_weeks = holiday_weeks + sick_weeks
+
+# Conferences with attendance estimate in reduced availability by weeks
+conference_weeks = {
+    "wceu": 3,
+    "wcus": 2,
+    "wccs": 2,
+    "wcasia": 2,
+    "ccglobalsummit": 1,
+    "data": 1,
+    "pydata": 0.5,
+    "pycascades": 1,
+    "widsps": 0.25,
+    "other": 2,
+    "teammeetup1": total_openverse_maintainers,
+    "teammeetup2": total_openverse_maintainers,
+    # Not all team members attend division meetups
+    "divisonmeetup": total_openverse_maintainers / 2,
+}
+
+total_programmer_availability = sum(
+    [
+        weeks - total_leave_weeks
+        for weeks in programmer_availability_ignoring_regular_leave.values()
+    ]
+    + [weeks * -1 for weeks in conference_weeks.values()]
+)
+
+print("Total weeks of programmer availability:", total_programmer_availability)
+# => (e.g.) 221.6