diff --git a/program/services.py b/program/services.py
index 37e9e9860309961ff100056661a56752244af2db..9ec5d4cada7b1ed7395a2f296df7f5546367b09f 100644
--- a/program/services.py
+++ b/program/services.py
@@ -41,6 +41,7 @@ class ScheduleData(TypedDict):
add_days_no: int | None
by_weekday: int | None
default_playlist_id: int | None
+ dryrun: bool | None
end_time: str
first_date: str
id: int | None
@@ -79,8 +80,14 @@ class Conflicts(TypedDict):
solutions: dict[str, str]
-# TODO: add type annotations
-def resolve_conflicts(data, schedule_pk, show_pk):
+class ScheduleCreateUpdateData(TypedDict):
+ notes: dict
+ playlists: dict
+ schedule: ScheduleData
+ solutions: dict[str, str]
+
+
+def resolve_conflicts(data: ScheduleCreateUpdateData, schedule_pk: int | None, show_pk: int):
"""
Resolves conflicts
Expects JSON POST/PUT data from /shows/1/schedules/
@@ -89,21 +96,20 @@ def resolve_conflicts(data, schedule_pk, show_pk):
Returns an empty list if resolution was successful
"""
- sdl = data["schedule"]
- solutions = data.get("solutions", [])
+ schedule = data["schedule"]
+ solutions = data.get("solutions", []) # only needed if conflicts exist
- # Regenerate conflicts
- schedule = instantiate_upcoming_schedule(sdl, show_pk, schedule_pk)
- show = schedule.show
- conflicts = make_conflicts(sdl, schedule_pk, show_pk)
+ new_schedule = instantiate_upcoming_schedule(schedule, show_pk, schedule_pk)
+ show = new_schedule.show
+ conflicts = make_conflicts(schedule, schedule_pk, show_pk)
- if schedule.rrule.freq > 0 and schedule.first_date == schedule.last_date:
+ if new_schedule.rrule.freq > 0 and new_schedule.first_date == new_schedule.last_date:
raise ValidationError(
_("Start and end dates must not be the same."),
code="no-same-day-start-and-end",
)
- if schedule.last_date < schedule.first_date:
+ if new_schedule.last_date < new_schedule.first_date:
raise ValidationError(
_("End date mustn't be before start."),
code="no-start-after-end",
@@ -118,177 +124,159 @@ def resolve_conflicts(data, schedule_pk, show_pk):
conflicts=conflicts,
)
- # Projected timeslots to create
- create = []
+ to_create: list[TimeSlot] = []
+ to_update: list[TimeSlot] = []
+ to_delete: list[TimeSlot] = []
- # Existing timeslots to update
- update = []
-
- # Existing timeslots to delete
- delete = []
-
- # Error messages
errors = {}
- for ts in conflicts["projected"]:
- # If no solution necessary
- #
- # - Create the projected timeslot and skip
- #
- if "solution_choices" not in ts or len(ts["collisions"]) < 1:
- projected_ts = TimeSlot.objects.instantiate(ts["start"], ts["end"], schedule, show)
- create.append(projected_ts)
+ for timeslot in conflicts["projected"]:
+ # If no solution necessary: Create the projected timeslot and skip
+ if "solution_choices" not in timeslot or len(timeslot["collisions"]) == 0:
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], timeslot["end"], new_schedule, show
+ ),
+ )
continue
# Check hash (if start, end, rrule or by_weekday changed)
- if not ts["hash"] in solutions:
- errors[ts["hash"]] = _("This change on the timeslot is not allowed.")
+ if not timeslot["hash"] in solutions:
+ errors[timeslot["hash"]] = _("This change on the timeslot is not allowed.")
continue
- # If no resolution given
- #
- # - Skip
- #
- if solutions[ts["hash"]] == "":
- errors[ts["hash"]] = _("No solution given.")
+ # If no resolution given: skip
+ if solutions[timeslot["hash"]] == "":
+ errors[timeslot["hash"]] = _("No solution given.")
continue
- # If resolution is not accepted for this conflict
- #
- # - Skip
- #
- if not solutions[ts["hash"]] in ts["solution_choices"]:
- errors[ts["hash"]] = _("Given solution is not accepted for this conflict.")
+ # If resolution is not accepted for this conflict: SKIP
+ if not solutions[timeslot["hash"]] in timeslot["solution_choices"]:
+ errors[timeslot["hash"]] = _("Given solution is not accepted for this conflict.")
continue
"""Conflict resolution"""
- existing = ts["collisions"][0]
- solution = solutions[ts["hash"]]
+ existing = timeslot["collisions"][0]
+ solution = solutions[timeslot["hash"]]
- # theirs
- #
- # - Discard the projected timeslot
- # - Keep the existing collision(s)
- #
if solution == "theirs":
+ # - Discard the projected timeslot
+ # - Keep the existing collision(s)
continue
- # ours
- #
- # - Create the projected timeslot
- # - Delete the existing collision(s)
- #
if solution == "ours":
- projected_ts = TimeSlot.objects.instantiate(ts["start"], ts["end"], schedule, show)
- create.append(projected_ts)
+ # - Create the projected timeslot
+ # - Delete the existing collision(s)
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], timeslot["end"], new_schedule, show
+ ),
+ )
# Delete collision(s)
- for ex in ts["collisions"]:
+ for collision in timeslot["collisions"]:
try:
- existing_ts = TimeSlot.objects.get(pk=ex["id"])
- delete.append(existing_ts)
+ to_delete.append(TimeSlot.objects.get(pk=collision["id"]))
except ObjectDoesNotExist:
pass
- # theirs-end
- #
- # - Keep the existing timeslot
- # - Create projected with end of existing start
- #
if solution == "theirs-end":
- projected_ts = TimeSlot.objects.instantiate(
- ts["start"], existing["start"], schedule, show
+ # - Keep the existing timeslot
+ # - Create projected with end of existing start
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], existing["start"], new_schedule, show
+ ),
)
- create.append(projected_ts)
- # ours-end
- #
- # - Create the projected timeslot
- # - Change the start of the existing collision to projected end
- #
if solution == "ours-end":
- projected_ts = TimeSlot.objects.instantiate(ts["start"], ts["end"], schedule, show)
- create.append(projected_ts)
+ # - Create the projected timeslot
+ # - Change the start of the existing collision to projected end
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], timeslot["end"], new_schedule, show
+ ),
+ )
existing_ts = TimeSlot.objects.get(pk=existing["id"])
- existing_ts.start = parse_datetime(ts["end"])
- update.append(existing_ts)
-
- # theirs-start
- #
- # - Keep existing
- # - Create projected with start time of existing end
- #
+ existing_ts.start = parse_datetime(timeslot["end"])
+ to_update.append(existing_ts)
+
if solution == "theirs-start":
- projected_ts = TimeSlot.objects.instantiate(existing["end"], ts["end"], schedule, show)
- create.append(projected_ts)
-
- # ours-start
- #
- # - Create the projected timeslot
- # - Change end of existing to projected start
- #
+ # - Keep existing
+ # - Create projected with start time of existing end
+ to_create.append(
+ TimeSlot.objects.instantiate(existing["end"], timeslot["end"], new_schedule, show),
+ )
+
if solution == "ours-start":
- projected_ts = TimeSlot.objects.instantiate(ts["start"], ts["end"], schedule, show)
- create.append(projected_ts)
+ # - Create the projected timeslot
+ # - Change end of existing to projected start
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], timeslot["end"], new_schedule, show
+ ),
+ )
existing_ts = TimeSlot.objects.get(pk=existing["id"])
- existing_ts.end = parse_datetime(ts["start"])
- update.append(existing_ts)
-
- # theirs-both
- #
- # - Keep existing
- # - Create two projected timeslots with end of existing start and start of existing
- # end
- #
+ existing_ts.end = parse_datetime(timeslot["start"])
+ to_update.append(existing_ts)
+
if solution == "theirs-both":
- projected_ts = TimeSlot.objects.instantiate(
- ts["start"], existing["start"], schedule, show
+ # - Keep existing
+ # - Create two projected timeslots with end of existing start and start of existing end
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], existing["start"], new_schedule, show
+ ),
)
- create.append(projected_ts)
-
- projected_ts = TimeSlot.objects.instantiate(existing["end"], ts["end"], schedule, show)
- create.append(projected_ts)
-
- # ours-both
- #
- # - Create projected
- # - Split existing into two:
- # - Set existing end time to projected start
- # - Create another one with start = projected end and end = existing end
- #
+
+ to_create.append(
+ TimeSlot.objects.instantiate(existing["end"], timeslot["end"], new_schedule, show),
+ )
+
if solution == "ours-both":
- projected_ts = TimeSlot.objects.instantiate(ts["start"], ts["end"], schedule, show)
- create.append(projected_ts)
+ # - Create projected
+ # - Split existing into two
+ # - Set existing end time to projected start
+ # - Create another one with start = projected end and end = existing end
+ to_create.append(
+ TimeSlot.objects.instantiate(
+ timeslot["start"], timeslot["end"], new_schedule, show
+ ),
+ )
existing_ts = TimeSlot.objects.get(pk=existing["id"])
- existing_ts.end = parse_datetime(ts["start"])
- update.append(existing_ts)
+ existing_ts.end = parse_datetime(timeslot["start"])
+ to_update.append(existing_ts)
- projected_ts = TimeSlot.objects.instantiate(ts["end"], existing["end"], schedule, show)
- create.append(projected_ts)
+ to_create.append(
+ TimeSlot.objects.instantiate(timeslot["end"], existing["end"], new_schedule, show),
+ )
# If there were any errors, don't make any db changes yet
# but add error messages and return already chosen solutions
if len(errors) > 0:
- conflicts = make_conflicts(model_to_dict(schedule), schedule.pk, show.pk)
+ conflicts = make_conflicts(model_to_dict(new_schedule), new_schedule.pk, show.pk)
partly_resolved = conflicts["projected"]
saved_solutions = {}
# Add already chosen resolutions and error message to conflict
- for index, c in enumerate(conflicts["projected"]):
+ for index, projected_entry in enumerate(conflicts["projected"]):
# The element should only exist if there was a collision
- if len(c["collisions"]) > 0:
- saved_solutions[c["hash"]] = ""
+ if len(projected_entry["collisions"]) > 0:
+ saved_solutions[projected_entry["hash"]] = ""
- if c["hash"] in solutions and solutions[c["hash"]] in c["solution_choices"]:
- saved_solutions[c["hash"]] = solutions[c["hash"]]
+ if (
+ projected_entry["hash"] in solutions
+ and solutions[projected_entry["hash"]] in projected_entry["solution_choices"]
+ ):
+ saved_solutions[projected_entry["hash"]] = solutions[projected_entry["hash"]]
- if c["hash"] in errors:
- partly_resolved[index]["error"] = errors[c["hash"]]
+ if projected_entry["hash"] in errors:
+ partly_resolved[index]["error"] = errors[projected_entry["hash"]]
# Re-insert post data
conflicts["projected"] = partly_resolved
@@ -302,61 +290,55 @@ def resolve_conflicts(data, schedule_pk, show_pk):
conflicts=conflicts,
)
- # Collect upcoming timeslots to delete which might still remain
- del_timeslots = TimeSlot.objects.filter(
- schedule=schedule,
- start__gt=timezone.make_aware(datetime.combine(schedule.last_date, time(0, 0))),
+ remaining_timeslots = TimeSlot.objects.filter(
+ schedule=new_schedule,
+ start__gt=timezone.make_aware(datetime.combine(new_schedule.last_date, time(0, 0))),
)
- for del_ts in del_timeslots:
- delete.append(del_ts)
+ for timeslot in remaining_timeslots:
+ to_delete.append(timeslot)
# If 'dryrun' is true, just return the projected changes instead of executing them
- if "dryrun" in sdl and sdl["dryrun"]:
+ if "dryrun" in schedule and schedule["dryrun"]:
return {
- "create": [model_to_dict(ts) for ts in create],
- "update": [model_to_dict(ts) for ts in update],
- "delete": [model_to_dict(ts) for ts in delete],
+ "create": [model_to_dict(timeslot) for timeslot in to_create],
+ "update": [model_to_dict(timeslot) for timeslot in to_update],
+ "delete": [model_to_dict(timeslot) for timeslot in to_delete],
}
- """Database changes if no errors found"""
+ # Database changes if no errors found
- # Only save schedule if timeslots were created
- if create:
- # Create or update schedule
- schedule.save()
+ if to_create:
+ new_schedule.save()
- # Update timeslots
- for ts in update:
- ts.save(update_fields=["start", "end"])
+ for timeslot in to_update:
+ timeslot.save(update_fields=["start", "end"])
- # Create timeslots
- for ts in create:
- ts.schedule = schedule
+ for timeslot in to_create:
+ timeslot.schedule = new_schedule
# Reassign playlists
- if "playlists" in data and ts.hash in data["playlists"]:
- ts.playlist_id = int(data["playlists"][ts.hash])
+ if "playlists" in data and timeslot.hash in data["playlists"]:
+ timeslot.playlist_id = int(data["playlists"][timeslot.hash])
- ts.save()
+ timeslot.save()
# Reassign notes
- if "notes" in data and ts.hash in data["notes"]:
+ if "notes" in data and timeslot.hash in data["notes"]:
try:
- note = Note.objects.get(pk=int(data["notes"][ts.hash]))
- note.timeslot_id = ts.id
+ note = Note.objects.get(pk=int(data["notes"][timeslot.hash]))
+ note.timeslot_id = timeslot.id
note.save(update_fields=["timeslot_id"])
- timeslot = TimeSlot.objects.get(pk=ts.id)
+ timeslot = TimeSlot.objects.get(pk=timeslot.id)
timeslot.note_id = note.id
timeslot.save(update_fields=["note_id"])
except ObjectDoesNotExist:
pass
- # Delete manually resolved timeslots and those after until
- for dl in delete:
- dl.delete()
+ for timeslot in to_delete:
+ timeslot.delete()
- return model_to_dict(schedule)
+ return model_to_dict(new_schedule)
def instantiate_upcoming_schedule(