import datetime
from datetime import date as std_date
from enum import Enum, auto
from typing import Optional, Dict
from django.contrib.auth import get_user_model
from django.db import models
from django.db.models import Q
from ctrack.caf.models import CAF
from ctrack.organisations.models import Person
from ctrack.users.models import User
class EventType(Enum):
MEETING = auto()
PHONE_CALL = auto()
VIDEO_CALL = auto()
# single date caf events
CAF_INITIAL_CAF_RECEIVED = auto()
CAF_FEEDBACK_EMAILED_OES = auto()
CAF_RECEIVED = auto()
CAF_EMAILED_ROSA = auto()
# twin date caf events
CAF_PEER_REVIEW_PERIOD = auto()
CAF_VALIDATION_PERIOD = auto()
CAF_VALIDATION_SIGN_OFF = auto()
CAF_VALIDATION_RECORD_EMAILED_TO_OES = auto()
def _style_descriptor(days: int) -> str:
if days < 1:
return "red"
elif 0 < days < 5:
return "orange"
else:
return "black"
def _day_string(days: int) -> str:
if days < 1 or days > 1:
return "days"
else:
return "day"
class AuditableEventBase(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
created_date = models.DateTimeField()
modified_date = models.DateTimeField()
class Meta:
abstract = True
def save(self, *args, **kwargs):
# TODO this also needs to include created_by and updated_by attributes
"""Overriding so we can save the dates in here."""
if not self.pk:
self.created_date = datetime.datetime.now()
self.modified_date = datetime.datetime.now()
return super().save(*args, **kwargs)
class EventBase(AuditableEventBase):
short_description = models.CharField(
max_length=50,
help_text="Short description of the event. Use Comments field for full detail.",
)
document_link = models.URLField(
max_length=1000,
blank=True,
null=True,
help_text="URL only - do not try to drag a file here.",
)
comments = models.TextField(
max_length=1000,
blank=True,
null=True,
help_text="Use this to provide further detail about the event.",
)
class Meta:
abstract = True
class ThirdPartyEventMixin(models.Model):
participants = models.ManyToManyField(Person, null=True, blank=True)
location = models.CharField(max_length=100, blank=True)
class Meta:
abstract = True
class SingleDateTimeEventMixin(models.Model):
datetime = models.DateTimeField()
class Meta:
abstract = True
class SingleDateMixin(models.Model):
date = models.DateField()
class Meta:
abstract = True
class CAFMixin(models.Model):
related_caf = models.ForeignKey(CAF, on_delete=models.CASCADE)
class SingleDateTimeEvent(EventBase, ThirdPartyEventMixin, SingleDateTimeEventMixin):
AVAILABLE_TYPES = [
(EventType.PHONE_CALL.name, "Phone Call"),
(EventType.VIDEO_CALL.name, "Video Call"),
]
type_descriptor = models.CharField(max_length=50, choices=AVAILABLE_TYPES)
def __str__(self):
return self.type_descriptor
class MeetingEvent(EventBase, ThirdPartyEventMixin, SingleDateTimeEventMixin):
AVAILABLE_TYPES = [(EventType.MEETING.name, "Meeting")]
type_descriptor = models.CharField(max_length=50, choices=AVAILABLE_TYPES)
class CAFSingleDateEvent(EventBase, CAFMixin, SingleDateMixin):
AVAILABLE_TYPES = [
(EventType.CAF_INITIAL_CAF_RECEIVED.name, "CAF - Initial CAF Received"),
(EventType.CAF_RECEIVED.name, "CAF - Received"),
(EventType.CAF_EMAILED_ROSA.name, "CAF - Emailed to Rosa"),
]
type_descriptor = models.CharField(max_length=50, choices=AVAILABLE_TYPES)
class Meta:
constraints = [
# We can't do multiple CAFSingleDateEvents in a single day unless
# the type is declared with the Q expression.
models.UniqueConstraint(
fields=["date", "type_descriptor"],
condition=~Q(type_descriptor="CAF_EMAILED_ROSA"),
name="unique_caf_for_date",
),
]
# OLD CODE BELOW
class EngagementType(models.Model):
"""
Examples here are Phone, Email, Letter, Site visit, Meeting, Audit, Inspection, etc.
Also official instruments such as designation letters, Information Notices, etc.
"""
descriptor = models.CharField(max_length=100, blank=False)
enforcement_instrument = models.BooleanField(default=False)
regulation_reference = models.CharField(max_length=100, blank=True, null=True)
comments = models.TextField(max_length=1000, blank=True, null=True)
single_date_type = models.BooleanField(default=False, blank=False)
def __str__(self):
return self.descriptor
class EngagementEvent(models.Model):
"""
Involves multiple people, such as a meeting, phone call, etc.
"""
def get_sentinel_user():
"""
We need this so that we can ensure models.SET() is applied with a callable
to handle when Users are deleted from the system, preventing the EngagementEvent
objects related to them being deleted also.
"""
return get_user_model().objects.get_or_create(username="DELETED USER")[0]
type = models.ForeignKey(EngagementType, on_delete=models.CASCADE)
short_description = models.CharField(
max_length=50,
help_text="Short description of the event. Use Comments field for full detail.",
)
participants = models.ManyToManyField(Person, blank=True)
user = models.ForeignKey(get_user_model(), on_delete=models.SET(get_sentinel_user))
date = models.DateTimeField()
end_date = models.DateTimeField(
blank=True, null=True, help_text="Should be used for periodic events."
)
document_link = models.URLField(
max_length=1000,
blank=True,
null=True,
help_text="URL only - do not try to drag a file here.",
)
response_date_requested = models.DateField(blank=True, null=True)
response_received = models.DateField(blank=True, null=True)
related_caf = models.ForeignKey(
"caf.CAF",
blank=True,
on_delete=models.CASCADE,
null=True,
help_text="If the event relates to a CAF, refer to it here.",
)
comments = models.TextField(
max_length=1000,
blank=True,
null=True,
help_text="Use this to provide further detail about the event.",
)
def days_to_response_due(self) -> Optional[Dict[int, str]]:
if self.response_date_requested:
today = std_date.today()
diff = self.response_date_requested - today
return dict(
days=diff.days,
descriptor=_style_descriptor(diff.days),
day_str=_day_string(diff.days),
)
else:
return None
def __str__(self):
d = self.date.date()
iso_format_date = d.isoformat()
return f"{iso_format_date} | {self.type.descriptor} | {self.short_description}"
