Added data models and loading some information from DB

faerun_calendar/models.py

@@ -1,3 +1,79 @@
 from django.db import models
 
-# Create your models here.
+
+class FaerunDate:
+    LAST_MONTH = 18
+    LEAP_MONTH = 11
+    ONE_DAY_MONTHS = (2, 6, 10, 11, 14, 17)
+    LAST_DAY = 30
+
+    def __init__(self, year: int,  month: int,  day: int):
+        self.year = year
+        self.month = month
+        self.day = day
+        self.is_leap_year = self._is_leap_year()
+        self.is_valid = self._is_valid()
+
+    def __repr__(self):
+        return f'{type(self).__name__}({self.year}, {self.month}, {self.day})'
+
+    def _is_leap_year(self) -> bool:
+        if self.year == 0:
+            return False
+        elif self.year % 400 == 0:
+            return True
+        elif self.year % 100 == 0:
+            return False
+        elif self.year % 4 == 0:
+            return True
+        return False
+
+    def _is_valid(self) -> bool:
+        if self.year == 0:
+            return False
+
+        if not 0 < self.month <= FaerunDate.LAST_MONTH:
+            return False
+
+        if not self.is_leap_year and self.month == self.__class__.LEAP_MONTH:
+            return False
+
+        if not 0 < self.day <= FaerunDate.LAST_DAY:
+            return False
+
+        if self.day > 1 and self.month in FaerunDate.ONE_DAY_MONTHS:
+            return False
+
+        return True
+
+
+class CalendarData(models.Model):
+    current_year = models.SmallIntegerField('CurrentYear')
+    current_month = models.SmallIntegerField('CurrentMonth')
+    current_day = models.SmallIntegerField('CurrentDay')
+    leap_month = models.SmallIntegerField('LeapMonth')
+
+    def __str__(self):
+        return f'({self.current_year}, {self.current_month}, {self.current_day}, {self.leap_month})'
+
+
+class MonthData(models.Model):
+    number = models.SmallIntegerField('Number', unique=True)
+    name = models.CharField('Name', max_length=64, unique=True)
+    folkname = models.CharField('Folkname', max_length=64, blank=True)
+    is_oneday = models.BooleanField('IsOneday')
+
+    def __str__(self):
+        return f'({self.number}, {self.name}, {self.folkname}, {self.is_oneday})'
+
+
+class Event(models.Model):
+    year = models.SmallIntegerField('Year')
+    month = models.SmallIntegerField('Month')
+    day = models.SmallIntegerField('Day')
+    time = models.TimeField('Time')
+    title = models.CharField('Title', max_length=250)
+    description = models.TextField('Description', max_length=2500)
+
+    def __str__(self):
+        return f'({self.year}, {self.month}, {self.day}, {self.time}, {self.title})'