Add management commands for seeding calendar occasions

- Introduced `seed_occasions.py` management command to populate the database with a comprehensive list of Persian, International, and Religious calendar occasions.
- Created `__init__.py` files in the management and commands directories to ensure proper package structure.
- Enhanced the seeding process with transaction management for data integrity during the creation of occasions.

apps/dobodbi_calendar/management/commands/seed_occasions.py

@@ -0,0 +1,143 @@
+import json
+from django.core.management.base import BaseCommand
+from django.db import transaction
+from apps.dobodbi_calendar.models import CalendarOccasions
+
+class Command(BaseCommand):
+    help = 'Seeds the database with realistic Persian, International, and Religious calendar occasions.'
+
+    def handle(self, *args, **options):
+        self.stdout.write(self.style.WARNING('Starting to seed calendar occasions...'))
+
+        # Data structure: (Title, Type, Event Type, Month, Day)
+        # Note: For 'georgian', we use the fixed Gregorian equivalents of Persian Solar events
+        # e.g., Nowruz (1 Farvardin) = 21 March
+        
+        occasions_data = [
+            # --- JANUARY (Dey/Bahman) ---
+            ("آغاز سال میلادی", "georgian", "international", "01", "01"),
+            ("شهادت امیرکبیر", "georgian", "national", "01", "10"), # 20 Dey
+            ("روز گفتگوی تمدن‌ها", "georgian", "international", "01", "14"),
+            ("روز هوای پاک", "georgian", "national", "01", "19"), # 29 Dey
+
+            # --- FEBRUARY (Bahman/Esfand) ---
+            ("بازگشت امام خمینی به ایران", "georgian", "national", "02", "01"), # 12 Bahman
+            ("روز نیروی هوایی", "georgian", "national", "02", "08"), # 19 Bahman
+            ("پیروزی انقلاب اسلامی", "georgian", "national", "02", "11"), # 22 Bahman
+            ("ولنتاین (روز عشق)", "georgian", "international", "02", "14"),
+            ("روز مهندس (بزرگداشت خواجه نصیر)", "georgian", "national", "02", "24"), # 5 Esfand
+            ("سپندارمذگان (روز عشق ایرانی)", "georgian", "national", "02", "24"), # 5 Esfand
+
+            # --- MARCH (Esfand/Farvardin) ---
+            ("روز درختکاری", "georgian", "national", "03", "05"), # 15 Esfand
+            ("روز جهانی زن", "georgian", "international", "03", "08"),
+            ("روز ملی شدن صنعت نفت", "georgian", "national", "03", "20"), # 29 Esfand
+            ("عید نوروز (آغاز سال نو)", "georgian", "national", "03", "21"), # 1 Farvardin
+            ("عید دیدنی (تعطیلات نوروز)", "georgian", "national", "03", "22"), # 2 Farvardin
+            
+            # --- APRIL (Farvardin/Ordibehesht) ---
+            ("روز طبیعت (سیزده بدر)", "georgian", "national", "04", "02"), # 13 Farvardin
+            ("روز جهانی بهداشت", "georgian", "international", "04", "07"),
+            ("روز بزرگداشت عطار نیشابوری", "georgian", "national", "04", "14"), # 25 Farvardin
+            ("روز بزرگداشت سعدی", "georgian", "national", "04", "21"), # 1 Ordibehesht
+            ("روز ملی خلیج فارس", "georgian", "national", "04", "30"), # 10 Ordibehesht
+
+            # --- MAY (Ordibehesht/Khordad) ---
+            ("روز جهانی کار و کارگر", "georgian", "international", "05", "01"),
+            ("شهادت استاد مطهری (روز معلم)", "georgian", "national", "05", "02"), # 12 Ordibehesht
+            ("روز بزرگداشت فردوسی", "georgian", "national", "05", "15"), # 25 Ordibehesht
+            ("روز بزرگداشت خیام", "georgian", "national", "05", "18"), # 28 Ordibehesht
+
+            # --- JUNE (Khordad/Tir) ---
+            ("رحلت امام خمینی", "georgian", "national", "06", "04"), # 14 Khordad
+            ("قیام ۱۵ خرداد", "georgian", "national", "06", "05"), # 15 Khordad
+            ("روز جهانی محیط زیست", "georgian", "international", "06", "05"),
+            ("روز صنایع دستی", "georgian", "national", "06", "10"), # 20 Khordad
+
+            # --- JULY (Tir/Mordad) ---
+            ("روز قلم", "georgian", "national", "07", "05"), # 14 Tir
+            ("جشن تیرگان", "georgian", "national", "07", "04"), # 13 Tir
+            ("روز بهزیستی و تامین اجتماعی", "georgian", "national", "07", "16"), # 25 Tir
+            
+            # --- AUGUST (Mordad/Shahrivar) ---
+            ("روز خبرنگار", "georgian", "national", "08", "08"), # 17 Mordad
+            ("روز جهانی چپ‌دست‌ها", "georgian", "international", "08", "13"),
+            ("روز عکاسی", "georgian", "international", "08", "19"),
+            ("روز بزرگداشت ابن سینا (روز پزشک)", "georgian", "national", "08", "23"), # 1 Shahrivar
+
+            # --- SEPTEMBER (Shahrivar/Mehr) ---
+            ("روز داروسازی (زکریای رازی)", "georgian", "national", "09", "27"), # 5 Shahrivar (Late Aug/Early Sep)
+            ("روز ملی سینما", "georgian", "national", "09", "12"), # 21 Shahrivar
+            ("روز شعر و ادب فارسی (شهریار)", "georgian", "national", "09", "18"), # 27 Shahrivar
+            ("روز جهانی صلح", "georgian", "international", "09", "21"),
+            ("روز آتش‌نشانی و ایمنی", "georgian", "national", "09", "29"), # 7 Mehr
+
+            # --- OCTOBER (Mehr/Aban) ---
+            ("روز جهانی کودک", "georgian", "international", "10", "08"),
+            ("روز بزرگداشت حافظ", "georgian", "national", "10", "12"), # 20 Mehr
+            ("روز جهانی استاندارد", "georgian", "international", "10", "14"),
+            ("روز آمار و برنامه‌ریزی", "georgian", "national", "10", "23"), # 1 Aban
+
+            # --- NOVEMBER (Aban/Azar) ---
+            ("روز دانش‌آموز (۱۳ آبان)", "georgian", "national", "11", "04"), # 13 Aban
+            ("روز کتاب و کتابخوانی", "georgian", "national", "11", "15"), # 24 Aban
+            ("روز جهانی تلویزیون", "georgian", "international", "11", "21"),
+            ("روز نیروی دریایی", "georgian", "national", "11", "28"), # 7 Azar
+
+            # --- DECEMBER (Azar/Dey) ---
+            ("روز دانشجو (۱۶ آذر)", "georgian", "national", "12", "07"), # 16 Azar
+            ("روز پژوهش", "georgian", "national", "12", "16"), # 25 Azar
+            ("شب یلدا (طولانی‌ترین شب سال)", "georgian", "national", "12", "21"), # 30 Azar
+            ("میلاد حضرت مسیح (ع)", "georgian", "religious", "12", "25"),
+
+            # --- LUNAR EVENTS (Religious) ---
+            # Using standard Lunar Hijri months: 
+            # 01: Muharram, 02: Safar, 03: Rabi-al-Awwal, etc.
+            ("تاسوعای حسینی", "lunar", "religious", "01", "09"),
+            ("عاشورای حسینی", "lunar", "religious", "01", "10"),
+            ("اربعین حسینی", "lunar", "religious", "02", "20"),
+            ("رحلت پیامبر اکرم (ص)", "lunar", "religious", "02", "28"),
+            ("میلاد پیامبر اکرم (ص)", "lunar", "religious", "03", "17"),
+            ("ولادت حضرت علی (ع) - روز پدر", "lunar", "religious", "07", "13"),
+            ("مبعث پیامبر اکرم (ص)", "lunar", "religious", "07", "27"),
+            ("ولادت حضرت قائم (عج)", "lunar", "religious", "08", "15"),
+            ("شهادت حضرت علی (ع)", "lunar", "religious", "09", "21"),
+            ("عید سعید فطر", "lunar", "religious", "10", "01"),
+            ("شهادت امام جعفر صادق (ع)", "lunar", "religious", "10", "25"),
+            ("عید سعید قربان", "lunar", "religious", "12", "10"),
+            ("عید سعید غدیر خم", "lunar", "religious", "12", "18"),
+        ]
+
+        created_count = 0
+        updated_count = 0
+
+        with transaction.atomic():
+            for title, type_val, event_type, month, day in occasions_data:
+                # Prepare the dates field json structure
+                date_json = [
+                    {
+                        "day": day,
+                        "month": month,
+                        "year": "" # Empty for yearly events
+                    }
+                ]
+
+                obj, created = CalendarOccasions.objects.update_or_create(
+                    title=title,
+                    defaults={
+                        "occasion_type": type_val,
+                        "event_type": event_type,
+                        "dates": date_json,
+                        "is_yearly": True,
+                        "is_global": True
+                    }
+                )
+
+                if created:
+                    created_count += 1
+                else:
+                    updated_count += 1
+
+        self.stdout.write(self.style.SUCCESS(f'Successfully seeded events.'))
+        self.stdout.write(self.style.SUCCESS(f'Created: {created_count}'))
+        self.stdout.write(self.style.SUCCESS(f'Updated: {updated_count}'))