From c50ed74e3a583d539977059ffb8fd0198b54eb88 Mon Sep 17 00:00:00 2001
From: angeld55 <angel_dimitriev@abv.bg>
Date: Wed, 13 Apr 2022 02:32:26 +0300
Subject: date mutable change

---
 Sem. 06/Event/Date.cpp  | 23 +++++++++++++++++------
 Sem. 06/Event/Date.h    |  7 ++++---
 Sem. 06/Event/Event.cpp |  2 +-
 Sem. 06/Event/Event.h   |  2 +-
 4 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/Sem. 06/Event/Date.cpp b/Sem. 06/Event/Date.cpp
index 51543c3..b4df47a 100644
--- a/Sem. 06/Event/Date.cpp	
+++ b/Sem. 06/Event/Date.cpp	
@@ -6,12 +6,16 @@ using namespace std;
 
 bool Date::isLeapYear() const
 {
-if (year <= 1916)
-	return year % 4 == 0;
-return ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);
+	if (year <= 1916)
+		return year % 4 == 0;
+	return ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);
 }
 
-
+void Date::validateDateByChangedCalendars() 
+{
+	if (year == 1916 && month == 4 && day >= 1 && day <= 13) // invalid days due to change in callendars 
+		day = 15;
+}
 
 Date::Date(size_t day, size_t month, size_t year)
 {
@@ -40,6 +44,7 @@ void Date::setYear(size_t year)
 	else
 		MAX_DAYS[1] = 28;
 	isModified = true;
+	validateDateByChangedCalendars();
 }
 void Date::setMonth(size_t month)
 {
@@ -48,7 +53,12 @@ void Date::setMonth(size_t month)
 		month = 1;
 	}
 	this->month = month;
+
+	if (day > MAX_DAYS[month - 1])
+		day = MAX_DAYS[month - 1];
+
 	isModified = true;
+	validateDateByChangedCalendars();
 }
 void Date::setDay(size_t day)
 {
@@ -56,8 +66,9 @@ void Date::setDay(size_t day)
 	{
 		day = 1;
 	}
-	isModified = true;
 	this->day = day;
+	isModified = true;
+	validateDateByChangedCalendars();
 }
 void Date::print() const
 {
@@ -86,7 +97,7 @@ bool Date::areEqual(const Date& other) const
 	return year == other.year && month == other.month && day == other.day;
 }
 
-int Date::getDayOfWeek() 
+int Date::getDayOfWeek()  const
 {
 
 	if (!isModified)
diff --git a/Sem. 06/Event/Date.h b/Sem. 06/Event/Date.h
index c1c071f..2e28ffa 100644
--- a/Sem. 06/Event/Date.h	
+++ b/Sem. 06/Event/Date.h	
@@ -8,10 +8,11 @@ class Date
 
 	size_t MAX_DAYS[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
 
-	int dayOfWeek; 
-	bool isModified = true;
+	mutable int dayOfWeek; 
+	mutable bool isModified = true;
 
 	bool isLeapYear() const;
+	void validateDateByChangedCalendars();
 public:
 	Date(size_t day, size_t month, size_t year);
 	
@@ -28,6 +29,6 @@ public:
 
 	bool areEqual(const Date& other) const;
 
-	int getDayOfWeek(); //cant be const, because of changings dayOfWeek and isModified 
+	int getDayOfWeek() const; //cant be const, because of changings dayOfWeek and isModified 
 						// can we get around this ??
 };
diff --git a/Sem. 06/Event/Event.cpp b/Sem. 06/Event/Event.cpp
index 0962843..b69669c 100644
--- a/Sem. 06/Event/Event.cpp	
+++ b/Sem. 06/Event/Event.cpp	
@@ -35,7 +35,7 @@ const char* Event::getName() const
 	return name;
 }
 
-int Event::getEventsDayOfWeek()
+int Event::getEventsDayOfWeek() const
 {
 	return date.getDayOfWeek();
 }
diff --git a/Sem. 06/Event/Event.h b/Sem. 06/Event/Event.h
index d836a9f..c4810f8 100644
--- a/Sem. 06/Event/Event.h	
+++ b/Sem. 06/Event/Event.h	
@@ -19,6 +19,6 @@ public:
 
 	void print() const;
 
-	int getEventsDayOfWeek(); //can't be const (date.getDayOfWeek is not a constant function)
+	int getEventsDayOfWeek() const; //can't be const (date.getDayOfWeek is not a constant function)
 							  // how can we fix it ???
 };
\ No newline at end of file
-- 
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