From c84027cdff2582f471e15baf1ae9a94569576448 Mon Sep 17 00:00:00 2001
From: y-syo <mmoussou@student.42angouleme.fr>
Date: Fri, 29 Aug 2025 11:52:44 +0200
Subject: [PATCH] =?UTF-8?q?=E3=80=8C=F0=9F=94=A8=E3=80=8D=20fix(ex00):=20a?=
 =?UTF-8?q?dded=20date=20parsing,=20ex00=20is=20done=20pogit=20c=20:D?=
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---
 ex00/BitcoinExchange.cpp | 59 ++++++++++++++++++++++++++++++++--------
 ex00/input.txt           |  2 ++
 ex00/main.cpp            |  2 +-
 3 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/ex00/BitcoinExchange.cpp b/ex00/BitcoinExchange.cpp
index 6829de0..17bd55d 100644
--- a/ex00/BitcoinExchange.cpp
+++ b/ex00/BitcoinExchange.cpp
@@ -1,5 +1,12 @@
 #include "BitcoinExchange.hpp"
 
+bool	is_leap_year(int year)
+{
+	if (year % 100 != 0 && year % 400 == 0)
+		return false;
+	return (year % 4 == 0);
+}
+
 Date::Date(void)
 {
 }
@@ -7,7 +14,6 @@ Date::Date(void)
 Date::Date(std::string str)
 {
 	// check format (4 char & isdigit into dash into 2 char isdigit & < 1 && isdigit & < 2, and same for day except ahah funny cuz 30 and 31 and 28 and 29 agfjasfgfjahkfga)
-
 	_value = 0;
 	for (std::string::iterator it = str.begin(); it < str.end(); ++it)
 	{
@@ -16,6 +22,18 @@ Date::Date(std::string str)
 		_value *= 10;
 		_value += *it - '0';
 	}
+
+	int	year = _value / 10000;
+	int	month = (_value / 100) % 100;
+	int	day = _value % 100;
+
+	if (month > 12 || month == 0 || day == 0)
+		throw std::invalid_argument("invalid date.");
+
+	int monthly_days[] = {0, 31, is_leap_year(year) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30 ,31 };
+
+	if (day > monthly_days[month])
+		throw std::invalid_argument("invalid date.");
 }
 
 Date::Date(const Date &other)
@@ -88,7 +106,13 @@ void	BitcoinExchange::parseData(const std::string filename)
 		std::string value_str;
 		if (!std::getline(ss, date_str, ',') || !std::getline(ss, value_str, ','))
 			throw std::runtime_error("parsing issue in the data.csv file.");
-		this->_data.insert(std::make_pair(Date(date_str), std::strtod(value_str.c_str(), NULL)));
+		try {
+			this->_data.insert(std::make_pair(Date(date_str), std::strtod(value_str.c_str(), NULL)));
+		}
+		catch (std::invalid_argument &e)
+		{
+			throw std::invalid_argument(e.what());
+		}
 	}
 
 	/*for (std::map<Date, double>::iterator it = this->_data.begin(); it != this->_data.end(); it++)
@@ -108,7 +132,7 @@ std::string trim(const std::string &s)
 
 	std::string::size_type end = s.size();
 	while (end > start && std::isspace(static_cast<unsigned char>(s[end - 1])))
-		--end;
+	--end;
 
 	return s.substr(start, end - start);
 }
@@ -142,16 +166,29 @@ void	BitcoinExchange::str(std::string filename)
 			std::cout << "Error: not a positive number." << std::endl;
 			continue ;
 		}
-		Date date(date_str);
-		std::map<Date, double>::iterator it = _data.lower_bound(date);
-		if (it == _data.end() || it->first > date)
-		{
-			if (it == _data.begin())
-				it = _data.end();
-			else
+		try {
+			Date date(date_str);
+			if (date < _data.begin()->first)
+			{
+				std::cout << "Error: input date too low." << std::endl;
+				continue ;
+			}
+			std::map<Date, double>::iterator it = _data.lower_bound(date);
+			if (it == _data.end() || it->first > date)
+			{
+				if (it == _data.begin())
+					it = _data.end();
+					else
 				--it;
+			}
+			std::cout << date_str << " => " << value_str << " = " << it->second * std::strtod(value_str.c_str(), NULL) << std::endl;
+
+		}
+		catch (std::invalid_argument &e)
+		{
+			std::cout << "Error: " << e.what() << std::endl;
+			continue ;
 		}
-		std::cout << date_str << " => " << value_str << " = " << it->second * std::strtod(value_str.c_str(), NULL) << std::endl;
 	}
 
 }
diff --git a/ex00/input.txt b/ex00/input.txt
index 3c0b3ec..96d7b85 100644
--- a/ex00/input.txt
+++ b/ex00/input.txt
@@ -1,4 +1,6 @@
 date | value
+1971-01-02 | 5
+1971-31-02 | 5
 2011-01-03 | 3
 2011-01-03 | 2
 2011-01-03 | 1
diff --git a/ex00/main.cpp b/ex00/main.cpp
index f298732..57575f8 100644
--- a/ex00/main.cpp
+++ b/ex00/main.cpp
@@ -7,9 +7,9 @@ int	main(int argc, char **argv)
 		std::cout << "Error: could not open file." << std::endl;
 		return 1;
 	}
-	BitcoinExchange btc;
 	try
 	{
+		BitcoinExchange btc;
 		btc.str(argv[1]);
 	}
 	catch (std::runtime_error &e)