test

ex00/BitcoinExchange.cpp

@@ -16,3 +16,110 @@ BitcoinExchange &BitcoinExchange::operator=(const BitcoinExchange &other)
 	this->_data = other._data;
 	return (*this);
 }
+
+bool BitcoinExchange::isValidDate(const std::string &date) const
+{
+	if (date.length() != 10)
+		return (false);
+	if (date[4] != '-' || date[7] != '-')
+		return (false);
+	int year = std::atoi(date.substr(0, 4).c_str());
+	int month = std::atoi(date.substr(5, 2).c_str());
+	int day = std::atoi(date.substr(8, 2).c_str());
+	if (month < 1 || month > 12 || day < 1)
+		return false;
+	if (month != 2 && day > (30 + (month + month / 8) % 2))
+		return false;
+	if (month == 2)
+	{
+		if (((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))) {
+			if (day > 29)
+				return false;
+		} else if (day > 28)
+			return false;
+	}
+	return true;
+}
+
+void BitcoinExchange::loadDatabase(const std::string &filename)
+{
+	std::ifstream file(filename.c_str());
+
+	if (!file.is_open())
+		return;
+
+	std::string line;
+	float value = 0.0;
+	std::getline(file, line); //skip header
+
+	while (std::getline(file, line))
+	{
+		value = std::atof(line.substr(12).c_str());
+		if (isValidDate(line.substr(0, 10)) && value >= 0)
+			_data[line.substr(0, 10)] = value;
+	}
+	file.close();
+}
+
+float BitcoinExchange::getRate(const std::string &date) const
+{
+	std::map<std::string, float>::const_iterator it = _data.upper_bound(date);
+	if (it == _data.begin())
+		return (-1); //not found
+	--it;
+	return (it->second);
+}
+
+bool BitcoinExchange::is_valide_input(const std::string &line, float &value)
+{
+	if (line.length() < 14 || line.find('|') == std::string::npos) {
+		std::cerr << "Error: bad input => " << line << std::endl;
+		return false;
+	}
+	if (!isValidDate(line.substr(0, 10))) {
+		std::cerr << "Error: bad input => " << line << std::endl;
+		return false;
+	}
+	std::string valStr = line.substr(13);
+	char *end;
+	value = std::strtof(valStr.c_str(), &end);
+	if (*end != '\0')
+	{
+		std::cerr << "Error: bad input => " << line << std::endl;
+		return false;
+	}
+	if (value > 1000) {
+		std::cerr << "Error: too large a number." << std::endl;
+		return false;
+	}
+	if (value < 0) {
+		std::cerr << "Error: not a positive number." << std::endl;
+		return false;
+	}
+	return true;
+}
+
+void BitcoinExchange::processInput(const std::string &filename)
+{
+	std::ifstream file(filename.c_str());
+
+	if (!file.is_open())
+		return;
+
+	float value = 0.0;
+	std::string line;
+	std::getline(file, line); // skip header
+
+	while (std::getline(file, line)) {
+		if (!is_valide_input(line, value))
+			continue;
+		std::string date = line.substr(0, 10);
+		float rate = getRate(date);
+		if (rate < 0) {
+			std::cerr << "Error: bad input => " << date << std::endl;
+			continue;
+		}
+		std::cout << date << " => " << value << " = " << value * rate << std::endl;
+	}
+	file.close();
+}

ex00/BitcoinExchange.hpp

@@ -1,6 +1,9 @@
 #ifndef BITCOINEXCHANGE_HPP
 #define BITCOINEXCHANGE_HPP
 
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
 #include <map>
 #include <string>
 
@@ -16,7 +19,7 @@ class BitcoinExchange
 	void processInput(const std::string &filename);
 	float getRate(const std::string &date) const;
 	bool isValidDate(const std::string &date) const;
-	bool isValidValue(const std::string &value, float &out) const;
+	bool is_valide_input(const std::string &line, float &value);
 
   private:
 	std::map<std::string, float> _data;

ex00/Main.cpp

@@ -0,0 +1,15 @@
+#include "BitcoinExchange.hpp"
+#include <iostream>
+
+int main(int argc, char **argv)
+{
+	if (argc != 2) {
+		std::cerr << "Error: could not open file." << std::endl;
+		return (1);
+	}
+	BitcoinExchange btc;
+	btc.loadDatabase("data.csv");
+	btc.processInput(argv[1]);
+	std::cout << btc.isValidDate("2000-02-29") << std::endl;
+	return (0);
+}

ex00/input.txt

@@ -0,0 +1,54 @@
+date | value
+2011-01-03 | 3
+2011-01-03 | 2
+2011-01-03 | 1
+2011-01-03 | 1.2
+2011-01-09 | 1
+2012-01-11 | -1
+2001-42-42
+2012-01-11 | 1
+2012-01-11 | 2147483648
+2009-01-02 | 1
+2009-01-01 | 1
+2022-03-29 | 1000
+2022-03-29 | 1000.01
+2022-03-29 | 0
+2022-03-29 | -0.01
+2022-03-29 | 999.99
+2015-06-15 | 0.5
+2013-12-25 | 100
+2010-03-01 | 10
+abc | 1
+2011-01-03 | abc
+2011-01-03 |
+| 1
+2011-13-01 | 1
+2011-00-01 | 1
+2011-01-32 | 1
+2011-01-00 | 1
+2011-02-29 | 1
+2012-02-29 | 1
+2012-02-30 | 1
+2011-04-31 | 1
+2011-06-31 | 1
+2011-09-31 | 1
+2011-11-31 | 1
+2016-02-29 | 1
+2100-02-29 | 1
+2000-02-29 | 1
+1900-02-29 | 1
+2011-01-03 | -0
+2011-01-03 | 0.0
+2011-01-03 | 0.001
+2022-03-29 | 999
+hello world
+2011-01-03|1
+2011/01/03 | 1
+01-01-2011 | 1
+2011-1-3 | 1
+2011-01-03 | 1.1.1
+2011-01-03 | 1e2
+2011-01-03 | +1
+2008-12-31 | 1
+2025-12-31 | 1
+2009-01-02 | 0.001

ex00/note.cpp

@@ -0,0 +1,3 @@
+int days = 30 + (month + month / 8) % 2;
+
+(year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)

ex00/output.txt

@@ -0,0 +1,2 @@
+dsd
+2000-02-29 | 1