「✨」 feat(ex00): bitcoin exchange should work :D

ex00/BitcoinExchange.cpp

@@ -4,13 +4,14 @@ Date::Date(void)
 {
 }
 
-Date::Date(const std::string str)
+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)
 	{
-		if (*it != '-')
+		if (!isdigit(*it))
 			continue ;
 		_value *= 10;
 		_value += *it - '0';
@@ -62,26 +63,95 @@ bool Date::operator>=(const Date &other) const
 	return this->_value >= other._value;
 }
 
-// --------------------------------------------------- //
-
-void	parseData(const std::string filename)
+std::ostream &operator<<(std::ostream &os, const Date &date)
 {
-	(void) filename;
+	os << date.getValue();
+	return os;
 }
 
-void	str(std::string input)
+
+
+// --------------------------------------------------- //
+
+void	BitcoinExchange::parseData(const std::string filename)
 {
-	input = "2024-10-04 | 135.00\n2014-04-14 | 24.00\n2001-09-11 | 135.00"
-	std::stringstream input_ss(input);
+	std::ifstream	input_file(filename.c_str());
+	if (input_file.fail())
+		throw std::runtime_error("Error: could not open file.");
+	std::string		line;
+
+	(void) std::getline(input_file, line); // ignore first line
+	while (std::getline(input_file, line))
+	{
+		std::stringstream ss(line);
+		std::string date_str;
+		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)));
+	}
+
+	/*for (std::map<Date, double>::iterator it = this->_data.begin(); it != this->_data.end(); it++)
+	{
+		std::cout << it->first    // string (key)
+			<< ':'
+			<< it->second   // string's value 
+			<< std::endl;
+	}*/
+}
+
+std::string trim(const std::string &s)
+{
+	std::string::size_type start = 0;
+	while (start < s.size() && std::isspace(static_cast<unsigned char>(s[start])))
+		++start;
+
+	std::string::size_type end = s.size();
+	while (end > start && std::isspace(static_cast<unsigned char>(s[end - 1])))
+		--end;
+
+	return s.substr(start, end - start);
+}
+
+void	BitcoinExchange::str(std::string filename)
+{
+	//std::stringstream input_ss(input);
+	std::ifstream	input_ss(filename.c_str());
+	if (input_ss.fail())
+		throw std::runtime_error("Error: could not open file.");
 	std::string line;
 
+	(void) std::getline(input_ss, line); // ignore first line
 	while (std::getline(input_ss, line))
 	{
-		std::stringstream ss(input);
+		std::stringstream ss(line);
 		std::string date_str;
 		std::string value_str;
 		if (!std::getline(ss, date_str, '|') || !std::getline(ss, value_str, '|'))
-			throw ; //add exception ig
-		this->_data.insert(std::pair{Date(date_str), std::atoi(value_str.c_str())});
+		{
+			std::cout << "Error: bad input => " << line << std::endl;
+			continue ;
+		}
+		if (std::atol(value_str.c_str()) > 2147483647)
+		{
+			std::cout << "Error: too large a number." << std::endl;
+			continue ;
+		}
+		if (std::strtod(value_str.c_str(), NULL) < 0)
+		{
+			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
+				--it;
+		}
+		std::cout << date_str << " => " << value_str << " = " << it->second * std::strtod(value_str.c_str(), NULL) << std::endl;
 	}
+
 }

ex00/BitcoinExchange.hpp

@@ -1,5 +1,7 @@
+#include <exception>
 #include <iostream>
 #include <fstream>
+#include <sstream>
 #include <cstdlib>
 #include <string>
 #include <map>
@@ -21,10 +23,16 @@ public:
 	bool operator<=(const Date &) const;
 	bool operator>=(const Date &) const;
 
+	int getValue(void) const {return _value;}
+
 private:
 	unsigned long long	_value;
 };
 
+std::ostream &operator<<(std::ostream &, const Date &);
+
+
+
 class BitcoinExchange {
 public:
 	BitcoinExchange(void) {parseData("data.csv");}
@@ -32,9 +40,11 @@ public:
 	BitcoinExchange	&operator=(const BitcoinExchange &other) {this->_data = other._data; return *this;}
 	~BitcoinExchange(void) {}
 
-	void	parseData(const std::string filename);
 	void	str(std::string input);
 
 private:
+	void	parseData(const std::string filename);
 	std::map<Date, double>	_data;
 };
+
+

ex00/input.txt

@@ -0,0 +1,10 @@
+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

ex00/main.cpp

@@ -2,6 +2,20 @@
 
 int	main(int argc, char **argv)
 {
-	(void) argc;
-	(void) argv;
+	if (argc < 2)
+	{
+		std::cout << "Error: could not open file." << std::endl;
+		return 1;
+	}
+	BitcoinExchange btc;
+	try
+	{
+		btc.str(argv[1]);
+	}
+	catch (std::runtime_error &e)
+	{
+		std::cout << e.what() << std::endl;
+		return 1;
+	}
+	return 0;
 }