Add created and set up the CSVReader.h file

CM2005 Object Oriented Programming/Topic 3/3.4.2/CSVReader.h

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+#pragma once
+
+#include "OrderBookEntry.h"
+#include <vector>
+#include <string>
+
+class CSVReader
+{
+  public:
+    CSVReader();
+    static std::vector<OrderBookEntry> readCSV(std::string csvFile);
+  private:
+    static std::vector<std::string> tokenise(std::string csvLine, char separator);
+    static OrderBookEntry stringsToBE(std::vector<std::string> strings);
+};

CM2005 Object Oriented Programming/Topic 3/3.4.2/MerkelMain.cpp

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+#include "MerkelMain.h"
+#include <iostream>
+#include <vector>
+#include "OrderBookEntry.h"
+
+MerkelMain::MerkelMain()
+{
+
+
+}
+
+void MerkelMain::init()
+{
+    loadOrderBook();
+    int input;
+    while(true)
+    {
+        printMenu();
+        input = getUserOption();
+        processUserOption(input);
+    }
+}
+
+void MerkelMain::loadOrderBook()
+{
+
+    orders.push_back(  OrderBookEntry{1000, 
+                          0.02, 
+                        "2020/03/17 17:01:24.884492", 
+                        "BTC/USDT", 
+                        OrderBookType::bid}    );
+
+    orders.push_back(  OrderBookEntry{2000, 
+                          0.02, 
+                        "2020/03/17 17:01:24.884492", 
+                        "BTC/USDT", 
+                        OrderBookType::bid}    );
+     
+}
+
+void MerkelMain::printMenu()
+{
+    // 1 print help
+    std::cout << "1: Print help " << std::endl;
+    // 2 print exchange stats
+    std::cout << "2: Print exchange stats" << std::endl;
+    // 3 make an offer
+    std::cout << "3: Make an offer " << std::endl;
+    // 4 make a bid 
+    std::cout << "4: Make a bid " << std::endl;
+    // 5 print wallet
+    std::cout << "5: Print wallet " << std::endl;
+    // 6 continue   
+    std::cout << "6: Continue " << std::endl;
+
+    std::cout << "============== " << std::endl;
+}
+
+void MerkelMain::printHelp()
+{
+    std::cout << "Help - your aim is to make money. Analyse the market and make bids and offers. " << std::endl;
+}
+
+void MerkelMain::printMarketStats()
+{
+    std::cout << "OrderBook contains :  " << orders.size() << "entries" << std::endl;
+}
+
+void MerkelMain::enterOffer()
+{
+    std::cout << "Mark and offer - enter the amount " << std::endl;
+}
+
+void MerkelMain::enterBid()
+{
+    std::cout << "Make a bid - enter the amount" << std::endl;
+}
+
+void MerkelMain::printWallet()
+{
+    std::cout << "Your wallet is empty. " << std::endl;
+}
+        
+void MerkelMain::gotoNextTimeframe()
+{
+    std::cout << "Going to next time frame. " << std::endl;
+}
+ 
+int MerkelMain::getUserOption()
+{
+    int userOption;
+
+    std::cout << "Type in 1-6" << std::endl;
+    std::cin >> userOption;
+    std::cout << "You chose: " << userOption << std::endl;
+    return userOption;
+}
+
+void MerkelMain::processUserOption(int userOption)
+{
+    if (userOption == 0) // bad input
+    {
+        std::cout << "Invalid choice. Choose 1-6" << std::endl;
+    }
+    if (userOption == 1) 
+    {
+        printHelp();
+    }
+    if (userOption == 2) 
+    {
+        printMarketStats();
+    }
+    if (userOption == 3) 
+    {
+        enterOffer();
+    }
+    if (userOption == 4) 
+    {
+        enterBid();
+    }
+    if (userOption == 5) 
+    {
+        printWallet();
+    }
+    if (userOption == 6) 
+    {
+        gotoNextTimeframe();
+    }       
+}

CM2005 Object Oriented Programming/Topic 3/3.4.2/MerkelMain.h

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+#pragma once
+
+#include <vector>
+#include "OrderBookEntry.h"
+
+class MerkelMain
+{
+    public:
+        MerkelMain();
+        /** Call this to start the sim */
+        void init();
+    private: 
+        void loadOrderBook();
+        void printMenu();
+        void printHelp();
+        void printMarketStats();
+        void enterOffer();
+        void enterBid();
+        void printWallet();
+        void gotoNextTimeframe();
+        int getUserOption();
+        void processUserOption(int userOption);
+
+
+        std::vector<OrderBookEntry> orders;
+
+};

CM2005 Object Oriented Programming/Topic 3/3.4.2/OrderBookEntry.cpp

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+#include "OrderBookEntry.h"
+
+OrderBookEntry::OrderBookEntry( double _price, 
+                        double _amount, 
+                        std::string _timestamp, 
+                        std::string _product, 
+                        OrderBookType _orderType)
+: price(_price), 
+  amount(_amount), 
+  timestamp(_timestamp),
+  product(_product), 
+  orderType(_orderType)
+{
+    
+}

CM2005 Object Oriented Programming/Topic 3/3.4.2/OrderBookEntry.h

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+#pragma once
+
+#include <string>
+
+enum class OrderBookType{bid, ask};
+
+class OrderBookEntry
+{
+    public:
+
+        OrderBookEntry( double _price, 
+                        double _amount, 
+                        std::string _timestamp, 
+                        std::string _product, 
+                        OrderBookType _orderType);
+
+
+        double price;
+        double amount;
+        std::string timestamp;
+        std::string product;
+        OrderBookType orderType;
+};

CM2005 Object Oriented Programming/Topic 3/3.4.2/main.cpp

@@ -0,0 +1,53 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include "OrderBookEntry.h"
+#include "MerkelMain.h"
+
+int main()
+{   
+    MerkelMain app{};
+    app.init();
+    
+}
+
+
+
+
+
+
+//     std::vector<OrderBookEntry> orders;
+
+//     orders.push_back(  OrderBookEntry{1000, 
+//                           0.02, 
+//                         "2020/03/17 17:01:24.884492", 
+//                         "BTC/USDT", 
+//                         OrderBookType::bid}    );
+
+//     orders.push_back(  OrderBookEntry{2000, 
+//                           0.02, 
+//                         "2020/03/17 17:01:24.884492", 
+//                         "BTC/USDT", 
+//                         OrderBookType::bid}    );
+        
+
+//    // std::cout << "The price is " << orders[1].price << std::endl;
+
+//     for (OrderBookEntry& order : orders)
+//     {
+//         std::cout << "The price is " << order.price << std::endl;
+//     }
+
+//     for (unsigned int i = 0; i < orders.size() ; ++i)
+//     {
+//         std::cout << "The price is " << orders[i].price << std::endl;
+//     }
+
+//     for (unsigned int i = 0; i < orders.size() ; ++i)
+//     {
+//         std::cout << "The price is " << orders.at(i).price << std::endl;
+//     }
+
+
+
+

CM2005 Object Oriented Programming/Topic 3/3.4.2/test.cpp

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+#include <string>
+#include <vector>
+#include <iostream>
+#include <fstream>
+
+std::vector<std::string> Tokenise(std::string csvLine, char separator)
+{
+  std::vector<std::string> tokens;
+  signed int start, end;
+  std::string token;
+  start = csvLine.find_first_not_of(separator, 0);
+  do
+  {
+    end = csvLine.find_first_of(separator, start);
+    if(start == csvLine.length() || start == end) break;
+    if(end >= 0)
+      token = csvLine.substr(start, end - start);
+    else
+      token = csvLine.substr(start, csvLine.length() - start);
+    
+    tokens.push_back(token);
+    start = end + 1;
+  } while (end > 0);
+  return tokens;
+}
+
+int main()
+{
+  std::string filename = "20200317.csv";
+  std::string line;
+  std::ifstream csvFile{filename};
+
+  std::vector<std::string> tokens;
+
+  if(csvFile.is_open())
+  {
+    std::cout << "File open" << std::endl;
+    while(std::getline(csvFile, line))
+    {
+      std::cout << "Read line: " << line << std::endl;
+      tokens = Tokenise(line, ',');
+      if(tokens.size() != 5) //bad
+      {
+        std::cout << "Bad line" << std::endl;
+        continue;
+      }
+      double price{};
+      double amount{};
+      // We checked and we have 5 tokens
+      try
+      {
+        price = std::stod(tokens[3]);
+        amount = std::stod(tokens[4]);
+        std::cout << price << std::endl;
+        std::cout << amount << std::endl;
+      }
+      catch(std::exception& e)
+      {
+        //error reading file
+        std::cout << "ERROR" << std::endl;
+      }
+      break;  // can be removed to read all lines in the csv
+    }
+    csvFile.close();
+  }
+  else
+  {
+    std::cout << "Could not open file" << std::endl;
+  }
+
+  return 0;
+}