oop244/ShoppingList.cpp at main · alikhan1998/oop244 · GitHub

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#include <iostream>
#include "ShoppingRec.h"
#include "ShoppingList.h"
#include "File.h"
#include "Utils.h"
using namespace std;
namespace sdds {
bool loadList() {
   ShoppingRec shpr = {};
   bool ok = false;
   if (openFileForRead()) {
      ok = true;
      while (noOfRecs < MAX_NO_OF_RECS &&
         freadShoppingRec(&shpr)) {
         recs[noOfRecs++] = shpr;
      }
      closeFile();
   }
   return ok;
}
bool saveList() {
   bool ok = false;
   if (openFileForOverwrite()) {
      ok = true;
      for (int i = 0; i < noOfRecs; i++) {
         fwriteShoppintRec(&recs[i]);
      }
      closeFile();
   }
   return ok;
}

void removeItem(int index) {
   if (index >= 0 && index < noOfRecs) {
      noOfRecs--;
      for (int i = index; i < noOfRecs; i++) {
         recs[i] = recs[i + 1];
      }
   }
}
void clearList() {
   cout << "This will remove all the items from the list;" << endl
      << "Are you sure? (Y)es/(N)o" << endl;
   if (yes()) {
      noOfRecs = 0;
   }
   else {
      cout << "Cancelled!" << endl;
   }
}

void toggleBought() {
   cout << "Item number: ";
   toggleBoughtFlag(&recs[readInt(1, noOfRecs) - 1]);
}

void addItemToList() {
   if (noOfRecs < MAX_NO_OF_RECS) {
      recs[noOfRecs] = getShoppingRec();
      noOfRecs += !isShoppingRecEmpty(&recs[noOfRecs]);
   }
   else {
      cout << "Shopping List is full!" << endl;
   }
}

void removeItemfromList() {
   if (!listIsEmpty()) {
      int value = 0;
      cout << "Item number to delete: ";
      value = readInt(1, noOfRecs);
      cout << "Deleting following item, are you sure?" << endl;
      displayShoppingRec(&recs[value - 1]);
      cout << "(Y)es/(N)o: ";
      if (yes()) {
         removeItem(value - 1);
      }
      else {
         cout << "Cancelled!" << endl;
      }
   }
   else {
      cout << "List is empty!" << endl;
   }

}

bool listIsEmpty() {
   return noOfRecs == 0;
}

void displayList() {
   for (int i = 0; i < noOfRecs; i++) {
      cout << (i + 1) << "-";
      displayShoppingRec(&recs[i]);
   }
}

void removeBoughtItems() {
   if (!listIsEmpty()) {
      cout << "Removing bought items, are you sure?" << endl;
      cout << "(Y)es/(N)o: ";
      if (yes()) {
         for (int i = 0; i < noOfRecs; i++) {
            if (recs[i].m_bought) removeItem(i--);
         }
      }
      else {
         cout << "Cancelled!" << endl;
      }
   }
   else {
      cout << "List is empty!" << endl;
   }
}
}