#include <iostream>
#include <string>
#include <cctype>

using namespace std;

/*    Dallin Smith, CS 142, Section 002, dallinsmith27@gmail.com

      Test case #1
INPUT:
This is a test!
y

EXPECTED OUTPUT:
Welcome to the Simple Editor. Enter a string to be edited:
This is a test!

Do you want to make this string a sentence (y/n)?
This is a test!

      Test case #2
INPUT:
this is a test
n
n
find
is
delete

EXPECTED OUTPUT:
Welcome to the Simple Editor. Enter a string to be edited:
this is a test

Do you want to make this string a sentence (y/n)?
Do you want to insert more text into your current text (y/n)?
If you would like to find/replace or copy/paste, enter find or copy:
Enter substring to find:
Do you want to find if/where the substring occurs, delete it, or replace it (find, delete, replace)?
Final text is
th is a test

      Test case #3
INPUT:
this is a test
n
n
find
cheese
delete

EXPECTED OUTPUT:
Welcome to the Simple Editor. Enter a string to be edited:
this is a test

Do you want to make this string a sentence (y/n)?
Do you want to insert more text into your current text (y/n)?
If you would like to find/replace or copy/paste, enter find or copy:
Enter substring to find:
Do you want to find if/where the substring occurs, delete it, or replace it (find, delete, replace)?
cheese was not found.
Final text is
this is a test
*/


int main() {


   string userInput;
   string insertText;
   char userAnswer = 'n';
   int insertPos = 0;
   string userAnswer2;
   string userFind;
   string userAnswer3;
   string replaceInput;
   int copyPosition = 0;
   int copyLength = 0;
   int pastePosition = 0;

   cout << "Welcome to the Simple Editor. Enter a string to be edited: " << endl;
   getline(cin,userInput);
   cout << userInput << endl << endl;
   cout << "Do you want to make this string a sentence (y/n)?" << endl;
   cin >> userAnswer;


   if (userAnswer == 'y'){
      userInput.at(0) = toupper(userInput.at(0));
      userInput.push_back('.');
      cout << userInput << endl << endl;
   }
   else{}

   cout << "Do you want to insert more text into your current text (y/n)?" << endl;
   cin >> userAnswer;
   cin.ignore();

   if (userAnswer == 'y'){
      cout << "Enter text to be inserted: " << endl;
      getline(cin, insertText);
      cout << "Enter position where text is to be inserted: " << endl;
      cin >> insertPos;
      cin.ignore();
      if (insertPos >=0 && insertPos <= userInput.size()){
         userInput = userInput.insert(insertPos, insertText);
         cout << userInput << endl << endl;
      }

      else {
         cout << "No change made. Position must be non-negative and not exceed 14, the length of the current text." << endl;
         }
   }

   else{}

   cout << "If you would like to find/replace or copy/paste, enter find or copy: " << endl;
   getline(cin, userAnswer2);

   if (userAnswer2 == "find"){
   cout << "Enter substring to find: " << endl;
   getline(cin, userFind);
   cout << "Do you want to find if/where the substring occurs, delete it, or replace it (find, delete, replace)?" << endl;
   getline(cin, userAnswer3);

      if (userAnswer3 == "find"){
         if (userInput.find(userFind) == string::npos){
            cout << userFind << " was not found." << endl;
         }
         else {
            cout << userFind << " was found at position " << userInput.find(userFind) << "." << endl;
         }
      }

      else if (userAnswer3 == "delete"){
          if (userInput.find(userFind) == string::npos){
            cout << userFind << " was not found. No change made." << endl;
         }
          else {userInput.replace(userInput.find(userFind),userFind.size(),"");
          }
      }

      else if (userAnswer3 == "replace"){
         if (userInput.find(userFind) == string::npos){
            cout << userFind << " was not found. No change made." << endl;
         }

          else {
          cout << "Enter replacement string: " << endl;
          getline(cin, replaceInput);
          userInput.replace(userInput.find(userFind),userFind.size(),replaceInput);
          }
      }

      else {}
   }

    else if (userAnswer2 == "copy"){
      cout << "Enter position and length of text to be copied, and position for paste: " << endl;
      cin >> copyPosition;
      cin >> copyLength ;
      cin >> pastePosition;
         if (copyPosition >= 0 && copyLength > 0 && pastePosition >= 0 && pastePosition <= userInput.length() && copyLength <= userInput.length()){
         userInput = userInput.insert(pastePosition, userInput.substr(copyPosition, copyLength));
         }

         else {
            cout << "Values entered do not support copy/paste." << endl;
            }
    }

    else{}

    cout << "Final text is" << endl;
    cout << userInput << endl;


   return(0);

   }