//Code C++ In One Day Chapter4
//C++ In One Day: The Ultimate Beginners Guide To C++ With 7 Awesome Projects by Ean, W.B. 

#include <iostream> 
#include <string> 
#include <vector> 
using namespace std; 

// Declaring the function used, not included in the book
// If omitted, then the whole function block must reside here
void NewContact();
void SearchByID(); 
void SearchByName();

vector <string> Names; 
vector <string> Phones; 

int main() 
{ 
	int sel = 0; 
	while( true) 
	{ 
		cout <<"My Agenda + +\n\n"; 
		cout <<"Choose a number to execute an option\n\n"; 
		cout <<"[ 1] New Contact\n"; 
		cout <<"[ 2] Search by ID\n"; 
		cout <<"[ 3] Search by Name\n"; 
		cout <<"[ 4] Exit\n"; 
		cout <<"Your choice: "; 
		
		cin>> sel; 
		switch( sel) 
		{ 
			case 1:  NewContact(); break;
			case 2: SearchByID(); break;  
			case 3: SearchByName(); break;
		} 
		if( sel == 4) 
		{ 
			break; 
		} 
	} 
	
	return 0; 
} 

void NewContact() 
{ 
	string name; 
	string phone; 
	
	cout <<"\n\nEnter a name for the contact: "; cin>> name; 
	cout <<"Enter the phone for this contact: "; cin>> phone; 
	cout <<"The ID for this contact will be " <<Names.size() <<"\n\n"; 
	Names.push_back( name); 
	Phones.push_back( phone); 
} 

void SearchByID() 
{ 
	int value; cout <<"\n\nEnter the ID of the contact to search: "; cin>> value; 
	if( value>= Names.size()) 
	{ 
		cout <<"This ID does not exist\n\n"; 
		return; 
	} 
	cout <<"Information for contact " <<value <<"\n"; 
	cout <<"Name: " <<Names[ value] <<"\n"; 
	cout <<"Phone: " <<Phones[ value] <<"\n"; 
} 

void SearchByName() 
{ 
	bool found = false; 
	string name; 
	cout <<"\n\nEnter the name to search: "; cin>> name; 
	for( int i = 0; i != Names.size(); i++) 
	{ 
		if( Names[ i] == name) 
		{ 
			cout <<"Name: " <<Names[ i] <<"\n"; 
			cout <<"Phone: " <<Phones[ i] <<"\n"; 
			found = true;
		} 
	} 
	
	if(! found) 
	{ 
		cout <<"No contact was found with this name!\n\n";
	} 
}