#include<iosfwd>
#include<string>

using namespace std;

#include "expression.h"
#include "parser.h"
#include "int_parser.h"
#include "img_parser.h"
#include "bool_parser.h"

void arithmetica() {
	string line;
	IntParser myParser;
	int linecount(1);
	cout << "Welcome to Arithmetica" << endl;
	while(1)
	{
		printf("%d-> ",linecount++);
		getline(cin,line);
		if(line == ".") break;
	    if(line == "help") myParser.Help();
	    else{
	    	Expression<int> * expr = myParser.Process(line);
	    	//cout << "Got this far. " << endl;
	    	if(expr != 0){
	    		cout << expr->evaluate() << endl; 
	    		cout << expr->toString() << endl;
	    	}
	    }
	}
	return;
}

void imagemetica ()
{
	string line;
	ImgParser myParser;
	int linecount(1);
	cout << "Welcome to Imagemetica" << endl;
	while(printf("%d-> ",linecount++) && getline(cin,line) && line != ".")
	{
	    if(line == "help") myParser.Help();
	    Expression<Image> * expr = myParser.Process(line);
	    if(expr != 0) myParser.display(expr->evaluate()); 
	}
	return;
}


void boolmetica ()
{
	string line;
	BoolParser myParser;
	int linecount(1);
	cout << "Welcome to BoolMetica" << endl;
	while(printf("%d-> ",linecount++) && getline(cin,line) && line != ".")
	{
	    if(line == "help") myParser.Help();
	    Expression<bool> * expr = myParser.Process(line);
	    if(expr != 0) cout << expr->evaluate() << endl; 
	}
	return;
}

int main ()
{
	cout << "Welcome to OOLALA\n";
	while(1) 
	{
		cout << "What would you like to play?\n";
		cout << "1) Arithmetica\n2) BoolMetica\n3) Imagemetica\n";
		cout << ". quit  (1,2,3, .)\n";
	
		string choice;
		getline(cin,choice);
	
		switch(choice[0])
		{
			case('1'):
				arithmetica();
				break;
			case('2'):
				boolmetica();
				break;
			case('3'):
				imagemetica();
				break;
			case('.'):
				return 0;
			default:
				cout << "Please enter a valid choice." << endl << endl;
		}
	}		
	
	return 0;
}