/*
Mike Riggio
9/23/2000
TA: 67-2
Lab3
-----------
Method:

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Testing:

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*/

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

int getHouseNum();
string getHouseAve();
int calcCrossStreet(int, string);
int calcFifth(int);

main(){

	//variables
	int houseNum;
	string houseAve;
	int crossStreet;

	houseNum = getHouseNum();
	houseAve = getHouseAve();

	crossStreet = calcCrossStreet(houseNum, houseAve);

	if(crossStreet != -1){
		//display address and nearest cross street
		cout<<houseNum<<" "<<houseAve<<" Ave is near ";
		cout<<crossStreet<<" street.\n";
	}else{
		//invalid address, so display error message
		cout<<houseNum<<" "<<houseAve<<" Ave is an invalid address.\n";
	}

	return 0;

}

//functions
//-----------------------------------------------------

int getHouseNum(){
	//prompts user for the house number

	int houseNum;

	cout<<"What is the house number? ";
	cin>>houseNum;

	return houseNum;

}

string getHouseAve(){
	//prompts user for the house avenue

	string houseAve;

	cout<<"What is the house avenue? ";
	cin>>houseAve;

	return houseAve;

}

int calcCrossStreet(int houseNum, string houseAve){

	int fifth;

	if(houseNum > 0){
		switch(static_cast<int>(houseAve)){
			case 'a':
			case 'A':
			case 'b':
			case 'B':
			case 'c':
			case 'C':
			case 'd':
			case 'D':
			case '1':
			case '2':
				return ((houseNum / 10) / 2) + 3;
			case '3':
				return ((houseNum / 10) / 2) + 10;
			case '4':
				return ((houseNum / 10) / 2) + 8;
			case '5':
				fifth = calcFifth(houseNum);
				if(fifth != -1)
					return -1;
				else
					return fifth;
			case '6':
				return ((houseNum / 10) / 2) + 17;
			case '7':
				return ((houseNum / 10) / 2) + 3;
			case '8':
				return ((houseNum / 10) / 2) + 10;
			case '9':
				return ((houseNum / 10) / 2) + 13;
			case 't':
			case 'T':
				return ((houseNum / 10) / 2) + 14;
			default:
				return -1;
		}//end switch statement
	}else
		return -1;

}//end calcCrossStreet

int calcFifth(int houseNum){

	if(houseNum <= 200)
		return ((houseNum / 10) / 2) + 13;
	else if(houseNum > 200 && houseNum <= 400)
		return ((houseNum / 10) / 2) + 16;
	else if(houseNum > 400 && houseNum <= 600)
		return ((houseNum / 10) / 2) + 18;
	else if(houseNum > 600 && houseNum <= 775)
		return ((houseNum / 10) / 2) + 20;
	else if(houseNum > 775 && houseNum <= 1286)
		return (houseNum / 10) - 13;
	else if(houseNum > 1286 && houseNum <= 1500)
		return ((houseNum / 10) / 2) + 45;
	else if(houseNum >= 2000)
		return ((houseNum / 10) / 2) + 24;
	else
		return -1;

}