// BlankConsoleLab.cpp : This file contains the 'main' function. Program execution begins and ends there.
/*
* Benjamin Smith
* CST116 Lab 2
*/

#include <iostream>
#include<math.h>

using namespace std;


const float temp_min_F = -80, temp_max_F = 121, temp_min_C = -61, temp_max_C = 49.5, wind_min = 0, wind_max = 231;
string input = "";
float temperature = 0, wind_speed = 0, wind_chill = 0;;

float Temp_Conversion(float temp) {
	temp *= 1.8;
	temp += 32;
	return temp;
}
float Wind_Chill(float temp, float speed) {
	return 35.74 + (.6215 * temp) - (35.75 * pow(speed, .16)) + (.4275 * temp * pow(speed, .16));
}

int main()
{
	//Temperature type input
	cout << "Before you input a temperature value, you must first determine if it's in fahrenheit or celsius." << endl;
	cout << "Please input 'F' for fahrenheit or 'C' for celsius: ";
	cin >> input;
	while (input != "F" && input != "C") {
		cout << "That input is invalid." << endl;
		cout << "Make sure your input is capitalized." << endl;
		cout << "Please input 'F' for fahrenheit or 'C' for celsius: ";
		cin >> input;
	}
	
	//Temperature value input
	if (input == "C")
		cout << endl << endl << "Now please input a temperature between the range " << temp_min_C << " to " << temp_max_C << ": ";
	if (input == "F")
		cout << endl << endl << "Now please input a temperature between the range " << temp_min_F << " to " << temp_max_F << ": ";
	cin >> temperature;
	if (input == "C") {
		while (temperature < temp_min_C || temperature > temp_max_C) {
			cout << endl;
			cout << "That input is invalid." << endl << "Your value must be between " << temp_min_C << " and " << temp_max_C << "." << endl;
			cout << "Please input the temperature again: ";
			cin >> temperature;
		}
	}
	else {
		while (temperature < temp_min_F || temperature > temp_max_F) {
			cout << endl;
			cout << "That input is invalid." << endl << "Your value must be between " << temp_min_F << " and " << temp_max_F << "." << endl;
			cout << "Please input the temperature again: ";
			cin >> temperature;
		}
	}

	//Wind Speed value input
	cout << endl << endl << "Now please input a wind speed between the range " << wind_min << " to " << wind_max << ": ";
	cin >> wind_speed;
	while (wind_speed < wind_min || wind_speed > wind_max) {
		cout << endl;
		cout << "That input is invalid." << endl << "Your value must be between " << wind_min << " and " << wind_max << "." << endl;
		cout << "Please input the wind speed again: ";
		cin >> wind_speed;
	}

	//Convert Celsius to Fahrenheit
	if (input == "C")
		Temp_Conversion(temperature);

	//Calculate the Wind Chill
	wind_chill = Wind_Chill(temperature, wind_speed);

	cout << endl << endl << endl << wind_chill;
}