/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/cppFiles/main.cc to edit this template
 */

/* 
 * File:   main.cpp
 * Author: caleb
 *
 * Created on February 26, 2024, 11:30 AM
 */
#include <iomanip>
#include <cstdlib>
#include <iostream>
#include <tuple>
#include <cmath>
#include <boost/algorithm/string.hpp>
#include <regex>
#include <vector>
using namespace std;

/*
 * 
 */

int milesPerGallon(int gallons, int milesDriven) {
    return milesDriven / gallons;
}

std::tuple<double, double> maleFemalePercentages(int maleStudents, int femaleStudents) {
    int totalStudents = maleStudents + femaleStudents;
    double malePercentage = (double) maleStudents / totalStudents;
    double femalePercentage = (double) femaleStudents / totalStudents;
    return {malePercentage, femalePercentage};
}

double celciusToFahrenheit(double celcius) {
    return 9.0 / 5.0 * celcius + 32.0;
}

std::string getMonthName(int month) {
    std::string returnString = "";
    switch (month) {
        case 1:
            returnString = "January";
            break;
        case 2:
            returnString = "February";
            break;
        case 3:
            returnString = "March";
            break;
        case 4:
            returnString = "April";
            break;
        case 5:
            returnString = "May";
            break;
        case 6:
            returnString = "June";
            break;
        case 7:
            returnString = "July";
            break;
        case 8:
            returnString = "August";
            break;
        case 9:
            returnString = "September";
            break;
        case 10:
            returnString = "October";
        case 11:
            returnString = "November";
            break;
        case 12:
            returnString = "December";
            break;
    }
    return returnString;
}

void prettyPrintSalesTax(int month, int year, int total, double totalIncome, double stateSalesTax, double countySalesTax, double totalSalesTax) {
    printf("%s %d\n", getMonthName(month).c_str(), year);
    printf("---------------------------------------\n");
    printf("Total collected:%*c$ %.2f\n", 5, totalIncome);
    printf("Sales:%*c$ %.2f\n", 16, stateSalesTax);
    printf("County Sales tax:%*c$ %.2f\n", 5, countySalesTax);
    printf("Total sales tax:%*c$ %.2f\n", 6, totalSalesTax);
}

void monthlySalesTax(int month, int year, double total) {
    double totalIncome = total / 1.06;
    double stateSalesTax = total * 0.04;
    double countySalesTax = total * 0.02;
    double totalSalesTax = stateSalesTax + countySalesTax;
    prettyPrintSalesTax(month, year, total, totalIncome, stateSalesTax, countySalesTax, totalSalesTax);
}

bool is_integer(const std::string & s) {
    return std::regex_match(s, std::regex("[-+]?[0-9]+"));
}

void mathTutor() {
    string userInput = "";
    int rand1, rand2 = 0;
    do {
        cout << "Enter Q/q to quit." << endl;
        rand1 = (rand() % 100);
        rand2 = (rand() % 100);
        cout << "What's " << rand1 << " + " << rand2 << "?" << endl;
        cin >> userInput;
        boost::algorithm::to_lower(userInput);

        if (is_integer(userInput)) {
            if (rand1 + rand2 == stoi(userInput)) {
                cout << "You are correct!" << endl;
            } else {
                cout << "Sorry, the answer is " << (rand1 + rand2) << ". Try again." << endl;
            }
        }
    } while (userInput.compare("q") != 0);
}

void prettyPrintMonthlyPayments(double payment, double rate, double numOfPayments, double loanAmount, double annualRate, double amountPaid, double amountPaidBack) {
    printf("---------------------------------------\n");
    printf("Loan amount:%*c$ %.2f\n", 15, loanAmount);
    printf("Monthly Interest Rate:%*c%.0f%%\n", 14, rate);
    printf("Number of Payments:%*c%.0f\n", 17, numOfPayments);
    printf("Monthly Payment:%*c$ %.2f\n", 12, payment);
    printf("Amount Paid Back:%*c$ %.2f\n", 11, amountPaidBack);
    printf("Interest Paid:%*c$  %.2f\n", 14, amountPaid);
}

void monthlyPayments(double annualRate, double numOfPayments, double loanAmount, double amountPaid, double amountPaidBack) {
    double rate = (annualRate / 12.0);
    double topHalf = rate * pow((1.0 + rate), numOfPayments);
    double bottomHalf = pow((1.0 + rate), numOfPayments) - 1.0;
    double payment = (topHalf / bottomHalf) * loanAmount;
    prettyPrintMonthlyPayments(payment, rate, numOfPayments, loanAmount, annualRate, amountPaid, amountPaidBack);
}

// Function to replace placeholders in the story with user inputs
std::string replacePlaceholders(const std::string& story, const std::vector<std::string>& inputs) {
    std::string result = story;
    std::regex placeholderRegex("<([^>]+)>");
    auto inputIter = inputs.begin();

    for (std::sregex_iterator iter(story.begin(), story.end(), placeholderRegex), end; iter != end; ++iter) {
        const std::string& placeholder = iter->str();
        if (inputIter != inputs.end()) {
            result.replace(result.find(placeholder), placeholder.length(), *inputIter);
            ++inputIter;
        } else {
            // Handle the case where there are more placeholders than inputs
            break;
        }
    }
    return result;
}

void madLib() {
    string storyTemplate = "There once was a person named <name> who lived in <city>. At the age of <age>, <name> went to a collage at <college>. <Name> graduated and went to work as a <profession>. Then, <name> adopted a(n) <animal> named <pet name>. They both lived happily ever after!";
    
    std::regex placeholderRegex("<([^>]+)>");
    std::vector<std::string> placeholders;
    for (std::sregex_iterator iter(storyTemplate.begin(), storyTemplate.end(), placeholderRegex), end; iter != end; ++iter) {
        placeholders.push_back(iter->str());
    }
    
    std::vector<std::string> inputs;
    for (const auto& placeholder : placeholders) {
        std::string input;
        std::cout << "Enter " << placeholder << ": ";
        std::getline(std::cin, input);
        inputs.push_back(input);
    }
    
     // Replace placeholders with user inputs and print the complete story
    std::string completedStory = replacePlaceholders(storyTemplate, inputs);
    std::cout << "Completed story:\n" << completedStory << std::endl;
    
}

int main(int argc, char** argv) {
    cout << "The car that drove 375 miles and burned 15 gallons of gasoline consumed the fuel at a rate of " << milesPerGallon(15, 375) << " MPG.\n";
    int maleStudents, femaleStudents = 0;
    //double malePercentage, femalePercentage = 0.0;
    cout << "Enter the number of male students, followed by the number of female students: ";
    //cin >> maleStudents >> femaleStudents;
    //auto [malePercentage, femalePercentage] = maleFemalePercentages(maleStudents, femaleStudents);
    //cout << "The ratio of male to female students is " << setprecision(2) << (malePercentage * 10) << "/" << setprecision(2) <<(femalePercentage * 10) << endl;
    cout << "0C is " << std::to_string(celciusToFahrenheit(0)) << "F." << endl;
    cout << "100C is " << std::to_string(celciusToFahrenheit(100)) << "F." << endl;
    cout << "23.8889C is " << std::to_string(celciusToFahrenheit(23.8889)) << "F." << endl;
    monthlySalesTax(3, 2024, 100000.08);
    //mathTutor();
    monthlyPayments(12, 36, 10000.00, 1957.15, 11957.15);
    madLib();
    return 0;
}