prediction-engine/addData.cpp at master · L-Bot-AU/prediction-engine · GitHub

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#include <iostream>
#include <fstream>
#include "include\nlohmann\json.hpp"
#include <string>
#include <iomanip>

using json = nlohmann::json;
using namespace std;

float take_valid_float(string input_request){
    bool valid = false;
    float input;
    do {
        cout << input_request;
        cin >> input;

        if (cin.good()) {
            valid = true;
        } else {
            cin.clear();
            cin.ignore(numeric_limits<streamsize>::max(),'\n');
            cout << "Invalid input; please re-enter.\n";
        }
    } while (!valid);
    return input;
}

int take_valid_integer(string input_request){
    bool valid = false;
    int input;
    do {
        cout << input_request;
        cin >> input;

        if (cin.good()) {
            valid = true;
        } else {
            cin.clear();
            cin.ignore(numeric_limits<streamsize>::max(),'\n');
            cout << "Invalid input; please re-enter.\n";
        }
    } while (!valid);
    return input;
}

int main(){
    const string location = "calcData.json";
    const string days[5] = {"Mon", "Tue", "Wed", "Thu", "Fri"};
    ifstream fin {location};

    string library;
    int year, b;
    float m;
    json data;
    fin >> data;
    char choice = 'y';
    while (choice == 'y') {
        library = "";
        cout << "Enter Library Jnr/Snr: ";
        cin >> library;
        while (library != "Jnr" && library != "Snr") {
            cout << "Invalid input please retner library (Jnr/Snr): ";
            cin >> library;
            library[0] = toupper(library[0]);
            library[1] = tolower(library[1]);
            library[2] = tolower(library[2]);
        }

        bool valid = false;
        do {
            cout << "Enter year: ";
            cin >> year;

            if (cin.good()) {
                if (year > 2010) {
                    valid = true;
                } else {
                    cout << "Value entered for year too low re-enter.\n";
                }
            } else {
                cin.clear();
                cin.ignore(numeric_limits<streamsize>::max(), '\n');
                cout << "Invalid input; please re-enter.\n";
            }
        } while (!valid);

        for (int i = 1; i < 5; i++) { /*For the 4 terms*/
            for (int j = 0; j < z5; j++) { /*Each day of week*/
                cout << "For term " << i << " " << days[j] << " enter the following values for:";
                cout << "\n\tbefore school:\n";
                m = take_valid_float("\tGradient (m): ");
                b = take_valid_integer("\tConstant (b): ");
                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["bs"]["m"] = m;
                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["bs"]["b"] = b;

                cout << "\n\tbreak 1:\n";
                m = take_valid_float("\tGradient (m): ");
                b = take_valid_integer("\tConstant (b): ");
                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["b1"]["m"] = m;
                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["b1"]["b"] = b;

                cout << "\n\tbreak 2:\n";
                m = take_valid_float("\tGradient (m): ");
                b = take_valid_integer("\tConstant (b): ");

                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["b2"]["m"] = m;
                data[library][to_string(year)]["Term"+to_string(i)][days[j]]["b2"]["b"] = b;
            }
        }
        ofstream fout{location};
        fout << setw(4) << data;
        cout << "Data saved, continue to add more data (y/n): ";
        cin >> choice;
    }
}