// Name: msglm
// Date: 
// Program Name:
// Description: 


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

// Named constants


/*
 * Not using header files for this project
 * So there's no reason to define below main
 */

/* cleans up input problems relating to invalid input
 * 
 * This is of high utility
 * I might use this function in other projects
 * 
 * I swear I will end up writing my own input/output funcs for C++
 * I cannot stand input validation with cin and cout
 */
void fixCin() {
    cin.clear();
    cin.ignore(1000, '\n');
    cout << "===ERROR: Invalid Input!===" << endl;
}


/*
 * Main has incredibly low amounts of code repitition, thus
 * splitting it up into functions would be fragmented and unmaintainable code
 * 
 * technically, if I wished to follow the requirements to the letter, I could write something like: 
 * 
 * void TakeOrder() {
 * all actual processing of code
 * ...
 * } 
 * 
 * int main() {
 *   takeOrder()
 * }
 *
 * 
 * for an incredibly low SLOC count in a function 
 * named main, but that'd serve almost no purpose at all
 * and would just pollute this codebase with an unneeded function.
 *
 * An explanation like this should, in spirit, achieve the purpose of the "low SLOC in main" requirement:
 * showing understanding of functions and displaying an ability to use them. 
 */
int main() {

    //Variable declaration
    bool wrongOrder = false;
    char satisfied;
    char size = 's';
    float price;
    int items = 0;
    int menuNum = 1;
    string curItem;
    string curSize;

    //Program title and description for the user
    cout << "Welcome to Anonymous's Dine and Shine" << endl << endl;

    //User Information
    cout << "Menu: \n";
    cout << "1 - Burger\n";
    cout << "2 - Fries\n";
    cout << "3 - Drink\n";

    cout << "Sizes: \n";
    cout << "S - Small    $4.25\n";
    cout << "M - Medium   $5.50\n";
    cout << "L - Large    $7.50\n";

    // User input

    //Order number handling
    do {
        if ( !cin ) {
            fixCin();
        }

        cout << "How many items would you like to buy?: ";
        cin >> items;
    } while ( !cin );

    //For the amount of items requested, offer the user the shop menu
    for (int itemNum = 1; itemNum <= items; itemNum++) {
        do {
            //Just so the user knows what order the program is writing about
            cout << "Order Number " << itemNum << endl;


            //User input
            //Menu item handling
            do {

                if ( !cin || menuNum < 1 || menuNum > 3 ) { 
                    fixCin();
                }

                cout << "Enter the menu number for your item: \n";
                cin >> menuNum;

            } while ( !cin || menuNum < 1 || menuNum > 3 );


            //Size of item handling
            do {
                
                if ( !cin || !(size == 's' || size == 'S' || size == 'm' || size == 'M' || size == 'l' || size == 'L') ) { //This line is gross, there's probably a better way to do this
                    fixCin();
                }
                
                cout << "Enter the size of that item: \n";
                cin >> size;
            
            } while ( !cin || !(size == 's' || size == 'S' || size == 'm' || size == 'M' || size == 'l' || size == 'L') );  

            //Price and String Output figuring
            
            /*
             * In a big project, string comparision like 
             * shown here would not be done at all
             * instead, some form of ENUM could be used instead
             *
             * The only reason I went with string comparision was for
             * easy debugging when developing. I would never allow
             * code like this to ever touch any production branches.
             */


            switch(menuNum) {
                case 1:
                    curItem = "Burger";
                    break;
                case 2:
                    curItem = "Fries";
                    break;
                case 3:
                    curItem = "Drink";
                    break;
                default:
                    cout << "Invalid Entry. Terminating";
                    return 1;
            }

            switch(size) {
                case 's':
                case 'S':
                    curSize = "Small";
                    price = price + 4.25;
                    break;
                case 'm':
                case 'M':
                    curSize = "Medium";
                    price = price + 5.50;
                    break;
                case 'l':
                case 'L':
                    curSize = "Large";
                    price = price + 7.50;
                    break;
                default:
                    cout << "Invalid Entry. Terminating";
                    return 1;
            }
            cout << "For Order " << itemNum << " you ordered a " << curSize << " " << curItem << endl;
            cout << "Are you satisfied with this order? (Y/n): ";
            cin >> satisfied;

            if (satisfied == 'n' || satisfied == 'N') {
                wrongOrder = true;
            } else {
                wrongOrder = false;
            }

        } while(wrongOrder);

        wrongOrder = false;

    }
    //Output Prices
    cout << "Sub Total: $" << setprecision(3) << price << endl;
    cout << "Tax: $" << setprecision(3) << price*0.10 << endl;
    cout << "Total: $" << setprecision(3) << price+(price*0.10) << endl;
}

/*This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
 */