User interface up and running

ProjectEuler.ts

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+//ProjectEulerTS/ProjectEuler.ts
+//Matthew Ellison
+// Created: 10-18-20
+//Modified: 10-18-20
+//This is the driver function for the Java version of the ProjectEuler project
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/typescriptClasses
+/*
+	Copyright (C) 2020  Matthew Ellison
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+import { ProblemSelection } from "./ProblemSelection";
+import { Benchmark } from "./Benchmark";
+const readlineSync = require("readline-sync");
+
+
+//An enum to hold the possible menu selections
+enum SELECTIONS{SOLVE = 1, DESCRIPTION, LIST, BENCHMARK, EXIT, SIZE};
+
+class Driver{
+	//Drives the program
+	public static main(): void{
+		console.log("Welcome to ProjectEulerTS\nPress Enter to continue\n\n\n");
+		readlineSync.question("", {hideEchoBack: true});
+		//Holds the menu selection of the user
+		let selection: number;
+		do{
+			Driver.printMenu();
+			selection = Driver.getMenuSelection();
+
+			switch(selection){
+				case SELECTIONS.SOLVE: Driver.solveMenu(); break;
+				case SELECTIONS.DESCRIPTION: Driver.descriptionMenu(); break;
+				case SELECTIONS.LIST: ProblemSelection.listProblems(); break;
+				case SELECTIONS.BENCHMARK: Benchmark.benchmarkMenu(); break;
+				case SELECTIONS.EXIT: break;
+				case SELECTIONS.SIZE:
+				default: Driver.printErrorMessage();
+			}
+		}while(selection != SELECTIONS.EXIT);
+	}
+	//Print the menu
+	public static printMenu(): void{
+		console.log("1. Solve a problem");
+		console.log("2. Print a problem description");
+		console.log("3. List valid problem numbers");
+		console.log("4. Benchmark");
+		console.log("5. Exit");
+		console.log();
+	}
+	//Get a menu selection from the user
+	private static getMenuSelection(): SELECTIONS{
+		let selection: number;
+		let sel: string = readlineSync.question(' ');
+		while(!Driver.isValidMenu(sel)){
+			console.log("That is an invalid option!\n");
+			selection = Driver.getMenuSelection();
+		}
+		selection = parseInt(sel);
+		return selection;
+	}
+	//Make sure the value passed in is a valid menu option
+	private static isValidMenu(sel: string): boolean{
+		let selection: number;
+		try{
+			selection = parseInt(sel);
+		}
+		catch(error){
+			selection = -1;
+		}
+		if((selection > 0) && (selection < SELECTIONS.SIZE)){
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+	//Print an error message
+	private static printErrorMessage(): void{
+		console.log("That is an invalid selection!");
+	}
+	//Handle what happens when a user wants to solve a problem
+	private static async solveMenu(){
+		let problemNumber: number = ProblemSelection.getProblemNumber();
+		//This selection solves all problems in order
+		if(problemNumber == 0){
+			//Solve to every valid problem number, skipping over 0
+			for(let problemLocation: number = 1;problemLocation < ProblemSelection.PROBLEM_NUMBERS.length;++problemLocation){
+				//Solve the problems
+				console.log(ProblemSelection.PROBLEM_NUMBERS[problemLocation] + ". ");
+				ProblemSelection.solveProblem(ProblemSelection.PROBLEM_NUMBERS[problemLocation]);
+			}
+		}
+		//This is if a single problem number was chosen
+		else{
+			//Solve the problem
+			ProblemSelection.solveProblem(problemNumber);
+		}
+	}
+	//Handle what happens when a user wants to see the description of a problem
+	private static descriptionMenu(): void{
+		//Give some extra space to print the description
+		console.log("\n");
+
+		//Get the problem number
+		let problemNumber = ProblemSelection.getProblemNumber();
+
+		//If the problem number is 0 print out all the descriptions
+		if(problemNumber == 0){
+			//Print the description for every valid problem number, skipping over 0
+			for(let problemLocation: number = 1;problemLocation < ProblemSelection.PROBLEM_NUMBERS.length;++problemLocation){
+				//Print the problem's description
+				console.log(ProblemSelection.PROBLEM_NUMBERS[problemLocation] + ". ");
+				ProblemSelection.printDescription(ProblemSelection.PROBLEM_NUMBERS[problemLocation]);
+				console.log();
+			}
+		}
+		//Otherwise print out a single problem's description
+		else{
+			ProblemSelection.printDescription(problemNumber);
+		}
+	}
+}
+
+//Run the program
+Driver.main();