semi-functionning console interface

app/src/main/java/sudoku/io/ConsoleInterface.java

@@ -0,0 +1,139 @@
+package sudoku.io;
+
+import sudoku.constraint.*;
+import sudoku.solver.Solver;
+import sudoku.structure.Difficulty;
+import sudoku.structure.MultiDoku;
+import sudoku.structure.Sudoku;
+import sudoku.structure.SudokuFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+import java.util.Scanner;
+
+public class ConsoleInterface {
+    public Scanner reader = new Scanner(System.in);
+
+    public void start(){
+        welcome();
+        System.out.println("First of all, you need to tell me the size of the sudoku you want to generate.");
+        int width = getBlockWidth();
+        int height = getBlockHeight();
+        System.out.println("Your sudoku will have blocks of a " + width + " x " + height + " format.");
+        int numberOfSymbols = width * height;
+        System.out.println("Would you like to pick the " + numberOfSymbols + " symbols from the sudoku? (y/n, default 'no' will use numbers)" );
+        List<String> listSymbols = new ArrayList<>();
+        if(reader.next().equalsIgnoreCase("y")){
+            pickSymbols(listSymbols, numberOfSymbols);
+        }
+        else {
+            // TODO
+            System.out.println("Simon doit finir sa partie.");
+            assert false;
+        }
+        List<Constraint> listConstraints = getListConstraints();
+
+
+        System.out.println("Now that we have the size of our sudoku, would you rather have a single grid ('one', default), " +
+                "or a a multidoku composed of 5 subgrids ('multi') ?");
+        List<Sudoku> subGrids = new ArrayList<>();
+        MultiDoku doku;
+        if (reader.next().equalsIgnoreCase("multi")) {
+            doku = SudokuFactory.createBasicEmptyRectangleDoku(width, height, listConstraints);
+        }
+        else {
+            doku = SudokuFactory.createBasicXShapedMultidoku(width, height, listConstraints);
+        }
+        System.out.println("Your sudoku will look like this:");
+        // TODO printMultiDoku method not yet implemented
+        SudokuPrinter.printMultiDoku(doku, width, height);
+        System.out.println("We now will fill this sudoku.");
+        System.out.println("What level of difficulty would you like? ('very easy', 'easy', 'medium' (default), 'hard', 'full' (sudoku fully completed))");
+        String difficulty = reader.next().toLowerCase();
+        if (difficulty.equals("full")) {
+            generateFullDoku(doku);
+        }
+        else {
+            generatePartialDoku(doku, difficulty);
+        }
+        System.out.println("Here's your sudoku !");
+        SudokuPrinter.printMultiDoku(doku, width, height);
+    }
+
+    public void welcome(){
+        System.out.println("Welcome to our Sudoku Solver!");
+        System.out.println("This is the project of Melvyn Bauvent, Lilas Grenier and Simon Priblyski.");
+    }
+
+    public int getBlockWidth() {
+        System.out.println("Width of a block: ");
+        int widthBlock = reader.nextInt();
+        checkValidSize(widthBlock);
+        while (!checkValidSize(widthBlock)) {
+            System.out.println("That is not a valid width for a block. Try again:");
+            widthBlock = reader.nextInt();
+        }
+        System.out.println("You have chose a width of " + widthBlock + ".");
+        return widthBlock;
+    }
+
+    public int getBlockHeight() {
+        System.out.println("Height of a block: ");
+        int heightBlock = reader.nextInt();
+        checkValidSize(heightBlock);
+        while (!checkValidSize(heightBlock)) {
+            System.out.println("That is not a valid height for a block. Try again:");
+            heightBlock = reader.nextInt();
+        }
+        System.out.println("You have chose a height of " + heightBlock + ".");
+        return heightBlock;
+    }
+
+    private Boolean checkValidSize(int size) {
+        return (size > 0);
+    }
+
+    private void pickSymbols(List<String> listSymbols, int numberOfSymbols) {
+        System.out.println("You have chosen to pick your own symbols.");
+        for (int i = 0; i < numberOfSymbols; i++) {
+            System.out.println("Choose for the symbol number " + i + ": ");
+            String newSymbol = reader.next();
+            while (listSymbols.contains(newSymbol)) {
+                System.out.println("This symbol has already been given. Try again:");
+                newSymbol = reader.next();
+            }
+            listSymbols.add(newSymbol);
+        }
+        System.out.println("You chose the symbols: " + listSymbols.toString());
+    }
+
+    private List<Constraint> getListConstraints() {
+        List<Constraint> listConstraints = SudokuFactory.DEFAULT_CONSTRAINTS;
+        System.out.println("The sudoku have constraints of blocks, lines and columns. Would you like to add the diagonal constraints ? (y/n, default 'no')");
+        if(reader.next().equalsIgnoreCase("y")){
+            listConstraints.add(Constraint.Diagonal);
+        }
+        return listConstraints;
+    }
+
+    private void generatePartialDoku(MultiDoku doku, String difficultyName) {
+        Difficulty difficulty;
+        switch (difficultyName){
+            case "very easy": difficulty = Difficulty.VeryEasy;
+            case "easy": difficulty = Difficulty.Easy;
+            case "hard": difficulty = Difficulty.Hard;
+            default: difficulty = Difficulty.Medium;
+        }
+        try {
+            SudokuFactory.fillDoku(doku, difficulty);
+        } catch (Exception e) {
+            System.out.println("There seems to be a problem with those settings. Let's start again.");
+        }
+    }
+
+    private void generateFullDoku(MultiDoku doku) {
+        Solver.solveRandom(doku, new Random());
+    }
+
+}