Wilmer Winkler

src/main/java/com/booleanuk/Scrabble.java

@@ -1,12 +1,164 @@
 package com.booleanuk;
 
+import java.util.HashMap;
+import java.util.Stack;
+
 public class Scrabble {
-    public Scrabble(String word) {
 
+    Stack<Character> bracketStack = new Stack<>();
+    boolean inValid = false;
+
+    String word;
+    HashMap<Character, Integer> scoringList = new HashMap<>();
+
+
+    public Scrabble(String word) {
+        scoringList = InitializeMap();
+        this.word = word;
     }
 
     public int score() {
-        return -1;
+
+        int letterCount = 0;
+        int curlyBracketLetterCount = 0;
+        int bracketLetterCount = 0;
+        int pointsMultiplier = 1;
+        int pointCounter = 0;
+        char[] charArray = word.toCharArray();
+
+        for (char c : charArray){
+            if(scoringList.containsKey(c)){
+                pointCounter += scoringList.get(c) * pointsMultiplier;
+                letterCount++;
+            }
+            else if(c == '{' ){
+
+                curlyBracketLetterCount = letterCount;
+
+                bracketStack.push(c);
+
+                pointsMultiplier *= 2;
+
+            }
+            else if(c == '}' ){
+
+                if (bracketStack.empty()) inValid = true;
+
+                if (!bracketStack.empty()) {
+                    if('[' == bracketStack.peek()){
+                        inValid = true;
+                    }
+                    else bracketStack.pop();
+                }
+
+                curlyBracketLetterCount = letterCount - curlyBracketLetterCount;
+
+                if(curlyBracketLetterCount < letterCount && curlyBracketLetterCount > 1) inValid = true;
+
+
+                if(bracketStack.empty()) {
+                    pointsMultiplier = 1;
+                }
+                else pointsMultiplier = 3;
+            }
+            else if(c == '[' ){
+
+                bracketLetterCount = letterCount;
+
+                bracketStack.push(c);
+
+                pointsMultiplier *= 3;
+
+            }
+            else if(c == ']' ){
+
+                if(bracketStack.empty()) inValid = true;
+
+                bracketLetterCount = letterCount - bracketLetterCount;
+
+                if(bracketLetterCount < letterCount && bracketLetterCount > 1) inValid = true;
+
+                if (!bracketStack.empty()) {
+                    if('{' == bracketStack.peek()){
+                        inValid = true;
+                    }
+                    else bracketStack.pop();
+                }
+
+
+
+                if(bracketStack.empty()) {
+                    pointsMultiplier = 1;
+                }
+                else pointsMultiplier = 2;
+
+            }
+            else return 0;
+        }
+
+        if(!bracketStack.isEmpty() || inValid) return 0;
+        return pointCounter;
+    }
+
+    public HashMap<Character, Integer> InitializeMap(){
+        HashMap<Character, Integer> scoringList = new HashMap<>();
+
+        scoringList.put('A', 1);
+        scoringList.put('B', 3);
+        scoringList.put('C', 3);
+        scoringList.put('D', 2);
+        scoringList.put('E', 1);
+        scoringList.put('F', 4);
+        scoringList.put('G', 2);
+        scoringList.put('H', 4);
+        scoringList.put('I', 1);
+        scoringList.put('J', 8);
+        scoringList.put('K', 5);
+        scoringList.put('L', 1);
+        scoringList.put('M', 3);
+        scoringList.put('N', 1);
+        scoringList.put('O', 1);
+        scoringList.put('P', 3);
+        scoringList.put('Q', 10);
+        scoringList.put('R', 1);
+        scoringList.put('S', 1);
+        scoringList.put('T', 1);
+        scoringList.put('U', 1);
+        scoringList.put('V', 4);
+        scoringList.put('W', 4);
+        scoringList.put('X', 8);
+        scoringList.put('Y', 4);
+        scoringList.put('Z', 10);
+        scoringList.put('a', 1);
+        scoringList.put('b', 3);
+        scoringList.put('c', 3);
+        scoringList.put('d', 2);
+        scoringList.put('e', 1);
+        scoringList.put('f', 4);
+        scoringList.put('g', 2);
+        scoringList.put('h', 4);
+        scoringList.put('i', 1);
+        scoringList.put('j', 8);
+        scoringList.put('k', 5);
+        scoringList.put('l', 1);
+        scoringList.put('m', 3);
+        scoringList.put('n', 1);
+        scoringList.put('o', 1);
+        scoringList.put('p', 3);
+        scoringList.put('q', 10);
+        scoringList.put('r', 1);
+        scoringList.put('s', 1);
+        scoringList.put('t', 1);
+        scoringList.put('u', 1);
+        scoringList.put('v', 4);
+        scoringList.put('w', 4);
+        scoringList.put('x', 8);
+        scoringList.put('y', 4);
+        scoringList.put('z', 10);
+
+
+
+        return scoringList;
     }
 
 }