[Sync Iteration] go/blackjack/1

solutions/go/blackjack/1/blackjack.go

@@ -0,0 +1,63 @@
+package blackjack
+
+// ParseCard returns the integer value of a card following blackjack ruleset.
+func ParseCard(card string) int {
+	switch {
+        case card == "ace": 
+        	return 11; 
+        case card == "ten" || card == "jack" || card == "queen" || card == "king" :
+        	return 10; 
+        case card == "two": 
+        	return 2; 
+        case card == "three": 
+        	return 3; 
+        case card == "four": 
+        	return 4; 
+        case card == "five": 
+        	return 5; 
+        case card == "six": 
+        	return 6; 
+        case card == "seven": 
+        	return 7;
+        case card == "eight": 
+        	return 8;
+        case card == "nine":
+        	return 9;
+        default: 
+    		return 0; 
+    }
+}
+
+// FirstTurn returns the decision for the first turn, given two cards of the
+// player and one card of the dealer.
+func FirstTurn(card1, card2, dealerCard string) string {
+    playerCard := ParseCard(card1) + ParseCard(card2) 
+
+    if card1 == "ace" && card2 == "ace" {
+        return "P"
+    }
+
+    if playerCard == 21 {
+        if dealerCard == "king" || dealerCard == "queen" || dealerCard == "jack" || dealerCard == "ten" || dealerCard == "ace"{
+            return  "S"
+        }
+    	return "W"
+    }
+
+    if playerCard >= 17 && playerCard <= 20 {
+        return "S"
+    } 
+
+    if playerCard >= 12 && playerCard <= 16 {
+        if ParseCard(dealerCard) >= 7 {
+            return "H"
+        }
+        return "S"
+    }
+
+    if playerCard <= 11 {
+         return "H"
+    }
+
+    return "S"
+}