Add percentages to the keys page

Signed-off-by: Graham <gpe@openrs2.org>

archive/src/main/kotlin/org/openrs2/archive/key/KeyExporter.kt

@@ -14,7 +14,18 @@ public class KeyExporter @Inject constructor(
         val validKeys: Long,
         val encryptedGroups: Long,
         val validGroups: Long
-    )
+    ) {
+        val validKeysFraction: Double = if (allKeys == 0L) {
+            1.0
+        } else {
+            validKeys.toDouble() / allKeys
+        }
+        val validGroupsFraction: Double = if (encryptedGroups == 0L) {
+            1.0
+        } else {
+            validGroups.toDouble() / encryptedGroups
+        }
+    }
 
     public suspend fun count(): Stats {
         return database.execute { connection ->

archive/src/main/resources/org/openrs2/archive/templates/keys/index.html

@@ -16,14 +16,16 @@
 				There are
 				<strong th:text="${#numbers.formatInteger(stats.allKeys, 1, 'COMMA')}">0</strong>
 				candidate keys in the database, of which
-				<strong th:text="${#numbers.formatInteger(stats.validKeys, 1, 'COMMA')}">0</strong>
+				<strong
+					th:text="${#numbers.formatInteger(stats.validKeys, 1, 'COMMA')} + ' (' + ${#numbers.formatPercent(stats.validKeysFraction, 1, 2)} + ')'">0</strong>
 				have been validated against at least one encrypted group.
 			</p>
 			<p>
 				There are
 				<strong th:text="${#numbers.formatInteger(stats.encryptedGroups, 1, 'COMMA')}">0</strong>
 				encrypted groups in the database, of which
-				<strong th:text="${#numbers.formatInteger(stats.validGroups, 1, 'COMMA')}">0</strong>
+				<strong
+					th:text="${#numbers.formatInteger(stats.validGroups, 1, 'COMMA')} + ' (' + ${#numbers.formatPercent(stats.validGroupsFraction, 1, 2)} + ')'">0</strong>
 				have a validated key. This is equal to the total number of
 				validated keys if and only if keys are not re-used.
 			</p>