Added further information to be shown in AllergenSheet.kt

app/src/main/java/com/denizk0461/studip/model/DietaryPreferences.kt

@@ -1,5 +1,7 @@
 package com.denizk0461.studip.model
 
+import com.denizk0461.studip.R
+
 /**
  * Enumeration that can be used in conjunction with DietaryPrefObject.kt to more concisely look up,
  * specify, and iterate through dietary preferences. Order of these elements matches the order used
@@ -19,4 +21,45 @@ enum class DietaryPreferences(val value: String) {
     VEGAN("isVegan"),
     VEGETARIAN("isVegetarian"),
     GAME("isGame"),
+    ;
+
+    companion object {
+        /**
+         * Provides a converting function between the index of a dietary preference and its according
+         * icon.
+         * TODO this seems inefficient
+         */
+        val indexToDrawable: Map<Int, Int> = mapOf(
+            0 to R.drawable.handshake,
+            1 to R.drawable.fish,
+            2 to R.drawable.chicken,
+            3 to R.drawable.sheep,
+            4 to R.drawable.yoga,
+            5 to R.drawable.cow,
+            6 to R.drawable.pig,
+            7 to R.drawable.leaf,
+            8 to R.drawable.carrot,
+            9 to R.drawable.deer,
+            10 to R.drawable.circle,
+        )
+
+        /**
+         * Provides a converting function between the index of a dietary preference and its
+         * according localised text string.
+         * TODO this seems inefficient
+         */
+        val indexToString: Map<Int, Int> = mapOf(
+            0 to R.string.pref_fair,
+            1 to R.string.pref_fish,
+            2 to R.string.pref_poultry,
+            3 to R.string.pref_lamb,
+            4 to R.string.pref_vital,
+            5 to R.string.pref_beef,
+            6 to R.string.pref_pork,
+            7 to R.string.pref_vegan,
+            8 to R.string.pref_vegetarian,
+            9 to R.string.pref_game,
+            10 to 0, // shouldn't occur
+        )
+    }
 }