Add valid checks to used variables

Creates new helper function - isAllValid()

components/extras/ExtrasRowList.bs

@@ -1,3 +1,5 @@
+import "pkg:/source/utils/misc.bs"
+
 sub init()
     m.top.visible = true
     updateSize()
@@ -184,8 +186,13 @@ function buildRow(rowTitle as string, items, imgWdth = 0)
     row.Title = tr(rowTitle)
     for each mov in items
         if LCase(mov.json.type) = "episode"
-            mov.labelText = mov.json.SeriesName
+            if isAllValid([mov.json.SeriesName, mov.json.ParentIndexNumber, mov.json.IndexNumber, mov.json.Name])
-            mov.subTitle = `S${mov.json.ParentIndexNumber}:E${mov.json.IndexNumber} - ${mov.json.Name}`
+                mov.labelText = mov.json.SeriesName
+                mov.subTitle = `S${mov.json.ParentIndexNumber}:E${mov.json.IndexNumber} - ${mov.json.Name}`
+            else
+                mov.labelText = mov.json.Name
+                mov.subTitle = mov.json.ProductionYear
+            end if
         else
             mov.labelText = mov.json.Name
             mov.subTitle = mov.json.ProductionYear

source/utils/misc.bs

@@ -299,6 +299,14 @@ function isValid(input as dynamic) as boolean
     return input <> invalid
 end function
 
+' Returns whether or not all items in passed array are valid
+function isAllValid(input as object) as boolean
+    for each item in input
+        if not isValid(item) then return false
+    end for
+    return true
+end function
+
 ' Returns whether or not passed value is valid and not empty
 ' Accepts a string, or any countable type (arrays and lists)
 function isValidAndNotEmpty(input as dynamic) as boolean