1 files changed, 32 insertions, 0 deletions
diff --git a/src/client/elm/Page.elm b/src/client/elm/Page.elm
new file mode 100644
index 0000000..7cfbbc7
--- /dev/null
+++ b/src/client/elm/Page.elm
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+module Page exposing
+  ( Page(..)
+  , toHash
+  , fromHash
+  )
+
+import Navigation
+import UrlParser exposing (..)
+import String
+
+type Page =
+  Home
+  | Income
+  | Statistics
+
+toHash : Page -> String
+toHash page =
+  case page of
+    Home -> "#"
+    Income -> "#income"
+    Statistics -> "#statistics"
+
+fromHash : Navigation.Location -> Result String Page
+fromHash location = UrlParser.parse identity pageParser (String.dropLeft 1 location.hash)
+
+pageParser : Parser (Page -> a) a
+pageParser =
+  oneOf
+    [ format Home (s "")
+    , format Income (s "income")
+    , format Statistics (s "statistics")
+    ]