From 2613aeeae0f4de44842ff0e796603d0316a61a14 Mon Sep 17 00:00:00 2001
From: Joris Guyonvarch
Date: Wed, 18 Mar 2015 00:32:17 +0100
Subject: Can edit the time, unfortunately the enter key is overriden so the
 '+' key of the numpad is used instead

---
 src/Model/TimerEdition.elm | 56 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 55 insertions(+), 1 deletion(-)

(limited to 'src/Model/TimerEdition.elm')

diff --git a/src/Model/TimerEdition.elm b/src/Model/TimerEdition.elm
index c7b90c5..5feea33 100644
--- a/src/Model/TimerEdition.elm
+++ b/src/Model/TimerEdition.elm
@@ -1,16 +1,70 @@
 module Model.TimerEdition
   ( TimerEdition
+  , Numbers
   , newTimerEdition
+  , keyCodeToChar
+  , toTime
+  , toMinutesAndSeconds
   ) where
 
+import Time (Time)
+import List
+import Array
+import String
+import Keyboard (KeyCode)
+
 import Model.Id (..)
 
+import Utils.List (..)
+
 type alias TimerEdition =
   { id : Id
-  , numbers : List Int
+  , numbers : Numbers
   }
 
+type alias Numbers = List Char
+
 newTimerEdition id =
   { id = id
   , numbers = []
   }
+
+keyCodeToChar : KeyCode -> Maybe Char
+keyCodeToChar code =
+  let zero = 96
+      nine = zero + 9
+  in  if code >= zero && code <= nine
+        then ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
+               |> Array.fromList
+               |> Array.get (code - zero)
+        else Nothing
+
+toTime : Numbers -> Time
+toTime numbers =
+  numbers
+    |> toMinutesAndSeconds
+    |> \(a, b) -> (stringToInt a, stringToInt b)
+    |> \(minutes, seconds) -> (toFloat minutes) * 60 * 1000 + (toFloat seconds) * 1000
+
+toMinutesAndSeconds : Numbers -> (String, String)
+toMinutesAndSeconds numbers =
+  numbers
+    |> List.take 4
+    |> List.reverse
+    |> completeBegin '0' 4
+    |> splitAt 2
+    |> \(a, b) -> (String.fromList a, String.fromList b)
+
+completeBegin : a -> Int -> List a -> List a
+completeBegin x count xs =
+  let length = List.length xs
+  in  List.append (repeat (count - length) x) xs
+
+stringToInt : String -> Int
+stringToInt str =
+  str
+    |> String.toInt
+    |> \res ->
+         case res of
+           Ok n -> n
+           Err _ -> 0
-- 
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