10 files changed, 199 insertions, 0 deletions
diff --git a/src/client/Utils/Cmd.elm b/src/client/Utils/Cmd.elm
new file mode 100644
index 0000000..5f41cbe
--- /dev/null
+++ b/src/client/Utils/Cmd.elm
@@ -0,0 +1,16 @@
+module Utils.Cmd exposing
+  ( pipeUpdate
+  , (:>)
+  )
+
+import Platform.Cmd as Cmd
+
+pipeUpdate : (model, Cmd msg) -> (model -> (model, Cmd msg)) -> (model, Cmd msg)
+pipeUpdate (model, cmd) f =
+  let (newModel, newCmd) = f model
+  in  (newModel, Cmd.batch [ cmd, newCmd ])
+
+(:>) : (m, Cmd a) -> (m -> (m, Cmd a)) -> (m, Cmd a)
+(:>) = pipeUpdate
+
+infixl 0 :>
diff --git a/src/client/Utils/Dict.elm b/src/client/Utils/Dict.elm
new file mode 100644
index 0000000..7d708e2
--- /dev/null
+++ b/src/client/Utils/Dict.elm
@@ -0,0 +1,11 @@
+module Utils.Dict exposing
+  ( mapValues
+  )
+
+import Dict as Dict exposing (..)
+
+mapValues : (a -> b) -> Dict comparable a -> Dict comparable b
+mapValues f = Dict.fromList << List.map (onSecond f) << Dict.toList
+
+onSecond : (a -> b) -> (comparable, a) -> (comparable, b)
+onSecond f tuple = case tuple of (x, y) -> (x, f y)
diff --git a/src/client/Utils/Either.elm b/src/client/Utils/Either.elm
new file mode 100644
index 0000000..275fc8c
--- /dev/null
+++ b/src/client/Utils/Either.elm
@@ -0,0 +1,9 @@
+module Utils.Either exposing
+  ( toMaybeError
+  )
+
+toMaybeError : Result a b -> Maybe a
+toMaybeError result =
+  case result of
+    Ok _ -> Nothing
+    Err x -> Just x
diff --git a/src/client/Utils/Form.elm b/src/client/Utils/Form.elm
new file mode 100644
index 0000000..8d75a32
--- /dev/null
+++ b/src/client/Utils/Form.elm
@@ -0,0 +1,13 @@
+module Utils.Form exposing
+  ( fieldAsText
+  )
+
+import Form exposing (Form)
+
+import Model.Payment exposing (Frequency(..))
+
+fieldAsText : Form a b -> String -> String
+fieldAsText form field =
+  Form.getFieldAsString field form
+    |> .value
+    |> Maybe.withDefault ""
diff --git a/src/client/Utils/Http.elm b/src/client/Utils/Http.elm
new file mode 100644
index 0000000..dd3870a
--- /dev/null
+++ b/src/client/Utils/Http.elm
@@ -0,0 +1,39 @@
+module Utils.Http exposing
+  ( jsonRequest
+  , request
+  , errorKey
+  )
+
+import Http exposing (..)
+import Task exposing (..)
+import Json.Decode as Decode exposing (Decoder, Value)
+import Json.Encode as Encode
+
+jsonRequest : String -> String -> Expect a -> (Result Error a -> msg) -> Encode.Value -> Cmd msg
+jsonRequest method url expect handleResult value =
+  requestWithBody method url (jsonBody value) expect handleResult
+
+request : String -> String -> Expect a -> (Result Error a -> msg) -> Cmd msg
+request method url = requestWithBody method url emptyBody
+
+requestWithBody : String -> String -> Body -> Expect a -> (Result Error a -> msg) -> Cmd msg
+requestWithBody method url body expect handleResult =
+  let req = Http.request
+              { method = method
+              , headers = []
+              , url = url
+              , body = body
+              , expect = expect
+              , timeout = Nothing
+              , withCredentials = False
+              }
+  in  send handleResult req
+
+errorKey : Error -> String
+errorKey error =
+  case error of
+    BadUrl _ -> "BadUrl"
+    Timeout -> "Timeout"
+    NetworkError -> "NetworkError"
+    BadPayload _ _ -> "BadPayload"
+    BadStatus response -> response.body
diff --git a/src/client/Utils/Json.elm b/src/client/Utils/Json.elm
new file mode 100644
index 0000000..29e815b
--- /dev/null
+++ b/src/client/Utils/Json.elm
@@ -0,0 +1,12 @@
+module Utils.Json exposing
+  ( dictDecoder
+  )
+
+import Json.Decode as Decode exposing (Decoder)
+import Dict exposing (Dict)
+
+dictDecoder : Decoder comparable -> Decoder a -> Decoder (Dict comparable a)
+dictDecoder keyDecoder valueDecoder =
+  Decode.map2 (,) keyDecoder valueDecoder
+    |> Decode.list
+    |> Decode.map Dict.fromList
diff --git a/src/client/Utils/List.elm b/src/client/Utils/List.elm
new file mode 100644
index 0000000..cc57d9f
--- /dev/null
+++ b/src/client/Utils/List.elm
@@ -0,0 +1,17 @@
+module Utils.List exposing
+  ( groupBy
+  , mean
+  )
+
+import Dict
+
+groupBy : (a -> comparable) -> List a -> List (comparable, List a)
+groupBy f xs =
+  let addItem item dict =
+        let groupItems = Dict.get (f item) dict |> Maybe.withDefault []
+        in  Dict.insert (f item) (item :: groupItems) dict
+  in  List.foldr addItem Dict.empty xs
+        |> Dict.toList
+
+mean : List Int -> Int
+mean xs = (List.sum xs) // (List.length xs)
diff --git a/src/client/Utils/Maybe.elm b/src/client/Utils/Maybe.elm
new file mode 100644
index 0000000..46456e1
--- /dev/null
+++ b/src/client/Utils/Maybe.elm
@@ -0,0 +1,34 @@
+module Utils.Maybe exposing
+  ( isJust
+  , cat
+  , toList
+  , orElse
+  )
+
+isJust : Maybe a -> Bool
+isJust maybe =
+  case maybe of
+    Just _  -> True
+    Nothing -> False
+
+cat : List (Maybe a) -> List a
+cat =
+  List.foldr
+    (\mb xs ->
+      case mb of
+        Just x  -> x :: xs
+        Nothing -> xs
+    )
+    []
+
+toList : Maybe a -> List a
+toList mb =
+  case mb of
+    Just a  -> [a]
+    Nothing -> []
+
+orElse : Maybe a -> Maybe a -> Maybe a
+orElse mb1 mb2 =
+  case mb1 of
+    Just x -> Just x
+    Nothing -> mb2
diff --git a/src/client/Utils/Search.elm b/src/client/Utils/Search.elm
new file mode 100644
index 0000000..1b70387
--- /dev/null
+++ b/src/client/Utils/Search.elm
@@ -0,0 +1,10 @@
+module Utils.Search exposing
+  ( format
+  )
+
+import String
+
+import Utils.String as String
+
+format : String -> String
+format = String.unaccent << String.toLower
diff --git a/src/client/Utils/String.elm b/src/client/Utils/String.elm
new file mode 100644
index 0000000..90fe68e
--- /dev/null
+++ b/src/client/Utils/String.elm
@@ -0,0 +1,38 @@
+module Utils.String exposing
+  ( unaccent
+  )
+
+unaccent : String -> String
+unaccent = String.map unaccentChar
+
+unaccentChar : Char -> Char
+unaccentChar c = case c of
+  'à' -> 'a'
+  'á' -> 'a'
+  'â' -> 'a'
+  'ã' -> 'a'
+  'ä' -> 'a'
+  'ç' -> 'c'
+  'è' -> 'e'
+  'é' -> 'e'
+  'ê' -> 'e'
+  'ë' -> 'e'
+  'ì' -> 'i'
+  'í' -> 'i'
+  'î' -> 'i'
+  'ï' -> 'i'
+  'ñ' -> 'n'
+  'ò' -> 'o'
+  'ó' -> 'o'
+  'ô' -> 'o'
+  'õ' -> 'o'
+  'ö' -> 'o'
+  'š' -> 's'
+  'ù' -> 'u'
+  'ú' -> 'u'
+  'û' -> 'u'
+  'ü' -> 'u'
+  'ý' -> 'y'
+  'ÿ' -> 'y'
+  'ž' -> 'z'
+  _ -> c