Add init data in html page

3 files changed, 43 insertions, 5 deletions

diff --git a/src/client/elm/Model/Init.elm b/src/client/elm/Model/Init.elm
index 7fccf00..5db038d 100644
--- a/src/client/elm/Model/Init.elm
+++ b/src/client/elm/Model/Init.elm
@@ -1,10 +1,13 @@
 module Model.Init
   ( Init
+  , initDecoder
   ) where
 
-import Model.Payment exposing (Payments)
-import Model.Income exposing (Incomes)
-import Model.User exposing (Users, UserId)
+import Json.Decode as Json exposing ((:=))
+
+import Model.Payment exposing (Payments, paymentsDecoder)
+import Model.Income exposing (Incomes, incomesDecoder)
+import Model.User exposing (Users, UserId, usersDecoder, userIdDecoder)
 
 type alias Init =
   { users : Users
@@ -12,3 +15,11 @@ type alias Init =
   , payments : Payments
   , incomes : Incomes
   }
+
+initDecoder : Json.Decoder Init
+initDecoder =
+  Json.object4 Init
+    ("users" := usersDecoder)
+    ("me" := userIdDecoder)
+    ("payments" := paymentsDecoder)
+    ("incomes" := incomesDecoder)
diff --git a/src/client/elm/Model/InitResult.elm b/src/client/elm/Model/InitResult.elm
new file mode 100644
index 0000000..d1f1348
--- /dev/null
+++ b/src/client/elm/Model/InitResult.elm
@@ -0,0 +1,28 @@
+module Model.InitResult
+  ( InitResult(..)
+  , initResultDecoder
+  ) where
+
+import Json.Decode as Json exposing ((:=))
+
+import Model.Init exposing (Init, initDecoder)
+
+type InitResult =
+  InitEmpty
+  | InitSuccess Init
+  | InitError String
+
+initResultDecoder : Json.Decoder InitResult
+initResultDecoder = ("tag" := Json.string) `Json.andThen` initResultDecoderWithTag
+
+initResultDecoderWithTag : String -> Json.Decoder InitResult
+initResultDecoderWithTag tag =
+  case tag of
+    "InitEmpty" ->
+      Json.succeed InitEmpty
+    "InitSuccess" ->
+      Json.map InitSuccess ("contents" := initDecoder)
+    "InitError" ->
+      Json.map InitError ("contents" := Json.string)
+    _ ->
+      Json.fail <| "got " ++ tag ++ " for InitResult"
diff --git a/src/client/elm/Model/View.elm b/src/client/elm/Model/View.elm
index 9d64c73..475e826 100644
--- a/src/client/elm/Model/View.elm
+++ b/src/client/elm/Model/View.elm
@@ -8,6 +8,5 @@ import SignIn.Model as SignInModel
 import LoggedIn.Model as LoggedInModel
 
 type View =
-  LoadingView
-  | SignInView SignInModel.Model
+  SignInView SignInModel.Model
   | LoggedInView LoggedInModel.Model