From c95e19407d492a0d4e9e14e320520fe29ce379e5 Mon Sep 17 00:00:00 2001
From: Joris
Date: Thu, 31 Mar 2016 00:06:50 +0200
Subject: Add init data in html page

---
 src/client/elm/Main.elm             | 22 ++++++++--------------
 src/client/elm/Model.elm            | 16 +++++++++++-----
 src/client/elm/Model/Init.elm       | 17 ++++++++++++++---
 src/client/elm/Model/InitResult.elm | 28 ++++++++++++++++++++++++++++
 src/client/elm/Model/View.elm       |  3 +--
 src/client/elm/Server.elm           | 10 +---------
 src/client/elm/View.elm             |  3 ---
 src/client/elm/View/Loading.elm     | 12 ------------
 8 files changed, 63 insertions(+), 48 deletions(-)
 create mode 100644 src/client/elm/Model/InitResult.elm
 delete mode 100644 src/client/elm/View/Loading.elm

(limited to 'src/client/elm')

diff --git a/src/client/elm/Main.elm b/src/client/elm/Main.elm
index 561ea91..0813573 100644
--- a/src/client/elm/Main.elm
+++ b/src/client/elm/Main.elm
@@ -17,6 +17,7 @@ import Server
 import Mailbox
 import Action exposing (..)
 import Model exposing (Model, initialModel)
+import Model.InitResult as InitResult exposing (initResultDecoder)
 import Update exposing (update, routerConfig)
 import View exposing (view)
 
@@ -28,7 +29,7 @@ main = app.html
 
 app : App Model
 app = StartApp.start
-  { init = initData `Effects.andThen` initRouter
+  { init = (initData, Effects.none) `Effects.andThen` initRouter
   , view = view
   , update = update
   , inputs =
@@ -40,20 +41,13 @@ app = StartApp.start
 
 -- Init
 
-initData : (Model, Effects Action)
+initData : Model
 initData =
-  case Json.decodeString Json.string signInError of
-    Ok signInError ->
-      ( initialModel initialTime translations conf (Just signInError)
-      , Effects.none
-      )
+  case Json.decodeString initResultDecoder initResult of
+    Ok init ->
+      initialModel initialTime translations conf init
     Err _ ->
-      ( initialModel initialTime translations conf Nothing
-      , Server.init
-          |> Task.map GoLoggedInView
-          |> flip Task.onError (always <| Task.succeed GoSignInView)
-          |> Effects.task
-      )
+      initialModel initialTime translations conf InitResult.InitEmpty
 
 initRouter : Model -> (Model, Effects Action)
 initRouter model = TransitRouter.init routerConfig location model
@@ -68,5 +62,5 @@ port tasks = app.tasks
 port initialTime : Time
 port translations : String
 port conf : String
-port signInError : String
+port initResult : String
 port location : String
diff --git a/src/client/elm/Model.elm b/src/client/elm/Model.elm
index 9e3f4a0..b4213d5 100644
--- a/src/client/elm/Model.elm
+++ b/src/client/elm/Model.elm
@@ -12,6 +12,8 @@ import Route exposing (Route)
 import Model.View exposing (..)
 import Model.Translations exposing (..)
 import Model.Conf exposing (..)
+import Model.InitResult exposing (..)
+import LoggedIn.Model as LoggedInModel
 
 import SignIn.Model as SignInModel
 
@@ -25,12 +27,16 @@ type alias Model =
   , transitRouter : TransitRouter.TransitRouter Route
   }
 
-initialModel : Time -> String -> String -> Maybe String -> Model
-initialModel initialTime translations conf mbSignInError =
+initialModel : Time -> String -> String -> InitResult -> Model
+initialModel initialTime translations conf initResult =
   { view =
-      if isJust mbSignInError
-        then SignInView (SignInModel.init mbSignInError)
-        else LoadingView
+      case initResult of
+        InitEmpty ->
+          SignInView (SignInModel.init Nothing)
+        InitSuccess init ->
+          LoggedInView (LoggedInModel.init init)
+        InitError error ->
+          SignInView (SignInModel.init (Just error))
   , currentTime = initialTime
   , translations =
       case Json.decodeString translationsDecoder translations of
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
diff --git a/src/client/elm/Server.elm b/src/client/elm/Server.elm
index ad6d212..be052bb 100644
--- a/src/client/elm/Server.elm
+++ b/src/client/elm/Server.elm
@@ -1,6 +1,5 @@
 module Server
-  ( init
-  , signIn
+  ( signIn
   , addPayment
   , deletePayment
   , setIncome
@@ -20,13 +19,6 @@ import Model.Income exposing (incomesDecoder, incomeIdDecoder, IncomeId)
 import Model.User exposing (Users, usersDecoder, UserId, userIdDecoder)
 import Model.Init exposing (Init)
 
-init : Task Http.Error Init
-init =
-  Task.map Init (Http.get usersDecoder "/api/users")
-    `Task.andMap` (Http.get ("id" := userIdDecoder) "/api/whoAmI")
-    `Task.andMap` (Http.get paymentsDecoder "/api/payments")
-    `Task.andMap` (Http.get incomesDecoder "/api/incomes")
-
 signIn : String -> Task Http.Error ()
 signIn email =
   post ("/api/signIn?email=" ++ email)
diff --git a/src/client/elm/View.elm b/src/client/elm/View.elm
index 6165766..90808aa 100644
--- a/src/client/elm/View.elm
+++ b/src/client/elm/View.elm
@@ -11,7 +11,6 @@ import Model.View exposing (..)
 import LoggedData
 
 import View.Header exposing (renderHeader)
-import View.Loading exposing (renderLoading)
 
 import SignIn.View as SignInView
 import LoggedIn.View as LoggedInView
@@ -27,8 +26,6 @@ view address model =
 renderMain : Address Action -> Model -> Html
 renderMain address model =
   case model.view of
-    LoadingView ->
-      renderLoading address
     SignInView signIn ->
       SignInView.view address model signIn
     LoggedInView loggedIn ->
diff --git a/src/client/elm/View/Loading.elm b/src/client/elm/View/Loading.elm
deleted file mode 100644
index 5270099..0000000
--- a/src/client/elm/View/Loading.elm
+++ /dev/null
@@ -1,12 +0,0 @@
-module View.Loading
-  ( renderLoading
-  ) where
-
-import Signal exposing (Address)
-
-import Html exposing (..)
-
-import Action exposing (Action)
-
-renderLoading : Address Action -> Html
-renderLoading address = text ""
-- 
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