Reorganize stages into parts

part7/ElmHub.elm

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+module ElmHub (..) where
+
+import Html exposing (..)
+import Html.Attributes exposing (..)
+import Html.Events exposing (..)
+import Http
+import Task exposing (Task)
+import Effects exposing (Effects)
+import Json.Decode exposing (Decoder, (:=))
+import Json.Encode
+import Signal exposing (Address)
+
+
+searchFeed : Address String -> String -> Task x Action
+searchFeed address query =
+  let
+    -- See https://developer.github.com/v3/search/#example for how to customize!
+    url =
+      "https://api.github.com/search/repositories?q="
+        ++ query
+        ++ "+language:elm&sort=stars&order=desc"
+
+    -- These only talk to JavaScript ports now. They don't
+    -- actually do any actions themselves.
+    task =
+      Signal.send address query
+        |> Task.map (\_ -> DoNothing)
+  in
+    Task.onError task (\_ -> Task.succeed DoNothing)
+
+
+responseDecoder : Decoder (List SearchResult)
+responseDecoder =
+  "items" := Json.Decode.list searchResultDecoder
+
+
+searchResultDecoder : Decoder SearchResult
+searchResultDecoder =
+  Json.Decode.object3
+    SearchResult
+    ("id" := Json.Decode.int)
+    ("full_name" := Json.Decode.string)
+    ("stargazers_count" := Json.Decode.int)
+
+
+type alias Model =
+  { query : String
+  , results : List SearchResult
+  }
+
+
+type alias SearchResult =
+  { id : ResultId
+  , name : String
+  , stars : Int
+  }
+
+
+type alias ResultId =
+  Int
+
+
+initialModel : Model
+initialModel =
+  { query = "tutorial"
+  , results = []
+  }
+
+
+view : Address Action -> Model -> Html
+view address model =
+  div
+    [ class "content" ]
+    [ header
+        []
+        [ h1 [] [ text "ElmHub" ]
+        , span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
+        ]
+    , input [ class "search-query", onInput address SetQuery, defaultValue model.query ] []
+    , button [ class "search-button", onClick address Search ] [ text "Search" ]
+    , ul
+        [ class "results" ]
+        (List.map (viewSearchResult address) model.results)
+    ]
+
+
+onInput address wrap =
+  on "input" targetValue (\val -> Signal.message address (wrap val))
+
+
+defaultValue str =
+  property "defaultValue" (Json.Encode.string str)
+
+
+viewSearchResult : Address Action -> SearchResult -> Html
+viewSearchResult address result =
+  li
+    []
+    [ span [ class "star-count" ] [ text (toString result.stars) ]
+    , a
+        [ href ("https://github.com/" ++ result.name), target "_blank" ]
+        [ text result.name ]
+    , button
+        [ class "hide-result", onClick address (DeleteById result.id) ]
+        [ text "X" ]
+    ]
+
+
+type Action
+  = Search
+  | SetQuery String
+  | DeleteById ResultId
+  | SetResults (List SearchResult)
+  | DoNothing
+
+
+update : Address String -> Action -> Model -> ( Model, Effects Action )
+update searchAddress action model =
+  case action of
+    Search ->
+      ( model, Effects.task (searchFeed searchAddress model.query) )
+
+    SetQuery query ->
+      ( { model | query = query }, Effects.none )
+
+    SetResults results ->
+      let
+        newModel =
+          { model | results = results }
+      in
+        ( newModel, Effects.none )
+
+    DeleteById idToHide ->
+      let
+        newResults =
+          model.results
+            |> List.filter (\{ id } -> id /= idToHide)
+
+        newModel =
+          { model | results = newResults }
+      in
+        ( newModel, Effects.none )
+
+    DoNothing ->
+      ( model, Effects.none )

part7/Main.elm

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+module Main (..) where
+
+import StartApp
+import ElmHub exposing (..)
+import Effects exposing (Effects)
+import Task exposing (Task)
+import Html exposing (Html)
+import Signal
+import Json.Encode
+import Json.Decode
+
+
+main : Signal Html
+main =
+  app.html
+
+
+app : StartApp.App Model
+app =
+  StartApp.start
+    { view = view
+    , update = update search.address
+    , init = ( initialModel, Effects.task (searchFeed search.address initialModel.query) )
+    , inputs = [ responseActions ]
+    }
+
+
+port tasks : Signal (Task Effects.Never ())
+port tasks =
+  app.tasks
+
+
+search : Signal.Mailbox String
+search =
+  Signal.mailbox ""
+
+
+port githubSearch : Signal String
+port githubSearch =
+  search.signal
+
+
+responseActions : Signal Action
+responseActions =
+  Signal.map decodeGithubResponse githubResponse
+
+
+decodeGithubResponse : Json.Encode.Value -> Action
+decodeGithubResponse value =
+  case Json.Decode.decodeValue responseDecoder value of
+    Ok results ->
+      SetResults results
+
+    Err _ ->
+      DoNothing
+
+
+port githubResponse : Signal Json.Encode.Value

part7/README.md

@@ -0,0 +1,25 @@
+Stage 7
+=======
+
+## Installation
+
+```bash
+elm package install
+```
+
+(Answer `y` at the prompt. In rare cases a known issue can cause the download
+to fail; in that case, just run `elm package install` again.)
+
+## Building
+
+```bash
+elm live Main.elm --open -- --output=elm.js
+```
+
+## Running Tests
+
+```bash
+cd test
+elm package install
+elm test TestRunner.elm
+```

part7/elm-package.json

@@ -0,0 +1,18 @@
+{
+    "version": "1.0.0",
+    "summary": "Like GitHub, but for Elm stuff.",
+    "repository": "https://github.com/rtfeldman/elm-workshop.git",
+    "license": "BSD-3-Clause",
+    "source-directories": [
+        "."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "elm-lang/core": "3.0.0 <= v < 4.0.0",
+        "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
+        "evancz/elm-html": "4.0.0 <= v < 5.0.0",
+        "evancz/elm-http": "3.0.0 <= v < 4.0.0",
+        "evancz/start-app": "2.0.0 <= v < 3.0.0"
+    },
+    "elm-version": "0.16.0 <= v < 0.17.0"
+}

part7/index.html

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+<!DOCTYPE HTML>
+<html>
+
+<head>
+  <meta charset="UTF-8">
+  <title>ElmHub</title>
+  <script type="text/javascript" src="github.js"></script>
+  <script type="text/javascript" src="elm.js"></script>
+  <link rel="stylesheet" href="style.css">
+  <link rel="icon" type="image/png" href="elm-hub.png">
+</head>
+
+<body>
+  <div id="elm-landing-pad"></div>
+</body>
+
+<script type="text/javascript">
+  // documentation: https://github.com/michael/github
+  var github = new Github();
+
+  var app = Elm.embed(
+    Elm.Main,
+    document.getElementById("elm-landing-pad"),
+    {githubResponse: []});
+
+  function searchGithub(query) {
+    console.log("Searching for", query);
+    var search = github.getSearch(query);
+
+    search.repositories({}, function (err, repositories) {
+      console.log("Got response", repositories);
+
+      // TODO: app.ports.portNameGoesHere.send(repositories);
+    });
+  }
+
+  // TODO app.ports.portNameGoesHere.subscribe(searchGithub);
+</script>
+
+</html>

part7/style.css

@@ -0,0 +1,92 @@
+
+.content {
+  width: 960px;
+  margin: 0 auto;
+  padding: 30px;
+  font-family: Helvetica, Arial, serif;
+}
+
+header {
+  position: relative;
+  padding: 6px 12px;
+  height: 36px;
+  background-color: rgb(96, 181, 204);
+}
+
+h1 {
+  color: white;
+  font-weight: normal;
+  margin: 0;
+}
+
+.tagline {
+  color: #eee;
+  position: absolute;
+  right: 16px;
+  top: 12px;
+  font-size: 24px;
+  font-style: italic;
+}
+
+.results {
+  list-style-image: url('http://img-cache.cdn.gaiaonline.com/76bd5c99d8f2236e9d3672510e933fdf/http://i278.photobucket.com/albums/kk81/d3m3nt3dpr3p/Tiny-Star-Icon.png');
+  list-style-position: inside;
+  padding: 0;
+}
+
+.results li {
+  font-size: 18px;
+  margin-bottom: 16px;
+}
+
+.star-count {
+  font-weight: bold;
+  margin-right: 16px;
+}
+
+a {
+  color: rgb(96, 181, 204);
+  text-decoration: none;
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+.search-query {
+  padding: 8px;
+  font-size: 24px;
+  margin-bottom: 18px;
+  margin-top: 36px;
+}
+
+.search-button {
+  padding: 8px 16px;
+  font-size: 24px;
+  color: white;
+  border: 1px solid #ccc;
+  background-color: rgb(96, 181, 204);
+  margin-left: 12px
+}
+
+.search-button:hover {
+  color: rgb(96, 181, 204);
+  background-color: white;
+}
+
+.hide-result {
+  background-color: transparent;
+  border: 0;
+  font-weight: bold;
+  font-size: 18px;
+  margin-left: 18px;
+  cursor: pointer;
+}
+
+.hide-result:hover {
+  color: rgb(96, 181, 204);
+}
+
+button:focus, input:focus {
+  outline: none;
+}

part7/test/TestRunner.elm

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+module Main where
+
+import Signal exposing (Signal)
+
+import ElmTest exposing (consoleRunner)
+import Console exposing (IO, run)
+import Task
+
+import Tests
+
+console : IO ()
+console = consoleRunner Tests.all
+
+port runner : Signal (Task.Task x ())
+port runner = run console

part7/test/Tests.elm

@@ -0,0 +1,35 @@
+module Tests (..) where
+
+import ElmTest exposing (..)
+import ElmHub exposing (responseDecoder)
+import Json.Decode exposing (decodeString)
+
+
+all : Test
+all =
+  suite
+    "Decoding responses from GitHub"
+    [ test "they can decode empty responses"
+        <| let
+            emptyResponse =
+              """{ "items": [] }"""
+           in
+            assertEqual
+              (decodeString responseDecoder emptyResponse)
+              (Ok [])
+    , test "they can decode responses with results in them"
+        <| let
+            response =
+              """{ "items": [
+                { "id": 5, "full_name": "foo", "stargazers_count": 42 },
+                { "id": 3, "full_name": "bar", "stargazers_count": 77 }
+              ] }"""
+           in
+            assertEqual
+              (decodeString responseDecoder response)
+              (Ok
+                [ { id = 5, name = "foo", stars = 42 }
+                , { id = 3, name = "bar", stars = 77 }
+                ]
+              )
+    ]

part7/test/elm-package.json

@@ -0,0 +1,21 @@
+{
+    "version": "1.0.0",
+    "summary": "Like GitHub, but for Elm stuff.",
+    "repository": "https://github.com/rtfeldman/elm-workshop.git",
+    "license": "BSD-3-Clause",
+    "source-directories": [
+        ".",
+        ".."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "deadfoxygrandpa/elm-test": "3.1.1 <= v < 4.0.0",
+        "elm-lang/core": "3.0.0 <= v < 4.0.0",
+        "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
+        "evancz/elm-html": "4.0.0 <= v < 5.0.0",
+        "evancz/elm-http": "3.0.0 <= v < 4.0.0",
+        "evancz/start-app": "2.0.0 <= v < 3.0.0",
+        "laszlopandy/elm-console": "1.0.3 <= v < 2.0.0"
+    },
+    "elm-version": "0.16.0 <= v < 0.17.0"
+}