Fixes to use v5 challenge API instead of v2

https://topcoder.atlassian.net/browse/PS-187

Author: jmgasper

docs/actions.challenge.md

@@ -16,7 +16,7 @@ Actions related to Topcoder challenges APIs.
     * [.unregisterInit()](#module_actions.challenge.unregisterInit) ⇒ <code>Action</code>
     * [.unregisterDone(auth, challengeId)](#module_actions.challenge.unregisterDone) ⇒ <code>Action</code>
     * [.loadResultsInit(challengeId)](#module_actions.challenge.loadResultsInit) ⇒ <code>Action</code>
-    * [.loadResultsDone(auth, challengeId, type)](#module_actions.challenge.loadResultsDone) ⇒ <code>Action</code>
+    * [.loadResultsDone(challengeId, tokenV3)](#module_actions.challenge.loadResultsDone) ⇒ <code>Action</code>
     * [.fetchCheckpointsInit()](#module_actions.challenge.fetchCheckpointsInit) ⇒ <code>Action</code>
     * [.fetchCheckpointsDone(tokenV2, challengeId)](#module_actions.challenge.fetchCheckpointsDone)
     * [.toggleCheckpointFeedback(id, open)](#module_actions.challenge.toggleCheckpointFeedback) ⇒ <code>Action</code>
@@ -144,18 +144,15 @@ Creates an action that signals beginning of challenge results loading.
 
 <a name="module_actions.challenge.loadResultsDone"></a>
 
-### actions.challenge.loadResultsDone(auth, challengeId, type) ⇒ <code>Action</code>
+### actions.challenge.loadResultsDone(challengeId, tokenV3) ⇒ <code>Action</code>
 Creates an action that loads challenge results.
 
-**Kind**: static method of [<code>actions.challenge</code>](#module_actions.challenge)  
+**Kind**: static method of [<code>actions.challenge</code>](#module_actions.challenge)
 
 | Param | Type | Description |
 | --- | --- | --- |
-| auth | <code>Object</code> | Object that holds Topcoder auth tokens. |
-| [auth.tokenV2] | <code>String</code> | v2 token. |
-| [auth.tokenV3] | <code>String</code> | v3 token. |
 | challengeId | <code>Number</code> \| <code>String</code> | Challenge ID. Should match the one passed  in the previous [loadResultsInit](#module_actions.challenge.loadResultsInit) call. |
-| type | <code>String</code> | Challenge type. |
+| tokenV3 | <code>String</code> | Topcoder v3 auth token. |
 
 <a name="module_actions.challenge.fetchCheckpointsInit"></a>
 

src/actions/challenge.js

@@ -239,22 +239,16 @@ function loadResultsInit(challengeId) {
 /**
  * @static
  * @desc Creates an action that loads challenge results.
- * @param {Object} auth Object that holds Topcoder auth tokens.
- * @param {String} [auth.tokenV2] v2 token.
- * @param {String} [auth.tokenV3] v3 token.
- * @param {Number|String} challengeId Challenge ID. Should match the one passed
- *  in the previous {@link module:actions.challenge.loadResultsInit} call.
- * @param {String} type Challenge type.
+ * @param {String} challengeId The challenge id
+ * @param {String} tokenV3 Topcoder auth token v3.
  * @return {Action}
  */
-function loadResultsDone(auth, challengeId, type) {
-  return getApi('V2')
-    .fetch(`/${type}/challenges/result/${challengeId}`)
-    .then(response => response.json())
-    .then(response => ({
-      challengeId: _.toString(challengeId),
-      results: response.results,
-    }));
+function loadResultsDone(challengeId, tokenV3) {
+  const service = getChallengesService(tokenV3);
+  return service.getChallengeDetails(challengeId).then(response => ({
+    challengeId,
+    results: response.winners,
+  }));
 }
 
 /**

src/reducers/challenge.js

@@ -520,7 +520,7 @@ export function factory(options = {}) {
       }
       const resultsPromise = challengeDetails.status === 'Completed' ? (
         redux.resolveAction(
-          actions.challenge.loadResultsDone(tokens, challengeId, track.toLowerCase()),
+          actions.challenge.loadResultsDone(challengeId, tokens.tokenV3),
         )
       ) : null;
       return Promise.all([res, checkpointsPromise, resultsPromise]);