Committing everything since its long overdue.

1 files changed, 228 insertions, 0 deletions

diff --git a/src/com/p4square/grow/frontend/TrainingPageResource.java b/src/com/p4square/grow/frontend/TrainingPageResource.java
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+++ b/src/com/p4square/grow/frontend/TrainingPageResource.java
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+/*
+ * Copyright 2013 Jesse Morgan
+ */
+
+package com.p4square.grow.frontend;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+
+import freemarker.template.Template;
+
+import org.restlet.data.Form;
+import org.restlet.data.MediaType;
+import org.restlet.data.Status;
+import org.restlet.ext.freemarker.TemplateRepresentation;
+import org.restlet.representation.Representation;
+import org.restlet.resource.ServerResource;
+
+import org.apache.log4j.Logger;
+
+import net.jesterpm.fmfacade.json.JsonRequestClient;
+import net.jesterpm.fmfacade.json.JsonResponse;
+
+import net.jesterpm.fmfacade.FreeMarkerPageResource;
+
+import com.p4square.grow.config.Config;
+
+/**
+ * SurveyPageResource handles rendering the survey and processing user's answers.
+ *
+ * This resource expects the user to be authenticated and the ClientInfo User object
+ * to be populated. Each question is requested from the backend along with the
+ * user's previous answer. Each answer is sent to the backend and the user is redirected
+ * to the next question. After the last question the user is sent to his results.
+ *
+ * @author Jesse Morgan <jesse@jesterpm.net>
+ */
+public class TrainingPageResource extends FreeMarkerPageResource {
+    private static Logger cLog = Logger.getLogger(TrainingPageResource.class);
+
+    private Config mConfig;
+    private Template mTrainingTemplate;
+    private JsonRequestClient mJsonClient;
+
+    // Fields pertaining to this request.
+    private String mChapter;
+    private String mUserId;
+
+    @Override
+    public void doInit() {
+        super.doInit();
+
+        GrowFrontend growFrontend = (GrowFrontend) getApplication();
+        mConfig = growFrontend.getConfig();
+        mTrainingTemplate = growFrontend.getTemplate("templates/training.ftl");
+        if (mTrainingTemplate == null) {
+            cLog.fatal("Could not find training template.");
+            setStatus(Status.SERVER_ERROR_INTERNAL);
+        }
+
+        mJsonClient = new JsonRequestClient(getContext().getClientDispatcher());
+
+        mChapter = getAttribute("chapter");
+        mUserId = getRequest().getClientInfo().getUser().getIdentifier();
+    }
+
+    /**
+     * Return a page with a survey question.
+     */
+    @Override
+    protected Representation get() {
+        try {
+            // Get the current chapter.
+            if (mChapter == null) {
+                // TODO: Get user's current question
+                mChapter = "seeker";
+            }
+
+            // Get videos for the chapter.
+            List<Map<String, Object>> videos = null;
+            {
+                JsonResponse response = backendGet("/training/" + mChapter);
+                if (!response.getStatus().isSuccess()) {
+                    setStatus(Status.CLIENT_ERROR_NOT_FOUND);
+                    return null;
+                }
+                videos = (List<Map<String, Object>>) response.getMap().get("videos");
+            }
+
+            // Get list of completed videos
+            Map<String, Object> trainingRecord = null;
+            Map<String, Object> completedVideos = new HashMap<String, Object>();
+            {
+                JsonResponse response = backendGet("/accounts/" + mUserId + "/training");
+                if (response.getStatus().isSuccess()) {
+                    trainingRecord = response.getMap();
+                    completedVideos = (Map<String, Object>) trainingRecord.get("videos");
+                }
+            }
+
+            // Mark the completed videos as completed
+            int chapterProgress = 0;
+            for (Map<String, Object> video : videos) {
+                boolean completed = (null != completedVideos.get(video.get("id")));
+                video.put("completed", completed);
+
+                if (completed) {
+                    chapterProgress++;
+                }
+            }
+            chapterProgress = chapterProgress * 100 / videos.size();
+
+            Map root = getRootObject();
+            root.put("chapter", mChapter);
+            root.put("chapterProgress", chapterProgress);
+            root.put("videos", videos);
+            root.put("completedVideos", completedVideos);
+
+            return new TemplateRepresentation(mTrainingTemplate, root, MediaType.TEXT_HTML);
+
+        } catch (Exception e) {
+            cLog.fatal("Could not render page: " + e.getMessage(), e);
+            setStatus(Status.SERVER_ERROR_INTERNAL);
+            return null;
+        }
+    }
+
+    /**
+     * Record a survey answer and redirect to the next question.
+     */
+    @Override
+    protected Representation post(Representation entity) {
+        return null;
+        /*final Form form = new Form(entity);
+        final String answerId = form.getFirstValue("answer");
+
+        if (mQuestionId == null || answerId == null || answerId.length() == 0) {
+            // Something is wrong.
+            setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
+            return null;
+        }
+
+        try {
+            // Find the question
+            Map questionData = null;
+            {
+                JsonResponse response = backendGet("/assessment/question/" + mQuestionId);
+                if (!response.getStatus().isSuccess()) {
+                    // User is answering a question which doesn't exist
+                    setStatus(Status.CLIENT_ERROR_NOT_FOUND);
+                    return null;
+                }
+
+                questionData = response.getMap();
+            }
+
+            // Store answer
+            {
+                Map<String, String> answer = new HashMap<String, String>();
+                answer.put("answerId", answerId);
+                JsonResponse response = backendPut("/accounts/" + mUserId +
+                        "/assessment/answers/" + mQuestionId, answer);
+
+                if (!response.getStatus().isSuccess()) {
+                    // Something went wrong talking to the backend, error out.
+                    cLog.fatal("Error recording survey answer " + response.getStatus());
+                    setStatus(Status.SERVER_ERROR_INTERNAL);
+                    return null;
+                }
+            }
+
+            // Find the next question or finish the assessment.
+            String nextPage = mConfig.getString("dynamicRoot", "");
+            {
+                String nextQuestionId = (String) questionData.get("nextQuestion");
+                if (nextQuestionId == null) {
+                    nextPage += "/account/assessment/results";
+                } else {
+                    nextPage += "/account/assessment/question/" + nextQuestionId;
+                }
+            }
+
+            getResponse().redirectSeeOther(nextPage);
+            return null;
+
+        } catch (Exception e) {
+            cLog.fatal("Could not render page: " + e.getMessage(), e);
+            setStatus(Status.SERVER_ERROR_INTERNAL);
+            return null;
+        }*/
+    }
+
+    /**
+     * @return The backend endpoint URI
+     */
+    private String getBackendEndpoint() {
+        return mConfig.getString("backendUri", "riap://component/backend");
+    }
+
+    /**
+     * Helper method to send a GET to the backend.
+     */
+    private JsonResponse backendGet(final String uri) {
+        cLog.debug("Sending backend GET " + uri);
+
+        final JsonResponse response = mJsonClient.get(getBackendEndpoint() + uri);
+        final Status status = response.getStatus();
+        if (!status.isSuccess() && !Status.CLIENT_ERROR_NOT_FOUND.equals(status)) {
+            cLog.warn("Error making backend request for '" + uri + "'. status = " + response.getStatus().toString());
+        }
+
+        return response;
+    }
+
+    private JsonResponse backendPut(final String uri, final Map data) {
+        cLog.debug("Sending backend PUT " + uri);
+
+        final JsonResponse response = mJsonClient.put(getBackendEndpoint() + uri, data);
+        final Status status = response.getStatus();
+        if (!status.isSuccess() && !Status.CLIENT_ERROR_NOT_FOUND.equals(status)) {
+            cLog.warn("Error making backend request for '" + uri + "'. status = " + response.getStatus().toString());
+        }
+
+        return response;
+    }
+}