Basic discussions forum framework

Adds the basic structure for the Discussions MFE around which future development
will happen.

src/data/constants.js

@@ -0,0 +1,51 @@
+import { getConfig } from '@edx/frontend-platform';
+
+export const API_BASE_URL = getConfig().LMS_BASE_URL;
+
+export const LoadingStatus = {
+  LOADING: 'loading',
+  LOADED: 'loaded',
+  FAILED: 'failed',
+  DENIED: 'denied',
+};
+
+export const ThreadOrdering = {
+  BY_LAST_ACTIVITY: 'sort_by_last_activity',
+  BY_COMMENT_COUNT: 'sort_by_comment_count',
+  BY_VOTE_COUNT: 'sort_by_vote_count',
+};
+
+export const ThreadView = {
+  UNREAD: 'unread',
+  UNANSWERED: 'unanswered',
+};
+
+export const MyPostsFilter = {
+  MY_POSTS: 'my_posts',
+  MY_DISCUSSIONS: 'my_discussions',
+  MY_QUESTIONS: 'my_questions',
+};
+
+export const AllPostsFilter = {
+  ALL_POSTS: 'all_posts',
+  ALL_DISCUSSIONS: 'all_discussions',
+  ALL_QUESTIONS: 'all_questions',
+};
+
+export const TopicsFilter = {
+  ALL: 'all_topics',
+  COURSE_SECTION: 'course_section_topics',
+  GENERAL: 'general_topics',
+};
+
+export const Routes = {
+  TOPICS: {
+    PATH: '/discussions/:courseId/topics',
+    ALL: '/discussions/:courseId/topics',
+  },
+  POSTS: {
+    PATH: '/discussions/:courseId/posts/:discussionId/:threadId?',
+    MY_POSTS: '/discussions/:courseId/posts/mine',
+    ALL_POSTS: '/discussions/:courseId/posts/all',
+  },
+};