Adding a front page / fetching subscribed forums.

- Adding subscribed to post view. Fixes #25

1 files changed, 167 insertions, 0 deletions

diff --git a/ui/src/components/post-listings.tsx b/ui/src/components/post-listings.tsx
new file mode 100644
index 00000000..fcc41cf5
--- /dev/null
+++ b/ui/src/components/post-listings.tsx
@@ -0,0 +1,167 @@
+import { Component, linkEvent } from 'inferno';
+import { Link } from 'inferno-router';
+import { Subscription } from "rxjs";
+import { retryWhen, delay, take } from 'rxjs/operators';
+import { UserOperation, Community as CommunityI, GetCommunityResponse, CommunityResponse, Post, GetPostsForm, ListingSortType, ListingType, GetPostsResponse, CreatePostLikeForm, CreatePostLikeResponse, CommunityUser} from '../interfaces';
+import { WebSocketService, UserService } from '../services';
+import { MomentTime } from './moment-time';
+import { PostListing } from './post-listing';
+import { Sidebar } from './sidebar';
+import { msgOp, mdToHtml } from '../utils';
+
+
+interface PostListingsProps {
+  communityId?: number;
+}
+
+interface PostListingsState {
+  community: CommunityI;
+  moderators: Array<CommunityUser>;
+  posts: Array<Post>;
+  sortType: ListingSortType;
+  type_: ListingType;
+}
+
+export class PostListings extends Component<PostListingsProps, PostListingsState> {
+
+  private subscription: Subscription;
+  private emptyState: PostListingsState = {
+    community: {
+      id: null,
+      name: null,
+      title: null,
+      category_id: null,
+      category_name: null,
+      creator_id: null,
+      creator_name: null,
+      number_of_subscribers: null,
+      number_of_posts: null,
+      number_of_comments: null,
+      published: null
+    },
+    moderators: [],
+    posts: [],
+    sortType: ListingSortType.Hot,
+    type_: this.props.communityId 
+    ? ListingType.Community 
+    : UserService.Instance.loggedIn
+    ? ListingType.Subscribed 
+    : ListingType.All
+  }
+
+  constructor(props, context) {
+    super(props, context);
+
+
+    this.state = this.emptyState;
+
+    this.subscription = WebSocketService.Instance.subject
+      .pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
+      .subscribe(
+        (msg) => this.parseMessage(msg),
+        (err) => console.error(err),
+        () => console.log('complete')
+      );
+
+    let getPostsForm: GetPostsForm = {
+      type_: ListingType[this.state.type_],
+      community_id: this.props.communityId,
+      limit: 10,
+      sort: ListingSortType[ListingSortType.Hot],
+    }
+    WebSocketService.Instance.getPosts(getPostsForm);
+  }
+
+  componentWillUnmount() {
+    this.subscription.unsubscribe();
+  }
+
+  render() {
+    return (
+      <div>
+        <div>{this.selects()}</div>
+        {this.state.posts.length > 0 
+          ? this.state.posts.map(post => 
+            <PostListing post={post} showCommunity={!this.props.communityId}/>) 
+          : <div>No Listings</div>
+        }
+      </div>
+    )
+  }
+
+  selects() {
+    return (
+      <div className="mb-2">
+        <select value={this.state.sortType} onChange={linkEvent(this, this.handleSortChange)} class="custom-select w-auto">
+          <option disabled>Sort Type</option>
+          <option value={ListingSortType.Hot}>Hot</option>
+          <option value={ListingSortType.New}>New</option>
+          <option disabled>──────────</option>
+          <option value={ListingSortType.TopDay}>Top Day</option>
+          <option value={ListingSortType.TopWeek}>Week</option>
+          <option value={ListingSortType.TopMonth}>Month</option>
+          <option value={ListingSortType.TopYear}>Year</option>
+          <option value={ListingSortType.TopAll}>All</option>
+        </select>
+        {!this.props.communityId && 
+          UserService.Instance.loggedIn &&
+          <select value={this.state.type_} onChange={linkEvent(this, this.handleTypeChange)} class="ml-2 custom-select w-auto">
+          <option disabled>Type</option>
+          <option value={ListingType.All}>All</option>
+          <option value={ListingType.Subscribed}>Subscribed</option>
+        </select>
+
+        }
+      </div>
+    )
+
+  }
+
+  handleSortChange(i: PostListings, event) {
+    i.state.sortType = Number(event.target.value);
+    i.setState(i.state);
+
+    let getPostsForm: GetPostsForm = {
+      community_id: i.state.community.id,
+      limit: 10,
+      sort: ListingSortType[i.state.sortType],
+      type_: ListingType[ListingType.Community]
+    }
+    WebSocketService.Instance.getPosts(getPostsForm);
+  }
+
+  handleTypeChange(i: PostListings, event) {
+    i.state.type_ = Number(event.target.value);
+    i.setState(i.state);
+
+    let getPostsForm: GetPostsForm = {
+      limit: 10,
+      sort: ListingSortType[i.state.sortType],
+      type_: ListingType[i.state.type_]
+    }
+    WebSocketService.Instance.getPosts(getPostsForm);
+  }
+
+  parseMessage(msg: any) {
+    console.log(msg);
+    let op: UserOperation = msgOp(msg);
+    if (msg.error) {
+      alert(msg.error);
+      return;
+    } else if (op == UserOperation.GetPosts) {
+      let res: GetPostsResponse = msg;
+      this.state.posts = res.posts;
+      this.setState(this.state);
+    } else if (op == UserOperation.CreatePostLike) {
+      let res: CreatePostLikeResponse = msg;
+      let found = this.state.posts.find(c => c.id == res.post.id);
+      found.my_vote = res.post.my_vote;
+      found.score = res.post.score;
+      found.upvotes = res.post.upvotes;
+      found.downvotes = res.post.downvotes;
+      this.setState(this.state);
+    }
+  }
+}
+
+