liking and unliking work

functions/handlers/post.js

@@ -1,6 +1,8 @@
 /* eslint-disable prefer-arrow-callback */
 /* eslint-disable promise/always-return */
 const admin = require('firebase-admin');
+const { db } = require('../util/admin');
+
 
 exports.putPost = (req, res) => {
     const newPost = {
@@ -39,11 +41,11 @@ exports.getallPostsforUser = (req, res) => {
         return res.status(200).json(posts);
     })
     .then(function() {
-    res.status(200).send("Successfully retrieved all user's posts from database.");
-    return;
+    return res.status(200).json("Successfully retrieved all user's posts from database.");
+    
     })
     .catch(function(err) {
-    res.status(500).send("Failed to retrieve user's posts from database.", err);
+    return res.status(500).json("Failed to retrieve user's posts from database.", err);
     });
 };
 
@@ -58,14 +60,93 @@ exports.getallPosts = (req, res) => {
         return res.status(200).json(posts);
     })
     .then(function() {
-    res.status(200).send("Successfully retrieved every post from database.");
-    return;
+    return res.status(200).json("Successfully retrieved every post from database.");
     })
     .catch(function(err) {
-    res.status(500).send("Failed to retrieve posts from database.", err);
+    return res.status(500).json("Failed to retrieve posts from database.", err);
     });
 };
 
+exports.likePost = (req, res) => {
+    let postData;
+    const likeDoc = admin.firestore().collection('likes').where('userHandle', '==', req.user.handle)
+    .where('postId', '==', req.params.postId).limit(1);
+
+    const postDoc = db.doc(`/posts/${req.params.postId}`);
+
+    postDoc.get()
+    .then((doc) => {
+        if(doc.exists) {
+            postData = doc.data();
+            return likeDoc.get();
+        }
+        else
+        {
+            return res.status(404).json({error: 'Post not found'});
+        }
+    })
+    .then((data) => {
+        if (data.empty) {
+            return admin.firestore().collection('likes').add({
+                postId : req.params.postId,
+                userHandle: req.user.handle
+
+            })
+            .then(() => {
+                postData.likeCount++;
+                return postDoc.update({likeCount : postData.likeCount})
+            })
+            .then(() => {
+                return res.status(200).json(postData);
+            })
+        }
+    })
+    .catch((err) => {
+        return res.status(500).json({error: 'Something is wrong'});
+    })
+
+}
+
+exports.unlikePost = (req, res) => {
+
+    let postData;
+    const likeDoc = admin.firestore().collection('likes').where('userHandle', '==', req.user.handle)
+    .where('postId', '==', req.params.postId).limit(1);
+
+    const postDoc = db.doc(`/posts/${req.params.postId}`);
+
+    postDoc.get()
+    .then((doc) => {
+        if(doc.exists) {
+            postData = doc.data();
+            return likeDoc.get();
+        }
+        else
+        {
+            return res.status(404).json({error: 'Post not found'});
+        }
+    })
+    .then((data) => {
+            return db
+              .doc(`/likes/${data.docs[0].id}`)
+              .delete()
+              .then(() => {
+                postData.likeCount--;
+                return postDoc.update({ likeCount: postData.likeCount });
+              })
+              .then(() => {
+                res.status(200).json(postData);
+              });
+          
+    })
+    .catch((err) => {
+        console.error(err);
+        return res.status(500).json({error: 'Something is wrong'});
+    })
+
+}
+
+
 exports.getFilteredPosts = (req, res) => {
     admin.firestore().collection('posts').where('userHandle', '==', 'new user').where('microBlogTopics', '==')
 };

functions/index.js

@@ -58,7 +58,7 @@ app.get("/getUserHandles", fbAuth, getUserHandles);
 /*------------------------------------------------------------------*
  *  handlers/post.js                                                *
  *------------------------------------------------------------------*/
-const { getallPostsforUser, getallPosts, putPost } = require("./handlers/post");
+const { getallPostsforUser, getallPosts, putPost, likePost, unlikePost} = require("./handlers/post");
 
 app.get("/getallPostsforUser", fbAuth, getallPostsforUser);
 
@@ -67,6 +67,9 @@ app.get("/getallPosts", getallPosts);
 // Adds one post to the database
 app.post("/putPost", fbAuth, putPost);
 
+app.get("/like/:postId", fbAuth, likePost);
+app.get("/unlike/:postId", fbAuth, unlikePost);
+
 /*------------------------------------------------------------------*
  *  handlers/topic.js                                                *
  *------------------------------------------------------------------*/

twistter-frontend/package.json

@@ -41,5 +41,5 @@
       "last 1 safari version"
     ]
   },
-  "proxy": "https://us-central1-twistter-e4649.cloudfunctions.net/api"
+  "proxy": "http://localhost:5001/twistter-e4649/us-central1/api"
 }

twistter-frontend/src/pages/Home.js

@@ -17,7 +17,10 @@ import noImage from '../images/no-img.png';
 import Writing_Microblogs from '../Writing_Microblogs';
 
 class Home extends Component {
-  state = {};
+  state = {
+    
+  };
+
 
   componentDidMount() {
     axios
@@ -31,6 +34,7 @@ class Home extends Component {
       .catch(err => console.log(err));
   }
 
+  
   render() {
      let authenticated = this.props.user.authenticated;
 
@@ -53,6 +57,7 @@ class Home extends Component {
             <Typography variant="body2"><b>Topics:</b> {post.microBlogTopics}</Typography>        
             <br />
             <Typography variant="body2" color={"textSecondary"}>Likes {post.likeCount} Comments {post.commentCount}</Typography>
+            <Like microBlog = {post.postId}></Like>
           </CardContent>
         </Card>
       )
@@ -96,6 +101,7 @@ class Home extends Component {
   }
 }
 
+
 const mapStateToProps = (state) => ({
   user: state.user
 })
@@ -104,4 +110,55 @@ Home.propTypes = {
   user: PropTypes.object.isRequired
 }
 
+class Like extends Component {
+
+  constructor(props) {
+    super(props)
+    this.state = {
+      like: false
+    }
+
+    this.handleClick = this.handleClick.bind(this);
+  }
+
+  handleClick(){
+    
+    this.setState({
+      like: !this.state.like
+    }); 
+
+    if(this.state.like == false)
+          {
+
+            axios.get(`/like/${this.props.microBlog}`)
+            .then((res) => {
+                console.log(res.data);
+            })
+            .catch((err) => {
+              console.log(err);
+            })
+          }
+          else
+          {
+          axios.get(`/unlike/${this.props.microBlog}`)
+                .then((res) => {
+                    console.log(res.data);
+                })
+                .catch((err) => {
+                  console.log(err);
+                })
+            }
+  
+  }
+    render() {
+      const label = this.state.like ? 'Unlike' : 'Like'
+      return(
+        <div>
+          <button onClick={this.handleClick}>{label}</button>
+        </div>
+      )
+    }
+
+}
+
 export default connect(mapStateToProps)(Home);