added like button logic

packages/app/src/components/PostCard/index.jsx

@@ -1,10 +1,54 @@
 import React from "react"
 import * as antd from "antd"
 import { Icons } from "components/Icons"
+import classnames from "classnames"
 import moment from "moment"
 
+import { User } from "models"
+
 import "./index.less"
 
+function LikeButton(props) {
+    const [liked, setLiked] = React.useState(props.defaultLiked ?? false)
+
+    const handleClick = async () => {
+        let to = !liked
+
+        if (typeof props.onClick === "function") {
+            const result = await props.onClick(to)
+            if (typeof result === "boolean") {
+                to = result
+            }
+        }
+
+        setLiked(to)
+    }
+
+    return <button
+        className={classnames("likeButton", { ["clicked"]: liked })}
+        onClick={handleClick}
+    >
+        <div
+            className={classnames(
+                "ripple",
+                { ["clicked"]: liked }
+            )}
+        ></div>
+        <svg
+            className={classnames(
+                "heart",
+                { ["empty"]: !liked },
+                { ["clicked"]: liked },
+            )}
+            width="24"
+            height="24"
+            viewBox="0 0 24 24"
+        >
+            <path d="M12,21.35L10.55,20.03C5.4,15.36 2,12.27 2,8.5C2,5.41 4.42,3 7.5,3C9.24,3 10.91,3.81 12,5.08C13.09,3.81 14.76,3 16.5,3C19.58,3 22,5.41 22,8.5C22,12.27 18.6,15.36 13.45,20.03L12,21.35Z"></path>
+        </svg>
+    </button>
+}
+
 function PostHeader({ postData }) {
     const [timeAgo, setTimeAgo] = React.useState(0)
 
@@ -50,9 +94,9 @@ function PostContent({ message }) {
 
 function PostActions(props) {
     return <div className="actions">
-        <div className="action" id="likes" onClick={props.onClickLike}>
+        <div className="action" id="likes">
             <div className="icon">
-                <Icons.Heart />
+                <LikeButton defaultLiked={props.defaultLiked} onClick={props.onClickLike} />
             </div>
             <div className="value">
                 {String(props.likes)}
@@ -80,7 +124,56 @@ function PostActions(props) {
 }
 
 export default class PostCard extends React.Component {
+    state = {
+        loading: true,
+        selfId: null,
+        data: this.props.data,
+    }
+
+    api = window.app.request
+
+    componentDidMount = async () => {
+        const selfId = await User.selfUserId()
+
+        window.app.ws.listen(`like.post.${this.props.data._id}`, async (data) => {
+            await this.setState({ data })
+        })
+        window.app.ws.listen(`unlike.post.${this.props.data._id}`, async (data) => {
+            await this.setState({ data })
+        })
+
+        await this.setState({
+            selfId,
+            likes: this.props.data.likes,
+            loading: false
+        })
+    }
+
+    onClickLike = async (to) => {
+        let result = false
+
+        if (to) {
+            const apiResult = await await this.api.put.like({ post_id: this.props.data._id })
+            result = apiResult.success
+        } else {
+            const apiResult = await await this.api.put.unlike({ post_id: this.props.data._id })
+            result = apiResult.success
+        }
+
+        return result
+    }
+
+    hasLiked = () => {
+        return this.props.data.likes.some(user_id => user_id === this.state.selfId)
+    }
+
     render() {
+        const defaultLiked = this.hasLiked()
+
+        if (this.state.loading) {
+            return <antd.Skeleton active />
+        }
+
         return <div className="postCard">
             <div className="wrapper">
                 <PostHeader
@@ -92,8 +185,10 @@ export default class PostCard extends React.Component {
             </div>
             <div className="actionsWrapper">
                 <PostActions
-                    likes={this.props.data.likes.length}
-                    comments={this.props.data.comments.length}
+                    onClickLike={this.onClickLike}
+                    defaultLiked={defaultLiked}
+                    likes={this.state.data.likes.length}
+                    comments={this.state.data.comments.length}
                 />
             </div>
         </div>

packages/app/src/components/PostCard/index.less

@@ -191,3 +191,156 @@
         opacity: 1;
     }
 }
+
+
+
+@color-heart           : #EA442B;
+@likeAnimationDuration : .5s;
+@likeAnimationEasing   : cubic-bezier(.7, 0, .3, 1);
+
+.likeButton {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    .ripple,
+    .ripple:before,
+    .ripple:after {
+        position  : relative;
+        box-sizing: border-box;
+    }
+
+    font-size    : 40px;
+    border       : none;
+    border-radius: 50%;
+    width        : 1em;
+    height       : 1em;
+    padding      : 0;
+    margin       : 0;
+    outline      : none;
+    z-index      : 2;
+    transition   : transform @likeAnimationDuration @likeAnimationEasing;
+    cursor       : pointer;
+
+    background-color: transparent;
+
+    &:before {
+        z-index      : -1;
+        content      : '';
+        position     : absolute;
+        top          : 0;
+        left         : 0;
+        width        : 100%;
+        height       : 100%;
+        border-radius: inherit;
+        transition   : inherit;
+    }
+
+    &:after {
+        content         : '';
+        position        : absolute;
+        top             : 0;
+        left            : 0;
+        width           : 100%;
+        height          : 100%;
+        border-radius   : inherit;
+        z-index         : -1;
+    }
+
+    .heart {
+        position: relative;
+        >path {
+            stroke      : var(--primaryColor);
+            stroke-width: 2;
+            transition  : fill @likeAnimationDuration @likeAnimationEasing;
+            fill        : var(--primaryColor);
+        }
+
+        &.empty {
+            >path {
+                stroke      : var(--primaryColor);
+                stroke-width: 2;
+                transition  : fill @likeAnimationDuration @likeAnimationEasing;
+                fill        : transparent;
+            }
+        }
+
+        &.clicked {
+            animation: heart-bounce @likeAnimationDuration @likeAnimationEasing;
+
+            @keyframes heart-bounce {
+                40% {
+                    transform: scale(0.7);
+                }
+
+                0%,
+                80%,
+                100% {
+                    transform: scale(1);
+                }
+            }
+        }
+
+        animation: none;
+    }
+
+    .ripple {
+        position: absolute;
+        height       : 1em;
+        width        : 1em;
+        border-radius: 50%;
+        overflow     : hidden;
+        z-index      : 1;
+
+        &:before {
+            content      : '';
+            position     : absolute;
+            top          : 0;
+            left         : 0;
+            width        : 100%;
+            height       : 100%;
+            border       : .4em solid var(--primaryColor);
+            border-radius: inherit;
+            transform    : scale(0);
+        }
+
+        &.clicked {
+            &:before {
+                animation: ripple-out @likeAnimationDuration @likeAnimationEasing;
+            }
+        }
+       
+    }
+}
+
+@keyframes ripple-out {
+    from {
+        transform: scale(0);
+    }
+
+    to {
+        transform: scale(5);
+    }
+}
+@keyframes depress {
+
+    from,
+    to {
+        transform: none;
+    }
+
+    50% {
+        transform: translateY(5%) scale(0.9);
+    }
+}
+
+@keyframes depress-shadow {
+
+    from,
+    to {
+        transform: none;
+    }
+
+    50% {
+        transform: scale(0.5);
+    }
+}