Merge pull request #26 from StevanFreeborn/stevanfreeborn/feat/add-follows

feat: add follows

convex/_generated/api.d.ts

@@ -14,6 +14,7 @@ import type {
   FilterApi,
   FunctionReference,
 } from "convex/server";
+import type * as follows from "../follows";
 import type * as http from "../http";
 import type * as likes from "../likes";
 import type * as posts from "../posts";
@@ -28,6 +29,7 @@ import type * as users from "../users";
  * ```
  */
 declare const fullApi: ApiFromModules<{
+  follows: typeof follows;
   http: typeof http;
   likes: typeof likes;
   posts: typeof posts;

convex/follows.ts

@@ -0,0 +1,116 @@
+import { v } from 'convex/values';
+import { mutation, query } from './_generated/server';
+import { userQuery } from './users';
+
+export const addFollow = mutation({
+  args: { followingId: v.id('users') },
+  handler: async (ctx, args) => {
+    const clerkUser = await ctx.auth.getUserIdentity();
+
+    if (clerkUser === null) {
+      return;
+    }
+
+    const user = await userQuery(ctx, clerkUser.subject);
+
+    if (user === null) {
+      return;
+    }
+
+    const existingFollow = await ctx.db
+      .query('follows')
+      .withIndex('by_following_follower_id', q =>
+        q.eq('following', args.followingId).eq('follower', user._id)
+      )
+      .unique();
+
+    if (existingFollow !== null) {
+      return;
+    }
+
+    await ctx.db.insert('follows', {
+      following: args.followingId,
+      follower: user._id,
+    });
+  },
+});
+
+export const removeFollow = mutation({
+  args: { followingId: v.id('users') },
+  handler: async (ctx, args) => {
+    const clerkUser = await ctx.auth.getUserIdentity();
+
+    if (clerkUser === null) {
+      return;
+    }
+
+    const user = await userQuery(ctx, clerkUser.subject);
+
+    if (user === null) {
+      return;
+    }
+
+    const existingFollow = await ctx.db
+      .query('follows')
+      .withIndex('by_following_follower_id', q =>
+        q.eq('following', args.followingId).eq('follower', user._id)
+      )
+      .unique();
+
+    if (existingFollow === null) {
+      return;
+    }
+
+    await ctx.db.delete(existingFollow._id);
+  },
+});
+
+export const getUserFollowerCount = query({
+  args: { userId: v.id('users') },
+  handler: async (ctx, args) => {
+    const followers = await ctx.db
+      .query('follows')
+      .withIndex('by_following', q => q.eq('following', args.userId))
+      .collect();
+
+    return followers.length;
+  },
+});
+
+export const getUserFollowingCount = query({
+  args: { userId: v.id('users') },
+  handler: async (ctx, args) => {
+    const followings = await ctx.db
+      .query('follows')
+      .withIndex('by_follower', q => q.eq('follower', args.userId))
+      .collect();
+
+    return followings.length;
+  },
+});
+
+export const getFollowing = query({
+  args: { followingId: v.id('users') },
+  handler: async (ctx, args) => {
+    const currentClerkUser = await ctx.auth.getUserIdentity();
+
+    if (currentClerkUser == null) {
+      return false;
+    }
+
+    const user = await userQuery(ctx, currentClerkUser.subject);
+
+    if (user == null) {
+      return false;
+    }
+
+    const following = await ctx.db
+      .query('follows')
+      .withIndex('by_following_follower_id', q =>
+        q.eq('following', args.followingId).eq('follower', user._id)
+      )
+      .unique();
+
+    return following !== null;
+  },
+});

convex/posts.ts

@@ -147,3 +147,59 @@ export const getPostReplyCount = query({
     return replies.length;
   },
 });
+
+export const getUserPostCount = query({
+  args: { userId: v.id('users') },
+  handler: async (ctx, args) => {
+    const posts = await ctx.db
+      .query('posts')
+      .withIndex('by_user_id', q => q.eq('userId', args.userId))
+      .filter(q => q.eq(q.field('parentPostId'), undefined))
+      .collect();
+
+    return posts.length;
+  },
+});
+
+export const getAllPostsWithUser = query({
+  args: { paginationOpts: paginationOptsValidator },
+  handler: async (ctx, args) => {
+    const posts = await ctx.db
+      .query('posts')
+      .filter(q => q.eq(q.field('parentPostId'), undefined))
+      .order('desc')
+      .paginate(args.paginationOpts);
+
+    const postsWithUser = await Promise.all(
+      posts.page.map(async post => {
+        const user = await ctx.db.get(post.userId);
+
+        if (user === null) {
+          return {
+            ...post,
+            user: {
+              _id: '' as Id<'users'>,
+              _creationTime: 0,
+              clerkUsername: null,
+              clerkImageUrl: '',
+              clerkUserId: '',
+            },
+          };
+        }
+
+        return {
+          ...post,
+          user: {
+            _id: user._id,
+            _creationTime: user._creationTime,
+            clerkUsername: user.clerkUser.username,
+            clerkImageUrl: user.clerkUser.image_url,
+            clerkUserId: user.clerkUser.id,
+          },
+        };
+      })
+    );
+
+    return { ...posts, page: postsWithUser };
+  },
+});

convex/schema.ts

@@ -48,6 +48,13 @@ export default defineSchema(
     })
       .index('by_user_post_id', ['userId', 'postId'])
       .index('by_post_user_id', ['postId', 'userId']),
+    follows: defineTable({
+      following: v.id('users'), // person being followed
+      follower: v.id('users'), // person following
+    })
+      .index('by_following', ['following'])
+      .index('by_follower', ['follower'])
+      .index('by_following_follower_id', ['following', 'follower']),
   },
   { schemaValidation: false }
 );

convex/users.ts

@@ -93,6 +93,15 @@ export const deleteUser = internalMutation({
       .withIndex('by_user_post_id', q => q.eq('userId', userRecord._id))
       .collect();
 
+    const userFollowers = await ctx.db
+      .query('follows')
+      .withIndex('by_following', q => q.eq('following', userRecord._id))
+      .collect();
+    const userFollowings = await ctx.db
+      .query('follows')
+      .withIndex('by_follower', q => q.eq('follower', userRecord._id))
+      .collect();
+
     await Promise.all(
       userPosts.map(async post => await ctx.db.delete(post._id))
     );
@@ -101,6 +110,14 @@ export const deleteUser = internalMutation({
       userLikes.map(async like => await ctx.db.delete(like._id))
     );
 
+    await Promise.all(
+      userFollowers.map(async follower => await ctx.db.delete(follower._id))
+    );
+
+    await Promise.all(
+      userFollowings.map(async following => await ctx.db.delete(following._id))
+    );
+
     await ctx.db.delete(userRecord._id);
   },
 });

public/next.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 394 80"><path fill="#000" d="M262 0h68.5v12.7h-27.2v66.6h-13.6V12.7H262V0ZM149 0v12.7H94v20.4h44.3v12.6H94v21h55v12.6H80.5V0h68.7zm34.3 0h-17.8l63.8 79.4h17.9l-32-39.7 32-39.6h-17.9l-23 28.6-23-28.6zm18.3 56.7-9-11-27.1 33.7h17.8l18.3-22.7z"/><path fill="#000" d="M81 79.3 17 0H0v79.3h13.6V17l50.2 62.3H81Zm252.6-.4c-1 0-1.8-.4-2.5-1s-1.1-1.6-1.1-2.6.3-1.8 1-2.5 1.6-1 2.6-1 1.8.3 2.5 1a3.4 3.4 0 0 1 .6 4.3 3.7 3.7 0 0 1-3 1.8zm23.2-33.5h6v23.3c0 2.1-.4 4-1.3 5.5a9.1 9.1 0 0 1-3.8 3.5c-1.6.8-3.5 1.3-5.7 1.3-2 0-3.7-.4-5.3-1s-2.8-1.8-3.7-3.2c-.9-1.3-1.4-3-1.4-5h6c.1.8.3 1.6.7 2.2s1 1.2 1.6 1.5c.7.4 1.5.5 2.4.5 1 0 1.8-.2 2.4-.6a4 4 0 0 0 1.6-1.8c.3-.8.5-1.8.5-3V45.5zm30.9 9.1a4.4 4.4 0 0 0-2-3.3 7.5 7.5 0 0 0-4.3-1.1c-1.3 0-2.4.2-3.3.5-.9.4-1.6 1-2 1.6a3.5 3.5 0 0 0-.3 4c.3.5.7.9 1.3 1.2l1.8 1 2 .5 3.2.8c1.3.3 2.5.7 3.7 1.2a13 13 0 0 1 3.2 1.8 8.1 8.1 0 0 1 3 6.5c0 2-.5 3.7-1.5 5.1a10 10 0 0 1-4.4 3.5c-1.8.8-4.1 1.2-6.8 1.2-2.6 0-4.9-.4-6.8-1.2-2-.8-3.4-2-4.5-3.5a10 10 0 0 1-1.7-5.6h6a5 5 0 0 0 3.5 4.6c1 .4 2.2.6 3.4.6 1.3 0 2.5-.2 3.5-.6 1-.4 1.8-1 2.4-1.7a4 4 0 0 0 .8-2.4c0-.9-.2-1.6-.7-2.2a11 11 0 0 0-2.1-1.4l-3.2-1-3.8-1c-2.8-.7-5-1.7-6.6-3.2a7.2 7.2 0 0 1-2.4-5.7 8 8 0 0 1 1.7-5 10 10 0 0 1 4.3-3.5c2-.8 4-1.2 6.4-1.2 2.3 0 4.4.4 6.2 1.2 1.8.8 3.2 2 4.3 3.4 1 1.4 1.5 3 1.5 5h-5.8z"/></svg>

public/vercel.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 283 64"><path fill="black" d="M141 16c-11 0-19 7-19 18s9 18 20 18c7 0 13-3 16-7l-7-5c-2 3-6 4-9 4-5 0-9-3-10-7h28v-3c0-11-8-18-19-18zm-9 15c1-4 4-7 9-7s8 3 9 7h-18zm117-15c-11 0-19 7-19 18s9 18 20 18c6 0 12-3 16-7l-8-5c-2 3-5 4-8 4-5 0-9-3-11-7h28l1-3c0-11-8-18-19-18zm-10 15c2-4 5-7 10-7s8 3 9 7h-19zm-39 3c0 6 4 10 10 10 4 0 7-2 9-5l8 5c-3 5-9 8-17 8-11 0-19-7-19-18s8-18 19-18c8 0 14 3 17 8l-8 5c-2-3-5-5-9-5-6 0-10 4-10 10zm83-29v46h-9V5h9zM37 0l37 64H0L37 0zm92 5-27 48L74 5h10l18 30 17-30h10zm59 12v10l-3-1c-6 0-10 4-10 10v15h-9V17h9v9c0-5 6-9 13-9z"/></svg>

src/app/page.tsx

@@ -1,3 +1,12 @@
+import AllPosts from '@/components/AllPosts';
+
 export default function Home() {
-  return <main className='flex-1'></main>;
+  return (
+    <main className='flex flex-col items-center flex-1'>
+      <div className='flex flex-col w-full max-w-4xl gap-4'>
+        <h1 className='text-4xl font-bold'>Home</h1>
+        <AllPosts />
+      </div>
+    </main>
+  );
 }

src/components/AllPosts.tsx

@@ -0,0 +1,39 @@
+'use client';
+
+import { usePaginatedQuery } from 'convex/react';
+import { api } from '../../convex/_generated/api';
+import Loader from './Loader';
+import Post from './Post';
+
+export default function AllPosts() {
+  const PAGE_SIZE = 10;
+  const pager = usePaginatedQuery(
+    api.posts.getAllPostsWithUser,
+    {},
+    { initialNumItems: PAGE_SIZE }
+  );
+
+  function handleLoadMoreClick() {
+    pager.loadMore(PAGE_SIZE);
+  }
+
+  return (
+    <div className='flex flex-col items-center w-full'>
+      <div className='flex flex-col items-center w-full'>
+        {pager.results.map(post => (
+          <div
+            key={post._id}
+            className='w-full border border-t-0 border-gray-600 first:border-t last:rounded-b-md p-1 last:mb-4'
+          >
+            <Post post={post} />
+          </div>
+        ))}
+      </div>
+      <Loader
+        isLoading={pager.isLoading}
+        status={pager.status}
+        loadButtonClickHandler={handleLoadMoreClick}
+      />
+    </div>
+  );
+}

src/components/Loader.tsx

@@ -11,7 +11,7 @@ export default function Loader({
 }) {
   if (isLoading) {
     return (
-      <div className='flex w-full items-center justify-center gap-2 p-5 border-t border-gray-600'>
+      <div className='flex w-full items-center justify-center gap-2 p-5 border-t border-gray-600 text-sm'>
         <SpinningLoader className='animate-spin w-5 h-5' />
         Loading...
       </div>
@@ -25,7 +25,7 @@ export default function Loader({
   return (
     <div className='flex items-center'>
       <button
-        className='bg-primary-accent text-white px-3 py-1 rounded-full'
+        className='bg-primary-accent text-white px-3 py-1 rounded-full text-sm'
         onClick={loadButtonClickHandler}
         disabled={status !== 'CanLoadMore'}
       >

src/components/Navbar.tsx

@@ -3,6 +3,7 @@
 import { SignedIn, SignedOut, useUser } from '@clerk/nextjs';
 import Link from 'next/link';
 import { useEffect, useState } from 'react';
+import { AiFillHome } from 'react-icons/ai';
 import { BiLogIn, BiPlus } from 'react-icons/bi';
 import { BsPersonPlusFill } from 'react-icons/bs';
 import { ImProfile } from 'react-icons/im';
@@ -64,6 +65,19 @@ export default function Navbar() {
                 />
               </div>
             </li>
+            <li>
+              <div className='flex items-center gap-2'>
+                <div className='p-1 md:hidden'>
+                  <AiFillHome className='w-6 h-6' />
+                </div>
+                <Link
+                  onClick={() => setNavOpen(false)}
+                  href='/'
+                >
+                  Home
+                </Link>
+              </div>
+            </li>
             <li>
               <div className='flex items-center gap-2'>
                 <div className='p-1 md:hidden'>

src/components/Post.tsx

@@ -46,13 +46,15 @@ export default function Post({
   return (
     <div className='flex w-full gap-4 p-8 bg-white dark:bg-secondary-gray flex-wrap'>
       <div className='flex-shrink-0'>
-        <Image
+        <Link href={`/profile/${post.user.clerkUserId}`}>
-          alt='user profile image'
+          <Image
-          src={post.user.clerkImageUrl}
+            alt='user profile image'
-          width={40}
+            src={post.user.clerkImageUrl}
-          height={40}
+            width={40}
-          className='rounded-full object-cover border-4 border-primary-accent'
+            height={40}
-        />
+            className='rounded-full object-cover border-4 border-primary-accent'
+          />
+        </Link>
       </div>
       <div className='flex flex-1 flex-col gap-2 min-w-0'>
         <div className='flex items-center justify-between gap-2'>

src/components/PostActionButtons.tsx

@@ -36,7 +36,7 @@ export default function PostActionButton({
           href={{ pathname: `/posts/${postId}`, query: { reply: true } }}
         >
           <BsFillReplyFill />
-          <div className='flex items-center justify-center h-6 w-6 rounded-full text-xs bg-secondary-gray text-white'>
+          <div className='flex items-center justify-center h-6 w-6 rounded-full text-xs bg-primary-gray text-white'>
             {replyCount}
           </div>
         </Link>
@@ -49,8 +49,8 @@ export default function PostActionButton({
             isLiked ? 'text-primary-accent' : ''
           }`}
         >
-          <BiSolidLike />{' '}
+          <BiSolidLike className='flex-shrink-0' />
-          <div className='flex items-center justify-center h-6 w-6 rounded-full text-xs bg-secondary-gray text-white'>
+          <div className='flex items-center justify-center h-6 w-6 rounded-full text-xs bg-primary-gray text-white'>
             {likeCount}
           </div>
         </button>

src/components/Reply.tsx

@@ -2,6 +2,7 @@ import { PostWithUserDto } from '@/app/types';
 import { useUser } from '@clerk/nextjs';
 import { Text } from '@codemirror/state';
 import Image from 'next/image';
+import Link from 'next/link';
 import PostActionButton from './PostActionButtons';
 import PostActionModal from './PostActionModal';
 import PostContent from './PostContent';
@@ -17,13 +18,15 @@ export default function Reply({ post }: { post: PostWithUserDto }) {
   return (
     <div className='flex w-full gap-4'>
       <div>
-        <Image
+        <Link href={`/profile/${post.user.clerkUserId}`}>
-          alt='user profile image'
+          <Image
-          src={post.user.clerkImageUrl}
+            alt='user profile image'
-          width={40}
+            src={post.user.clerkImageUrl}
-          height={40}
+            width={40}
-          className='rounded-full object-cover border-4 border-primary-accent'
+            height={40}
-        />
+            className='rounded-full object-cover border-4 border-primary-accent'
+          />
+        </Link>
       </div>
       <div className='flex flex-col flex-1 w-full border border-gray-600 rounded-md'>
         <div className='flex flex-col w-full p-1'>

src/components/UserButton.tsx

@@ -1,8 +1,9 @@
 'use client';
 import { useMountedEffect } from '@/hooks';
 import { UserButton as ClerkUserButton } from '@clerk/nextjs';
+import { ReactNode } from 'react';
 
-export default function UserButton() {
+export default function UserButton({ children }: { children?: ReactNode }) {
   const { mounted } = useMountedEffect();
 
   if (mounted === false) {

src/components/UserPosts.tsx

@@ -42,12 +42,12 @@ export default function UserPosts({ user }: { user: UserDto }) {
   }
 
   return (
-    <div className='flex flex-col items-center w-full gap-4'>
+    <div className='flex flex-col items-center w-full'>
       <div className='flex flex-col items-center w-full'>
         {postsWithUser.map(post => (
           <div
             key={post._id}
-            className='w-full border border-t-0 border-gray-600 first:border-t last:rounded-b-md p-1'
+            className='w-full border border-t-0 border-gray-600 first:border-t last:rounded-b-md p-1 last:mb-4'
           >
             <Post post={post} />
           </div>

src/components/UserProfile.tsx

@@ -1,15 +1,53 @@
+'use client';
+
 import { UserDto } from '@/app/types';
+import { useUser } from '@clerk/nextjs';
+import { useMutation, useQuery } from 'convex/react';
 import Image from 'next/image';
 import { AiFillCalendar } from 'react-icons/ai';
+import { api } from '../../convex/_generated/api';
 
 export default function UserProfile({ user }: { user: UserDto }) {
+  const { isLoaded, isSignedIn, user: currentUser } = useUser();
+  const addFollow = useMutation(api.follows.addFollow);
+  const removeFollow = useMutation(api.follows.removeFollow);
+
+  const followerCount = useQuery(api.follows.getUserFollowerCount, {
+    userId: user._id,
+  });
+
+  const followingCount = useQuery(api.follows.getUserFollowingCount, {
+    userId: user._id,
+  });
+
+  const isFollowing = useQuery(api.follows.getFollowing, {
+    followingId: user._id,
+  });
+
+  const postCount = useQuery(api.posts.getUserPostCount, { userId: user._id });
   const username = user.clerkUsername ?? user._id;
   const userCreatedDate = new Date(user._creationTime);
+
   const monthJoined = userCreatedDate.toLocaleString(undefined, {
     month: 'short',
   });
+
   const yearJoined = userCreatedDate.getFullYear();
 
+  const countDataLoaded =
+    postCount !== undefined &&
+    followerCount !== undefined &&
+    followingCount !== undefined;
+
+  async function handleFollowButtonClick() {
+    if (isFollowing) {
+      await removeFollow({ followingId: user._id });
+      return;
+    }
+
+    await addFollow({ followingId: user._id });
+  }
+
   return (
     <div className='w-full'>
       <div className='shadow-md bg-gradient-to-r from-violet-600 via-violet-600 to-indigo-600 rounded-t-md pt-20 px-5'>
@@ -23,21 +61,59 @@ export default function UserProfile({ user }: { user: UserDto }) {
               className='rounded-full object-cover border-4 border-primary-accent'
             />
           </div>
-          <div className='flex flex-col flex-1 min-w-0 text-white'>
+          <div className='flex flex-col-reverse mb-[25px] flex-1 min-w-0 gap-0.5 md:flex-row md:mb-0 md:gap-2'>
-            <h1
+            <div className='flex flex-col min-w-0 text-white'>
-              className='font-bold overflow-hidden text-ellipsis'
+              <h1
-              title={username}
+                className='font-bold overflow-hidden text-ellipsis'
-            >
+                title={username}
-              {username}
+              >
-            </h1>
+                {username}
-            <div className='flex gap-2 items-center text-sm'>
+              </h1>
-              <AiFillCalendar className='w-4 h-4' />
+              <div className='flex gap-2 items-center text-sm'>
-              {`Joined ${monthJoined} ${yearJoined}`}
+                <AiFillCalendar className='w-4 h-4' />
+                {`Joined ${monthJoined} ${yearJoined}`}
+              </div>
+            </div>
+            <div>
+              {isLoaded && isSignedIn && currentUser.id !== user.clerkUserId ? (
+                <button
+                  onClick={handleFollowButtonClick}
+                  type='button'
+                  className={`py-0.5 px-3 rounded-full text-sm border border-white text-white ${
+                    isFollowing ? 'bg-primary-accent' : 'o'
+                  }`}
+                >
+                  Follow
+                </button>
+              ) : null}
             </div>
           </div>
         </div>
       </div>
-      <div className='h-[50px] bg-white dark:bg-primary-gray pl-5 pr-40 border border-gray-600 border-b-0'></div>
+      <div className='flex flex-1 bg-white dark:bg-primary-gray pl-5 border border-gray-600 border-b-0'>
+        <div className='flex flex-col min-h-[25px] items-start gap-1 py-1 pl-[116px] md:flex-row md:items-center md:gap-4'>
+          {countDataLoaded ? (
+            <>
+              <div>
+                <span className='font-bold whitespace-nowrap'>{postCount}</span>{' '}
+                posts
+              </div>
+              <div className='min-w-0'>
+                <span className='font-bold whitespace-nowrap'>
+                  {followerCount}
+                </span>{' '}
+                followers
+              </div>
+              <div>
+                <span className='font-bold whitespace-nowrap'>
+                  {followingCount}
+                </span>{' '}
+                following
+              </div>
+            </>
+          ) : null}
+        </div>
+      </div>
     </div>
   );
 }