From 1f8c72b4c9270203477f507a8e7049e1292e6bc8 Mon Sep 17 00:00:00 2001
From: FRC <pico2x@gmail.com>
Date: Mon, 3 Oct 2022 00:02:31 +0100
Subject: [PATCH] Overview page on groups (#961)

* Frontpage on groups

wip

* Fix James's nits
---
 common/group.ts                               |   1 +
 firestore.rules                               |   2 +-
 functions/src/create-group.ts                 |   1 +
 functions/src/scripts/convert-tag-to-group.ts |   1 +
 web/components/contract-search.tsx            |   7 +-
 web/components/contract-select-modal.tsx      |   2 +-
 web/components/contract/contracts-grid.tsx    |   8 +-
 ...about-post.tsx => group-overview-post.tsx} |   2 +-
 web/components/groups/group-overview.tsx      | 378 ++++++++++++++++++
 web/components/pinned-select-modal.tsx        | 164 ++++++++
 web/components/post-card.tsx                  |  82 ++++
 web/pages/group/[...slugs]/index.tsx          | 198 ++-------
 12 files changed, 668 insertions(+), 178 deletions(-)
 rename web/components/groups/{group-about-post.tsx => group-overview-post.tsx} (98%)
 create mode 100644 web/components/groups/group-overview.tsx
 create mode 100644 web/components/pinned-select-modal.tsx
 create mode 100644 web/components/post-card.tsx

diff --git a/common/group.ts b/common/group.ts
index 5220a1e8..8f5728d3 100644
--- a/common/group.ts
+++ b/common/group.ts
@@ -23,6 +23,7 @@ export type Group = {
       score: number
     }[]
   }
+  pinnedItems: { itemId: string; type: 'post' | 'contract' }[]
 }
 
 export const MAX_GROUP_NAME_LENGTH = 75
diff --git a/firestore.rules b/firestore.rules
index 26649fa6..bf0375e6 100644
--- a/firestore.rules
+++ b/firestore.rules
@@ -176,7 +176,7 @@ service cloud.firestore {
       allow update: if (request.auth.uid == resource.data.creatorId || isAdmin())
                         && request.resource.data.diff(resource.data)
                         .affectedKeys()
-                        .hasOnly(['name', 'about', 'anyoneCanJoin', 'aboutPostId' ]);
+                        .hasOnly(['name', 'about', 'anyoneCanJoin', 'aboutPostId', 'pinnedItems' ]);
       allow delete: if request.auth.uid == resource.data.creatorId;
 
       match /groupContracts/{contractId} {
diff --git a/functions/src/create-group.ts b/functions/src/create-group.ts
index 76dc1298..4b3f7446 100644
--- a/functions/src/create-group.ts
+++ b/functions/src/create-group.ts
@@ -62,6 +62,7 @@ export const creategroup = newEndpoint({}, async (req, auth) => {
     totalContracts: 0,
     totalMembers: memberIds.length,
     postIds: [],
+    pinnedItems: [],
   }
 
   await groupRef.create(group)
diff --git a/functions/src/scripts/convert-tag-to-group.ts b/functions/src/scripts/convert-tag-to-group.ts
index b2e4c4d8..e1330fe1 100644
--- a/functions/src/scripts/convert-tag-to-group.ts
+++ b/functions/src/scripts/convert-tag-to-group.ts
@@ -42,6 +42,7 @@ const createGroup = async (
     totalContracts: contracts.length,
     totalMembers: 1,
     postIds: [],
+    pinnedItems: [],
   }
   await groupRef.create(group)
   // create a GroupMemberDoc for the creator
diff --git a/web/components/contract-search.tsx b/web/components/contract-search.tsx
index ba589d0e..43f17599 100644
--- a/web/components/contract-search.tsx
+++ b/web/components/contract-search.tsx
@@ -3,10 +3,7 @@ import { SearchOptions } from '@algolia/client-search'
 import { useRouter } from 'next/router'
 import { Contract } from 'common/contract'
 import { PAST_BETS, User } from 'common/user'
-import {
-  ContractHighlightOptions,
-  ContractsGrid,
-} from './contract/contracts-grid'
+import { CardHighlightOptions, ContractsGrid } from './contract/contracts-grid'
 import { ShowTime } from './contract/contract-details'
 import { Row } from './layout/row'
 import {
@@ -82,7 +79,7 @@ export function ContractSearch(props: {
   defaultFilter?: filter
   defaultPill?: string
   additionalFilter?: AdditionalFilter
-  highlightOptions?: ContractHighlightOptions
+  highlightOptions?: CardHighlightOptions
   onContractClick?: (contract: Contract) => void
   hideOrderSelector?: boolean
   cardUIOptions?: {
diff --git a/web/components/contract-select-modal.tsx b/web/components/contract-select-modal.tsx
index ea08de01..ea0505a8 100644
--- a/web/components/contract-select-modal.tsx
+++ b/web/components/contract-select-modal.tsx
@@ -91,7 +91,7 @@ export function SelectMarketsModal(props: {
               noLinkAvatar: true,
             }}
             highlightOptions={{
-              contractIds: contracts.map((c) => c.id),
+              itemIds: contracts.map((c) => c.id),
               highlightClassName:
                 '!bg-indigo-100 outline outline-2 outline-indigo-300',
             }}
diff --git a/web/components/contract/contracts-grid.tsx b/web/components/contract/contracts-grid.tsx
index d6c9c5fa..d6206766 100644
--- a/web/components/contract/contracts-grid.tsx
+++ b/web/components/contract/contracts-grid.tsx
@@ -12,8 +12,8 @@ import { VisibilityObserver } from '../visibility-observer'
 import Masonry from 'react-masonry-css'
 import { CPMMBinaryContract } from 'common/contract'
 
-export type ContractHighlightOptions = {
-  contractIds?: string[]
+export type CardHighlightOptions = {
+  itemIds?: string[]
   highlightClassName?: string
 }
 
@@ -28,7 +28,7 @@ export function ContractsGrid(props: {
     noLinkAvatar?: boolean
     showProbChange?: boolean
   }
-  highlightOptions?: ContractHighlightOptions
+  highlightOptions?: CardHighlightOptions
   trackingPostfix?: string
   breakpointColumns?: { [key: string]: number }
 }) {
@@ -43,7 +43,7 @@ export function ContractsGrid(props: {
   } = props
   const { hideQuickBet, hideGroupLink, noLinkAvatar, showProbChange } =
     cardUIOptions || {}
-  const { contractIds, highlightClassName } = highlightOptions || {}
+  const { itemIds: contractIds, highlightClassName } = highlightOptions || {}
   const onVisibilityUpdated = useCallback(
     (visible) => {
       if (visible && loadMore) {
diff --git a/web/components/groups/group-about-post.tsx b/web/components/groups/group-overview-post.tsx
similarity index 98%
rename from web/components/groups/group-about-post.tsx
rename to web/components/groups/group-overview-post.tsx
index 4d3046e9..55f0efca 100644
--- a/web/components/groups/group-about-post.tsx
+++ b/web/components/groups/group-overview-post.tsx
@@ -13,7 +13,7 @@ import { deletePost, updatePost } from 'web/lib/firebase/posts'
 import { useState } from 'react'
 import { usePost } from 'web/hooks/use-post'
 
-export function GroupAboutPost(props: {
+export function GroupOverviewPost(props: {
   group: Group
   isEditable: boolean
   post: Post | null
diff --git a/web/components/groups/group-overview.tsx b/web/components/groups/group-overview.tsx
new file mode 100644
index 00000000..9b0f7240
--- /dev/null
+++ b/web/components/groups/group-overview.tsx
@@ -0,0 +1,378 @@
+import { track } from '@amplitude/analytics-browser'
+import {
+  ArrowSmRightIcon,
+  PlusCircleIcon,
+  XCircleIcon,
+} from '@heroicons/react/outline'
+
+import PencilIcon from '@heroicons/react/solid/PencilIcon'
+
+import { Contract } from 'common/contract'
+import { Group } from 'common/group'
+import { Post } from 'common/post'
+import { useEffect, useState } from 'react'
+import { ReactNode } from 'react'
+import { getPost } from 'web/lib/firebase/posts'
+import { ContractSearch } from '../contract-search'
+import { ContractCard } from '../contract/contract-card'
+
+import Masonry from 'react-masonry-css'
+
+import { Col } from '../layout/col'
+import { Row } from '../layout/row'
+import { SiteLink } from '../site-link'
+import { GroupOverviewPost } from './group-overview-post'
+import { getContractFromId } from 'web/lib/firebase/contracts'
+import { groupPath, updateGroup } from 'web/lib/firebase/groups'
+import { PinnedSelectModal } from '../pinned-select-modal'
+import { Button } from '../button'
+import { User } from 'common/user'
+import { UserLink } from '../user-link'
+import { EditGroupButton } from './edit-group-button'
+import { JoinOrLeaveGroupButton } from './groups-button'
+import { Linkify } from '../linkify'
+import { ChoicesToggleGroup } from '../choices-toggle-group'
+import { CopyLinkButton } from '../copy-link-button'
+import { REFERRAL_AMOUNT } from 'common/economy'
+import toast from 'react-hot-toast'
+import { ENV_CONFIG } from 'common/envs/constants'
+import { PostCard } from '../post-card'
+
+const MAX_TRENDING_POSTS = 6
+
+export function GroupOverview(props: {
+  group: Group
+  isEditable: boolean
+  posts: Post[]
+  aboutPost: Post | null
+  creator: User
+  user: User | null | undefined
+  memberIds: string[]
+}) {
+  const { group, isEditable, posts, aboutPost, creator, user, memberIds } =
+    props
+  return (
+    <Col className="pm:mx-10 gap-4 px-4 pb-12 pt-4 sm:pt-0">
+      <GroupOverviewPinned
+        group={group}
+        posts={posts}
+        isEditable={isEditable}
+      />
+
+      {(group.aboutPostId != null || isEditable) && (
+        <>
+          <SectionHeader label={'About'} href={'/post/' + group.slug} />
+          <GroupOverviewPost
+            group={group}
+            isEditable={isEditable}
+            post={aboutPost}
+          />
+        </>
+      )}
+      <SectionHeader label={'Trending'} />
+      <ContractSearch
+        user={user}
+        defaultSort={'score'}
+        noControls
+        maxResults={MAX_TRENDING_POSTS}
+        defaultFilter={'all'}
+        additionalFilter={{ groupSlug: group.slug }}
+        persistPrefix={`group-trending-${group.slug}`}
+      />
+      <GroupAbout
+        group={group}
+        creator={creator}
+        isEditable={isEditable}
+        user={user}
+        memberIds={memberIds}
+      />
+    </Col>
+  )
+}
+
+function GroupOverviewPinned(props: {
+  group: Group
+  posts: Post[]
+  isEditable: boolean
+}) {
+  const { group, posts, isEditable } = props
+  const [pinned, setPinned] = useState<JSX.Element[]>([])
+  const [open, setOpen] = useState(false)
+  const [editMode, setEditMode] = useState(false)
+
+  useEffect(() => {
+    async function getPinned() {
+      if (group.pinnedItems == null) {
+        updateGroup(group, { pinnedItems: [] })
+      } else {
+        const itemComponents = await Promise.all(
+          group.pinnedItems.map(async (element) => {
+            if (element.type === 'post') {
+              const post = await getPost(element.itemId)
+              if (post) {
+                return <PostCard post={post as Post} />
+              }
+            } else if (element.type === 'contract') {
+              const contract = await getContractFromId(element.itemId)
+              if (contract) {
+                return <ContractCard contract={contract as Contract} />
+              }
+            }
+          })
+        )
+        setPinned(
+          itemComponents.filter(
+            (element) => element != undefined
+          ) as JSX.Element[]
+        )
+      }
+    }
+    getPinned()
+  }, [group, group.pinnedItems])
+
+  async function onSubmit(selectedItems: { itemId: string; type: string }[]) {
+    await updateGroup(group, {
+      pinnedItems: [
+        ...group.pinnedItems,
+        ...(selectedItems as { itemId: string; type: 'contract' | 'post' }[]),
+      ],
+    })
+    setOpen(false)
+  }
+
+  return isEditable || pinned.length > 0 ? (
+    <>
+      <Row className="mb-3 items-center justify-between">
+        <SectionHeader label={'Pinned'} />
+        {isEditable && (
+          <Button
+            color="gray"
+            size="xs"
+            onClick={() => {
+              setEditMode(!editMode)
+            }}
+          >
+            {editMode ? (
+              'Done'
+            ) : (
+              <>
+                <PencilIcon className="inline h-4 w-4" />
+                Edit
+              </>
+            )}
+          </Button>
+        )}
+      </Row>
+      <div>
+        <Masonry
+          breakpointCols={{ default: 2, 768: 1 }}
+          className="-ml-4 flex w-auto"
+          columnClassName="pl-4 bg-clip-padding"
+        >
+          {pinned.length == 0 && !editMode && (
+            <div className="flex flex-col items-center justify-center">
+              <p className="text-center text-gray-400">
+                No pinned items yet. Click the edit button to add some!
+              </p>
+            </div>
+          )}
+          {pinned.map((element, index) => (
+            <div className="relative my-2">
+              {element}
+
+              {editMode && (
+                <CrossIcon
+                  onClick={() => {
+                    const newPinned = group.pinnedItems.filter((item) => {
+                      return item.itemId !== group.pinnedItems[index].itemId
+                    })
+                    updateGroup(group, { pinnedItems: newPinned })
+                  }}
+                />
+              )}
+            </div>
+          ))}
+          {editMode && group.pinnedItems && pinned.length < 6 && (
+            <div className=" py-2">
+              <Row
+                className={
+                  'relative gap-3 rounded-lg border-4 border-dotted p-2 hover:cursor-pointer hover:bg-gray-100'
+                }
+              >
+                <button
+                  className="flex w-full justify-center"
+                  onClick={() => setOpen(true)}
+                >
+                  <PlusCircleIcon
+                    className="h-12 w-12 text-gray-600"
+                    aria-hidden="true"
+                  />
+                </button>
+              </Row>
+            </div>
+          )}
+        </Masonry>
+      </div>
+      <PinnedSelectModal
+        open={open}
+        group={group}
+        posts={posts}
+        setOpen={setOpen}
+        title="Pin a post or market"
+        description={
+          <div className={'text-md my-4 text-gray-600'}>
+            Pin posts or markets to the overview of this group.
+          </div>
+        }
+        onSubmit={onSubmit}
+      />
+    </>
+  ) : (
+    <></>
+  )
+}
+
+function SectionHeader(props: {
+  label: string
+  href?: string
+  children?: ReactNode
+}) {
+  const { label, href, children } = props
+  const content = (
+    <>
+      {label}{' '}
+      <ArrowSmRightIcon
+        className="mb-0.5 inline h-6 w-6 text-gray-500"
+        aria-hidden="true"
+      />
+    </>
+  )
+
+  return (
+    <Row className="mb-3 items-center justify-between">
+      {href ? (
+        <SiteLink
+          className="text-xl"
+          href={href}
+          onClick={() => track('group click section header', { section: href })}
+        >
+          {content}
+        </SiteLink>
+      ) : (
+        <span className="text-xl">{content}</span>
+      )}
+      {children}
+    </Row>
+  )
+}
+
+export function GroupAbout(props: {
+  group: Group
+  creator: User
+  user: User | null | undefined
+  isEditable: boolean
+  memberIds: string[]
+}) {
+  const { group, creator, isEditable, user, memberIds } = props
+  const anyoneCanJoinChoices: { [key: string]: string } = {
+    Closed: 'false',
+    Open: 'true',
+  }
+  const [anyoneCanJoin, setAnyoneCanJoin] = useState(group.anyoneCanJoin)
+  function updateAnyoneCanJoin(newVal: boolean) {
+    if (group.anyoneCanJoin == newVal || !isEditable) return
+    setAnyoneCanJoin(newVal)
+    toast.promise(updateGroup(group, { ...group, anyoneCanJoin: newVal }), {
+      loading: 'Updating group...',
+      success: 'Updated group!',
+      error: "Couldn't update group",
+    })
+  }
+  const postFix = user ? '?referrer=' + user.username : ''
+  const shareUrl = `https://${ENV_CONFIG.domain}${groupPath(
+    group.slug
+  )}${postFix}`
+  const isMember = user ? memberIds.includes(user.id) : false
+
+  return (
+    <>
+      <Col className="gap-2 rounded-b bg-white p-2">
+        <Row className={'flex-wrap justify-between'}>
+          <div className={'inline-flex items-center'}>
+            <div className="mr-1 text-gray-500">Created by</div>
+            <UserLink
+              className="text-neutral"
+              name={creator.name}
+              username={creator.username}
+            />
+          </div>
+          {isEditable ? (
+            <EditGroupButton className={'ml-1'} group={group} />
+          ) : (
+            user && (
+              <Row>
+                <JoinOrLeaveGroupButton
+                  group={group}
+                  user={user}
+                  isMember={isMember}
+                />
+              </Row>
+            )
+          )}
+        </Row>
+        <div className={'block sm:hidden'}>
+          <Linkify text={group.about} />
+        </div>
+        <Row className={'items-center gap-1'}>
+          <span className={'text-gray-500'}>Membership</span>
+          {user && user.id === creator.id ? (
+            <ChoicesToggleGroup
+              currentChoice={anyoneCanJoin.toString()}
+              choicesMap={anyoneCanJoinChoices}
+              setChoice={(choice) =>
+                updateAnyoneCanJoin(choice.toString() === 'true')
+              }
+              toggleClassName={'h-10'}
+              className={'ml-2'}
+            />
+          ) : (
+            <span className={'text-gray-700'}>
+              {anyoneCanJoin ? 'Open to all' : 'Closed (by invite only)'}
+            </span>
+          )}
+        </Row>
+
+        {anyoneCanJoin && user && (
+          <Col className="my-4 px-2">
+            <div className="text-lg">Invite</div>
+            <div className={'mb-2 text-gray-500'}>
+              Invite a friend to this group and get M${REFERRAL_AMOUNT} if they
+              sign up!
+            </div>
+
+            <CopyLinkButton
+              url={shareUrl}
+              tracking="copy group share link"
+              buttonClassName="btn-md rounded-l-none"
+              toastClassName={'-left-28 mt-1'}
+            />
+          </Col>
+        )}
+      </Col>
+    </>
+  )
+}
+
+function CrossIcon(props: { onClick: () => void }) {
+  const { onClick } = props
+
+  return (
+    <div>
+      <button className=" text-gray-500 hover:text-gray-700" onClick={onClick}>
+        <div className="absolute top-0 left-0 right-0 bottom-0 bg-gray-200 bg-opacity-50">
+          <XCircleIcon className="h-12 w-12 text-gray-600" />
+        </div>
+      </button>
+    </div>
+  )
+}
diff --git a/web/components/pinned-select-modal.tsx b/web/components/pinned-select-modal.tsx
new file mode 100644
index 00000000..98c91a7c
--- /dev/null
+++ b/web/components/pinned-select-modal.tsx
@@ -0,0 +1,164 @@
+import { Contract } from 'common/contract'
+import { Group } from 'common/group'
+import { Post } from 'common/post'
+import { useState } from 'react'
+import { PostCardList } from 'web/pages/group/[...slugs]'
+import { Button } from './button'
+import { PillButton } from './buttons/pill-button'
+import { ContractSearch } from './contract-search'
+import { Col } from './layout/col'
+import { Modal } from './layout/modal'
+import { Row } from './layout/row'
+import { LoadingIndicator } from './loading-indicator'
+
+export function PinnedSelectModal(props: {
+  title: string
+  description?: React.ReactNode
+  open: boolean
+  setOpen: (open: boolean) => void
+  onSubmit: (
+    selectedItems: { itemId: string; type: string }[]
+  ) => void | Promise<void>
+  contractSearchOptions?: Partial<Parameters<typeof ContractSearch>[0]>
+  group: Group
+  posts: Post[]
+}) {
+  const {
+    title,
+    description,
+    open,
+    setOpen,
+    onSubmit,
+    contractSearchOptions,
+    posts,
+    group,
+  } = props
+
+  const [selectedItem, setSelectedItem] = useState<{
+    itemId: string
+    type: string
+  } | null>(null)
+  const [loading, setLoading] = useState(false)
+  const [selectedTab, setSelectedTab] = useState<'contracts' | 'posts'>('posts')
+
+  async function selectContract(contract: Contract) {
+    selectItem(contract.id, 'contract')
+  }
+
+  async function selectPost(post: Post) {
+    selectItem(post.id, 'post')
+  }
+
+  async function selectItem(itemId: string, type: string) {
+    setSelectedItem({ itemId: itemId, type: type })
+  }
+
+  async function onFinish() {
+    setLoading(true)
+    if (selectedItem) {
+      await onSubmit([
+        {
+          itemId: selectedItem.itemId,
+          type: selectedItem.type,
+        },
+      ])
+      setLoading(false)
+      setOpen(false)
+      setSelectedItem(null)
+    }
+  }
+
+  return (
+    <Modal open={open} setOpen={setOpen} className={'sm:p-0'} size={'lg'}>
+      <Col className="h-[85vh] w-full gap-4 rounded-md bg-white">
+        <div className="p-8 pb-0">
+          <Row>
+            <div className={'text-xl text-indigo-700'}>{title}</div>
+
+            {!loading && (
+              <Row className="grow justify-end gap-4">
+                {selectedItem && (
+                  <Button onClick={onFinish} color="indigo">
+                    Add to Pinned
+                  </Button>
+                )}
+                <Button
+                  onClick={() => {
+                    setSelectedItem(null)
+                    setOpen(false)
+                  }}
+                  color="gray"
+                >
+                  Cancel
+                </Button>
+              </Row>
+            )}
+          </Row>
+          {description}
+        </div>
+
+        {loading && (
+          <div className="w-full justify-center">
+            <LoadingIndicator />
+          </div>
+        )}
+        <div>
+          <Row className="justify-center gap-4">
+            <PillButton
+              onSelect={() => setSelectedTab('contracts')}
+              selected={selectedTab === 'contracts'}
+            >
+              Contracts
+            </PillButton>
+            <PillButton
+              onSelect={() => setSelectedTab('posts')}
+              selected={selectedTab === 'posts'}
+            >
+              Posts
+            </PillButton>
+          </Row>
+        </div>
+
+        {selectedTab === 'contracts' ? (
+          <div className="overflow-y-auto px-2 sm:px-8">
+            <ContractSearch
+              hideOrderSelector
+              onContractClick={selectContract}
+              cardUIOptions={{
+                hideGroupLink: true,
+                hideQuickBet: true,
+                noLinkAvatar: true,
+              }}
+              highlightOptions={{
+                itemIds: [selectedItem?.itemId ?? ''],
+                highlightClassName:
+                  '!bg-indigo-100 outline outline-2 outline-indigo-300',
+              }}
+              additionalFilter={{ groupSlug: group.slug }}
+              persistPrefix={`group-${group.slug}`}
+              headerClassName="bg-white sticky"
+              {...contractSearchOptions}
+            />
+          </div>
+        ) : (
+          <>
+            <div className="mt-2 px-2">
+              <PostCardList
+                posts={posts}
+                onPostClick={selectPost}
+                highlightOptions={{
+                  itemIds: [selectedItem?.itemId ?? ''],
+                  highlightClassName:
+                    '!bg-indigo-100 outline outline-2 outline-indigo-300',
+                }}
+              />
+              {posts.length === 0 && (
+                <div className="text-center text-gray-500">No posts yet</div>
+              )}
+            </div>
+          </>
+        )}
+      </Col>
+    </Modal>
+  )
+}
diff --git a/web/components/post-card.tsx b/web/components/post-card.tsx
new file mode 100644
index 00000000..a20748eb
--- /dev/null
+++ b/web/components/post-card.tsx
@@ -0,0 +1,82 @@
+import { track } from '@amplitude/analytics-browser'
+import clsx from 'clsx'
+import { Post } from 'common/post'
+import Link from 'next/link'
+import { useUserById } from 'web/hooks/use-user'
+import { postPath } from 'web/lib/firebase/posts'
+import { fromNow } from 'web/lib/util/time'
+import { Avatar } from './avatar'
+import { CardHighlightOptions } from './contract/contracts-grid'
+import { Row } from './layout/row'
+import { UserLink } from './user-link'
+
+export function PostCard(props: {
+  post: Post
+  onPostClick?: (post: Post) => void
+  highlightOptions?: CardHighlightOptions
+}) {
+  const { post, onPostClick, highlightOptions } = props
+  const creatorId = post.creatorId
+
+  const user = useUserById(creatorId)
+  const { itemIds: itemIds, highlightClassName } = highlightOptions || {}
+
+  if (!user) return <> </>
+
+  return (
+    <div className="relative py-1">
+      <Row
+        className={clsx(
+          ' relative gap-3 rounded-lg bg-white py-2 shadow-md hover:cursor-pointer hover:bg-gray-100',
+          itemIds?.includes(post.id) && highlightClassName
+        )}
+      >
+        <div className="flex-shrink-0">
+          <Avatar className="h-12 w-12" username={user?.username} />
+        </div>
+        <div className="">
+          <div className="text-sm text-gray-500">
+            <UserLink
+              className="text-neutral"
+              name={user?.name}
+              username={user?.username}
+            />
+            <span className="mx-1">•</span>
+            <span className="text-gray-500">{fromNow(post.createdTime)}</span>
+          </div>
+          <div className="text-lg font-medium text-gray-900">{post.title}</div>
+        </div>
+      </Row>
+      {onPostClick ? (
+        <a
+          className="absolute top-0 left-0 right-0 bottom-0"
+          onClick={(e) => {
+            // Let the browser handle the link click (opens in new tab).
+            if (e.ctrlKey || e.metaKey) return
+
+            e.preventDefault()
+            track('select post card'),
+              {
+                slug: post.slug,
+                postId: post.id,
+              }
+            onPostClick(post)
+          }}
+        />
+      ) : (
+        <Link href={postPath(post.slug)}>
+          <a
+            onClick={() => {
+              track('select post card'),
+                {
+                  slug: post.slug,
+                  postId: post.id,
+                }
+            }}
+            className="absolute top-0 left-0 right-0 bottom-0"
+          />
+        </Link>
+      )}
+    </div>
+  )
+}
diff --git a/web/pages/group/[...slugs]/index.tsx b/web/pages/group/[...slugs]/index.tsx
index a23ce602..658f1809 100644
--- a/web/pages/group/[...slugs]/index.tsx
+++ b/web/pages/group/[...slugs]/index.tsx
@@ -11,12 +11,11 @@ import {
   groupPath,
   joinGroup,
   listMemberIds,
-  updateGroup,
 } from 'web/lib/firebase/groups'
 import { Row } from 'web/components/layout/row'
 import { firebaseLogin, getUser, User } from 'web/lib/firebase/users'
 import { Col } from 'web/components/layout/col'
-import { useUser, useUserById } from 'web/hooks/use-user'
+import { useUser } from 'web/hooks/use-user'
 import {
   useGroup,
   useGroupContractIds,
@@ -24,27 +23,17 @@ import {
 } from 'web/hooks/use-group'
 import { Leaderboard } from 'web/components/leaderboard'
 import { formatMoney } from 'common/util/format'
-import { EditGroupButton } from 'web/components/groups/edit-group-button'
 import Custom404 from '../../404'
 import { SEO } from 'web/components/SEO'
-import { Linkify } from 'web/components/linkify'
 import { fromPropz, usePropz } from 'web/hooks/use-propz'
 
-import { ChoicesToggleGroup } from 'web/components/choices-toggle-group'
 import { ContractSearch } from 'web/components/contract-search'
-import { JoinOrLeaveGroupButton } from 'web/components/groups/groups-button'
-import { CopyLinkButton } from 'web/components/copy-link-button'
-import { ENV_CONFIG } from 'common/envs/constants'
 import { useSaveReferral } from 'web/hooks/use-save-referral'
 import { Button } from 'web/components/button'
 import { listAllCommentsOnGroup } from 'web/lib/firebase/comments'
 import { GroupComment } from 'common/comment'
-import { REFERRAL_AMOUNT } from 'common/economy'
-import { UserLink } from 'web/components/user-link'
-import { GroupAboutPost } from 'web/components/groups/group-about-post'
-import { getPost, listPosts, postPath } from 'web/lib/firebase/posts'
+import { getPost, listPosts } from 'web/lib/firebase/posts'
 import { Post } from 'common/post'
-import { Spacer } from 'web/components/layout/spacer'
 import { usePost, usePosts } from 'web/hooks/use-post'
 import { useAdmin } from 'web/hooks/use-admin'
 import { track } from '@amplitude/analytics-browser'
@@ -53,10 +42,11 @@ import { SelectMarketsModal } from 'web/components/contract-select-modal'
 import { BETTORS } from 'common/user'
 import { Page } from 'web/components/page'
 import { Tabs } from 'web/components/layout/tabs'
-import { Avatar } from 'web/components/avatar'
 import { Title } from 'web/components/title'
-import { fromNow } from 'web/lib/util/time'
 import { CreatePost } from 'web/components/create-post'
+import { GroupOverview } from 'web/components/groups/group-overview'
+import { CardHighlightOptions } from 'web/components/contract/contracts-grid'
+import { PostCard } from 'web/components/post-card'
 
 export const getStaticProps = fromPropz(getStaticPropz)
 export async function getStaticPropz(props: { params: { slugs: string[] } }) {
@@ -203,24 +193,18 @@ export default function GroupPage(props: {
     </>
   )
 
-  const aboutTab = (
-    <Col>
-      {(group.aboutPostId != null || isCreator || isAdmin) && (
-        <GroupAboutPost
-          group={group}
-          isEditable={!!isCreator || isAdmin}
-          post={aboutPost}
-        />
-      )}
-      <Spacer h={3} />
+  const overviewPage = (
+    <>
       <GroupOverview
         group={group}
+        posts={groupPosts}
+        isEditable={!!isCreator || isAdmin}
+        aboutPost={aboutPost}
         creator={creator}
-        isCreator={!!isCreator}
         user={user}
         memberIds={memberIds}
       />
-    </Col>
+    </>
   )
 
   const questionsTab = (
@@ -261,14 +245,14 @@ export default function GroupPage(props: {
       title: 'Leaderboards',
       content: leaderboardTab,
     },
-    {
-      title: 'About',
-      content: aboutTab,
-    },
     {
       title: 'Posts',
       content: postsPage,
     },
+    {
+      title: 'Overview',
+      content: overviewPage,
+    },
   ]
 
   return (
@@ -326,103 +310,6 @@ function JoinOrAddQuestionsButtons(props: {
   ) : null
 }
 
-function GroupOverview(props: {
-  group: Group
-  creator: User
-  user: User | null | undefined
-  isCreator: boolean
-  memberIds: string[]
-}) {
-  const { group, creator, isCreator, user, memberIds } = props
-  const anyoneCanJoinChoices: { [key: string]: string } = {
-    Closed: 'false',
-    Open: 'true',
-  }
-  const [anyoneCanJoin, setAnyoneCanJoin] = useState(group.anyoneCanJoin)
-  function updateAnyoneCanJoin(newVal: boolean) {
-    if (group.anyoneCanJoin == newVal || !isCreator) return
-    setAnyoneCanJoin(newVal)
-    toast.promise(updateGroup(group, { ...group, anyoneCanJoin: newVal }), {
-      loading: 'Updating group...',
-      success: 'Updated group!',
-      error: "Couldn't update group",
-    })
-  }
-  const postFix = user ? '?referrer=' + user.username : ''
-  const shareUrl = `https://${ENV_CONFIG.domain}${groupPath(
-    group.slug
-  )}${postFix}`
-  const isMember = user ? memberIds.includes(user.id) : false
-
-  return (
-    <>
-      <Col className="gap-2 rounded-b bg-white p-2">
-        <Row className={'flex-wrap justify-between'}>
-          <div className={'inline-flex items-center'}>
-            <div className="mr-1 text-gray-500">Created by</div>
-            <UserLink
-              className="text-neutral"
-              name={creator.name}
-              username={creator.username}
-            />
-          </div>
-          {isCreator ? (
-            <EditGroupButton className={'ml-1'} group={group} />
-          ) : (
-            user && (
-              <Row>
-                <JoinOrLeaveGroupButton
-                  group={group}
-                  user={user}
-                  isMember={isMember}
-                />
-              </Row>
-            )
-          )}
-        </Row>
-        <div className={'block sm:hidden'}>
-          <Linkify text={group.about} />
-        </div>
-        <Row className={'items-center gap-1'}>
-          <span className={'text-gray-500'}>Membership</span>
-          {user && user.id === creator.id ? (
-            <ChoicesToggleGroup
-              currentChoice={anyoneCanJoin.toString()}
-              choicesMap={anyoneCanJoinChoices}
-              setChoice={(choice) =>
-                updateAnyoneCanJoin(choice.toString() === 'true')
-              }
-              toggleClassName={'h-10'}
-              className={'ml-2'}
-            />
-          ) : (
-            <span className={'text-gray-700'}>
-              {anyoneCanJoin ? 'Open to all' : 'Closed (by invite only)'}
-            </span>
-          )}
-        </Row>
-
-        {anyoneCanJoin && user && (
-          <Col className="my-4 px-2">
-            <div className="text-lg">Invite</div>
-            <div className={'mb-2 text-gray-500'}>
-              Invite a friend to this group and get M${REFERRAL_AMOUNT} if they
-              sign up!
-            </div>
-
-            <CopyLinkButton
-              url={shareUrl}
-              tracking="copy group share link"
-              buttonClassName="btn-md rounded-l-none"
-              toastClassName={'-left-28 mt-1'}
-            />
-          </Col>
-        )}
-      </Col>
-    </>
-  )
-}
-
 function GroupLeaderboard(props: {
   topUsers: { user: User; score: number }[]
   title: string
@@ -449,7 +336,7 @@ function GroupLeaderboard(props: {
   )
 }
 
-function GroupPosts(props: { posts: Post[]; group: Group }) {
+export function GroupPosts(props: { posts: Post[]; group: Group }) {
   const { posts, group } = props
   const [showCreatePost, setShowCreatePost] = useState(false)
   const user = useUser()
@@ -475,9 +362,7 @@ function GroupPosts(props: { posts: Post[]; group: Group }) {
       </Row>
 
       <div className="mt-2">
-        {posts.map((post) => (
-          <PostCard key={post.id} post={post} />
-        ))}
+        <PostCardList posts={posts} />
         {posts.length === 0 && (
           <div className="text-center text-gray-500">No posts yet</div>
         )}
@@ -488,41 +373,22 @@ function GroupPosts(props: { posts: Post[]; group: Group }) {
   return showCreatePost ? createPost : postList
 }
 
-function PostCard(props: { post: Post }) {
-  const { post } = props
-  const creatorId = post.creatorId
-
-  const user = useUserById(creatorId)
-
-  if (!user) return <> </>
-
+export function PostCardList(props: {
+  posts: Post[]
+  highlightOptions?: CardHighlightOptions
+  onPostClick?: (post: Post) => void
+}) {
+  const { posts, onPostClick, highlightOptions } = props
   return (
-    <div className="py-1">
-      <Link href={postPath(post.slug)}>
-        <Row
-          className={
-            'relative gap-3 rounded-lg bg-white p-2 shadow-md hover:cursor-pointer hover:bg-gray-100'
-          }
-        >
-          <div className="flex-shrink-0">
-            <Avatar className="h-12 w-12" username={user?.username} />
-          </div>
-          <div className="">
-            <div className="text-sm text-gray-500">
-              <UserLink
-                className="text-neutral"
-                name={user?.name}
-                username={user?.username}
-              />
-              <span className="mx-1">•</span>
-              <span className="text-gray-500">{fromNow(post.createdTime)}</span>
-            </div>
-            <div className="text-lg font-medium text-gray-900">
-              {post.title}
-            </div>
-          </div>
-        </Row>
-      </Link>
+    <div className="w-full">
+      {posts.map((post) => (
+        <PostCard
+          key={post.id}
+          post={post}
+          onPostClick={onPostClick}
+          highlightOptions={highlightOptions}
+        />
+      ))}
     </div>
   )
 }