Merge pull request #17 from Permissionless-Software-Foundation/dh-global-feed

feat(nostr): Created Nostr Global Feed page

package.json

@@ -23,6 +23,7 @@
     "react": "19.0.0",
     "react-bootstrap": "2.10.7",
     "react-dom": "19.0.0",
+    "react-markdown": "10.1.0",
     "react-router-dom": "7.1.3",
     "react-scripts": "5.0.1",
     "stream-browserify": "3.0.0",

src/components/app-body/index.js

@@ -25,7 +25,8 @@ import SignMessage from './sign/index.js'
 import ServerSelectView from './configuration/select-server-view'
 import NostrPost from './nostr/nostr-post/index.js'
 import NostrRead from './nostr/nostr-read/index.js'
-
+import GlobalFeed from './nostr/global-feed/index.js'
+import UserDataReview from './user-data-review'
 function AppBody (props) {
   // Dependency injection through props
   const appData = props.appData
@@ -47,7 +48,8 @@ function AppBody (props) {
         <Route path='/configuration' element={<ServerSelectView appData={appData} />} />
         <Route path='/nostr-post' element={<NostrPost appData={appData} />} />
         <Route path='/nostr-read' element={<NostrRead appData={appData} />} />
-
+        <Route path='/global-feed' element={<GlobalFeed appData={appData} />} />
+        <Route path='/user-data/:cid' element={<UserDataReview appData={appData} />} />
       </Routes>
       {/** Show in all paths except the servers view */}
       {/* {appData.currentPath !== '/servers' && <SelectServerButton linkTo='/servers' appData={appData} />} */}

src/components/app-body/nfts-for-sale/index.js

@@ -98,7 +98,7 @@ function NftsForSale (props) {
 
         // Try to get token data.
         const tokenData = await appData.wallet.getTokenData(thisToken.tokenId)
-
+        console.log('tokenData', tokenData)
         if (tokenData) {
           // Set data to the token object , this can be used to display the token name in the token card component.
           thisToken.tokenData = tokenData
@@ -115,7 +115,7 @@ function NftsForSale (props) {
   }, [appData])
 
   // Fetch mutable data if it exist and get the token icon url
-  const fetchTokenInfo = useCallback(async (token) => {
+  const fetchTokenMutableData = useCallback(async (token) => {
     try {
       // Get the token data
       const tokenData = token.tokenData
@@ -135,15 +135,16 @@ function NftsForSale (props) {
       if (json.fullSizedUrl && json.fullSizedUrl.includes('http')) {
         iconUrl = json.fullSizedUrl
       }
+      const userData = json.userData
       // Return icon url
-      return iconUrl
+      return { iconUrl, userData }
     } catch (error) {
       return false
     }
   }, [appData])
 
   //  This function loads the token icons from the ipfs gateways.
-  const lazyLoadTokenIcons = useCallback(async (tokens) => {
+  const lazyLoadMutableData = useCallback(async (tokens) => {
     try {
       setIconsAreLoaded(false)
       // map each token and fetch the icon url
@@ -154,11 +155,12 @@ function NftsForSale (props) {
         if (thisToken.iconAlreadyDownloaded) continue
 
         // Try to get token icon url from mutable data.
-        const iconUrl = await fetchTokenInfo(thisToken)
+        const { iconUrl, userData } = await fetchTokenMutableData(thisToken)
         console.log('iconUrl', iconUrl)
         if (iconUrl) {
           // Set the icon url to the token , this can be used to display the icon in the token card component.
           thisToken.icon = iconUrl
+          thisToken.tokenData.userData = userData
         }
 
         // Mark token to prevent fetch token icon again.
@@ -169,7 +171,39 @@ function NftsForSale (props) {
     } catch (error) {
       setIconsAreLoaded(true)
     }
-  }, [fetchTokenInfo])
+  }, [fetchTokenMutableData, appData])
+
+  //  Check if exiist token data in the cache and add it to the tokens object
+  const reviewNftCachedData = useCallback(async (offers) => {
+    const cacheData = appData.nftForSaleCacheData
+    console.log(`Token data from cache: ${JSON.stringify(cacheData, null, 2)}`)
+    // Map all offers
+    for (let i = 0; i < offers.length; i++) {
+      const thisToken = offers[i]
+      const cacheToken = cacheData[thisToken.tokenId]
+      // If cache data exists, add it to the token object
+      if (cacheToken) {
+        thisToken.tokenData = cacheToken.tokenData
+        thisToken.icon = cacheToken.tokenIcon
+      }
+    }
+  }, [appData])
+
+  //  Check if exiist token data in the cache and add it to the tokens object
+  const updateNFTCachedData = useCallback(async (offers) => {
+    // Map all offers
+    for (let i = 0; i < offers.length; i++) {
+      const thisToken = offers[i]
+      // save token icon and token data in cache
+      const newTokenCacheData = {
+        tokenIcon: thisToken.icon,
+        tokenData: thisToken.tokenData
+      }
+
+      console.log('newTokenCacheData: ', newTokenCacheData)
+      appData.updateNFTCachedData(thisToken.tokenId, newTokenCacheData)
+    }
+  }, [appData])
 
   // Main function to load NFT offers
   const loadNftOffers = useCallback(async () => {
@@ -178,17 +212,23 @@ function NftsForSale (props) {
       // Get tokens in offers
       const offers = await getNftOffers()
       console.log('offers: ', offers)
+      // Review cached data to populate token data from cached data
+      await reviewNftCachedData(offers)
+      // set state to start displaying tokens cards.
       setOffers(offers)
-      // Load tokens data
+      // Load tokens data for  any updates to the token data
       await lazyLoadTokenData(offers)
-      // Load tokens icons
-      await lazyLoadTokenIcons(offers)
+      // Load tokens icons from mutable data
+      await lazyLoadMutableData(offers)
+
+      //  Update cached data with the latest retrieved data
+      await updateNFTCachedData(offers)
       setIsLoading(false)
     } catch (err) {
       setIsLoading(false)
       console.error('Error loading NFT offers:', err)
     }
-  }, [lazyLoadTokenData, lazyLoadTokenIcons, getNftOffers])
+  }, [lazyLoadTokenData, lazyLoadMutableData, getNftOffers, reviewNftCachedData, updateNFTCachedData])
 
   // Effect to load NFTs on component mount
   useEffect(() => {

src/components/app-body/nfts-for-sale/info-button.js

@@ -6,11 +6,12 @@
 */
 
 // Global npm libraries
-import React, { useState } from 'react'
+import React, { useEffect, useState } from 'react'
 import { Button, Modal, Container, Row, Col } from 'react-bootstrap'
 
 function InfoButton (props) {
   const [show, setShow] = useState(false)
+  const [mutableDataCid, setMutableDataCid] = useState(null)
 
   const handleClose = () => {
     console.log('handleClose()')
@@ -22,6 +23,32 @@ function InfoButton (props) {
     console.log('handleOpen()')
     setShow(true)
   }
+  // Get Cid from url
+  const parseCid = (url) => {
+    // get the cid from the url format 'ipfs://bafybeicem27xbzs65uvbcgykcmscsgln3lmhbfrcoec3gdttkdgtxv5acq
+    if (url && url.includes('ipfs://')) {
+      const cid = url.split('ipfs://')[1]
+      return cid
+    }
+    return url
+  }
+
+  // Get token user data if it exists and verify if it contains media or markdown
+  useEffect(() => {
+    try {
+      const userDataStr = props.token.tokenData.userData
+      if (userDataStr) {
+        const userData = JSON.parse(userDataStr)
+
+        // If user data contains media or markdown, set the mutable data cid
+        if (userData?.media || userData?.markdown) {
+          setMutableDataCid(parseCid(props.token.tokenData.mutableData))
+        }
+      }
+    } catch (error) {
+      // Do nothing
+    }
+  }, [props.token, show])
 
   // Replace with dummy button until token data is loaded.
   if (!props.token.tokenData) {
@@ -70,6 +97,22 @@ function InfoButton (props) {
               <Col xs={8}>{props.token.tokenType}</Col>
             </Row>
 
+            {mutableDataCid && (
+              <Row>
+                <Col xs={4}><b>User Data</b>:</Col>
+                <Col xs={8}>
+                  <a
+                    href={`/user-data/${mutableDataCid}`}
+                    target='_blank'
+                    rel='noopener noreferrer'
+                    className='btn btn-link p-0'
+                  >
+                    View User Data
+                  </a>
+                </Col>
+              </Row>
+            )}
+
           </Container>
         </Modal.Body>
         <Modal.Footer />

src/components/app-body/nostr/global-feed/feed.js

@@ -0,0 +1,98 @@
+/**
+ * Component for reading global nostr posts
+ */
+// Global npm libraries
+import React, { useEffect, useState } from 'react'
+import { Container, Card, Spinner } from 'react-bootstrap'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+
+import { RelayPool } from 'nostr'
+
+function Feed (props) {
+  const { bchWalletState } = props.appData
+  const [posts, setPosts] = useState([])
+  const [loaded, setLoaded] = useState(false)
+
+  useEffect(() => {
+    const start = () => {
+      const psf = 'wss://nostr-relay.psfoundation.info'
+
+      const pool = RelayPool([psf])
+      pool.on('open', relay => {
+        relay.subscribe('REQ', { limit: 10, kinds: [1], '#t': ['slpdex-socialmedia'] })
+      })
+
+      pool.on('eose', relay => {
+        console.log('Closing Relay')
+        setLoaded(true)
+        relay.close()
+      })
+
+      pool.on('event', (relay, subId, ev) => {
+        console.log('Received event:', ev)
+        // const profile = JSON.parse(ev.content)
+        setPosts(currentPosts => [...currentPosts, ev])
+      })
+    }
+
+    if (!loaded) {
+      start()
+    }
+  }, [bchWalletState, loaded])
+
+  return (
+    <Container className='mt-4 mb-5' style={{ marginBottom: '50px' }}>
+      <div>
+        {posts.map((post, index) => (
+          <Card key={index} className='mb-4 bg-light rounded-4 shadow-sm border-0'>
+            <Card.Body className='p-3'>
+              <div className='d-flex align-items-center gap-3 mb-3'>
+                <div
+                  className='rounded-circle bg-gradient shadow d-flex align-items-center justify-content-center'
+                  style={{
+                    width: '48px',
+                    height: '48px',
+                    background: 'linear-gradient(45deg, #6c757d, #495057)'
+                  }}
+                >
+                  <FontAwesomeIcon icon={faUser} size='1x' color='#7c7c7d' />
+                </div>
+                <div className='flex-grow-1'>
+                  <div className='fw-bold mb-1'>
+                    {post.pubkey.slice(0, 8) + '...'}
+                  </div>
+                  <small className='text-muted'>
+                    {`${post.pubkey.slice(0, 8)}...${post.pubkey.slice(-5)}`}
+                  </small>
+                </div>
+                <small className='text-muted'>
+                  {new Date(post.created_at * 1000).toLocaleString()}
+                </small>
+              </div>
+              <div className='mb-4'>
+                <div className='fs-5 ms-5 text-dark' style={{ lineHeight: '1.3' }}>
+                  {post.content}
+                </div>
+              </div>
+            </Card.Body>
+          </Card>
+        ))}
+        {!posts.length && loaded && (
+          <div className='text-center text-muted py-5 bg-light rounded-4 shadow-sm'>
+            <i className='bi bi-inbox-fill fs-1 mb-3 d-block opacity-50' />
+            <div>No posts found</div>
+          </div>
+        )}
+
+        {!loaded && (
+          <div className='text-center text-muted py-5 bg-light rounded-4 shadow-sm'>
+            <Spinner animation='border' />
+          </div>
+        )}
+      </div>
+    </Container>
+  )
+}
+
+export default Feed

src/components/app-body/nostr/global-feed/index.js

@@ -0,0 +1,31 @@
+/*
+Component for reading the nostr global feed.
+*/
+
+// Global npm libraries
+import React from 'react'
+import { Container } from 'react-bootstrap'
+import Feed from './feed'
+
+function GlobalFeed (props) {
+  const { appData } = props
+
+  return (
+    <>
+      <Container>
+        <h2 style={{
+          textAlign: 'center',
+          margin: '20px 0 50px 0',
+          padding: '10px',
+          borderBottom: '2px solid #ccc'
+        }}
+        >
+          Global Feed
+        </h2>
+        <Feed appData={appData} />
+      </Container>
+    </>
+  )
+}
+
+export default GlobalFeed

src/components/app-body/nostr/nostr-read/public-read.js

@@ -3,7 +3,7 @@
  */
 // Global npm libraries
 import React, { useEffect, useState } from 'react'
-import { Container, Card } from 'react-bootstrap'
+import { Container, Card, Spinner } from 'react-bootstrap'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
 import { faUser } from '@fortawesome/free-solid-svg-icons'
 
@@ -28,6 +28,7 @@ function PublicRead (props) {
 
       pool.on('eose', relay => {
         console.log('Closing Relay')
+        setLoaded(true)
         relay.close()
       })
 
@@ -35,8 +36,6 @@ function PublicRead (props) {
         console.log('Received event:', ev)
         setPosts(currentPosts => [...currentPosts, ev])
       })
-
-      setLoaded(true)
     }
 
     if (!loaded) {
@@ -85,6 +84,11 @@ function PublicRead (props) {
             <div>No posts found</div>
           </div>
         )}
+        {!loaded && (
+          <div className='text-center text-muted py-5 bg-light rounded-4 shadow-sm'>
+            <Spinner animation='border' />
+          </div>
+        )}
       </div>
     </Container>
   )

src/components/app-body/user-data-review.js

@@ -0,0 +1,97 @@
+/*
+  Search in the provided cid of a mutable data, get the data from the user data and show it
+*/
+
+// Global npm libraries
+import React, { useState, useEffect } from 'react'
+import { useParams } from 'react-router-dom'
+import { Container, Row, Col, Tabs, Tab, Spinner } from 'react-bootstrap'
+import ReactMarkdown from 'react-markdown'
+
+function UserDataReview (props) {
+  const appData = props.appData
+  const [media, setMedia] = useState([])
+  const [markdown, setMarkdown] = useState('')
+  const [activeTab, setActiveTab] = useState('media')
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState(null)
+  // Get the id parameter from the URL
+  const { cid } = useParams()
+
+  useEffect(() => {
+    const loadMedia = async () => {
+      setLoading(true)
+      try {
+        const { json } = await appData.wallet.cid2json({ cid })
+        const userDataString = json.userData
+        if (userDataString) {
+          const userData = JSON.parse(userDataString)
+          setMedia(userData.media)
+          setMarkdown(userData.markdown)
+        }
+      } catch (error) {
+        setError(error.message)
+      }
+      setLoading(false)
+    }
+    loadMedia()
+  }, [cid, appData.wallet])
+
+  return (
+    <Container>
+      <Row>
+        <Col>
+          {error && <p className='text-danger'>{error}</p>}
+          {loading
+            ? (
+              <div className='text-center my-5'>
+                <Spinner animation='border' role='status' variant='primary'>
+                  <span className='visually-hidden'>Loading...</span>
+                </Spinner>
+              </div>
+              )
+            : (
+              <Tabs
+                activeKey={activeTab}
+                onSelect={(k) => setActiveTab(k)}
+                className='mb-4'
+              >
+                <Tab eventKey='media' title='Media'>
+                  {media && media.length > 0
+                    ? (
+                      <Row className='mt-3'>
+                        {media.map((item, index) => (
+                          <Col key={index} xs={12} sm={6} md={4} lg={4} className='mb-3'>
+                            <img
+                              src={item.url}
+                              alt={`Review media ${index + 1}`}
+                              style={{ width: '100%', height: '250px', objectFit: 'cover', borderRadius: '8px' }}
+                            />
+                          </Col>
+                        ))}
+                      </Row>
+                      )
+                    : (
+                      <p className='mt-3'>No media content available</p>
+                      )}
+                </Tab>
+                <Tab eventKey='markdown' title='Content'>
+                  {markdown
+                    ? (
+                      <div className='markdown-content mt-3'>
+                        <ReactMarkdown>{markdown}</ReactMarkdown>
+                      </div>
+                      )
+                    : (
+                      <p className='mt-3'>No content available</p>
+                      )}
+                </Tab>
+              </Tabs>
+              )}
+        </Col>
+      </Row>
+    </Container>
+  )
+}
+
+export default UserDataReview

src/components/nav-menu/index.js

@@ -114,6 +114,13 @@ function NavMenu (props) {
             >
               Nostr Profile
             </NavLink>
+            <NavLink
+              className={currentPath === '/global-feed' ? 'nav-link-active' : 'nav-link-inactive'}
+              to='/global-feed'
+              onClick={handleClickEvent}
+            >
+              Global Feed
+            </NavLink>
           </Nav>
         </Navbar.Collapse>
       </Navbar>

src/hooks/state.js

@@ -37,6 +37,9 @@ function useAppState () {
   const [hideSpinner, setHideSpinner] = useState(false)
   const [denyClose, setDenyClose] = useState(false)
 
+  // NFTs for sale stored data to improve performance
+  const [nftForSaleCacheData, setNftForSaleCacheData] = useState({})
+
   // The wallet state makes this a true progressive web app (PWA). As
   // balances, UTXOs, and tokens are retrieved, this state is updated.
   // properties are enumerated here for the purpose of documentation.
@@ -96,6 +99,16 @@ function useAppState () {
     }
   }
 
+  // Update NFT for sale tokens data
+  function updateNFTCachedData (tokenId, data) {
+    const allCacheData = nftForSaleCacheData // Get all cache data
+    const cacheData = allCacheData[tokenId] || {} // Get cache data for the tokenId
+
+    const newCacheData = Object.assign({}, cacheData, data) // Merge the new data with the cache data
+    allCacheData[tokenId] = newCacheData // Update the cache data
+    setNftForSaleCacheData(allCacheData) // Update the state
+  }
+
   return {
     serverUrl,
     setServerUrl,
@@ -131,7 +144,10 @@ function useAppState () {
     dexLib,
     setDexLib,
     nostr,
-    setNostr
+    setNostr,
+    nftForSaleCacheData,
+    setNftForSaleCacheData,
+    updateNFTCachedData
   }
 }