[WIP] Patchql

about/obs.js

@@ -0,0 +1,60 @@
+const { Value } = require('mutant')
+const nest = require('depnest')
+const { isFeed } = require('ssb-ref')
+const gql = require('graphql-tag').default
+// var colorHash = new (require('color-hash'))()
+// var fallbackImageUrl = 'data:image/gif;base64,R0lGODlhAQABAPAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=='
+
+exports.needs = nest({
+  'about.sync.shortFeedId': 'first',
+  'blob.sync.url': 'first',
+  'graphql.async.query': 'first'
+})
+
+exports.gives = nest({
+  'about.obs.name': true,
+  'about.obs.imageUrl': true
+})
+
+const nameQuery = gql`
+  query author($feedId: String!) {
+    author(id: $feedId) {
+      name
+    }
+  }
+`
+
+exports.create = function (api) {
+  var nameCache = {}
+
+  return nest({
+    'about.obs.name': name,
+    'about.obs.imageUrl': imageUrl
+  })
+
+  // TODO !!!
+  // add something which watches new about messages coming in and updates any feedId's referenced
+
+  function name (id) {
+    if (!isFeed(id)) throw new Error('about.obs.name requires a feedId, got', id)
+
+    if (nameCache[id]) return nameCache[id]
+
+    nameCache[id] = Value(api.about.sync.shortFeedId(id))
+    fetchCurrentName(id, (err, res) => {
+      if (err) return console.error(JSON.stringify(err, null, 2))
+
+      nameCache[id].set(res.data.author.name)
+    })
+
+    return nameCache[id]
+  }
+
+  function imageUrl () {
+    // returns nothing, so will fall back to original
+  }
+
+  function fetchCurrentName (feedId, cb) {
+    api.graphql.async.query({ query: nameQuery, variables: { feedId } }, cb)
+  }
+}

app/styles/css/open-dyslexic.js

@@ -0,0 +1,11 @@
+const nest = require('depnest')
+const requireStyle = require('require-style')
+const { assign } = Object
+
+exports.gives = nest('styles.css')
+
+exports.create = function (api) {
+  return nest('styles.css', (sofar = {}) => {
+    return assign(sofar, { openDyslexic: requireStyle('open-dyslexic') })
+  })
+}

app/sync/initialise/patchql.js

@@ -0,0 +1,79 @@
+const pull = require('pull-stream')
+const nest = require('depnest')
+const { ApolloClient } = require('apollo-client')
+const { InMemoryCache } = require('apollo-cache-inmemory')
+const { createHttpLink } = require('apollo-link-http')
+const gql = require('graphql-tag').default
+// NOTE also depends on graphql module
+
+exports.needs = nest({
+  'sbot.async.run': 'first'
+})
+exports.gives = nest({
+  'app.sync.initialise': true,
+  'graphql.async.query': true
+})
+
+const mutation = gql`
+  mutation process($chunkSize: Int) {
+    process(chunkSize: $chunkSize) {
+      chunkSize,
+      latestSequence
+    }
+  }
+`
+exports.create = function (api) {
+  var graphql
+
+  return nest({
+    'app.sync.initialise': startPatchql,
+    'graphql.async.query': graphQuery
+  })
+
+  function startPatchql () {
+    if (process.env.PATCHQL === 'false') return
+
+    graphql = GraphqlClient()
+
+    var latestSequence
+    var nextSequence
+
+    api.sbot.async.run(server => {
+      server.jsbotPatchql.start({}, () => {
+        indexLoop()
+      })
+    })
+
+    function indexLoop () {
+      graphql.mutate({ mutation, variables: { chunkSize: 10e3 } })
+        .then(res => {
+          nextSequence = res.data.process.latestSequence
+          if (latestSequence === nextSequence) setTimeout(indexLoop, 5e3)
+          else {
+            latestSequence = nextSequence
+            console.log('patchql latestSequence:', latestSequence)
+            indexLoop()
+          }
+        })
+        .catch(err => {
+          console.error(err)
+          return setTimeout(indexLoop, 2e3)
+        })
+    }
+  }
+
+  function graphQuery ({ query, variables }, cb) {
+    if (!graphql) return setTimeout(() => graphQuery({ query, variables }, cb), 1e3)
+
+    graphql.query({ query, variables })
+      .then(res => cb(null, res))
+      .catch(err => cb(err))
+  }
+
+  function GraphqlClient () {
+    return new ApolloClient({
+      link: createHttpLink({ uri: 'http://localhost:8080/graphql' }), // set by jsbot-patchql
+      cache: new InMemoryCache()
+    })
+  }
+}

index.js

@@ -28,7 +28,9 @@ const plugins = [
   'ssb-search',
   'ssb-suggest',
   'ssb-tangle',
-  'ssb-unread'
+  'ssb-unread',
+
+  'jsbot-patchql'
 ]
 
 ahoy(