Script for welcome series

scripts/welcome.js

@@ -0,0 +1,108 @@
+#!/usr/bin/env node
+
+const SN_API_URL = process.env.SN_API_URL ?? 'http://localhost:3000'
+// this is the item id of the last bio that was included in the previous post of the series
+// TODO: make this configurable
+const FETCH_AFTER = 838433
+
+async function gql (query, variables = {}) {
+  const response = await fetch(`${SN_API_URL}/api/graphql`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ query, variables })
+  })
+
+  if (response.status !== 200) {
+    throw new Error(`request failed: ${response.statusText}`)
+  }
+
+  const json = await response.json()
+  if (json.errors) {
+    throw new Error(json.errors[0].message)
+  }
+
+  return json.data
+}
+
+function fetchRecentBios () {
+  // fetch all recent bios. we assume here there won't be more than 21
+  // since the last bio we already included in a post as defined by FETCH_AFTER.
+  return gql(
+    `query NewBios {
+      items(sort: "recent", type: "bios", limit: 21) {
+        items {
+          id
+          title
+          createdAt
+          user {
+            name
+            since
+            nitems
+            optional {
+              stacked
+            }
+          }
+        }
+      }
+    }`
+  )
+}
+
+function filterBios (bios) {
+  const newBios = bios.filter(b => b.id > FETCH_AFTER)
+  if (newBios.length === bios.length) {
+    throw new Error('last bio not found. increase limit')
+  }
+  return newBios
+}
+
+async function printTable (bios) {
+  console.log('| nym | bio (stacking since) | items | sats stacked |')
+  console.log('| --- | -------------------- | ----- | ------------ |')
+
+  for (const bio of bios) {
+    const { user } = bio
+
+    const bioCreatedAt = formatDate(bio.createdAt)
+    let col2 = `[${formatDate(bio.createdAt)}](${itemLink(bio.id)})`
+    if (Number(bio.id) !== user.since) {
+      const since = await fetchItem(user.since)
+      const sinceCreatedAt = formatDate(since.createdAt)
+      // stacking since might not be the same item as the bio
+      // but it can still have been created on the same day
+      if (bioCreatedAt !== sinceCreatedAt) {
+        col2 += ` ([${formatDate(since.createdAt)}](${itemLink(since.id)}))`
+      }
+    }
+    console.log(`| @${user.name} | ${col2} | ${user.nitems} | ${user.optional.stacked || '???'} |`)
+  }
+
+  console.log(`${bios.length} rows`)
+
+  return bios
+}
+
+function formatDate (date) {
+  return new Date(date).toLocaleDateString('en-US', { month: 'short', day: 'numeric' })
+}
+
+function itemLink (id) {
+  return `https://stacker.news/items/${id}`
+}
+
+async function fetchItem (id) {
+  const data = await gql(`
+    query Item($id: ID!) {
+      item(id: $id) {
+        id
+        createdAt
+      }
+    }`, { id }
+  )
+  return data.item
+}
+
+fetchRecentBios()
+  .then(data => filterBios(data.items.items))
+  .then(printTable)
+  .catch(console.error)