From 66508fd5aed11b955fc14fe7ba1889cd3b2191a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hernando=20Guzm=C3=A1n?= <hernando.guzman93@gmail.com>
Date: Fri, 21 May 2021 18:26:14 -0300
Subject: [PATCH] Add sourcecred functions and db fetch functions

---
 src/utils.ts | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/utils.ts

diff --git a/src/utils.ts b/src/utils.ts
new file mode 100644
index 0000000..c9e1a04
--- /dev/null
+++ b/src/utils.ts
@@ -0,0 +1,72 @@
+import { sourcecred } from 'sourcecred'
+import { config } from 'dotenv'
+
+import User, { IUser } from './models/User'
+import LedgerUpdate from './models/LedgerUpdate'
+
+config()
+
+export const log = (message) => console.log(`${Date.now()}: ${message}`)
+
+const fetchLastLedgerUpdate = async (): Promise<number> => {
+  const lastLedgerUpdateEntry = await LedgerUpdate.find({}).sort('-modifiedAt').limit(1)
+  
+  return lastLedgerUpdateEntry.length ? lastLedgerUpdateEntry[0].modifiedAt : 0
+}
+
+export const fetchModifiedUsers = async (): Promise<IUser[]> => {
+  const lastLedgerUpdate = await fetchLastLedgerUpdate()
+  const foundUsers = await User.find({
+     modifiedAt: { $gte: lastLedgerUpdate }
+  })
+
+  return foundUsers
+}
+
+const storage = new sourcecred.ledger.storage.GithubStorage({
+  apiToken: process.env.GITHUB_API_TOKEN,
+  repo: process.env.REPO,
+  branch: process.env.BRANCH
+})
+
+export const manager = new sourcecred.ledger.manager.LedgerManager({ storage })
+
+export const loadLedger = async () => {
+  const ledger = await manager.reloadLedger()
+
+  return ledger
+}
+
+export const createDiscourseIdentity = (discourse, ledger) => {
+  const newDiscourseIdentityId = ledger.createIdentity(
+    'USER',
+    ledger.nameAvailable(discourse) ? discourse : `${discourse}-discourse`
+  )
+
+  ledger.addAlias(
+    newDiscourseIdentityId,
+    {
+      description: `discourse/[@${discourse}](https://forum.1hive.org/u/${discourse}/)`,
+      address: `N\u0000sourcecred\u0000discourse\u0000user\u0000https://forum.1hive.org\u0000${discourse}\u0000`
+    }
+  )
+
+  return newDiscourseIdentityId
+}
+
+export const createGithubIdentity = (github, ledger) => {
+  const newGithubIdentityId = ledger.createIdentity(
+    'USER',
+    ledger.nameAvailable(github) ? github : `${github}-github`
+  )
+
+  ledger.addAlias(
+    newGithubIdentityId,
+    {
+      description: `github/[@${github}](https://github.com/${github})`,
+      address: `N\u0000sourcecred\u0000github\u0000USERLIKE\u0000USER\u0000${github}\u0000`
+    }
+  )
+
+  return newGithubIdentityId
+}