feat: create db table and store operator id

migrations/1623413776161-create-operator-ids.js

@@ -0,0 +1,55 @@
+var db = require('./db')
+const pify = require('pify')
+const fs = pify(require('fs'))
+const hkdf = require('futoin-hkdf')
+
+const state = require('../lib/middlewares/state')
+const mnemonicHelpers = require('../lib/mnemonic-helpers')
+const options = require('../lib/options')
+
+function computeOperatorId (masterSeed) {
+  return hkdf(masterSeed, 16, { salt: 'lamassu-server-salt', info: 'operator-id' }).toString('hex')
+}
+
+function getMnemonic () {
+  if (state.mnemonic) return Promise.resolve(state.mnemonic)
+  return fs.readFile(options.mnemonicPath, 'utf8').then(mnemonic => {
+    state.mnemonic = mnemonic
+    return mnemonic
+  })
+}
+
+function generateOperatorId () {
+  return getMnemonic().then(mnemonic => {
+    return computeOperatorId(mnemonicHelpers.toEntropyBuffer(mnemonic))
+  }).then(id => {
+    return id
+  }).catch(e => {
+    console.error('Error while computing operator id\n' + e)
+    throw e
+  })
+}
+
+exports.up = function (next) {
+  const sql =
+    [
+      `CREATE TABLE operator_ids (
+        id TEXT PRIMARY KEY,
+        description TEXT NOT NULL)`
+    ]
+  generateOperatorId()
+    .then(operatorId => {
+      const sql2 = `INSERT INTO operator_ids (id, description) VALUES ('${operatorId}','mnemonic' )`
+      sql.push(sql2)
+      db.multi(sql, next)
+        .then(() => next())
+    })
+    .catch(e => {
+      db.multi(sql, next)
+        .then(() => next())
+    })
+}
+
+exports.down = function (next) {
+  next()
+}