From 71b7116aab7fe278e8b41d2b12584272a03feecf Mon Sep 17 00:00:00 2001
From: Bassam <84336050+CryptoKnightIOG@users.noreply.github.com>
Date: Wed, 28 Sep 2022 10:15:44 -0400
Subject: [PATCH] [ATL-1342] feat(pollux): initialise VC JWT (#42)

---
 pollux/vc-jwt/.gitignore                      | 32 +++++++++++++++++++
 pollux/vc-jwt/.scalafmt.conf                  |  4 +++
 pollux/vc-jwt/README.md                       |  8 +++++
 pollux/vc-jwt/build.sbt                       | 12 +++++++
 pollux/vc-jwt/project/Dependencies.scala      | 23 +++++++++++++
 pollux/vc-jwt/project/build.properties        |  1 +
 .../io/iohk/atala/pollux/vc/jwt/Main.scala    | 24 ++++++++++++++
 .../io/iohk/atala/pollux/vc/jwt/MySuite.scala |  9 ++++++
 8 files changed, 113 insertions(+)
 create mode 100644 pollux/vc-jwt/.gitignore
 create mode 100644 pollux/vc-jwt/.scalafmt.conf
 create mode 100644 pollux/vc-jwt/README.md
 create mode 100644 pollux/vc-jwt/build.sbt
 create mode 100644 pollux/vc-jwt/project/Dependencies.scala
 create mode 100644 pollux/vc-jwt/project/build.properties
 create mode 100644 pollux/vc-jwt/src/main/scala/io/iohk/atala/pollux/vc/jwt/Main.scala
 create mode 100644 pollux/vc-jwt/src/test/scala/io/iohk/atala/pollux/vc/jwt/MySuite.scala

diff --git a/pollux/vc-jwt/.gitignore b/pollux/vc-jwt/.gitignore
new file mode 100644
index 0000000000..9e79245eef
--- /dev/null
+++ b/pollux/vc-jwt/.gitignore
@@ -0,0 +1,32 @@
+# macOS
+.DS_Store
+
+# sbt specific
+dist/*
+target/
+lib_managed/
+src_managed/
+project/boot/
+project/plugins/project/
+project/local-plugins.sbt
+.history
+.ensime
+.ensime_cache/
+.sbt-scripted/
+local.sbt
+
+# Bloop
+.bsp
+
+# VS Code
+.vscode/
+
+# Metals
+.bloop/
+.metals/
+metals.sbt
+
+# IDEA
+.idea
+.idea_modules
+/.worksheet/
diff --git a/pollux/vc-jwt/.scalafmt.conf b/pollux/vc-jwt/.scalafmt.conf
new file mode 100644
index 0000000000..688e6cbf01
--- /dev/null
+++ b/pollux/vc-jwt/.scalafmt.conf
@@ -0,0 +1,4 @@
+version = 3.5.8
+runner.dialect = scala3
+
+maxColumn = 120
\ No newline at end of file
diff --git a/pollux/vc-jwt/README.md b/pollux/vc-jwt/README.md
new file mode 100644
index 0000000000..102c5cad5f
--- /dev/null
+++ b/pollux/vc-jwt/README.md
@@ -0,0 +1,8 @@
+## sbt project compiled with Scala 3
+
+### Usage
+
+This is a normal sbt project. You can compile code with `sbt compile`, run it with `sbt run`, and `sbt console` will start a Scala 3 REPL.
+
+For more information on the sbt-dotty plugin, see the
+[scala3-example-project](https://github.com/scala/scala3-example-project/blob/main/README.md).
diff --git a/pollux/vc-jwt/build.sbt b/pollux/vc-jwt/build.sbt
new file mode 100644
index 0000000000..71e6f4b135
--- /dev/null
+++ b/pollux/vc-jwt/build.sbt
@@ -0,0 +1,12 @@
+import Dependencies._
+
+ThisBuild / version := "0.1.0-SNAPSHOT"
+ThisBuild / scalaVersion := "3.1.3"
+ThisBuild / organization := "io.iohk.atala"
+
+lazy val root = project
+  .in(file("."))
+  .settings(
+    name := "pollux-vc-jwt",
+    libraryDependencies ++= polluxVcJwtDependencies
+  )
diff --git a/pollux/vc-jwt/project/Dependencies.scala b/pollux/vc-jwt/project/Dependencies.scala
new file mode 100644
index 0000000000..f6061d9e8f
--- /dev/null
+++ b/pollux/vc-jwt/project/Dependencies.scala
@@ -0,0 +1,23 @@
+import sbt._
+
+object Dependencies {
+  object Versions {
+    val circeVersion = "0.14.3"
+    val jwtCirceVersion = "9.1.1"
+  }
+
+  private lazy val coreJwtCirce = "io.circe" %% "circe-core" % Versions.circeVersion
+  private lazy val genericJwtCirce = "io.circe" %% "circe-generic" % Versions.circeVersion
+  private lazy val parserJwtCirce = "io.circe" %% "circe-parser" % Versions.circeVersion
+
+  private lazy val jwtCirce = "com.github.jwt-scala" %% "jwt-circe" % Versions.jwtCirceVersion
+
+  private lazy val test = "org.scalameta" %% "munit" % "0.7.29" % Test
+
+  // Dependency Modules
+  private lazy val circeDependencies: Seq[ModuleID] = Seq(coreJwtCirce, genericJwtCirce, parserJwtCirce)
+  private lazy val baseDependencies: Seq[ModuleID] = circeDependencies :+ jwtCirce :+ test
+
+  // Project Dependencies
+  lazy val polluxVcJwtDependencies: Seq[ModuleID] = baseDependencies
+}
diff --git a/pollux/vc-jwt/project/build.properties b/pollux/vc-jwt/project/build.properties
new file mode 100644
index 0000000000..22af2628c4
--- /dev/null
+++ b/pollux/vc-jwt/project/build.properties
@@ -0,0 +1 @@
+sbt.version=1.7.1
diff --git a/pollux/vc-jwt/src/main/scala/io/iohk/atala/pollux/vc/jwt/Main.scala b/pollux/vc-jwt/src/main/scala/io/iohk/atala/pollux/vc/jwt/Main.scala
new file mode 100644
index 0000000000..58f58af341
--- /dev/null
+++ b/pollux/vc-jwt/src/main/scala/io/iohk/atala/pollux/vc/jwt/Main.scala
@@ -0,0 +1,24 @@
+package io.iohk.atala.pollux.vc.jwt
+import io.circe.*
+import pdi.jwt.JwtClaim
+import pdi.jwt.{JwtAlgorithm, JwtCirce}
+
+import java.security.*
+import java.security.spec.*
+import java.time.Instant
+
+@main def jwtDemo(): Unit =
+  val keyGen = KeyPairGenerator.getInstance("EC")
+  val ecSpec = ECGenParameterSpec("secp256r1")
+  keyGen.initialize(ecSpec, SecureRandom())
+  val keyPair = keyGen.generateKeyPair()
+  val privateKey = keyPair.getPrivate
+  val publicKey = keyPair.getPublic
+
+  val Right(claimJson) = jawn.parse(s"""{"expires":${Instant.now.getEpochSecond}}""")
+
+  val jwt = JwtCirce.encode(claimJson, privateKey, JwtAlgorithm.ES256)
+
+  println(jwt)
+
+  println(s"Is Valid: ${JwtCirce.isValid(jwt, publicKey)}")
diff --git a/pollux/vc-jwt/src/test/scala/io/iohk/atala/pollux/vc/jwt/MySuite.scala b/pollux/vc-jwt/src/test/scala/io/iohk/atala/pollux/vc/jwt/MySuite.scala
new file mode 100644
index 0000000000..8cc4df2a8f
--- /dev/null
+++ b/pollux/vc-jwt/src/test/scala/io/iohk/atala/pollux/vc/jwt/MySuite.scala
@@ -0,0 +1,9 @@
+package io.iohk.atala.pollux.vc.jwt
+
+class MySuite extends munit.FunSuite {
+  test("example test that succeeds") {
+    val obtained = 42
+    val expected = 42
+    assertEquals(obtained, expected)
+  }
+}