From 9ee32aa47ec77f6e3069543834cbc65803d8d059 Mon Sep 17 00:00:00 2001
From: Tom Haines <tom@tomhaines.xyz>
Date: Wed, 26 Aug 2020 14:25:20 +0100
Subject: [PATCH 1/4] #21: Generate JWT locally with Mix task

---
 lib/mix/tasks/smart_home/gen_token.ex | 12 ++++++++++++
 lib/smart_home_auth.ex                | 14 ++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 lib/mix/tasks/smart_home/gen_token.ex

diff --git a/lib/mix/tasks/smart_home/gen_token.ex b/lib/mix/tasks/smart_home/gen_token.ex
new file mode 100644
index 0000000..b5fc239
--- /dev/null
+++ b/lib/mix/tasks/smart_home/gen_token.ex
@@ -0,0 +1,12 @@
+defmodule Mix.Tasks.SmartHome.GenToken do
+  use Mix.Task
+
+  @shortdoc "Generate a JWT token for use with local API development"
+  def run(_) do
+    IO.puts("Generating JWT Token...")
+    jwt = SmartHomeAuth.gen_auth_token()
+
+    IO.puts("\n\n")
+    IO.puts(jwt)
+  end
+end
diff --git a/lib/smart_home_auth.ex b/lib/smart_home_auth.ex
index b8da1dc..ff3f6bf 100644
--- a/lib/smart_home_auth.ex
+++ b/lib/smart_home_auth.ex
@@ -7,4 +7,18 @@ defmodule SmartHomeAuth do
   if it comes from the database, an external API or others.
 
   """
+
+  @doc """
+  Generate a local-use authentication token for API development.
+  """
+  @spec gen_auth_token :: binary
+  def gen_auth_token do
+    AuthPlug.Token.generate_jwt!(
+      %{
+        "id" => 1,
+        "email" => "test@example.com",
+        "auth_provider" => "local-dev",
+        "given_name" => "Dev Superuser"
+      })
+  end
 end

From 84c5263e8c6b6523d5c30a13e1b0252e62d0b86f Mon Sep 17 00:00:00 2001
From: Tom Haines <tom@tomhaines.xyz>
Date: Wed, 26 Aug 2020 15:01:04 +0100
Subject: [PATCH 2/4] #21: Add testing for new func & task

---
 test/mix/tasks/smart_home_test.exs   | 17 +++++++++++++++++
 test/smart_home_auth/helper_test.exs | 11 +++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 test/mix/tasks/smart_home_test.exs
 create mode 100644 test/smart_home_auth/helper_test.exs

diff --git a/test/mix/tasks/smart_home_test.exs b/test/mix/tasks/smart_home_test.exs
new file mode 100644
index 0000000..b4e42c4
--- /dev/null
+++ b/test/mix/tasks/smart_home_test.exs
@@ -0,0 +1,17 @@
+defmodule Mix.Tasks.SmartHomeTest do
+  use ExUnit.Case
+  import ExUnit.CaptureIO
+
+  require Logger
+
+  @jwt_pattern ~r/[A-Za-z0-9-_=]+\.[A-Za-z0-9-_=]+\.?[A-Za-z0-9-_.+\/=]*$/m
+
+  test "Mix task returns a valid JWT" do
+    out = capture_io(fn -> Mix.Tasks.SmartHome.GenToken.run([]) end)
+
+    jwt = Regex.run(@jwt_pattern, out) |> List.first()
+
+    decoded = AuthPlug.Token.verify_jwt!(jwt)
+    assert %{"id" => 1} = decoded
+  end
+end
diff --git a/test/smart_home_auth/helper_test.exs b/test/smart_home_auth/helper_test.exs
new file mode 100644
index 0000000..283b3bd
--- /dev/null
+++ b/test/smart_home_auth/helper_test.exs
@@ -0,0 +1,11 @@
+defmodule SmartHomeAuth.HelperTest do
+  use ExUnit.Case, async: true
+
+  test "gen_auth_token generates a correct token" do
+    token = SmartHomeAuth.gen_auth_token()
+
+    decoded = AuthPlug.Token.verify_jwt!(token)
+
+    assert %{"id" => 1} = decoded
+  end
+end

From 806aad86dfaccfe95dfaf73a7489a66530da68dc Mon Sep 17 00:00:00 2001
From: Tom Haines <tom@tomhaines.xyz>
Date: Wed, 26 Aug 2020 15:03:17 +0100
Subject: [PATCH 3/4] #21: Remove unused require

---
 test/mix/tasks/smart_home_test.exs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/test/mix/tasks/smart_home_test.exs b/test/mix/tasks/smart_home_test.exs
index b4e42c4..b2133e1 100644
--- a/test/mix/tasks/smart_home_test.exs
+++ b/test/mix/tasks/smart_home_test.exs
@@ -2,8 +2,6 @@ defmodule Mix.Tasks.SmartHomeTest do
   use ExUnit.Case
   import ExUnit.CaptureIO
 
-  require Logger
-
   @jwt_pattern ~r/[A-Za-z0-9-_=]+\.[A-Za-z0-9-_=]+\.?[A-Za-z0-9-_.+\/=]*$/m
 
   test "Mix task returns a valid JWT" do

From b9388f35b29abad864b499d63c0815ab3aa6d407 Mon Sep 17 00:00:00 2001
From: Nelson <194400+nelsonic@users.noreply.github.com>
Date: Wed, 26 Aug 2020 15:34:06 +0100
Subject: [PATCH 4/4] fix key "given_name" to "givenName" (sorry, I know)

---
 lib/smart_home_auth.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/smart_home_auth.ex b/lib/smart_home_auth.ex
index ff3f6bf..0221b4f 100644
--- a/lib/smart_home_auth.ex
+++ b/lib/smart_home_auth.ex
@@ -18,7 +18,7 @@ defmodule SmartHomeAuth do
         "id" => 1,
         "email" => "test@example.com",
         "auth_provider" => "local-dev",
-        "given_name" => "Dev Superuser"
+        "givenName" => "Dev Superuser"
       })
   end
 end