thread update/insert changeset fixed - auth permissions done

lib/myapp/auth/token.ex

@@ -0,0 +1,33 @@
+defmodule MyApp.Guardian.Auth.Token do
+  alias MyApp.Guardian
+  
+  # ~1 year
+  defp tokenTTL(), do: {52, :weeks}
+
+  @spec add_token_and_map_claims(map | {atom, any}) :: {:ok, map} | {:error, String.t}
+  def add_token_and_map_claims(user) when is_map(user) do
+
+    claims = user
+    |> Map.take([:id, :battletag, :battle_net_id, :access_token]) # take values from user object to map to claims
+    |> Guardian.add_permissions(get_permissions(user))
+
+    case Guardian.encode_and_sign(user, claims, ttl: tokenTTL()) do
+      {:ok, token, _claims} -> {:ok, Map.merge(user, %{token: token})}
+      {:error, error} -> {:error, error}
+    end
+  end
+
+  def add_token_and_map_claims({:ok, user}), do: add_token_and_map_claims(user)
+  def add_token_and_map_claims({:error, error}), do: {:error, error}
+
+  # return permissions base on field in database
+  defp get_permissions(user) do
+    case Map.get(user, :permissions) do
+      "user" -> %{user: [:read, :write]}
+      "mod" -> %{mod: [:read, :write]}
+      "admin" -> %{admin: [:read, :write]}
+      nil -> %{user: [:read, :write]}
+    end
+  end
+
+end