From 9b691e1ef3d2be80197c058b3952a88c5e13079f Mon Sep 17 00:00:00 2001
From: Oleksii Rytov <lexxukr@gmail.com>
Date: Mon, 11 Dec 2023 18:19:39 +0100
Subject: [PATCH 1/4] bump readme

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index fd47dbe..ab9407d 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The package can be installed by adding `flagpack` to your list of dependencies i
 ```elixir
 def deps do
   [
-    {:flagpack, "~> 0.1.0"}
+    {:flagpack, "~> 0.3.0"}
   ]
 end
 ```

From c9d0a6822e0dc17bd92c9ca2019b39982021ab02 Mon Sep 17 00:00:00 2001
From: Oleksii Rytov <lexxukr@gmail.com>
Date: Mon, 11 Dec 2023 18:28:21 +0100
Subject: [PATCH 2/4] tool-version, namespaced Helpers and idea to gitignore

---
 .gitignore          | 4 +++-
 .tool-versions      | 1 +
 assets/flagpack.exs | 2 +-
 lib/helpers.ex      | 2 +-
 4 files changed, 6 insertions(+), 3 deletions(-)
 create mode 100644 .tool-versions

diff --git a/.gitignore b/.gitignore
index 5514d69..8fe4575 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,4 +25,6 @@ flagpack-*.tar
 # Temporary files, for example, from tests.
 /tmp/
 
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+.idea/
diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..785b859
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1 @@
+elixir 1.14.1
diff --git a/assets/flagpack.exs b/assets/flagpack.exs
index c59a602..056cd76 100644
--- a/assets/flagpack.exs
+++ b/assets/flagpack.exs
@@ -25,7 +25,7 @@ defmodule Flagpack do
 
   <%= for %{func: func, alpha: alpha, svg: svg} <- @flags do %>
   @doc """
-  Renders the <%= Helpers.country_name_by_alpha(alpha) %> flag.
+  Renders the <%= Flagpack.Helpers.country_name_by_alpha(alpha) %> flag.
 
   ## Examples
       <Flagpack.<%= func %> />
diff --git a/lib/helpers.ex b/lib/helpers.ex
index 7a24f43..265de31 100644
--- a/lib/helpers.ex
+++ b/lib/helpers.ex
@@ -1,4 +1,4 @@
-defmodule Helpers do
+defmodule Flagpack.Helpers do
   @country_codes [
     %{country_name: "Andorra", alpha2: "AD", alpha3: "AND", numeric: "020"},
     %{

From 4d173220923a2a2c41cc6d6796b01683dcfcece5 Mon Sep 17 00:00:00 2001
From: Oleksii Rytov <lexxukr@gmail.com>
Date: Mon, 11 Dec 2023 18:37:13 +0100
Subject: [PATCH 3/4] Helers.country_alpha3_by_alpha2/1

---
 lib/helpers.ex | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/helpers.ex b/lib/helpers.ex
index 265de31..de4a353 100644
--- a/lib/helpers.ex
+++ b/lib/helpers.ex
@@ -517,6 +517,13 @@ defmodule Flagpack.Helpers do
     |> Map.get(:country_name)
   end
 
+  def country_alpha3_by_alpha2(alpha2) do
+    alpha2 = String.upcase(alpha2)
+
+    Enum.find(@country_codes, &(get_alpha2(&1) == alpha2))
+    |> Map.get(:alpha3)
+  end
+
   defp get_alpha2(country), do: Map.get(country, :alpha2, "")
   defp get_alpha3(country), do: Map.get(country, :alpha3, "")
 end

From d41af0b940fced0ad0d2c726c34c3527233704f0 Mon Sep 17 00:00:00 2001
From: Oleksii Rytov <lexxukr@gmail.com>
Date: Mon, 11 Dec 2023 18:52:42 +0100
Subject: [PATCH 4/4] handle cases when nothing was found

---
 lib/helpers.ex | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/helpers.ex b/lib/helpers.ex
index de4a353..5c67dd1 100644
--- a/lib/helpers.ex
+++ b/lib/helpers.ex
@@ -520,8 +520,10 @@ defmodule Flagpack.Helpers do
   def country_alpha3_by_alpha2(alpha2) do
     alpha2 = String.upcase(alpha2)
 
-    Enum.find(@country_codes, &(get_alpha2(&1) == alpha2))
-    |> Map.get(:alpha3)
+    case Enum.find(@country_codes, &(get_alpha2(&1) == alpha2)) do
+      nil -> nil
+      info = %{} -> Map.get(info, :alpha3)
+    end
   end
 
   defp get_alpha2(country), do: Map.get(country, :alpha2, "")