From 303a474437309a568f29f4d66d6c9cf1423e54d2 Mon Sep 17 00:00:00 2001
From: Sloane <sloane@perrault.email>
Date: Thu, 6 Jul 2023 14:23:58 -0400
Subject: [PATCH] Use homerolled UUID module (#9)

* remove uniq, use homerolled uuid module

* update changelog
---
 CHANGELOG.md        |  3 ++-
 lib/type_id.ex      |  7 ++++---
 lib/type_id/uuid.ex | 32 +++++++++++++++++++++++++++++++-
 mix.exs             |  1 -
 mix.lock            |  1 -
 5 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f6ec4f6..0823cd2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
 # Changelog
 
-## 0.2.1
+## main
 
 - Include CHANGELOG in docs
+- Remove dependency on `Uniq`
 
 ## 0.2.0
 
diff --git a/lib/type_id.ex b/lib/type_id.ex
index 36ff22c..d6df103 100644
--- a/lib/type_id.ex
+++ b/lib/type_id.ex
@@ -2,6 +2,7 @@ defmodule TypeID do
   @moduledoc File.cwd!() |> Path.join("README.md") |> File.read!()
 
   alias TypeID.Base32
+  alias TypeID.UUID
 
   @enforce_keys [:prefix, :suffix]
   defstruct @enforce_keys
@@ -26,7 +27,7 @@ defmodule TypeID do
   @spec new(prefix :: String.t()) :: t()
   def new(prefix) do
     suffix =
-      Uniq.UUID.uuid7(:raw)
+      UUID.uuid7()
       |> Base32.encode()
 
     %__MODULE__{prefix: prefix, suffix: suffix}
@@ -110,7 +111,7 @@ defmodule TypeID do
   def uuid(%__MODULE__{} = tid) do
     tid
     |> uuid_bytes()
-    |> Uniq.UUID.to_string(:default)
+    |> UUID.binary_to_string()
   end
 
   @doc """
@@ -180,7 +181,7 @@ defmodule TypeID do
   """
   @spec from_uuid!(prefix :: String.t(), uuid :: String.t()) :: t() | no_return()
   def from_uuid!(prefix, uuid) do
-    uuid_bytes = Uniq.UUID.string_to_binary!(uuid)
+    uuid_bytes = UUID.string_to_binary(uuid)
     from_uuid_bytes!(prefix, uuid_bytes)
   end
 
diff --git a/lib/type_id/uuid.ex b/lib/type_id/uuid.ex
index accf008..56bc23d 100644
--- a/lib/type_id/uuid.ex
+++ b/lib/type_id/uuid.ex
@@ -1,4 +1,6 @@
 defmodule TypeID.UUID do
+  @moduledoc false
+
   def uuid7(opts \\ []) do
     time = Keyword.get_lazy(opts, :time, fn -> System.system_time(:millisecond) end)
     <<rand_a::12, _::6, rand_b::62>> = :crypto.strong_rand_bytes(10)
@@ -6,7 +8,7 @@ defmodule TypeID.UUID do
     <<time::big-unsigned-integer-size(48), 7::4, rand_a::12, 2::2, rand_b::62>>
   end
 
-  def to_string(
+  def binary_to_string(
         <<a1::4, a2::4, a3::4, a4::4, a5::4, a6::4, a7::4, a8::4, b1::4, b2::4, b3::4, b4::4,
           c1::4, c2::4, c3::4, c4::4, d1::4, d2::4, d3::4, d4::4, e1::4, e2::4, e3::4, e4::4,
           e5::4, e6::4, e7::4, e8::4, e9::4, e10::4, e11::4, e12::4>>
@@ -16,6 +18,16 @@ defmodule TypeID.UUID do
       e(e5), e(e6), e(e7), e(e8), e(e9), e(e10), e(e11), e(e12)>>
   end
 
+  def string_to_binary(
+        <<a1, a2, a3, a4, a5, a6, a7, a8, ?-, b1, b2, b3, b4, ?-, c1, c2, c3, c4, ?-, d1, d2, d3,
+          d4, ?-, e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11, e12>>
+      ) do
+    <<d(a1)::4, d(a2)::4, d(a3)::4, d(a4)::4, d(a5)::4, d(a6)::4, d(a7)::4, d(a8)::4, d(b1)::4,
+      d(b2)::4, d(b3)::4, d(b4)::4, d(c1)::4, d(c2)::4, d(c3)::4, d(c4)::4, d(d1)::4, d(d2)::4,
+      d(d3)::4, d(d4)::4, d(e1)::4, d(e2)::4, d(e3)::4, d(e4)::4, d(e5)::4, d(e6)::4, d(e7)::4,
+      d(e8)::4, d(e9)::4, d(e10)::4, d(e11)::4, d(e12)::4>>
+  end
+
   @compile {:inline, [e: 1]}
   defp e(0), do: ?0
   defp e(1), do: ?1
@@ -33,4 +45,22 @@ defmodule TypeID.UUID do
   defp e(13), do: ?d
   defp e(14), do: ?e
   defp e(15), do: ?f
+
+  @compile {:inline, [d: 1]}
+  defp d(?0), do: 0
+  defp d(?1), do: 1
+  defp d(?2), do: 2
+  defp d(?3), do: 3
+  defp d(?4), do: 4
+  defp d(?5), do: 5
+  defp d(?6), do: 6
+  defp d(?7), do: 7
+  defp d(?8), do: 8
+  defp d(?9), do: 9
+  defp d(?a), do: 10
+  defp d(?b), do: 11
+  defp d(?c), do: 12
+  defp d(?d), do: 13
+  defp d(?e), do: 14
+  defp d(?f), do: 15
 end
diff --git a/mix.exs b/mix.exs
index 7941313..dcb1bfd 100644
--- a/mix.exs
+++ b/mix.exs
@@ -42,7 +42,6 @@ defmodule TypeID.MixProject do
 
   defp deps do
     [
-      {:uniq, "~> 0.5.4"},
       {:ex_doc, "~> 0.27", only: :dev, runtime: false},
       {:yaml_elixir, "~> 2.9", only: [:dev, :test], runtime: false}
     ]
diff --git a/mix.lock b/mix.lock
index cf556f8..9e8772c 100644
--- a/mix.lock
+++ b/mix.lock
@@ -5,7 +5,6 @@
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.2", "ad87296a092a46e03b7e9b0be7631ddcf64c790fa68a9ef5323b6cbb36affc72", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f3f5a1ca93ce6e092d92b6d9c049bcda58a3b617a8d888f8e7231c85630e8108"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.3.1", "2c54013ecf170e249e9291ed0a62e5832f70a476c61da16f6aac6dca0189f2af", [:mix], [], "hexpm", "2682e3c0b2eb58d90c6375fc0cc30bc7be06f365bf72608804fb9cffa5e1b167"},
-  "uniq": {:hex, :uniq, "0.5.4", "0602d0c75682f14863c1edea48920bd3d278b29ff7801d56e040e5f9f51ae0e2", [:mix], [{:ecto, "~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}], "hexpm", "856ec690d713f97373a3746afada340143c7e37a6488fca5afa720bfb08f0fe5"},
   "yamerl": {:hex, :yamerl, "0.10.0", "4ff81fee2f1f6a46f1700c0d880b24d193ddb74bd14ef42cb0bcf46e81ef2f8e", [:rebar3], [], "hexpm", "346adb2963f1051dc837a2364e4acf6eb7d80097c0f53cbdc3046ec8ec4b4e6e"},
   "yaml_elixir": {:hex, :yaml_elixir, "2.9.0", "9a256da867b37b8d2c1ffd5d9de373a4fda77a32a45b452f1708508ba7bbcb53", [:mix], [{:yamerl, "~> 0.10", [hex: :yamerl, repo: "hexpm", optional: false]}], "hexpm", "0cb0e7d4c56f5e99a6253ed1a670ed0e39c13fc45a6da054033928607ac08dfc"},
 }