From 9b4b4aa44c8f68432a583f25b4478679499b415e Mon Sep 17 00:00:00 2001
From: sloane <1699281+sloanelybutsurely@users.noreply.github.com>
Date: Sat, 17 Feb 2024 08:09:30 -0500
Subject: [PATCH] add development http server

---
 .formatter.exs              |  2 +-
 lib/mix/tasks/site.dev.ex   | 35 +++++++++++++++++++++++++++++++++++
 lib/mix/tasks/site.serve.ex | 35 +++++++++++++++++++++++++++++++++++
 lib/sloane_sh.ex            |  8 +++++++-
 lib/sloane_sh/serve.ex      | 21 +++++++++++++++++++++
 lib/sloane_sh/serve/plug.ex | 29 +++++++++++++++++++++++++++++
 lib/sloane_sh/watch.ex      |  9 ++++-----
 mix.exs                     |  4 +++-
 mix.lock                    |  8 ++++++++
 priv/site/pages/about.md    |  1 +
 10 files changed, 144 insertions(+), 8 deletions(-)
 create mode 100644 lib/mix/tasks/site.dev.ex
 create mode 100644 lib/mix/tasks/site.serve.ex
 create mode 100644 lib/sloane_sh/serve.ex
 create mode 100644 lib/sloane_sh/serve/plug.ex
 create mode 100644 priv/site/pages/about.md

diff --git a/.formatter.exs b/.formatter.exs
index 376fc86..8ab6168 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -1,5 +1,5 @@
 # Used by "mix format"
 [
   inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"],
-  import_deps: [:typed_struct]
+  import_deps: [:typed_struct, :plug]
 ]
diff --git a/lib/mix/tasks/site.dev.ex b/lib/mix/tasks/site.dev.ex
new file mode 100644
index 0000000..47f4c14
--- /dev/null
+++ b/lib/mix/tasks/site.dev.ex
@@ -0,0 +1,35 @@
+defmodule Mix.Tasks.Site.Dev do
+  @moduledoc "Build the site, watch for changes, and serve the built site"
+  @shortdoc "run site.watch and site.serve"
+  use Mix.Task
+
+  @impl Mix.Task
+  def run(_args) do
+    {:ok, watch_pid} =
+      Task.start_link(fn ->
+        Mix.Task.run("site.watch")
+      end)
+
+    {:ok, serve_pid} =
+      Task.start_link(fn ->
+        Mix.Task.run("site.serve")
+      end)
+
+    unless iex_running?() do
+      watch_ref = Process.monitor(watch_pid)
+      serve_ref = Process.monitor(serve_pid)
+
+      receive do
+        {:DOWN, ^watch_ref, _, _, _} ->
+          :ok
+
+        {:DOWN, ^serve_ref, _, _, _} ->
+          :ok
+      end
+    end
+  end
+
+  defp iex_running? do
+    Code.ensure_loaded?(IEx) and IEx.started?()
+  end
+end
diff --git a/lib/mix/tasks/site.serve.ex b/lib/mix/tasks/site.serve.ex
new file mode 100644
index 0000000..cbebd5b
--- /dev/null
+++ b/lib/mix/tasks/site.serve.ex
@@ -0,0 +1,35 @@
+defmodule Mix.Tasks.Site.Serve do
+  @moduledoc "Serve the built site. Only for use in development"
+  @shortdoc "serve the built site"
+  use Mix.Task
+  require Logger
+
+  @impl Mix.Task
+  def run(_args) do
+    Logger.info("Starting development server...")
+
+    {:ok, _} =
+      Application.ensure_all_started([
+        :telemetry,
+        :plug,
+        :thousand_island,
+        :bandit
+      ])
+
+    {:ok, pid} = SloaneSH.serve()
+
+    unless iex_running?() do
+      ref = Process.monitor(pid)
+
+      receive do
+        {:DOWN, ^ref, _, _, _} ->
+          Logger.info("Development server terminated")
+          :ok
+      end
+    end
+  end
+
+  defp iex_running? do
+    Code.ensure_loaded?(IEx) and IEx.started?()
+  end
+end
diff --git a/lib/sloane_sh.ex b/lib/sloane_sh.ex
index 7df2d54..8b4582f 100644
--- a/lib/sloane_sh.ex
+++ b/lib/sloane_sh.ex
@@ -4,8 +4,9 @@ defmodule SloaneSH do
   """
 
   alias SloaneSH.Build
-  alias SloaneSH.Watch
   alias SloaneSH.Context
+  alias SloaneSH.Serve
+  alias SloaneSH.Watch
 
   def build(_opts \\ []) do
     context()
@@ -19,6 +20,11 @@ defmodule SloaneSH do
     |> Watch.start_link()
   end
 
+  def serve do
+    context()
+    |> Serve.start_link()
+  end
+
   def context do
     Context.new()
     |> Context.init()
diff --git a/lib/sloane_sh/serve.ex b/lib/sloane_sh/serve.ex
new file mode 100644
index 0000000..bd4bc7e
--- /dev/null
+++ b/lib/sloane_sh/serve.ex
@@ -0,0 +1,21 @@
+defmodule SloaneSH.Serve do
+  @moduledoc """
+  Task to use `Bandit` to start `SloaneSH.Serve.Plug`
+  """
+  use Supervisor
+
+  alias __MODULE__
+
+  def start_link(ctx) do
+    Supervisor.start_link(__MODULE__, ctx, name: __MODULE__)
+  end
+
+  @impl Supervisor
+  def init(_ctx) do
+    children = [
+      {Bandit, plug: Serve.Plug}
+    ]
+
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+end
diff --git a/lib/sloane_sh/serve/plug.ex b/lib/sloane_sh/serve/plug.ex
new file mode 100644
index 0000000..2c6299b
--- /dev/null
+++ b/lib/sloane_sh/serve/plug.ex
@@ -0,0 +1,29 @@
+defmodule SloaneSH.Serve.Plug do
+  @moduledoc """
+  Basic HTTP server for testing and local development.
+
+  Inspired by https://github.com/mbuhot/plug_static_index_html
+  """
+  use Plug.Builder
+
+  plug Plug.Logger
+  plug :rewrite_for_index_html
+  plug Plug.Static, at: "/", from: {:sloane_sh, "priv/output"}
+  plug :not_found
+
+  def rewrite_for_index_html(conn, _) do
+    if String.match?(conn.request_path, ~r[.+\..+$]) do
+      conn
+    else
+      %{
+        conn
+        | request_path: Path.join(conn.request_path, "index.html"),
+          path_info: conn.path_info ++ ["index.html"]
+      }
+    end
+  end
+
+  def not_found(conn, _) do
+    send_resp(conn, 404, "Not found")
+  end
+end
diff --git a/lib/sloane_sh/watch.ex b/lib/sloane_sh/watch.ex
index 7068ed1..93e7011 100644
--- a/lib/sloane_sh/watch.ex
+++ b/lib/sloane_sh/watch.ex
@@ -19,11 +19,10 @@ defmodule SloaneSH.Watch do
   def init(%Context{} = ctx) do
     {:ok, watcher_pid} =
       FileSystem.start_link(
-        dirs:
-          dbg([
-            ctx.config.pages_dir,
-            ctx.config.posts_dir
-          ])
+        dirs: [
+          ctx.config.pages_dir,
+          ctx.config.posts_dir
+        ]
       )
 
     FileSystem.subscribe(watcher_pid)
diff --git a/mix.exs b/mix.exs
index dfdc4c7..191ad5f 100644
--- a/mix.exs
+++ b/mix.exs
@@ -24,7 +24,9 @@ defmodule SloaneSH.MixProject do
       {:file_system, "~> 1.0.0"},
       {:typed_struct, "~> 0.3.0"},
       {:earmark, "~> 1.4"},
-      {:earmark_parser, "~> 1.4"}
+      {:earmark_parser, "~> 1.4"},
+      {:plug, "~> 1.15"},
+      {:bandit, "~> 1.2"}
     ]
   end
 end
diff --git a/mix.lock b/mix.lock
index d9f79b7..11f5828 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,6 +1,14 @@
 %{
+  "bandit": {:hex, :bandit, "1.2.2", "569fe5d0efb107c9af37a1e37e25ce2ceec293101a2d4bc512876fc3207192b5", [:mix], [{:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "2f89adb7281c78d4e75733e0a9e1b24f46f84d2993963d6fa57d0eafadec5f03"},
   "earmark": {:hex, :earmark, "1.4.46", "8c7287bd3137e99d26ae4643e5b7ef2129a260e3dcf41f251750cb4563c8fb81", [:mix], [], "hexpm", "798d86db3d79964e759ddc0c077d5eb254968ed426399fbf5a62de2b5ff8910a"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
   "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
+  "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
+  "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
+  "plug": {:hex, :plug, "1.15.3", "712976f504418f6dff0a3e554c40d705a9bcf89a7ccef92fc6a5ef8f16a30a97", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "cc4365a3c010a56af402e0809208873d113e9c38c401cabd88027ef4f5c01fd2"},
+  "plug_crypto": {:hex, :plug_crypto, "2.0.0", "77515cc10af06645abbfb5e6ad7a3e9714f805ae118fa1a70205f80d2d70fe73", [:mix], [], "hexpm", "53695bae57cc4e54566d993eb01074e4d894b65a3766f1c43e2c61a1b0f45ea9"},
+  "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
+  "thousand_island": {:hex, :thousand_island, "1.3.2", "bc27f9afba6e1a676dd36507d42e429935a142cf5ee69b8e3f90bff1383943cd", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "0e085b93012cd1057b378fce40cbfbf381ff6d957a382bfdd5eca1a98eec2535"},
   "typed_struct": {:hex, :typed_struct, "0.3.0", "939789e3c1dca39d7170c87f729127469d1315dcf99fee8e152bb774b17e7ff7", [:mix], [], "hexpm", "c50bd5c3a61fe4e198a8504f939be3d3c85903b382bde4865579bc23111d1b6d"},
+  "websock": {:hex, :websock, "0.5.3", "2f69a6ebe810328555b6fe5c831a851f485e303a7c8ce6c5f675abeb20ebdadc", [:mix], [], "hexpm", "6105453d7fac22c712ad66fab1d45abdf049868f253cf719b625151460b8b453"},
 }
diff --git a/priv/site/pages/about.md b/priv/site/pages/about.md
new file mode 100644
index 0000000..489193a
--- /dev/null
+++ b/priv/site/pages/about.md
@@ -0,0 +1 @@
+Yes it does!!