From 9d161648cc0b30dd9e0ead12f3bd5a379b26c815 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Fri, 31 Aug 2018 15:51:45 +0200
Subject: Remove web interface, deregistration for chat subs on death

---
 lib/app/chat.ex        |  6 ++++++
 lib/application.ex     |  3 ---
 lib/web/httprouter.ex_ | 53 --------------------------------------------------
 mix.exs                |  8 ++------
 4 files changed, 8 insertions(+), 62 deletions(-)
 delete mode 100644 lib/web/httprouter.ex_

diff --git a/lib/app/chat.ex b/lib/app/chat.ex
index a9cfb1e..bc9f5de 100644
--- a/lib/app/chat.ex
+++ b/lib/app/chat.ex
@@ -117,6 +117,7 @@ defmodule SApp.Chat do
   end
 
   def handle_cast({:subscribe, pid}, state) do
+    Process.monitor(pid)
     new_subs = MapSet.put(state.subs, pid)
     {:noreply, %{ state | subs: new_subs }}
   end
@@ -159,6 +160,11 @@ defmodule SApp.Chat do
     {:noreply, %{state | store: new_store}}
   end
 
+  def handle_info({:DOWN, _ref, :process, pid, _reason}, state) do
+    new_subs = MapSet.delete(state.subs, pid)
+    {:noreply, %{ state | subs: new_subs }}
+  end
+
   defp push_messages(state, to, start, num) do
     case ML.read(state.store, start, num) do
       {:ok, list, rest} ->
diff --git a/lib/application.ex b/lib/application.ex
index eef02f0..3e3a6ac 100644
--- a/lib/application.ex
+++ b/lib/application.ex
@@ -23,9 +23,6 @@ defmodule Shard.Application do
 
       # Applications & data store
       { Shard.Manager, listen_port },
-
-      # Web UI
-      # Plug.Adapters.Cowboy.child_spec(:http, SWeb.HTTPRouter, [], port: listen_port + 1000)
     ]
 
     # See http://elixir-lang.org/docs/stable/elixir/Supervisor.html
diff --git a/lib/web/httprouter.ex_ b/lib/web/httprouter.ex_
deleted file mode 100644
index 57af9f9..0000000
--- a/lib/web/httprouter.ex_
+++ /dev/null
@@ -1,53 +0,0 @@
-defmodule SWeb.HTTPRouter do
-  use Plug.Router
-  use Plug.ErrorHandler
-
-  plug Plug.Parsers, parsers: [:urlencoded, :multipart]
-
-  plug :match
-  plug :dispatch
-
-  get "/" do
-    main_page(conn)
-  end
-
-  post "/" do
-    if Map.has_key?(conn.params, "msg") do
-      SApp.Chat.send(conn.params["msg"])
-    end
-    if Map.has_key?(conn.params, "nick") do
-      Shard.Identity.set_nickname(conn.params["nick"])
-    end
-    if Map.has_key?(conn.params, "peer") do
-      [ipstr, portstr] = String.split(conn.params["peer"], ":")
-      {:ok, ip} = :inet.parse_address (to_charlist ipstr)
-      {port, _} = Integer.parse portstr
-      Shard.Manager.add_peer(ip, port)
-    end
-
-    main_page(conn)
-  end
-
-  match _ do
-    send_resp(conn, 404, "Oops!")
-  end
-
-  def main_page(conn) do
-    {:ok, messages, _} = GenServer.call(SApp.Chat.Log, {:read, nil, 42})
-
-    msgtxt = messages
-    |> Enum.map(fn {ts, nick, msg} -> "#{ts |> DateTime.from_unix! |> DateTime.to_iso8601} &lt;#{nick}&gt; #{msg}\n" end)
-
-    peerlist = SNet.ConnSupervisor
-    |> DynamicSupervisor.which_children
-    |> Enum.map(fn {_, pid, _, _} -> "#{GenServer.call(pid, :get_host_str)}\n" end)
-
-    conn
-    |> put_resp_content_type("text/html")
-    |> send_resp(200, "<pre>#{msgtxt}</pre>" <>
-                      "<form method=POST><input type=text name=msg /><input type=submit value=send /></form>" <>
-                      "<form method=POST><input type=text name=nick value=\"#{Shard.Identity.get_nickname}\" /><input type=submit value=\"change nick\" /></form>" <>
-                      "<hr/><pre>#{peerlist}</pre>" <>
-                      "<form method=POST><input type=text name=peer /><input type=submit value=\"add peer\" /></form>")
-  end
-end
diff --git a/mix.exs b/mix.exs
index 71dac77..7192feb 100644
--- a/mix.exs
+++ b/mix.exs
@@ -25,13 +25,9 @@ defmodule Shard.MixProject do
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
-      # {:dep_from_hexpm, "~> 0.3.0"},
-      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
-      # {:cowboy, "~> 1.1.2"},
-      # {:plug, "~> 1.3.4"},
-        {:excoveralls, "~> 0.10", only: :test},
+      {:excoveralls, "~> 0.10", only: :test},
 
-		{:salty, "~> 0.1.3", hex: :libsalty},
+      {:salty, "~> 0.1.3", hex: :libsalty},
     ]
   end
 end
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