9 files changed, 284 insertions, 0 deletions
diff --git a/lib/matrix_app_service.ex b/lib/matrix_app_service.ex
new file mode 100644
index 0000000..769a9f0
--- /dev/null
+++ b/lib/matrix_app_service.ex
@@ -0,0 +1,9 @@
+defmodule MatrixAppService do
+  @moduledoc """
+  MatrixAppService keeps the contexts that define your domain
+  and business logic.
+
+  Contexts are also responsible for managing your data, regardless
+  if it comes from the database, an external API or others.
+  """
+end
diff --git a/lib/matrix_app_service/application.ex b/lib/matrix_app_service/application.ex
new file mode 100644
index 0000000..648cc70
--- /dev/null
+++ b/lib/matrix_app_service/application.ex
@@ -0,0 +1,32 @@
+defmodule MatrixAppService.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  def start(_type, _args) do
+    children = [
+      # Start the Telemetry supervisor
+      MatrixAppServiceWeb.Telemetry,
+      # Start the PubSub system
+      {Phoenix.PubSub, name: MatrixAppService.PubSub},
+      # Start the Endpoint (http/https)
+      MatrixAppServiceWeb.Endpoint
+      # Start a worker by calling: MatrixAppService.Worker.start_link(arg)
+      # {MatrixAppService.Worker, arg}
+    ]
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: MatrixAppService.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  def config_change(changed, _new, removed) do
+    MatrixAppServiceWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end
diff --git a/lib/matrix_app_service_web.ex b/lib/matrix_app_service_web.ex
new file mode 100644
index 0000000..e388fee
--- /dev/null
+++ b/lib/matrix_app_service_web.ex
@@ -0,0 +1,74 @@
+defmodule MatrixAppServiceWeb do
+  @moduledoc """
+  The entrypoint for defining your web interface, such
+  as controllers, views, channels and so on.
+
+  This can be used in your application as:
+
+      use MatrixAppServiceWeb, :controller
+      use MatrixAppServiceWeb, :view
+
+  The definitions below will be executed for every view,
+  controller, etc, so keep them short and clean, focused
+  on imports, uses and aliases.
+
+  Do NOT define functions inside the quoted expressions
+  below. Instead, define any helper function in modules
+  and import those modules here.
+  """
+
+  def controller do
+    quote do
+      use Phoenix.Controller, namespace: MatrixAppServiceWeb
+
+      import Plug.Conn
+      alias MatrixAppServiceWeb.Router.Helpers, as: Routes
+    end
+  end
+
+  def view do
+    quote do
+      use Phoenix.View,
+        root: "lib/matrix_app_service_web/templates",
+        namespace: MatrixAppServiceWeb
+
+      # Import convenience functions from controllers
+      import Phoenix.Controller, only: [get_flash: 1, get_flash: 2, view_module: 1]
+
+      # Include shared imports and aliases for views
+      unquote(view_helpers())
+    end
+  end
+
+  def router do
+    quote do
+      use Phoenix.Router
+
+      import Plug.Conn
+      import Phoenix.Controller
+    end
+  end
+
+  def channel do
+    quote do
+      use Phoenix.Channel
+    end
+  end
+
+  defp view_helpers do
+    quote do
+      # Import basic rendering functionality (render, render_layout, etc)
+      import Phoenix.View
+
+      import MatrixAppServiceWeb.ErrorHelpers
+      alias MatrixAppServiceWeb.Router.Helpers, as: Routes
+    end
+  end
+
+  @doc """
+  When used, dispatch to the appropriate controller/view/etc.
+  """
+  defmacro __using__(which) when is_atom(which) do
+    apply(__MODULE__, which, [])
+  end
+end
diff --git a/lib/matrix_app_service_web/channels/user_socket.ex b/lib/matrix_app_service_web/channels/user_socket.ex
new file mode 100644
index 0000000..ec2e9fb
--- /dev/null
+++ b/lib/matrix_app_service_web/channels/user_socket.ex
@@ -0,0 +1,35 @@
+defmodule MatrixAppServiceWeb.UserSocket do
+  use Phoenix.Socket
+
+  ## Channels
+  # channel "room:*", MatrixAppServiceWeb.RoomChannel
+
+  # Socket params are passed from the client and can
+  # be used to verify and authenticate a user. After
+  # verification, you can put default assigns into
+  # the socket that will be set for all channels, ie
+  #
+  #     {:ok, assign(socket, :user_id, verified_user_id)}
+  #
+  # To deny connection, return `:error`.
+  #
+  # See `Phoenix.Token` documentation for examples in
+  # performing token verification on connect.
+  @impl true
+  def connect(_params, socket, _connect_info) do
+    {:ok, socket}
+  end
+
+  # Socket id's are topics that allow you to identify all sockets for a given user:
+  #
+  #     def id(socket), do: "user_socket:#{socket.assigns.user_id}"
+  #
+  # Would allow you to broadcast a "disconnect" event and terminate
+  # all active sockets and channels for a given user:
+  #
+  #     MatrixAppServiceWeb.Endpoint.broadcast("user_socket:#{user.id}", "disconnect", %{})
+  #
+  # Returning `nil` makes this socket anonymous.
+  @impl true
+  def id(_socket), do: nil
+end
diff --git a/lib/matrix_app_service_web/endpoint.ex b/lib/matrix_app_service_web/endpoint.ex
new file mode 100644
index 0000000..0ee00fc
--- /dev/null
+++ b/lib/matrix_app_service_web/endpoint.ex
@@ -0,0 +1,45 @@
+defmodule MatrixAppServiceWeb.Endpoint do
+  use Phoenix.Endpoint, otp_app: :matrix_app_service
+
+  # The session will be stored in the cookie and signed,
+  # this means its contents can be read but not tampered with.
+  # Set :encryption_salt if you would also like to encrypt it.
+  @session_options [
+    store: :cookie,
+    key: "_matrix_app_service_key",
+    signing_salt: "zE7AHynD"
+  ]
+
+  socket "/socket", MatrixAppServiceWeb.UserSocket,
+    websocket: true,
+    longpoll: false
+
+  # Serve at "/" the static files from "priv/static" directory.
+  #
+  # You should set gzip to true if you are running phx.digest
+  # when deploying your static files in production.
+  plug Plug.Static,
+    at: "/",
+    from: :matrix_app_service,
+    gzip: false,
+    only: ~w(css fonts images js favicon.ico robots.txt)
+
+  # Code reloading can be explicitly enabled under the
+  # :code_reloader configuration of your endpoint.
+  if code_reloading? do
+    plug Phoenix.CodeReloader
+  end
+
+  plug Plug.RequestId
+  plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
+
+  plug Plug.Parsers,
+    parsers: [:urlencoded, :multipart, :json],
+    pass: ["*/*"],
+    json_decoder: Phoenix.json_library()
+
+  plug Plug.MethodOverride
+  plug Plug.Head
+  plug Plug.Session, @session_options
+  plug MatrixAppServiceWeb.Router
+end
diff --git a/lib/matrix_app_service_web/router.ex b/lib/matrix_app_service_web/router.ex
new file mode 100644
index 0000000..3a24510
--- /dev/null
+++ b/lib/matrix_app_service_web/router.ex
@@ -0,0 +1,11 @@
+defmodule MatrixAppServiceWeb.Router do
+  use MatrixAppServiceWeb, :router
+
+  pipeline :api do
+    plug :accepts, ["json"]
+  end
+
+  scope "/api", MatrixAppServiceWeb do
+    pipe_through :api
+  end
+end
diff --git a/lib/matrix_app_service_web/telemetry.ex b/lib/matrix_app_service_web/telemetry.ex
new file mode 100644
index 0000000..de3ec2d
--- /dev/null
+++ b/lib/matrix_app_service_web/telemetry.ex
@@ -0,0 +1,46 @@
+defmodule MatrixAppServiceWeb.Telemetry do
+  use Supervisor
+  import Telemetry.Metrics
+
+  def start_link(arg) do
+    Supervisor.start_link(__MODULE__, arg, name: __MODULE__)
+  end
+
+  @impl true
+  def init(_arg) do
+    children = [
+      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
+      # Add reporters as children of your supervision tree.
+      # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
+    ]
+
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+
+  def metrics do
+    [
+      # Phoenix Metrics
+      summary("phoenix.endpoint.stop.duration",
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.router_dispatch.stop.duration",
+        tags: [:route],
+        unit: {:native, :millisecond}
+      ),
+
+      # VM Metrics
+      summary("vm.memory.total", unit: {:byte, :kilobyte}),
+      summary("vm.total_run_queue_lengths.total"),
+      summary("vm.total_run_queue_lengths.cpu"),
+      summary("vm.total_run_queue_lengths.io")
+    ]
+  end
+
+  defp periodic_measurements do
+    [
+      # A module, function and arguments to be invoked periodically.
+      # This function must call :telemetry.execute/3 and a metric must be added above.
+      # {MatrixAppServiceWeb, :count_users, []}
+    ]
+  end
+end
diff --git a/lib/matrix_app_service_web/views/error_helpers.ex b/lib/matrix_app_service_web/views/error_helpers.ex
new file mode 100644
index 0000000..4eff422
--- /dev/null
+++ b/lib/matrix_app_service_web/views/error_helpers.ex
@@ -0,0 +1,16 @@
+defmodule MatrixAppServiceWeb.ErrorHelpers do
+  @moduledoc """
+  Conveniences for translating and building error messages.
+  """
+
+  @doc """
+  Translates an error message.
+  """
+  def translate_error({msg, opts}) do
+    # Because the error messages we show in our forms and APIs
+    # are defined inside Ecto, we need to translate them dynamically.
+    Enum.reduce(opts, msg, fn {key, value}, acc ->
+      String.replace(acc, "%{#{key}}", to_string(value))
+    end)
+  end
+end
diff --git a/lib/matrix_app_service_web/views/error_view.ex b/lib/matrix_app_service_web/views/error_view.ex
new file mode 100644
index 0000000..2358355
--- /dev/null
+++ b/lib/matrix_app_service_web/views/error_view.ex
@@ -0,0 +1,16 @@
+defmodule MatrixAppServiceWeb.ErrorView do
+  use MatrixAppServiceWeb, :view
+
+  # If you want to customize a particular status code
+  # for a certain format, you may uncomment below.
+  # def render("500.json", _assigns) do
+  #   %{errors: %{detail: "Internal Server Error"}}
+  # end
+
+  # By default, Phoenix returns the status message from
+  # the template name. For example, "404.json" becomes
+  # "Not Found".
+  def template_not_found(template, _assigns) do
+    %{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
+  end
+end