adds phoenix boilerplate and database api

- message communication added
- database migration added
- initial commit

lib/bump/application.ex

@@ -0,0 +1,36 @@
+defmodule Bump.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    children = [
+      # Start the Ecto repository
+      Bump.Repo,
+      # Start the Telemetry supervisor
+      BumpWeb.Telemetry,
+      # Start the PubSub system
+      {Phoenix.PubSub, name: Bump.PubSub},
+      # Start the Endpoint (http/https)
+      BumpWeb.Endpoint
+      # Start a worker by calling: Bump.Worker.start_link(arg)
+      # {Bump.Worker, arg}
+    ]
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: Bump.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  @impl true
+  def config_change(changed, _new, removed) do
+    BumpWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end

lib/bump/mailer.ex

@@ -0,0 +1,3 @@
+defmodule Bump.Mailer do
+  use Swoosh.Mailer, otp_app: :bump
+end

lib/bump/messages.ex

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+defmodule Bump.Messages do
+  alias Bump.Repo
+  import Ecto.Query
+
+  def get_newest_message(_sender) do
+  end
+
+  def get_all_messages_since(sender, minutes) do
+
+    ago = DateTime.utc_now 
+          |> Timex.shift(minutes: -minutes) 
+          |> DateTime.truncate(:second)
+
+    query = from m in "messages",
+      where: m.sender == ^sender and
+             m.timestamp >= ^ago,
+      select: m.data
+    Repo.all(query)
+  end
+
+  def remove_sender(_sender) do
+  end
+
+  def add_message(_sender, _message) do
+  end
+
+end

lib/bump/messages/message.ex

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+defmodule Bump.Messages.Message do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "messages" do
+    field :sender, :string
+    field :data, :string, default: ""
+    field :timestamp, :utc_datetime, default: DateTime.utc_now |> DateTime.truncate(:second)
+
+    timestamps()
+  end
+
+  def changeset(message, params) do
+    message
+    |> cast(params, [:sender, :data, :timestamp])
+  end
+end
+
+
+

lib/bump/repo.ex

@@ -0,0 +1,5 @@
+defmodule Bump.Repo do
+  use Ecto.Repo,
+    otp_app: :bump,
+    adapter: Ecto.Adapters.Postgres
+end