Added mix commands to manage users and view actors

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mix/tasks/mobilizon/users/delete.ex

@@ -0,0 +1,47 @@
+defmodule Mix.Tasks.Mobilizon.Users.Delete do
+  @moduledoc """
+  Task to delete a user
+  """
+  use Mix.Task
+  alias Mobilizon.Users
+  alias Mobilizon.Users.User
+
+  @shortdoc "Deletes a Mobilizon user"
+
+  @impl Mix.Task
+  def run([email | rest]) do
+    {options, [], []} =
+      OptionParser.parse(
+        rest,
+        strict: [
+          assume_yes: :boolean
+        ],
+        aliases: [
+          y: :assume_yes
+        ]
+      )
+
+    assume_yes? = Keyword.get(options, :assume_yes, false)
+
+    Mix.Task.run("app.start")
+
+    with {:ok, %User{} = user} <- Users.get_user_by_email(email),
+         true <- assume_yes? or Mix.shell().yes?("Continue with deleting user #{user.email}?"),
+         {:ok, %User{} = user} <-
+           Users.delete_user(user) do
+      Mix.shell().info("""
+      The user #{user.email} has been deleted
+      """)
+    else
+      {:error, :user_not_found} ->
+        Mix.raise("Error: No such user")
+
+      _ ->
+        Mix.raise("User has not been deleted.")
+    end
+  end
+
+  def run(_) do
+    Mix.raise("mobilizon.users.delete requires an email as argument")
+  end
+end