feat: initialize Phoenix application for weather alerts

This commit sets up the initial Silmataivas project structure, including: Phoenix web framework configuration, database models for users and locations, weather polling service, notification system, Docker and deployment configurations, CI/CD pipeline setup

6 files changed, 150 insertions, 0 deletions

diff --git a/lib/silmataivas_web/controllers/changeset_json.ex b/lib/silmataivas_web/controllers/changeset_json.ex
new file mode 100644
index 0000000..ac0226d
--- /dev/null
+++ b/lib/silmataivas_web/controllers/changeset_json.ex
@@ -0,0 +1,25 @@
+defmodule SilmataivasWeb.ChangesetJSON do
+  @doc """
+  Renders changeset errors.
+  """
+  def error(%{changeset: changeset}) do
+    # When encoded, the changeset returns its errors
+    # as a JSON object. So we just pass it forward.
+    %{errors: Ecto.Changeset.traverse_errors(changeset, &translate_error/1)}
+  end
+
+  defp translate_error({msg, opts}) do
+    # You can make use of gettext to translate error messages by
+    # uncommenting and adjusting the following code:
+
+    # if count = opts[:count] do
+    #   Gettext.dngettext(SilmataivasWeb.Gettext, "errors", msg, msg, count, opts)
+    # else
+    #   Gettext.dgettext(SilmataivasWeb.Gettext, "errors", msg, opts)
+    # end
+
+    Enum.reduce(opts, msg, fn {key, value}, acc ->
+      String.replace(acc, "%{#{key}}", fn _ -> to_string(value) end)
+    end)
+  end
+end
diff --git a/lib/silmataivas_web/controllers/error_json.ex b/lib/silmataivas_web/controllers/error_json.ex
new file mode 100644
index 0000000..a2ca902
--- /dev/null
+++ b/lib/silmataivas_web/controllers/error_json.ex
@@ -0,0 +1,21 @@
+defmodule SilmataivasWeb.ErrorJSON do
+  @moduledoc """
+  This module is invoked by your endpoint in case of errors on JSON requests.
+
+  See config/config.exs.
+  """
+
+  # If you want to customize a particular status code,
+  # you may add your own clauses, such as:
+  #
+  # 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 render(template, _assigns) do
+    %{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
+  end
+end
diff --git a/lib/silmataivas_web/controllers/fallback_controller.ex b/lib/silmataivas_web/controllers/fallback_controller.ex
new file mode 100644
index 0000000..f315110
--- /dev/null
+++ b/lib/silmataivas_web/controllers/fallback_controller.ex
@@ -0,0 +1,24 @@
+defmodule SilmataivasWeb.FallbackController do
+  @moduledoc """
+  Translates controller action results into valid `Plug.Conn` responses.
+
+  See `Phoenix.Controller.action_fallback/1` for more details.
+  """
+  use SilmataivasWeb, :controller
+
+  # This clause handles errors returned by Ecto's insert/update/delete.
+  def call(conn, {:error, %Ecto.Changeset{} = changeset}) do
+    conn
+    |> put_status(:unprocessable_entity)
+    |> put_view(json: SilmataivasWeb.ChangesetJSON)
+    |> render(:error, changeset: changeset)
+  end
+
+  # This clause is an example of how to handle resources that cannot be found.
+  def call(conn, {:error, :not_found}) do
+    conn
+    |> put_status(:not_found)
+    |> put_view(html: SilmataivasWeb.ErrorHTML, json: SilmataivasWeb.ErrorJSON)
+    |> render(:"404")
+  end
+end
diff --git a/lib/silmataivas_web/controllers/health_controller.ex b/lib/silmataivas_web/controllers/health_controller.ex
new file mode 100644
index 0000000..959b84b
--- /dev/null
+++ b/lib/silmataivas_web/controllers/health_controller.ex
@@ -0,0 +1,9 @@
+defmodule SilmataivasWeb.HealthController do
+  use SilmataivasWeb, :controller
+
+  def index(conn, _params) do
+    conn
+    |> put_status(:ok)
+    |> json(%{status: "ok"})
+  end
+end
diff --git a/lib/silmataivas_web/controllers/location_controller.ex b/lib/silmataivas_web/controllers/location_controller.ex
new file mode 100644
index 0000000..d494d59
--- /dev/null
+++ b/lib/silmataivas_web/controllers/location_controller.ex
@@ -0,0 +1,46 @@
+defmodule SilmataivasWeb.LocationController do
+  use SilmataivasWeb, :controller
+
+  alias Silmataivas.Locations
+  alias Silmataivas.Locations.Location
+
+  action_fallback SilmataivasWeb.FallbackController
+
+  def index(conn, _params) do
+    locations = Locations.list_locations()
+    render(conn, :index, locations: locations)
+  end
+
+  def create(conn, params) do
+    user = conn.assigns.current_user
+    params = Map.put(params, "user_id", user.id)
+
+    with {:ok, %Location{} = location} <- Locations.create_location(params) do
+      conn
+      |> put_status(:created)
+      |> put_resp_header("location", ~p"/api/locations/#{location}")
+      |> render(:show, location: location)
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    location = Locations.get_location!(id)
+    render(conn, :show, location: location)
+  end
+
+  def update(conn, %{"id" => id, "location" => location_params}) do
+    location = Locations.get_location!(id)
+
+    with {:ok, %Location{} = location} <- Locations.update_location(location, location_params) do
+      render(conn, :show, location: location)
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    location = Locations.get_location!(id)
+
+    with {:ok, %Location{}} <- Locations.delete_location(location) do
+      send_resp(conn, :no_content, "")
+    end
+  end
+end
diff --git a/lib/silmataivas_web/controllers/location_json.ex b/lib/silmataivas_web/controllers/location_json.ex
new file mode 100644
index 0000000..db7e469
--- /dev/null
+++ b/lib/silmataivas_web/controllers/location_json.ex
@@ -0,0 +1,25 @@
+defmodule SilmataivasWeb.LocationJSON do
+  alias Silmataivas.Locations.Location
+
+  @doc """
+  Renders a list of locations.
+  """
+  def index(%{locations: locations}) do
+    %{data: for(location <- locations, do: data(location))}
+  end
+
+  @doc """
+  Renders a single location.
+  """
+  def show(%{location: location}) do
+    %{data: data(location)}
+  end
+
+  defp data(%Location{} = location) do
+    %{
+      id: location.id,
+      latitude: location.latitude,
+      longitude: location.longitude
+    }
+  end
+end