Serve local cover images

lib/music_library/records.ex

@@ -42,6 +42,11 @@ defmodule MusicLibrary.Records do
   """
   def get_record!(id), do: Repo.get!(Record, id)
 
+  def get_image!(id) do
+    record = get_record!(id)
+    {:ok, record.image_data}
+  end
+
   @doc """
   Creates a record.
 

lib/music_library/records/importer.ex

@@ -61,6 +61,14 @@ defmodule MusicLibrary.Records.Importer do
     end
   end
 
+  def import_cover_image(record) do
+    with {:ok, image_data} <- blob_get(record.image_url) do
+      record
+      |> Rec.add_image_data(image_data)
+      |> MusicLibrary.Repo.update!()
+    end
+  end
+
   def import_all do
     Rec
     |> MusicLibrary.Repo.all()
@@ -97,4 +105,25 @@ defmodule MusicLibrary.Records.Importer do
         {:error, msg}
     end
   end
+
+  defp blob_get(url) do
+    req =
+      Finch.build(:get, url, [
+        {"User-Agent", "MusicLibrary/0.1.0 ( cloud8421@gmail.com )"}
+      ])
+
+    case Finch.request(req, MusicLibrary.Finch) do
+      {:ok, response} when response.status == 200 ->
+        {:ok, response.body}
+
+      {:ok, response} when response.status in 301..308 ->
+        location = :proplists.get_value("location", response.headers)
+        blob_get(location)
+
+      other ->
+        msg = "Failed to fetch data from #{url}, reason: #{inspect(other)}"
+        Logger.error(msg)
+        {:error, msg}
+    end
+  end
 end

lib/music_library/records/record.ex

@@ -7,7 +7,8 @@ defmodule MusicLibrary.Records.Record do
   schema "records" do
     field :type, Ecto.Enum, values: [:album, :ep, :live, :compilation, :single, :other]
     field :title, :string
-    field :image, :string
+    field :image_url, :string
+    field :image_data, :binary
     field :year, :integer
     field :musicbrainz_id, Ecto.UUID
     field :genres, {:array, :string}
@@ -25,8 +26,8 @@ defmodule MusicLibrary.Records.Record do
   @doc false
   def changeset(record, attrs) do
     record
-    |> cast(attrs, [:type, :title, :musicbrainz_id, :year, :genres, :image])
-    |> validate_required([:type, :title, :musicbrainz_id, :year, :genres, :image])
+    |> cast(attrs, [:type, :title, :musicbrainz_id, :year, :genres, :image_url])
+    |> validate_required([:type, :title, :musicbrainz_id, :year, :genres, :image_url])
   end
 
   def add_artists(record, artists_attrs) do
@@ -34,4 +35,8 @@ defmodule MusicLibrary.Records.Record do
     |> change()
     |> put_embed(:artists, artists_attrs)
   end
+
+  def add_image_data(record, image_data) do
+    change(record, image_data: image_data)
+  end
 end

lib/music_library_web/controllers/image_controller.ex

@@ -0,0 +1,17 @@
+defmodule MusicLibraryWeb.ImageController do
+  use MusicLibraryWeb, :controller
+
+  alias MusicLibrary.Records
+
+  def show(conn, %{"record_id" => record_id}) do
+    {:ok, image_data} = Records.get_image!(record_id)
+
+    if image_data do
+      conn
+      |> put_resp_content_type("image/jpeg", "utf-8")
+      |> send_resp(200, image_data)
+    else
+      conn |> send_resp(404, "Not found")
+    end
+  end
+end

lib/music_library_web/live/record_live/form_component.ex

@@ -36,7 +36,7 @@ defmodule MusicLibraryWeb.RecordLive.FormComponent do
           label="Genres"
           options={[{"Option 1", "option1"}, {"Option 2", "option2"}]}
         />
-        <.input field={@form[:image]} type="text" label="Image" />
+        <.input field={@form[:image_url]} type="text" label="Image url" />
         <:actions>
           <.button phx-disable-with="Saving...">Save Record</.button>
         </:actions>

lib/music_library_web/live/record_live/index.html.heex

@@ -13,7 +13,7 @@
   row_click={fn {_id, record} -> JS.navigate(~p"/records/#{record}") end}
 >
   <:col :let={{_id, record}} label="Image">
-    <img class="max-w-16" src={record.image} alt={record.title} />
+    <img class="max-w-16" src={~p"/images/#{record.id}"} alt={record.title} />
   </:col>
   <:col :let={{_id, record}} label="Artists">
     <%= Enum.map(record.artists, fn a -> a.name end) %>

lib/music_library_web/live/record_live/show.html.heex

@@ -15,7 +15,9 @@
   <:item title="Musicbrainz"><%= @record.musicbrainz_id %></:item>
   <:item title="Year"><%= @record.year %></:item>
   <:item title="Genres"><%= @record.genres %></:item>
-  <:item title="Image"><%= @record.image %></:item>
+  <:item title="Image">
+    <img class="max-w-32" src={~p"/images/#{@record.id}"} alt={@record.title} />
+  </:item>
 </.list>
 
 <.back navigate={~p"/records"}>Back to records</.back>

lib/music_library_web/router.ex

@@ -18,6 +18,7 @@ defmodule MusicLibraryWeb.Router do
     pipe_through :browser
 
     get "/", PageController, :home
+    get "/images/:record_id", ImageController, :show
 
     live "/records", RecordLive.Index, :index
     live "/records/new", RecordLive.Index, :new