Download video(s) (first iteration) (#5)

* Updated package.json (and made an excuse to make a branch) * Video filepath parser (#6) * Restructured files; Added parser placeholder * More restructuring * Added basic parser for hydrating template strings * Improved docs * More docs * Initial implementation of media profiles (#7) * [WIP] Added basic video download method * [WIP] Very-WIP first steps at parsing options and downloading * Made my options safe by default and removed special safe versions * Ran html generator for mediaprofile model - leaving as-is for now * Addressed a bunch of TODO comments * Add "channel" type Media Source (#8) * [WIP] Working on fetching channel metadata in yt-dlp backend * Finished first draft of methods to do with querying channels * Renamed CommandRunnerMock to have a more descriptive name * Ran the phx generator for the channel model * Renamed Downloader namespace to MediaClient * [WIP] saving before attempting LiveView * LiveView did not work out but here's a working controller how about * Index a channel (#9) * Ran a MediaItem generator; Reformatted to my liking * [WIP] added basic index function * setup oban * Added basic Oban job for indexing * Added in workers for indexing; hooked them into record creation flow * Added a task model with a phx generator * Tied together tasks with jobs and channels * Download indexed videos (#10) * Clarified documentation * more comments * [WIP] hooked up basic video downloading; starting work on metadata * Added metadata model and parsing Adding the metadata model made me realize that, in many cases, yt-dlp returns undesired input in stdout, breaking parsing. In order to get the metadata model working, I had to change the way in which the app interacts with yt-dlp. Now, output is written as a file to disk which is immediately re-read and returned. * Added tests for video download worker * Hooked up video downloading to the channel indexing pipeline * Adds tasks for media items * Updated video metadata parser to extract the title * Ran linting
2024-01-30 20:15:59 -08:00
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+defmodule Pinchflat.Media do
+  @moduledoc """
+  The Media context.
+  """
+
+  import Ecto.Query, warn: false
+
+  alias Pinchflat.Repo
+  alias Pinchflat.Tasks
+  alias Pinchflat.Media.MediaItem
+  alias Pinchflat.MediaSource.Channel
+
+  @doc """
+  Returns the list of media_items. Returns [%MediaItem{}, ...].
+  """
+  def list_media_items do
+    Repo.all(MediaItem)
+  end
+
+  @doc """
+  Returns a list of pending media_items for a given channel, where
+  pending means the `video_filepath` is `nil`.
+
+  Returns [%MediaItem{}, ...].
+  """
+  def list_pending_media_items_for(%Channel{} = channel) do
+    from(
+      m in MediaItem,
+      where: m.channel_id == ^channel.id and is_nil(m.video_filepath)
+    )
+    |> Repo.all()
+  end
+
+  @doc """
+  Gets a single media_item.
+
+  Returns %MediaItem{}. Raises `Ecto.NoResultsError` if the Media item does not exist.
+  """
+  def get_media_item!(id), do: Repo.get!(MediaItem, id)
+
+  @doc """
+  Creates a media_item. Returns {:ok, %MediaItem{}} | {:error, %Ecto.Changeset{}}.
+  """
+  def create_media_item(attrs) do
+    %MediaItem{}
+    |> MediaItem.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a media_item. Returns {:ok, %MediaItem{}} | {:error, %Ecto.Changeset{}}.
+  """
+  def update_media_item(%MediaItem{} = media_item, attrs) do
+    media_item
+    |> MediaItem.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a media_item and its associated tasks.
+
+  Returns {:ok, %MediaItem{}} | {:error, %Ecto.Changeset{}}.
+  """
+  def delete_media_item(%MediaItem{} = media_item) do
+    Tasks.delete_tasks_for(media_item)
+    Repo.delete(media_item)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking media_item changes.
+  """
+  def change_media_item(%MediaItem{} = media_item, attrs \\ %{}) do
+    MediaItem.changeset(media_item, attrs)
+  end
+end