Start pipeline UI

lib/frenzy_web/controllers/feed_controller.ex

@@ -53,9 +53,13 @@ defmodule FrenzyWeb.FeedController do
   end
 
   def edit(conn, _params) do
-    feed = conn.assigns[:feed] |> Repo.preload(:filter)
-    changeset = Feed.changeset(feed, %{})
-    render(conn, "edit.html", changeset: changeset)
+    feed = conn.assigns[:feed] |> Repo.preload([:filter, :pipeline_stages])
+    stages = Enum.sort_by(feed.pipeline_stages, fn stage -> stage.index end)
+
+    render(conn, "edit.html", %{
+      feed: feed,
+      stages: stages
+    })
   end
 
   def update(conn, %{"feed" => feed_params}) do

lib/frenzy_web/controllers/pipeline_controller.ex

@@ -0,0 +1,114 @@
+defmodule FrenzyWeb.PipelineController do
+  use FrenzyWeb, :controller
+  alias Frenzy.{Repo, Feed, PipelineStage}
+  alias FrenzyWeb.Router.Helpers, as: Routes
+  alias FrenzyWeb.Endpoint
+  import Ecto.Query
+
+  plug :user_owns_feed
+  plug :user_owns_stage
+
+  defp user_owns_feed(%Plug.Conn{path_params: %{"feed_id" => feed_id}} = conn, _opts) do
+    user = conn.assigns[:user]
+
+    feed = Repo.get(Feed, feed_id) |> Repo.preload(:pipeline_stages)
+
+    if Enum.any?(user.groups, fn g -> g.id == feed.group_id end) do
+      conn
+      |> assign(:feed, feed)
+    else
+      conn
+      |> put_flash(:error, "You do not have permission to access that resource.")
+      |> redirect(to: Routes.group_path(Endpoint, :index))
+      |> halt()
+    end
+  end
+
+  defp user_owns_feed(conn, _opts), do: conn
+
+  defp user_owns_stage(%Plug.Conn{path_params: %{"stage_id" => stage_id}} = conn, _opts) do
+    feed = conn.assigns[:feed]
+
+    stage = Repo.get(PipelineStage, stage_id)
+
+    if stage.feed_id == feed.id do
+      conn
+      |> assign(:stage, stage)
+    else
+      conn
+      |> put_flash(:error, "You do not have permission to access that resource.")
+      |> redirect(to: Routes.group_path(Endpoint, :index))
+      |> halt()
+    end
+  end
+
+  defp user_owns_stage(conn, _opts), do: conn
+
+  def edit(conn, %{"stage_id" => stage_id}) do
+    feed = conn.assigns[:feed]
+    stage = conn.assigns[:stage]
+    {:ok, options_json} = Jason.encode(stage.options, pretty: true)
+
+    render(conn, "edit.html", %{
+      feed: feed,
+      stage: stage,
+      options: options_json
+    })
+  end
+
+  def update(conn, %{"options" => options_json}) do
+    feed = conn.assigns[:feed]
+    stage = conn.assigns[:stage]
+    {:ok, options} = Jason.decode(options_json)
+    changeset = PipelineStage.changeset(stage, %{options: options})
+    {:ok, _stage} = Repo.update(changeset)
+
+    conn
+    |> put_flash(:info, "Pipeline Stage updated")
+    |> redirect(to: Routes.feed_path(Endpoint, :edit, feed.id))
+  end
+
+  def new(conn, _params) do
+    changeset = PipelineStage.changeset(%PipelineStage{}, %{})
+
+    render(conn, "new.html", %{
+      feed: conn.assigns[:feed],
+      changeset: changeset
+    })
+  end
+
+  def create(conn, %{
+        "pipeline_stage" => %{
+          "index" => index,
+          "module_name" => module_name,
+          "options" => options_json
+        }
+      }) do
+    feed = conn.assigns[:feed]
+    {index, _} = Integer.parse(index)
+    {:ok, options} = Jason.decode(options_json)
+
+    changeset =
+      Ecto.build_assoc(feed, :pipeline_stages, %{
+        index: index,
+        module_name: module_name,
+        options: options
+      })
+
+    {:ok, _stage} = Repo.insert(changeset)
+
+    conn
+    |> put_flash(:info, "Pipeline Stage created")
+    |> redirect(to: Routes.feed_path(Endpoint, :edit, feed.id))
+  end
+
+  def delete(conn, _params) do
+    feed = conn.assigns[:feed]
+    stage = conn.assigns[:stage]
+    {:ok, _stage} = Repo.delete(stage)
+
+    conn
+    |> put_flash(:info, "Pipeline Stage deleted")
+    |> redirect(to: Routes.feed_path(Endpoint, :edit, feed.id))
+  end
+end

lib/frenzy_web/router.ex

@@ -49,8 +49,14 @@ defmodule FrenzyWeb.Router do
 
     resources "/feeds", FeedController, except: [:index, :new]
     post "/feeds/:id/refresh", FeedController, :refresh
-    #post "/feeds/:id/enable_filter", FeedController, :enable_filter
-    #post "/feeds/:id/disable_filter", FeedController, :disable_filter
+
+    # resources "/pipelines", PipelineController, only: [:edit, :update, :new, :create]
+
+    get "/feeds/:feed_id/pipelines/:stage_id/edit", PipelineController, :edit
+    post "/feeds/:feed_id/pipelines/:stage_id/update", PipelineController, :update
+    delete "/feeds/:feed_id/pipelines/:stage_id/delete", PipelineController, :delete
+    get "/feeds/:feed_id/pipelines/new", PipelineController, :new
+    post "/feeds/:feed_id/pipelines/create", PipelineController, :create
 
     resources "/filters", FilterController, only: [:edit, :update]
     post "/filters/:id/add_rule", FilterController, :add_rule

lib/frenzy_web/templates/feed/edit.html.eex

@@ -1,25 +1,29 @@
-<h2>Feed</h2>
-<%= form_tag Routes.filter_path(@conn, :edit, @changeset.data.filter.id), method: :get, class: "d-inline" do %>
-  <%= submit "Edit Filter", class: "btn btn-secondary" %>
-<% end %>
+<h2>Feed Pipeline</h2>
 
-<%= form_for @changeset, Routes.feed_path(@conn, :update, @changeset.data.id), fn form -> %>
-  <div class="form-group row">
-    <label class="col-sm-3 col-form-label" for="filter_enabled">Filter Enabled</label>
-    <div class="col-sm-9">
-      <%= checkbox form, :filter_enabled %>
-    </div>
-  </div>
-  <div class="form-group row">
-    <label class="col-sm-3 col-form-label" for="scrape_remote_content">Scrape Remote Content</label>
-    <div class="col-sm-9">
-      <%= checkbox form, :scrape_remote_content %>
-    </div>
-  </div>
+<table class="table table-striped mt-4">
+  <thead>
+    <tr>
+      <th>Module</th>
+      <th></th>
+    </tr>
+  </thead>
+  <tbody>
+    <%= for stage <- @stages do %>
+      <tr>
+        <td>
+          <code><%= stage.module_name %></code>
+        </td>
+        <td>
+          <a href="<%= Routes.pipeline_path(@conn, :edit, @feed.id, stage.id) %>" class="btn btn-primary btn-sm">
+            Edit
+          </a>
+          <%= form_for @conn, Routes.pipeline_path(@conn, :delete, @feed.id, stage.id), [method: :delete, style: "display: inline-block;"], fn f -> %>
+            <%= submit "Delete", class: "btn btn-danger btn-sm" %>
+          <% end %>
+        </td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
 
-  <div class="form-group row">
-    <div class="col-sm-10">
-      <%= submit "Update Feed", class: "btn btn-primary" %>
-    </div>
-  </div>
-<% end %>
+<a href="<%= Routes.pipeline_path(@conn, :new, @feed.id) %>" class="btn btn-primary">Add Stage</a>

lib/frenzy_web/templates/pipeline/edit.html.eex

@@ -0,0 +1,9 @@
+<h2>Pipeline Stage</h2>
+<h3>Feed: <%= @feed.title %></h3>
+<h3>Module: <code><%= @stage.module_name %></code></h3>
+
+<%= form_for @conn, Routes.pipeline_path(@conn, :update, @feed.id, @stage.id), fn f -> %>
+  <%= textarea f, :options, value: @options, class: "form-control", rows: 15, style: "font-family: monospace;" %>
+  <%= submit "Update", class: "btn btn-primary mt-2" %>
+<% end %>
+

lib/frenzy_web/templates/pipeline/new.html.eex

@@ -0,0 +1,27 @@
+<h2>Feed Pipeline</h2>
+
+<%= form_for @changeset, Routes.pipeline_path(@conn, :create, @feed.id), fn f -> %>
+  <div class="form-group row">
+    <label class="col-sm-2 col-form-label" for="module_name">Module Name</label>
+    <div class="col-sm-10">
+      <%= text_input f, :module_name, placeholder: "Frenzy.Pipeline.FilterStage", class: "form-control" %>
+    </div>
+  </div>
+  <div class="form-group row">
+    <label class="col-sm-2 col-form-label" for="index">Index</label>
+    <div class="col-sm-10">
+      <%= number_input f, :index, value: "#{@feed.pipeline_stages |> Enum.count()}", class: "form-control" %>
+    </div>
+  </div>
+  <div class="form-group row">
+    <label class="col-sm-2 col-form-label" for="options">Options</label>
+    <div class="col-sm-10">
+      <%= textarea f, :options, value: "{}", class: "form-control", rows: 15, style: "font-family: monospace;" %>
+    </div>
+  </div>
+  <div class="form-group row">
+    <div class="col-sm-10">
+      <%= submit "Create Stage", class: "btn btn-primary" %>
+    </div>
+  </div>
+<% end %>

lib/frenzy_web/views/pipeline_view.ex

@@ -0,0 +1,3 @@
+defmodule FrenzyWeb.PipelineView do
+  use FrenzyWeb, :view
+end