add filters show page

lib/philomena_web.ex

@@ -25,6 +25,7 @@ defmodule PhilomenaWeb do
       import PhilomenaWeb.Gettext
       import Canary.Plugs
       alias PhilomenaWeb.Router.Helpers, as: Routes
+      alias PhilomenaWeb.Plugs.RequireUser
     end
   end
 

lib/philomena_web/controllers/filter_controller.ex

@@ -1,10 +1,13 @@
 defmodule PhilomenaWeb.FilterController do
   use PhilomenaWeb, :controller
 
-  alias Philomena.Filters.Filter
+  alias Philomena.{Filters, Filters.Filter, Tags.Tag}
   alias Philomena.Repo
   import Ecto.Query
 
+  plug :load_and_authorize_resource, model: Filter, except: [:index], preload: :user
+  plug RequireUser when action not in [:index, :show]
+
   def index(conn, _params) do
     user = conn.assigns.current_user
 
@@ -26,4 +29,71 @@ defmodule PhilomenaWeb.FilterController do
 
     render(conn, "index.html", my_filters: my_filters, system_filters: system_filters)
   end
+
+  def show(conn, _params) do
+    filter = conn.assigns.filter
+
+    spoilered_tags = 
+      Tag
+      |> where([t], t.id in ^filter.spoilered_tag_ids)
+      |> order_by(asc: :name)
+      |> Repo.all()
+
+    hidden_tags =
+      Tag
+      |> where([t], t.id in ^filter.hidden_tag_ids)
+      |> order_by(asc: :name)
+      |> Repo.all()
+
+    render(conn, "show.html", filter: filter, spoilered_tags: spoilered_tags, hidden_tags: hidden_tags)
+  end
+
+  def new(conn, _params) do
+    changeset = Filters.change_filter(%Filter{})
+
+    render(conn, "new.html", changeset: changeset)
+  end
+
+  def create(conn, %{"filter" => filter_params}) do
+    case Filters.create_filter(conn.assigns.current_user, filter_params) do
+      {:ok, filter} ->
+        conn
+        |> put_flash(:info, "Filter created successfully.")
+        |> redirect(to: Routes.filter_path(conn, :show, filter))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, "new.html", changeset: changeset)
+    end
+  end
+
+  def edit(conn, _params) do
+    filter = conn.assigns.filter
+    changeset = Filters.change_filter(filter)
+
+    render(conn, "edit.html", filter: filter, changeset: changeset)
+  end
+
+  def update(conn, %{"filter" => filter_params}) do
+    filter = conn.assigns.filter
+
+    case Filters.update_filter(filter, filter_params) do
+      {:ok, filter} ->
+        conn
+        |> put_flash(:info, "Filter updated successfully.")
+        |> redirect(to: Routes.filter_path(conn, :show, filter))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        render(conn, "edit.html", filter: filter, changeset: changeset)
+    end
+  end
+
+  def delete(conn, _params) do
+    filter = conn.assigns.filter
+
+    {:ok, _filter} = Filters.delete_filter(filter)
+
+    conn
+    |> put_flash(:info, "Filter deleted successfully.")
+    |> redirect(to: Routes.filter_path(conn, :index))
+  end
 end

lib/philomena_web/plugs/current_filter.ex

@@ -5,7 +5,6 @@ defmodule PhilomenaWeb.Plugs.CurrentFilter do
   alias Philomena.{Filters, Filters.Filter}
   alias Philomena.Repo
   alias Pow.Plug
-
   # No options
   def init([]), do: false
 

lib/philomena_web/plugs/require_user.ex

@@ -0,0 +1,22 @@
+defmodule PhilomenaWeb.Plugs.RequireUser do
+  import Phoenix.Controller
+  import Plug.Conn
+  import Pow.Plug
+
+  # No options
+  def init([]), do: false
+
+  # Redirect if not logged in
+  def call(conn, _opts) do
+    user = conn |> current_user()
+
+    if user do
+      conn
+    else
+      conn
+      |> put_flash(:error, "You must be signed in to see this page.")
+      |> redirect(to: "/")
+      |> halt()
+    end
+  end
+end

lib/philomena_web/router.ex

@@ -38,7 +38,7 @@ defmodule PhilomenaWeb.Router do
     scope "/filters", Filter, as: :filter do
       resources "/current", CurrentController, only: [:update], singular: true
     end
-    resources "/filters", FilterController, only: [:index, :show]
+    resources "/filters", FilterController
 
     get "/:id", ImageController, :show
   end

lib/philomena_web/templates/filter/_filter.html.slime

@@ -24,15 +24,7 @@
           strong Your current filter
       - else
         li
-          = form_for nil, Routes.filter_current_path(@conn, :update, @filter), [method: "put", class: "button_to"], fn f ->
-            = submit "Use this filter", class: "button"
-
-      /- if can?(:edit, filter) && current_user && filter.user_id == current_user.id
-      /  li = link_to 'Edit this filter', edit_filter_path(filter), class: 'button'
-      /  - if can?(:delete, filter) && current_user && filter.user_id == current_user.id
-      /    li = button_to 'Delete this filter', filter_path(filter), data: { confirm: 'Are you sure you want to delete this filter?' }, method: :delete, class: 'button'
-      /- elsif can? :create, Filter
-      /  li = link_to 'Copy and Customize this filter', new_filter_path(based_on_filter_id: filter.id), class: 'button'
+          = button_to "Use this filter", Routes.filter_current_path(@conn, :update, @filter), method: "put", class: "button"
     p
       em
         = @filter.description

lib/philomena_web/templates/filter/show.html.slime

@@ -0,0 +1,69 @@
+h1
+  ' Viewing full filter details for
+  = @filter.name
+
+.filter
+  .filter-options
+    ul
+      li
+        ' Spoilers
+        => number_with_delimiter(length(@filter.spoilered_tag_ids))
+        => pluralize("tag", "tags", length(@filter.spoilered_tag_ids))
+        ' and hides
+        => number_with_delimiter(length(@filter.hidden_tag_ids))
+        => pluralize("tag", "tags", length(@filter.hidden_tag_ids))
+
+      = if @filter.id == @conn.assigns.current_filter.id do
+        li
+          strong Your current filter
+      - else
+        li
+          = button_to "Use this filter", Routes.filter_current_path(@conn, :update, @filter), method: "put", class: "button"
+
+      = if can?(@conn, :edit, @filter) do
+        li
+          = link("Edit this filter", to: Routes.filter_path(@conn, :edit, @filter))
+
+      = if can?(@conn, :delete, @filter) do
+        = button_to "Destroy this filter", Routes.filter_path(@conn, :delete, @filter), method: "delete", class: "button", data: [confirm: "Are you sure?"]
+
+  = if @filter.user do
+    p.filter-maintainer
+      ' This filter is maintained by
+      = render PhilomenaWeb.UserAttributionView, "_user.html", object: @filter
+      ' .
+
+  p.filter-description
+    = @filter.description
+
+  = if length(@spoilered_tags) > 0 or !!@filter.spoilered_complex_str do
+    h5 This filter spoilers...
+
+    = for tag <- @spoilered_tags do
+      = render PhilomenaWeb.TagView, "_tag.html", tag: tag
+
+    p Complex filter:
+    pre.spoiler-filter-code
+      = @filter.spoilered_complex_str
+
+  - else
+    p This filter doesn't spoiler any tags.
+
+
+  = if length(@hidden_tags) > 0 or !!@filter.hidden_complex_str do
+    h5 This filter hides...
+
+    = for tag <- @hidden_tags do
+      = render PhilomenaWeb.TagView, "_tag.html", tag: tag
+
+    p Complex filter:
+    pre.spoiler-filter-code
+      = @filter.hidden_complex_str
+
+  - else
+    p This filter doesn't hide any tags.
+
+
+
+/p = link("Report filter to moderators", new_report_path(reportable_class: 'filter', reportable_id: @filter.id)
+p = link("Back to filters", to: Routes.filter_path(@conn, :index))

lib/philomena_web/views/app_view.ex

@@ -47,4 +47,32 @@ defmodule PhilomenaWeb.AppView do
   def can?(conn, action, model) do
     Canada.Can.can?(conn.assigns.current_user, action, model)
   end
+
+  def number_with_delimiter(number) do
+    number
+    |> to_charlist()
+    |> Enum.reverse()
+    |> Enum.chunk_every(3)
+    |> Enum.map(&Enum.reverse(&1))
+    |> Enum.reverse()
+    |> Enum.join(",")
+  end
+
+  def pluralize(singular, plural, count) do
+    if count == 1 do
+      singular
+    else
+      plural
+    end
+  end
+
+  def button_to(text, route, args) do
+    method = Keyword.get(args, :method, "get")
+    class = Keyword.get(args, :class, nil)
+    data = Keyword.get(args, :data, [])
+
+    form_for(nil, route, [method: method, class: "button_to"], fn _f ->
+      submit text, class: class, data: data
+    end)
+  end
 end