From d7c9ed8398c988bd15b898928b85054fc648f805 Mon Sep 17 00:00:00 2001
From: Inhji <johnnie@posteo.de>
Date: Sat, 8 Apr 2023 11:40:41 +0200
Subject: [PATCH] filter notes by channel

---
 lib/chiya/notes.ex                               |  9 +++++++++
 lib/chiya_web/controllers/note_controller.ex     | 16 +++++++++++++++-
 .../controllers/note_html/index.html.heex        |  7 +++++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/lib/chiya/notes.ex b/lib/chiya/notes.ex
index 84d168d..8b1c5e0 100644
--- a/lib/chiya/notes.ex
+++ b/lib/chiya/notes.ex
@@ -26,6 +26,15 @@ defmodule Chiya.Notes do
     |> Repo.preload(@preloads)
   end
 
+  def list_notes_by_channel(%Chiya.Channels.Channel{} = channel) do
+    Note
+    |> join(:inner, [n], c in assoc(n, :channels))
+    |> where([n, c], c.id == ^channel.id)
+    |> order_by([n], desc: n.updated_at, desc: n.published_at)
+    |> Repo.all()
+    |> Repo.preload(@preloads)
+  end
+
   @doc """
   Preloads a note
 
diff --git a/lib/chiya_web/controllers/note_controller.ex b/lib/chiya_web/controllers/note_controller.ex
index 747c887..da02d0c 100644
--- a/lib/chiya_web/controllers/note_controller.ex
+++ b/lib/chiya_web/controllers/note_controller.ex
@@ -4,9 +4,23 @@ defmodule ChiyaWeb.NoteController do
   alias Chiya.Notes
   alias Chiya.Notes.{Note, NoteImport}
 
+  def index(conn, %{"channel" => channel_slug}) do
+    channels =
+      Chiya.Channels.list_channels()
+      |> Chiya.Channels.preload_channel()
+
+    channel = Chiya.Channels.get_channel_by_slug!(channel_slug)
+    notes = Notes.list_notes_by_channel(channel)
+    render(conn, :index, notes: notes, channels: channels)
+  end
+
   def index(conn, _params) do
+    channels =
+      Chiya.Channels.list_channels()
+      |> Chiya.Channels.preload_channel()
+
     notes = Notes.list_notes()
-    render(conn, :index, notes: notes)
+    render(conn, :index, notes: notes, channels: channels)
   end
 
   def new(conn, _params) do
diff --git a/lib/chiya_web/controllers/note_html/index.html.heex b/lib/chiya_web/controllers/note_html/index.html.heex
index 169b784..1854965 100644
--- a/lib/chiya_web/controllers/note_html/index.html.heex
+++ b/lib/chiya_web/controllers/note_html/index.html.heex
@@ -11,6 +11,13 @@
   </:actions>
 </.header>
 
+<section class="flex flex-row flex-wrap mt-4 gap-3">
+  <a href={~p"/admin/notes"} class="text-sm rounded-full bg-gray-300 hover:bg-gray-400 px-2 py-1">All</a>
+  <%= for channel <- @channels do %>
+    <a href={~p"/admin/notes?channel=#{channel.slug}"} class="text-sm rounded-full bg-gray-300 hover:bg-gray-400 px-2 py-1"><%= channel.name %> <span class="text-gray-600">(<%= Enum.count(channel.notes) %>)</span></a>
+  <% end %>
+</section>
+
 <.table id="notes" rows={@notes} row_click={&JS.navigate(~p"/admin/notes/#{&1}")}>
   <:col :let={note} label="Name"><%= note.name %></:col>
   <:col :let={note} label="Updated at"><%= from_now(note.updated_at) %></:col>