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lib/app/repo.ex

@@ -2,4 +2,39 @@ defmodule App.Repo do
   use Ecto.Repo,
     otp_app: :app,
     adapter: Ecto.Adapters.Postgres
+
+  @doc """
+  `validate_order/1` validates the ordering is one of `asc` or `desc`
+
+  ## Examples
+
+      iex> App.Repo.validate_order("asc")
+      true
+
+      iex> App.Repo.validate_order(:asc)
+      true
+
+      iex> App.Repo.validate_order(:invalid)
+      false
+
+      # Avoid common SQL injection attacks:
+      iex> App.Repo.validate_order("OR 1=1")
+      false
+  """
+  def validate_order(order) when is_bitstring(order) do
+    Enum.member?(
+      ~w(asc desc),
+      order
+    )
+  end
+
+  def validate_order(order) when is_atom(order) do
+    Enum.member?(
+      [:asc, :desc],
+      order
+    )
+  end
+
+  def toggle_sort_order(:asc), do: :desc
+  def toggle_sort_order(:desc), do: :asc
 end

lib/app/stats.ex

@@ -31,7 +31,7 @@ defmodule App.Stats do
     sort_column =
       if validate_sort_column(sort_column), do: sort_column, else: "person_id"
 
-    sort_order = if validate_order(sort_order), do: sort_order, else: "asc"
+    sort_order = if Repo.validate_order(sort_order), do: sort_order, else: "asc"
 
     sql = """
     SELECT i.person_id,
@@ -88,26 +88,4 @@ defmodule App.Stats do
       column
     )
   end
-
-  @doc """
-  `validate_order/1` validates the ordering is one of `asc` or `desc`
-
-  ## Examples
-
-      iex> App.Stats.validate_order("asc")
-      true
-
-      iex> App.Stats.validate_order(:invalid)
-      false
-
-      # Avoid common SQL injection attacks:
-      iex> App.Stats.validate_order("OR 1=1")
-      false
-  """
-  def validate_order(order) do
-    Enum.member?(
-      ~w(asc desc),
-      order
-    )
-  end
 end

lib/app/tag.ex

@@ -2,7 +2,7 @@ defmodule App.Tag do
   use Ecto.Schema
   import Ecto.Changeset
   import Ecto.Query
-  alias App.{Item, ItemTag, Repo}
+  alias App.{Item, ItemTag, Repo, Timer}
   alias __MODULE__
 
   @derive {Jason.Encoder, only: [:id, :text, :person_id, :color]}
@@ -11,6 +11,10 @@ defmodule App.Tag do
     field :person_id, :integer
     field :text, :string
 
+    field :last_used_at, :naive_datetime, virtual: true
+    field :items_count, :integer, virtual: true
+    field :total_time_logged, :integer, virtual: true
+
     many_to_many(:items, Item, join_through: ItemTag)
     timestamps()
   end
@@ -88,6 +92,42 @@ defmodule App.Tag do
     |> Repo.all()
   end
 
+  def list_person_tags_complete(
+        person_id,
+        sort_column \\ :text,
+        sort_order \\ :asc
+      ) do
+    sort_column =
+      if validate_sort_column(sort_column), do: sort_column, else: :text
+
+    sort_order = if Repo.validate_order(sort_order), do: sort_order, else: :asc
+
+    Tag
+    |> where(person_id: ^person_id)
+    |> join(:left, [t], it in ItemTag, on: t.id == it.tag_id)
+    |> join(:left, [t, it], i in Item, on: i.id == it.item_id)
+    |> join(:left, [t, it, i], tm in Timer, on: tm.item_id == i.id)
+    |> group_by([t], t.id)
+    |> select([t, it, i, tm], %{
+      t
+      | last_used_at: max(it.inserted_at),
+        items_count: fragment("count(DISTINCT ?)", i.id),
+        total_time_logged:
+          sum(
+            coalesce(
+              fragment(
+                "EXTRACT(EPOCH FROM (? - ?))",
+                tm.stop,
+                tm.start
+              ),
+              0
+            )
+          )
+    })
+    |> order_by(^get_order_by_keyword(sort_column, sort_order))
+    |> Repo.all()
+  end
+
   def list_person_tags_text(person_id) do
     Tag
     |> where(person_id: ^person_id)
@@ -105,4 +145,26 @@ defmodule App.Tag do
   def delete_tag(%Tag{} = tag) do
     Repo.delete(tag)
   end
+
+  defp validate_sort_column(column) do
+    Enum.member?(
+      [
+        :text,
+        :color,
+        :created_at,
+        :last_used_at,
+        :items_count,
+        :total_time_logged
+      ],
+      column
+    )
+  end
+
+  defp get_order_by_keyword(sort_column, :asc) do
+    [asc: sort_column]
+  end
+
+  defp get_order_by_keyword(sort_column, :desc) do
+    [desc: sort_column]
+  end
 end

lib/app_web/controllers/tag_controller.ex

@@ -3,17 +3,6 @@ defmodule AppWeb.TagController do
   alias App.{Person, Tag}
   plug :permission_tag when action in [:edit, :update, :delete]
 
-  def index(conn, _params) do
-    person_id = conn.assigns[:person][:id] || 0
-    tags = Tag.list_person_tags(person_id)
-
-    render(conn, "index.html",
-      tags: tags,
-      lists: App.List.get_lists_for_person(person_id),
-      custom_list: false
-    )
-  end
-
   def new(conn, _params) do
     changeset = Tag.changeset(%Tag{})
     render(conn, "new.html", changeset: changeset)

lib/app_web/live/stats_live.ex

@@ -1,7 +1,7 @@
 defmodule AppWeb.StatsLive do
   require Logger
   use AppWeb, :live_view
-  alias App.{Stats, DateTimeHelper, Person}
+  alias App.{Stats, DateTimeHelper, Person, Repo}
   alias Phoenix.Socket.Broadcast
 
   # run authentication on mount
@@ -74,7 +74,7 @@ defmodule AppWeb.StatsLive do
 
     sort_order =
       if socket.assigns.sort_column == sort_column do
-        toggle_sort_order(socket.assigns.sort_order)
+        Repo.toggle_sort_order(socket.assigns.sort_order)
       else
         :asc
       end
@@ -114,7 +114,4 @@ defmodule AppWeb.StatsLive do
 
   def is_highlighted_person?(metric, person_id),
     do: metric.person_id == person_id
-
-  defp toggle_sort_order(:asc), do: :desc
-  defp toggle_sort_order(:desc), do: :asc
 end

lib/app_web/live/stats_live.html.heex

@@ -13,33 +13,45 @@
       highlight={&is_highlighted_person?(&1, @person_id)}
     >
       <:column :let={metric} label="Id" key="person_id">
-        <td class="px-6 py-4" data-test-id="person_id">
+        <td class="px-6 py-4" data-test-id={"person_id_#{metric.person_id}"}>
           <a href={person_link(metric.person_id)}>
             <%= metric.person_id %>
           </a>
         </td>
       </:column>
 
       <:column :let={metric} label="Items" key="num_items">
-        <td class="px-6 py-4 text-center" data-test-id="num_items">
+        <td
+          class="px-6 py-4 text-center"
+          data-test-id={"num_items_#{metric.person_id}"}
+        >
           <%= metric.num_items %>
         </td>
       </:column>
 
       <:column :let={metric} label="Timers" key="num_timers">
-        <td class="px-6 py-4 text-center" data-test-id="num_timers">
+        <td
+          class="px-6 py-4 text-center"
+          data-test-id={"num_timers_#{metric.person_id}"}
+        >
           <%= metric.num_timers %>
         </td>
       </:column>
 
       <:column :let={metric} label="First Joined" key="first_inserted_at">
-        <td class="px-6 py-4 text-center" data-test-id="first_inserted_at">
+        <td
+          class="px-6 py-4 text-center"
+          data-test-id={"first_inserted_at_#{metric.person_id}"}
+        >
           <%= format_date(metric.first_inserted_at) %>
         </td>
       </:column>
 
       <:column :let={metric} label="Last Item Inserted" key="last_inserted_at">
-        <td class="px-6 py-4 text-center" data-test-id="last_inserted_at">
+        <td
+          class="px-6 py-4 text-center"
+          data-test-id={"last_inserted_at_#{metric.person_id}"}
+        >
           <%= format_date(metric.last_inserted_at) %>
         </td>
       </:column>
@@ -49,7 +61,10 @@
         label="Total Elapsed Time"
         key="total_timers_in_seconds"
       >
-        <td class="px-6 py-4 text-center" data-test-id="total_timers_in_seconds">
+        <td
+          class="px-6 py-4 text-center"
+          data-test-id={"total_timers_in_seconds_#{metric.person_id}"}
+        >
           <%= format_seconds(metric.total_timers_in_seconds) %>
         </td>
       </:column>

lib/app_web/live/tags_live.ex

@@ -0,0 +1,60 @@
+defmodule AppWeb.TagsLive do
+  use AppWeb, :live_view
+  alias App.{DateTimeHelper, Person, Tag, Repo}
+
+  # run authentication on mount
+  on_mount(AppWeb.AuthController)
+
+  @tags_topic "tags"
+
+  @impl true
+  def mount(_params, _session, socket) do
+    if connected?(socket), do: AppWeb.Endpoint.subscribe(@tags_topic)
+
+    person_id = Person.get_person_id(socket.assigns)
+
+    tags = Tag.list_person_tags_complete(person_id)
+
+    {:ok,
+     assign(socket,
+       tags: tags,
+       lists: App.List.get_lists_for_person(person_id),
+       custom_list: false,
+       sort_column: :text,
+       sort_order: :asc
+     )}
+  end
+
+  @impl true
+  def handle_event("sort", %{"key" => key}, socket) do
+    sort_column =
+      key
+      |> String.to_atom()
+
+    sort_order =
+      if socket.assigns.sort_column == sort_column do
+        Repo.toggle_sort_order(socket.assigns.sort_order)
+      else
+        :asc
+      end
+
+    person_id = Person.get_person_id(socket.assigns)
+
+    tags = Tag.list_person_tags_complete(person_id, sort_column, sort_order)
+
+    {:noreply,
+     assign(socket,
+       tags: tags,
+       sort_column: sort_column,
+       sort_order: sort_order
+     )}
+  end
+
+  def format_date(date) do
+    DateTimeHelper.format_date(date)
+  end
+
+  def format_seconds(seconds) do
+    DateTimeHelper.format_duration(seconds)
+  end
+end