Add profiles

assets/js/app.js

@@ -1,7 +1,7 @@
 import "phoenix_html"
 import {Socket} from "phoenix"
-// import {LiveSocket} from "./phoenix_live_view"
-import {LiveSocket} from "phoenix_live_view"
+import {LiveSocket} from "./phoenix_live_view"
+// import {LiveSocket} from "phoenix_live_view"
 import topbar from "../vendor/topbar"
 
 let nowSeconds = () => Math.round(Date.now() / 1000)
@@ -54,9 +54,8 @@ Hooks.AudioPlayer = {
         this.play({sync: true})
       }
     })
-    this.handleEvent("pause", () => {
-      this.pause()
-    })
+    this.handleEvent("pause", () => this.pause())
+    this.handleEvent("stop", () => this.stop())
   },
 
   play(opts = {}){
@@ -76,10 +75,19 @@ Hooks.AudioPlayer = {
     this.player.pause()
   },
 
+  stop(){
+    clearInterval(this.progressTimer)
+    this.player.pause()
+    this.player.currentTime = 0
+    this.updateProgress()
+    this.duration.innerText = ""
+    this.currentTime.innerText = ""
+  },
+
   updateProgress(){
     if(isNaN(this.player.duration)){ return false }
     if(this.player.currentTime >= this.player.duration){
-      this.pushEvent("next-song-auto")
+      this.pushEvent("next_song_auto")
       clearInterval(this.progressTimer)
       return
     }

lib/live_beats/accounts.ex

@@ -6,6 +6,17 @@ defmodule LiveBeats.Accounts do
   alias LiveBeats.Accounts.{User, Identity}
 
   @admin_emails ["chris@chrismccord.com"]
+  @pubsub LiveBeats.PubSub
+
+  def subscribe(user_id) do
+    Phoenix.PubSub.subscribe(@pubsub, topic(user_id))
+  end
+
+  def unsubscribe(user_id) do
+    Phoenix.PubSub.unsubscribe(@pubsub, topic(user_id))
+  end
+
+  defp topic(user_id), do: "user:#{user_id}"
 
   def list_users(opts) do
     Repo.all(from u in User, limit: ^Keyword.fetch!(opts, :limit))
@@ -47,6 +58,27 @@ defmodule LiveBeats.Accounts do
   """
   def get_user!(id), do: Repo.get!(User, id)
 
+  def get_user_by!(fields), do: Repo.get_by!(User, fields)
+
+  def update_active_profile(%User{active_profile_user_id: same_id} = current_user, same_id) do
+    current_user
+  end
+
+  def update_active_profile(%User{} = current_user, profile_user_id) do
+    {1, _} =
+      Repo.update_all(from(u in User, where: u.id == ^current_user.id),
+        set: [active_profile_user_id: profile_user_id]
+      )
+
+    Phoenix.PubSub.broadcast!(
+      @pubsub,
+      topic(current_user.id),
+      {__MODULE__, :active_profile_changed, current_user, %{user_id: profile_user_id}}
+    )
+
+    %User{current_user | active_profile_user_id: profile_user_id}
+  end
+
   ## User registration
 
   @doc """

lib/live_beats/accounts/user.ex

@@ -11,6 +11,7 @@ defmodule LiveBeats.Accounts.User do
     field :confirmed_at, :naive_datetime
     field :role, :string, default: "subscriber"
     field :profile_tagline, :string
+    field :active_profile_user_id, :id
 
     has_many :identities, Identity
 

lib/live_beats/media_library.ex

@@ -6,7 +6,7 @@ defmodule LiveBeats.MediaLibrary do
   require Logger
   import Ecto.Query, warn: false
   alias LiveBeats.{Repo, MP3Stat, Accounts}
-  alias LiveBeats.MediaLibrary.{Song, Genre}
+  alias LiveBeats.MediaLibrary.{Profile, Song, Genre}
   alias Ecto.{Multi, Changeset}
 
   @pubsub LiveBeats.PubSub
@@ -16,15 +16,25 @@ defmodule LiveBeats.MediaLibrary do
   defdelegate playing?(song), to: Song
   defdelegate paused?(song), to: Song
 
-  def subscribe(%Accounts.User{} = user) do
-    Phoenix.PubSub.subscribe(@pubsub, topic(user.id))
+  def subscribe_to_profile(%Profile{} = profile, from \\ nil) do
+    Phoenix.PubSub.subscribe(@pubsub, topic(profile.user_id))
+  end
+
+  def unsubscribe_to_profile(%Profile{} = profile) do
+    Phoenix.PubSub.unsubscribe(@pubsub, topic(profile.user_id))
   end
 
   def local_filepath(filename_uuid) when is_binary(filename_uuid) do
     Path.join("priv/uploads/songs", filename_uuid)
   end
 
-  def play_song(%Song{id: id}), do: play_song(id)
+  def can_control_playback?(%Accounts.User{} = user, %Song{} = song) do
+    user.id == song.user_id
+  end
+
+  def play_song(%Song{id: id}) do
+    play_song(id)
+  end
 
   def play_song(id) do
     song = get_song!(id)
@@ -60,7 +70,14 @@ defmodule LiveBeats.MediaLibrary do
       |> Repo.transaction()
 
     elapsed = elapsed_playback(new_song)
-    Phoenix.PubSub.broadcast!(@pubsub, topic(song.user_id), {:play, song, %{elapsed: elapsed}})
+
+    Phoenix.PubSub.broadcast!(
+      @pubsub,
+      topic(song.user_id),
+      {__MODULE__, :play, song, %{elapsed: elapsed}}
+    )
+
+    new_song
   end
 
   def pause_song(%Song{} = song) do
@@ -79,36 +96,36 @@ defmodule LiveBeats.MediaLibrary do
       |> Multi.update_all(:now_paused, fn _ -> pause_query end, [])
       |> Repo.transaction()
 
-    Phoenix.PubSub.broadcast!(@pubsub, topic(song.user_id), {:pause, song})
+    Phoenix.PubSub.broadcast!(@pubsub, topic(song.user_id), {__MODULE__, :pause, song})
   end
 
-  def play_next_song_auto(user_id) do
-    song = get_current_active_song(user_id) || get_first_song(user_id)
+  def play_next_song_auto(%Profile{} = profile) do
+    song = get_current_active_song(profile) || get_first_song(profile)
 
     if song && elapsed_playback(song) >= song.duration - @auto_next_threshold_seconds do
       song
-      |> get_next_song()
+      |> get_next_song(profile)
       |> play_song()
     end
   end
 
-  def play_prev_song(user_id) do
-    song = get_current_active_song(user_id) || get_first_song(user_id)
+  def play_prev_song(%Profile{} = profile) do
+    song = get_current_active_song(profile) || get_first_song(profile)
 
-    if prev_song = get_prev_song(song) do
+    if prev_song = get_prev_song(song, profile) do
       play_song(prev_song)
     end
   end
 
-  def play_next_song(user_id) do
-    song = get_current_active_song(user_id) || get_first_song(user_id)
+  def play_next_song(%Profile{} = profile) do
+    song = get_current_active_song(profile) || get_first_song(profile)
 
-    if next_song = get_next_song(song) do
+    if next_song = get_next_song(song, profile) do
       play_song(next_song)
     end
   end
 
-  defp topic(user_id), do: "room:#{user_id}"
+  defp topic(user_id) when is_integer(user_id), do: "profile:#{user_id}"
 
   def store_mp3(%Song{} = song, tmp_path) do
     File.mkdir_p!(Path.dirname(song.mp3_filepath))
@@ -170,16 +187,28 @@ defmodule LiveBeats.MediaLibrary do
     Repo.all(Genre, order_by: [asc: :title])
   end
 
-  def list_songs(limit \\ 100) do
-    from(s in Song, limit: ^limit)
+  def list_profile_songs(%Profile{} = profile, limit \\ 100) do
+    from(s in Song, where: s.user_id == ^profile.user_id, limit: ^limit)
     |> order_by_playlist(:asc)
     |> Repo.all()
   end
 
-  def get_current_active_song(user_id) do
+  def get_current_active_song(%Profile{user_id: user_id}) do
     Repo.one(from s in Song, where: s.user_id == ^user_id and s.status in [:playing, :paused])
   end
 
+  def get_profile!(%Accounts.User{} = user) do
+    %Profile{user_id: user.id, username: user.username, tagline: user.profile_tagline}
+  end
+
+  def owns_profile?(%Accounts.User{} = user, %Profile{} = profile) do
+    user.id == profile.user_id
+  end
+
+  def owns_song?(%Profile{} = profile, %Song{} = song) do
+    profile.user_id == song.user_id
+  end
+
   def elapsed_playback(%Song{} = song) do
     cond do
       playing?(song) ->
@@ -196,7 +225,7 @@ defmodule LiveBeats.MediaLibrary do
 
   def get_song!(id), do: Repo.get!(Song, id)
 
-  def get_first_song(user_id) do
+  def get_first_song(%Profile{user_id: user_id}) do
     from(s in Song,
       where: s.user_id == ^user_id,
       limit: 1
@@ -205,7 +234,7 @@ defmodule LiveBeats.MediaLibrary do
     |> Repo.one()
   end
 
-  def get_last_song(user_id) do
+  def get_last_song(%Profile{user_id: user_id}) do
     from(s in Song,
       where: s.user_id == ^user_id,
       limit: 1
@@ -214,7 +243,7 @@ defmodule LiveBeats.MediaLibrary do
     |> Repo.one()
   end
 
-  def get_next_song(%Song{} = song) do
+  def get_next_song(%Song{} = song, %Profile{} = profile) do
     next =
       from(s in Song,
         where: s.user_id == ^song.user_id and s.id > ^song.id,
@@ -223,10 +252,10 @@ defmodule LiveBeats.MediaLibrary do
       |> order_by_playlist(:asc)
       |> Repo.one()
 
-    next || get_first_song(song.user_id)
+    next || get_first_song(profile)
   end
 
-  def get_prev_song(%Song{} = song) do
+  def get_prev_song(%Song{} = song, %Profile{} = profile) do
     prev =
       from(s in Song,
         where: s.user_id == ^song.user_id and s.id < ^song.id,
@@ -236,7 +265,7 @@ defmodule LiveBeats.MediaLibrary do
       |> order_by_playlist(:desc)
       |> Repo.one()
 
-    prev || get_last_song(song.user_id)
+    prev || get_last_song(profile)
   end
 
   def create_song(attrs \\ %{}) do

lib/live_beats/media_library/profile.ex

@@ -0,0 +1,3 @@
+defmodule LiveBeats.MediaLibrary.Profile do
+  defstruct user_id: nil, username: nil, tagline: nil
+end

lib/live_beats_web/controllers/file_controller.ex

@@ -5,9 +5,17 @@ defmodule LiveBeatsWeb.FileController do
 
   def show(conn, %{"id" => filename_uuid, "token" => token}) do
     case Phoenix.Token.verify(conn, "file", token, max_age: :timer.minutes(10)) do
-      {:ok, ^filename_uuid} -> send_file(conn, 200, MediaLibrary.local_filepath(filename_uuid))
+      {:ok, ^filename_uuid} -> do_send_file(conn, MediaLibrary.local_filepath(filename_uuid))
       {:ok, _} -> send_resp(conn, :unauthorized, "")
       {:error, _} -> send_resp(conn, :unauthorized, "")
-      end
+    end
+  end
+
+  defp do_send_file(conn, path) do
+    # accept-ranges headers required for chrome to seek via currentTime
+    conn
+    |> put_resp_header("content-type", "audio/mp3")
+    |> put_resp_header("accept-ranges", "bytes")
+    |> send_file(200, path)
   end
 end

lib/live_beats_web/live/home_live.ex

@@ -1,7 +1,7 @@
 defmodule LiveBeatsWeb.HomeLive do
   use LiveBeatsWeb, :live_view
 
-  alias LiveBeats.MediaLibrary
+  # alias LiveBeats.MediaLibrary
 
   def render(assigns) do
     ~H"""
@@ -346,6 +346,6 @@ defmodule LiveBeatsWeb.HomeLive do
   end
 
   defp fetch_songs(_socket) do
-    MediaLibrary.list_songs()
+    []
   end
 end

lib/live_beats_web/live/player_live.ex

@@ -1,7 +1,7 @@
 defmodule LiveBeatsWeb.PlayerLive do
   use LiveBeatsWeb, {:live_view, container: {:div, []}}
 
-  alias LiveBeats.MediaLibrary
+  alias LiveBeats.{Accounts, MediaLibrary}
   alias LiveBeats.MediaLibrary.Song
 
   on_mount {LiveBeatsWeb.UserAuth, :current_user}
@@ -36,14 +36,20 @@ defmodule LiveBeatsWeb.PlayerLive do
         </div>
       </div>
       <div class="bg-gray-50 text-black dark:bg-gray-900 dark:text-white px-1 sm:px-3 lg:px-1 xl:px-3 grid grid-cols-5 items-center">
-        <button type="button" class="mx-auto scale-75">
-          <svg width="24" height="24" fill="none">
-            <path d="M5 5a2 2 0 012-2h10a2 2 0 012 2v16l-7-3.5L5 21V5z" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" />
-          </svg>
-        </button>
+        <%= if @profile do %>
+          <.link
+            redirect_to={Routes.song_index_path(@socket, :index, @profile.username)}
+            class="mx-auto flex outline border-2 border-white border-opacity-20 rounded-md p-1 pr-2"
+          >
+            <span class="mt-1"><.icon name={:user_circle}/></span>
+            <p class="ml-2"><%= @profile.username %></p>
+          </.link>
+        <% else %>
+          <div class="mx-auto flex"></div>
+        <% end %>
 
         <!-- prev -->
-        <button type="button" class="sm:block xl:block mx-auto scale-75" phx-click="prev-song">
+        <button type="button" class="sm:block xl:block mx-auto scale-75" phx-click={js_prev(@own_profile?)}>
           <svg width="17" height="18">
             <path d="M0 0h2v18H0V0zM4 9l13-9v18L4 9z" fill="currentColor" />
           </svg>
@@ -51,7 +57,7 @@ defmodule LiveBeatsWeb.PlayerLive do
         <!-- /prev -->
 
         <!-- pause -->
-        <button type="button" class="mx-auto scale-75" phx-click={JS.push("play_pause") |> js_play_pause()}>
+        <button type="button" class="mx-auto scale-75" phx-click={js_play_pause(@own_profile?)}>
           <%= if @playing do %>
             <svg id="player-pause" width="50" height="50" fill="none">
               <circle class="text-gray-300 dark:text-gray-500" cx="25" cy="25" r="24" stroke="currentColor" stroke-width="1.5" />
@@ -67,7 +73,7 @@ defmodule LiveBeatsWeb.PlayerLive do
         <!-- /pause -->
 
         <!-- next -->
-        <button type="button" class="mx-auto scale-75" phx-click="next-song">
+        <button type="button" class="mx-auto scale-75" phx-click={js_next(@own_profile?)}>
           <svg width="17" height="18" viewBox="0 0 17 18" fill="none">
             <path d="M17 0H15V18H17V0Z" fill="currentColor" />
             <path d="M13 9L0 0V18L13 9Z" fill="currentColor" />
@@ -85,84 +91,153 @@ defmodule LiveBeatsWeb.PlayerLive do
         Your browser needs a click event to enable playback
         <:confirm>Listen Now</:confirm>
       </.modal>
+
+      <%= if @profile do %>
+        <.modal id="not-authorized" on_confirm={hide_modal("not-authorized")}>
+          <:title>You can't do that</:title>
+
+          Only <%= @profile.username %> can control playback
+
+          <:confirm>Ok</:confirm>
+        </.modal>
+      <% end %>
     </div>
     <!-- /player -->
     """
   end
 
   def mount(_parmas, _session, socket) do
-    if connected?(socket) and socket.assigns.current_user do
-      MediaLibrary.subscribe(socket.assigns.current_user)
-      send(self(), :play_current)
+    %{current_user: current_user} = socket.assigns
+
+    if connected?(socket) do
+      Accounts.subscribe(current_user.id)
     end
 
     socket =
-      assign(socket,
+      socket
+      |> assign(
         song: nil,
         playing: false,
-        current_user_id: socket.assigns.current_user.id,
-        # todo use actual room user id
-        room_user_id: socket.assigns.current_user.id
+        profile: nil,
+        current_user_id: current_user.id,
+        own_profile?: false
       )
+      |> switch_profile(current_user.active_profile_user_id || current_user.id)
 
-    {:ok, socket, layout: false, temporary_assigns: [current_user: nil]}
+    {:ok, socket, layout: false, temporary_assigns: []}
+  end
+
+  defp switch_profile(socket, nil) do
+    current_user = Accounts.update_active_profile(socket.assigns.current_user, nil)
+
+    socket
+    |> assign(current_user: current_user)
+    |> assign_profile(nil)
+  end
+
+  defp switch_profile(socket, profile_user_id) do
+    profile = get_profile(profile_user_id)
+
+    if connected?(socket) and profile do
+      current_user = Accounts.update_active_profile(socket.assigns.current_user, profile.user_id)
+
+      send(self(), :play_current)
+
+      socket
+      |> assign(current_user: current_user)
+      |> assign_profile(profile)
+    else
+      assign_profile(socket, nil)
+    end
+  end
+
+  defp assign_profile(socket, profile) do
+    if prev_profile = connected?(socket) && socket.assigns.profile do
+      MediaLibrary.unsubscribe_to_profile(prev_profile)
+    end
+    if profile, do: MediaLibrary.subscribe_to_profile(profile)
+
+    assign(socket,
+      profile: profile,
+      own_profile?: profile && MediaLibrary.owns_profile?(socket.assigns.current_user, profile)
+    )
+  end
+
+  defp assign_inactive_profile(socket, %Song{} = song) do
+    if socket.assigns.profile && MediaLibrary.owns_song?(socket.assigns.profile, song) do
+      socket
+    else
+      switch_profile(socket, song.user_id)
+    end
   end
 
   def handle_event("play_pause", _, socket) do
-    %{song: song, playing: playing} = socket.assigns
+    %{song: song, playing: playing, current_user: current_user} = socket.assigns
+    song = MediaLibrary.get_song!(song.id)
 
     cond do
-      song && playing ->
+      song && playing and MediaLibrary.can_control_playback?(current_user, song) ->
         MediaLibrary.pause_song(song)
         {:noreply, assign(socket, playing: false)}
 
-      song ->
+      song && MediaLibrary.can_control_playback?(current_user, song) ->
         MediaLibrary.play_song(song)
         {:noreply, assign(socket, playing: true)}
 
       true ->
-        {:noreply, assign(socket, playing: false)}
+        {:noreply, socket}
     end
   end
 
-  def handle_event("next-song", _, socket) do
-    if socket.assigns.song do
-      MediaLibrary.play_next_song(socket.assigns.song.user_id)
+  def handle_event("switch_profile", %{"user_id" => user_id}, socket) do
+    {:noreply, switch_profile(socket, user_id)}
+  end
+
+  def handle_event("next_song", _, socket) do
+    %{song: song, current_user: current_user} = socket.assigns
+
+    if song && MediaLibrary.can_control_playback?(current_user, song) do
+      MediaLibrary.play_next_song(socket.assigns.profile)
     end
+
     {:noreply, socket}
   end
 
-  def handle_event("prev-song", _, socket) do
-    if socket.assigns.song do
-      MediaLibrary.play_prev_song(socket.assigns.song.user_id)
+  def handle_event("prev_song", _, socket) do
+    %{song: song, current_user: current_user} = socket.assigns
+
+    if song && MediaLibrary.can_control_playback?(current_user, song) do
+      MediaLibrary.play_prev_song(socket.assigns.profile)
     end
+
     {:noreply, socket}
   end
 
-  def handle_event("next-song-auto", _, socket) do
+  def handle_event("next_song_auto", _, socket) do
     if socket.assigns.song do
-      MediaLibrary.play_next_song_auto(socket.assigns.song.user_id)
+      MediaLibrary.play_next_song_auto(socket.assigns.profile)
     end
+
     {:noreply, socket}
   end
 
+  def handle_info({Accounts, :active_profile_changed, _cur_user, %{user_id: user_id}}, socket) do
+    if user_id do
+      {:noreply, assign(socket, profile: get_profile(user_id))}
+    else
+      {:noreply, socket |> assign_profile(nil) |> stop_song()}
+    end
+  end
+
   def handle_info(:play_current, socket) do
-    # we raced a pubsub, noop
-    if socket.assigns.song do
-      {:noreply, socket}
-    else
-      {:noreply, play_current_song(socket)}
-    end
+    {:noreply, play_current_song(socket)}
   end
 
-  def handle_info({:pause, _}, socket) do
-    {:noreply,
-     socket
-     |> push_event("pause", %{})
-     |> assign(playing: false)}
+  def handle_info({MediaLibrary, :pause, _}, socket) do
+    {:noreply, push_pause(socket)}
   end
 
-  def handle_info({:play, %Song{} = song, %{elapsed: elapsed}}, socket) do
+  def handle_info({MediaLibrary, :play, %Song{} = song, %{elapsed: elapsed}}, socket) do
     {:noreply, play_song(socket, song, elapsed)}
   end
 
@@ -170,18 +245,17 @@ defmodule LiveBeatsWeb.PlayerLive do
     socket
     |> push_play(song, elapsed)
     |> assign(song: song, playing: true)
+    |> assign_inactive_profile(song)
   end
 
-  defp js_play_pause(%JS{} = js) do
-    JS.dispatch(js, "js:play_pause", to: "#audio-player")
-  end
-
-  defp js_listen_now(js \\ %JS{}) do
-    JS.dispatch(js, "js:listen_now", to: "#audio-player")
+  defp stop_song(socket) do
+    socket
+    |> push_event("stop", %{})
+    |> assign(song: nil, playing: false)
   end
 
   defp play_current_song(socket) do
-    song = MediaLibrary.get_current_active_song(socket.assigns.room_user_id)
+    song = MediaLibrary.get_current_active_song(socket.assigns.profile)
 
     cond do
       song && MediaLibrary.playing?(song) ->
@@ -197,6 +271,7 @@ defmodule LiveBeatsWeb.PlayerLive do
 
   defp push_play(socket, %Song{} = song, elapsed) do
     token = Phoenix.Token.sign(socket.endpoint, "file", song.mp3_filename)
+
     push_event(socket, "play", %{
       paused: Song.paused?(song),
       elapsed: elapsed,
@@ -204,4 +279,43 @@ defmodule LiveBeatsWeb.PlayerLive do
       url: song.mp3_url
     })
   end
+
+  defp push_pause(socket) do
+    socket
+    |> push_event("pause", %{})
+    |> assign(playing: false)
+  end
+
+  defp js_play_pause(own_profile?) do
+    if own_profile? do
+      JS.push("play_pause")
+      |> JS.dispatch("js:play_pause", to: "#audio-player")
+    else
+      show_modal("not-authorized")
+    end
+  end
+
+  defp js_prev(own_profile?) do
+    if own_profile? do
+      JS.push("prev_song")
+    else
+      show_modal("not-authorized")
+    end
+  end
+
+  defp js_next(own_profile?) do
+    if own_profile? do
+      JS.push("next_song")
+    else
+      show_modal("not-authorized")
+    end
+  end
+
+  defp js_listen_now(js \\ %JS{}) do
+    JS.dispatch(js, "js:listen_now", to: "#audio-player")
+  end
+
+  defp get_profile(user_id) do
+    user_id && Accounts.get_user!(user_id) |> MediaLibrary.get_profile!()
+  end
 end

lib/live_beats_web/live/song_live/index.ex

@@ -1,17 +1,34 @@
 defmodule LiveBeatsWeb.SongLive.Index do
   use LiveBeatsWeb, :live_view
 
-  alias LiveBeats.{MediaLibrary, MP3Stat}
+  alias LiveBeats.{Accounts, MediaLibrary, MP3Stat}
   alias LiveBeatsWeb.LayoutComponent
   alias LiveBeatsWeb.SongLive.{SongRowComponent, UploadFormComponent}
 
   def render(assigns) do
     ~H"""
     <.title_bar>
-      Listing Songs
+      <%= @profile.tagline %> <%= if @owns_profile? do %>(you)<% end %>
 
       <:actions>
-        <.button primary patch_to={Routes.song_index_path(@socket, :new)}>Upload Songs</.button>
+        <%= if @active_profile_id == @profile.user_id do %>
+          <.button primary
+            phx-click={JS.push("switch_profile", value: %{user_id: nil}, target: "#player", loading: "#player")}
+          >
+            <.icon name={:stop}/><span class="ml-2">Stop Listening</span>
+          </.button>
+        <% else %>
+          <.button primary
+            phx-click={JS.push("switch_profile", value: %{user_id: @profile.user_id}, target: "#player", loading: "#player")}
+          >
+            <.icon name={:play}/><span class="ml-2">Listen</span>
+          </.button>
+        <% end %>
+        <%= if @owns_profile? do %>
+          <.button primary patch_to={Routes.song_index_path(@socket, :new)}>
+            <.icon name={:upload}/><span class="ml-2">Upload Songs</span>
+          </.button>
+        <% end %>
       </:actions>
     </.title_bar>
 
@@ -45,20 +62,35 @@ defmodule LiveBeatsWeb.SongLive.Index do
     """
   end
 
-  def mount(_params, _session, socket) do
+  def mount(%{"profile_username" => profile_username}, _session, socket) do
     %{current_user: current_user} = socket.assigns
 
+    profile =
+      Accounts.get_user_by!(username: profile_username)
+      |> MediaLibrary.get_profile!()
+
     if connected?(socket) do
-      MediaLibrary.subscribe(current_user)
+      MediaLibrary.subscribe_to_profile(profile, __MODULE__)
+      Accounts.subscribe(current_user.id)
     end
 
-    active_id =
-      if song = MediaLibrary.get_current_active_song(current_user.id) do
+    active_song_id =
+      if song = MediaLibrary.get_current_active_song(profile) do
         SongRowComponent.send_status(song.id, song.status)
         song.id
       end
 
-    {:ok, assign(socket, songs: list_songs(), active_id: active_id), temporary_assigns: [songs: []]}
+    socket =
+      socket
+      |> assign(
+        active_song_id: active_song_id,
+        active_profile_id: current_user.active_profile_user_id,
+        profile: profile,
+        owns_profile?: MediaLibrary.owns_profile?(current_user, profile)
+      )
+      |> list_songs()
+
+    {:ok, socket, temporary_assigns: [songs: []]}
   end
 
   def handle_params(params, _url, socket) do
@@ -67,10 +99,17 @@ defmodule LiveBeatsWeb.SongLive.Index do
 
   def handle_event("play_or_pause", %{"id" => id}, socket) do
     song = MediaLibrary.get_song!(id)
-    if socket.assigns.active_id == id and MediaLibrary.playing?(song) do
-      MediaLibrary.pause_song(song)
-    else
-      MediaLibrary.play_song(id)
+    can_playback? = MediaLibrary.can_control_playback?(socket.assigns.current_user, song)
+
+    cond do
+      can_playback? and socket.assigns.active_song_id == id and MediaLibrary.playing?(song) ->
+        MediaLibrary.pause_song(song)
+
+      can_playback? ->
+        MediaLibrary.play_song(id)
+
+      true ->
+        :noop
     end
 
     {:noreply, socket}
@@ -78,23 +117,29 @@ defmodule LiveBeatsWeb.SongLive.Index do
 
   def handle_event("delete", %{"id" => id}, socket) do
     song = MediaLibrary.get_song!(id)
-    {:ok, _} = MediaLibrary.delete_song(song)
+    if song.user_id == socket.assigns.current_user.id do
+      {:ok, _} = MediaLibrary.delete_song(song)
+    end
     {:noreply, socket}
   end
 
-  def handle_info({:play, %MediaLibrary.Song{} = song, _meta}, socket) do
+  def handle_info({Accounts, :active_profile_changed, _cur_user, %{user_id: user_id}}, socket) do
+    {:noreply, assign(socket, active_profile_id: user_id)}
+  end
+
+  def handle_info({MediaLibrary, :play, %MediaLibrary.Song{} = song, _meta}, socket) do
     {:noreply, play_song(socket, song)}
   end
 
-  def handle_info({:pause, %MediaLibrary.Song{} = song}, socket) do
+  def handle_info({MediaLibrary, :pause, %MediaLibrary.Song{} = song}, socket) do
     {:noreply, pause_song(socket, song.id)}
   end
 
   defp stop_song(socket, song_id) do
     SongRowComponent.send_status(song_id, :stopped)
 
-    if socket.assigns.active_id == song_id do
-      assign(socket, :active_id, nil)
+    if socket.assigns.active_song_id == song_id do
+      assign(socket, :active_song_id, nil)
     else
       socket
     end
@@ -106,23 +151,23 @@ defmodule LiveBeatsWeb.SongLive.Index do
   end
 
   defp play_song(socket, %MediaLibrary.Song{} = song) do
-    %{active_id: active_id} = socket.assigns
+    %{active_song_id: active_song_id} = socket.assigns
 
     cond do
-      active_id == song.id ->
+      active_song_id == song.id ->
         SongRowComponent.send_status(song.id, :playing)
         socket
 
-      active_id ->
+      active_song_id ->
         SongRowComponent.send_status(song.id, :playing)
 
         socket
-        |> stop_song(active_id)
-        |> assign(active_id: song.id)
+        |> stop_song(active_song_id)
+        |> assign(active_song_id: song.id)
 
       true ->
         SongRowComponent.send_status(song.id, :playing)
-        assign(socket, active_id: song.id)
+        assign(socket, active_song_id: song.id)
     end
   end
 
@@ -155,7 +200,7 @@ defmodule LiveBeatsWeb.SongLive.Index do
     |> assign(:song, nil)
   end
 
-  defp list_songs do
-    MediaLibrary.list_songs(50)
+  defp list_songs(socket) do
+    assign(socket, songs: MediaLibrary.list_profile_songs(socket.assigns.profile, 50))
   end
 end

lib/live_beats_web/router.ex

@@ -56,7 +56,7 @@ defmodule LiveBeatsWeb.Router do
     live_session :authenticated,
       on_mount: [{LiveBeatsWeb.UserAuth, :ensure_authenticated}, LiveBeatsWeb.Nav] do
       live "/songs/new", SongLive.Index, :new
-      live "/:user_id", SongLive.Index, :index
+      live "/:profile_username", SongLive.Index, :index
       live "/profile/settings", SettingsLive, :edit
     end
   end

priv/repo/migrations/20210905021010_create_user_auth.exs

@@ -11,6 +11,7 @@ defmodule LiveBeats.Repo.Migrations.CreateUserAuth do
       add :role, :string, null: false
       add :confirmed_at, :naive_datetime
       add :profile_tagline, :string
+      add :active_profile_user_id, references(:users, on_delete: :nilify_all)
 
       timestamps()
     end