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profile_live.ex
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profile_live.ex
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defmodule LiveBeatsWeb.ProfileLive do
use LiveBeatsWeb, :live_view
alias LiveBeats.{Accounts, MediaLibrary, MP3Stat}
alias LiveBeatsWeb.Presence
alias LiveBeatsWeb.ProfileLive.{UploadFormComponent}
@max_presences 20
def render(assigns) do
~H"""
<.modal
id="upload"
patch={profile_path(@current_user)}
on_cancel={JS.push("cancel", target: "#song-form")}
phx-mounted={@live_action == :new && show_modal("upload")}
>
<:title>Add Music</:title>
<.live_component
id="upload-form"
module={UploadFormComponent}
current_user={@current_user}
on_complete={hide_modal("upload")}
/>
<:confirm type="submit" form="song-form">Save</:confirm>
<:cancel>Cancel</:cancel>
</.modal>
<.title_bar>
<div>
<div class="block">
<%= @profile.tagline %>
<%= if @owns_profile? do %>
(you)
<% end %>
<span>
– <%= ngettext("%{count} song", "%{count} songs", @songs_count) %>
</span>
</div>
<.link href={@profile.external_homepage_url} target="_blank" class="text-sm text-gray-600">
<.icon name={:code} /> <span class=""><%= url_text(@profile.external_homepage_url) %></span>
</.link>
</div>
<:actions>
<%= if @active_profile_id == @profile.user_id do %>
<.button
:if={@songs_count > 0}
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
:if={@songs_count > 0}
primary
phx-click={
JS.push("switch_profile",
value: %{user_id: to_string(@profile.user_id)},
target: "#player",
loading: "#player"
)
}
>
<.icon name={:play} /><span class="ml-2">Listen</span>
</.button>
<% end %>
<.button
:if={@owns_profile?}
id="upload-btn"
primary
phx-click={show_modal("upload") |> JS.patch(profile_upload_path(@current_user))}
>
<.icon name={:upload} /><span class="ml-2">Upload Songs</span>
</.button>
</:actions>
</.title_bar>
<Presence.listening_now
presences={@presences}
presence_ids={@presence_ids}
total_count={@presences_count}
/>
<div id={"trascript-#{@active_song_id}"} phx-update="stream" class="mt-10 px-6">
<div :for={{id, segment} <- @streams.transcript_segments} id={id}>
<span class="text-gray-400">[<%= LiveBeats.MP3Stat.to_mmss(segment.ss) %>]</span>
<%= segment.text %>
</div>
</div>
<div :if={@owns_profile?} id="dialogs" phx-update="stream">
<.modal
:for={{_id, song} <- @streams.songs}
:if={song.id}
id={"delete-modal-#{song.id}"}
on_confirm={
JS.push("delete", value: %{id: to_string(song.id)})
|> hide_modal("delete-modal-#{song.id}")
|> focus_closest("#song-#{song.id}")
|> hide("#songs-#{song.id}")
}
on_cancel={focus("#delete-modal-#{song.id}", "#delete-song-#{song.id}")}
>
Are you sure you want to delete "<%= song.title %>"?
<:cancel>Cancel</:cancel>
<:confirm>Delete</:confirm>
</.modal>
</div>
<div :if={@songs_count == 0} class="my-2 text-center">
<.icon name={:music_note} class="mx-auto h-12 w-12 text-gray-400" />
<h3 class="mt-2 text-sm font-semibold text-gray-900">No music</h3>
<p class="mt-1 text-sm text-gray-500">Get started by uploading a new playlist</p>
<div class="mt-6">
<.button
primary
phx-click={show_modal("upload") |> JS.patch(profile_upload_path(@current_user))}
>
<.icon name={:upload} />
<span class="ml-2">Upload songs</span>
</.button>
</div>
</div>
<div :if={@songs_count > 0}>
<.table
id="songs"
rows={@streams.songs}
row_id={fn {id, _song} -> id end}
row_click={
@owns_profile? &&
fn {id, song} ->
JS.push("play_or_pause",
loading: "#songs tbody, ##{id}",
value: %{id: to_string(song.id)}
)
end
}
streamable
sortable_drop={@owns_profile? && "row_dropped"}
>
<:col
:let={{_id, song}}
label="Title"
class!={[
"px-6 py-3 text-sm font-medium text-gray-900 min-w-[200px] md:min-w-[20rem]",
@owns_profile? && "cursor-pointer"
]}
>
<span :if={song.status == :playing} class="flex pt-1 relative mr-2 w-4">
<span class="w-3 h-3 animate-ping bg-purple-400 rounded-full absolute"></span>
<.icon name={:volume_up} class="h-5 w-5 -mt-1 -ml-1" aria-label="Playing" role="button" />
</span>
<span :if={song.status == :paused} class="flex pt-1 relative mr-2 w-4">
<.icon
name={:volume_up}
class="h-5 w-5 -mt-1 -ml-1 text-gray-400"
aria-label="Paused"
role="button"
/>
</span>
<span :if={song.status == :stopped} class="flex relative w-6 -translate-x-1">
<.icon
:if={@owns_profile?}
name={:play}
class="h-5 w-5 text-gray-400"
aria-label="Play"
role="button"
/>
</span>
<%= song.title %>
</:col>
<:col :let={{_id, song}} label="Artist"><%= song.artist %></:col>
<:col
:let={{_id, song}}
label="Attribution"
class="max-w-5xl break-words text-gray-600 font-light"
>
<%= song.attribution %>
</:col>
<:col :let={{_id, song}} label="Duration">
<%= MP3Stat.to_mmss(song.duration) %>
</:col>
<:col :let={{_id, song}} :if={@owns_profile?} label="">
<.link
id={"delete-song-#{song.id}"}
phx-click={show_modal("delete-modal-#{song.id}")}
class="inline-flex items-center px-3 py-2 text-sm leading-4 font-medium"
>
<.icon name={:trash} class="-ml-0.5 mr-2 h-4 w-4" /> Delete
</.link>
</:col>
</.table>
</div>
"""
end
def mount(%{"profile_username" => profile_username}, _session, socket) do
%{current_user: current_user} = socket.assigns
profile_user =
if current_user.username == profile_username do
current_user
else
Accounts.get_user_by!(username: profile_username)
end
profile = MediaLibrary.get_profile!(profile_user)
if connected?(socket) do
MediaLibrary.subscribe_to_profile(profile)
Accounts.subscribe(current_user.id)
Presence.subscribe(profile)
end
socket =
socket
|> assign(
active_song_id: nil,
active_profile_id: current_user.active_profile_user_id,
profile: profile,
owns_profile?: MediaLibrary.owns_profile?(current_user, profile)
)
|> stream_configure(:transcript_segments, dom_id: &"ss-#{&1.ss}")
|> stream(:transcript_segments, [])
|> stream_songs()
|> assign_presences()
{:ok, socket, temporary_assigns: [presences: %{}]}
end
def stream_songs(socket) do
%{profile: profile} = socket.assigns
songs = MediaLibrary.list_profile_songs(profile, 50)
active_song = Enum.find(songs, fn song -> song.status in [:playing, :paused] end)
segments = if active_song, do: active_song.transcript.segments, else: []
socket
|> assign(
songs: songs,
active_song: active_song,
active_song_id: active_song && active_song.id,
segments: segments,
songs_count: Enum.count(songs)
)
|> stream(:songs, songs, reset: true)
end
def handle_params(params, _url, socket) do
{:noreply, socket |> apply_action(socket.assigns.live_action, params)}
end
def handle_event("play_or_pause", %{"id" => id}, socket) do
%{active_song_id: active_song_id} = socket.assigns
song = MediaLibrary.get_song!(id)
can_playback? = MediaLibrary.can_control_playback?(socket.assigns.current_user, song)
cond do
can_playback? and active_song_id == song.id and MediaLibrary.playing?(song) ->
MediaLibrary.pause_song(song)
receive do
{MediaLibrary, %MediaLibrary.Events.Pause{song: song}} ->
{:noreply, pause_song(socket, song)}
end
can_playback? ->
MediaLibrary.play_song(id)
receive do
{MediaLibrary, %MediaLibrary.Events.Play{song: song}} ->
{:noreply, play_song(socket, song)}
end
true ->
{:noreply, socket}
end
end
def handle_event("delete", %{"id" => id}, socket) do
song = MediaLibrary.get_song!(id)
if song.user_id == socket.assigns.current_user.id do
:ok = MediaLibrary.delete_song(song)
end
if song.id == socket.assigns.active_song_id do
{:noreply, assign(socket, :active_song_id, nil)}
else
{:noreply, socket}
end
end
def handle_event("row_dropped", %{"id" => dom_id, "old" => old_idx, "new" => new_idx}, socket) do
"songs-" <> id = dom_id
song = MediaLibrary.get_song!(id)
if song.user_id == socket.assigns.current_user.id and song.position == old_idx do
:ok = MediaLibrary.update_song_position(song, new_idx)
{:noreply, socket}
else
{:noreply, socket}
end
end
def handle_info({LiveBeatsWeb.Presence, %{user_joined: presence}}, socket) do
{:noreply, assign_presence(socket, presence)}
end
def handle_info({LiveBeatsWeb.Presence, %{user_left: presence}}, socket) do
%{user: user} = presence
if presence.metas == [] do
{:noreply, remove_presence(socket, user)}
else
{:noreply, socket}
end
end
def handle_info({Accounts, %Accounts.Events.ActiveProfileChanged{} = event}, socket) do
{:noreply, assign(socket, active_profile_id: event.new_profile_user_id)}
end
def handle_info({MediaLibrary, %MediaLibrary.Events.PublicProfileUpdated{} = update}, socket) do
{:noreply,
socket
|> assign(profile: update.profile)
|> push_patch(to: profile_path(update.profile))}
end
def handle_info({MediaLibrary, %MediaLibrary.Events.NewPosition{song: song}}, socket) do
{:noreply,
socket
|> stream_delete(:songs, song)
|> stream_insert(:songs, song, at: song.position)}
end
def handle_info({MediaLibrary, %MediaLibrary.Events.Play{song: song}}, socket) do
{:noreply, play_song(socket, song)}
end
def handle_info({MediaLibrary, %MediaLibrary.Events.Pause{song: song}}, socket) do
{:noreply, pause_song(socket, song)}
end
def handle_info(
{MediaLibrary, {%MediaLibrary.Song.Transcript.Segment{} = seg, song_id}},
socket
) do
if socket.assigns.active_song_id == song_id do
{:noreply, stream_insert(socket, :transcript_segments, seg)}
else
{:noreply, socket}
end
end
def handle_info({MediaLibrary, %MediaLibrary.Events.SongsImported{songs: songs}}, socket) do
%{current_user: current_user, active_song_id: active_song_id} = socket.assigns
first = hd(songs)
if !active_song_id && MediaLibrary.can_control_playback?(current_user, first) do
MediaLibrary.play_song(first)
end
{:noreply,
Enum.reduce(songs, socket, fn song, acc ->
acc
|> update(:songs_count, &(&1 + 1))
|> stream_insert(:songs, song)
end)}
end
def handle_info({MediaLibrary, %MediaLibrary.Events.SongDeleted{song: song}}, socket) do
{:noreply,
socket
|> update(:songs_count, &(&1 - 1))
|> stream_delete(:songs, song)}
end
def handle_info({MediaLibrary, {:ping, ping}}, socket) do
%{user: user, rtt: rtt, region: region} = ping
send_update(Presence.BadgeComponent,
id: user.id,
action: {:ping, %{user: user, ping: rtt, region: region}}
)
{:noreply, socket}
end
def handle_info({MediaLibrary, _}, socket), do: {:noreply, socket}
def handle_info({Accounts, _}, socket), do: {:noreply, socket}
defp stop_song(socket, song_id) do
song = MediaLibrary.get_song!(song_id)
socket =
if socket.assigns.active_song_id == song_id do
assign(socket, :active_song_id, nil)
else
socket
end
stream_insert(socket, :songs, %MediaLibrary.Song{song | status: :stopped})
end
defp pause_song(socket, %MediaLibrary.Song{} = song) do
stream_insert(socket, :songs, %MediaLibrary.Song{song | status: :paused})
end
defp play_song(socket, %MediaLibrary.Song{} = song) do
%{active_song_id: active_song_id} = socket.assigns
song = %MediaLibrary.Song{song | status: :playing}
cond do
active_song_id == song.id ->
stream_insert(socket, :songs, song)
active_song_id ->
socket
|> stop_song(active_song_id)
|> stream_insert(:songs, song)
|> assign(active_song_id: song.id)
true ->
socket
|> stream_insert(:songs, song)
|> assign(active_song_id: song.id)
end
end
defp apply_action(socket, :show, _params) do
socket
|> assign(:page_title, "Listing Songs")
|> assign(:song, nil)
end
defp apply_action(socket, :new, _params) do
if socket.assigns.owns_profile? do
assign(socket, :page_title, "Add Music")
else
socket
|> put_flash(:error, "You can't do that")
|> redirect(to: profile_path(socket.assigns.current_user))
end
end
defp assign_presences(socket) do
%{profile: profile} = socket.assigns
socket = assign(socket, presences_count: 0, presences: %{}, presence_ids: %{})
if profile do
profile
|> LiveBeatsWeb.Presence.list_profile_users()
|> Enum.reduce(socket, fn {_, presence}, acc -> assign_presence(acc, presence) end)
else
socket
end
end
defp assign_presence(socket, presence) do
%{user: user} = presence
%{presence_ids: presence_ids} = socket.assigns
cond do
Map.has_key?(presence_ids, user.id) ->
socket
Enum.count(presence_ids) < @max_presences ->
socket
|> update(:presences, &Map.put(&1, user.id, user))
|> update(:presence_ids, &Map.put(&1, user.id, System.system_time()))
|> update(:presences_count, &(&1 + 1))
true ->
update(socket, :presences_count, &(&1 + 1))
end
end
defp remove_presence(socket, user) do
socket
|> update(:presences, &Map.delete(&1, user.id))
|> update(:presence_ids, &Map.delete(&1, user.id))
|> update(:presences_count, &(&1 - 1))
end
defp url_text(nil), do: ""
defp url_text(url_str) do
uri = URI.parse(url_str)
uri.host <> uri.path
end
end