From 4d1859b331f2ddb6079dd4d64084192b1a300918 Mon Sep 17 00:00:00 2001
From: Ethan Girouard <ethan@girouard.com>
Date: Tue, 6 May 2025 01:34:53 +0000
Subject: [PATCH] Add playlist page

---
 src/app.rs            |   2 +
 src/pages/mod.rs      |   1 +
 src/pages/playlist.rs | 218 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 221 insertions(+)
 create mode 100644 src/pages/playlist.rs

diff --git a/src/app.rs b/src/app.rs
index c985c3d..c56c1bd 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -6,6 +6,7 @@ use crate::pages::album::*;
 use crate::pages::artist::*;
 use crate::pages::dashboard::*;
 use crate::pages::login::*;
+use crate::pages::playlist::*;
 use crate::pages::profile::*;
 use crate::pages::search::*;
 use crate::pages::signup::*;
@@ -73,6 +74,7 @@ pub fn App() -> impl IntoView {
                         <Route path=path!("album/:id") view=AlbumPage />
                         <Route path=path!("artist/:id") view=ArtistPage />
                         <Route path=path!("song/:id") view=SongPage />
+                        <Route path=path!("playlist/:id") view=PlaylistPage />
                     </ParentRoute>
                     <Route path=path!("/login") view=Login />
                     <Route path=path!("/signup") view=Signup />
diff --git a/src/pages/mod.rs b/src/pages/mod.rs
index dc0b635..2cb0ec4 100644
--- a/src/pages/mod.rs
+++ b/src/pages/mod.rs
@@ -2,6 +2,7 @@ pub mod album;
 pub mod artist;
 pub mod dashboard;
 pub mod login;
+pub mod playlist;
 pub mod profile;
 pub mod search;
 pub mod signup;
diff --git a/src/pages/playlist.rs b/src/pages/playlist.rs
new file mode 100644
index 0000000..dc3fc7b
--- /dev/null
+++ b/src/pages/playlist.rs
@@ -0,0 +1,218 @@
+use crate::api::playlists::*;
+use crate::components::error::*;
+use crate::components::loading::*;
+use crate::components::song_list::*;
+use crate::models::backend;
+use crate::util::state::GlobalState;
+use leptos::either::*;
+use leptos::ev::{keydown, KeyboardEvent};
+use leptos::html::{Button, Input};
+use leptos::logging::*;
+use leptos::prelude::*;
+use leptos::task::spawn_local;
+use leptos_icons::*;
+use leptos_router::components::Form;
+use leptos_router::hooks::{use_navigate, use_params_map};
+use leptos_use::{on_click_outside, use_event_listener};
+use std::sync::Arc;
+use web_sys::Response;
+
+#[component]
+pub fn PlaylistPage() -> impl IntoView {
+    let params = use_params_map();
+
+    view! {
+        {move || params.with(|params| {
+            match params.get("id").map(|id| id.parse::<i32>()) {
+                Some(Ok(id)) => {
+                    Either::Left(view! { <PlaylistIdPage id /> })
+                },
+                Some(Err(e)) => {
+                    Either::Right(view! {
+                        <Error<String>
+                            title="Invalid Playlist ID"
+                            error=e.to_string()
+                        />
+                    })
+                },
+                None => {
+                    Either::Right(view! {
+                        <Error<String>
+                            title="No Playlist ID"
+                            message="You must specify a playlist ID to view its page."
+                        />
+                    })
+                }
+            }
+        })}
+    }
+}
+
+#[component]
+fn PlaylistIdPage(#[prop(into)] id: Signal<i32>) -> impl IntoView {
+    let playlist_songs = Resource::new(id, get_playlist_songs);
+
+    view! {
+        <Transition
+            fallback=move || view! { <LoadingPage /> }
+        >
+            {move || GlobalState::playlists().get().map(|playlists| {
+                let playlist = playlists.map(|playlists| {
+                    playlists.into_iter().find(|playlist| playlist.id == id.get())
+                });
+
+                match playlist {
+                    Ok(Some(playlist)) => {
+                        Either::Left(view! { <PlaylistInfo playlist /> })
+                    },
+                    Ok(None) => {
+                        Either::Right(view! {
+                            <Error<String>
+                                title="Playlist not found"
+                                message="The playlist you are looking for does not exist."
+                            />
+                        })
+                    }
+                    Err(e) => Either::Right(view! {
+                        <Error<String>
+                            title="Error loading playlist"
+                            error=e.to_string()
+                        />
+                    }),
+                }
+            })}
+            {move || playlist_songs.get().map(|playlist_songs| {
+                match playlist_songs {
+                    Ok(playlist_songs) => {
+                        Either::Left(view! { <SongList songs=playlist_songs /> })
+                    },
+                    Err(e) => Either::Right(view! {
+                        <Error<String>
+                            title="Error loading playlist songs"
+                            error=e.to_string()
+                        />
+                    }),
+                }
+            })}
+        </Transition>
+    }
+}
+
+#[component]
+fn PlaylistInfo(playlist: backend::Playlist) -> impl IntoView {
+    let on_img_edit_response = Arc::new(move |response: &Response| {
+        if response.ok() {
+            // TODO inform browser that image has changed
+        } else {
+            error!("Error editing playlist image: {}", response.status());
+            // TODO toast
+        }
+    });
+
+    let playing = RwSignal::new(false);
+
+    let editing_name = RwSignal::new(false);
+    let playlist_name = RwSignal::new(playlist.name.clone());
+
+    let name_edit_input = NodeRef::<Input>::new();
+
+    let edit_complete = move || {
+        editing_name.set(false);
+
+        spawn_local(async move {
+            if let Err(e) = rename_playlist(playlist.id, playlist_name.get_untracked()).await {
+                error!("Error editing playlist name: {}", e);
+                // TODO toast
+            } else {
+                GlobalState::playlists().refetch();
+            }
+        });
+    };
+
+    let _edit_close_handler = on_click_outside(name_edit_input, move |_| edit_complete());
+
+    let _edit_enter_handler =
+        use_event_listener(name_edit_input, keydown, move |event: KeyboardEvent| {
+            if event.key() == "Enter" {
+                event.prevent_default();
+                edit_complete();
+            }
+        });
+
+    let on_play = move |_| {
+        playing.set(!playing.get());
+    };
+
+    let delete_btn = NodeRef::<Button>::new();
+
+    let confirm_delete = RwSignal::new(false);
+
+    let on_delete = move |_| {
+        if confirm_delete.get_untracked() {
+            spawn_local(async move {
+                if let Err(e) = delete_playlist(playlist.id).await {
+                    error!("Error deleting playlist: {}", e);
+                } else {
+                    GlobalState::playlists().refetch();
+                    use_navigate()("/", Default::default());
+                }
+            });
+        } else {
+            confirm_delete.set(true);
+        }
+    };
+
+    let _delete_escape_handler = on_click_outside(delete_btn, move |_| {
+        confirm_delete.set(false);
+    });
+
+    let on_edit = move |_| {
+        editing_name.set(true);
+
+        name_edit_input.on_load(move |input| {
+            input.select();
+        });
+    };
+
+    view! {
+        <div class="flex items-center">
+            <div class="group relative">
+                <img class="w-70 h-70 p-5 rounded-4xl group-hover:brightness-45 transition-all"
+                    src={format!("/assets/images/playlist/{}.webp", playlist.id)} onerror={crate::util::img_fallback::MUSIC_IMG_FALLBACK} />
+                <Form action="/api/playlists/edit_image" method="POST" enctype="multipart/form-data".to_string() on_response=on_img_edit_response.clone()>
+                    <input type="hidden" name="id" value={playlist.id} />
+                    <label for="edit-playlist-img">
+                        <Icon icon={icondata::BiPencilSolid} {..} class="absolute bottom-10 right-10 w-8 h-8 control opacity-0 group-hover:opacity-100" />
+                    </label>
+                    <input id="edit-playlist-img" type="file" accept="image/*" class="hidden" onchange="form.submit()" />
+                </Form>
+            </div>
+            <div>
+                <Show
+                    when=move || editing_name.get()
+                    fallback=move || view! {
+                        <h1 class="text-4xl" on:click=on_edit>{playlist_name}</h1>
+                    }
+                >
+                    <input type="text" bind:value=playlist_name
+                        class="bg-neutral-800 text-neutral-200 border border-neutral-600 rounded-lg p-2 w-full outline-none text-4xl"
+                        required
+                        node_ref=name_edit_input autocomplete="off" />
+                </Show>
+                <p>{format!("Last Updated {}", playlist.updated_at.format("%B %-d %Y"))}</p>
+                <div class="flex">
+                    <button class="control" on:click=on_play>
+                        {move || if playing.get() {
+                            Either::Left(view! { <Icon icon={icondata::BsPauseFill} {..} class="w-12 h-12" /> })
+                        } else {
+                            Either::Right(view! { <Icon icon={icondata::BsPlayFill} {..} class="w-12 h-12" /> })
+                        }}
+                    </button>
+                    <button node_ref=delete_btn class="control" on:click=on_delete style={move || if confirm_delete.get() { "color: red;" } else { "" }} >
+                        <Icon icon={icondata::AiDeleteOutlined} {..} class="w-12 h-12" />
+                    </button>
+                </div>
+            </div>
+        </div>
+    }
+}