Merge branch '36-implement-likes-and-dislikes' into 'main'

Implement likes and dislikes

Closes #36

See merge request libretunes/libretunes!32

migrations/2024-05-10-195644_create_likes_dislikes_table/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE song_likes;
+DROP TABLE song_dislikes;

migrations/2024-05-10-195644_create_likes_dislikes_table/up.sql

@@ -0,0 +1,11 @@
+CREATE TABLE song_likes (
+	song_id INTEGER REFERENCES songs(id) ON DELETE CASCADE NOT NULL,
+	user_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
+	PRIMARY KEY (song_id, user_id)
+);
+
+CREATE TABLE song_dislikes (
+	song_id INTEGER REFERENCES songs(id) ON DELETE CASCADE NOT NULL,
+	user_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
+	PRIMARY KEY (song_id, user_id)
+);

src/api/mod.rs

@@ -0,0 +1 @@
+pub mod songs;

src/api/songs.rs

@@ -0,0 +1,55 @@
+use leptos::*;
+
+use cfg_if::cfg_if;
+
+
+cfg_if! {
+	if #[cfg(feature = "ssr")] {
+		use leptos::server_fn::error::NoCustomError;
+		use crate::database::get_db_conn;
+		use crate::auth::get_user;
+	}
+}
+
+/// Like or unlike a song
+#[server(endpoint = "songs/set_like")]
+pub async fn set_like_song(song_id: i32, like: bool) -> Result<(), ServerFnError> {
+	let user = get_user().await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error getting user: {}", e)))?;
+	
+	let db_con = &mut get_db_conn();
+
+	user.set_like_song(song_id, like, db_con).await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error liking song: {}", e)))
+}
+
+/// Dislike or remove dislike from a song
+#[server(endpoint = "songs/set_dislike")]
+pub async fn set_dislike_song(song_id: i32, dislike: bool) -> Result<(), ServerFnError> {
+	let user = get_user().await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error getting user: {}", e)))?;
+	
+	let db_con = &mut get_db_conn();
+
+	user.set_dislike_song(song_id, dislike, db_con).await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error disliking song: {}", e)))
+}
+
+/// Get the like and dislike status of a song
+#[server(endpoint = "songs/get_like_dislike")]
+pub async fn get_like_dislike_song(song_id: i32) -> Result<(bool, bool), ServerFnError> {
+	let user = get_user().await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error getting user: {}", e)))?;
+
+	let db_con = &mut get_db_conn();
+
+	// TODO this could probably be done more efficiently with a tokio::try_join, but 
+	// doing so is much more complicated than it would initially seem
+
+	let like = user.get_like_song(song_id, db_con).await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error getting song liked: {}", e)))?;
+	let dislike = user.get_dislike_song(song_id, db_con).await.map_err(|e| ServerFnError::<NoCustomError>::
+		ServerError(format!("Error getting song disliked: {}", e)))?;
+
+	Ok((like, dislike))
+}

src/auth.rs

@@ -122,6 +122,29 @@ pub async fn require_auth() -> Result<(), ServerFnError> {
 	})
 }
 
+/// Get the current logged-in user
+/// Returns a Result with the user if they are logged in
+/// Returns an error if the user is not logged in, or if there is an error getting the user
+/// Intended to be used in a route to get the current user:
+/// ```rust
+/// use leptos::*;
+/// use libretunes::auth::get_user;
+/// #[server(endpoint = "user_route")]
+/// pub async fn user_route() -> Result<(), ServerFnError> {
+/// 	let user = get_user().await?;
+/// 	println!("Logged in as: {}", user.username);
+/// 	// Do something with the user
+/// 	Ok(())
+/// }
+/// ```
+#[cfg(feature = "ssr")]
+pub async fn get_user() -> Result<User, ServerFnError> {
+	let auth_session = extract::<AuthSession<AuthBackend>>().await
+		.map_err(|e| ServerFnError::<NoCustomError>::ServerError(format!("Error getting auth session: {}", e)))?;
+
+	auth_session.user.ok_or(ServerFnError::<NoCustomError>::ServerError("User not logged in".to_string()))
+}
+
 /// Check if a user is an admin
 /// Returns a Result with a boolean indicating if the user is logged in and an admin
 #[server(endpoint = "check_admin")]

src/lib.rs

@@ -13,6 +13,7 @@ pub mod users;
 pub mod search;
 pub mod fileserv;
 pub mod error_template;
+pub mod api;
 pub mod upload;
 pub mod util;
 

src/models.rs

@@ -45,6 +45,135 @@ pub struct User {
 	pub admin: bool,
 }
 
+impl User {
+	/// Like or unlike a song for this user
+	/// If likeing a song, remove dislike if it exists
+	#[cfg(feature = "ssr")]
+	pub async fn set_like_song(self: &Self, song_id: i32, like: bool, conn: &mut PgPooledConn) -> 
+		Result<(), Box<dyn Error>> {
+		use log::*;
+		debug!("Setting like for song {} to {}", song_id, like);
+
+		use crate::schema::song_likes;
+		use crate::schema::song_dislikes;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to like/un-like a song")?;
+
+		if like {
+			diesel::insert_into(song_likes::table)
+				.values((song_likes::song_id.eq(song_id), song_likes::user_id.eq(my_id)))
+				.execute(conn)?;
+
+			// Remove dislike if it exists
+			diesel::delete(song_dislikes::table.filter(song_dislikes::song_id.eq(song_id)
+				.and(song_dislikes::user_id.eq(my_id))))
+				.execute(conn)?;
+		} else {
+			diesel::delete(song_likes::table.filter(song_likes::song_id.eq(song_id).and(song_likes::user_id.eq(my_id))))
+				.execute(conn)?;
+		}
+
+		Ok(())
+	}
+
+	/// Get the like status of a song for this user
+	#[cfg(feature = "ssr")]
+	pub async fn get_like_song(self: &Self, song_id: i32, conn: &mut PgPooledConn) -> Result<bool, Box<dyn Error>> {
+		use crate::schema::song_likes;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to get like status of a song")?;
+
+		let like = song_likes::table
+			.filter(song_likes::song_id.eq(song_id).and(song_likes::user_id.eq(my_id)))
+			.first::<(i32, i32)>(conn)
+			.optional()?
+			.is_some();
+
+		Ok(like)
+	}
+
+	/// Get songs liked by this user
+	#[cfg(feature = "ssr")]
+	pub async fn get_liked_songs(self: &Self, conn: &mut PgPooledConn) -> Result<Vec<Song>, Box<dyn Error>> {
+		use crate::schema::songs::dsl::*;
+		use crate::schema::song_likes::dsl::*;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to get liked songs")?;
+
+		let my_songs = songs
+			.inner_join(song_likes)
+			.filter(user_id.eq(my_id))
+			.select(songs::all_columns())
+			.load(conn)?;
+
+		Ok(my_songs)
+	}
+
+	/// Dislike or remove dislike from a song for this user
+	/// If disliking a song, remove like if it exists
+	#[cfg(feature = "ssr")]
+	pub async fn set_dislike_song(self: &Self, song_id: i32, dislike: bool, conn: &mut PgPooledConn) -> 
+		Result<(), Box<dyn Error>> {
+		use log::*;
+		debug!("Setting dislike for song {} to {}", song_id, dislike);
+
+		use crate::schema::song_likes;
+		use crate::schema::song_dislikes;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to dislike/un-dislike a song")?;
+
+		if dislike {
+			diesel::insert_into(song_dislikes::table)
+				.values((song_dislikes::song_id.eq(song_id), song_dislikes::user_id.eq(my_id)))
+				.execute(conn)?;
+
+			// Remove like if it exists
+			diesel::delete(song_likes::table.filter(song_likes::song_id.eq(song_id)
+				.and(song_likes::user_id.eq(my_id))))
+				.execute(conn)?;
+		} else {
+			diesel::delete(song_dislikes::table.filter(song_dislikes::song_id.eq(song_id)
+				.and(song_dislikes::user_id.eq(my_id))))
+				.execute(conn)?;
+		}
+
+		Ok(())
+	}
+
+	/// Get the dislike status of a song for this user
+	#[cfg(feature = "ssr")]
+	pub async fn get_dislike_song(self: &Self, song_id: i32, conn: &mut PgPooledConn) -> Result<bool, Box<dyn Error>> {
+		use crate::schema::song_dislikes;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to get dislike status of a song")?;
+
+		let dislike = song_dislikes::table
+			.filter(song_dislikes::song_id.eq(song_id).and(song_dislikes::user_id.eq(my_id)))
+			.first::<(i32, i32)>(conn)
+			.optional()?
+			.is_some();
+
+		Ok(dislike)
+	}
+
+	/// Get songs disliked by this user
+	#[cfg(feature = "ssr")]
+	pub async fn get_disliked_songs(self: &Self, conn: &mut PgPooledConn) -> Result<Vec<Song>, Box<dyn Error>> {
+		use crate::schema::songs::dsl::*;
+		use crate::schema::song_likes::dsl::*;
+
+		let my_id = self.id.ok_or("User id must be present (Some) to get disliked songs")?;
+
+		let my_songs = songs
+			.inner_join(song_likes)
+			.filter(user_id.eq(my_id))
+			.select(songs::all_columns())
+			.load(conn)?;
+
+		Ok(my_songs)
+	}
+}
+
 /// Model for an artist
 #[cfg_attr(feature = "ssr", derive(Queryable, Selectable, Insertable, Identifiable))]
 #[cfg_attr(feature = "ssr", diesel(table_name = crate::schema::artists))]

src/playbar.rs

@@ -1,5 +1,7 @@
 use crate::models::Artist;
 use crate::playstatus::PlayStatus;
+use crate::songdata::SongData;
+use crate::api::songs;
 use leptos::ev::MouseEvent;
 use leptos::html::{Audio, Div};
 use leptos::leptos_dom::*;
@@ -269,13 +271,124 @@ fn MediaInfo(status: RwSignal<PlayStatus>) -> impl IntoView {
 	});
 
     view! {
-        <div class="media-info">
         <img class="media-info-img" align="left" src={image}/>
         <div class="media-info-text">
             {name}
             <br/>
             {artist} - {album}
         </div>
+    }
+}
+
+/// The like and dislike buttons
+#[component]
+fn LikeDislike(status: RwSignal<PlayStatus>) -> impl IntoView {
+    let like_icon = Signal::derive(move || {
+        status.with(|status| {
+            match status.queue.front() {
+                Some(SongData { like_dislike: Some((true, _)), .. }) => icondata::TbThumbUpFilled,
+                _ => icondata::TbThumbUp,
+            }
+        })
+    });
+
+    let dislike_icon = Signal::derive(move || {
+        status.with(|status| {
+            match status.queue.front() {
+                Some(SongData { like_dislike: Some((_, true)), .. }) => icondata::TbThumbDownFilled,
+                _ => icondata::TbThumbDown,
+            }
+        })
+    });
+
+    let toggle_like = move |_| {
+        status.update(|status| {
+            match status.queue.front_mut() {
+                Some(SongData { id, like_dislike: Some((liked, disliked)), .. }) => {
+                    *liked = !*liked;
+
+                    if *liked {
+                        *disliked = false;
+                    }
+
+                    let id = *id;
+                    let liked = *liked;
+                    spawn_local(async move {
+                        if let Err(e) = songs::set_like_song(id, liked).await {
+                            error!("Error liking song: {:?}", e);
+                        }
+                    });
+                },
+                Some(SongData { id, like_dislike, .. }) => {
+                    // This arm should only be reached if like_dislike is None
+                    // In this case, the buttons will show up not filled, indicating that the song is not
+                    // liked or disliked. Therefore, clicking the like button should like the song.
+
+                    *like_dislike = Some((true, false));
+
+                    let id = *id;
+                    spawn_local(async move {
+                        if let Err(e) = songs::set_like_song(id, true).await {
+                            error!("Error liking song: {:?}", e);
+                        }
+                    });
+                },
+                _ => {
+                    log!("Unable to like song: No song in queue");
+                    return;
+                }
+            }
+        });
+    };
+
+    let toggle_dislike = move |_| {
+        status.update(|status| {
+            match status.queue.front_mut() {
+                Some(SongData { id, like_dislike: Some((liked, disliked)), .. }) => {
+                    *disliked = !*disliked;
+
+                    if *disliked {
+                        *liked = false;
+                    }
+
+                    let id = *id;
+                    let disliked = *disliked;
+                    spawn_local(async move {
+                        if let Err(e) = songs::set_dislike_song(id, disliked).await {
+                            error!("Error disliking song: {:?}", e);
+                        }
+                    });
+                },
+                Some(SongData { id, like_dislike, .. }) => {
+                    // This arm should only be reached if like_dislike is None
+                    // In this case, the buttons will show up not filled, indicating that the song is not
+                    // liked or disliked. Therefore, clicking the dislike button should dislike the song.
+                    
+                    *like_dislike = Some((false, true));
+
+                    let id = *id;
+                    spawn_local(async move { 
+                        if let Err(e) = songs::set_dislike_song(id, true).await {
+                            error!("Error disliking song: {:?}", e);
+                        }
+                    });
+                },
+                _ => {
+                    log!("Unable to dislike song: No song in queue");
+                    return;
+                }
+            }
+        });
+    };
+
+    view! {
+        <div class="like-dislike">
+            <button on:click=toggle_dislike>
+                <Icon class="controlbtn hmirror" width=SKIP_BTN_SIZE height=SKIP_BTN_SIZE icon=dislike_icon />
+            </button>
+            <button on:click=toggle_like>
+                <Icon class="controlbtn" width=SKIP_BTN_SIZE height=SKIP_BTN_SIZE icon=like_icon />
+            </button>
         </div>
     }
 }
@@ -488,7 +601,10 @@ pub fn PlayBar(status: RwSignal<PlayStatus>) -> impl IntoView {
             on:timeupdate=on_time_update on:ended=on_end type="audio/mpeg" />
         <div class="playbar">
         <ProgressBar percentage=percentage.into() status=status />
+        <div class="playbar-left-group">
         <MediaInfo status=status />
+        <LikeDislike status=status />
+        </div>
         <PlayControls status=status />
         <PlayDuration elapsed_secs=elapsed_secs.into() total_secs=total_secs.into() />
         <QueueToggle status=status />

src/schema.rs

@@ -30,6 +30,20 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    song_dislikes (song_id, user_id) {
+        song_id -> Int4,
+        user_id -> Int4,
+    }
+}
+
+diesel::table! {
+    song_likes (song_id, user_id) {
+        song_id -> Int4,
+        user_id -> Int4,
+    }
+}
+
 diesel::table! {
     songs (id) {
         id -> Int4,
@@ -58,6 +72,10 @@ diesel::joinable!(album_artists -> albums (album_id));
 diesel::joinable!(album_artists -> artists (artist_id));
 diesel::joinable!(song_artists -> artists (artist_id));
 diesel::joinable!(song_artists -> songs (song_id));
+diesel::joinable!(song_dislikes -> songs (song_id));
+diesel::joinable!(song_dislikes -> users (user_id));
+diesel::joinable!(song_likes -> songs (song_id));
+diesel::joinable!(song_likes -> users (user_id));
 diesel::joinable!(songs -> albums (album_id));
 
 diesel::allow_tables_to_appear_in_same_query!(
@@ -65,6 +83,8 @@ diesel::allow_tables_to_appear_in_same_query!(
     albums,
     artists,
     song_artists,
+    song_dislikes,
+    song_likes,
     songs,
     users,
 );

src/songdata.rs

@@ -26,45 +26,10 @@ pub struct SongData {
 	/// Path to song image, relative to the root of the web server.
 	/// For example, `"/assets/images/Song.jpg"`
 	pub image_path: String,
+	/// Whether the song is liked by the user
+	pub like_dislike: Option<(bool, bool)>,
 }
 
-#[cfg(feature = "ssr")]
-impl TryInto<SongData> for Song {
-	type Error = Box<dyn std::error::Error>;
-
-	/// Convert a Song object into a SongData object
-	/// 
-	/// This conversion is expensive, as it requires database queries to get the artist and album objects.
-	/// The SongData/Song conversions are also not truly reversible,
-	/// due to the way the image_path, album, and artist data is handled.
-	fn try_into(self) -> Result<SongData, Self::Error> {
-		use crate::database;
-		let mut db_con = database::get_db_conn();
-
-		let album = self.get_album(&mut db_con)?;
-
-		// Use the song's image path if it exists, otherwise use the album's image path, or fallback to the placeholder
-		let image_path = self.image_path.clone().unwrap_or_else(|| {
-			album
-				.as_ref()
-				.and_then(|album| album.image_path.clone())
-				.unwrap_or_else(|| "/assets/images/placeholder.jpg".to_string())
-		});
-
-		Ok(SongData {
-			id: self.id.ok_or("Song id must be present (Some) to convert to SongData")?,
-			title: self.title.clone(),
-			artists: self.get_artists(&mut db_con)?,
-			album: album,
-			track: self.track,
-			duration: self.duration,
-			release_date: self.release_date,
-			// TODO https://gitlab.mregirouard.com/libretunes/libretunes/-/issues/35
-			song_path: self.storage_path,
-			image_path: image_path,
-		})
-	}
-}
 
 impl TryInto<Song> for SongData {
 	type Error = Box<dyn std::error::Error>;
@@ -72,7 +37,7 @@ impl TryInto<Song> for SongData {
 	/// Convert a SongData object into a Song object
 	/// 
 	/// The SongData/Song conversions are also not truly reversible,
-	/// due to the way the image_path, album, and  and artist data is handled.
+	/// due to the way the image_path data is handled.
 	fn try_into(self) -> Result<Song, Self::Error> {
 		Ok(Song {
 			id: Some(self.id),

style/playbar.scss

@@ -39,15 +39,12 @@
 		}
 	}
 
-	.media-info {
-		font-size: 16;
-		margin-left: 10px;
-
+	.playbar-left-group {
+		display: flex;
 		position: absolute;
 		top: 50%;
 		transform: translateY(-50%);
-		display: grid;
-		grid-template-columns: 50px 1fr;
+		margin-left: 10px;
 
 		.media-info-img {
 			width: 50px;
@@ -57,6 +54,10 @@
 			text-align: left;
 			margin-left: 10px;
 		}
+
+		.like-dislike {
+			margin-left: 20px;
+		}
 	}
 
 	.playcontrols {
@@ -64,23 +65,6 @@
 		flex-direction: row;
 		justify-content: center;
 		align-items: center;
-
-		button {
-			.controlbtn {
-				color: $text-controls-color;
-			}
-
-			.controlbtn:hover {
-				color: $controls-hover-color;
-			}
-
-			.controlbtn:active {
-				color: $controls-click-color;
-			}
-	
-			background-color: transparent;
-			border: transparent;
-		}
 	}
 
 	.playduration {
@@ -94,22 +78,30 @@
 		bottom: 13px;
 		top: 13px;
 		right: 90px;
+	}
 
-		button {
-			.controlbtn {
-				color: $text-controls-color;
-			}
-
-			.controlbtn:hover {
-				color: $controls-hover-color;
-			}
-
-			.controlbtn:active {
-				color: $controls-click-color;
-			}
-	
-			background-color: transparent;
-			border: transparent;
+	button {
+		.hmirror {
+			-moz-transform: scale(-1, 1);
+			-webkit-transform: scale(-1, 1);
+			-o-transform: scale(-1, 1);
+			-ms-transform: scale(-1, 1);
+			transform: scale(-1, 1);
 		}
+
+		.controlbtn {
+			color: $text-controls-color;
+		}
+
+		.controlbtn:hover {
+			color: $controls-hover-color;
+		}
+
+		.controlbtn:active {
+			color: $controls-click-color;
+		}
+
+		background-color: transparent;
+		border: transparent;
 	}
 }