Add backend

.gitignore

@@ -1,2 +1,3 @@
-/target
-/dist
+target
+dist
+.env

Cargo.toml

@@ -1,20 +1,3 @@
-[package]
-name = "singit2"
-version = "0.2.2"
-authors = ["Joakim Hulthe <joakim@hulthe.net"]
-edition = "2021"
-
-[dependencies]
-seed = "0.10.0"
-serde = { version = "1.0.0", features = ['derive'] }
-serde_json = "1.0.0"
-rand = "0.8.5"
-gloo-console = "0.3.0"
-gloo-net = "0.4.0"
-csv = "1.2.2"
-thiserror = "1.0.48"
-wasm-bindgen = "0.2.87"
-
-[dependencies.css_typegen]
-git = "https://github.com/hulthe/css_typegen.git"
-branch = "master"
+[workspace]
+members = ["backend", "frontend"]
+resolver = "2"

Dockerfile

@@ -1,11 +1,12 @@
 ##################
 ### BASE STAGE ###
 ##################
-FROM rust:1.60 as base
+FROM rust:1.72.1 as base
 
 # Install build dependencies
 RUN cargo install --locked trunk strip_cargo_version
 RUN rustup target add wasm32-unknown-unknown
+RUN rustup target add x86_64-unknown-linux-musl
 
 WORKDIR /app
 RUN mkdir frontend backend common
@@ -16,6 +17,9 @@ RUN mkdir frontend backend common
 FROM base AS strip-version
 
 COPY Cargo.lock Cargo.toml ./
+COPY frontend/Cargo.toml ./frontend/
+COPY backend/Cargo.toml ./backend/
+#COPY common/Cargo.toml ./common/
 RUN strip_cargo_version
 
 ###################
@@ -23,18 +27,50 @@ RUN strip_cargo_version
 ###################
 FROM base AS build
 
-RUN cargo init --lib .
+RUN cargo init --lib frontend
+RUN cargo init --bin backend
+RUN cargo init --lib common
+
+COPY --from=strip-version /app/frontend/Cargo.toml /app/frontend/
+COPY --from=strip-version /app/backend/Cargo.toml /app/backend/
+#COPY --from=strip-version /app/common/Cargo.toml /app/common/
 COPY --from=strip-version /app/Cargo.toml /app/Cargo.lock /app/
 
+WORKDIR /app/backend
+RUN cargo build --release --target x86_64-unknown-linux-musl
+
+WORKDIR /app/frontend
 RUN cargo build --release --target wasm32-unknown-unknown
 
+WORKDIR /app
 COPY . .
 
+WORKDIR /app/backend
+RUN cargo build --release --target x86_64-unknown-linux-musl
+
+WORKDIR /app/frontend
 RUN trunk build --release
 
 ########################
 ### PRODUCTION STAGE ###
 ########################
-FROM nginx:alpine
+FROM debian:stable-slim
 
-COPY --from=build /app/dist/ /usr/share/nginx/html/
+# Default logging level
+ENV RUST_LOG="info"
+
+ENV COVERS_DIR="/covers"
+VOLUME /covers
+
+WORKDIR /
+
+# Copy application binary
+COPY --from=build /app/target/x86_64-unknown-linux-musl/release/singit_srv /usr/local/bin/singit_srv
+
+# Copy static web files
+COPY --from=build /app/frontend/dist /dist
+
+# Copy database migrations
+COPY backend/migrations /migrations
+
+ENTRYPOINT ["singit_srv"]

backend/.env.example

@@ -0,0 +1 @@
+DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres

backend/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "singit_srv"
+version = "0.1.0"
+authors = ["Joakim Hulthe <joakim@hulthe.net"]
+edition = "2021"
+
+[dependencies]
+actix-files = "0.6.2"
+actix-web = { version = "4.4.0", default-features = false, features = ["macros"] }
+clap = { version = "4.4.4", features = ["derive", "env"] }
+diesel = "2.1.1"
+diesel-async = { version = "0.4.1", features = ["postgres", "deadpool"] }
+dotenv = "0.15.0"
+env_logger = "0.10.0"
+eyre = "0.6.8"
+log = "0.4.20"
+serde = { version = "1.0.188", default-features = false, features = ["derive", "std"] }

backend/diesel.toml

@@ -0,0 +1,9 @@
+# For documentation on how to configure this file,
+# see https://diesel.rs/guides/configuring-diesel-cli
+
+[print_schema]
+file = "src/schema.rs"
+custom_type_derives = ["diesel::query_builder::QueryId"]
+
+[migrations_directory]
+dir = "migrations"

backend/dist

@@ -0,0 +1 @@
+../frontend/dist

backend/migrations/00000000000000_diesel_initial_setup/down.sql

@@ -0,0 +1,6 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+DROP FUNCTION IF EXISTS diesel_manage_updated_at(_tbl regclass);
+DROP FUNCTION IF EXISTS diesel_set_updated_at();

backend/migrations/00000000000000_diesel_initial_setup/up.sql

@@ -0,0 +1,36 @@
+-- This file was automatically created by Diesel to setup helper functions
+-- and other internal bookkeeping. This file is safe to edit, any future
+-- changes will be added to existing projects as new migrations.
+
+
+
+
+-- Sets up a trigger for the given table to automatically set a column called
+-- `updated_at` whenever the row is modified (unless `updated_at` was included
+-- in the modified columns)
+--
+-- # Example
+--
+-- ```sql
+-- CREATE TABLE users (id SERIAL PRIMARY KEY, updated_at TIMESTAMP NOT NULL DEFAULT NOW());
+--
+-- SELECT diesel_manage_updated_at('users');
+-- ```
+CREATE OR REPLACE FUNCTION diesel_manage_updated_at(_tbl regclass) RETURNS VOID AS $$
+BEGIN
+    EXECUTE format('CREATE TRIGGER set_updated_at BEFORE UPDATE ON %s
+                    FOR EACH ROW EXECUTE PROCEDURE diesel_set_updated_at()', _tbl);
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION diesel_set_updated_at() RETURNS trigger AS $$
+BEGIN
+    IF (
+        NEW IS DISTINCT FROM OLD AND
+        NEW.updated_at IS NOT DISTINCT FROM OLD.updated_at
+    ) THEN
+        NEW.updated_at := current_timestamp;
+    END IF;
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;

backend/migrations/2023-09-21-174215_add_song_table/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE song;
+

backend/migrations/2023-09-21-174215_add_song_table/up.sql

@@ -0,0 +1,13 @@
+CREATE TABLE song(
+    song_hash TEXT NOT NULL PRIMARY KEY,
+    title TEXT NOT NULL,
+    artist TEXT NOT NULL,
+    cover TEXT,
+    language TEXT,
+    video TEXT,
+    year TEXT,
+    genre TEXT,
+    bpm TEXT NOT NULL,
+    duet_singer_1 TEXT,
+    duet_singer_2 TEXT
+);

backend/migrations/2023-09-21-202738_add_custom_lists/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE custom_list_entry;
+DROP TABLE custom_list;

backend/migrations/2023-09-21-202738_add_custom_lists/up.sql

@@ -0,0 +1,10 @@
+CREATE TABLE custom_list (
+	id SERIAL PRIMARY KEY,
+	name TEXT UNIQUE NOT NULL
+);
+
+CREATE TABLE custom_list_entry (
+	list_id SERIAL REFERENCES custom_list(id),
+	song_hash TEXT NOT NULL REFERENCES song(song_hash),
+	PRIMARY KEY (list_id, song_hash)
+);

backend/mock/custom_lists.sql

@@ -0,0 +1,253 @@
+insert into custom_list(id, name) VALUES (1, 'tux');
+insert into custom_list_entry(list_id, song_hash) VALUES
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backend/src/db.rs

@@ -0,0 +1,23 @@
+use diesel_async::{
+    pooled_connection::{deadpool::Pool, AsyncDieselConnectionManager},
+    AsyncPgConnection,
+};
+use log::info;
+
+use crate::Opt;
+
+pub type DbPool = Pool<AsyncPgConnection>;
+
+pub async fn setup(opt: &Opt) -> eyre::Result<DbPool> {
+    let manager = AsyncDieselConnectionManager::new(&opt.database_url);
+
+    info!("setting up database pool");
+    let pool = Pool::builder(manager).build()?;
+
+    info!("testing database connection");
+    let _db_test = pool.get().await?;
+
+    // TODO: migrations
+
+    Ok(pool)
+}

backend/src/main.rs

@@ -0,0 +1,178 @@
+mod db;
+mod schema;
+
+use std::{
+    path::{Path, PathBuf},
+    sync::Arc,
+};
+
+use actix_files::NamedFile;
+use actix_web::{
+    get,
+    middleware::Logger,
+    web::{self, Json},
+    App, HttpRequest, HttpServer, Responder,
+};
+use clap::Parser;
+use diesel::{ExpressionMethods, QueryDsl, Queryable, Selectable, SelectableHelper};
+use diesel_async::RunQueryDsl;
+use dotenv::dotenv;
+use serde::{Deserialize, Serialize};
+
+use crate::db::DbPool;
+
+#[derive(
+    Serialize,
+    Deserialize,
+    Debug,
+    Clone,
+    Default,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    Queryable,
+    Selectable,
+)]
+#[diesel(table_name = crate::schema::song)]
+#[diesel(check_for_backend(diesel::pg::Pg))]
+pub struct Song {
+    pub song_hash: String,
+    pub title: String,
+    pub artist: String,
+    pub cover: Option<String>,
+    pub language: Option<String>,
+    pub video: Option<String>,
+    pub year: Option<String>,
+    pub genre: Option<String>,
+    pub bpm: String,
+    #[serde(rename = "duetsingerp1")]
+    pub duet_singer_1: Option<String>,
+    #[serde(rename = "duetsingerp2")]
+    pub duet_singer_2: Option<String>,
+}
+
+#[derive(Serialize, Deserialize, Queryable, Selectable, Debug, Clone, Default)]
+#[diesel(table_name = crate::schema::custom_list)]
+#[diesel(check_for_backend(diesel::pg::Pg))]
+pub struct CustomList {
+    id: i32,
+    name: String,
+}
+
+#[get("/")]
+async fn root() -> actix_web::Result<NamedFile> {
+    let path: &Path = "dist/index.html".as_ref();
+    Ok(NamedFile::open(path)?)
+}
+
+async fn index(req: HttpRequest) -> actix_web::Result<NamedFile> {
+    let path: PathBuf = req.match_info().query("filename").parse().unwrap();
+    let path = Path::new("dist").join(path);
+    Ok(NamedFile::open(path)?)
+}
+
+#[get("/images/songs/{image}")]
+async fn song_image(
+    path: web::Path<String>,
+    opt: web::Data<Arc<Opt>>,
+) -> actix_web::Result<NamedFile> {
+    let image = path.into_inner();
+    let path = opt.covers_dir.join(image);
+    Ok(NamedFile::open(path)?)
+}
+
+#[get("/songs")]
+async fn songs(pool: web::Data<DbPool>) -> impl Responder {
+    use schema::song::dsl::*;
+
+    let mut db = pool.get().await.unwrap();
+    let songs = song.select(Song::as_select()).load(&mut db).await.unwrap();
+
+    Json(songs)
+}
+
+#[get("/custom/lists")]
+async fn custom_lists(pool: web::Data<DbPool>) -> impl Responder {
+    use schema::custom_list::dsl::*;
+
+    let mut db = pool.get().await.unwrap();
+    let lists: Vec<String> = custom_list.select(name).load(&mut db).await.unwrap();
+
+    Json(lists)
+}
+
+#[get("/custom/list/{list}")]
+async fn custom_list(pool: web::Data<DbPool>, path: web::Path<String>) -> impl Responder {
+    use schema::custom_list::dsl::*;
+    use schema::custom_list_entry::dsl::*;
+
+    let mut db = pool.get().await.unwrap();
+
+    let list: CustomList = custom_list
+        .select(CustomList::as_select())
+        .filter(name.eq(&*path))
+        .get_result(&mut db)
+        .await
+        .unwrap();
+
+    let list_entries: Vec<String> = custom_list_entry
+        .select(song_hash)
+        .filter(list_id.eq(list.id))
+        .load(&mut db)
+        .await
+        .unwrap();
+
+    Json(list_entries)
+}
+
+#[derive(Parser)]
+pub struct Opt {
+    /// Address to bind to.
+    #[clap(short, long, env = "BIND_ADDRESS", default_value = "0.0.0.0")]
+    address: String,
+
+    /// Port to bind to.
+    #[clap(short, long, env = "BIND_PORT", default_value = "8080")]
+    port: u16,
+
+    /// Postgresql URL.
+    #[clap(short, long, env = "DATABASE_URL")]
+    database_url: String,
+
+    /// Directory where song covers are stored.
+    #[clap(short, long, env = "COVERS_DIR")]
+    covers_dir: PathBuf,
+}
+
+#[actix_web::main]
+async fn main() -> eyre::Result<()> {
+    dotenv().ok();
+    let opt = Arc::new(Opt::parse());
+    env_logger::init();
+
+    let db_pool = db::setup(&opt).await?;
+    let app = {
+        let opt = Arc::clone(&opt);
+        move || {
+            let logger = Logger::default();
+
+            App::new()
+                .wrap(logger)
+                .app_data(web::Data::new(db_pool.clone()))
+                .app_data(web::Data::new(Arc::clone(&opt)))
+                .service(root)
+                .service(songs)
+                .service(song_image)
+                .service(custom_list)
+                .service(custom_lists)
+                .route("/{filename:.*}", web::get().to(index))
+        }
+    };
+    HttpServer::new(app)
+        .bind((opt.address.as_str(), opt.port))?
+        .run()
+        .await?;
+
+    Ok(())
+}

backend/src/schema.rs

@@ -0,0 +1,36 @@
+// @generated automatically by Diesel CLI.
+
+diesel::table! {
+    custom_list (id) {
+        id -> Int4,
+        name -> Text,
+    }
+}
+
+diesel::table! {
+    custom_list_entry (list_id, song_hash) {
+        list_id -> Int4,
+        song_hash -> Text,
+    }
+}
+
+diesel::table! {
+    song (song_hash) {
+        song_hash -> Text,
+        title -> Text,
+        artist -> Text,
+        cover -> Nullable<Text>,
+        language -> Nullable<Text>,
+        video -> Nullable<Text>,
+        year -> Nullable<Text>,
+        genre -> Nullable<Text>,
+        bpm -> Text,
+        duet_singer_1 -> Nullable<Text>,
+        duet_singer_2 -> Nullable<Text>,
+    }
+}
+
+diesel::joinable!(custom_list_entry -> custom_list (list_id));
+diesel::joinable!(custom_list_entry -> song (song_hash));
+
+diesel::allow_tables_to_appear_in_same_query!(custom_list, custom_list_entry, song,);

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frontend/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "singit_web"
+version = "0.2.2"
+authors = ["Joakim Hulthe <joakim@hulthe.net"]
+edition = "2021"
+
+[dependencies]
+seed = "0.10.0"
+serde = { version = "1.0.0", features = ['derive'] }
+serde_json = "1.0.0"
+rand = "0.8.5"
+gloo-console = "0.3.0"
+gloo-net = "0.4.0"
+csv = "1.2.2"
+thiserror = "1.0.48"
+wasm-bindgen = "0.2.87"
+
+[dependencies.css_typegen]
+git = "https://github.com/hulthe/css_typegen.git"
+branch = "master"

frontend/src/css.rs

@@ -4,4 +4,4 @@ use css_typegen::css_typegen;
 
 // Generate rust types for css-classes.
 // Used for autocompletion and extra compile-time checks.
-css_typegen!("static/styles");
+css_typegen!("frontend/static/styles");