From 06ccea56d12a1bfaa1dd7043e4d1996ebb0acd84 Mon Sep 17 00:00:00 2001
From: jude <jude@jellywx.com>
Date: Tue, 16 Apr 2024 20:37:42 +0100
Subject: [PATCH] Add details for building

---
 .idea/workspace.xml            |  10 +-
 Cargo.lock                     | 251 ++++++++++++++++++++++++++++++++-
 Cargo.toml                     |   7 +
 Containerfile                  |   2 +-
 README.md                      |  38 +++++
 etc/playlistd.toml             |  15 ++
 src/daemon/update_playlists.rs |  19 ++-
 src/main.rs                    |  36 +++--
 8 files changed, 355 insertions(+), 23 deletions(-)
 create mode 100644 README.md
 create mode 100644 etc/playlistd.toml

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 4ce9c3c..6a1e873 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -13,8 +13,14 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="52900e09-9584-4b6c-95ff-fbd4ed5d8b2c" name="Changes" comment="Add interface package. Start adding auth stuff for refreshing tokens.">
+      <change afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/etc/playlistd.toml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Cargo.lock" beforeDir="false" afterPath="$PROJECT_DIR$/Cargo.lock" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/Cargo.toml" beforeDir="false" afterPath="$PROJECT_DIR$/Cargo.toml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/Containerfile" beforeDir="false" afterPath="$PROJECT_DIR$/Containerfile" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/daemon/update_playlists.rs" beforeDir="false" afterPath="$PROJECT_DIR$/src/daemon/update_playlists.rs" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main.rs" beforeDir="false" afterPath="$PROJECT_DIR$/src/main.rs" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -107,7 +113,7 @@
         <env name="SUBSONIC_BASE" value="https://navidrome.jellypro.xyz/rest" />
         <env name="SUBSONIC_PASSWORD" value="u7P4xQYZEvC9pFva" />
         <env name="SUBSONIC_USERNAME" value="jude" />
-        <env name="UPDATE_INTERVAL" value="240" />
+        <env name="DAEMON_INTERVAL" value="240" />
       </envs>
       <option name="emulateTerminal" value="false" />
       <option name="channel" value="DEFAULT" />
@@ -153,7 +159,7 @@
       <workItem from="1710677603495" duration="13803000" />
       <workItem from="1710872266453" duration="225000" />
       <workItem from="1713283733149" duration="180000" />
-      <workItem from="1713283935337" duration="7223000" />
+      <workItem from="1713283935337" duration="11994000" />
     </task>
     <task id="LOCAL-00001" summary="Structure">
       <created>1692008860369</created>
diff --git a/Cargo.lock b/Cargo.lock
index d002548..a7bd390 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -208,12 +208,61 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "config"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7328b20597b53c2454f0b1919720c25c7339051c02b72b7e05409e00b14132be"
+dependencies = [
+ "async-trait",
+ "convert_case",
+ "json5",
+ "lazy_static",
+ "nom",
+ "pathdiff",
+ "ron",
+ "rust-ini",
+ "serde",
+ "serde_json",
+ "toml",
+ "yaml-rust",
+]
+
 [[package]]
 name = "const-oid"
 version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
+[[package]]
+name = "const-random"
+version = "0.1.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87e00182fe74b066627d63b85fd550ac2998d4b0bd86bfed477a0ae4c7c71359"
+dependencies = [
+ "const-random-macro",
+]
+
+[[package]]
+name = "const-random-macro"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9d839f2a20b0aee515dc581a6172f2321f96cab76c1a38a4c584a194955390e"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "tiny-keccak",
+]
+
+[[package]]
+name = "convert_case"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -269,6 +318,12 @@ version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
 
+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -302,6 +357,15 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "dlv-list"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "442039f5147480ba31067cb00ada1adae6892028e40e45fc5de7b7df6dcc1b5f"
+dependencies = [
+ "const-random",
+]
+
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -549,6 +613,12 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
+
 [[package]]
 name = "hashbrown"
 version = "0.14.3"
@@ -565,7 +635,7 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8094feaf31ff591f651a2664fb9cfd92bba7a60ce3197265e9482ebe753c8f7"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.14.3",
 ]
 
 [[package]]
@@ -774,7 +844,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "233cf39063f058ea2caae4091bf4a3ef70a653afbc026f5c4a4135d114e3c177"
 dependencies = [
  "equivalent",
- "hashbrown",
+ "hashbrown 0.14.3",
 ]
 
 [[package]]
@@ -807,6 +877,17 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "json5"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96b0db21af676c1ce64250b5f40f3ce2cf27e4e47cb91ed91eb6fe9350b430c1"
+dependencies = [
+ "pest",
+ "pest_derive",
+ "serde",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -839,6 +920,12 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "linked-hash-map"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.13"
@@ -944,6 +1031,7 @@ name = "navidrome-playlists"
 version = "0.1.0"
 dependencies = [
  "axum",
+ "config",
  "getrandom",
  "md5",
  "reqwest",
@@ -1091,6 +1179,16 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "ordered-multimap"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ed8acf08e98e744e5384c8bc63ceb0364e68a6854187221c18df61c4797690e"
+dependencies = [
+ "dlv-list",
+ "hashbrown 0.13.2",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1120,6 +1218,12 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
 
+[[package]]
+name = "pathdiff"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8835116a5c179084a830efb3adc117ab007512b535bc1a21c991d3b32a6b44dd"
+
 [[package]]
 name = "pem-rfc7468"
 version = "0.7.0"
@@ -1135,6 +1239,51 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "pest"
+version = "2.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "311fb059dee1a7b802f036316d790138c613a4e8b180c822e3925a662e9f0c95"
+dependencies = [
+ "memchr",
+ "thiserror",
+ "ucd-trie",
+]
+
+[[package]]
+name = "pest_derive"
+version = "2.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f73541b156d32197eecda1a4014d7f868fd2bcb3c550d5386087cfba442bf69c"
+dependencies = [
+ "pest",
+ "pest_generator",
+]
+
+[[package]]
+name = "pest_generator"
+version = "2.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c35eeed0a3fab112f75165fdc026b3913f4183133f19b49be773ac9ea966e8bd"
+dependencies = [
+ "pest",
+ "pest_meta",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.51",
+]
+
+[[package]]
+name = "pest_meta"
+version = "2.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2adbf29bb9776f28caece835398781ab24435585fe0d4dc1374a61db5accedca"
+dependencies = [
+ "once_cell",
+ "pest",
+ "sha2",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.1.4"
@@ -1297,6 +1446,18 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "ron"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b91f7eff05f748767f183df4320a63d6936e9c6107d97c9e6bdd9784f4289c94"
+dependencies = [
+ "base64",
+ "bitflags 2.4.2",
+ "serde",
+ "serde_derive",
+]
+
 [[package]]
 name = "rsa"
 version = "0.9.6"
@@ -1317,6 +1478,16 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rust-ini"
+version = "0.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e2a3bcec1f113553ef1c88aae6c020a369d03d55b58de9869a0908930385091"
+dependencies = [
+ "cfg-if",
+ "ordered-multimap",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"
@@ -1436,6 +1607,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb3622f419d1296904700073ea6cc23ad690adbd66f13ea683df73298736f0c1"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -1849,6 +2029,15 @@ dependencies = [
  "syn 2.0.51",
 ]
 
+[[package]]
+name = "tiny-keccak"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c9d3793400a45f954c52e73d068316d76b6f4e36977e3fcebb13a2721e80237"
+dependencies = [
+ "crunchy",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -1929,6 +2118,40 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "toml"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9dd1545e8208b4a5af1aa9bbd0b4cf7e9ea08fabc5d0a5c67fcaafa17433aa3"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3550f4e9685620ac18a50ed434eb3aec30db8ba93b0287467bca5826ea25baf1"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.22.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e40bb779c5187258fd7aad0eb68cb8706a0a81fa712fbea808ab43c4b8374c4"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
 [[package]]
 name = "tower"
 version = "0.4.13"
@@ -2001,6 +2224,12 @@ version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
 
+[[package]]
+name = "ucd-trie"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed646292ffc8188ef8ea4d1e0e0150fb15a5c2e12ad9b8fc191ae7a8a7f3c4b9"
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.15"
@@ -2302,6 +2531,15 @@ version = "0.52.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0770833d60a970638e989b3fa9fd2bb1aaadcf88963d1659fd7d9990196ed2d6"
 
+[[package]]
+name = "winnow"
+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c976aaaa0e1f90dbb21e9587cdaf1d9679a1cde8875c0d6bd83ab96a208352"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
@@ -2312,6 +2550,15 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "yaml-rust"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
+dependencies = [
+ "linked-hash-map",
+]
+
 [[package]]
 name = "zerocopy"
 version = "0.7.32"
diff --git a/Cargo.toml b/Cargo.toml
index 14ea7a7..84d4fa5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,9 +15,16 @@ uuid = { version = "1.7", features = ["v4", "serde"] }
 md5 = "0.7.0"
 getrandom = "0.2.12"
 thiserror = "1.0.58"
+config = "0.14.0"
 
 [package.metadata.deb]
 depends = "$auto"
+assets = [
+    ["etc/playlistd.toml", "etc/playlistd.toml", "600"],
+]
+conf-files = [
+    "/etc/playlistd.toml",
+]
 
 [package.metadata.deb.systemd-units]
 unit-scripts = "systemd"
diff --git a/Containerfile b/Containerfile
index 65090c1..197f82d 100644
--- a/Containerfile
+++ b/Containerfile
@@ -4,6 +4,6 @@ ENV RUSTUP_HOME=/usr/local/rustup \
     CARGO_HOME=/usr/local/cargo \
     PATH=/usr/local/cargo/bin:$PATH
 
-RUN apt update && DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt install -y gcc gcc-multilib cmake pkg-config libssl-dev curl mysql-client-8.0 npm
+RUN apt update && DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt install -y gcc gcc-multilib cmake pkg-config libssl-dev curl
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --no-modify-path --profile minimal --default-toolchain nightly
 RUN cargo install cargo-deb
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f0584a4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,38 @@
+# playlistd
+
+A daemon and API for automatically updating Subsonic playlists from Listenbrainz data
+
+*Note: I've not actually tested this against Subsonic, only Navidrome*
+
+## Building & running
+
+This is a standard Rust project and should be uncomplicated to build and run. It does read some
+environment variables:
+
+* `SUBSONIC_BASE`, your Subsonic instance's API base. For navidrome users, this
+  is `<protocol>://<host>/rest`
+* `SUBSONIC_USERNAME`, your Subsonic username
+* `SUBSONIC_PASSWORD`, your Subsonic password
+* `DATABASE_URL`, the URL for a Postgres database
+* `DAEMON_INTERVAL`, how often to update playlists
+
+For deploying, these can be configured in `/etc/playlistd.toml`.
+
+### Container build (Ubuntu 20.04)
+
+`podman run --rm --network=host -v "$PWD":/mnt -w /mnt -e "DATABASE_URL=postgres://jude@127.0.0.1/navidrome-playlists" playlistd cargo deb`
+
+## How to use
+
+### Tracked playlist
+
+A tracked playlist is a single Subsonic playlist that tracks data from Listenbrainz. For example,
+a playlist that contains your top 15 songs from the past week.
+
+These will work best when your music library is well organised with Musicbrainz metadata.
+
+You can create a tracked playlist by inserting a row into the `tracked_playlist` table.
+
+### Static playlist
+
+TODO, not yet implemented
diff --git a/etc/playlistd.toml b/etc/playlistd.toml
new file mode 100644
index 0000000..3ce6e9a
--- /dev/null
+++ b/etc/playlistd.toml
@@ -0,0 +1,15 @@
+[subsonic]
+# The API base URL
+base = "http://localhost/rest"
+# Your subsonic username
+username = "admin"
+# Your subsonic password
+password = ""
+
+[daemon]
+# How often to refresh playlists (in seconds)
+interval = 240
+
+[database]
+# URL of database to use
+url = "postgres:///navidrome-playlists"
diff --git a/src/daemon/update_playlists.rs b/src/daemon/update_playlists.rs
index 3e865d3..ec66b5b 100644
--- a/src/daemon/update_playlists.rs
+++ b/src/daemon/update_playlists.rs
@@ -1,9 +1,8 @@
-use crate::listenbrainz;
 use crate::listenbrainz::StatsRange;
 use crate::models::TrackedPlaylist;
 use crate::subsonic::Subsonic;
+use crate::{listenbrainz, CONFIG};
 use sqlx::postgres::PgPool;
-use std::env;
 use std::time::Duration;
 use thiserror::Error;
 use tokio::time::{interval, MissedTickBehavior};
@@ -21,11 +20,19 @@ pub async fn update_playlists_daemon(
 ) -> Result<(), Box<dyn std::error::Error>> {
     println!("Playlist daemon starting...");
 
-    let database = PgPool::connect(&env::var("DATABASE_URL").unwrap())
-        .await
-        .unwrap();
+    let database = PgPool::connect(
+        CONFIG
+            .get()
+            .unwrap()
+            .get::<String>("database.url")?
+            .as_str(),
+    )
+    .await
+    .unwrap();
 
-    let mut ticker = interval(Duration::from_secs(env::var("UPDATE_INTERVAL")?.parse()?));
+    let mut ticker = interval(Duration::from_secs(
+        CONFIG.get().unwrap().get::<u64>("daemon.interval")?,
+    ));
     ticker.set_missed_tick_behavior(MissedTickBehavior::Skip);
 
     loop {
diff --git a/src/main.rs b/src/main.rs
index 9b1ec12..51777ec 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,28 +11,40 @@ use crate::subsonic::SubsonicBuilder;
 use axum::extract::State;
 use axum::routing::{get, put};
 use axum::{extract, Json, Router};
+use config::Config;
 use serde::Serialize;
 use sqlx::postgres::PgPool;
 use sqlx::Error;
-use std::collections::HashMap;
-use std::env;
-use std::sync::Arc;
-use tokio::sync::RwLock;
+use std::sync::OnceLock;
 
-#[derive(Clone)]
-struct TrackState {
-    tracks: Arc<RwLock<HashMap<String, String>>>,
-}
+pub static CONFIG: OnceLock<Config> = OnceLock::new();
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let database = PgPool::connect(&env::var("DATABASE_URL")?).await?;
+    CONFIG
+        .set(
+            Config::builder()
+                .add_source(config::File::with_name("/etc/playlistd").required(false))
+                .add_source(config::Environment::default().separator("_"))
+                .build()
+                .unwrap(),
+        )
+        .unwrap();
+
+    let database = PgPool::connect(
+        CONFIG
+            .get()
+            .unwrap()
+            .get::<String>("database.url")?
+            .as_str(),
+    )
+    .await?;
     sqlx::migrate!().run(&database).await?;
 
     let media_client = SubsonicBuilder::new()
-        .base(env::var("SUBSONIC_BASE")?)
-        .username(env::var("SUBSONIC_USERNAME")?)
-        .password(env::var("SUBSONIC_PASSWORD")?)
+        .base(CONFIG.get().unwrap().get::<String>("subsonic.base")?)
+        .username(CONFIG.get().unwrap().get::<String>("subsonic.username")?)
+        .password(CONFIG.get().unwrap().get::<String>("subsonic.password")?)
         .build()?;
 
     tokio::spawn(async move {