From 7a1dee61c966ba030edc4f08c137538f86d8dd60 Mon Sep 17 00:00:00 2001
From: "D. Scott Boggs" <scott@tams.tech>
Date: Sun, 25 Jun 2023 14:32:02 -0400
Subject: [PATCH] Add updates for track changes

---
 server/src/api/import.rs | 16 ++++------------
 server/src/api/tracks.rs | 40 ++++++++++++++++++++++++----------------
 server/src/api/update.rs | 33 ++++++++++++++++++++++++++++++++-
 3 files changed, 60 insertions(+), 29 deletions(-)

diff --git a/server/src/api/import.rs b/server/src/api/import.rs
index 956de57..462930b 100644
--- a/server/src/api/import.rs
+++ b/server/src/api/import.rs
@@ -8,10 +8,7 @@ use crate::error::Error;
 use super::error::ApiResult;
 
 #[post("/dump", data = "<sql_dump>")]
-pub(crate) async fn sql_dump(
-    db: &State<DatabaseConnection>,
-    sql_dump: &str,
-) -> ApiResult<Status> {
+pub(crate) async fn sql_dump(db: &State<DatabaseConnection>, sql_dump: &str) -> ApiResult<Status> {
     for line in sql_dump.lines() {
         let line = line.to_ascii_lowercase();
         if line.starts_with("insert into")
@@ -25,11 +22,8 @@ pub(crate) async fn sql_dump(
     Ok(Status::Ok)
 }
 
-#[post("/", data="<sqlite_db>")]
-pub(crate) async fn db_file(
-    db: &State<DatabaseConnection>,
-    sqlite_db: &[u8],
-) -> ApiResult<Status> {
+#[post("/", data = "<sqlite_db>")]
+pub(crate) async fn db_file(db: &State<DatabaseConnection>, sqlite_db: &[u8]) -> ApiResult<Status> {
     use std::{
         io::Write,
         process::{Command, Stdio},
@@ -51,8 +45,6 @@ pub(crate) async fn db_file(
     if result.status.success() {
         sql_dump(db, &String::from_utf8(result.stdout).map_err(Error::from)?).await
     } else {
-        Err(Error::SqliteCommandError(String::from_utf8_lossy(
-            &result.stderr,
-        ).to_string()).into())
+        Err(Error::SqliteCommandError(String::from_utf8_lossy(&result.stderr).to_string()).into())
     }
 }
diff --git a/server/src/api/tracks.rs b/server/src/api/tracks.rs
index a292ea7..c14789b 100644
--- a/server/src/api/tracks.rs
+++ b/server/src/api/tracks.rs
@@ -5,7 +5,6 @@ use either::Either::{self, Left, Right};
 use rocket::http::Status;
 use rocket::{serde::json::Json, State};
 use sea_orm::{prelude::*, DatabaseConnection};
-use std::default::default;
 use tokio::sync::broadcast::Sender;
 
 use super::update::Update;
@@ -54,37 +53,46 @@ pub(super) async fn ticks_for_track(
 #[post("/", format = "application/json", data = "<track>")]
 pub(super) async fn insert_track(
     db: &State<DatabaseConnection>,
+    tx: &State<Sender<Update>>,
     track: Json<serde_json::Value>,
 ) -> ApiResult<Json<tracks::Model>> {
     let track = track.0;
     let db = db as &DatabaseConnection;
-    let mut model: tracks::ActiveModel = default();
-    model.set_from_json(track).map_err(Error::from)?;
-    Ok(Json(model.insert(db).await.map_err(Error::from)?))
+    let model = tracks::ActiveModel::from_json(track).map_err(Error::from)?;
+    let track = model.insert(db).await.map_err(Error::from)?;
+    tx.send(Update::track_added(track.clone()))
+        .map_err(Error::from)?;
+    Ok(Json(track))
 }
 
 #[put("/", format = "application/json", data = "<track>")]
 pub(super) async fn update_track(
     db: &State<DatabaseConnection>,
+    tx: &State<Sender<Update>>,
     track: Json<serde_json::Value>,
 ) -> ApiResult<Json<tracks::Model>> {
     let db = db as &DatabaseConnection;
-    Ok(Json(
-        tracks::ActiveModel::from_json(track.0)
-            .map_err(Error::from)?
-            .update(db)
-            .await
-            .map_err(Error::from)?,
-    ))
+    let track = tracks::ActiveModel::from_json(track.0)
+        .map_err(Error::from)?
+        .update(db)
+        .await
+        .map_err(Error::from)?;
+    tx.send(Update::track_changed(track.clone()))
+        .map_err(Error::from)?;
+    Ok(Json(track))
 }
 
 #[delete("/<id>")]
-pub(super) async fn delete_track(db: &State<DatabaseConnection>, id: i32) -> ApiResult<Status> {
+pub(super) async fn delete_track(
+    db: &State<DatabaseConnection>,
+    tx: &State<Sender<Update>>,
+    id: i32,
+) -> ApiResult<Status> {
     let db = db as &DatabaseConnection;
-    Tracks::delete_by_id(id)
-        .exec(db)
-        .await
-        .map_err(Error::from)?;
+    let Some(track) = Tracks::find_by_id(id).one(db).await.map_err(Error::from)? else {
+        return Ok(Status::NotFound);
+    };
+    tx.send(Update::track_removed(track)).map_err(Error::from)?;
     Ok(Status::Ok)
 }
 
diff --git a/server/src/api/update.rs b/server/src/api/update.rs
index 0b6adba..1135c18 100644
--- a/server/src/api/update.rs
+++ b/server/src/api/update.rs
@@ -4,7 +4,10 @@ use serde::{Deserialize, Serialize};
 use serde_json::json;
 use tokio::sync::broadcast::Sender;
 
-use crate::{entities::ticks, error::Result};
+use crate::{
+    entities::{ticks, tracks},
+    error::Result,
+};
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub enum Update {
@@ -16,6 +19,10 @@ pub enum Update {
         kind: UpdateType,
         count: u64,
     },
+    TrackChanged {
+        kind: UpdateType,
+        track: tracks::Model,
+    },
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -23,6 +30,9 @@ pub enum Update {
 pub enum UpdateType {
     TickAdded,
     TickDropped,
+    TrackAdded,
+    TrackChanged,
+    TrackDropped,
     Error,
 }
 
@@ -48,6 +58,26 @@ impl Update {
         }
     }
 
+    pub fn track_added(track: tracks::Model) -> Self {
+        Self::TrackChanged {
+            kind: UpdateType::TrackAdded,
+            track,
+        }
+    }
+
+    pub fn track_removed(track: tracks::Model) -> Self {
+        Self::TrackChanged {
+            kind: UpdateType::TrackDropped,
+            track,
+        }
+    }
+
+    pub fn track_changed(track: tracks::Model) -> Self {
+        Self::TrackChanged {
+            kind: UpdateType::TrackChanged,
+            track,
+        }
+    }
     pub fn to_event(&self) -> Event {
         use Update::*;
         match self {
@@ -56,6 +86,7 @@ impl Update {
                 Event::json(&json! {{"message": "error: lagged", "count": count}})
                     .event(format!("{kind:?}"))
             }
+            TrackChanged { kind, track } => Event::json(track).event(format!("{kind:?}")),
         }
     }