Merge branch 'main' into wip/mobile

3 files changed, 215 insertions, 0 deletions

diff --git a/src/message/routes/message/mod.rs b/src/message/routes/message/mod.rs
new file mode 100644
index 0000000..545ad26
--- /dev/null
+++ b/src/message/routes/message/mod.rs
@@ -0,0 +1,46 @@
+#[cfg(test)]
+mod test;
+
+pub mod delete {
+    use axum::{
+        extract::{Path, State},
+        http::StatusCode,
+        response::{IntoResponse, Response},
+    };
+
+    use crate::{
+        app::App,
+        clock::RequestedAt,
+        error::{Internal, NotFound},
+        message::{self, app::DeleteError},
+        token::extract::Identity,
+    };
+
+    pub async fn handler(
+        State(app): State<App>,
+        Path(message): Path<message::Id>,
+        RequestedAt(deleted_at): RequestedAt,
+        _: Identity,
+    ) -> Result<StatusCode, Error> {
+        app.messages().delete(&message, &deleted_at).await?;
+
+        Ok(StatusCode::ACCEPTED)
+    }
+
+    #[derive(Debug, thiserror::Error)]
+    #[error(transparent)]
+    pub struct Error(#[from] pub DeleteError);
+
+    impl IntoResponse for Error {
+        fn into_response(self) -> Response {
+            let Self(error) = self;
+            #[allow(clippy::match_wildcard_for_single_variants)]
+            match error {
+                DeleteError::NotFound(_) | DeleteError::Deleted(_) => {
+                    NotFound(error).into_response()
+                }
+                other => Internal::from(other).into_response(),
+            }
+        }
+    }
+}
diff --git a/src/message/routes/message/test.rs b/src/message/routes/message/test.rs
new file mode 100644
index 0000000..2016fb8
--- /dev/null
+++ b/src/message/routes/message/test.rs
@@ -0,0 +1,160 @@
+use axum::{
+    extract::{Path, State},
+    http::StatusCode,
+};
+
+use super::delete;
+use crate::{message::app, test::fixtures};
+
+#[tokio::test]
+pub async fn delete_message() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let sender = fixtures::login::create(&app, &fixtures::now()).await;
+    let channel = fixtures::channel::create(&app, &fixtures::now()).await;
+    let message = fixtures::message::send(&app, &channel, &sender, &fixtures::now()).await;
+
+    // Send the request
+
+    let deleter = fixtures::identity::create(&app, &fixtures::now()).await;
+    let response = delete::handler(
+        State(app.clone()),
+        Path(message.id.clone()),
+        fixtures::now(),
+        deleter,
+    )
+    .await
+    .expect("deleting a valid message succeeds");
+
+    // Verify the response
+
+    assert_eq!(response, StatusCode::ACCEPTED);
+
+    // Verify the semantics
+
+    let snapshot = app.boot().snapshot().await.expect("boot always succeeds");
+    assert!(!snapshot.messages.contains(&message));
+}
+
+#[tokio::test]
+pub async fn delete_invalid_message_id() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+
+    // Send the request
+
+    let deleter = fixtures::identity::create(&app, &fixtures::now()).await;
+    let message = fixtures::message::fictitious();
+    let delete::Error(error) = delete::handler(
+        State(app.clone()),
+        Path(message.clone()),
+        fixtures::now(),
+        deleter,
+    )
+    .await
+    .expect_err("deleting a nonexistent message fails");
+
+    // Verify the response
+
+    assert!(matches!(error, app::DeleteError::NotFound(id) if id == message));
+}
+
+#[tokio::test]
+pub async fn delete_deleted() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let sender = fixtures::login::create(&app, &fixtures::now()).await;
+    let channel = fixtures::channel::create(&app, &fixtures::now()).await;
+    let message = fixtures::message::send(&app, &channel, &sender, &fixtures::now()).await;
+
+    app.messages()
+        .delete(&message.id, &fixtures::now())
+        .await
+        .expect("deleting a recently-sent message succeeds");
+
+    // Send the request
+
+    let deleter = fixtures::identity::create(&app, &fixtures::now()).await;
+    let delete::Error(error) = delete::handler(
+        State(app.clone()),
+        Path(message.id.clone()),
+        fixtures::now(),
+        deleter,
+    )
+    .await
+    .expect_err("deleting a deleted message fails");
+
+    // Verify the response
+
+    assert!(matches!(error, app::DeleteError::Deleted(id) if id == message.id));
+}
+
+#[tokio::test]
+pub async fn delete_expired() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let sender = fixtures::login::create(&app, &fixtures::ancient()).await;
+    let channel = fixtures::channel::create(&app, &fixtures::ancient()).await;
+    let message = fixtures::message::send(&app, &channel, &sender, &fixtures::ancient()).await;
+
+    app.messages()
+        .expire(&fixtures::now())
+        .await
+        .expect("expiring messages always succeeds");
+
+    // Send the request
+
+    let deleter = fixtures::identity::create(&app, &fixtures::now()).await;
+    let delete::Error(error) = delete::handler(
+        State(app.clone()),
+        Path(message.id.clone()),
+        fixtures::now(),
+        deleter,
+    )
+    .await
+    .expect_err("deleting an expired message fails");
+
+    // Verify the response
+
+    assert!(matches!(error, app::DeleteError::Deleted(id) if id == message.id));
+}
+
+#[tokio::test]
+pub async fn delete_purged() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let sender = fixtures::login::create(&app, &fixtures::ancient()).await;
+    let channel = fixtures::channel::create(&app, &fixtures::ancient()).await;
+    let message = fixtures::message::send(&app, &channel, &sender, &fixtures::ancient()).await;
+
+    app.messages()
+        .expire(&fixtures::old())
+        .await
+        .expect("expiring messages always succeeds");
+
+    app.messages()
+        .purge(&fixtures::now())
+        .await
+        .expect("purging messages always succeeds");
+
+    // Send the request
+
+    let deleter = fixtures::identity::create(&app, &fixtures::now()).await;
+    let delete::Error(error) = delete::handler(
+        State(app.clone()),
+        Path(message.id.clone()),
+        fixtures::now(),
+        deleter,
+    )
+    .await
+    .expect_err("deleting a purged message fails");
+
+    // Verify the response
+
+    assert!(matches!(error, app::DeleteError::NotFound(id) if id == message.id));
+}
diff --git a/src/message/routes/mod.rs b/src/message/routes/mod.rs
new file mode 100644
index 0000000..dfe8628
--- /dev/null
+++ b/src/message/routes/mod.rs
@@ -0,0 +1,9 @@
+use axum::{routing::delete, Router};
+
+use crate::app::App;
+
+mod message;
+
+pub fn router() -> Router<App> {
+    Router::new().route("/api/messages/:message", delete(message::delete::handler))
+}