api for meal plan deletion

kitchen/src/web/mod.rs

@@ -258,6 +258,22 @@ async fn api_all_plans(
     }
 }
 
+async fn api_delete_plan_for_date(
+    Extension(app_store): Extension<Arc<storage::SqliteStore>>,
+    session: storage::UserIdFromSession,
+    Path(date): Path<chrono::NaiveDate>,
+) -> api::EmptyResponse {
+    use storage::{UserId, UserIdFromSession::FoundUserId};
+    if let FoundUserId(UserId(id)) = session {
+        app_store
+            .delete_meal_plan_for_date(id.as_str(), date)
+            .await
+            .into()
+    } else {
+        api::EmptyResponse::Unauthorized
+    }
+}
+
 async fn api_save_plan_for_date(
     Extension(app_store): Extension<Arc<storage::SqliteStore>>,
     session: storage::UserIdFromSession,

kitchen/src/web/storage/mod.rs

@@ -138,6 +138,12 @@ pub trait APIStore {
         user_id: S,
     ) -> Result<Option<Vec<NaiveDate>>>;
 
+    async fn delete_meal_plan_for_date<S: AsRef<str> + Send>(
+        &self,
+        user_id: S,
+        date: NaiveDate,
+    ) -> Result<()>;
+
     async fn save_meal_plan<S: AsRef<str> + Send>(
         &self,
         user_id: S,
@@ -615,6 +621,44 @@ impl APIStore for SqliteStore {
         Ok(Some(result))
     }
 
+    async fn delete_meal_plan_for_date<S: AsRef<str> + Send>(
+        &self,
+        user_id: S,
+        date: NaiveDate,
+    ) -> Result<()> {
+        let user_id = user_id.as_ref();
+        let mut transaction = self.pool.as_ref().begin().await?;
+        sqlx::query!(
+            "delete from plan_recipes where user_id = ? and plan_date = ?",
+            user_id,
+            date
+        )
+        .execute(&mut transaction)
+        .await?;
+        sqlx::query!(
+            "delete from filtered_ingredients where user_id = ? and plan_date = ?",
+            user_id,
+            date
+        )
+        .execute(&mut transaction)
+        .await?;
+        sqlx::query!(
+            "delete from modified_amts where user_id = ? and plan_date = ?",
+            user_id,
+            date
+        )
+        .execute(&mut transaction)
+        .await?;
+        sqlx::query!(
+            "delete from extra_items where user_id = ? and plan_date = ?",
+            user_id,
+            date
+        )
+        .execute(&mut transaction)
+        .await?;
+        Ok(())
+    }
+
     async fn fetch_meal_plan_for_date<S: AsRef<str> + Send>(
         &self,
         user_id: S,