Add vote_exists and additional delete/get vote count handler

src/votes/handlers.rs

@@ -1,17 +1,26 @@
 use axum::{
-    Router,
+    Json, Router,
     extract::{Path, State},
     http::StatusCode,
     response::IntoResponse,
-    routing::post,
+    routing::{delete, get, post},
 };
 use axum_extra::extract::{CookieJar, cookie::Cookie};
 use uuid::Uuid;
 
-use crate::{state::AppState, votes::repository::insert_new_vote};
+use crate::{
+    state::AppState,
+    votes::{
+        repository::{delete_vote, insert_new_vote},
+        service::get_votes_and_voted,
+    },
+};
 
 pub fn router() -> Router<AppState> {
-    Router::new().route("/posts/{slug}/vote", post(upvote_handler))
+    Router::new()
+        .route("/posts/{slug}/vote", post(upvote_handler))
+        .route("/posts/{slug}/vote", delete(downvote_handler))
+        .route("/posts/{slug}/votes", get(get_votes_and_voted_handler))
 }
 
 fn get_or_init_voter_id(jar: CookieJar) -> (CookieJar, Uuid) {
@@ -51,6 +60,37 @@ async fn upvote_handler(
     }
 }
 
+async fn downvote_handler(
+    jar: CookieJar,
+    Path(slug): Path<String>,
+    State(state): State<AppState>,
+) -> impl IntoResponse {
+    let (jar, voter_id) = get_or_init_voter_id(jar);
+
+    match delete_vote(&slug, &voter_id, &state.db).await {
+        Ok(()) => (StatusCode::OK, jar, "Successfully upvoted"),
+        Err(err) => {
+            println!("{err}");
+            (StatusCode::INTERNAL_SERVER_ERROR, jar, "Failed to upvote")
+        }
+    }
+}
+
+async fn get_votes_and_voted_handler(
+    jar: CookieJar,
+    Path(slug): Path<String>,
+    State(state): State<AppState>,
+) -> impl IntoResponse {
+    let (jar, voter_id) = get_or_init_voter_id(jar);
+    match get_votes_and_voted(&slug, &voter_id, &state.db).await {
+        Ok(votes_and_voted) => (StatusCode::OK, jar, Json(votes_and_voted)).into_response(),
+        Err(err) => {
+            println!("{err}");
+            (StatusCode::INTERNAL_SERVER_ERROR, jar, "Failed to upvote").into_response()
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use axum::{