feat: implement full-text search functionality with API integration, add search router and persistence logic, and create related schemas and tests

thoughts-backend/api/src/routers/mod.rs

@@ -5,6 +5,7 @@ pub mod auth;
 pub mod feed;
 pub mod friends;
 pub mod root;
+pub mod search;
 pub mod tag;
 pub mod thought;
 pub mod user;
@@ -30,6 +31,7 @@ pub fn create_router(state: AppState) -> Router {
         .nest("/feed", create_feed_router())
         .nest("/tags", tag::create_tag_router())
         .nest("/friends", friends::create_friends_router())
+        .nest("/search", search::create_search_router())
         .with_state(state)
         .layer(cors)
 }

thoughts-backend/api/src/routers/search.rs

@@ -0,0 +1,53 @@
+use crate::{error::ApiError, extractor::OptionalAuthUser};
+use app::{persistence::search, state::AppState};
+use axum::{
+    extract::{Query, State},
+    response::IntoResponse,
+    routing::get,
+    Json, Router,
+};
+use models::schemas::{
+    search::SearchResultsSchema,
+    thought::{ThoughtListSchema, ThoughtSchema},
+    user::UserListSchema,
+};
+use serde::Deserialize;
+use utoipa::IntoParams;
+
+#[derive(Deserialize, IntoParams)]
+pub struct SearchQuery {
+    q: String,
+}
+
+#[utoipa::path(
+    get,
+    path = "",
+    params(SearchQuery),
+    responses((status = 200, body = SearchResultsSchema))
+)]
+async fn search_all(
+    State(state): State<AppState>,
+    viewer: OptionalAuthUser,
+    Query(query): Query<SearchQuery>,
+) -> Result<impl IntoResponse, ApiError> {
+    let viewer_id = viewer.0.map(|u| u.id);
+
+    let (users, thoughts) = tokio::try_join!(
+        search::search_users(&state.conn, &query.q),
+        search::search_thoughts(&state.conn, &query.q, viewer_id)
+    )?;
+
+    let thought_schemas: Vec<ThoughtSchema> =
+        thoughts.into_iter().map(ThoughtSchema::from).collect();
+
+    let response = SearchResultsSchema {
+        users: UserListSchema::from(users),
+        thoughts: ThoughtListSchema::from(thought_schemas),
+    };
+
+    Ok(Json(response))
+}
+
+pub fn create_search_router() -> Router<AppState> {
+    Router::new().route("/", get(search_all))
+}