feat: GET /users (search/list) and GET /users/count

crates/presentation/src/handlers/users.rs

@@ -1,4 +1,4 @@
-use axum::{extract::{Path, State}, Json};
+use axum::{extract::{Path, Query, State}, Json};
 use api_types::{requests::UpdateProfileRequest, responses::{ErrorResponse, UserResponse}};
 use application::use_cases::profile::{get_user_by_username, update_profile};
 use crate::{errors::ApiError, extractors::AuthUser, handlers::auth::to_user_response, state::AppState};
@@ -43,3 +43,48 @@ pub async fn get_me(State(s): State<AppState>, AuthUser(uid): AuthUser) -> Resul
     let user = s.users.find_by_id(&uid).await?.ok_or(domain::errors::DomainError::NotFound)?;
     Ok(Json(to_user_response(&user)))
 }
+
+pub async fn get_users(
+    State(s): State<AppState>,
+    Query(params): Query<std::collections::HashMap<String, String>>,
+) -> Result<Json<serde_json::Value>, ApiError> {
+    use domain::models::feed::PageParams;
+    let page = params.get("page").and_then(|v| v.parse::<u64>().ok()).unwrap_or(1);
+    let per_page = params.get("per_page").and_then(|v| v.parse::<u64>().ok()).unwrap_or(20);
+    let page_params = PageParams { page, per_page };
+
+    if let Some(q) = params.get("q").filter(|q| !q.trim().is_empty()) {
+        let result = s.search.search_users(q, &page_params).await?;
+        let users: Vec<_> = result.items.iter().map(|u| crate::handlers::auth::to_user_response(u)).collect();
+        return Ok(Json(serde_json::json!({
+            "items": users, "total": result.total, "page": result.page, "per_page": result.per_page
+        })));
+    }
+
+    let all = s.users.list_with_stats().await?;
+    let total = all.len() as i64;
+    let start = ((page - 1) * per_page) as usize;
+    let items: Vec<_> = all.into_iter()
+        .skip(start).take(per_page as usize)
+        .map(|u| serde_json::json!({
+            "id": u.id.as_uuid(),
+            "username": u.username,
+            "display_name": u.display_name,
+            "avatar_url": u.avatar_url,
+            "bio": u.bio,
+            "thought_count": u.thought_count,
+            "follower_count": u.follower_count,
+            "following_count": u.following_count,
+        }))
+        .collect();
+    Ok(Json(serde_json::json!({
+        "items": items, "total": total, "page": page, "per_page": per_page
+    })))
+}
+
+pub async fn get_user_count(
+    State(s): State<AppState>,
+) -> Result<Json<serde_json::Value>, ApiError> {
+    let count = s.users.count().await?;
+    Ok(Json(serde_json::json!({ "count": count })))
+}