search

backend/src/routes/documents.rs

@@ -10,12 +10,14 @@ use axum::response::IntoResponse;
 use chrono::{DateTime, NaiveDateTime, Utc};
 use diesel::dsl::exists;
 use diesel::{prelude::*, result::DatabaseErrorKind, select, PgConnection};
+use reqwest::Client;
 use serde::{Deserialize, Serialize};
 use serde_json::{json, Value};
 use sha2::{Digest, Sha256};
 use tracing::{error, info, warn};
 use uuid::Uuid;
 
+use super::folders::gather_descendant_folder_ids;
 use crate::auth::AuthenticatedUser;
 use crate::error::{AppError, AppResult};
 use crate::jobs::{enqueue_job, JOB_ANALYZE_DOCUMENT};
@@ -30,6 +32,7 @@ use crate::schema::{
 use crate::state::AppState;
 
 const PRESIGNED_URL_EXPIRY_SECONDS: u64 = 300;
+const QUICKWIT_MAX_HITS: usize = 200;
 pub const CORRESPONDENT_ROLES: &[&str] = &["sender", "receiver", "other"];
 
 fn normalize_role(value: &str) -> String {
@@ -66,6 +69,11 @@ pub struct DocumentListQuery {
     pub folder_id: Option<Uuid>,
     #[serde(default)]
     pub include_deleted: bool,
+    #[serde(default)]
+    pub include_descendants: Option<bool>,
+    pub query: Option<String>,
+    pub tags: Option<String>,
+    pub correspondents: Option<String>,
 }
 
 #[derive(Deserialize)]
@@ -328,29 +336,226 @@ pub struct AssignTagsRequest {
 
 pub async fn list_documents(
     State(state): State<AppState>,
-    Query(query): Query<DocumentListQuery>,
+    Query(params): Query<DocumentListQuery>,
     user: AuthenticatedUser,
 ) -> AppResult<Json<Vec<DocumentResponse>>> {
     let mut conn = state.db()?;
 
-    let mut base_query = documents::table.into_boxed();
+    let DocumentListQuery {
+        folder_id,
+        include_deleted,
+        include_descendants,
+        query,
+        tags,
+        correspondents,
+    } = params;
 
-    if !query.include_deleted {
-        base_query = base_query.filter(documents::deleted_at.is_null());
+    let mut docs_query = documents::table.into_boxed();
+
+    if !include_deleted {
+        docs_query = docs_query.filter(documents::deleted_at.is_null());
     }
 
-    match query.folder_id {
-        Some(folder_id) => {
-            base_query = base_query.filter(documents::folder_id.eq(Some(folder_id)));
+    let search_text = query
+        .as_ref()
+        .map(|s| s.trim())
+        .filter(|s| !s.is_empty())
+        .map(|s| s.to_owned());
+    let tags_param = tags
+        .as_ref()
+        .map(|s| s.trim())
+        .filter(|s| !s.is_empty())
+        .map(|s| s.to_owned());
+    let correspondents_param = correspondents
+        .as_ref()
+        .map(|s| s.trim())
+        .filter(|s| !s.is_empty())
+        .map(|s| s.to_owned());
+
+    let mut include_descendants = include_descendants.unwrap_or_else(|| folder_id.is_some());
+    if search_text.is_some() || tags_param.is_some() || correspondents_param.is_some() {
+        include_descendants = true;
+    }
+
+    match (folder_id, include_descendants) {
+        (Some(folder_id), true) => {
+            let descendant_ids = gather_descendant_folder_ids(&mut conn, folder_id)?;
+            docs_query = docs_query.filter(documents::folder_id.eq_any(descendant_ids));
         }
-        None => {
-            base_query = base_query.filter(documents::folder_id.is_null());
+        (Some(folder_id), false) => {
+            docs_query = docs_query.filter(documents::folder_id.eq(Some(folder_id)));
+        }
+        (None, false) => {
+            docs_query = docs_query.filter(documents::folder_id.is_null());
+        }
+        (None, true) => {}
+    }
+
+    let mut filter_ids: Option<HashSet<Uuid>> = None;
+    let mut quickwit_order: Option<Vec<Uuid>> = None;
+
+    if let Some(query_str) = search_text.as_ref() {
+        let endpoint = state
+            .config
+            .quickwit_endpoint
+            .as_ref()
+            .ok_or_else(|| AppError::internal("quickwit endpoint not configured"))?;
+        let index = state
+            .config
+            .quickwit_index
+            .as_ref()
+            .ok_or_else(|| AppError::internal("quickwit index not configured"))?;
+
+        let ids = quickwit_search(endpoint, index, query_str)
+            .await
+            .map_err(|err| AppError::internal(format!("quickwit search failed: {err}")))?;
+
+        if ids.is_empty() {
+            return Ok(Json(vec![]));
+        }
+
+        quickwit_order = Some(ids.clone());
+        let set: HashSet<Uuid> = ids.into_iter().collect();
+        filter_ids = Some(match &filter_ids {
+            Some(existing) => existing.intersection(&set).copied().collect(),
+            None => set,
+        });
+    }
+
+    if let Some(tags_param) = tags_param.as_ref() {
+        let tag_ids: Result<Vec<Uuid>, _> = tags_param
+            .split(',')
+            .map(|s| Uuid::parse_str(s.trim()))
+            .collect();
+
+        if let Ok(ids) = tag_ids {
+            if !ids.is_empty() {
+                let mut doc_id_set: Option<HashSet<Uuid>> = None;
+                for tag_id in &ids {
+                    let docs_for_tag: Vec<Uuid> = document_tags::table
+                        .filter(document_tags::tag_id.eq(*tag_id))
+                        .select(document_tags::document_id)
+                        .load(&mut conn)?;
+                    let docs_set: HashSet<Uuid> = docs_for_tag.into_iter().collect();
+                    doc_id_set = Some(match doc_id_set {
+                        Some(existing) => existing.intersection(&docs_set).cloned().collect(),
+                        None => docs_set,
+                    });
+
+                    if let Some(ref set) = doc_id_set {
+                        if set.is_empty() {
+                            break;
+                        }
+                    }
+                }
+
+                let matching_doc_ids: HashSet<Uuid> = doc_id_set.unwrap_or_default();
+
+                if matching_doc_ids.is_empty() {
+                    return Ok(Json(vec![]));
+                }
+
+                let new_filter = match &filter_ids {
+                    Some(existing) => existing.intersection(&matching_doc_ids).copied().collect(),
+                    None => matching_doc_ids.clone(),
+                };
+
+                filter_ids = Some(new_filter);
+            }
         }
     }
 
-    let docs: Vec<Document> = base_query
-        .order(documents::uploaded_at.desc())
-        .load(&mut conn)?;
+    if let Some(correspondents_param) = correspondents_param.as_ref() {
+        let correspondent_ids: Result<Vec<Uuid>, _> = correspondents_param
+            .split(',')
+            .map(|s| Uuid::parse_str(s.trim()))
+            .collect();
+
+        if let Ok(ids) = correspondent_ids {
+            if !ids.is_empty() {
+                let mut doc_id_set: Option<HashSet<Uuid>> = None;
+                for correspondent_id in &ids {
+                    let docs_for_correspondent: Vec<Uuid> = document_correspondents::table
+                        .filter(document_correspondents::correspondent_id.eq(*correspondent_id))
+                        .select(document_correspondents::document_id)
+                        .load(&mut conn)?;
+
+                    let docs_set: HashSet<Uuid> = docs_for_correspondent.into_iter().collect();
+                    doc_id_set = Some(match doc_id_set {
+                        Some(existing) => existing.intersection(&docs_set).cloned().collect(),
+                        None => docs_set,
+                    });
+
+                    if let Some(ref set) = doc_id_set {
+                        if set.is_empty() {
+                            break;
+                        }
+                    }
+                }
+
+                let matching_doc_ids: HashSet<Uuid> = doc_id_set.unwrap_or_default();
+
+                if matching_doc_ids.is_empty() {
+                    return Ok(Json(vec![]));
+                }
+
+                let new_filter = match &filter_ids {
+                    Some(existing) => existing.intersection(&matching_doc_ids).copied().collect(),
+                    None => matching_doc_ids.clone(),
+                };
+
+                filter_ids = Some(new_filter);
+            }
+        }
+    }
+
+    if let Some(ref set) = filter_ids {
+        if set.is_empty() {
+            return Ok(Json(vec![]));
+        }
+
+        let ids_vec: Vec<Uuid> = set.iter().copied().collect();
+        docs_query = docs_query.filter(documents::id.eq_any(ids_vec));
+    }
+
+    let docs: Vec<Document> = if let Some(order_ids) = quickwit_order.as_ref() {
+        let relevant_ids: Vec<Uuid> = if let Some(filter_set) = filter_ids.as_ref() {
+            order_ids
+                .iter()
+                .copied()
+                .filter(|id| filter_set.contains(id))
+                .collect()
+        } else {
+            order_ids.clone()
+        };
+
+        if relevant_ids.is_empty() {
+            return Ok(Json(vec![]));
+        }
+
+        let fetched: Vec<Document> = docs_query.load(&mut conn)?;
+        let mut by_id: HashMap<Uuid, Document> =
+            fetched.into_iter().map(|doc| (doc.id, doc)).collect();
+
+        let mut ordered = Vec::with_capacity(by_id.len());
+        for id in relevant_ids {
+            if let Some(doc) = by_id.remove(&id) {
+                ordered.push(doc);
+            }
+        }
+
+        if !by_id.is_empty() {
+            let mut remaining: Vec<Document> = by_id.into_values().collect();
+            remaining.sort_by(|a, b| b.uploaded_at.cmp(&a.uploaded_at));
+            ordered.extend(remaining);
+        }
+
+        ordered
+    } else {
+        docs_query
+            .order(documents::uploaded_at.desc())
+            .load(&mut conn)?
+    };
 
     let doc_ids: Vec<Uuid> = docs.iter().map(|doc| doc.id).collect();
     let tags_map = load_tags_for_documents(&mut conn, &doc_ids)?;
@@ -358,7 +563,6 @@ pub async fn list_documents(
     drop(conn);
 
     let primary_versions = load_primary_assets(&state, &docs).await?;
-
     let mut response = Vec::with_capacity(doc_ids.len());
     for doc in docs {
         let tags = tags_map.get(&doc.id).cloned();
@@ -1738,3 +1942,136 @@ async fn load_asset_responses(
 pub(crate) fn to_iso(dt: NaiveDateTime) -> String {
     DateTime::<Utc>::from_naive_utc_and_offset(dt, Utc).to_rfc3339()
 }
+
+async fn quickwit_search(endpoint: &str, index: &str, query: &str) -> anyhow::Result<Vec<Uuid>> {
+    let quickwit_query = match build_quickwit_query(query) {
+        Some(q) => q,
+        None => return Ok(vec![]),
+    };
+
+    let client = Client::new();
+    let url = format!("{}/api/v1/{}/search", endpoint.trim_end_matches('/'), index);
+
+    let payload = json!({
+        "query": quickwit_query,
+        "max_hits": QUICKWIT_MAX_HITS,
+    });
+
+    let response = client.post(url).json(&payload).send().await?;
+    if !response.status().is_success() {
+        let status = response.status();
+        let body = response.text().await.unwrap_or_default();
+        return Err(anyhow::anyhow!(
+            "quickwit search failed with status {status}: {body}"
+        ));
+    }
+
+    let data: QuickwitSearchResponse = response.json().await?;
+    let mut seen = HashSet::new();
+    let mut doc_ids = Vec::new();
+
+    for hit in data.hits {
+        if let Some(doc_id) = extract_document_id(&hit) {
+            if seen.insert(doc_id) {
+                doc_ids.push(doc_id);
+            }
+        }
+    }
+
+    Ok(doc_ids)
+}
+
+fn build_quickwit_query(input: &str) -> Option<String> {
+    let tokens: Vec<String> = input
+        .split_whitespace()
+        .filter(|token| !token.is_empty())
+        .map(|token| {
+            let normalized = token.to_lowercase();
+            escape_quickwit_token(&normalized)
+        })
+        .collect();
+
+    if tokens.is_empty() {
+        return None;
+    }
+
+    let parts: Vec<String> = tokens
+        .into_iter()
+        .map(|token| format!("(title:{token} OR text:{token})"))
+        .collect();
+
+    Some(parts.join(" AND "))
+}
+
+fn escape_quickwit_token(token: &str) -> String {
+    let mut escaped = String::with_capacity(token.len());
+    for ch in token.chars() {
+        match ch {
+            '+' | '-' | '&' | '|' | '!' | '(' | ')' | '{' | '}' | '[' | ']' | '^' | '"' | '~'
+            | '*' | '?' | ':' | '\\' | '/' => {
+                escaped.push('\\');
+                escaped.push(ch);
+            }
+            _ => escaped.push(ch),
+        }
+    }
+    escaped
+}
+
+#[derive(Deserialize)]
+struct QuickwitSearchResponse {
+    #[serde(default)]
+    hits: Vec<Value>,
+}
+
+fn extract_document_id(hit: &Value) -> Option<Uuid> {
+    for key in ["_source", "source", "fields", "stored_fields"] {
+        if let Some(value) = hit.get(key) {
+            if let Some(uuid) = extract_uuid_from_value(value) {
+                return Some(uuid);
+            }
+        }
+    }
+
+    if let Some(value) = hit.get("document_id") {
+        if let Some(uuid) = extract_uuid_from_value(value) {
+            return Some(uuid);
+        }
+    }
+
+    None
+}
+
+fn extract_uuid_from_value(value: &Value) -> Option<Uuid> {
+    if let Some(obj) = value.as_object() {
+        if let Some(inner) = obj.get("document_id") {
+            return parse_uuid_value(inner);
+        }
+    }
+
+    if let Some(arr) = value.as_array() {
+        for item in arr {
+            if let Some(uuid) = extract_uuid_from_value(item) {
+                return Some(uuid);
+            }
+        }
+    }
+
+    parse_uuid_value(value)
+}
+
+fn parse_uuid_value(value: &Value) -> Option<Uuid> {
+    if let Some(s) = value.as_str() {
+        return Uuid::parse_str(s).ok();
+    }
+
+    if let Some(arr) = value.as_array() {
+        for item in arr {
+            if let Some(uuid) = parse_uuid_value(item) {
+                return Some(uuid);
+            }
+        }
+    }
+
+    None
+}

backend/src/routes/folders.rs

@@ -1,17 +1,13 @@
-use anyhow::anyhow;
 use axum::{
-    extract::{Json, Path, Query, State},
+    extract::{Json, Path, State},
     http::StatusCode,
 };
 use diesel::{dsl::exists, prelude::*, PgConnection};
-use reqwest::Client;
 use serde::{Deserialize, Serialize};
-use serde_json::{json, Value};
-use std::collections::{HashMap, HashSet};
 use uuid::Uuid;
 
 use crate::models::{Document, Folder, NewFolder};
-use crate::schema::{document_correspondents, document_tags, documents, folders};
+use crate::schema::{documents, folders};
 use crate::state::AppState;
 use crate::{
     auth::AuthenticatedUser,
@@ -23,8 +19,6 @@ use super::documents::{
     to_document_response, to_iso, DocumentResponse,
 };
 
-const QUICKWIT_MAX_HITS: usize = 200;
-
 #[derive(Deserialize)]
 pub struct CreateFolderRequest {
     pub name: String,
@@ -56,13 +50,6 @@ pub struct FolderContentsResponse {
     pub documents: Vec<DocumentResponse>,
 }
 
-#[derive(Deserialize)]
-pub struct DocumentSearchQuery {
-    pub query: Option<String>,
-    pub tags: Option<String>,
-    pub correspondents: Option<String>,
-}
-
 #[derive(Serialize)]
 pub struct FolderInfo {
     pub id: Uuid,
@@ -244,370 +231,6 @@ pub async fn list_folder_contents(
     }))
 }
 
-pub async fn search_documents(
-    State(state): State<AppState>,
-    Path(folder_identifier): Path<String>,
-    Query(params): Query<DocumentSearchQuery>,
-    user: AuthenticatedUser,
-) -> AppResult<Json<Vec<DocumentResponse>>> {
-    let mut conn = state.db()?;
-
-    let folder_id = if folder_identifier.eq_ignore_ascii_case("root") {
-        None
-    } else {
-        Some(
-            Uuid::parse_str(&folder_identifier)
-                .map_err(|_| AppError::bad_request("folder identifier must be 'root' or a UUID"))?,
-        )
-    };
-
-    let mut docs_query = documents::table
-        .filter(documents::deleted_at.is_null())
-        .into_boxed();
-
-    if let Some(folder_id) = folder_id {
-        let descendant_ids = gather_descendant_folder_ids(&mut conn, folder_id)?;
-        docs_query = docs_query.filter(documents::folder_id.eq_any(descendant_ids));
-    }
-
-    let mut filter_ids: Option<HashSet<Uuid>> = None;
-    let mut quickwit_order: Option<Vec<Uuid>> = None;
-
-    if let Some(query) = params
-        .query
-        .as_ref()
-        .map(|s| s.trim())
-        .filter(|s| !s.is_empty())
-    {
-        let endpoint = state
-            .config
-            .quickwit_endpoint
-            .as_ref()
-            .ok_or_else(|| AppError::internal("quickwit endpoint not configured"))?;
-        let index = state
-            .config
-            .quickwit_index
-            .as_ref()
-            .ok_or_else(|| AppError::internal("quickwit index not configured"))?;
-
-        let ids = quickwit_search(endpoint, index, query)
-            .await
-            .map_err(|err| AppError::internal(format!("quickwit search failed: {err}")))?;
-
-        if ids.is_empty() {
-            return Ok(Json(vec![]));
-        }
-
-        quickwit_order = Some(ids.clone());
-        let set: HashSet<Uuid> = ids.into_iter().collect();
-        filter_ids = Some(match &filter_ids {
-            Some(existing) => existing.intersection(&set).copied().collect(),
-            None => set,
-        });
-    }
-
-    if let Some(tags_param) = params
-        .tags
-        .as_ref()
-        .map(|s| s.trim())
-        .filter(|s| !s.is_empty())
-    {
-        let tag_ids: Result<Vec<Uuid>, _> = tags_param
-            .split(',')
-            .map(|s| Uuid::parse_str(s.trim()))
-            .collect();
-
-        if let Ok(ids) = tag_ids {
-            if !ids.is_empty() {
-                let mut doc_id_set: Option<HashSet<Uuid>> = None;
-                for tag_id in &ids {
-                    let docs_for_tag: Vec<Uuid> = document_tags::table
-                        .filter(document_tags::tag_id.eq(*tag_id))
-                        .select(document_tags::document_id)
-                        .load(&mut conn)?;
-                    let docs_set: HashSet<Uuid> = docs_for_tag.into_iter().collect();
-                    doc_id_set = Some(match doc_id_set {
-                        Some(existing) => existing.intersection(&docs_set).cloned().collect(),
-                        None => docs_set,
-                    });
-
-                    if let Some(ref set) = doc_id_set {
-                        if set.is_empty() {
-                            break;
-                        }
-                    }
-                }
-
-                let matching_doc_ids: HashSet<Uuid> = doc_id_set.unwrap_or_default();
-
-                if matching_doc_ids.is_empty() {
-                    return Ok(Json(vec![]));
-                }
-
-                let new_filter = match &filter_ids {
-                    Some(existing) => existing.intersection(&matching_doc_ids).copied().collect(),
-                    None => matching_doc_ids.clone(),
-                };
-
-                filter_ids = Some(new_filter);
-            }
-        }
-    }
-
-    if let Some(correspondents_param) = params
-        .correspondents
-        .as_ref()
-        .map(|s| s.trim())
-        .filter(|s| !s.is_empty())
-    {
-        let correspondent_ids: Result<Vec<Uuid>, _> = correspondents_param
-            .split(',')
-            .map(|s| Uuid::parse_str(s.trim()))
-            .collect();
-
-        if let Ok(ids) = correspondent_ids {
-            if !ids.is_empty() {
-                let mut doc_id_set: Option<HashSet<Uuid>> = None;
-                for correspondent_id in &ids {
-                    let docs_for_correspondent: Vec<Uuid> = document_correspondents::table
-                        .filter(document_correspondents::correspondent_id.eq(*correspondent_id))
-                        .select(document_correspondents::document_id)
-                        .load(&mut conn)?;
-
-                    let docs_set: HashSet<Uuid> = docs_for_correspondent.into_iter().collect();
-                    doc_id_set = Some(match doc_id_set {
-                        Some(existing) => existing.intersection(&docs_set).cloned().collect(),
-                        None => docs_set,
-                    });
-
-                    if let Some(ref set) = doc_id_set {
-                        if set.is_empty() {
-                            break;
-                        }
-                    }
-                }
-
-                let matching_doc_ids: HashSet<Uuid> = doc_id_set.unwrap_or_default();
-
-                if matching_doc_ids.is_empty() {
-                    return Ok(Json(vec![]));
-                }
-
-                let new_filter = match &filter_ids {
-                    Some(existing) => existing.intersection(&matching_doc_ids).copied().collect(),
-                    None => matching_doc_ids.clone(),
-                };
-
-                filter_ids = Some(new_filter);
-            }
-        }
-    }
-
-    if let Some(ref set) = filter_ids {
-        if set.is_empty() {
-            return Ok(Json(vec![]));
-        }
-
-        let ids_vec: Vec<Uuid> = set.iter().copied().collect();
-        docs_query = docs_query.filter(documents::id.eq_any(ids_vec));
-    }
-
-    let docs: Vec<Document> = if let Some(order_ids) = quickwit_order.as_ref() {
-        let relevant_ids: Vec<Uuid> = if let Some(filter_set) = filter_ids.as_ref() {
-            order_ids
-                .iter()
-                .copied()
-                .filter(|id| filter_set.contains(id))
-                .collect()
-        } else {
-            order_ids.clone()
-        };
-
-        if relevant_ids.is_empty() {
-            return Ok(Json(vec![]));
-        }
-
-        let fetched: Vec<Document> = docs_query.load(&mut conn)?;
-        let mut by_id: HashMap<Uuid, Document> =
-            fetched.into_iter().map(|doc| (doc.id, doc)).collect();
-
-        let mut ordered = Vec::with_capacity(by_id.len());
-        for id in relevant_ids {
-            if let Some(doc) = by_id.remove(&id) {
-                ordered.push(doc);
-            }
-        }
-
-        if !by_id.is_empty() {
-            let mut remaining: Vec<Document> = by_id.into_values().collect();
-            remaining.sort_by(|a, b| b.uploaded_at.cmp(&a.uploaded_at));
-            ordered.extend(remaining);
-        }
-
-        ordered
-    } else {
-        docs_query
-            .order(documents::uploaded_at.desc())
-            .load(&mut conn)?
-    };
-
-    let doc_ids: Vec<Uuid> = docs.iter().map(|doc| doc.id).collect();
-    let tags_map = load_tags_for_documents(&mut conn, &doc_ids)?;
-    let mut correspondents_map = load_correspondents_for_documents(&mut conn, &doc_ids)?;
-    drop(conn);
-
-    let primary_versions = load_primary_assets(&state, &docs).await?;
-    let mut response = Vec::with_capacity(doc_ids.len());
-    for doc in docs {
-        let tags = tags_map.get(&doc.id).cloned();
-        let correspondents = correspondents_map.remove(&doc.id).unwrap_or_default();
-        let current_version = primary_versions.get(&doc.id).cloned();
-        response.push(to_document_response(
-            &state,
-            user.user_id,
-            doc,
-            tags,
-            correspondents,
-            current_version,
-        )?);
-    }
-
-    Ok(Json(response))
-}
-
-async fn quickwit_search(endpoint: &str, index: &str, query: &str) -> anyhow::Result<Vec<Uuid>> {
-    let quickwit_query = match build_quickwit_query(query) {
-        Some(q) => q,
-        None => return Ok(vec![]),
-    };
-
-    let client = Client::new();
-    let url = format!("{}/api/v1/{}/search", endpoint.trim_end_matches('/'), index);
-
-    let payload = json!({
-        "query": quickwit_query,
-        "max_hits": QUICKWIT_MAX_HITS,
-    });
-
-    let response = client.post(url).json(&payload).send().await?;
-    if !response.status().is_success() {
-        let status = response.status();
-        let body = response.text().await.unwrap_or_default();
-        return Err(anyhow!(
-            "quickwit search failed with status {status}: {body}"
-        ));
-    }
-
-    let data: QuickwitSearchResponse = response.json().await?;
-    let mut seen = HashSet::new();
-    let mut doc_ids = Vec::new();
-
-    for hit in data.hits {
-        if let Some(doc_id) = extract_document_id(&hit) {
-            if seen.insert(doc_id) {
-                doc_ids.push(doc_id);
-            }
-        }
-    }
-
-    Ok(doc_ids)
-}
-
-fn build_quickwit_query(input: &str) -> Option<String> {
-    let tokens: Vec<String> = input
-        .split_whitespace()
-        .filter(|token| !token.is_empty())
-        .map(|token| {
-            let normalized = token.to_lowercase();
-            escape_quickwit_token(&normalized)
-        })
-        .collect();
-
-    if tokens.is_empty() {
-        return None;
-    }
-
-    let parts: Vec<String> = tokens
-        .into_iter()
-        .map(|token| format!("(title:{token} OR text:{token})"))
-        .collect();
-
-    Some(parts.join(" AND "))
-}
-
-fn escape_quickwit_token(token: &str) -> String {
-    let mut escaped = String::with_capacity(token.len());
-    for ch in token.chars() {
-        match ch {
-            '+' | '-' | '&' | '|' | '!' | '(' | ')' | '{' | '}' | '[' | ']' | '^' | '"' | '~'
-            | '*' | '?' | ':' | '\\' | '/' => {
-                escaped.push('\\');
-                escaped.push(ch);
-            }
-            _ => escaped.push(ch),
-        }
-    }
-    escaped
-}
-
-#[derive(Deserialize)]
-struct QuickwitSearchResponse {
-    #[serde(default)]
-    hits: Vec<Value>,
-}
-
-fn extract_document_id(hit: &Value) -> Option<Uuid> {
-    for key in ["_source", "source", "fields", "stored_fields"] {
-        if let Some(value) = hit.get(key) {
-            if let Some(uuid) = extract_uuid_from_value(value) {
-                return Some(uuid);
-            }
-        }
-    }
-
-    if let Some(value) = hit.get("document_id") {
-        if let Some(uuid) = extract_uuid_from_value(value) {
-            return Some(uuid);
-        }
-    }
-
-    None
-}
-
-fn extract_uuid_from_value(value: &Value) -> Option<Uuid> {
-    if let Some(obj) = value.as_object() {
-        if let Some(inner) = obj.get("document_id") {
-            return parse_uuid_value(inner);
-        }
-    }
-
-    if let Some(arr) = value.as_array() {
-        for item in arr {
-            if let Some(uuid) = extract_uuid_from_value(item) {
-                return Some(uuid);
-            }
-        }
-    }
-
-    parse_uuid_value(value)
-}
-
-fn parse_uuid_value(value: &Value) -> Option<Uuid> {
-    if let Some(s) = value.as_str() {
-        return Uuid::parse_str(s).ok();
-    }
-
-    if let Some(arr) = value.as_array() {
-        for item in arr {
-            if let Some(uuid) = parse_uuid_value(item) {
-                return Some(uuid);
-            }
-        }
-    }
-
-    None
-}
-
 pub async fn delete_folder(
     State(state): State<AppState>,
     Path(folder_id): Path<Uuid>,
@@ -771,7 +394,10 @@ fn folder_to_info(folder: Folder) -> FolderInfo {
     }
 }
 
-fn gather_descendant_folder_ids(conn: &mut PgConnection, folder_id: Uuid) -> AppResult<Vec<Uuid>> {
+pub(super) fn gather_descendant_folder_ids(
+    conn: &mut PgConnection,
+    folder_id: Uuid,
+) -> AppResult<Vec<Uuid>> {
     let mut ids = vec![folder_id];
     let mut queue = vec![folder_id];
 

backend/src/routes/mod.rs

@@ -102,8 +102,7 @@ pub fn create_router(state: AppState) -> Router<()> {
             "/:id",
             delete(folders::delete_folder).patch(folders::update_folder),
         )
-        .route("/:id/contents", get(folders::list_folder_contents))
-        .route("/:id/documents", get(folders::search_documents));
+        .route("/:id/contents", get(folders::list_folder_contents));
 
     let tags_routes = Router::new()
         .route("/", get(tags::list_tags).post(tags::create_tag))