fix: include series_metadata authors in authors listing and detail pages

Authors were only sourced from books.authors/books.author fields which are
often empty. Now also aggregates authors from series_metadata.authors
(populated by metadata providers like bedetheque). Adds author filter to
/series endpoint and updates the author detail page to use it.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/api/src/authors.rs

@@ -68,7 +68,7 @@ pub async fn list_authors(
         .filter(|s| !s.trim().is_empty())
         .map(|s| format!("%{s}%"));
 
-    // Aggregate unique authors from books.authors + books.author
+    // Aggregate unique authors from books.authors + books.author + series_metadata.authors
     let sql = format!(
         r#"
         WITH all_authors AS (
@@ -79,18 +79,21 @@ pub async fn list_authors(
                 )
             ) AS name
             FROM books
+            UNION
+            SELECT DISTINCT UNNEST(authors) AS name
+            FROM series_metadata
+            WHERE authors != '{{}}'
         ),
         filtered AS (
             SELECT name FROM all_authors
             WHERE ($1::text IS NULL OR name ILIKE $1)
         ),
-        counted AS (
+        book_counts AS (
             SELECT
-                f.name,
+                f.name AS author_name,
-                COUNT(DISTINCT b.id) AS book_count,
+                COUNT(DISTINCT b.id) AS book_count
-                COUNT(DISTINCT NULLIF(b.series, '')) AS series_count
             FROM filtered f
-            JOIN books b ON (
+            LEFT JOIN books b ON (
                 f.name = ANY(
                     COALESCE(
                         NULLIF(b.authors, '{{}}'),
@@ -99,9 +102,24 @@ pub async fn list_authors(
                 )
             )
             GROUP BY f.name
+        ),
+        series_counts AS (
+            SELECT
+                f.name AS author_name,
+                COUNT(DISTINCT (sm.library_id, sm.name)) AS series_count
+            FROM filtered f
+            LEFT JOIN series_metadata sm ON (
+                f.name = ANY(sm.authors) AND sm.authors != '{{}}'
+            )
+            GROUP BY f.name
         )
-        SELECT name, book_count, series_count
+        SELECT
-        FROM counted
+            f.name,
+            COALESCE(bc.book_count, 0) AS book_count,
+            COALESCE(sc.series_count, 0) AS series_count
+        FROM filtered f
+        LEFT JOIN book_counts bc ON bc.author_name = f.name
+        LEFT JOIN series_counts sc ON sc.author_name = f.name
         ORDER BY {order_clause}
         LIMIT $2 OFFSET $3
         "#
@@ -116,6 +134,10 @@ pub async fn list_authors(
                 )
             ) AS name
             FROM books
+            UNION
+            SELECT DISTINCT UNNEST(authors) AS name
+            FROM series_metadata
+            WHERE authors != '{}'
         )
         SELECT COUNT(*) AS total
         FROM all_authors

apps/api/src/books.rs

@@ -143,7 +143,7 @@ pub async fn list_books(
         p += 1; format!("AND COALESCE(brp.status, 'unread') = ANY(${p})")
     } else { String::new() };
     let author_cond = if query.author.is_some() {
-        p += 1; format!("AND (${p} = ANY(COALESCE(NULLIF(b.authors, '{{}}'), CASE WHEN b.author IS NOT NULL AND b.author != '' THEN ARRAY[b.author] ELSE ARRAY[]::text[] END)))")
+        p += 1; format!("AND (${p} = ANY(COALESCE(NULLIF(b.authors, '{{}}'), CASE WHEN b.author IS NOT NULL AND b.author != '' THEN ARRAY[b.author] ELSE ARRAY[]::text[] END)) OR EXISTS (SELECT 1 FROM series_metadata sm WHERE sm.library_id = b.library_id AND sm.name = b.series AND ${p} = ANY(sm.authors)))")
     } else { String::new() };
     let metadata_cond = match query.metadata_provider.as_deref() {
         Some("unlinked") => "AND eml.id IS NULL".to_string(),

apps/api/src/series.rs

@@ -292,6 +292,9 @@ pub struct ListAllSeriesQuery {
     /// Filter by metadata provider: a provider name (e.g. "google_books"), "linked" (any provider), or "unlinked" (no provider)
     #[schema(value_type = Option<String>, example = "google_books")]
     pub metadata_provider: Option<String>,
+    /// Filter by author name (matches in series_metadata.authors or book-level authors)
+    #[schema(value_type = Option<String>, example = "Toriyama")]
+    pub author: Option<String>,
     #[schema(value_type = Option<i64>, example = 1)]
     pub page: Option<i64>,
     #[schema(value_type = Option<i64>, example = 50)]
@@ -311,6 +314,7 @@ pub struct ListAllSeriesQuery {
         ("library_id" = Option<String>, Query, description = "Filter by library ID"),
         ("reading_status" = Option<String>, Query, description = "Filter by reading status, comma-separated (e.g. 'unread,reading')"),
         ("metadata_provider" = Option<String>, Query, description = "Filter by metadata provider: a provider name (e.g. 'google_books'), 'linked' (any provider), or 'unlinked' (no provider)"),
+        ("author" = Option<String>, Query, description = "Filter by author name (matches in series_metadata.authors or book-level authors)"),
         ("page" = Option<i64>, Query, description = "Page number (1-indexed, default 1)"),
         ("limit" = Option<i64>, Query, description = "Items per page (max 200, default 50)"),
         ("sort" = Option<String>, Query, description = "Sort order: 'title' (default) or 'latest' (most recently added first)"),
@@ -372,6 +376,10 @@ pub async fn list_all_series(
         None => String::new(),
     };
 
+    let author_cond = if query.author.is_some() {
+        p += 1; format!("AND (${p} = ANY(sm.authors) OR EXISTS (SELECT 1 FROM books bk WHERE bk.series = sc.name AND bk.library_id = sc.library_id AND ${p} = ANY(COALESCE(NULLIF(bk.authors, '{{}}'), CASE WHEN bk.author IS NOT NULL AND bk.author != '' THEN ARRAY[bk.author] ELSE ARRAY[]::text[] END))))")
+    } else { String::new() };
+
     // Missing counts CTE — needs library_id filter when filtering by library
     let missing_cte = if query.library_id.is_some() {
         r#"
@@ -427,7 +435,7 @@ pub async fn list_all_series(
         LEFT JOIN series_metadata sm ON sm.library_id = sc.library_id AND sm.name = sc.name
         LEFT JOIN missing_counts mc ON mc.series_name = sc.name AND mc.library_id = sc.library_id
         LEFT JOIN metadata_links ml ON ml.series_name = sc.name AND ml.library_id = sc.library_id
-        WHERE TRUE {q_cond} {rs_cond} {ss_cond} {missing_cond} {metadata_provider_cond}
+        WHERE TRUE {q_cond} {rs_cond} {ss_cond} {missing_cond} {metadata_provider_cond} {author_cond}
         "#
     );
 
@@ -492,6 +500,7 @@ pub async fn list_all_series(
           {ss_cond}
           {missing_cond}
           {metadata_provider_cond}
+          {author_cond}
         ORDER BY {series_order_clause}
         LIMIT ${limit_p} OFFSET ${offset_p}
         "#
@@ -524,6 +533,10 @@ pub async fn list_all_series(
             data_builder = data_builder.bind(mp);
         }
     }
+    if let Some(ref author) = query.author {
+        count_builder = count_builder.bind(author.clone());
+        data_builder = data_builder.bind(author.clone());
+    }
 
     data_builder = data_builder.bind(limit).bind(offset);
 

apps/backoffice/app/authors/[name]/page.tsx

@@ -21,26 +21,19 @@ export default async function AuthorDetailPage({
   const page = typeof searchParamsAwaited.page === "string" ? parseInt(searchParamsAwaited.page) : 1;
   const limit = typeof searchParamsAwaited.limit === "string" ? parseInt(searchParamsAwaited.limit) : 20;
 
-  // Fetch books by this author (server-side filtering via API) and series
+  // Fetch books by this author (server-side filtering via API) and series by this author
   const [booksPage, seriesPage] = await Promise.all([
     fetchBooks(undefined, undefined, page, limit, undefined, undefined, authorName).catch(
       () => ({ items: [], total: 0, page: 1, limit }) as BooksPageDto
     ),
-    fetchAllSeries(undefined, undefined, undefined, 1, 200).catch(
+    fetchAllSeries(undefined, undefined, undefined, 1, 200, undefined, undefined, undefined, undefined, authorName).catch(
       () => ({ items: [], total: 0, page: 1, limit: 200 }) as SeriesPageDto
     ),
   ]);
 
   const totalPages = Math.ceil(booksPage.total / limit);
 
-  // Extract unique series names from this author's books
+  const authorSeries = seriesPage.items;
-  const authorSeriesNames = new Set(
-    booksPage.items
-      .map((b) => b.series)
-      .filter((s): s is string => s != null && s !== "")
-  );
-
-  const authorSeries = seriesPage.items.filter((s) => authorSeriesNames.has(s.name));
 
   return (
     <>

apps/backoffice/lib/api.ts

@@ -342,6 +342,7 @@ export async function fetchAllSeries(
   seriesStatus?: string,
   hasMissing?: boolean,
   metadataProvider?: string,
+  author?: string,
 ): Promise<SeriesPageDto> {
   const params = new URLSearchParams();
   if (libraryId) params.set("library_id", libraryId);
@@ -351,6 +352,7 @@ export async function fetchAllSeries(
   if (seriesStatus) params.set("series_status", seriesStatus);
   if (hasMissing) params.set("has_missing", "true");
   if (metadataProvider) params.set("metadata_provider", metadataProvider);
+  if (author) params.set("author", author);
   params.set("page", page.toString());
   params.set("limit", limit.toString());