Allow removing authors with no books

server/controllers/LibraryController.js

@@ -1412,6 +1412,57 @@ class LibraryController {
     })
   }
 
+  /**
+   * DELETE: /api/libraries/:id/authors/cleanup
+   * Remove authors with no books, no description and no image
+   *
+   * @this {import('../routers/ApiRouter')}
+   *
+   * @param {LibraryControllerRequest} req
+   * @param {Response} res
+   */
+  async cleanupAuthorsWithNoBooks(req, res) {
+    if (!req.user.isAdminOrUp) {
+      Logger.error(`[LibraryController] Non-admin user "${req.user.username}" attempted to cleanup authors`)
+      return res.sendStatus(403)
+    }
+
+    const force = req.query.force === '1'
+
+    const authors = await Database.authorModel.findAll({
+      where: {
+        libraryId: req.library.id
+      },
+      attributes: ['id']
+    })
+
+    if (!authors.length) {
+      return res.json({
+        removed: 0
+      })
+    }
+
+    const authorIds = authors.map((a) => a.id)
+    const initialCount = authorIds.length
+
+    // This method is defined on ApiRouter
+    await this.checkRemoveAuthorsWithNoBooks(authorIds, force)
+
+    // Check how many are left
+    const remainingCount = await Database.authorModel.count({
+      where: {
+        id: authorIds
+      }
+    })
+
+    const removed = initialCount - remainingCount
+    Logger.info(`[LibraryController] Cleaned up ${removed} authors (force=${force}) with no books for library "${req.library.name}"`)
+
+    res.json({
+      removed
+    })
+  }
+
   /**
    * GET: /api/library/:id/download
    * Downloads multiple library items

server/routers/ApiRouter.js

@@ -84,6 +84,7 @@ class ApiRouter {
     this.router.get('/libraries/:id/search', LibraryController.middleware.bind(this), LibraryController.search.bind(this))
     this.router.get('/libraries/:id/stats', LibraryController.middleware.bind(this), LibraryController.stats.bind(this))
     this.router.get('/libraries/:id/authors', LibraryController.middleware.bind(this), LibraryController.getAuthors.bind(this))
+    this.router.delete('/libraries/:id/authors/cleanup', LibraryController.middleware.bind(this), LibraryController.cleanupAuthorsWithNoBooks.bind(this))
     this.router.get('/libraries/:id/narrators', LibraryController.middleware.bind(this), LibraryController.getNarrators.bind(this))
     this.router.patch('/libraries/:id/narrators/:narratorId', LibraryController.middleware.bind(this), LibraryController.updateNarrator.bind(this))
     this.router.delete('/libraries/:id/narrators/:narratorId', LibraryController.middleware.bind(this), LibraryController.removeNarrator.bind(this))
@@ -464,29 +465,38 @@ class ApiRouter {
    * @param {string[]} authorIds
    * @returns {Promise<void>}
    */
-  async checkRemoveAuthorsWithNoBooks(authorIds) {
+  async checkRemoveAuthorsWithNoBooks(authorIds, force = false) {
     if (!authorIds?.length) return
 
     const transaction = await Database.sequelize.transaction()
     try {
+      const where = [
+        sequelize.where(sequelize.literal('(SELECT count(*) FROM bookAuthors ba WHERE ba.authorId = author.id)'), 0)
+      ]
+
+      if (!force) {
+        where.push({
+          id: authorIds,
+          asin: {
+            [sequelize.Op.or]: [null, '']
+          },
+          description: {
+            [sequelize.Op.or]: [null, '']
+          },
+          imagePath: {
+            [sequelize.Op.or]: [null, '']
+          }
+        })
+      } else {
+        where.push({
+          id: authorIds
+        })
+      }
+
       // Select authors with locking to prevent concurrent updates
       const bookAuthorsToRemove = (
         await Database.authorModel.findAll({
-          where: [
-            {
-              id: authorIds,
-              asin: {
-                [sequelize.Op.or]: [null, '']
-              },
-              description: {
-                [sequelize.Op.or]: [null, '']
-              },
-              imagePath: {
-                [sequelize.Op.or]: [null, '']
-              }
-            },
-            sequelize.where(sequelize.literal('(SELECT count(*) FROM bookAuthors ba WHERE ba.authorId = author.id)'), 0)
-          ],
+          where,
           attributes: ['id', 'name', 'libraryId'],
           raw: true,
           transaction