Allow books to be merged

client/components/app/Appbar.vue

@@ -36,6 +36,12 @@
           </ui-tooltip>
         </nuxt-link>
 
+        <nuxt-link v-if="userIsAdminOrUp && currentLibrary" :to="`/config/libraries?edit=${currentLibrary.id}`" class="hover:text-gray-200 cursor-pointer w-8 h-8 flex items-center justify-center mx-1">
+          <ui-tooltip :text="$strings.HeaderUpdateLibrary" direction="bottom" class="flex items-center">
+            <span class="material-symbols text-2xl" aria-label="Edit Library" role="button">&#xe3c9;</span>
+          </ui-tooltip>
+        </nuxt-link>
+
         <nuxt-link v-if="userIsAdminOrUp" to="/config" class="hover:text-gray-200 cursor-pointer w-8 h-8 flex items-center justify-center mx-1">
           <ui-tooltip :text="$strings.HeaderSettings" direction="bottom" class="flex items-center">
             <span class="material-symbols text-2xl" aria-label="System Settings" role="button">&#xe8b8;</span>
@@ -195,6 +201,14 @@ export default {
           text: this.$strings.LabelMoveToLibrary,
           action: 'move-to-library'
         })
+
+        // Merge option - only for books and if multiple selected
+        if (this.isBookLibrary && this.selectedMediaItems.length > 1) {
+          options.push({
+            text: this.$strings.LabelMerge,
+            action: 'merge'
+          })
+        }
       }
 
       return options
@@ -236,8 +250,41 @@ export default {
         this.batchDownload()
       } else if (action === 'move-to-library') {
         this.batchMoveToLibrary()
+      } else if (action === 'merge') {
+        this.batchMerge()
       }
     },
+    batchMerge() {
+      const payload = {
+        message: this.$strings.MessageConfirmBatchMerge,
+        callback: (confirmed) => {
+          if (confirmed) {
+            const libraryItemIds = this.selectedMediaItems.map((i) => i.id)
+            this.$store.commit('setProcessingBatch', true)
+            this.$axios
+              .$post('/api/items/batch/merge', { libraryItemIds })
+              .then((data) => {
+                if (data.success) {
+                  this.$toast.success(this.$strings.ToastBatchMergeSuccess)
+                } else {
+                  this.$toast.warning(this.$strings.ToastBatchMergePartiallySuccess)
+                }
+                this.cancelSelectionMode()
+              })
+              .catch((error) => {
+                console.error('Batch merge failed', error)
+                const errorMsg = error.response.data || this.$strings.ToastBatchMergeFailed
+                this.$toast.error(errorMsg)
+              })
+              .finally(() => {
+                this.$store.commit('setProcessingBatch', false)
+              })
+          }
+        },
+        type: 'yesNo'
+      }
+      this.$store.commit('globals/setConfirmPrompt', payload)
+    },
     batchMoveToLibrary() {
       // Clear any single library item that might be lingering
       this.$store.commit('setSelectedLibraryItem', null)

client/pages/config/libraries.vue

@@ -32,12 +32,32 @@ export default {
     }
   },
   computed: {},
+  watch: {
+    '$route.query.edit': {
+      handler(val) {
+        if (val) {
+          const library = this.$store.state.libraries.libraries.find((lib) => lib.id === val)
+          if (library) {
+            this.setShowLibraryModal(library)
+          }
+        }
+      }
+    }
+  },
   methods: {
     setShowLibraryModal(selectedLibrary) {
       this.selectedLibrary = selectedLibrary
       this.showLibraryModal = true
     }
   },
-  mounted() {}
+  mounted() {
+    const editLibraryId = this.$route.query.edit
+    if (editLibraryId) {
+      const library = this.$store.state.libraries.libraries.find((lib) => lib.id === editLibraryId)
+      if (library) {
+        this.setShowLibraryModal(library)
+      }
+    }
+  }
 }
 </script>

client/strings/en-us.json

@@ -460,6 +460,7 @@
   "LabelMaxEpisodesToKeepHelp": "Value of 0 sets no max limit. After a new episode is auto-downloaded this will delete the oldest episode if you have more than X episodes. This will only delete 1 episode per new download.",
   "LabelMediaPlayer": "Media Player",
   "LabelMediaType": "Media Type",
+  "LabelMerge": "Merge",
   "LabelMetaTag": "Meta Tag",
   "LabelMetaTags": "Meta Tags",
   "LabelMetadataOrderOfPrecedenceDescription": "Higher priority metadata sources will override lower priority metadata sources",
@@ -772,6 +773,7 @@
   "MessageChapterStartIsAfter": "Chapter start is after the end of your audiobook",
   "MessageChaptersNotFound": "Chapters not found",
   "MessageCheckingCron": "Checking cron...",
+  "MessageConfirmBatchMerge": "Are you sure you want to merge the selected books into a single book? The files will be moved to the first selected book's folder, and other books will be deleted.",
   "MessageConfirmCloseFeed": "Are you sure you want to close this feed?",
   "MessageConfirmDeleteApiKey": "Are you sure you want to delete API key \"{0}\"?",
   "MessageConfirmDeleteBackup": "Are you sure you want to delete backup for {0}?",
@@ -1018,6 +1020,9 @@
   "ToastBatchApplyDetailsToItemsSuccess": "Details applied to items",
   "ToastBatchDeleteFailed": "Batch delete failed",
   "ToastBatchDeleteSuccess": "Batch delete success",
+  "ToastBatchMergeFailed": "Failed to merge books",
+  "ToastBatchMergePartiallySuccess": "Books merged with some errors",
+  "ToastBatchMergeSuccess": "Books merged successfully",
   "ToastBatchQuickMatchFailed": "Batch Quick Match failed!",
   "ToastBatchQuickMatchStarted": "Batch Quick Match of {0} books started!",
   "ToastBatchUpdateFailed": "Batch update failed",