feat: implement empty folder functionality for junk and trash mailboxes with confirmation dialog

app/[locale]/page.tsx

@@ -473,12 +473,14 @@ export default function Home() {
   const handleDelete = async () => {
     if (!client || !selectedEmail) return;
 
-    // Check if we're currently in the trash folder
+    // Check if we're currently in the trash or junk folder
     const currentMailbox = mailboxes.find(m => m.id === selectedMailbox);
     const isInTrash = currentMailbox?.role === 'trash';
+    const isInJunk = currentMailbox?.role === 'junk';
+    const permanentlyDeleteJunk = useSettingsStore.getState().permanentlyDeleteJunk;
 
-    if (isInTrash) {
+    if (isInTrash || (isInJunk && permanentlyDeleteJunk)) {
-      // In trash: confirm before permanently deleting
+      // In trash or junk with permanent delete enabled: confirm before permanently deleting
       const confirmed = await confirmDialog({
         title: t('email_list.permanent_delete_confirm_title'),
         message: t('email_list.permanent_delete_confirm_message'),

components/email/email-list.tsx

@@ -4,7 +4,7 @@ import { Email, ThreadGroup } from "@/lib/jmap/types";
 import { ThreadListItem } from "./thread-list-item";
 import { EmailContextMenu } from "./email-context-menu";
 import { cn } from "@/lib/utils";
-import { Trash2, Mail, MailX, MailOpen, Loader2, SearchX } from "lucide-react";
+import { Trash2, Mail, MailX, MailOpen, Loader2, SearchX, AlertTriangle } from "lucide-react";
 import { useState, useEffect, useRef, useCallback, useMemo } from "react";
 import { Button } from "@/components/ui/button";
 import { ConfirmDialog } from "@/components/ui/confirm-dialog";
@@ -74,6 +74,7 @@ export function EmailList({
     isLoadingMore,
     mailboxes,
     selectedMailbox,
+    emptyMailbox,
     expandedThreadIds,
     threadEmailsCache,
     isLoadingThread,
@@ -172,6 +173,28 @@ export function EmailList({
     }
   };
 
+  const currentMailbox = mailboxes.find(m => m.id === selectedMailbox);
+  const isEmptyableFolder = currentMailbox?.role === 'trash' || currentMailbox?.role === 'junk';
+
+  const handleEmptyFolder = async () => {
+    if (!client || isProcessing || !currentMailbox) return;
+
+    const confirmed = await confirmDialog({
+      title: t('empty_folder.confirm_title'),
+      message: t('empty_folder.confirm_message'),
+      confirmText: t('empty_folder.confirm_button'),
+      variant: "destructive",
+    });
+    if (!confirmed) return;
+
+    setIsProcessing(true);
+    try {
+      await emptyMailbox(client, currentMailbox.id);
+    } finally {
+      setTimeout(() => setIsProcessing(false), 500);
+    }
+  };
+
   const handleLoadMore = useCallback(() => {
     if (client && hasMoreEmails && !isLoadingMore && !isLoading) {
       loadMoreEmails(client);
@@ -308,7 +331,29 @@ export function EmailList({
         />
       )}
 
-
+      {/* Empty Folder Banner for Junk/Trash */}
+      {isEmptyableFolder && emails.length > 0 && !hasSelection && (
+        <div className="px-4 py-2 border-b border-border bg-muted/30 flex items-center justify-between">
+          <div className="flex items-center gap-2 text-sm text-muted-foreground">
+            <AlertTriangle className="w-4 h-4" />
+            <span>{currentMailbox?.role === 'junk' ? t('empty_folder.junk_hint') : t('empty_folder.trash_hint')}</span>
+          </div>
+          <Button
+            variant="outline"
+            size="sm"
+            onClick={handleEmptyFolder}
+            disabled={isProcessing}
+            className="text-destructive border-destructive/30 hover:bg-destructive/10 text-xs"
+          >
+            {isProcessing ? (
+              <Loader2 className="w-3 h-3 animate-spin mr-1" />
+            ) : (
+              <Trash2 className="w-3 h-3 mr-1" />
+            )}
+            {t('empty_folder.button')}
+          </Button>
+        </div>
+      )}
 
       {/* Email List */}
       <div ref={parentRef} className="flex-1 overflow-y-auto bg-background relative">

components/settings/email-settings.tsx

@@ -14,6 +14,7 @@ export function EmailSettings() {
   const {
     markAsReadDelay,
     deleteAction,
+    permanentlyDeleteJunk,
     showPreview,
     emailsPerPage,
     externalContentPolicy,
@@ -65,6 +66,14 @@ export function EmailSettings() {
         </div>
       </SettingItem>
 
+      {/* Permanently Delete Junk */}
+      <SettingItem label={t('permanently_delete_junk.label')} description={t('permanently_delete_junk.description')}>
+        <ToggleSwitch
+          checked={permanentlyDeleteJunk}
+          onChange={(checked) => updateSetting('permanentlyDeleteJunk', checked)}
+        />
+      </SettingItem>
+
       {/* Show Preview */}
       <SettingItem label={t('show_preview.label')} description={t('show_preview.description')}>
         <ToggleSwitch checked={showPreview} onChange={(checked) => updateSetting('showPreview', checked)} />

lib/jmap/client.ts

@@ -808,6 +808,34 @@ export class JMAPClient {
     }
   }
 
+  async emptyMailbox(mailboxId: string): Promise<number> {
+    let totalDestroyed = 0;
+    let hasMore = true;
+
+    while (hasMore) {
+      const response = await this.request([
+        ["Email/query", {
+          accountId: this.accountId,
+          filter: { inMailbox: mailboxId },
+          limit: 500,
+        }, "0"],
+        ["Email/set", {
+          accountId: this.accountId,
+          "#destroy": { resultOf: "0", name: "Email/query", path: "/ids" },
+        }, "1"],
+      ]);
+
+      const queryResult = response.methodResponses?.[0]?.[1];
+      const setResult = response.methodResponses?.[1]?.[1];
+      const destroyed = setResult?.destroyed?.length || 0;
+      totalDestroyed += destroyed;
+
+      hasMore = destroyed > 0 && (queryResult?.total || 0) > destroyed;
+    }
+
+    return totalDestroyed;
+  }
+
   async markAsSpam(emailId: string, accountId?: string): Promise<void> {
     const targetAccountId = accountId || this.accountId;
 

locales/de/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Endgültig löschen",
     "permanent_delete_confirm_title": "Endgültig löschen",
     "permanent_delete_confirm_message": "Diese E-Mail wird endgültig gelöscht. Diese Aktion kann nicht rückgängig gemacht werden.",
-    "permanent_delete_confirm_batch_message": "Diese {count, plural, one {1 E-Mail} other {# E-Mails}} werden endgültig gelöscht. Diese Aktion kann nicht rückgängig gemacht werden."
+    "permanent_delete_confirm_batch_message": "Diese {count, plural, one {1 E-Mail} other {# E-Mails}} werden endgültig gelöscht. Diese Aktion kann nicht rückgängig gemacht werden.",
+    "empty_folder": {
+      "button": "Ordner leeren",
+      "confirm_title": "Ordner leeren",
+      "confirm_message": "Alle E-Mails in diesem Ordner werden dauerhaft gelöscht. Diese Aktion kann nicht rückgängig gemacht werden.",
+      "confirm_button": "Ordner leeren",
+      "junk_hint": "Sie können den Spam-Ordner leeren, um alle Nachrichten dauerhaft zu entfernen.",
+      "trash_hint": "Sie können den Papierkorb leeren, um alle Nachrichten dauerhaft zu entfernen."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Keine E-Mail ausgewählt",
@@ -594,6 +602,10 @@
         "permanent": "Dauerhaft löschen",
         "warning": "E-Mails werden dauerhaft gelöscht und können nicht wiederhergestellt werden. Diese Aktion ist unwiderruflich."
       },
+      "permanently_delete_junk": {
+        "label": "Spam dauerhaft löschen",
+        "description": "E-Mails aus dem Spam-Ordner dauerhaft löschen, anstatt sie in den Papierkorb zu verschieben"
+      },
       "show_preview": {
         "label": "Vorschautext anzeigen",
         "description": "E-Mail-Vorschau in der Liste anzeigen"

locales/en/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Delete permanently",
     "permanent_delete_confirm_title": "Permanently delete",
     "permanent_delete_confirm_message": "This email will be permanently deleted. This action cannot be undone.",
-    "permanent_delete_confirm_batch_message": "These {count, plural, one {1 email} other {# emails}} will be permanently deleted. This action cannot be undone."
+    "permanent_delete_confirm_batch_message": "These {count, plural, one {1 email} other {# emails}} will be permanently deleted. This action cannot be undone.",
+    "empty_folder": {
+      "button": "Empty folder",
+      "confirm_title": "Empty folder",
+      "confirm_message": "All emails in this folder will be permanently deleted. This action cannot be undone.",
+      "confirm_button": "Empty folder",
+      "junk_hint": "You can empty the Junk folder to permanently remove all messages.",
+      "trash_hint": "You can empty the Trash folder to permanently remove all messages."
+    }
   },
   "email_viewer": {
     "no_email_selected": "No email selected",
@@ -598,6 +606,10 @@
         "permanent": "Delete Permanently",
         "warning": "Emails will be permanently deleted and cannot be recovered. This action is irreversible."
       },
+      "permanently_delete_junk": {
+        "label": "Permanently Delete Junk",
+        "description": "Permanently delete emails from the Junk/Spam folder instead of moving them to Trash"
+      },
       "show_preview": {
         "label": "Show Preview Text",
         "description": "Display email preview in the list"

locales/es/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Eliminar permanentemente",
     "permanent_delete_confirm_title": "Eliminar permanentemente",
     "permanent_delete_confirm_message": "Este correo se eliminará permanentemente. Esta acción no se puede deshacer.",
-    "permanent_delete_confirm_batch_message": "Estos {count, plural, one {1 correo} other {# correos}} se eliminarán permanentemente. Esta acción no se puede deshacer."
+    "permanent_delete_confirm_batch_message": "Estos {count, plural, one {1 correo} other {# correos}} se eliminarán permanentemente. Esta acción no se puede deshacer.",
+    "empty_folder": {
+      "button": "Vaciar carpeta",
+      "confirm_title": "Vaciar carpeta",
+      "confirm_message": "Todos los correos de esta carpeta se eliminarán permanentemente. Esta acción no se puede deshacer.",
+      "confirm_button": "Vaciar carpeta",
+      "junk_hint": "Puede vaciar la carpeta de Spam para eliminar permanentemente todos los mensajes.",
+      "trash_hint": "Puede vaciar la Papelera para eliminar permanentemente todos los mensajes."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Ningún correo seleccionado",
@@ -594,6 +602,10 @@
         "permanent": "Eliminar Permanentemente",
         "warning": "Los correos se eliminarán permanentemente y no se podrán recuperar. Esta acción es irreversible."
       },
+      "permanently_delete_junk": {
+        "label": "Eliminar spam permanentemente",
+        "description": "Eliminar permanentemente los correos de la carpeta Spam en lugar de moverlos a la Papelera"
+      },
       "show_preview": {
         "label": "Mostrar Vista Previa",
         "description": "Mostrar vista previa del correo en la lista"

locales/fr/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Supprimer définitivement",
     "permanent_delete_confirm_title": "Supprimer définitivement",
     "permanent_delete_confirm_message": "Cet e-mail sera définitivement supprimé. Cette action est irréversible.",
-    "permanent_delete_confirm_batch_message": "Ces {count, plural, one {1 e-mail} other {# e-mails}} seront définitivement supprimés. Cette action est irréversible."
+    "permanent_delete_confirm_batch_message": "Ces {count, plural, one {1 e-mail} other {# e-mails}} seront définitivement supprimés. Cette action est irréversible.",
+    "empty_folder": {
+      "button": "Vider le dossier",
+      "confirm_title": "Vider le dossier",
+      "confirm_message": "Tous les e-mails de ce dossier seront définitivement supprimés. Cette action est irréversible.",
+      "confirm_button": "Vider le dossier",
+      "junk_hint": "Vous pouvez vider le dossier Indésirables pour supprimer définitivement tous les messages.",
+      "trash_hint": "Vous pouvez vider la corbeille pour supprimer définitivement tous les messages."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Aucun email sélectionné",
@@ -594,6 +602,10 @@
         "permanent": "Supprimer définitivement",
         "warning": "Les emails seront supprimés définitivement et ne pourront pas être récupérés. Cette action est irréversible."
       },
+      "permanently_delete_junk": {
+        "label": "Supprimer définitivement les indésirables",
+        "description": "Supprimer définitivement les e-mails du dossier Indésirables au lieu de les déplacer vers la corbeille"
+      },
       "show_preview": {
         "label": "Afficher l'aperçu",
         "description": "Afficher l'aperçu de l'email dans la liste"

locales/it/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Elimina definitivamente",
     "permanent_delete_confirm_title": "Elimina definitivamente",
     "permanent_delete_confirm_message": "Questa e-mail verrà eliminata definitivamente. Questa azione non può essere annullata.",
-    "permanent_delete_confirm_batch_message": "Queste {count, plural, one {1 e-mail} other {# e-mail}} verranno eliminate definitivamente. Questa azione non può essere annullata."
+    "permanent_delete_confirm_batch_message": "Queste {count, plural, one {1 e-mail} other {# e-mail}} verranno eliminate definitivamente. Questa azione non può essere annullata.",
+    "empty_folder": {
+      "button": "Svuota cartella",
+      "confirm_title": "Svuota cartella",
+      "confirm_message": "Tutti i messaggi in questa cartella verranno eliminati definitivamente. Questa azione non può essere annullata.",
+      "confirm_button": "Svuota cartella",
+      "junk_hint": "Puoi svuotare la cartella Spam per rimuovere definitivamente tutti i messaggi.",
+      "trash_hint": "Puoi svuotare il Cestino per rimuovere definitivamente tutti i messaggi."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Nessun messaggio selezionato",
@@ -594,6 +602,10 @@
         "permanent": "Elimina definitivamente",
         "warning": "I messaggi verranno eliminati definitivamente e non potranno essere recuperati. Questa azione è irreversibile."
       },
+      "permanently_delete_junk": {
+        "label": "Elimina spam definitivamente",
+        "description": "Elimina definitivamente i messaggi dalla cartella Spam invece di spostarli nel cestino"
+      },
       "show_preview": {
         "label": "Mostra anteprima testo",
         "description": "Visualizza l'anteprima del messaggio nell'elenco"

locales/ja/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "完全に削除",
     "permanent_delete_confirm_title": "完全に削除",
     "permanent_delete_confirm_message": "このメールは完全に削除されます。この操作は取り消せません。",
-    "permanent_delete_confirm_batch_message": "{count, plural, one {1件} other {#件}}のメールが完全に削除されます。この操作は取り消せません。"
+    "permanent_delete_confirm_batch_message": "{count, plural, one {1件} other {#件}}のメールが完全に削除されます。この操作は取り消せません。",
+    "empty_folder": {
+      "button": "フォルダを空にする",
+      "confirm_title": "フォルダを空にする",
+      "confirm_message": "このフォルダ内のすべてのメールが完全に削除されます。この操作は取り消せません。",
+      "confirm_button": "フォルダを空にする",
+      "junk_hint": "迷惑メールフォルダを空にして、すべてのメールを完全に削除できます。",
+      "trash_hint": "ゴミ箱を空にして、すべてのメールを完全に削除できます。"
+    }
   },
   "email_viewer": {
     "no_email_selected": "メールが選択されていません",
@@ -594,6 +602,10 @@
         "permanent": "完全に削除",
         "warning": "メールは完全に削除され、復元できません。この操作は元に戻せません。"
       },
+      "permanently_delete_junk": {
+        "label": "迷惑メールを完全に削除",
+        "description": "迷惑メールフォルダのメールをゴミ箱に移動せずに完全に削除する"
+      },
       "show_preview": {
         "label": "プレビューテキストを表示",
         "description": "リストにメールのプレビューを表示"

locales/nl/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Definitief verwijderen",
     "permanent_delete_confirm_title": "Definitief verwijderen",
     "permanent_delete_confirm_message": "Deze e-mail wordt definitief verwijderd. Deze actie kan niet ongedaan worden gemaakt.",
-    "permanent_delete_confirm_batch_message": "Deze {count, plural, one {1 e-mail} other {# e-mails}} worden definitief verwijderd. Deze actie kan niet ongedaan worden gemaakt."
+    "permanent_delete_confirm_batch_message": "Deze {count, plural, one {1 e-mail} other {# e-mails}} worden definitief verwijderd. Deze actie kan niet ongedaan worden gemaakt.",
+    "empty_folder": {
+      "button": "Map legen",
+      "confirm_title": "Map legen",
+      "confirm_message": "Alle e-mails in deze map worden permanent verwijderd. Deze actie kan niet ongedaan worden gemaakt.",
+      "confirm_button": "Map legen",
+      "junk_hint": "U kunt de map Spam legen om alle berichten permanent te verwijderen.",
+      "trash_hint": "U kunt de prullenbak legen om alle berichten permanent te verwijderen."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Geen e-mail geselecteerd",
@@ -594,6 +602,10 @@
         "permanent": "Permanent verwijderen",
         "warning": "E-mails worden permanent verwijderd en kunnen niet worden hersteld. Deze actie is onomkeerbaar."
       },
+      "permanently_delete_junk": {
+        "label": "Spam permanent verwijderen",
+        "description": "E-mails uit de map Spam permanent verwijderen in plaats van naar de prullenbak te verplaatsen"
+      },
       "show_preview": {
         "label": "Voorbeeldtekst tonen",
         "description": "E-mailvoorbeeld weergeven in de lijst"

locales/pt/common.json

@@ -130,7 +130,15 @@
     "permanent_delete": "Excluir permanentemente",
     "permanent_delete_confirm_title": "Excluir permanentemente",
     "permanent_delete_confirm_message": "Este e-mail será permanentemente excluído. Esta ação não pode ser desfeita.",
-    "permanent_delete_confirm_batch_message": "Estes {count, plural, one {1 e-mail} other {# e-mails}} serão permanentemente excluídos. Esta ação não pode ser desfeita."
+    "permanent_delete_confirm_batch_message": "Estes {count, plural, one {1 e-mail} other {# e-mails}} serão permanentemente excluídos. Esta ação não pode ser desfeita.",
+    "empty_folder": {
+      "button": "Esvaziar pasta",
+      "confirm_title": "Esvaziar pasta",
+      "confirm_message": "Todos os e-mails nesta pasta serão permanentemente excluídos. Esta ação não pode ser desfeita.",
+      "confirm_button": "Esvaziar pasta",
+      "junk_hint": "Você pode esvaziar a pasta de Spam para remover permanentemente todas as mensagens.",
+      "trash_hint": "Você pode esvaziar a Lixeira para remover permanentemente todas as mensagens."
+    }
   },
   "email_viewer": {
     "no_email_selected": "Nenhum e-mail selecionado",
@@ -594,6 +602,10 @@
         "permanent": "Excluir Permanentemente",
         "warning": "Os e-mails serão excluídos permanentemente e não poderão ser recuperados. Esta ação é irreversível."
       },
+      "permanently_delete_junk": {
+        "label": "Excluir spam permanentemente",
+        "description": "Excluir permanentemente e-mails da pasta Spam em vez de movê-los para a Lixeira"
+      },
       "show_preview": {
         "label": "Mostrar Texto de Visualização",
         "description": "Exibir visualização do e-mail na lista"

stores/email-store.ts

@@ -102,6 +102,7 @@ interface EmailStore {
   renameMailbox: (client: JMAPClient, mailboxId: string, name: string) => Promise<void>;
   deleteMailbox: (client: JMAPClient, mailboxId: string) => Promise<void>;
   setMailboxRole: (client: JMAPClient, mailboxId: string, role: string | null) => Promise<void>;
+  emptyMailbox: (client: JMAPClient, mailboxId: string) => Promise<void>;
 
   // Mock data for demo
   loadMockData: () => void;
@@ -411,6 +412,7 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
 
       // Get delete action preference from settings
       const deleteAction = useSettingsStore.getState().deleteAction;
+      const permanentlyDeleteJunk = useSettingsStore.getState().permanentlyDeleteJunk;
 
       // Determine accountId for shared folders
       const selectedMailboxId = get().selectedMailbox;
@@ -418,6 +420,12 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
       const currentMailbox = mailboxes.find(mb => mb.id === selectedMailboxId);
       const accountId = currentMailbox?.isShared ? currentMailbox.accountId : undefined;
 
+      // If in junk folder and setting is enabled, permanently delete
+      const isInJunk = currentMailbox?.role === 'junk';
+      if (isInJunk && permanentlyDeleteJunk) {
+        forceDelete = true;
+      }
+
       // If deleteAction is 'trash' and not forced permanent delete, try to move to trash mailbox
       if (deleteAction === 'trash' && !forceDelete) {
         // Find trash mailbox for the correct account
@@ -1287,6 +1295,35 @@ export const useEmailStore = create<EmailStore>((set, get) => ({
     }
   },
 
+  emptyMailbox: async (client, mailboxId) => {
+    try {
+      set({ isLoading: true, error: null });
+      await client.emptyMailbox(mailboxId);
+
+      // Clear emails from local state if we're viewing this mailbox
+      const currentMailbox = get().selectedMailbox;
+      if (currentMailbox === mailboxId) {
+        set({ emails: [], selectedEmail: null });
+      }
+
+      // Update mailbox counters
+      set({
+        mailboxes: get().mailboxes.map(mb =>
+          mb.id === mailboxId
+            ? { ...mb, totalEmails: 0, unreadEmails: 0, totalThreads: 0, unreadThreads: 0 }
+            : mb
+        ),
+        isLoading: false,
+      });
+    } catch (error) {
+      set({
+        error: error instanceof Error ? error.message : 'Failed to empty folder',
+        isLoading: false,
+      });
+      throw error;
+    }
+  },
+
   loadMockData: () => {
     const mockEmails: Email[] = [
       {

stores/settings-store.ts

@@ -77,6 +77,7 @@ interface SettingsState {
   // Email Behavior
   markAsReadDelay: number; // milliseconds (0 = instant, -1 = never)
   deleteAction: DeleteAction;
+  permanentlyDeleteJunk: boolean; // Permanently delete emails from junk/spam instead of moving to trash
   showPreview: boolean;
   emailsPerPage: number;
   externalContentPolicy: ExternalContentPolicy;
@@ -154,6 +155,7 @@ const DEFAULT_SETTINGS = {
   // Email Behavior
   markAsReadDelay: 0, // Instant
   deleteAction: 'trash' as DeleteAction,
+  permanentlyDeleteJunk: false,
   showPreview: true,
   emailsPerPage: 50,
   externalContentPolicy: 'ask' as ExternalContentPolicy,