Much simpler

docs/advanced_usage.md

@@ -136,13 +136,15 @@ for suggested generation and embedding models.
 ### AI-assisted suggestions
 
 With AI enabled, Paperless-ngx can suggest a title, tags, correspondent, document type,
-storage path and dates by sending the document to the LLM. This is **opt-in per request**
-and surfaces through the "Suggest" control on the document detail page, alongside the
-classic classifier-based suggestions — it does not disable them. Suggestions are requested
-automatically when you open a document that carries an inbox tag unless "Automatically request
-suggestions for inbox documents" under Settings > Documents is disabled. Suggestion output
-language can be steered with
-[`PAPERLESS_AI_LLM_OUTPUT_LANGUAGE`](configuration.md#PAPERLESS_AI_LLM_OUTPUT_LANGUAGE)
+storage path and dates by sending the document to the LLM using "Suggest" button on the document
+detail page. You can choose which type of suggestions are requested by default under Settings >
+Documents, either ML (classifier-based) suggestions, AI suggestions, or both. When both are requested
+the results are combined.
+
+Suggestions are requested automatically when you open a document that carries an inbox tag
+unless "Automatically request suggestions for inbox documents" under Settings > Documents is disabled.
+
+Suggestion output language can be steered with [`PAPERLESS_AI_LLM_OUTPUT_LANGUAGE`](configuration.md#PAPERLESS_AI_LLM_OUTPUT_LANGUAGE)
 (otherwise it follows the user's UI language).
 
 ### The LLM index (RAG) and similar documents

src-ui/src/app/components/admin/settings/settings.component.html

@@ -253,6 +253,24 @@
               </div>
             </div>
 
+            @if (aiEnabled) {
+              <div class="row mb-3">
+                <div class="col-md-3 col-form-label pt-0">
+                  <span i18n>Suggestions default to</span>
+                </div>
+                <div class="col">
+                  <fieldset class="btn-group btn-group-sm">
+                    <input type="radio" class="btn-check" id="suggestionSourceBoth" [value]="SuggestionSource.Both" formControlName="documentEditingSuggestionSource">
+                    <label class="btn btn-outline-primary" for="suggestionSourceBoth"><ng-container i18n>Both</ng-container></label>
+                    <input type="radio" class="btn-check" id="suggestionSourceML" [value]="SuggestionSource.ML" formControlName="documentEditingSuggestionSource">
+                    <label class="btn btn-outline-primary" for="suggestionSourceML"><i-bs class="me-1" name="cpu"></i-bs><ng-container i18n>ML only</ng-container></label>
+                    <input type="radio" class="btn-check" id="suggestionSourceAI" [value]="SuggestionSource.AI" formControlName="documentEditingSuggestionSource">
+                    <label class="btn btn-outline-primary" for="suggestionSourceAI"><i-bs class="me-1" name="stars"></i-bs><ng-container i18n>AI only</ng-container></label>
+                  </fieldset>
+                </div>
+              </div>
+            }
+
             <div class="row">
               <div class="col">
                 <pngx-input-check i18n-title title="Automatically request suggestions for inbox documents" i18n-hint hint="If un-checked, suggestions must be requested via the Suggest button." formControlName="documentEditingAutoSuggest"></pngx-input-check>

src-ui/src/app/components/admin/settings/settings.component.spec.ts

@@ -307,7 +307,7 @@ describe('SettingsComponent', () => {
     expect(toastErrorSpy).toHaveBeenCalled()
     expect(storeSpy).toHaveBeenCalled()
     expect(appearanceSettingsSpy).not.toHaveBeenCalled()
-    expect(setSpy).toHaveBeenCalledTimes(34)
+    expect(setSpy).toHaveBeenCalledTimes(35)
     expect(setSpy).toHaveBeenCalledWith(SETTINGS_KEYS.SIDEBAR_HIDDEN_ITEMS, [
       HideableSidebarItemID.Workflows,
     ])

src-ui/src/app/components/admin/settings/settings.component.ts

@@ -44,6 +44,7 @@ import {
   HIDEABLE_SIDEBAR_ITEM_IDS,
   HideableSidebarItemID,
   SETTINGS_KEYS,
+  SuggestionSource,
 } from 'src/app/data/ui-settings'
 import { User } from 'src/app/data/user'
 import { IfPermissionsDirective } from 'src/app/directives/if-permissions.directive'
@@ -184,6 +185,7 @@ export class SettingsComponent
     documentEditingRemoveInboxTags: new FormControl(null),
     documentEditingOverlayThumbnail: new FormControl(null),
     documentEditingAutoSuggest: new FormControl(null),
+    documentEditingSuggestionSource: new FormControl(null),
     documentDetailsHiddenFields: new FormControl([]),
     searchDbOnly: new FormControl(null),
     searchLink: new FormControl(null),
@@ -217,6 +219,11 @@ export class SettingsComponent
   public readonly PdfZoomScale = PdfZoomScale
 
   public readonly PdfEditorEditMode = PdfEditorEditMode
+  public readonly SuggestionSource = SuggestionSource
+
+  get aiEnabled(): boolean {
+    return this.settings.get(SETTINGS_KEYS.AI_ENABLED)
+  }
 
   public readonly documentDetailFieldOptions = documentDetailFieldOptions
   public readonly sidebarItemOptions = HIDEABLE_SIDEBAR_ITEM_IDS.map((id) => ({
@@ -404,6 +411,9 @@ export class SettingsComponent
       documentEditingAutoSuggest: this.settings.get(
         SETTINGS_KEYS.DOCUMENT_EDITING_AUTO_SUGGEST
       ),
+      documentEditingSuggestionSource: this.settings.get(
+        SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE
+      ),
       documentDetailsHiddenFields: this.settings.get(
         SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS
       ),
@@ -625,6 +635,10 @@ export class SettingsComponent
       SETTINGS_KEYS.DOCUMENT_EDITING_AUTO_SUGGEST,
       this.settingsForm.value.documentEditingAutoSuggest
     )
+    this.settings.set(
+      SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE,
+      this.settingsForm.value.documentEditingSuggestionSource
+    )
     this.settings.set(
       SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS,
       this.settingsForm.value.documentDetailsHiddenFields

src-ui/src/app/components/common/suggestions-dropdown/suggestions-dropdown.component.html

@@ -1,58 +1,84 @@
-<div class="btn-group">
-  <button type="button" class="btn btn-sm btn-outline-primary" (click)="clickSuggest()" [disabled]="disabled() || loading() || (suggestions() && !aiEnabled())" [aria-label]="noSuggestions ? 'No suggestions' : 'Suggest'" i18n-aria-label>
-    @if (loading()) {
-      <div class="spinner-border spinner-border-sm" role="status"></div>
-    } @else if (noSuggestions) {
-      <i-bs width="1.2em" height="1.2em" name="check-circle"></i-bs>
-    } @else {
-      <i-bs width="1.2em" height="1.2em" name="stars"></i-bs>
+<div class="d-flex align-items-center">
+  <div class="btn-group">
+    <button type="button" class="btn btn-sm btn-outline-primary" (click)="clickSuggest()" [disabled]="disabled() || loading() || (suggestions() && !aiEnabled())" [aria-label]="noSuggestions ? 'No suggestions' : 'Suggest'" i18n-aria-label>
+      @if (loading()) {
+        <div class="spinner-border spinner-border-sm" role="status"></div>
+      } @else if (noSuggestions) {
+        <i-bs width="1.2em" height="1.2em" name="check-circle"></i-bs>
+      } @else {
+        <i-bs width="1.2em" height="1.2em" name="stars"></i-bs>
+      }
+      @if (noSuggestions) {
+        <span class="d-none d-lg-inline ps-1" i18n>No suggestions</span>
+      } @else {
+        <span class="d-none d-lg-inline ps-1" i18n>Suggest</span>
+      }
+      @if (totalSuggestions > 0) {
+        <span class="badge bg-primary ms-2">{{ totalSuggestions }}</span>
+      }
+    </button>
+
+    @if (aiEnabled()) {
+      <div class="btn-group" ngbDropdown #dropdown="ngbDropdown" [popperOptions]="popperOptions">
+        <button type="button" class="btn btn-sm btn-outline-primary" ngbDropdownToggle [disabled]="disabled() || loading() || !suggestions()" aria-expanded="false" aria-controls="suggestionsDropdown" aria-label="Suggestions dropdown">
+          <span class="visually-hidden" i18n>Show suggestions</span>
+        </button>
+
+        <div ngbDropdownMenu aria-labelledby="suggestionsDropdown" class="shadow suggestions-dropdown">
+          <div class="list-group list-group-flush small pb-0">
+            @if (novelSuggestions === 0 && reusableSuggestions === 0) {
+              <div class="list-group-item text-muted fst-italic">
+                <small class="text-muted small fst-italic" i18n>No novel suggestions</small>
+              </div>
+            }
+            @if (suggestions()?.suggested_tags?.length > 0) {
+              <small class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="tags"></i-bs><ng-container i18n>Tags</ng-container></small>
+              @for (tag of suggestions().suggested_tags; track tag) {
+                <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addTag.emit(tag)">{{ tag }}</button>
+              }
+            }
+            @if (suggestions()?.suggested_document_types?.length > 0) {
+              <div class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="hash"></i-bs><ng-container i18n>Document Types</ng-container></div>
+              @for (type of suggestions().suggested_document_types; track type) {
+                <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addDocumentType.emit(type)">{{ type }}</button>
+              }
+            }
+            @if (suggestions()?.suggested_correspondents?.length > 0) {
+              <div class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="person"></i-bs><ng-container i18n>Correspondents</ng-container></div>
+              @for (correspondent of suggestions().suggested_correspondents; track correspondent) {
+                <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addCorrespondent.emit(correspondent)">{{ correspondent }}</button>
+              }
+            }
+            @if (reusableSuggestions > 0) {
+              <div class="list-group-item text-muted fst-italic">
+                <small class="text-muted small fst-italic" i18n>{reusableSuggestions, plural, =1 {1 existing value suggested below} other {{{reusableSuggestions}} existing values suggested below}}</small>
+              </div>
+            }
+          </div>
+        </div>
+      </div>
     }
-    @if (noSuggestions) {
-      <span class="d-none d-lg-inline ps-1" i18n>No suggestions</span>
-    } @else {
-      <span class="d-none d-lg-inline ps-1" i18n>Suggest</span>
-    }
-    @if (totalSuggestions > 0) {
-      <span class="badge bg-primary ms-2">{{ totalSuggestions }}</span>
-    }
-  </button>
+  </div>
 
   @if (aiEnabled()) {
-    <div class="btn-group" ngbDropdown #dropdown="ngbDropdown" [popperOptions]="popperOptions">
-      <button type="button" class="btn btn-sm btn-outline-primary" ngbDropdownToggle [disabled]="disabled() || loading() || !suggestions()" aria-expanded="false" aria-controls="suggestionsDropdown" aria-label="Suggestions dropdown">
-        <span class="visually-hidden" i18n>Show suggestions</span>
+    <div ngbDropdown autoClose="outside" placement="bottom-end" [popperOptions]="popperOptions">
+      <button type="button" class="btn btn-sm btn-link position-relative" ngbDropdownToggle [disabled]="disabled() || loading()" i18n-title title="Suggestion options">
+        <i-bs name="three-dots"></i-bs>
+        @if (source() !== defaultSource()) {
+          <span class="position-absolute top-0 start-100 translate-middle p-1 bg-primary border border-light rounded-circle">
+            <span class="visually-hidden" i18n>Not using default</span>
+          </span>
+        }
       </button>
-
-      <div ngbDropdownMenu aria-labelledby="suggestionsDropdown" class="shadow suggestions-dropdown">
-        <div class="list-group list-group-flush small pb-0">
-          @if (novelSuggestions === 0 && reusableSuggestions === 0) {
-            <div class="list-group-item text-muted fst-italic">
-              <small class="text-muted small fst-italic" i18n>No novel suggestions</small>
-            </div>
-          }
-          @if (suggestions()?.suggested_tags?.length > 0) {
-            <small class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="tags"></i-bs><ng-container i18n>Tags</ng-container></small>
-            @for (tag of suggestions().suggested_tags; track tag) {
-              <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addTag.emit(tag)">{{ tag }}</button>
-            }
-          }
-          @if (suggestions()?.suggested_document_types?.length > 0) {
-            <div class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="hash"></i-bs><ng-container i18n>Document Types</ng-container></div>
-            @for (type of suggestions().suggested_document_types; track type) {
-              <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addDocumentType.emit(type)">{{ type }}</button>
-            }
-          }
-          @if (suggestions()?.suggested_correspondents?.length > 0) {
-            <div class="list-group-item text-uppercase text-muted small"><i-bs class="me-2" name="person"></i-bs><ng-container i18n>Correspondents</ng-container></div>
-            @for (correspondent of suggestions().suggested_correspondents; track correspondent) {
-              <button type="button" class="list-group-item list-group-item-action bg-light" (click)="addCorrespondent.emit(correspondent)">{{ correspondent }}</button>
-            }
-          }
-          @if (reusableSuggestions > 0) {
-            <div class="list-group-item text-muted fst-italic">
-              <small class="text-muted small fst-italic" i18n>{reusableSuggestions, plural, =1 {1 existing value suggested below} other {{{reusableSuggestions}} existing values suggested below}}</small>
-            </div>
-          }
+      <div ngbDropdownMenu class="shadow p-3">
+        <div class="small text-muted mb-2" i18n>Suggest using:</div>
+        <div class="form-check small">
+          <input class="form-check-input" type="checkbox" id="suggestionSourceML" [checked]="useML" [disabled]="useML && !useAI" (change)="setSources($event.target.checked, useAI)">
+          <label class="form-check-label d-inline-flex align-items-center gap-1" for="suggestionSourceML"><i-bs name="cpu"></i-bs><ng-container i18n>ML</ng-container></label>
+        </div>
+        <div class="form-check small">
+          <input class="form-check-input" type="checkbox" id="suggestionSourceAI" [checked]="useAI" [disabled]="useAI && !useML" (change)="setSources(useML, $event.target.checked)">
+          <label class="form-check-label d-inline-flex align-items-center gap-1" for="suggestionSourceAI"><i-bs name="stars"></i-bs><ng-container i18n>AI</ng-container></label>
         </div>
       </div>
     </div>

src-ui/src/app/components/common/suggestions-dropdown/suggestions-dropdown.component.scss

@@ -1,3 +1,7 @@
 .suggestions-dropdown {
   min-width: 250px;
 }
+
+.btn-link.dropdown-toggle::after {
+  display: none;
+}

src-ui/src/app/components/common/suggestions-dropdown/suggestions-dropdown.component.spec.ts

@@ -1,6 +1,7 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing'
 import { NgbDropdownModule } from '@ng-bootstrap/ng-bootstrap'
 import { NgxBootstrapIconsModule, allIcons } from 'ngx-bootstrap-icons'
+import { SuggestionSource } from 'src/app/data/ui-settings'
 import { SuggestionsDropdownComponent } from './suggestions-dropdown.component'
 
 describe('SuggestionsDropdownComponent', () => {
@@ -179,14 +180,71 @@ describe('SuggestionsDropdownComponent', () => {
 
   it('should toggle dropdown when clickSuggest is called and suggestions are not null', () => {
     fixture.componentRef.setInput('aiEnabled', true)
+    fixture.componentRef.setInput('fetchedSources', [SuggestionSource.ML])
     fixture.detectChanges()
     fixture.componentRef.setInput('suggestions', {
       suggested_correspondents: [],
       suggested_tags: [],
       suggested_document_types: [],
     })
+    fixture.detectChanges()
     component.clickSuggest()
-    expect(component.dropdown.open).toBeTruthy()
+    expect(component.dropdown.isOpen()).toBeTruthy()
     expect(fixture.nativeElement.textContent).toContain('No novel suggestions')
   })
+
+  it('should fetch unfetched sources and show existing suggestions', () => {
+    jest.spyOn(component.getSuggestions, 'emit')
+    fixture.componentRef.setInput('aiEnabled', true)
+    fixture.componentRef.setInput('source', SuggestionSource.Both)
+    fixture.componentRef.setInput('fetchedSources', [SuggestionSource.ML])
+    fixture.componentRef.setInput('suggestions', { tags: [1] })
+    fixture.detectChanges()
+    component.clickSuggest()
+    expect(component.getSuggestions.emit).toHaveBeenCalledWith(
+      SuggestionSource.Both
+    )
+    expect(component.dropdown.isOpen()).toBeTruthy()
+  })
+
+  it('should only show source options when AI is enabled', () => {
+    expect(
+      fixture.nativeElement.querySelector('#suggestionSourceML')
+    ).toBeNull()
+    fixture.componentRef.setInput('aiEnabled', true)
+    fixture.detectChanges()
+    fixture.nativeElement
+      .querySelector('button[title="Suggestion options"]')
+      .click()
+    fixture.detectChanges()
+    expect(
+      fixture.nativeElement.querySelector('#suggestionSourceML')
+    ).not.toBeNull()
+  })
+
+  it('should emit source changes and never allow no source', () => {
+    const emitSpy = jest.spyOn(component.sourceChange, 'emit')
+    component.setSources(true, true)
+    expect(emitSpy).toHaveBeenCalledWith(SuggestionSource.Both)
+    component.setSources(true, false)
+    expect(emitSpy).toHaveBeenCalledWith(SuggestionSource.ML)
+    component.setSources(false, true)
+    expect(emitSpy).toHaveBeenCalledWith(SuggestionSource.AI)
+
+    emitSpy.mockClear()
+    component.setSources(false, false)
+    expect(emitSpy).not.toHaveBeenCalled()
+  })
+
+  it('should indicate a non-default source', () => {
+    fixture.componentRef.setInput('aiEnabled', true)
+    fixture.componentRef.setInput('source', SuggestionSource.AI)
+    fixture.componentRef.setInput('defaultSource', SuggestionSource.AI)
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).not.toContain('Not using default')
+
+    fixture.componentRef.setInput('source', SuggestionSource.Both)
+    fixture.detectChanges()
+    expect(fixture.nativeElement.textContent).toContain('Not using default')
+  })
 })

src-ui/src/app/components/common/suggestions-dropdown/suggestions-dropdown.component.ts

@@ -8,6 +8,7 @@ import {
 import { NgbDropdown, NgbDropdownModule } from '@ng-bootstrap/ng-bootstrap'
 import { NgxBootstrapIconsModule } from 'ngx-bootstrap-icons'
 import { DocumentSuggestions } from 'src/app/data/document-suggestions'
+import { SuggestionSource } from 'src/app/data/ui-settings'
 import { pngxPopperOptions } from 'src/app/utils/popper-options'
 
 @Component({
@@ -18,12 +19,16 @@ import { pngxPopperOptions } from 'src/app/utils/popper-options'
 })
 export class SuggestionsDropdownComponent {
   public popperOptions = pngxPopperOptions
+  public readonly SuggestionSource = SuggestionSource
 
   @ViewChild('dropdown') dropdown: NgbDropdown
   readonly suggestions = input<DocumentSuggestions>(null)
   readonly aiEnabled = input(false)
   readonly loading = input(false)
   readonly disabled = input(false)
+  readonly source = input<SuggestionSource>(SuggestionSource.ML)
+  readonly defaultSource = input<SuggestionSource>(SuggestionSource.ML)
+  readonly fetchedSources = input<SuggestionSource[]>([])
 
   readonly appliedTags = input<number[]>([])
   readonly appliedCorrespondent = input<number>(null)
@@ -31,8 +36,10 @@ export class SuggestionsDropdownComponent {
   readonly appliedStoragePath = input<number>(null)
 
   @Output()
-  getSuggestions: EventEmitter<SuggestionsDropdownComponent> =
-    new EventEmitter()
+  getSuggestions: EventEmitter<SuggestionSource> = new EventEmitter()
+
+  @Output()
+  sourceChange: EventEmitter<SuggestionSource> = new EventEmitter()
 
   @Output()
   addTag: EventEmitter<string> = new EventEmitter()
@@ -53,12 +60,42 @@ export class SuggestionsDropdownComponent {
     }
 
     if (!this.suggestions()) {
-      this.getSuggestions.emit(this)
+      this.getSuggestions.emit(this.source())
+    } else if (this.hasUnfetchedSources) {
+      // sources changed, fetch the rest and show what we have meanwhile
+      this.getSuggestions.emit(this.source())
+      this.dropdown?.open()
     } else {
       this.dropdown?.toggle()
     }
   }
 
+  get useML(): boolean {
+    return this.source() !== SuggestionSource.AI
+  }
+
+  get useAI(): boolean {
+    return this.source() !== SuggestionSource.ML
+  }
+
+  get hasUnfetchedSources(): boolean {
+    const fetched = this.fetchedSources()
+    return (
+      (this.useML && !fetched.includes(SuggestionSource.ML)) ||
+      (this.useAI && !fetched.includes(SuggestionSource.AI))
+    )
+  }
+
+  public setSources(ml: boolean, ai: boolean) {
+    if (ml && ai) {
+      this.sourceChange.emit(SuggestionSource.Both)
+    } else if (ml) {
+      this.sourceChange.emit(SuggestionSource.ML)
+    } else if (ai) {
+      this.sourceChange.emit(SuggestionSource.AI)
+    }
+  }
+
   get novelSuggestions(): number {
     return (
       (this.suggestions()?.suggested_correspondents?.length ?? 0) +

src-ui/src/app/components/document-detail/document-detail.component.html

@@ -134,11 +134,15 @@
                 [loading]="suggestionsLoading()"
                 [suggestions]="suggestions()"
                 [aiEnabled]="aiEnabled"
+                [source]="suggestionSource"
+                [defaultSource]="defaultSuggestionSource"
+                [fetchedSources]="fetchedSuggestionSources()"
                 [appliedTags]="documentForm.value.tags"
                 [appliedCorrespondent]="documentForm.value.correspondent"
                 [appliedDocumentType]="documentForm.value.document_type"
                 [appliedStoragePath]="documentForm.value.storage_path"
-                (getSuggestions)="getSuggestions()"
+                (getSuggestions)="getSuggestions($event)"
+                (sourceChange)="suggestionSourceOverride.set($event)"
                 (addTag)="createTag($event)"
                 (addDocumentType)="createDocumentType($event)"
                 (addCorrespondent)="createCorrespondent($event)">

src-ui/src/app/components/document-detail/document-detail.component.spec.ts

@@ -43,7 +43,7 @@ import {
 } from 'src/app/data/filter-rule-type'
 import { StoragePath } from 'src/app/data/storage-path'
 import { Tag } from 'src/app/data/tag'
-import { SETTINGS_KEYS } from 'src/app/data/ui-settings'
+import { SETTINGS_KEYS, SuggestionSource } from 'src/app/data/ui-settings'
 import { PermissionsGuard } from 'src/app/guards/permissions.guard'
 import { CustomDatePipe } from 'src/app/pipes/custom-date.pipe'
 import { DocumentTitlePipe } from 'src/app/pipes/document-title.pipe'
@@ -1528,6 +1528,113 @@ describe('DocumentDetailComponent', () => {
     expect(component.suggestionsLoading()).toBeFalsy()
   })
 
+  it('should get and merge ML and AI suggestions when source is both', () => {
+    settingsService.set(
+      SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE,
+      SuggestionSource.Both
+    )
+    const getSetting = settingsService.get.bind(settingsService)
+    jest
+      .spyOn(settingsService, 'get')
+      .mockImplementation((key) =>
+        key === SETTINGS_KEYS.AI_ENABLED ? true : getSetting(key)
+      )
+    const suggestionsSpy = jest
+      .spyOn(documentService, 'getSuggestions')
+      .mockReturnValue(of({ tags: [42], dates: ['2024-01-01'] }))
+    const aiSuggestionsSpy = jest
+      .spyOn(documentService, 'getAiSuggestions')
+      .mockReturnValue(
+        of({ title: 'AI title', tags: [42, 43], suggested_tags: ['New'] })
+      )
+    initNormally()
+    expect(suggestionsSpy).toHaveBeenCalled()
+    expect(aiSuggestionsSpy).toHaveBeenCalled()
+    expect(component.suggestions().title).toEqual('AI title')
+    expect(component.suggestions().tags).toEqual([42, 43])
+    expect(component.suggestions().suggested_tags).toEqual(['New'])
+    expect(component.suggestions().dates).toEqual(['2024-01-01'])
+  })
+
+  it('should only fetch sources not yet fetched for the document', () => {
+    settingsService.set(SETTINGS_KEYS.DOCUMENT_EDITING_AUTO_SUGGEST, false)
+    settingsService.set(
+      SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE,
+      SuggestionSource.ML
+    )
+    const getSetting = settingsService.get.bind(settingsService)
+    jest
+      .spyOn(settingsService, 'get')
+      .mockImplementation((key) =>
+        key === SETTINGS_KEYS.AI_ENABLED ? true : getSetting(key)
+      )
+    const suggestionsSpy = jest
+      .spyOn(documentService, 'getSuggestions')
+      .mockReturnValue(of({ tags: [42] }))
+    const aiSuggestionsSpy = jest
+      .spyOn(documentService, 'getAiSuggestions')
+      .mockReturnValue(of({ tags: [43] }))
+    initNormally()
+
+    component.getSuggestions()
+    expect(suggestionsSpy).toHaveBeenCalledTimes(1)
+    expect(aiSuggestionsSpy).not.toHaveBeenCalled()
+
+    component.getSuggestions(SuggestionSource.Both)
+    expect(suggestionsSpy).toHaveBeenCalledTimes(1)
+    expect(aiSuggestionsSpy).toHaveBeenCalledTimes(1)
+    expect(component.suggestions().tags).toEqual([42, 43])
+
+    component.getSuggestions(SuggestionSource.Both)
+    expect(suggestionsSpy).toHaveBeenCalledTimes(1)
+    expect(aiSuggestionsSpy).toHaveBeenCalledTimes(1)
+  })
+
+  it('should use the per-document source override and reset it on document change', () => {
+    settingsService.set(SETTINGS_KEYS.DOCUMENT_EDITING_AUTO_SUGGEST, false)
+    const getSetting = settingsService.get.bind(settingsService)
+    jest
+      .spyOn(settingsService, 'get')
+      .mockImplementation((key) =>
+        key === SETTINGS_KEYS.AI_ENABLED ? true : getSetting(key)
+      )
+    initNormally()
+    expect(component.suggestionSource).toEqual(SuggestionSource.AI)
+    component.suggestionSourceOverride.set(SuggestionSource.ML)
+    expect(component.suggestionSource).toEqual(SuggestionSource.ML)
+
+    jest
+      .spyOn(documentService, 'get')
+      .mockReturnValueOnce(of(Object.assign({}, doc)))
+    ;(component as any).loadDocument(doc.id, true)
+    expect(component.suggestionSourceOverride()).toBeNull()
+    expect(component.fetchedSuggestionSources()).toEqual([])
+  })
+
+  it('should keep suggestions from one source if the other fails', () => {
+    settingsService.set(
+      SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE,
+      SuggestionSource.Both
+    )
+    const getSetting = settingsService.get.bind(settingsService)
+    jest
+      .spyOn(settingsService, 'get')
+      .mockImplementation((key) =>
+        key === SETTINGS_KEYS.AI_ENABLED ? true : getSetting(key)
+      )
+    const errorSpy = jest.spyOn(toastService, 'showError')
+    jest
+      .spyOn(documentService, 'getSuggestions')
+      .mockReturnValue(of({ tags: [42] }))
+    jest
+      .spyOn(documentService, 'getAiSuggestions')
+      .mockReturnValue(throwError(() => new Error('failed')))
+    initNormally()
+    expect(errorSpy).toHaveBeenCalled()
+    expect(component.suggestions().tags).toEqual([42])
+    expect(component.fetchedSuggestionSources()).toEqual([SuggestionSource.ML])
+  })
+
   it('should show error if needed for get suggestions', () => {
     const suggestionsSpy = jest.spyOn(documentService, 'getSuggestions')
     const errorSpy = jest.spyOn(toastService, 'showError')

src-ui/src/app/components/document-detail/document-detail.component.ts

@@ -28,7 +28,7 @@ import {
 import { dirtyCheck, DirtyComponent } from '@ngneat/dirty-check-forms'
 import { NgxBootstrapIconsModule } from 'ngx-bootstrap-icons'
 import { DeviceDetectorService } from 'ngx-device-detector'
-import { BehaviorSubject, Observable, of, Subject, timer } from 'rxjs'
+import { BehaviorSubject, merge, Observable, of, Subject, timer } from 'rxjs'
 import {
   catchError,
   debounceTime,
@@ -48,7 +48,10 @@ import { DataType } from 'src/app/data/datatype'
 import { Document, DocumentVersionInfo } from 'src/app/data/document'
 import { DocumentMetadata } from 'src/app/data/document-metadata'
 import { DocumentNote } from 'src/app/data/document-note'
-import { DocumentSuggestions } from 'src/app/data/document-suggestions'
+import {
+  DocumentSuggestions,
+  mergeSuggestions,
+} from 'src/app/data/document-suggestions'
 import { DocumentType } from 'src/app/data/document-type'
 import { FilterRule } from 'src/app/data/filter-rule'
 import {
@@ -63,7 +66,7 @@ import {
 import { ObjectWithId } from 'src/app/data/object-with-id'
 import { StoragePath } from 'src/app/data/storage-path'
 import { Tag } from 'src/app/data/tag'
-import { SETTINGS_KEYS } from 'src/app/data/ui-settings'
+import { SETTINGS_KEYS, SuggestionSource } from 'src/app/data/ui-settings'
 import { User } from 'src/app/data/user'
 import { IfPermissionsDirective } from 'src/app/directives/if-permissions.directive'
 import { CustomDatePipe } from 'src/app/pipes/custom-date.pipe'
@@ -240,6 +243,10 @@ export class DocumentDetailComponent
   private readonly autoSuggestSetting = this.settings.getSignal<boolean>(
     SETTINGS_KEYS.DOCUMENT_EDITING_AUTO_SUGGEST
   )
+  private readonly suggestionSourceSetting =
+    this.settings.getSignal<SuggestionSource>(
+      SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE
+    )
   private readonly hiddenFieldsSetting = this.settings.getSignal<
     DocumentDetailFieldID[]
   >(SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS)
@@ -261,6 +268,9 @@ export class DocumentDetailComponent
   readonly metadata = signal<DocumentMetadata>(undefined)
   readonly suggestions = signal<DocumentSuggestions>(undefined)
   readonly suggestionsLoading = signal(false)
+  // per-document, resets on navigation
+  readonly suggestionSourceOverride = signal<SuggestionSource>(null)
+  readonly fetchedSuggestionSources = signal<SuggestionSource[]>([])
   readonly users = signal<User[]>(undefined)
 
   readonly title = signal<string>(undefined)
@@ -365,6 +375,15 @@ export class DocumentDetailComponent
     return this.autoSuggestSetting()
   }
 
+  get defaultSuggestionSource(): SuggestionSource {
+    return this.aiEnabled ? this.suggestionSourceSetting() : SuggestionSource.ML
+  }
+
+  get suggestionSource(): SuggestionSource {
+    if (!this.aiEnabled) return SuggestionSource.ML
+    return this.suggestionSourceOverride() ?? this.defaultSuggestionSource
+  }
+
   get archiveContentRenderType(): ContentRenderType {
     const hasArchiveVersion =
       this.metadata()?.has_archive_version ??
@@ -590,6 +609,8 @@ export class DocumentDetailComponent
           }
           this.documentId.set(doc.id)
           this.suggestions.set(null)
+          this.suggestionSourceOverride.set(null)
+          this.fetchedSuggestionSources.set([])
           const openDocument = this.openDocumentService.getOpenDocument(
             this.documentId()
           )
@@ -1077,29 +1098,44 @@ export class DocumentDetailComponent
     return this.documentForm.get('custom_fields') as FormArray
   }
 
-  getSuggestions() {
+  getSuggestions(source: SuggestionSource = this.suggestionSource) {
+    const sources = (
+      source === SuggestionSource.Both
+        ? [SuggestionSource.ML, SuggestionSource.AI]
+        : [source]
+    ).filter((s) => !this.fetchedSuggestionSources().includes(s))
+    if (!sources.length) return
+
     this.suggestionsLoading.set(true)
-    const suggestionsObservable = this.aiEnabled
-      ? this.documentsService.getAiSuggestions(this.documentId())
-      : this.documentsService.getSuggestions(this.documentId())
-    suggestionsObservable
+    merge(
+      ...sources.map((s) =>
+        (s === SuggestionSource.AI
+          ? this.documentsService.getAiSuggestions(this.documentId())
+          : this.documentsService.getSuggestions(this.documentId())
+        ).pipe(
+          first(),
+          map((result) => ({ source: s, result })),
+          catchError((error) => {
+            this.toastService.showError(
+              $localize`Error retrieving suggestions.`,
+              error
+            )
+            return of(null)
+          })
+        )
+      )
+    )
       .pipe(
-        first(),
         takeUntil(this.unsubscribeNotifier),
         takeUntil(this.docChangeNotifier),
         finalize(() => this.suggestionsLoading.set(false))
       )
-      .subscribe({
-        next: (result) => {
-          this.suggestions.set(result)
-        },
-        error: (error) => {
-          this.suggestions.set(null)
-          this.toastService.showError(
-            $localize`Error retrieving suggestions.`,
-            error
-          )
-        },
+      .subscribe((response) => {
+        if (!response) return
+        this.fetchedSuggestionSources.update((f) => [...f, response.source])
+        this.suggestions.set(
+          mergeSuggestions(this.suggestions(), response.result)
+        )
       })
   }
 

src-ui/src/app/data/document-suggestions.ts

@@ -15,3 +15,33 @@ export interface DocumentSuggestions {
 
   dates?: string[] // ISO-formatted date string e.g. 2022-11-03
 }
+
+const union = <T>(a: T[] = [], b: T[] = []): T[] => [...new Set([...a, ...b])]
+
+export function mergeSuggestions(
+  a: DocumentSuggestions,
+  b: DocumentSuggestions
+): DocumentSuggestions {
+  if (!a) return b
+  return {
+    title: a.title || b.title,
+    tags: union(a.tags, b.tags),
+    suggested_tags: union(a.suggested_tags, b.suggested_tags),
+    correspondents: union(a.correspondents, b.correspondents),
+    suggested_correspondents: union(
+      a.suggested_correspondents,
+      b.suggested_correspondents
+    ),
+    document_types: union(a.document_types, b.document_types),
+    suggested_document_types: union(
+      a.suggested_document_types,
+      b.suggested_document_types
+    ),
+    storage_paths: union(a.storage_paths, b.storage_paths),
+    suggested_storage_paths: union(
+      a.suggested_storage_paths,
+      b.suggested_storage_paths
+    ),
+    dates: union(a.dates, b.dates),
+  }
+}

src-ui/src/app/data/ui-settings.ts

@@ -20,6 +20,12 @@ export enum GlobalSearchType {
   TITLE_CONTENT = 'title-content',
 }
 
+export enum SuggestionSource {
+  ML = 'ml',
+  AI = 'ai',
+  Both = 'both',
+}
+
 export enum CollapsibleSection {
   ATTRIBUTES = 'attributes',
 }
@@ -98,6 +104,8 @@ export const SETTINGS_KEYS = {
     'general-settings:document-editing:overlay-thumbnail',
   DOCUMENT_EDITING_AUTO_SUGGEST:
     'general-settings:document-editing:auto-suggest',
+  DOCUMENT_EDITING_SUGGESTION_SOURCE:
+    'general-settings:document-editing:suggestion-source',
   DOCUMENT_DETAILS_HIDDEN_FIELDS:
     'general-settings:document-details:hidden-fields',
   SEARCH_DB_ONLY: 'general-settings:search:db-only',
@@ -326,6 +334,11 @@ export const SETTINGS: UiSetting[] = [
     type: 'boolean',
     default: true,
   },
+  {
+    key: SETTINGS_KEYS.DOCUMENT_EDITING_SUGGESTION_SOURCE,
+    type: 'string',
+    default: SuggestionSource.AI,
+  },
   {
     key: SETTINGS_KEYS.DOCUMENT_DETAILS_HIDDEN_FIELDS,
     type: 'array',

src-ui/src/main.ts

@@ -74,6 +74,7 @@ import {
   clipboardCheckFill,
   clipboardFill,
   clockHistory,
+  cpu,
   creditCard,
   dash,
   dashCircle,
@@ -322,6 +323,7 @@ const icons = {
   clipboardCheckFill,
   clipboardFill,
   clockHistory,
+  cpu,
   cash,
   creditCard,
   dash,

src-ui/src/styles.scss

@@ -292,6 +292,7 @@ a.btn-link:active,
 a.btn-link:focus-visible,
 .btn-link:hover,
 .btn-link:active,
+.btn-link.show,
 .btn-link:focus-visible {
   color: var(--pngx-primary-lighten-10) !important;
   .primary-light & {