Maker: duplica ricetta e durata loop predefinita (#52, #49)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/backend/api/routers/recipes.py

@@ -9,6 +9,7 @@ from src.backend.api.middleware.api_key import get_current_user, require_maker,
 from src.backend.models.orm.user import User
 from src.backend.models.api.recipe import (
     RecipeCreate,
+    RecipeDuplicate,
     RecipeListResponse,
     RecipeResponse,
     RecipeUpdate,
@@ -52,6 +53,18 @@ async def create_recipe(
     return _recipe_to_response(recipe)
 
 
+@router.post("/{recipe_id}/duplicate", response_model=RecipeResponse, status_code=201)
+async def duplicate_recipe(
+    recipe_id: int,
+    data: RecipeDuplicate,
+    user: User = Depends(require_maker),
+    db: AsyncSession = Depends(get_db),
+):
+    """Duplicate a recipe with its current tasks under a new code (#52). Requires Maker role."""
+    recipe = await recipe_service.duplicate_recipe(db, recipe_id, data.code, data.name, user)
+    return _recipe_to_response(recipe)
+
+
 @router.get("", response_model=RecipeListResponse)
 async def list_recipes(
     page: int = Query(1, ge=1),

src/backend/models/api/recipe.py

@@ -26,6 +26,12 @@ class RecipeCreate(BaseModel):
     annotations_json: Optional[dict] = None
 
 
+class RecipeDuplicate(BaseModel):
+    """Schema for duplicating a recipe (#52): only the new code and name."""
+    code: str = Field(..., min_length=1, max_length=100)
+    name: str = Field(..., min_length=1, max_length=255)
+
+
 class RecipeUpdate(BaseModel):
     """Schema for updating a recipe (creates new version)."""
     name: Optional[str] = Field(None, min_length=1, max_length=255)

src/backend/services/recipe_service.py

@@ -253,6 +253,78 @@ async def create_recipe(
     return result.scalar_one()
 
 
+async def duplicate_recipe(
+    db: AsyncSession,
+    recipe_id: int,
+    new_code: str,
+    new_name: str,
+    user: User,
+) -> Recipe:
+    """Duplicate a recipe (#52): new code/name, v1 with the current version's tasks.
+
+    The source recipe is left untouched.
+    """
+    source = await _get_recipe_or_404(db, recipe_id)
+
+    existing = await db.execute(select(Recipe).where(Recipe.code == new_code))
+    if existing.scalar_one_or_none() is not None:
+        raise HTTPException(
+            status_code=status.HTTP_409_CONFLICT,
+            detail=f"Recipe code '{new_code}' already exists",
+        )
+
+    # Same header fields create_recipe persists, taken from the source recipe
+    recipe = Recipe(
+        code=new_code,
+        name=new_name,
+        description=source.description,
+        image_path=source.image_path,
+        measurement_interval_minutes=source.measurement_interval_minutes,
+        requires_lot=source.requires_lot,
+        requires_serial=source.requires_serial,
+        allow_manual_input=source.allow_manual_input,
+        created_by=user.id,
+    )
+    db.add(recipe)
+    await db.flush()
+
+    version = RecipeVersion(
+        recipe_id=recipe.id,
+        version_number=1,
+        is_current=True,
+        created_by=user.id,
+        change_notes=f"Duplicated from {source.code}",
+    )
+    db.add(version)
+    await db.flush()
+
+    # Reuse the existing deep copy of tasks/subtasks from the current version
+    source_version = await _get_current_version(db, source.id)
+    if source_version is not None:
+        await _copy_tasks_to_version(db, source_version, version)
+
+    await _write_audit(
+        db,
+        recipe_id=recipe.id,
+        old_version_id=None,
+        new_version_id=version.id,
+        changed_by=user.id,
+        change_type="CREATE",
+        change_reason=f"Duplicated from recipe {source.code}",
+    )
+
+    result = await db.execute(
+        select(Recipe)
+        .where(Recipe.id == recipe.id)
+        .options(
+            selectinload(Recipe.versions)
+            .selectinload(RecipeVersion.tasks)
+            .selectinload(RecipeTask.subtasks)
+        )
+    )
+    return result.scalar_one()
+
+
 async def create_new_version(
     db: AsyncSession,
     recipe_id: int,

src/backend/tests/test_recipe_duplicate.py

@@ -0,0 +1,74 @@
+"""Tests for POST /api/recipes/{id}/duplicate (#52)."""
+from httpx import AsyncClient
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from src.backend.models.orm.recipe import Recipe, RecipeVersion
+from src.backend.models.orm.task import RecipeSubtask, RecipeTask
+from src.backend.models.orm.user import User
+from src.backend.tests.conftest import auth_headers, create_test_recipe
+
+
+class TestDuplicateRecipe:
+    async def test_duplicate_copies_tasks_and_keeps_original(
+        self, client: AsyncClient, maker_user: User, db_session: AsyncSession
+    ):
+        src = await create_test_recipe(db_session, maker_user.id)
+        src_id = src.id
+        before_tasks = (await db_session.execute(select(func.count(RecipeTask.id)))).scalar_one()
+        before_subs = (await db_session.execute(select(func.count(RecipeSubtask.id)))).scalar_one()
+
+        resp = await client.post(
+            f"/api/recipes/{src_id}/duplicate",
+            json={"code": "REC-COPIA", "name": "Copia"},
+            headers=auth_headers(maker_user),
+        )
+        assert resp.status_code == 201
+        data = resp.json()
+        assert data["code"] == "REC-COPIA" and data["name"] == "Copia"
+        assert data["id"] != src_id
+        assert data["description"] == "A recipe for testing"
+        assert data["current_version"]["version_number"] == 1
+
+        # Tasks and subtasks doubled: copied, not moved
+        after_tasks = (await db_session.execute(select(func.count(RecipeTask.id)))).scalar_one()
+        after_subs = (await db_session.execute(select(func.count(RecipeSubtask.id)))).scalar_one()
+        assert after_tasks == before_tasks * 2
+        assert after_subs == before_subs * 2
+
+        new_version = (await db_session.execute(
+            select(RecipeVersion).where(RecipeVersion.recipe_id == data["id"])
+        )).scalar_one()
+        new_tasks = (await db_session.execute(
+            select(RecipeTask).where(RecipeTask.version_id == new_version.id)
+        )).scalars().all()
+        assert len(new_tasks) == before_tasks
+
+        # Original unchanged
+        orig = (await db_session.execute(select(Recipe).where(Recipe.id == src_id))).scalar_one()
+        assert orig.code == "REC-001" and orig.name == "Test Recipe"
+        orig_versions = (await db_session.execute(
+            select(func.count(RecipeVersion.id)).where(RecipeVersion.recipe_id == src_id)
+        )).scalar_one()
+        assert orig_versions == 1
+
+    async def test_duplicate_code_conflict(
+        self, client: AsyncClient, maker_user: User, db_session: AsyncSession
+    ):
+        src = await create_test_recipe(db_session, maker_user.id)
+        resp = await client.post(
+            f"/api/recipes/{src.id}/duplicate",
+            json={"code": "REC-001", "name": "X"},
+            headers=auth_headers(maker_user),
+        )
+        assert resp.status_code == 409
+
+    async def test_duplicate_missing_recipe(
+        self, client: AsyncClient, maker_user: User
+    ):
+        resp = await client.post(
+            "/api/recipes/99999/duplicate",
+            json={"code": "NEW", "name": "X"},
+            headers=auth_headers(maker_user),
+        )
+        assert resp.status_code == 404

src/frontend/flask_app/blueprints/maker.py

@@ -57,7 +57,20 @@ def recipe_list():
 @role_required("Maker")
 def recipe_new():
     """Create new recipe."""
-    return render_template("maker/recipe_editor.html", recipe=None)
+    # #49: loop duration pre-filled from the system default (new recipes only);
+    # missing/empty/invalid key -> None -> behaviour unchanged
+    default_interval = None
+    settings = api_client.get("/api/settings")
+    if isinstance(settings, dict) and not settings.get("error"):
+        try:
+            value = int(str(settings.get("default_measurement_interval_minutes", "")).strip())
+            if 1 <= value <= 1440:
+                default_interval = value
+        except ValueError:
+            pass
+    return render_template(
+        "maker/recipe_editor.html", recipe=None, default_interval=default_interval
+    )
 
 
 @maker_bp.route("/recipes/<int:recipe_id>/edit")
@@ -201,6 +214,21 @@ def api_create_recipe():
     return jsonify(resp), 201
 
 
+@maker_bp.route("/api/recipes/<int:recipe_id>/duplicate", methods=["POST"])
+@login_required
+@role_required("Maker")
+def api_duplicate_recipe(recipe_id: int):
+    """Proxy: Duplicate a recipe under a new code/name (#52)."""
+    data = request.get_json(silent=True) or {}
+
+    resp = api_client.post(f"/api/recipes/{recipe_id}/duplicate", data=data)
+
+    if resp.get("error"):
+        return jsonify(resp), resp.get("status_code", 500)
+
+    return jsonify(resp), 201
+
+
 @maker_bp.route("/api/recipes/<int:recipe_id>", methods=["PUT"])
 @login_required
 @role_required("Maker")
@@ -377,6 +405,47 @@ def api_upload_file():
     return jsonify(resp), 201
 
 
+# ============================================================================
+# VISION RECIPE PROXY (#46)
+# ============================================================================
+
+@maker_bp.route("/api/vision/tasks/<int:task_id>/recipe", methods=["GET"])
+@login_required
+@role_required("Maker")
+def api_get_vision_recipe(task_id: int):
+    """Proxy: ricetta visione corrente del task (cartella, file, uscite)."""
+    resp = api_client.get(f"/api/vision/tasks/{task_id}/recipe")
+
+    if resp.get("error"):
+        return jsonify(resp), resp.get("status_code", 500)
+
+    return jsonify(resp), 200
+
+
+@maker_bp.route("/api/vision/tasks/<int:task_id>/recipe", methods=["POST"])
+@login_required
+@role_required("Maker")
+def api_upload_vision_recipe(task_id: int):
+    """Proxy: carica ricetta .json + file allegati (multipart forward)."""
+    recipe = request.files.get("recipe")
+    if recipe is None or recipe.filename == "":
+        return jsonify({"error": True, "detail": _("Nessun file ricetta caricato")}), 400
+
+    # Ricetta + 0..n allegati (DXF, modelli .npz, calibrazione), stesso nome campo `files`
+    files = [("recipe", (recipe.filename, recipe.stream, recipe.content_type))]
+    for f in request.files.getlist("files"):
+        if f.filename:
+            files.append(("files", (f.filename, f.stream, f.content_type)))
+
+    resp = api_client.post(f"/api/vision/tasks/{task_id}/recipe", data={}, files=files)
+
+    # Il 422 (errori di validazione) arriva al browser com'è, con `errors`
+    if resp.get("error"):
+        return jsonify(resp), resp.get("status_code", 500)
+
+    return jsonify(resp), 200
+
+
 @maker_bp.route("/api/files/<path:file_path>", methods=["GET"])
 @login_required
 def api_get_file(file_path: str):

src/frontend/flask_app/static/js/vision_recipe.js

@@ -0,0 +1,80 @@
+// Ricetta visione del Maker (#46): componente Alpine per i task camera_measure / dxf_compare.
+// Carica la ricetta VisionSuite v2 + i file allegati verso /maker/api/vision/tasks/<id>/recipe,
+// mostra cartella, file e uscite numeriche; notifica le uscite al task editor con un evento.
+// Uso: x-data="visionRecipe(task.id, csrfToken, msgs)". Dipende da Alpine.js.
+function visionRecipe(taskId, csrf, msgs) {
+  return {
+    taskId: taskId,
+    recipeDir: null,
+    files: [],
+    outputs: [],
+    errors: [],       // errori 422 elencati in chiaro
+    loading: false,
+    busy: false,
+    recipeFile: null,
+    attachments: [],
+    msgs: msgs || {},
+
+    async init() {
+      // All'apertura: ricetta corrente (GET); il 404/errore non blocca l'editor
+      this.loading = true;
+      try {
+        const resp = await fetch(`/maker/api/vision/tasks/${this.taskId}/recipe`);
+        if (resp.ok) this._apply(await resp.json());
+      } catch (e) { console.error('visionRecipe init', e); }
+      this.loading = false;
+    },
+
+    // Aggiorna lo stato e avvisa il task editor (select vision_output delle quote)
+    _apply(data) {
+      this.recipeDir = data.recipe_dir || null;
+      this.files = data.files || [];
+      this.outputs = data.outputs || [];
+      window.dispatchEvent(new CustomEvent('vision-outputs', {
+        detail: { taskId: this.taskId, outputs: this.outputs }
+      }));
+    },
+
+    // Il 422 porta `errors` (lista) oppure `detail` (stringa o lista di voci)
+    _errorsFrom(data) {
+      if (Array.isArray(data.errors) && data.errors.length) return data.errors.map(String);
+      const d = data.detail;
+      if (Array.isArray(d)) return d.map(x => (typeof x === 'string' ? x : (x.msg || JSON.stringify(x))));
+      if (d && typeof d === 'object') {
+        if (Array.isArray(d.errors)) return d.errors.map(String);
+        return [JSON.stringify(d)];
+      }
+      return [d || this.msgs.genericError || 'Error'];
+    },
+
+    async upload() {
+      if (!this.recipeFile) return;
+      this.busy = true;
+      this.errors = [];
+      try {
+        const fd = new FormData();
+        fd.append('recipe', this.recipeFile);
+        for (const f of this.attachments) fd.append('files', f);
+        const resp = await fetch(`/maker/api/vision/tasks/${this.taskId}/recipe`, {
+          method: 'POST',
+          headers: { 'X-CSRFToken': typeof csrf === 'function' ? csrf() : csrf },
+          body: fd
+        });
+        const data = await resp.json();
+        if (!resp.ok || data.error) {
+          this.errors = this._errorsFrom(data);
+        } else {
+          this._apply(data);
+          this.recipeFile = null;
+          this.attachments = [];
+        }
+      } catch (e) {
+        this.errors = [this.msgs.genericError || String(e)];
+      }
+      this.busy = false;
+    },
+
+    onRecipe(ev) { this.recipeFile = ev.target.files[0] || null; },
+    onAttachments(ev) { this.attachments = Array.from(ev.target.files || []); }
+  };
+}

src/frontend/flask_app/templates/maker/recipe_editor.html

@@ -526,7 +526,8 @@ function recipeEditor() {
     currentVersion: {{ (recipe.current_version.version_number if recipe and recipe.current_version else 0)|tojson }},
 
     // ---- Measurement interval ----
-    measurementIntervalMinutes: {{ (recipe.measurement_interval_minutes if recipe and recipe.measurement_interval_minutes else 'null')|tojson }},
+    // #49: a new recipe starts from the system default duration (default_interval), an existing one never does
+    measurementIntervalMinutes: {{ (recipe.measurement_interval_minutes if recipe and recipe.measurement_interval_minutes else (default_interval if not recipe and default_interval else 'null'))|tojson }},
 
     // ---- Rules of measurement (points 8 and 9) ----
     // A new recipe forbids typing: the caliper is the instrument, and permission

src/frontend/flask_app/templates/maker/recipe_list.html

@@ -10,6 +10,51 @@
        filter: 'all',
        deleteModal: false,
        deleteTarget: null,
+       // #52: duplicate modal state
+       dupModal: false,
+       dupSource: null,
+       dupCode: '',
+       dupName: '',
+       dupError: '',
+       dupBusy: false,
+
+       openDupModal(recipe) {
+         this.dupSource = recipe;
+         this.dupCode = recipe.code + '-COPIA';
+         this.dupName = recipe.name + ' ' + {{ _('(copia)')|tojson_attr }};
+         this.dupError = '';
+         this.dupModal = true;
+       },
+
+       async duplicateRecipe() {
+         const csrfToken = document.querySelector('meta[name=csrf-token]')?.content;
+         this.dupBusy = true;
+         this.dupError = '';
+         try {
+           const resp = await fetch(`/maker/api/recipes/${this.dupSource.id}/duplicate`, {
+             method: 'POST',
+             headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken || '' },
+             body: JSON.stringify({ code: this.dupCode.trim(), name: this.dupName.trim() })
+           });
+           const data = await resp.json().catch(() => ({}));
+           if (resp.ok) {
+             // open the new recipe in the editor
+             window.location.href = '/maker/recipes/' + data.id + '/edit';
+             return;
+           }
+           if (resp.status === 409) {
+             this.dupError = {{ _('Esiste già una ricetta con questo codice')|tojson_attr }};
+           } else if (resp.status === 422) {
+             this.dupError = {{ _('Codice o nome non validi')|tojson_attr }};
+           } else {
+             this.dupError = data.detail || data.error || {{ _('Errore durante la duplicazione')|tojson_attr }};
+           }
+         } catch (err) {
+           this.dupError = {{ _('Errore di connessione')|tojson_attr }};
+         } finally {
+           this.dupBusy = false;
+         }
+       },
 
        get filteredRecipes() {
          let filtered = this.recipes;
@@ -265,6 +310,15 @@
               {{ _('Versioni') }}
             </a>
 
+            <!-- Duplica (#52) -->
+            <button @click="openDupModal(recipe)"
+                    class="btn btn-secondary gap-1.5 text-xs">
+              <svg class="w-4 h-4" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/>
+              </svg>
+              {{ _('Duplica') }}
+            </button>
+
             <!-- Spacer -->
             <div class="flex-1"></div>
 
@@ -318,6 +372,42 @@
     </a>
   </div>
 
+  <!-- Duplicate Modal (#52) -->
+  <div x-show="dupModal"
+       x-cloak
+       @keydown.escape.window="dupModal = false"
+       class="fixed inset-0 z-50 overflow-y-auto"
+       role="dialog"
+       aria-modal="true">
+    <div @click="dupModal = false" class="fixed inset-0 bg-black/50 backdrop-blur-sm"></div>
+    <div class="flex min-h-full items-center justify-center p-4">
+      <div class="tmf-card max-w-lg w-full relative p-6">
+        <h3 class="text-lg font-semibold text-[var(--text-primary)] mb-4">
+          {{ _('Duplica ricetta') }}
+        </h3>
+        <div class="mb-3">
+          <label class="tmf-label" for="dup-code">{{ _('Codice') }}</label>
+          <input id="dup-code" type="text" x-model="dupCode" maxlength="100" class="tmf-input">
+        </div>
+        <div class="mb-3">
+          <label class="tmf-label" for="dup-name">{{ _('Nome') }}</label>
+          <input id="dup-name" type="text" x-model="dupName" maxlength="255" class="tmf-input">
+        </div>
+        <p x-show="dupError" x-text="dupError" class="text-sm text-red-600 mb-3"></p>
+        <div class="flex flex-col sm:flex-row gap-3">
+          <button @click="dupModal = false" class="btn btn-secondary flex-1 justify-center">
+            {{ _('Annulla') }}
+          </button>
+          <button @click="duplicateRecipe()"
+                  :disabled="dupBusy || !dupCode.trim() || !dupName.trim()"
+                  class="btn btn-primary flex-1 justify-center">
+            {{ _('Duplica') }}
+          </button>
+        </div>
+      </div>
+    </div>
+  </div>
+
   <!-- Delete Confirmation Modal -->
   <div x-show="deleteModal"
        x-cloak

src/frontend/flask_app/templates/maker/task_editor.html

@@ -277,6 +277,8 @@
             <option value="note">{{ _('Nota') }}</option>
             <option value="measure">{{ _('Misura') }}</option>
             <option value="drawing">{{ _('Disegno') }}</option>
+            <option value="camera_measure">{{ _('Misura camera') }}</option>
+            <option value="dxf_compare">{{ _('Confronto profilo') }}</option>
           </select>
           <p class="mt-1 text-xs text-[var(--text-secondary)]">
             {{ _('Un task di misura resta tale anche prima di inserire le quote') }}
@@ -460,6 +462,55 @@
 
           <div class="tmf-card-body space-y-4">
 
+            <!-- ========== Ricetta visione (#46): solo camera_measure / dxf_compare ========== -->
+            <template x-if="task.task_type === 'camera_measure' || task.task_type === 'dxf_compare'">
+              <div class="p-3 rounded-lg bg-[var(--bg-secondary)] border border-[var(--border-color)]"
+                   x-data="visionRecipe(task.id, () => csrfToken(), {{ {'genericError': _('Errore durante il caricamento della ricetta')}|tojson_attr }})">
+                <p class="text-xs font-semibold text-[var(--text-secondary)] uppercase tracking-wide mb-2">
+                  {{ _('Ricetta visione') }}
+                </p>
+                <!-- Stato corrente: cartella, file, uscite -->
+                <template x-if="recipeDir">
+                  <div class="text-xs space-y-1 mb-3">
+                    <p><span class="text-[var(--text-secondary)]">{{ _('Cartella') }}:</span>
+                       <span class="font-mono" x-text="recipeDir"></span></p>
+                    <p x-show="files.length"><span class="text-[var(--text-secondary)]">{{ _('File') }}:</span>
+                       <span class="font-mono" x-text="files.join(', ')"></span></p>
+                    <p x-show="outputs.length"><span class="text-[var(--text-secondary)]">{{ _('Uscite numeriche') }}:</span></p>
+                    <ul class="list-disc pl-5" x-show="outputs.length">
+                      <template x-for="o in outputs" :key="o.key">
+                        <li><span class="font-mono" x-text="o.key"></span>
+                            <span class="text-[var(--text-muted)]" x-text="(o.quantity || o.unit) ? '(' + [o.quantity, o.unit].filter(Boolean).join(', ') + ')' : ''"></span></li>
+                      </template>
+                    </ul>
+                  </div>
+                </template>
+                <p x-show="!recipeDir && !loading" class="text-xs text-[var(--text-muted)] mb-3">
+                  {{ _('Nessuna ricetta caricata') }}
+                </p>
+                <!-- Caricamento: ricetta .json + allegati -->
+                <div class="grid grid-cols-1 sm:grid-cols-2 gap-3">
+                  <div>
+                    <label class="tmf-label text-xs">{{ _('Ricetta (.json)') }}</label>
+                    <input type="file" accept=".json,application/json" class="tmf-input text-xs"
+                           @change="onRecipe($event)">
+                  </div>
+                  <div>
+                    <label class="tmf-label text-xs">{{ _('File allegati (DXF, modelli, calibrazione)') }}</label>
+                    <input type="file" multiple class="tmf-input text-xs" @change="onAttachments($event)">
+                  </div>
+                </div>
+                <div class="flex justify-end mt-3">
+                  <button type="button" class="btn btn-primary text-xs" @click="upload()"
+                          :disabled="!recipeFile || busy">{{ _('Carica ricetta') }}</button>
+                </div>
+                <!-- Errori 422 in chiaro -->
+                <ul x-show="errors.length" class="mt-3 text-xs text-red-500 list-disc pl-5">
+                  <template x-for="(e, i) in errors" :key="i"><li x-text="e"></li></template>
+                </ul>
+              </div>
+            </template>
+
             <!-- ========== Task File Upload / Preview ========== -->
             <div class="p-3 rounded-lg bg-[var(--bg-secondary)] border border-[var(--border-color)]">
               <p class="text-xs font-semibold text-[var(--text-secondary)] uppercase tracking-wide mb-2">
@@ -543,6 +594,8 @@
                     <option value="note">{{ _('Nota') }}</option>
                     <option value="measure">{{ _('Misura') }}</option>
                     <option value="drawing">{{ _('Disegno') }}</option>
+                    <option value="camera_measure">{{ _('Misura camera') }}</option>
+                    <option value="dxf_compare">{{ _('Confronto profilo') }}</option>
                   </select>
                 </div>
                 <div>
@@ -699,6 +752,18 @@
                          class="tmf-input"
                          placeholder="{{ _('Es. Diametro foro principale') }}">
                 </div>
+                <!-- Uscita visione (#46): solo task camera_measure / dxf_compare -->
+                <div class="col-span-2 sm:col-span-3 lg:col-span-2"
+                     x-show="task.task_type === 'camera_measure' || task.task_type === 'dxf_compare'">
+                  <label class="tmf-label text-xs">{{ _('Uscita visione') }}</label>
+                  <select x-model="newSubtask.vision_output" class="tmf-input">
+                    <option value="">{{ _('Nessuna') }}</option>
+                    <template x-for="o in (visionOutputs[task.id] || [])" :key="o.key">
+                      <option :value="o.key" :selected="o.key === newSubtask.vision_output"
+                              x-text="o.key + ((o.quantity || o.unit) ? ' (' + [o.quantity, o.unit].filter(Boolean).join(', ') + ')' : '')"></option>
+                    </template>
+                  </select>
+                </div>
                 <!-- Measurement Type -->
                 <div>
                   <label class="tmf-label text-xs">{{ _('Tipo') }}</label>
@@ -1093,6 +1158,7 @@
 {% block extra_js %}
 {# Bold and line breaks in descriptions: the same rules the server renders with. #}
 <script src="{{ url_for('static', filename='js/rich-text.js') }}"></script>
+<script src="{{ url_for('static', filename='js/vision_recipe.js') }}"></script>
 <script src="{{ url_for('static', filename='vendor/pdf-3.11.174.min.js') }}"></script>
 <script>if(typeof pdfjsLib!=='undefined')pdfjsLib.GlobalWorkerOptions.workerSrc='{{ url_for('static', filename='vendor/pdf.worker-3.11.174.min.js') }}';</script>
 <script src="{{ url_for('static', filename='js/annotation-viewer.js') }}?v=6"></script>
@@ -1129,8 +1195,11 @@ function taskEditor() {
     addingSubtaskForTask: null,
     newSubtask: {
       marker_number: 1, description: '', measurement_type: '',
-      nominal: null, utl: null, uwl: null, lwl: null, ltl: null, unit: 'mm'
+      nominal: null, utl: null, uwl: null, lwl: null, ltl: null, unit: 'mm',
+      vision_output: ''
     },
+    // Uscite numeriche della ricetta visione per task (#46), riempite da vision_recipe.js
+    visionOutputs: {},
 
     // ---- Delete modals ----
     deleteTaskModal: false,
@@ -1153,6 +1222,10 @@ function taskEditor() {
     // Init
     // ============================================================
     init() {
+      // Uscite della ricetta visione: evento dal componente visionRecipe (#46)
+      window.addEventListener('vision-outputs', (ev) => {
+        this.visionOutputs = { ...this.visionOutputs, [ev.detail.taskId]: ev.detail.outputs || [] };
+      });
       // Sort tasks by order_index on load
       this.tasks.sort((a, b) => (a.order_index || 0) - (b.order_index || 0));
 
@@ -1610,7 +1683,8 @@ function taskEditor() {
         uwl: null,
         lwl: null,
         ltl: null,
-        unit: 'mm'
+        unit: 'mm',
+        vision_output: ''
       };
     },
 
@@ -1634,7 +1708,8 @@ function taskEditor() {
         uwl: this.newSubtask.uwl,
         lwl: this.newSubtask.lwl,
         ltl: this.newSubtask.ltl,
-        unit: this.newSubtask.unit || 'mm'
+        unit: this.newSubtask.unit || 'mm',
+        vision_output: this.newSubtask.vision_output || null  // chiave uscita ricetta visione (#46)
       };
 
       try {
@@ -1687,7 +1762,8 @@ function taskEditor() {
         uwl: subtask.uwl,
         lwl: subtask.lwl,
         ltl: subtask.ltl,
-        unit: subtask.unit || 'mm'
+        unit: subtask.unit || 'mm',
+        vision_output: subtask.vision_output || ''
       };
     },
 
@@ -1711,7 +1787,8 @@ function taskEditor() {
         uwl: this.newSubtask.uwl,
         lwl: this.newSubtask.lwl,
         ltl: this.newSubtask.ltl,
-        unit: this.newSubtask.unit || 'mm'
+        unit: this.newSubtask.unit || 'mm',
+        vision_output: this.newSubtask.vision_output || null  // chiave uscita ricetta visione (#46)
       };
 
       try {

src/frontend/flask_app/tests/test_maker.py

@@ -71,6 +71,61 @@ class TestRecipeNew:
         assert resp.status_code == 200
 
 
+    def test_recipe_new_default_interval_present(self, logged_in_client, mock_api_client):
+        """#49: default_measurement_interval_minutes pre-fills the loop duration."""
+        mock_api_client.get.return_value = {"default_measurement_interval_minutes": "45"}
+        html = logged_in_client.get("/maker/recipes/new").get_data(as_text=True)
+        assert "measurementIntervalMinutes: 45," in html
+
+    def test_recipe_new_default_interval_absent(self, logged_in_client, mock_api_client):
+        """#49: key missing, empty or invalid -> unchanged behaviour (null)."""
+        for payload in ({}, {"default_measurement_interval_minutes": ""},
+                        {"default_measurement_interval_minutes": "abc"},
+                        {"default_measurement_interval_minutes": "5000"}):
+            mock_api_client.get.return_value = payload
+            html = logged_in_client.get("/maker/recipes/new").get_data(as_text=True)
+            assert 'measurementIntervalMinutes: "null",' in html
+
+    def test_recipe_edit_ignores_default_interval(self, logged_in_client, mock_api_client):
+        """#49: an existing recipe never receives the default."""
+        def fake_get(path, *a, **k):
+            if path == "/api/recipes/7":
+                return {"id": 7, "code": "R", "name": "R"}
+            if path.endswith("/versions"):
+                return []
+            return {"default_measurement_interval_minutes": "45"}
+        mock_api_client.get.side_effect = fake_get
+        html = logged_in_client.get("/maker/recipes/7/edit").get_data(as_text=True)
+        assert 'measurementIntervalMinutes: "null",' in html
+
+
+class TestRecipeDuplicateProxy:
+    """POST /maker/api/recipes/<id>/duplicate (#52)."""
+
+    def test_duplicate_proxy_ok(self, logged_in_client, mock_api_client):
+        mock_api_client.post.return_value = {"id": 9, "code": "A-COPIA"}
+        resp = logged_in_client.post(
+            "/maker/api/recipes/3/duplicate", json={"code": "A-COPIA", "name": "A (copia)"}
+        )
+        assert resp.status_code == 201
+        assert resp.get_json()["id"] == 9
+        mock_api_client.post.assert_called_with(
+            "/api/recipes/3/duplicate", data={"code": "A-COPIA", "name": "A (copia)"}
+        )
+
+    def test_duplicate_proxy_conflict(self, logged_in_client, mock_api_client):
+        mock_api_client.post.return_value = {"error": True, "status_code": 409, "detail": "exists"}
+        resp = logged_in_client.post(
+            "/maker/api/recipes/3/duplicate", json={"code": "A", "name": "A"}
+        )
+        assert resp.status_code == 409
+
+    def test_recipe_list_has_duplicate_button(self, logged_in_client, mock_api_client):
+        mock_api_client.get.return_value = {"items": [], "total": 0, "pages": 1}
+        html = logged_in_client.get("/maker/recipes").get_data(as_text=True)
+        assert "openDupModal" in html
+
+
 class TestRoleRequired:
     """Maker role enforcement tests."""
 
@@ -161,3 +216,82 @@ class TestVersionConflictProxy:
 
         assert resp.status_code == 409
         assert resp.get_json()["detail"] == self._CONFLICT["detail"]
+
+
+class TestVisionRecipeProxy:
+    """Proxy ricetta visione (#46): /maker/api/vision/tasks/<id>/recipe."""
+
+    def test_upload_forwards_recipe_and_files(self, logged_in_client, mock_api_client):
+        import io
+
+        mock_api_client.post.return_value = {
+            "task_id": 7, "recipe_dir": "vision/recipes/7/abc", "files": ["a.dxf"],
+            "outputs": [{"key": "n1.points_in_pct", "quantity": None, "unit": None}],
+        }
+
+        resp = logged_in_client.post(
+            "/maker/api/vision/tasks/7/recipe",
+            data={
+                "recipe": (io.BytesIO(b"{}"), "r.json"),
+                "files": [(io.BytesIO(b"dxf"), "a.dxf"), (io.BytesIO(b"npz"), "m.npz")],
+            },
+            content_type="multipart/form-data",
+        )
+
+        assert resp.status_code == 200
+        assert resp.get_json()["outputs"][0]["key"] == "n1.points_in_pct"
+        endpoint = mock_api_client.post.call_args.args[0]
+        sent = mock_api_client.post.call_args.kwargs["files"]
+        assert endpoint == "/api/vision/tasks/7/recipe"
+        # un campo `recipe` e un campo `files` per ogni allegato
+        assert [name for name, _f in sent] == ["recipe", "files", "files"]
+
+    def test_upload_without_recipe_is_400(self, logged_in_client, mock_api_client):
+        resp = logged_in_client.post(
+            "/maker/api/vision/tasks/7/recipe", data={}, content_type="multipart/form-data"
+        )
+        assert resp.status_code == 400
+        mock_api_client.post.assert_not_called()
+
+    def test_upload_proxies_422(self, logged_in_client, mock_api_client):
+        import io
+
+        mock_api_client.post.return_value = {
+            "error": True, "status_code": 422, "detail": "file mancante: a.dxf",
+        }
+        resp = logged_in_client.post(
+            "/maker/api/vision/tasks/7/recipe",
+            data={"recipe": (io.BytesIO(b"{}"), "r.json")},
+            content_type="multipart/form-data",
+        )
+        assert resp.status_code == 422
+        assert "a.dxf" in resp.get_json()["detail"]
+
+    def test_get_recipe_proxies(self, logged_in_client, mock_api_client):
+        mock_api_client.get.return_value = {
+            "task_id": 7, "recipe_dir": None, "recipe": None, "files": [], "outputs": [],
+        }
+        resp = logged_in_client.get("/maker/api/vision/tasks/7/recipe")
+        assert resp.status_code == 200
+        mock_api_client.get.assert_called_once_with("/api/vision/tasks/7/recipe")
+
+
+class TestTaskEditorVisionUi:
+    """task_editor.html espone i tipi visione e la select vision_output (#46)."""
+
+    def test_editor_has_vision_types_and_section(self, logged_in_client, mock_api_client):
+        from tests.conftest import api_get_router
+
+        mock_api_client.get.side_effect = api_get_router({
+            "/api/recipes/3": {"id": 3, "code": "R", "name": "R"},
+            "/api/recipes/3/tasks": [{
+                "id": 11, "title": "T", "task_type": "dxf_compare", "subtasks": [],
+                "file_path": None, "order_index": 1,
+            }],
+        })
+        html = logged_in_client.get("/maker/recipes/3/tasks").get_data(as_text=True)
+        assert 'value="camera_measure"' in html
+        assert 'value="dxf_compare"' in html
+        assert "visionRecipe(" in html
+        assert "vision_output" in html
+        assert "js/vision_recipe.js" in html