Pantry-first AI prompts, recipe editing, and grocery copyHEADmaster

- Rewrite menu generation to build recipes around existing pantry
  ingredients (max 4-5 extras per recipe); add in_pantry flag per
  ingredient for downstream accuracy
- Flip grocery list logic to ONLY include items not in the pantry,
  with explicit cross-check rule instead of include-everything default
- Strengthen no-menu grocery prompt to handle empty vs. stocked pantry
- Rewrite Commis chat system prompt to treat kitchen context as source
  of truth with explicit response rules per query type
- Align replacement/single-recipe prompts to prefer pantry coverage
- Update system_prompt default to reflect pantry-first identity
- Add PUT /api/recipes/:id endpoint for recipe editing
- Add inline edit mode to recipe detail page (name, type, ingredients,
  instructions, time, servings)
- Add Copy button to grocery list (exports markdown checklist)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 183 insertions, 34 deletions

diff --git a/static/recipe.html b/static/recipe.html
index 2a5614f..34b0669 100644
--- a/static/recipe.html
+++ b/static/recipe.html
@@ -18,46 +18,195 @@
   <script>
     const params = new URLSearchParams(location.search);
     const id = params.get('id');
+    let currentRecipe = null;
+    let isEditMode = false;
+
+    function parseIngredientsFromText(text) {
+      return text.split('\n')
+        .map(line => line.trim())
+        .filter(line => line.length > 0)
+        .map(line => {
+          const parts = line.split(/\s+/);
+          if (parts.length >= 3) {
+            const quantity = parseFloat(parts[0]);
+            if (!isNaN(quantity)) {
+              const unit = parts[1];
+              const name = parts.slice(2).join(' ');
+              return { quantity, unit, name };
+            }
+          }
+          return { name: line, quantity: 1, unit: '' };
+        });
+    }
+
+    function ingredientsToText(ingredients) {
+      if (!Array.isArray(ingredients)) return '';
+      return ingredients.map(i => {
+        if (typeof i === 'string') return i;
+        return [i.quantity, i.unit, i.name].filter(Boolean).join(' ');
+      }).join('\n');
+    }
+
+    function renderViewMode(recipe) {
+      let ingredients = [];
+      try { ingredients = JSON.parse(recipe.ingredients); } catch {}
+
+      const mealType = recipe.meal_type || 'dinner';
+      const typeDisplay = mealType.charAt(0).toUpperCase() + mealType.slice(1);
+      const time = recipe.estimated_time_minutes;
+      const serves = recipe.servings;
+      const meta = [time ? `${time} min` : '', serves ? `serves ${serves}` : ''].filter(Boolean).join(' · ');
+
+      const ingredientList = Array.isArray(ingredients)
+        ? ingredients.map(i => {
+            if (typeof i === 'string') return `<li>${i}</li>`;
+            return `<li>${[i.quantity, i.unit, i.name].filter(Boolean).join(' ')}</li>`;
+          }).join('')
+        : '';
+
+      const instructionSteps = (recipe.instructions || '')
+        .split(/\n+| (?=\d+\. )/)
+        .map(s => s.trim())
+        .filter(Boolean)
+        .map(s => `<p>${s}</p>`)
+        .join('');
+
+      document.title = `${recipe.name} — Commis`;
+      document.getElementById('recipe-content').innerHTML = `
+        <div class="recipe-card-header" style="margin-bottom:0.5rem;display:flex;justify-content:space-between;align-items:start;gap:1rem;">
+          <div>
+            <h1 style="font-size:1.6rem;margin:0;">${recipe.name}</h1>
+            <span class="recipe-type-badge ${mealType}">${typeDisplay}</span>
+          </div>
+          <button class="btn btn-secondary" style="white-space:nowrap;margin-top:0.25rem;" onclick="enterEditMode()">Edit</button>
+        </div>
+        ${recipe.description ? `<p style="color:var(--text-muted);margin:0.5rem 0 1rem;">${recipe.description}</p>` : ''}
+        ${meta ? `<div class="recipe-card-meta" style="margin-bottom:1.5rem;">${meta}</div>` : ''}
+        ${ingredientList ? `<h2 style="font-size:1.1rem;margin-bottom:0.5rem;">Ingredients</h2><ul style="padding-left:1.25rem;line-height:1.8;">${ingredientList}</ul>` : ''}
+        ${instructionSteps ? `<h2 style="font-size:1.1rem;margin:1.5rem 0 0.5rem;">Instructions</h2><div style="line-height:1.7;">${instructionSteps}</div>` : ''}
+      `;
+      isEditMode = false;
+    }
+
+    function renderEditMode(recipe) {
+      let ingredients = [];
+      try { ingredients = JSON.parse(recipe.ingredients); } catch {}
+      const ingredientText = ingredientsToText(ingredients);
+
+      document.getElementById('recipe-content').innerHTML = `
+        <div style="margin-bottom:1.5rem;">
+          <button class="btn btn-secondary" style="margin-bottom:1rem;" onclick="exitEditMode()">← Back</button>
+          <h2 style="font-size:1.4rem;margin:0 0 1.5rem;">Edit Recipe</h2>
+
+          <form id="edit-form" style="display:flex;flex-direction:column;gap:1.5rem;">
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Name</label>
+              <input type="text" id="edit-name" value="${recipe.name}" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;">
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Meal Type</label>
+              <select id="edit-meal-type" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;">
+                <option value="breakfast" ${recipe.meal_type === 'breakfast' ? 'selected' : ''}>Breakfast</option>
+                <option value="lunch" ${recipe.meal_type === 'lunch' ? 'selected' : ''}>Lunch</option>
+                <option value="dinner" ${recipe.meal_type === 'dinner' ? 'selected' : ''}>Dinner</option>
+              </select>
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Description (optional)</label>
+              <textarea id="edit-description" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;min-height:80px;font-family:inherit;" placeholder="Brief description of the recipe">${recipe.description || ''}</textarea>
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Time (minutes, optional)</label>
+              <input type="number" id="edit-time" value="${recipe.estimated_time_minutes || ''}" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;">
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Servings</label>
+              <input type="number" id="edit-servings" value="${recipe.servings}" min="1" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;">
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Ingredients</label>
+              <textarea id="edit-ingredients" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;min-height:150px;font-family:monospace;" placeholder="One ingredient per line (e.g., 1 cup flour)">${ingredientText}</textarea>
+              <p style="color:var(--text-muted);font-size:0.9rem;margin-top:0.25rem;">Format: quantity unit name (e.g., 1 cup flour)</p>
+            </div>
+
+            <div>
+              <label style="display:block;margin-bottom:0.5rem;font-weight:500;">Instructions</label>
+              <textarea id="edit-instructions" style="width:100%;padding:0.5rem;border:1px solid var(--border-color);border-radius:6px;font-size:1rem;box-sizing:border-box;min-height:150px;font-family:inherit;" placeholder="Step-by-step instructions">${recipe.instructions || ''}</textarea>
+            </div>
+
+            <div style="display:flex;gap:1rem;">
+              <button type="button" class="btn btn-primary" onclick="saveRecipe()" style="flex:1;">Save</button>
+              <button type="button" class="btn btn-secondary" onclick="exitEditMode()" style="flex:1;">Cancel</button>
+            </div>
+          </form>
+        </div>
+      `;
+      isEditMode = true;
+    }
+
+    function enterEditMode() {
+      if (currentRecipe) renderEditMode(currentRecipe);
+    }
+
+    function exitEditMode() {
+      if (currentRecipe) renderViewMode(currentRecipe);
+    }
+
+    async function saveRecipe() {
+      const name = document.getElementById('edit-name').value.trim();
+      const meal_type = document.getElementById('edit-meal-type').value;
+      const description = document.getElementById('edit-description').value.trim();
+      const time_minutes = document.getElementById('edit-time').value;
+      const servings = parseInt(document.getElementById('edit-servings').value, 10) || 2;
+      const ingredientText = document.getElementById('edit-ingredients').value.trim();
+      const instructions = document.getElementById('edit-instructions').value.trim();
+
+      if (!name) {
+        alert('Recipe name is required.');
+        return;
+      }
+
+      const ingredients = parseIngredientsFromText(ingredientText);
+      const payload = {
+        name,
+        meal_type,
+        description: description || null,
+        estimated_time_minutes: time_minutes ? parseInt(time_minutes, 10) : null,
+        servings,
+        ingredients: JSON.stringify(ingredients),
+        instructions: instructions || null,
+      };
+
+      try {
+        const response = await fetch(`/api/recipes/${id}`, {
+          method: 'PUT',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(payload),
+        });
+        if (!response.ok) {
+          throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+        }
+        const updated = await response.json();
+        currentRecipe = updated;
+        renderViewMode(currentRecipe);
+      } catch (err) {
+        alert(`Failed to save recipe: ${err.message}`);
+      }
+    }
+
     if (!id) {
       document.getElementById('recipe-content').innerHTML = '<p>No recipe ID provided.</p>';
     } else {
       fetch(`/api/recipes/${id}`)
         .then(r => r.ok ? r.json() : Promise.reject(r.statusText))
         .then(recipe => {
-          let ingredients = [];
-          try { ingredients = JSON.parse(recipe.ingredients); } catch {}
-
-          const mealType = recipe.meal_type || 'dinner';
-          const typeDisplay = mealType.charAt(0).toUpperCase() + mealType.slice(1);
-          const time = recipe.estimated_time_minutes;
-          const serves = recipe.servings;
-          const meta = [time ? `${time} min` : '', serves ? `serves ${serves}` : ''].filter(Boolean).join(' · ');
-
-          const ingredientList = Array.isArray(ingredients)
-            ? ingredients.map(i => {
-                if (typeof i === 'string') return `<li>${i}</li>`;
-                return `<li>${[i.quantity, i.unit, i.name].filter(Boolean).join(' ')}</li>`;
-              }).join('')
-            : '';
-
-          const instructionSteps = (recipe.instructions || '')
-            .split(/\n+| (?=\d+\. )/)
-            .map(s => s.trim())
-            .filter(Boolean)
-            .map(s => `<p>${s}</p>`)
-            .join('');
-
-          document.title = `${recipe.name} — Commis`;
-          document.getElementById('recipe-content').innerHTML = `
-            <div class="recipe-card-header" style="margin-bottom:0.5rem;">
-              <h1 style="font-size:1.6rem;margin:0;">${recipe.name}</h1>
-              <span class="recipe-type-badge ${mealType}">${typeDisplay}</span>
-            </div>
-            ${recipe.description ? `<p style="color:var(--text-muted);margin:0.5rem 0 1rem;">${recipe.description}</p>` : ''}
-            ${meta ? `<div class="recipe-card-meta" style="margin-bottom:1.5rem;">${meta}</div>` : ''}
-            ${ingredientList ? `<h2 style="font-size:1.1rem;margin-bottom:0.5rem;">Ingredients</h2><ul style="padding-left:1.25rem;line-height:1.8;">${ingredientList}</ul>` : ''}
-            ${instructionSteps ? `<h2 style="font-size:1.1rem;margin:1.5rem 0 0.5rem;">Instructions</h2><div style="line-height:1.7;">${instructionSteps}</div>` : ''}
-          `;
+          currentRecipe = recipe;
+          renderViewMode(recipe);
         })
         .catch(err => {
           document.getElementById('recipe-content').innerHTML = `<p>Failed to load recipe: ${err}</p>`;