From 261528f329dfdd698c6aa24874190ea0c273f0b7 Mon Sep 17 00:00:00 2001
From: Ricardo Campos <ricardompcampos@gmail.com>
Date: Thu, 4 Sep 2025 12:51:43 -0300
Subject: [PATCH] feat: add editing capability

---
 index.html          |   5 ++
 src/appwrite.ts     |  20 ++++++++
 src/foodDatabase.ts |   6 +--
 src/index.ts        | 112 ++++++++++++++++++++++++++++++++++++++++----
 style.css           |  20 +++++++-
 5 files changed, 150 insertions(+), 13 deletions(-)

diff --git a/index.html b/index.html
index 197923d..f3d4dd3 100644
--- a/index.html
+++ b/index.html
@@ -149,6 +149,10 @@
                             <div class="search-results" id="searchResults">
                                 <!-- Results will be populated here -->
                             </div>
+
+                            <!-- Hidden inputs for state -->
+                            <input type="hidden" id="foodIdToUpdate">
+                            <input type="hidden" id="foodTimeToUpdate">
                         </div>
                     </div>
                     <div class="form-group">
@@ -156,6 +160,7 @@
                         <input type="number" id="gramAmount" min="1" step="1" value="100">
                     </div>
                     <button class="add-btn" id="add-food-btn">Add Food</button>
+                    <button class="cancel-btn" id="cancel-food-btn">Cancel</button>
                 </div>
                 <div class="display-none" id="food-preview">
                     <div class="nutrition-summary">
diff --git a/src/appwrite.ts b/src/appwrite.ts
index d3a53b2..3dee252 100644
--- a/src/appwrite.ts
+++ b/src/appwrite.ts
@@ -98,6 +98,26 @@ export class AppwriteDB {
     }
   }
 
+  // Upadte food entry
+  static async updateFoodEntry(documentId: string, entryData: Partial<FoodStorage>) {
+    try {
+      const response = await databases.updateDocument(
+          DATABASE_ID,
+          FOOD_ENTRIES_COLLECTION_ID,
+          documentId,
+          {
+              ...entryData,
+              userId: (await account.get()).$id,
+          }
+      );
+      console.debug('Food entry updated:', response);
+      return response;
+    } catch (error) {
+      console.error('Update food entry error:', error);
+      throw error;
+    }
+  }
+
   // Save food entry
   static async saveUserSettings(userSettings: UserSettings) {
     try {
diff --git a/src/foodDatabase.ts b/src/foodDatabase.ts
index 6156a0d..999acae 100644
--- a/src/foodDatabase.ts
+++ b/src/foodDatabase.ts
@@ -88,6 +88,7 @@ export const foodDatabase: FoodItem[] = [
   { name: 'Melão', info: { calories: 29, protein: 0.7, fat: 0, carbs: 7.5, fiber: 0.3, category: 'fruits', alkaline: true } },
   { name: 'Uva', info: { calories: 53, protein: 0.7, fat: 0.2, carbs: 13.6, fiber: 0.9, category: 'fruits', alkaline: true } },
   { name: 'Goiaba, branca, com casca, crua', info: { calories: 52, protein: 0.9, fat: 0.5, carbs: 12.4, fiber: 6.3, category: 'fruits', alkaline: true } },
+  { name: 'Morango, cru', info: { calories: 30, protein: 0.9, fat: 0.3, carbs: 6.8, fiber: 1.7, category: 'fruits', alkaline: true } },
 
   // Dairy
   { name: 'Iogurte, natural, desnatado', info: { calories: 41, protein: 3.8, fat: 0.3, carbs: 5.8, fiber: 0, category: 'dairy', alkaline: true } },
@@ -117,7 +118,6 @@ export const foodDatabase: FoodItem[] = [
   { name: 'Couve flor, cozida', info: { calories: 19, protein: 1.2, fat: 0.3, carbs: 3.9, fiber: 2.1, category: 'carbs (low)', alkaline: true } },
   { name: 'Pepino', info: { calories: 10, protein: 0.9, fat: 0, carbs: 2, fiber: 1.1, category: 'carbs (low)', alkaline: true } },
   { name: 'Chuchu, cozido', info: { calories: 19, protein: 0.4, fat: 0, carbs: 4.9, fiber: 1.0, category: 'carbs (low)', alkaline: true } },
-  { name: 'Cogumelo Paris, in natura', info: { calories: 17, protein: 4.9, fat: 0, carbs: 1, fiber: 1.7, category: 'proteins', alkaline: true } },
-  { name: 'Milho, verde, enlatado, drenado', info: { calories: 98, protein: 3.2, fat: 2.4, carbs: 17.1, fiber: 4.6, category: 'proteins', alkaline: true } },
-  { name: 'Morango, cru', info: { calories: 30, protein: 0.9, fat: 0.3, carbs: 6.8, fiber: 1.7, category: 'proteins', alkaline: true } },
+  { name: 'Cogumelo Paris, in natura', info: { calories: 17, protein: 4.9, fat: 0, carbs: 1, fiber: 1.7, category: 'carbs (low)', alkaline: true } },
+  { name: 'Milho, verde, enlatado, drenado', info: { calories: 98, protein: 3.2, fat: 2.4, carbs: 17.1, fiber: 4.6, category: 'carbs (low)', alkaline: true } },
 ];
diff --git a/src/index.ts b/src/index.ts
index 5af75ac..749caf5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -285,6 +285,14 @@ function hideLoading() {
   loadingOverlay.classList.add('hidden');
 }
 
+function clearEditing() {
+  searchInput.value = '';
+  getInputById('gramAmount').value = '100';
+  showFoodPreview(false);
+  getButtonById('add-food-btn').innerHTML = 'Add Food';
+  selectedFood = null;
+}
+
 // Clear application data
 function clearAppData() {
   getDivById('caloriesCounter').textContent = '0';
@@ -301,6 +309,7 @@ function clearAppData() {
   totalCaloriesToday = 0;
   totalGramsToday = 0;
   totalAlkalineToday = 0;
+  getButtonById('cancel-food-btn').style.display = 'none';
 }
 
 const getFoodData = (grams: number, foodData: FoodItem): FoodItem => {
@@ -322,7 +331,7 @@ const getFoodData = (grams: number, foodData: FoodItem): FoodItem => {
 const getFoodItemByName = (foodName: string): FoodItem => {
   const foodDataSearch: FoodItem[] = foodDatabase.filter(f => f.name === foodName);
   if (foodDataSearch.length === 0) {
-    throw new Error(`Food not found for name ${name}`);
+    throw new Error(`Food not found for name ${foodName}`);
   }
   return foodDataSearch[0];
 }
@@ -366,7 +375,11 @@ const setupEventListeners = () => {
   });
 
   getButtonById('add-food-btn').addEventListener('click', () => {
-    addFood();
+    if (getButtonById('add-food-btn').innerHTML === 'Add Food') {
+      addFood();
+    } else {
+      updateFood();
+    }
   });
   
   getButtonById('next-month-btn').addEventListener('click', () => {
@@ -388,6 +401,10 @@ const setupEventListeners = () => {
       toggleAuthForms();
   });
 
+  getButtonById('cancel-food-btn').addEventListener('click', () => {
+    clearEditing();
+  });
+
   // Auth forms
   document.getElementById('loginForm')?.addEventListener('submit', handleLogin);
   document.getElementById('registerForm')?.addEventListener('submit', handleRegister);
@@ -545,6 +562,38 @@ function selectFood(food: FoodItem) {
   previewCalories(food);
 }
 
+async function setFoodToEdit(foodId: string) {
+  showLoading();
+
+  try {
+    // get food item
+    const entries = await AppwriteDB.getFoodEntries(selectedDate);
+    const foodToEdit = entries.filter(entry => entry.$id === foodId);
+    if (foodToEdit.length === 0) {
+      swal('Hey!', 'Unable to get food entry from server', 'error');
+      return;
+    }
+
+    // set the selected food name and quantity
+    const foodData: FoodItem = getFoodItemByName(foodToEdit[0].name);
+    selectedFood = foodData;
+    searchInput.value = foodToEdit[0].name;
+    getInputById('gramAmount').value = foodToEdit[0].grams;
+    previewCalories(foodData)
+
+    getButtonById('add-food-btn').innerHTML = 'Save Food';
+    getInputById('foodIdToUpdate').value = foodId;
+    getInputById('foodTimeToUpdate').value = foodToEdit[0].time;
+
+    hideLoading();
+  } catch (error) {
+    console.error('Set food to edit error:', error);
+    swal('Oh no!', 'Failed to load food entry: ' + error.message, 'error');
+  } finally {
+    hideLoading();
+  }
+}
+
 // Hide search results
 function hideSearchResults() {
   searchResults.classList.remove('show');
@@ -584,9 +633,7 @@ function editCardHandler(e: Event) {
   const foodId = card.getAttribute('data-food-id');
 
   if (foodId) {
-    // FIXME: Implement edit functionality
-    // handleEditFood(foodId);
-    window.alert('Edit functionality is not implemented yet.');
+    setFoodToEdit(foodId);
   }
 }
 
@@ -624,6 +671,56 @@ const updateCurrentDate = () => {
   });
 }
 
+const updateFood = async () => {
+  if (!currentUser) {
+    swal('Hey!', 'Please log in to add food entries.', 'info');
+    return;
+  }
+
+  const gramAmount = getInputById('gramAmount');
+    
+  if (!selectedFood || !gramAmount.value) {
+    swal('Hey!', 'Please select a food item and enter the amount', 'error');
+    return;
+  }
+
+  showLoading();
+
+  try {
+    const foodId = getInputById('foodIdToUpdate').value;
+    const grams: number = parseFloat(gramAmount.value);
+    const foodData: FoodItem = getFoodItemByName(selectedFood.name);
+
+    // Current date, with timezone
+    const date = new Date(selectedDate.getTime() - (selectedDate.getTimezoneOffset() * 60000)).toISOString();
+
+    // Calculate nutrition for the amount
+    const proportion: FoodItem = getFoodData(grams, foodData);
+    const entry: FoodStorage = {
+      name: selectedFood.name,
+      grams: grams,
+      calories: proportion.info.calories,
+      protein: proportion.info.protein,
+      fat: proportion.info.fat,
+      carbs: proportion.info.carbs,
+      fiber: proportion.info.fiber,
+      date: date.split('T')[0],
+      alkaline: selectedFood.info.alkaline,
+      time: getInputById('foodTimeToUpdate').value,
+    };
+
+    // Save to Appwrite
+    await AppwriteDB.updateFoodEntry(foodId, entry);
+    clearEditing();
+    selectDate(selectedDate);
+  } catch (error) {
+      console.error('Update food error:', error);
+      swal('Oh no!', 'Failed to update food entry: ' + error.message, 'error');
+  } finally {
+      hideLoading();
+  }
+}
+
 // Add food to the log
 const addFood = async () => {
   if (!currentUser) {
@@ -634,7 +731,7 @@ const addFood = async () => {
   const gramAmount = getInputById('gramAmount');
     
   if (!selectedFood || !gramAmount.value) {
-    swal('Hey!', 'Please select a food item and enter amount', 'error');
+    swal('Hey!', 'Please select a food item and enter the amount', 'error');
     return;
   }
 
@@ -1090,6 +1187,3 @@ function editFood(id: string) {
 }
 
 (window as any).selectFood = selectFood;
-(window as any).toggleCard = toggleCard;
-(window as any).editFood = editFood;
-(window as any).deleteFood = deleteFood;
diff --git a/style.css b/style.css
index ccbe813..bb2345c 100644
--- a/style.css
+++ b/style.css
@@ -402,7 +402,7 @@ h1 {
 
 .add-food-form {
     display: grid;
-    grid-template-columns: 2fr 1fr auto;
+    grid-template-columns: 2fr 1fr 1fr auto;
     gap: 15px;
     align-items: end;
 }
@@ -467,6 +467,24 @@ label {
     box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
 }
 
+.cancel-btn {
+    padding: 17px 25px;
+    background: linear-gradient(135deg, #757575, #616161);
+    color: white;
+    border: none;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 1rem;
+    font-weight: 600;
+    transition: all 0.3s ease;
+    height: fit-content;
+}
+
+.cancel-btn:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
+}
+
 .food-table-section {
     background: white;
     border-radius: 6px;