scan food
with mock db, real db[openfoodfacts] to be implemented
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dimitar committed
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@@ -39,9 +39,10 @@ function QuickActionItem({ icon, label, gradient, onPress }: QuickActionProps) {
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interface QuickActionGridProps {
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onTrackMealPress?: () => void;
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onAddWaterPress?: () => void;
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onScanFoodPress?: () => void;
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}
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export function QuickActionGrid({ onTrackMealPress, onAddWaterPress }: QuickActionGridProps) {
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export function QuickActionGrid({ onTrackMealPress, onAddWaterPress, onScanFoodPress }: QuickActionGridProps) {
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return (
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<View style={styles.container}>
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<Text style={styles.sectionTitle}>Quick Actions</Text>
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@@ -67,6 +68,7 @@ export function QuickActionGrid({ onTrackMealPress, onAddWaterPress }: QuickActi
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icon="scan"
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label="Scan Food"
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gradient={theme.gradients.purple}
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onPress={onScanFoodPress}
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/>
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</View>
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</View>
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@@ -0,0 +1,448 @@
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import React, { useState, useEffect } from 'react';
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import { View, Text, StyleSheet, Modal, TouchableOpacity, TextInput, Alert } from 'react-native';
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import { CameraView, useCameraPermissions } from 'expo-camera';
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import { Ionicons } from '@expo/vector-icons';
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import { LinearGradient } from 'expo-linear-gradient';
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import { theme } from '../styles/theme';
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interface ScanFoodModalProps {
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visible: boolean;
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onClose: () => void;
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onAddFood: (calories: number) => void;
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}
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// Mock food database
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const FOOD_DATABASE: { [key: string]: { name: string; calories: number; servingSize: string } } = {
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'0123456789': { name: 'Apple', calories: 95, servingSize: '1 medium' },
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'9876543210': { name: 'Banana', calories: 105, servingSize: '1 medium' },
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'5555555555': { name: 'Protein Bar', calories: 200, servingSize: '1 bar' },
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'1111111111': { name: 'Greek Yogurt', calories: 150, servingSize: '1 cup' },
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};
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export function ScanFoodModal({ visible, onClose, onAddFood }: ScanFoodModalProps) {
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const [permission, requestPermission] = useCameraPermissions();
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const [scanned, setScanned] = useState(false);
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const [foodData, setFoodData] = useState<{ name: string; calories: number; servingSize: string } | null>(null);
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const [servings, setServings] = useState('1');
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useEffect(() => {
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if (visible) {
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setScanned(false);
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setFoodData(null);
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setServings('1');
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}
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}, [visible]);
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const handleBarCodeScanned = ({ data }: { data: string }) => {
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if (scanned) return;
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setScanned(true);
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// Look up food in database
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const food = FOOD_DATABASE[data];
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if (food) {
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setFoodData(food);
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} else {
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// Mock data for unknown barcodes
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setFoodData({
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name: 'Unknown Food',
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calories: 150,
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servingSize: '1 serving'
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});
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}
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};
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const handleConfirm = () => {
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if (foodData) {
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const totalCalories = foodData.calories * parseFloat(servings || '1');
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onAddFood(totalCalories);
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onClose();
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}
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};
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const handleRescan = () => {
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setScanned(false);
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setFoodData(null);
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setServings('1');
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};
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if (!permission) {
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return null;
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}
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if (!permission.granted) {
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return (
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<Modal visible={visible} transparent animationType="slide">
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<View style={styles.permissionContainer}>
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<View style={styles.permissionContent}>
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<Ionicons name="camera-outline" size={64} color={theme.colors.primary} />
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<Text style={styles.permissionTitle}>Camera Permission Required</Text>
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<Text style={styles.permissionText}>
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We need access to your camera to scan food barcodes.
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</Text>
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<TouchableOpacity onPress={requestPermission} style={styles.permissionButtonContainer}>
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<LinearGradient
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colors={theme.gradients.primary}
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style={styles.permissionButton}
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>
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<Text style={styles.permissionButtonText}>Grant Permission</Text>
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</LinearGradient>
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</TouchableOpacity>
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<TouchableOpacity onPress={onClose} style={styles.cancelButton}>
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<Text style={styles.cancelButtonText}>Cancel</Text>
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</TouchableOpacity>
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</View>
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</View>
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</Modal>
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);
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}
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return (
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<Modal visible={visible} animationType="slide">
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<View style={styles.container}>
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{!foodData ? (
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<>
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<View style={styles.header}>
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<TouchableOpacity onPress={onClose} style={styles.closeButton}>
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<Ionicons name="close" size={28} color="#fff" />
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</TouchableOpacity>
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<Text style={styles.title}>Scan Food Barcode</Text>
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<View style={{ width: 28 }} />
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</View>
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<CameraView
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style={styles.camera}
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facing="back"
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onBarcodeScanned={scanned ? undefined : handleBarCodeScanned}
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barcodeScannerSettings={{
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barcodeTypes: ['ean13', 'ean8', 'upc_a', 'upc_e', 'code128', 'code39'],
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}}
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>
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<View style={styles.scanOverlay}>
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<View style={styles.scanFrame} />
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<Text style={styles.scanText}>Position barcode within frame</Text>
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</View>
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</CameraView>
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</>
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) : (
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<View style={styles.resultContainer}>
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<View style={styles.resultHeader}>
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<TouchableOpacity onPress={onClose} style={styles.closeButton}>
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<Ionicons name="close" size={28} color={theme.colors.gray900} />
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</TouchableOpacity>
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<Text style={styles.resultTitle}>Food Details</Text>
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<View style={{ width: 28 }} />
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</View>
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<View style={styles.foodCard}>
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<View style={styles.foodIconContainer}>
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<LinearGradient
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colors={theme.gradients.success}
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style={styles.foodIcon}
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>
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<Ionicons name="restaurant" size={32} color="#fff" />
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</LinearGradient>
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</View>
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<Text style={styles.foodName}>{foodData.name}</Text>
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<Text style={styles.servingSize}>{foodData.servingSize}</Text>
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<View style={styles.caloriesBadge}>
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<Text style={styles.caloriesValue}>{foodData.calories}</Text>
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<Text style={styles.caloriesLabel}>kcal per serving</Text>
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</View>
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<View style={styles.servingsContainer}>
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<Text style={styles.label}>Number of Servings</Text>
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<View style={styles.servingsInput}>
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<TouchableOpacity
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onPress={() => setServings(String(Math.max(0.5, parseFloat(servings || '1') - 0.5)))}
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style={styles.servingsButton}
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>
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<Ionicons name="remove" size={20} color={theme.colors.primary} />
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</TouchableOpacity>
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<TextInput
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style={styles.servingsValue}
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value={servings}
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onChangeText={setServings}
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keyboardType="decimal-pad"
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/>
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<TouchableOpacity
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onPress={() => setServings(String(parseFloat(servings || '1') + 0.5))}
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style={styles.servingsButton}
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>
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<Ionicons name="add" size={20} color={theme.colors.primary} />
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</TouchableOpacity>
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</View>
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</View>
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<View style={styles.totalCalories}>
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<Text style={styles.totalLabel}>Total Calories</Text>
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<Text style={styles.totalValue}>
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{Math.round(foodData.calories * parseFloat(servings || '1'))} kcal
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</Text>
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</View>
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</View>
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<View style={styles.buttonRow}>
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<TouchableOpacity onPress={handleRescan} style={styles.rescanButton}>
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<Text style={styles.rescanButtonText}>Scan Again</Text>
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</TouchableOpacity>
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<TouchableOpacity onPress={handleConfirm} style={styles.confirmButtonContainer}>
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<LinearGradient
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colors={theme.gradients.success}
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style={styles.confirmButton}
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>
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<Text style={styles.confirmButtonText}>Add to Diary</Text>
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</LinearGradient>
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</TouchableOpacity>
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</View>
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</View>
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)}
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</View>
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</Modal>
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);
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}
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const styles = StyleSheet.create({
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container: {
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flex: 1,
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backgroundColor: '#000',
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},
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header: {
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flexDirection: 'row',
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justifyContent: 'space-between',
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alignItems: 'center',
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padding: 20,
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paddingTop: 60,
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backgroundColor: 'rgba(0, 0, 0, 0.8)',
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},
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closeButton: {
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padding: 4,
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},
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title: {
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fontSize: 18,
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fontWeight: '700',
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color: '#fff',
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},
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camera: {
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flex: 1,
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},
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scanOverlay: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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backgroundColor: 'rgba(0, 0, 0, 0.3)',
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},
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scanFrame: {
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width: 250,
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height: 250,
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borderWidth: 2,
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borderColor: '#fff',
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borderRadius: 20,
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backgroundColor: 'transparent',
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},
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scanText: {
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color: '#fff',
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fontSize: 16,
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fontWeight: '600',
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marginTop: 24,
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textAlign: 'center',
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},
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resultContainer: {
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flex: 1,
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backgroundColor: theme.colors.background,
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},
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resultHeader: {
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flexDirection: 'row',
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justifyContent: 'space-between',
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alignItems: 'center',
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padding: 20,
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paddingTop: 60,
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backgroundColor: '#fff',
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},
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resultTitle: {
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fontSize: 18,
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fontWeight: '700',
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color: theme.colors.gray900,
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},
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foodCard: {
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margin: 20,
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padding: 24,
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backgroundColor: '#fff',
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borderRadius: 24,
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alignItems: 'center',
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...theme.shadows.medium,
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},
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foodIconContainer: {
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marginBottom: 16,
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},
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foodIcon: {
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width: 80,
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height: 80,
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borderRadius: 40,
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justifyContent: 'center',
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alignItems: 'center',
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},
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foodName: {
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fontSize: 24,
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fontWeight: '700',
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color: theme.colors.gray900,
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marginBottom: 8,
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textAlign: 'center',
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},
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servingSize: {
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fontSize: 16,
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color: theme.colors.gray600,
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marginBottom: 24,
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},
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caloriesBadge: {
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backgroundColor: theme.colors.gray50,
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paddingHorizontal: 24,
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paddingVertical: 16,
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borderRadius: 16,
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alignItems: 'center',
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marginBottom: 32,
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},
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caloriesValue: {
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fontSize: 32,
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fontWeight: '700',
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color: theme.colors.primary,
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},
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caloriesLabel: {
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fontSize: 14,
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color: theme.colors.gray600,
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marginTop: 4,
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},
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servingsContainer: {
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width: '100%',
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marginBottom: 24,
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},
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label: {
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fontSize: 16,
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fontWeight: '600',
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color: theme.colors.gray700,
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marginBottom: 12,
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},
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servingsInput: {
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flexDirection: 'row',
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alignItems: 'center',
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justifyContent: 'center',
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gap: 16,
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},
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servingsButton: {
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width: 40,
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height: 40,
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borderRadius: 20,
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backgroundColor: theme.colors.gray100,
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justifyContent: 'center',
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alignItems: 'center',
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},
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servingsValue: {
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fontSize: 24,
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fontWeight: '700',
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color: theme.colors.gray900,
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textAlign: 'center',
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minWidth: 60,
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},
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totalCalories: {
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width: '100%',
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flexDirection: 'row',
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justifyContent: 'space-between',
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alignItems: 'center',
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paddingTop: 24,
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borderTopWidth: 1,
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borderTopColor: theme.colors.gray200,
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},
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totalLabel: {
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fontSize: 16,
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fontWeight: '600',
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color: theme.colors.gray700,
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},
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totalValue: {
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fontSize: 20,
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fontWeight: '700',
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color: theme.colors.gray900,
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},
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buttonRow: {
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flexDirection: 'row',
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padding: 20,
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gap: 12,
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},
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rescanButton: {
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flex: 1,
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paddingVertical: 16,
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borderRadius: 20,
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backgroundColor: theme.colors.gray100,
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alignItems: 'center',
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},
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rescanButtonText: {
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fontSize: 16,
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fontWeight: '700',
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color: theme.colors.gray700,
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},
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confirmButtonContainer: {
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flex: 1,
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},
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confirmButton: {
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paddingVertical: 16,
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borderRadius: 20,
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alignItems: 'center',
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},
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confirmButtonText: {
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fontSize: 16,
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fontWeight: '700',
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color: '#fff',
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},
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permissionContainer: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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backgroundColor: 'rgba(0, 0, 0, 0.5)',
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},
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permissionContent: {
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backgroundColor: '#fff',
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borderRadius: 24,
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padding: 32,
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margin: 20,
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alignItems: 'center',
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...theme.shadows.strong,
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},
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permissionTitle: {
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fontSize: 20,
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fontWeight: '700',
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color: theme.colors.gray900,
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marginTop: 16,
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marginBottom: 8,
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},
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permissionText: {
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fontSize: 16,
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color: theme.colors.gray600,
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textAlign: 'center',
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marginBottom: 24,
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},
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permissionButtonContainer: {
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width: '100%',
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marginBottom: 12,
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},
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permissionButton: {
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paddingVertical: 16,
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borderRadius: 20,
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alignItems: 'center',
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},
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permissionButtonText: {
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fontSize: 16,
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fontWeight: '700',
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color: '#fff',
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},
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cancelButton: {
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paddingVertical: 12,
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},
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cancelButtonText: {
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fontSize: 16,
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fontWeight: '600',
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color: theme.colors.gray600,
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},
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});
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