feat: implement plant health check functionality with AI analysis, credit management, and UI integration

app.json

@@ -2,7 +2,7 @@
   "expo": {
     "name": "GreenLens",
     "slug": "greenlens",
-    "version": "2.1.6",
+    "version": "2.2.1",
     "orientation": "portrait",
     "icon": "./assets/icon.png",
     "userInterfaceStyle": "automatic",
@@ -68,4 +68,4 @@
       }
     }
   }
-}
+}

app/scanner.tsx

@@ -7,6 +7,7 @@ import { Ionicons } from '@expo/vector-icons';
 import { CameraView, useCameraPermissions } from 'expo-camera';
 import { useSafeAreaInsets } from 'react-native-safe-area-context';
 import * as ImagePicker from 'expo-image-picker';
+import * as ImageManipulator from 'expo-image-manipulator';
 import * as Haptics from 'expo-haptics';
 import { usePostHog } from 'posthog-react-native';
 import { useApp } from '../context/AppContext';
@@ -175,6 +176,20 @@ export default function ScannerScreen() {
     };
   }, [isAnalyzing, scanLineProgress, scanPulse]);
 
+  const resizeForAnalysis = async (uri: string): Promise<string> => {
+    if (uri.startsWith('data:')) return uri;
+    try {
+      const result = await ImageManipulator.manipulateAsync(
+        uri,
+        [{ resize: { width: 1024 } }],
+        { compress: 0.6, format: ImageManipulator.SaveFormat.JPEG, base64: true },
+      );
+      return result.base64 ? `data:image/jpeg;base64,${result.base64}` : result.uri;
+    } catch {
+      return uri;
+    }
+  };
+
   const analyzeImage = async (imageUri: string, galleryImageUri?: string) => {
     if (isAnalyzing) return;
 
@@ -342,7 +357,7 @@ export default function ScannerScreen() {
   const takePicture = async () => {
     if (!cameraRef.current || isAnalyzing) return;
     await Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Medium);
-    const photo = await cameraRef.current.takePictureAsync({ base64: true, quality: 0.7 });
+    const photo = await cameraRef.current.takePictureAsync({ base64: true, quality: 0.5 });
     if (photo) {
       const analysisUri = photo.base64
         ? `data:image/jpeg;base64,${photo.base64}`
@@ -358,17 +373,14 @@ export default function ScannerScreen() {
 
     const result = await ImagePicker.launchImageLibraryAsync({
       mediaTypes: ['images'],
-      quality: 0.7,
+      quality: 1,
-      base64: true,
+      base64: false,
     });
     if (!result.canceled && result.assets[0]) {
       const asset = result.assets[0];
-      const uri = asset.base64
+      const analysisUri = await resizeForAnalysis(asset.uri);
-        ? `data:image/jpeg;base64,${asset.base64}`
+      setSelectedImage(asset.uri);
-        : asset.uri;
+      analyzeImage(analysisUri, asset.uri);
-
-      setSelectedImage(uri);
-      analyzeImage(uri, asset.uri || uri);
     }
   };
 

components/ResultCard.tsx

@@ -99,9 +99,9 @@ export const ResultCard: React.FC<ResultCardProps> = ({
 
         <View style={styles.careGrid}>
           {[
-            { icon: 'water' as const, label: t.water, value: result.careInfo.waterIntervalDays <= 7 ? t.waterModerate : t.waterLittle, color: colors.info, bg: colors.infoSoft },
+            { icon: 'water' as const, label: t.water, value: t.waterEveryXDays.replace('{0}', result.careInfo.waterIntervalDays.toString()), color: colors.info, bg: colors.infoSoft },
-            { icon: 'sunny' as const, label: t.light, value: result.careInfo.light, color: colors.warning, bg: colors.warningSoft },
+            { icon: 'sunny' as const, label: t.light, value: result.careInfo.light || t.unknown, color: colors.warning, bg: colors.warningSoft },
-            { icon: 'thermometer' as const, label: t.temp, value: result.careInfo.temp, color: colors.danger, bg: colors.dangerSoft },
+            { icon: 'thermometer' as const, label: t.temp, value: result.careInfo.temp || t.unknown, color: colors.danger, bg: colors.dangerSoft },
           ].map((item) => (
             <View key={item.label} style={[styles.careCard, { backgroundColor: colors.surface, borderColor: colors.border }]}>
               <View style={[styles.careIcon, { backgroundColor: item.bg }]}>
@@ -118,8 +118,8 @@ export const ResultCard: React.FC<ResultCardProps> = ({
             <Text style={[styles.detailsTitle, { color: colors.textSecondary }]}>{t.detailedCare}</Text>
             {[
               { text: t.careTextWater.replace('{0}', result.careInfo.waterIntervalDays.toString()), color: colors.success },
-              { text: t.careTextLight.replace('{0}', result.careInfo.light), color: colors.warning },
+              { text: t.careTextLight.replace('{0}', result.careInfo.light || t.unknown), color: colors.warning },
-              { text: t.careTextTemp.replace('{0}', result.careInfo.temp), color: colors.danger },
+              { text: t.careTextTemp.replace('{0}', result.careInfo.temp || t.unknown), color: colors.danger },
             ].map((item, i) => (
               <View key={i} style={styles.detailRow}>
                 <View style={[styles.detailDot, { backgroundColor: item.color }]} />

server/lib/openai.js

@@ -107,10 +107,16 @@ const normalizeIdentifyResult = (raw, language) => {
   const waterIntervalRaw = getNumber(careInfoRaw.waterIntervalDays);
   const light = getString(careInfoRaw.light);
   const temp = getString(careInfoRaw.temp);
-  if (waterIntervalRaw == null || !light || !temp) {
+  if (waterIntervalRaw == null) {
     return null;
   }
 
+  const LIGHT_DEFAULTS = { de: 'Helles indirektes Licht', es: 'Luz indirecta brillante', en: 'Bright indirect light' };
+  const TEMP_DEFAULTS = { de: '15–25 °C', es: '15–25 °C', en: '59–77 °F (15–25 °C)' };
+  const lang = language || 'en';
+  const resolvedLight = (light && light !== 'Unknown') ? light : (LIGHT_DEFAULTS[lang] || LIGHT_DEFAULTS.en);
+  const resolvedTemp = (temp && temp !== 'Unknown') ? temp : (TEMP_DEFAULTS[lang] || TEMP_DEFAULTS.en);
+
   const fallbackDescription = language === 'de'
     ? `${name} wurde per KI erkannt. Pflegehinweise sind unten aufgefuehrt.`
     : language === 'es'
@@ -124,8 +130,8 @@ const normalizeIdentifyResult = (raw, language) => {
     description: description || fallbackDescription,
     careInfo: {
       waterIntervalDays: Math.round(clamp(waterIntervalRaw, 1, 45)),
-      light,
+      light: resolvedLight,
-      temp,
+      temp: resolvedTemp,
     },
   };
 };
@@ -216,6 +222,10 @@ const buildIdentifyPrompt = (language, mode) => {
     'Rules:',
     nameLanguageInstruction,
     `- "description" and "careInfo.light" must be written in ${getLanguageLabel(language)}.`,
+    `- "careInfo.light": short light requirement in ${getLanguageLabel(language)} (e.g. "bright indirect light", "full sun", "partial shade"). Must always be a real value, never "Unknown".`,
+    language === 'en'
+      ? '- "careInfo.temp": temperature range in both Celsius and Fahrenheit (e.g. "18–24 °C (64–75 °F)"). Must always be a real plant-specific value, never "Unknown".'
+      : '- "careInfo.temp": temperature range in Celsius (e.g. "18–24 °C"). Must always be a real plant-specific value, never "Unknown".',
     '- "botanicalName" must use accepted Latin scientific naming and must not be invented or misspelled.',
     '- If species is uncertain, prefer genus-level naming (for example: "Calathea sp.").',
     '- "confidence" must be between 0 and 1.',
@@ -356,7 +366,7 @@ const identifyPlant = async ({ imageUri, language, mode = 'primary', plan = 'fre
         role: 'user',
         content: [
           { type: 'text', text: buildIdentifyPrompt(language, mode) },
-          { type: 'image_url', image_url: { url: imageUri } },
+          { type: 'image_url', image_url: { url: imageUri, detail: 'low' } },
         ],
       },
     ],
@@ -416,7 +426,7 @@ const analyzePlantHealth = async ({ imageUri, language, plantContext }) => {
         role: 'user',
         content: [
           { type: 'text', text: buildHealthPrompt(language, plantContext) },
-          { type: 'image_url', image_url: { url: imageUri } },
+          { type: 'image_url', image_url: { url: imageUri, detail: 'low' } },
         ],
       },
     ],

utils/translations.ts

@@ -145,6 +145,7 @@ export const translations = {
     temp: "Temperatur",
     
     // Care Values (UI Helper)
+    unknown: "Unbekannt",
     waterModerate: "Mäßig",
     waterLittle: "Wenig",
     waterEveryXDays: "Alle {0} Tage",
@@ -367,6 +368,7 @@ registerToSave: "Sign up to save",
     light: "Light",
     temp: "Temperature",
     
+    unknown: "Unknown",
     waterModerate: "Moderate",
     waterLittle: "Little",
     waterEveryXDays: "Every {0} days",
@@ -588,6 +590,7 @@ registerToSave: "Regístrate para guardar",
     light: "Luz",
     temp: "Temperatura",
     
+    unknown: "Desconocido",
     waterModerate: "Moderado",
     waterLittle: "Poco",
     waterEveryXDays: "Cada {0} días",