Sven (AAMOS AI)
146 lines
4.6 KiB
TypeScript
146 lines
4.6 KiB
TypeScript
import { useState } from "react";
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import { Alert, StyleSheet, View } from "react-native";
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import { router } from "expo-router";
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import { CameraView, useCameraPermissions } from "expo-camera";
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import { useQueryClient } from "@tanstack/react-query";
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import { api } from "@/lib/api";
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import { t } from "@/lib/i18n";
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import { Body, Button, Card, Heading, LoadingView, Screen, Small, Spacer } from "@/components/ui";
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import { colors } from "@/lib/theme";
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/**
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* Streckkodsskanning (spec §11): läses LOKALT med kameran, slås upp mot
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* egen produktdatabas → Open Food Facts. Saknas produkten uppmanas
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* användaren att fota förpackningen (READ_NUTRITION_LABEL-flödet).
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*/
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interface BarcodeScanResponse {
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product: {
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id: string;
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name: string;
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brand: string | null;
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nutrition: { values: { kcal: number } } | null;
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} | null;
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}
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export default function BarcodeScreen() {
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const [permission, requestPermission] = useCameraPermissions();
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const [busy, setBusy] = useState(false);
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const [lastCode, setLastCode] = useState<string | null>(null);
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const queryClient = useQueryClient();
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const onScanned = async (gtin: string) => {
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if (busy || gtin === lastCode) return;
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setBusy(true);
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setLastCode(gtin);
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try {
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const result = await api<BarcodeScanResponse>("/v1/scans", {
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method: "POST",
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body: { scanType: "barcode", barcode: gtin, imageCount: 0 },
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});
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if (result.product) {
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Alert.alert(
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result.product.name,
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`${result.product.brand ?? ""}\n${result.product.nutrition ? t("barcode.kcalPer100", { kcal: result.product.nutrition.values.kcal }) : t("barcode.noNutrition")}\n\n${t("barcode.addPrompt")}`,
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[
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{ text: t("common.cancel"), style: "cancel", onPress: () => setBusy(false) },
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{
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text: t("common.add"),
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onPress: () => {
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void addToInventory(result.product!.name);
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},
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},
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],
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);
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} else {
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Alert.alert(t("barcode.unknownTitle"), t("barcode.unknownBody"), [
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{ text: t("common.cancel"), style: "cancel", onPress: () => setBusy(false) },
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{ text: t("barcode.photoPackage"), onPress: () => router.replace("/(tabs)/scan") },
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]);
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}
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} catch (err) {
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Alert.alert(t("common.oops"), err instanceof Error ? err.message : t("common.error"));
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setBusy(false);
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}
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};
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const addToInventory = async (name: string) => {
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try {
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const me = await api<{ activeHouseholdId: string | null }>("/v1/me");
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if (!me.activeHouseholdId) throw new Error(t("barcode.needHousehold"));
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const household = await api<{ storageLocations: Array<{ id: string; type: string }> }>(
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`/v1/households/${me.activeHouseholdId}`,
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);
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const fridge =
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household.storageLocations.find((l) => l.type === "fridge") ??
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household.storageLocations[0];
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if (!fridge) throw new Error(t("barcode.noLocation"));
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await api("/v1/inventory/items", {
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method: "POST",
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body: {
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displayName: name,
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quantity: 1,
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unit: "COUNT",
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storageLocationId: fridge.id,
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source: "barcode",
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},
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});
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await queryClient.invalidateQueries({ queryKey: ["inventory"] });
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router.back();
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} catch (err) {
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Alert.alert(t("common.oops"), err instanceof Error ? err.message : t("common.error"));
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setBusy(false);
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}
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};
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if (!permission) return <LoadingView />;
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if (!permission.granted) {
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return (
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<Screen>
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<Card>
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<Heading>{t("barcode.cameraTitle")}</Heading>
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<Body>{t("barcode.cameraBody")}</Body>
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<Spacer size={8} />
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<Button label={t("barcode.allowCamera")} onPress={() => void requestPermission()} />
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</Card>
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</Screen>
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);
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}
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return (
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<View style={styles.container}>
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<CameraView
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style={StyleSheet.absoluteFill}
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barcodeScannerSettings={{ barcodeTypes: ["ean13", "ean8", "upc_a", "upc_e"] }}
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onBarcodeScanned={(scan) => void onScanned(scan.data)}
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/>
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<View style={styles.overlay}>
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<View style={styles.frame} />
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<Small>{busy ? t("scan.analyzing") : t("barcode.aim")}</Small>
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</View>
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</View>
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);
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}
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const styles = StyleSheet.create({
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container: { flex: 1, backgroundColor: "#000" },
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overlay: {
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position: "absolute",
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top: 0,
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left: 0,
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right: 0,
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bottom: 0,
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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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frame: {
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width: 260,
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height: 160,
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borderWidth: 3,
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borderColor: colors.primary,
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borderRadius: 16,
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backgroundColor: "transparent",
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},
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});
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