107 lines
2.3 KiB
TypeScript
107 lines
2.3 KiB
TypeScript
import { Nfc } from "./nfc.js";
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import { NfcUtils } from "./utils.js";
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import { NFCDefinition } from "./definitions.js";
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/**
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* A simplified API for common NFC reading operations
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*/
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export class SimpleNfc {
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private nfc: Nfc;
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private scanCallback: ((text: string, type: string) => void) | null = null;
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constructor() {
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this.nfc = new Nfc();
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}
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/**
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* Check if NFC is available on this device/browser
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*/
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async isAvailable(): Promise<boolean> {
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try {
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const result = await this.nfc.isEnabled();
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return result.enabled;
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} catch (e) {
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return false;
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}
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}
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/**
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* Start scanning for NFC tags with a simplified callback
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* The callback will receive text content and content type ('text', 'url', or 'other')
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*/
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async startReading(
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callback: (content: string, type: string) => void
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): Promise<void> {
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this.scanCallback = callback;
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// Set up the tag detection listener
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await this.nfc.addListener("tagDetected", (tag) => {
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// Try to get URL first
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const url = NfcUtils.getUrlFromTag(tag);
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if (url) {
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this.scanCallback?.(url, "url");
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return;
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}
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// Then try to get text
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const text = NfcUtils.getTextFromTag(tag);
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if (text) {
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this.scanCallback?.(text, "text");
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return;
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}
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// If we got here, we have other content
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if (tag.messages.length > 0 && tag.messages[0].records.length > 0) {
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const firstRecord = tag.messages[0].records[0];
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this.scanCallback?.(firstRecord.payload || "Unknown content", "other");
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} else {
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this.scanCallback?.("Empty tag", "other");
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}
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});
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// Start the actual scan
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await this.nfc.startScanSession();
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}
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/**
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* Stop scanning for NFC tags
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*/
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async stopReading(): Promise<void> {
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this.scanCallback = null;
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await this.nfc.stopScanSession();
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await this.nfc.removeAllListeners();
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}
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/**
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* Write a simple text to an NFC tag
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*/
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async writeText(text: string): Promise<void> {
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const textRecord = NfcUtils.createTextRecord(text);
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await this.nfc.write({
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message: {
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records: [textRecord],
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},
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});
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}
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/**
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* Write a URL to an NFC tag
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*/
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async writeUrl(url: string): Promise<void> {
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const urlRecord = NfcUtils.createUriRecord(url);
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await this.nfc.write({
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message: {
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records: [urlRecord],
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},
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});
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}
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/**
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* Read a simple NFC tag
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*/
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read(): NFCDefinition {
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// Dummy implementation
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return { id: "2", data: "simple data" };
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}
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}
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