Initial
This commit is contained in:
Aditya Pulipaka
329
lib/BlindMasterScreens/addingDevices/device_setup.dart
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329
lib/BlindMasterScreens/addingDevices/device_setup.dart
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import 'dart:async';
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import 'dart:convert';
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import 'package:blind_master/BlindMasterResources/error_snackbar.dart';
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import 'package:blind_master/BlindMasterScreens/addingDevices/set_device_name.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart';
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import 'package:google_fonts/google_fonts.dart';
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class DeviceSetup extends StatefulWidget {
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final BluetoothDevice device;
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const DeviceSetup({super.key, required this.device});
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@override
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State<DeviceSetup> createState() => _DeviceSetupState();
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}
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class _DeviceSetupState extends State<DeviceSetup> {
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List<BluetoothService> _services = [];
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List<String> openNetworks = [];
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List<String> pskNetworks = [];
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late StreamSubscription<List<int>> _ssidSub;
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StreamSubscription<List<int>>? _confirmSub;
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Widget? wifiList;
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String? message;
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String? password;
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final passControl = TextEditingController();
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@override void initState() {
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super.initState();
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initSetup();
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}
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@override
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void dispose() {
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_ssidSub.cancel();
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_confirmSub?.cancel();
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passControl.dispose();
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super.dispose();
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}
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Future setWifiListListener(BluetoothCharacteristic ssidListChar) async {
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setState(() {
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wifiList = null;
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});
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await ssidListChar.setNotifyValue(true);
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_ssidSub = ssidListChar.onValueReceived.listen((List<int> value) {
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List<String> ssidList = [];
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bool noNetworks = false;
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try {
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final val = utf8.decode(value);
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if (val == ';') noNetworks = true;
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ssidList = val
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.split(';')
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.map((s) => s.trim())
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.where((s) => s.isNotEmpty)
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.toList();
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openNetworks = ssidList
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.where((s) => s.split(',')[1] == "OPEN")
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.map((s) => s.split(',')[0])
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.toList();
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pskNetworks = ssidList
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.where((s) => s.split(',')[1] == "SECURED")
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.map((s) => s.split(',')[0])
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.toList();
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} catch (e) {
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if(!mounted)return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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}
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setState(() {
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wifiList = noNetworks
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? SingleChildScrollView(
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physics: const AlwaysScrollableScrollPhysics(),
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child: SizedBox(
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height: MediaQuery.of(context).size.height * 0.6,
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child: const Center(
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child: Text(
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"No networks found...",
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textAlign: TextAlign.center,
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style: TextStyle(fontSize: 15),
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),
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),
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),
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)
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: ssidList.isNotEmpty
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? ListView(
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children: [
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...buildSSIDs()
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],
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)
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: null;
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});
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});
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}
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List<Widget> buildSSIDs() {
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List<Widget> open = openNetworks.map((s) {
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return Card(
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child: ListTile(
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leading: const Icon(Icons.wifi),
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title: Text(s),
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trailing: const Icon(Icons.arrow_forward_ios_rounded),
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onTap: () {
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openConnect(s);
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},
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),
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);
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}).toList();
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List<Widget> secure = pskNetworks.map((s) {
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return Card(
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child: ListTile(
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leading: const Icon(Icons.wifi_password),
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title: Text(s),
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trailing: const Icon(Icons.arrow_forward_ios_rounded),
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onTap: () {
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setPassword(s);
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},
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),
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);
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}).toList();
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return open + secure;
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}
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Future openConnect(String ssid) async {
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await transmitWiFiDetails(ssid, "");
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}
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Future discoverServices() async{
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try {
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_services = await widget.device.discoverServices();
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} catch (e) {
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if(!mounted)return;
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ScaffoldMessenger.of(context).showSnackBar(
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errorSnackbar(e)
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);
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return;
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}
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try {
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_services = _services.where((s) => s.uuid.str.toUpperCase() == "181C").toList();
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if (_services.length != 1) throw Exception("Invalid Bluetooth Broadcast");
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} catch (e) {
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if (!mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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return;
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}
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}
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Future initSetup() async {
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await discoverServices();
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final ssidListChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0000");
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await setWifiListListener(ssidListChar);
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refreshWifiList();
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}
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Future setPassword(String ssid) async {
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String? password = await showDialog(
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context: context,
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builder: (dialogContext) {
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return AlertDialog(
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title: Text(
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ssid,
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style: GoogleFonts.aBeeZee(),
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),
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content: Form(
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autovalidateMode: AutovalidateMode.onUnfocus,
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child: TextFormField(
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controller: passControl,
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obscureText: true,
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decoration: const InputDecoration(hintText: "Enter password"),
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validator: (value) {
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if (value == null) return "null input";
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if (value.length < 8) return "not long enough!";
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return null;
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},
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textInputAction: TextInputAction.send,
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onFieldSubmitted: (value) => Navigator.pop(dialogContext, passControl.text),
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),
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),
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actions: [
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TextButton(
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onPressed: () {
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passControl.clear();
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Navigator.pop(dialogContext);
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},
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child: const Text("Cancel"),
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),
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TextButton(
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onPressed: () {
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Navigator.pop(dialogContext, passControl.text);
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passControl.clear();
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},
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child: const Text("Connect"),
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),
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],
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);
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}
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);
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await transmitWiFiDetails(ssid, password);
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}
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Future transmitWiFiDetails(String ssid, String? password) async {
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if (password == null) return;
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setState(() {
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wifiList = null;
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message = "Attempting Connection...";
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});
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final ssidEntryChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0001");
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try {
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try {
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await ssidEntryChar.write(utf8.encode(ssid), withoutResponse: ssidEntryChar.properties.writeWithoutResponse);
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} catch (e) {
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throw Exception("SSID Write Error");
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}
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} catch (e){
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if(!mounted)return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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refreshWifiList();
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return;
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}
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final passEntryChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0002");
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try {
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try {
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await passEntryChar.write(utf8.encode(password), withoutResponse: passEntryChar.properties.writeWithoutResponse);
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} catch (e) {
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throw Exception("Password Write Error");
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}
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} catch (e){
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if(!mounted)return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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refreshWifiList();
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return;
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}
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final connectConfirmChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0005");
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final tokenEntryChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0003");
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await connectConfirmChar.setNotifyValue(true);
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_confirmSub = connectConfirmChar.onValueReceived.listen((List<int> connectVal) {
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try {
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final connectResponse = utf8.decode(connectVal);
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if (connectResponse == "Connected") {
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if (!mounted) return;
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_confirmSub?.cancel();
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => SetDeviceName(tokenEntryChar: tokenEntryChar, device: widget.device),
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)
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).then((_) {
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if (widget.device.isConnected) {
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refreshWifiList();
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}
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});
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} else if (connectResponse == "Error") {
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_confirmSub?.cancel();
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throw Exception("SSID/Password Incorrect");
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}
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} catch (e) {
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if (!mounted) return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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refreshWifiList();
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return;
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}
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});
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}
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Future refreshWifiList() async{
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final ssidRefreshChar = _services[0].characteristics.lastWhere((c) => c.uuid.str == "0004");
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setState(() {
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message = null;
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});
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try {
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try {
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await ssidRefreshChar.write(utf8.encode("refresh"), withoutResponse: ssidRefreshChar.properties.writeWithoutResponse);
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} catch (e) {
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throw Exception ("Refresh Error");
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}
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} catch (e) {
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if (!mounted)return;
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ScaffoldMessenger.of(context).showSnackBar(errorSnackbar(e));
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}
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text(
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"Select WiFi Network",
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style: GoogleFonts.aBeeZee(),
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),
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backgroundColor: Theme.of(context).primaryColorLight,
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),
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body: RefreshIndicator(
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onRefresh: refreshWifiList,
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child: wifiList ?? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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CircularProgressIndicator(
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color: Theme.of(context).primaryColorLight,
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),
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SizedBox(
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height: 10,
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),
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Text(
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message ?? "Fetching Networks...",
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textAlign: TextAlign.center,
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)
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]
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),
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)
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),
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);
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}
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}
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