import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:protocol_handler/protocol_handler.dart';
import 'package:solian/exts.dart';
import 'package:solian/providers/websocket.dart';
import 'package:solian/providers/auth.dart';
import 'package:solian/services.dart';
import 'package:url_launcher/url_launcher.dart';
import 'package:url_launcher/url_launcher_string.dart';

class SignInPopup extends StatefulWidget {
  const SignInPopup({super.key});

  @override
  State<SignInPopup> createState() => _SignInPopupState();
}

class _SignInPopupState extends State<SignInPopup> with ProtocolListener {
  bool _isBusy = false;

  final _usernameController = TextEditingController();
  final _passwordController = TextEditingController();

  void requestResetPassword() async {
    final username = _usernameController.value.text;
    if (username.isEmpty) {
      context.showErrorDialog('signinResetPasswordHint'.tr);
      return;
    }

    setState(() => _isBusy = true);

    final client = ServiceFinder.configureClient('auth');
    final lookupResp = await client.get('/users/lookup?probe=$username');
    if (lookupResp.statusCode != 200) {
      context.showErrorDialog(lookupResp.bodyString);
      setState(() => _isBusy = false);
      return;
    }

    final resp = await client.post('/users/me/password-reset', {
      'user_id': lookupResp.body['id'],
    });
    if (resp.statusCode != 200) {
      context.showErrorDialog(resp.bodyString);
      setState(() => _isBusy = false);
      return;
    }

    setState(() => _isBusy = false);
    context.showModalDialog('done'.tr, 'signinResetPasswordSent'.tr);
  }

  void performAction() async {
    final AuthProvider auth = Get.find();

    final username = _usernameController.value.text;
    final password = _passwordController.value.text;
    if (username.isEmpty || password.isEmpty) return;

    setState(() => _isBusy = true);

    try {
      await auth.signin(context, username, password);
      await auth.refreshAuthorizeStatus();
      await auth.refreshUserProfile();
    } on RiskyAuthenticateException catch (e) {
      showDialog(
        context: context,
        builder: (context) {
          return AlertDialog(
            title: Text('riskDetection'.tr),
            content: Text('signinRiskDetected'.tr),
            actions: [
              TextButton(
                child: Text('next'.tr),
                onPressed: () {
                  const redirect = 'solink://auth?status=done';
                  launchUrlString(
                    ServiceFinder.buildUrl('passport', '/mfa?redirect_uri=$redirect&ticketId=${e.ticketId}'),
                    mode: LaunchMode.inAppWebView,
                  );
                  Navigator.pop(context);
                },
              )
            ],
          );
        },
      );
      return;
    } catch (e) {
      context.showErrorDialog(e);
      return;
    } finally {
      setState(() => _isBusy = false);
    }

    Get.find<WebSocketProvider>().registerPushNotifications();

    Navigator.pop(context, true);
  }

  @override
  void initState() {
    protocolHandler.addListener(this);
    super.initState();
  }

  @override
  void dispose() {
    protocolHandler.removeListener(this);
    super.dispose();
  }

  @override
  void onProtocolUrlReceived(String url) {
    final uri = url.replaceFirst('solink://', '');
    if (uri == 'auth?status=done') {
      closeInAppWebView();
      performAction();
    }
  }

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      height: MediaQuery.of(context).size.height * 0.9,
      child: Center(
        child: Container(
          width: MediaQuery.of(context).size.width * 0.6,
          constraints: const BoxConstraints(maxWidth: 360),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Image.asset('assets/logo.png', width: 64, height: 64)
                  .paddingOnly(bottom: 4),
              Text(
                'signinGreeting'.tr,
                style: const TextStyle(
                  fontSize: 28,
                  fontWeight: FontWeight.w900,
                ),
              ).paddingOnly(left: 4, bottom: 16),
              TextField(
                autocorrect: false,
                enableSuggestions: false,
                controller: _usernameController,
                autofillHints: const [AutofillHints.username],
                decoration: InputDecoration(
                  isDense: true,
                  border: const OutlineInputBorder(),
                  labelText: 'username'.tr,
                ),
                onTapOutside: (_) =>
                    FocusManager.instance.primaryFocus?.unfocus(),
              ),
              const SizedBox(height: 12),
              TextField(
                obscureText: true,
                autocorrect: false,
                enableSuggestions: false,
                autofillHints: const [AutofillHints.password],
                controller: _passwordController,
                decoration: InputDecoration(
                  isDense: true,
                  border: const OutlineInputBorder(),
                  labelText: 'password'.tr,
                ),
                onTapOutside: (_) =>
                    FocusManager.instance.primaryFocus?.unfocus(),
                onSubmitted: (_) => performAction(),
              ),
              const SizedBox(height: 12),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  TextButton(
                    onPressed: _isBusy ? null : () => requestResetPassword(),
                    style: TextButton.styleFrom(foregroundColor: Colors.grey),
                    child: Text('forgotPassword'.tr),
                  ),
                  TextButton(
                    onPressed: _isBusy ? null : () => performAction(),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Text('next'.tr),
                        const Icon(Icons.chevron_right),
                      ],
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}