import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:invoiceninja_flutter/data/models/models.dart';
import 'package:invoiceninja_flutter/utils/formatting.dart';
import 'package:invoiceninja_flutter/utils/localization.dart';
import 'package:invoiceninja_flutter/utils/platforms.dart';
import 'package:url_launcher/url_launcher.dart';

class ClientViewDetails extends StatefulWidget {
  const ClientViewDetails({this.client});

  final ClientEntity client;

  @override
  _ClientViewDetailsState createState() => _ClientViewDetailsState();
}

class _ClientViewDetailsState extends State<ClientViewDetails> {
  Future<Null> _launched;

  Future<Null> _launchURL(BuildContext context, String url) async {
    final localization = AppLocalization.of(context);
    if (await canLaunch(url)) {
      await launch(url, forceSafariVC: false, forceWebView: false);
    } else {
      throw '${localization.couldNotLaunch}';
    }
  }

  Widget _launchStatus(BuildContext context, AsyncSnapshot<Null> snapshot) {
    final localization = AppLocalization.of(context);
    if (snapshot.hasError) {
      return Text('${localization.error}: ${snapshot.error}');
    } else {
      return const Text('');
    }
  }

  @override
  Widget build(BuildContext context) {
    final localization = AppLocalization.of(context);
    final client = widget.client;

    List<Widget> _buildDetailsList() {
      final listTiles = <Widget>[];
      final contacts = client.contacts;

      contacts.forEach((contact) {
        if ((contact.email ?? '').isNotEmpty) {
          listTiles.add(AppListTile(
            icon: Icons.email,
            title: contact.fullName + '\n' + contact.email,
            copyValue: contact.email,
            subtitle: localization.email,
            onTap: () => setState(() {
              _launched = _launchURL(context, 'mailto:' + contact.email);
            }),
          ));
        }

        if ((contact.phone ?? '').isNotEmpty) {
          listTiles.add(AppListTile(
            icon: Icons.phone,
            title: contact.fullName + '\n' + contact.phone,
            copyValue: contact.phone,
            subtitle: localization.phone,
            onTap: () => setState(() {
              _launched =
                  _launchURL(context, 'sms:' + cleanPhoneNumber(contact.phone));
              //_launched = _launchURL('tel:' + cleanPhoneNumber(contact.phone));
            }),
          ));
        }
      });

      if ((client.website ?? '').isNotEmpty) {
        listTiles.add(AppListTile(
          icon: Icons.link,
          title: client.website,
          subtitle: localization.website,
          onTap: () => setState(() {
            _launched = _launchURL(context, formatURL(client.website));
          }),
        ));
      }

      if ((client.workPhone ?? '').isNotEmpty) {
        listTiles.add(AppListTile(
          icon: Icons.phone,
          title: client.workPhone,
          subtitle: localization.phone,
          onTap: () => setState(() {
            _launched = _launchURL(
                context, 'sms:' + cleanPhoneNumber(client.workPhone));
            //_launched = _launchURL('tel:' + cleanPhoneNumber(client.workPhone));
          }),
        ));
      }

      /*
      if (listTiles.isNotEmpty) {
        listTiles.add(
          Container(
            color: Theme.of(context).backgroundColor,
            height: 12.0,
          ),
        );
      }
      */

      if ((client.vatNumber ?? '').isNotEmpty) {
        listTiles.add(AppListTile(
          icon: Icons.location_city,
          title: client.vatNumber,
          subtitle: localization.vatNumber,
        ));
      }

      if ((client.idNumber ?? '').isNotEmpty) {
        listTiles.add(AppListTile(
          icon: Icons.business,
          title: client.idNumber,
          subtitle: localization.idNumber,
        ));
      }

      final billingAddress = formatAddress(object: client);
      final shippingAddress = formatAddress(object: client, isShipping: true);

      if (billingAddress.isNotEmpty) {
        listTiles.add(AppListTile(
            icon: Icons.pin_drop,
            title: billingAddress,
            subtitle: localization.billingAddress,
            onTap: () {
              _launched = _launchURL(
                  context,
                  getMapURL(context) +
                      Uri.encodeFull(
                          formatAddress(object: client, delimiter: ',')));
            }));
      }

      if (shippingAddress.isNotEmpty) {
        listTiles.add(AppListTile(
            icon: Icons.pin_drop,
            title: shippingAddress,
            subtitle: localization.shippingAddress,
            onTap: () {
              _launched = _launchURL(
                  context,
                  getMapURL(context) +
                      Uri.encodeFull(formatAddress(
                          object: client, delimiter: ',', isShipping: true)));
            }));
      }

      listTiles.add(Padding(
        padding: const EdgeInsets.all(14.0),
        child: FutureBuilder<Null>(future: _launched, builder: _launchStatus),
      ));

      return listTiles;
    }

    return ListView(
      children: _buildDetailsList(),
    );
  }
}

class AppListTile extends StatelessWidget {
  const AppListTile({
    this.icon,
    this.title,
    this.subtitle,
    this.dense = false,
    this.onTap,
    this.copyValue,
  });

  final IconData icon;
  final String title;
  final String subtitle;
  final bool dense;
  final Function onTap;
  final String copyValue;

  @override
  Widget build(BuildContext context) {
    return Material(
      color: Theme.of(context).canvasColor,
      child: ListTile(
        contentPadding: EdgeInsets.only(left: 12.0, top: 8.0, bottom: 8.0),
        leading: Icon(icon),
        title: Text(title),
        subtitle: subtitle == null ? Container() : Text(subtitle),
        dense: dense,
        onTap: onTap,
        onLongPress: () {
          Clipboard.setData(ClipboardData(text: copyValue ?? title));
          Scaffold.of(context).showSnackBar(SnackBar(
              content: Text(AppLocalization.of(context)
                  .copiedToClipboard
                  .replaceFirst(':value', copyValue ?? title))));
        },
      ),
    );
  }
}