import 'package:checker/base/base_state.dart';
import 'package:checker/common.dart';
import 'package:checker/consts.dart';
import 'package:checker/db.dart';
import 'package:checker/strings.dart';
import 'package:flutter/material.dart';

/// Экран проведения покупки.
class PurchaseSuccessScreen extends StatefulWidget {

  PurchaseSuccessScreen(this.val, this.name, this.helper, this.app, this.details);

  final String val;
  final String name;
  final String app;
  final SqliteHelper helper;
  final Map details;

  @override State createState() =>
    new PurchaseSuccessScreenState(val, name, helper, app, details);
}

class PurchaseSuccessScreenState<T> extends BaseState<PurchaseSuccessScreen> {

  PurchaseSuccessScreenState(
    String sum, String username, SqliteHelper helper,
    String app, Map details
  ){
    this.sum = sum;
    this.username = username;
    this.helper = helper;
    this.app = app;
    this.details = details;

    String regexString = r'(\d+) начислено, (\d+).*';
    RegExp regExp = new RegExp(regexString);
    var matches = regExp.allMatches(this.details['sum_bonus']);
    if(matches.length != 0) {
      var match = matches.elementAt(0); // => extract the first (and only) match
      bonusPlus = int.parse(match.group(1));
      bonusMinus = int.parse(match.group(2));
    }

  }

  String sum, username;
  Map details;
  int bonusPlus = 0;
  int bonusMinus = 0;
  int currency;

  @override String getTitle() {
    return StringsLocalization.carryingPurchase();
  }

  @override String getHintString() {
    return null;
  }

  @override Widget build(BuildContext context) {
    if (currency == null) {
      helper.getCurrency().then((currency) {
        setState(() {
          this.currency = currency;
        });
      });
    }
    return getMainWidget();
  }

  @override Widget getScreenContent() {



    List <Widget> widgetList = <Widget>[];
    widgetList.add(getValueWithDescription(StringsLocalization.buyer(), username));
    widgetList.add(getSuccessMessage());
    if (bonusPlus > 0) {
      widgetList.add(getValueWithDescription(StringsLocalization.bonusPlus(), bonusPlus.toString()));
    }
    if (bonusMinus > 0) {
      widgetList.add(getValueWithDescription(StringsLocalization.bonusMinus(), bonusMinus.toString()));
    }
    widgetList.add(getValueWithDescription(StringsLocalization.discountRate(), '${details['discount']}%'));
    widgetList.add(getValueWithDescription(StringsLocalization.discountSum(), '${details['sum_discount']}'));
    widgetList.add(getCoupons());
    widgetList.add( new Expanded(child: new Center()));
    widgetList.add(wrapButton(getScreenMargins(74.0), getScanButton()));

    return new Column(
      children: widgetList
    );
  }

  getScreenMargins(double bottom) {
    double side = 42.0;
    return new EdgeInsets.only(bottom: bottom, left: side, right: side);
  }

  getScanButton() {
    String title = StringsLocalization.scan();
    return buildRaisedButton(title, () => startScanner(context, app, helper));
  }


  ExpansionPanelHeaderBuilder get headerBuilder {
    return (BuildContext context, bool isExpanded) {
      return new Text('Purchase details');
    };
  }


  getCoupons() {
    EdgeInsets margin = new EdgeInsets.only(left: 20.0, right: 20.0);
    TextStyle titleStyle = Theme.of(context).textTheme.button.copyWith(
      fontWeight: FontWeight.bold,
      color: faqTitlesColor
    );

    final List<Widget> detailsRows = <Widget>[];

//    this.details.forEach((key, value) => detailsRows.add(
//      new Text(key)
//      new Row(
//        crossAxisAlignment: CrossAxisAlignment.start,
//        children: <Widget>[
//          new Text('1'),
//          new Text('2'),
//
//          new Container(
//            margin: const EdgeInsets.only(right: 16.0),
//            child: new CircleAvatar(child: new Text('D')),
//          ),
//          new Column(
//            crossAxisAlignment: CrossAxisAlignment.start,
//            children: <Widget>[
//              new Text(key, style: Theme.of(context).textTheme.subhead),
//              new Container(
//                margin: const EdgeInsets.only(top: 0.5),
//                child: new Text(key)
//              )
//            ]
//          )
//        ],
//      )
//    ));

    print(detailsRows.length);

    return new Container(
      margin: margin,
      child: new Card(
        child: new ExpansionTile(
          //key: new PageStorageKey<Entry>(root),
          title: new Text(
            'Coupons',
            style: titleStyle
          ),
          children: [
            new Container(
              margin: margin,
              padding: new EdgeInsets.only(top: 12.0, bottom: 20.0),
              child: new Text('Coupons'),
              decoration: new BoxDecoration(
                border: new Border(
                  top: new BorderSide(
                    color: greyTextColor,
                    width: 0.5
                  )
                )
              )
            )
          ]
        )
      )
    );
  }

  getSuccessMessage() {
    return new Row(
      children: <Widget>[
        new Expanded(child: new Container(
          margin: new EdgeInsets.only(top: 20.0), height: 64.0,
          decoration: new BoxDecoration(color: greenBackground),
          child: new Center(
            child: new Text(
              getMessageTitle(), textAlign: TextAlign.center,
              style: new TextStyle(
                fontWeight: FontWeight.bold,
                color: tokenActiveTextColor
              )
            )
          )
        ))
      ]);
  }

  getMessageTitle() {
    if (currency != null) {
      return StringsLocalization.purchaseCompleted(sum, currency);
    } else {
      return '';
    }
  }

}