APP_NEW/lib/Class/Question/question_decoder.dart

import 'package:flutter/material.dart';
import 'package:lamiter/Class/Question/dtq.dart';
import 'package:lamiter/Class/Question/iq.dart';
import 'package:lamiter/Class/Question/question.dart';
import 'package:lamiter/Class/Question/scq.dart';
import 'package:lamiter/Class/Question/sdq.dart';
import 'package:lamiter/Class/Question/tfq.dart';
import 'package:lamiter/Provider/Form/form_provider.dart';

class QuestionDecoder<T extends FormProvider> {
  TextInputType _getSDQKeybaordType(int id) {
    /*
    TextInputType.text = 0
    TextInputType.multiline = 1
    TextInputType.name = 2
    TextInputType.number = 3
    TextInputType.emailAddress = 4
    */
    switch (id) {
      case 0:
        return TextInputType.text;
      case 1:
        return TextInputType.multiline;
      case 2:
        return TextInputType.name;
      case 3:
        return TextInputType.number;
      case 4:
        return TextInputType.emailAddress;
      case 5:
        return const TextInputType.numberWithOptions(decimal: true);
      default:
        return TextInputType.text;
    }
  }

  TextCapitalization _getSDQTextCapitalization(int id) {
    /*
    TextCapitalization.none = 0
    TextCapitalization.words = 1
    TextCapitalization.sentences = 2
    */
    switch (id) {
      case 0:
        return TextCapitalization.none;
      case 1:
        return TextCapitalization.words;
      case 2:
        return TextCapitalization.sentences;
      default:
        return TextCapitalization.none;
    }
  }

  SDQValidator _getSDQValidator(int id) {
    switch (id) {
      case 0:
        return SDQValidator.none;
      case 1:
        return SDQValidator.nonNull;
      case 2:
        return SDQValidator.email;
      case 3:
        return SDQValidator.phoneNumber;
      case 4:
        return SDQValidator.positiveNumber;
      default:
        return SDQValidator.none;
    }
  }

  IQLayoutShape _getIQLayoutShape(int id) {
    switch (id) {
      case 0:
        return IQLayoutShape.circle;
      case 1:
        return IQLayoutShape.rectangle;
      default:
        return IQLayoutShape.circle;
    }
  }

  List<Question> decode(List<dynamic> response) {
    List<Question> form = [];
    for (final questionJson in response) {
      final layoutJson = questionJson['layoutAttributes'];
      switch (questionJson['layoutType']) {
        case 'sdq':
          form.add(
            SDQ<T>(
              id: questionJson['_id'],
              required: questionJson['required'] ?? false,
              validator: _getSDQValidator(questionJson['validator'] ?? 0),
              attributes: SDQLayoutAttributes(
                title: layoutJson['title'],
                required: questionJson['required'] ?? false,
                hintText: layoutJson['hintText'],
                keyboardType:
                    _getSDQKeybaordType(layoutJson['keyboardType'] ?? 0),
                textCapitalization: _getSDQTextCapitalization(
                    layoutJson['textCapitalization'] ?? 0),
                maxLines: layoutJson['maxLines'] ?? 1,
                obscureText: layoutJson['obscureText'] ?? false,
              ),
            ),
          );
          break;
        case 'tfq':
          form.add(
            TFQ<T>(
              id: questionJson['_id'],
              required: questionJson['required'] ?? false,
              attributes: TFQLayoutAttributes(
                title: layoutJson['title'],
                required: questionJson['required'] ?? false,
                trueIcon: layoutJson['trueIcon'] != null
                    ? IconData(
                        layoutJson['trueIcon'],
                        fontFamily: 'MaterialIcons',
                      )
                    : null,
                falseIcon: layoutJson['falseIcon'] != null
                    ? IconData(
                        layoutJson['falseIcon'],
                        fontFamily: 'MaterialIcons',
                      )
                    : null,
              ),
            ),
          );
          break;
        case 'dtq':
          form.add(
            DTQ<T>(
              id: questionJson['_id'],
              required: questionJson['required'] ?? false,
              attributes: DTQLayoutAttributes(
                title: layoutJson['title'],
                required: questionJson['required'] ?? false,
                hintText: layoutJson['hintText'],
              ),
            ),
          );
          break;
        case 'iq':
          form.add(
            IQ<T>(
              id: questionJson['_id'],
              required: questionJson['required'] ?? false,
              attributes: IQLayoutAttributes(
                title: layoutJson['title'],
                required: questionJson['required'] ?? false,
                sizeWidthFactor: layoutJson['sizeWidthFactor'],
                shape: _getIQLayoutShape(layoutJson['shape'] ?? 0),
              ),
            ),
          );
          break;
        case 'scq':
          form.add(
            SCQ<T>(
              id: questionJson['_id'],
              required: questionJson['required'] ?? false,
              attributes: SCQLayoutAttributes(
                title: layoutJson['title'],
                required: questionJson['required'] ?? false,
                options: (layoutJson['options'] as List<dynamic>?)
                        ?.map((option) => option as String)
                        .toList() ??
                    [],
                scores: (layoutJson['scores'] as List<dynamic>?)
                        ?.map((score) => score as int)
                        .toList() ??
                    [],
              ),
            ),
          );
          break;
        default:
          break;
      }
    }
    return form;
  }
}