mirror of
https://github.com/openfoodfacts/smooth-app.git
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e7df9e53e6
* new colors added * colors replaced with constants * colors replaced with constants * colors replaced with constants * colors moved to design_constants.dart * empty attribute helper deleted * imports updated * screenshots updated Co-authored-by: Gayangi Seneviratne <sgayangi@gmail.com>
99 lines
2.9 KiB
Dart
99 lines
2.9 KiB
Dart
import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:openfoodfacts/model/Attribute.dart';
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import 'package:smooth_app/generic_lib/design_constants.dart';
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// TODO(Stephane): Evaluation should come directly from the BE.
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enum AttributeEvaluation {
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UNKNOWN,
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VERY_BAD,
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BAD,
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NEUTRAL,
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GOOD,
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VERY_GOOD,
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}
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Widget getAttributeDisplayIcon(final Attribute attribute) => Padding(
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padding: const EdgeInsets.only(right: VERY_SMALL_SPACE),
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child: _attributeMatchComparison(
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attribute,
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const Icon(CupertinoIcons.question, color: RED_COLOR),
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const Icon(Icons.lens, color: RED_COLOR),
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const Icon(Icons.lens, color: LIGHT_ORANGE_COLOR),
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const Icon(Icons.lens, color: LIGHT_ORANGE_COLOR),
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const Icon(Icons.lens, color: LIGHT_GREEN_COLOR),
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const Icon(Icons.lens, color: LIGHT_GREEN_COLOR),
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),
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);
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bool isMatchAvailable(Attribute attribute) {
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return attribute.status == Attribute.STATUS_KNOWN && attribute.match != null;
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}
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AttributeEvaluation getAttributeEvaluation(Attribute attribute) {
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if (!isMatchAvailable(attribute)) {
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return AttributeEvaluation.UNKNOWN;
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}
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// Note: Match evaluation is temporary, it should come from the server,
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// currently it's computed as:
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// 0-20: Very Bad
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// 21-40: Bad
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// 41-60: Neutral
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// 61-80: Good
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// 81-100: Very good
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// > 100: Unknown
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final int matchGrade = (attribute.match! / 20.0).ceil();
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switch (matchGrade) {
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case 0:
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case 1:
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return AttributeEvaluation.VERY_BAD;
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case 2:
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return AttributeEvaluation.BAD;
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case 3:
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return AttributeEvaluation.NEUTRAL;
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case 4:
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return AttributeEvaluation.GOOD;
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case 5:
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return AttributeEvaluation.VERY_GOOD;
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default:
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// Unknown Match score > 100
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return AttributeEvaluation.UNKNOWN;
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}
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}
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String? getDisplayTitle(final Attribute attribute) {
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if (attribute.id != Attribute.ATTRIBUTE_NOVA) {
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return attribute.title;
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}
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return _getNovaDisplayTitle(attribute);
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}
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String? _getNovaDisplayTitle(final Attribute attribute) =>
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attribute.descriptionShort;
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/// Compares the match score from [attribute] with various thresholds and returns appropriate result.
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T _attributeMatchComparison<T>(
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final Attribute attribute,
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T invalidAttributeResult,
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T lowestMatchResult,
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T lowMatchResult,
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T midMatchResult,
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T highMatchResult,
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T highestMatchResult) {
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final AttributeEvaluation evaluation = getAttributeEvaluation(attribute);
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switch (evaluation) {
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case AttributeEvaluation.UNKNOWN:
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return invalidAttributeResult;
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case AttributeEvaluation.VERY_BAD:
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return lowestMatchResult;
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case AttributeEvaluation.BAD:
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return lowMatchResult;
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case AttributeEvaluation.NEUTRAL:
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return midMatchResult;
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case AttributeEvaluation.GOOD:
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return highMatchResult;
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case AttributeEvaluation.VERY_GOOD:
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return highestMatchResult;
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}
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}
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