303 lines
9.9 KiB
Dart
303 lines
9.9 KiB
Dart
import 'models.dart';
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import 'writing_feedback.dart';
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class AssessmentTask {
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const AssessmentTask({
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required this.id,
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required this.skill,
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required this.prompt,
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this.audio,
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this.choices = const [],
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this.answerIndex,
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this.requiredWords = const [],
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required this.abilityId,
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});
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final String id;
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final AssessmentSkill skill;
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final String prompt;
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final String? audio;
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final List<String> choices;
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final int? answerIndex;
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final List<String> requiredWords;
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final String abilityId;
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}
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class AssessmentPack {
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const AssessmentPack({required this.id, required this.tasks});
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final String id;
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final List<AssessmentTask> tasks;
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List<AssessmentTask> forSkill(AssessmentSkill skill) =>
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tasks.where((task) => task.skill == skill).toList();
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}
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final a0AssessmentPacks = [
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AssessmentPack(
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id: 'A0-E1',
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tasks: _tasks(
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'A',
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const [
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'Hello. I’m Mia.|自我介绍|买东西|问时间|0',
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'How do you spell your name?|问姓名拼写|问地点|问时间|0',
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'I’m tired today.|很好|累|来自哪里|1',
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'seven|6|7|8|1',
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'one-three-eight|138|183|318|0',
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'It’s a key.|书|钥匙|包|1',
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'I’m from Hong Kong.|香港|伦敦|北京|0',
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'This is my mother.|妈妈|姐姐|朋友|0',
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'It is Monday.|星期一|星期二|星期三|0',
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'I like tea.|茶|咖啡|电影|0',
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],
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const [
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'Mia: I’m from Hong Kong.\nShen: I’m good.\nMia: My number is one-three-eight.|Mia 来自哪里？|Hong Kong|London|0',
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'Mia: It is Monday.\nShen: It is three o’clock.|几点？|three|one|0',
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'Mia: This is my brother.\nShen: Nice to meet you.|谁是家人？|brother|mother|0',
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'Mia: I like music.\nShen: I like tea.|Shen 喜欢什么？|tea|music|0',
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'Mia: What’s this?\nShen: It’s a pen.|这是什么？|pen|bag|0',
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],
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const [
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'用英语介绍自己。|i,m',
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'用英语说明你来自哪里。|i,m,from',
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'用英语说一个喜好。|i,like',
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'用英语说“这是一支笔”。|it,s,pen',
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'用英语说明星期或整点。|it,s',
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],
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const [
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'介绍姓名、地点、状态/喜好并反问。|hello,i,m,from',
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'完整拼读一个四字母姓名。|a,l,e,x',
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'说一个三位虚拟号码。|one,three,eight',
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'介绍一位家人。|this,my',
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'说明星期。|it,s,monday',
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'说明整点。|it,s,o,clock',
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'请求对方重复或放慢。|please',
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'说出一个物品。|it,s',
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],
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),
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),
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AssessmentPack(
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id: 'A0-E2',
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tasks: _tasks(
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'B',
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const [
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'Hi. My name is Leo.|自我介绍|买东西|问号码|0',
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'How do you spell that?|问姓名拼写|问喜好|问家人|0',
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'I’m okay.|很好|还可以|累|1',
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'four|3|4|5|1',
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'two-nine-six|296|269|926|0',
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'It’s a bag.|笔|包|水|1',
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'I’m from London.|伦敦|香港|北京|0',
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'This is my sister.|姐姐|妈妈|朋友|0',
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'It is Friday.|星期五|星期一|星期日|0',
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'I like coffee.|茶|咖啡|音乐|1',
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],
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const [
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'Mia: I’m from London.\nLeo: I’m okay.\nMia: My number is two-nine-six.|号码是多少？|296|269|0',
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'Mia: It is Friday.\nLeo: It is six o’clock.|几点？|six|three|0',
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'Mia: This is my father.\nLeo: Hi!|谁是家人？|father|brother|0',
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'Mia: I like movies.\nLeo: I like coffee.|Leo 喜欢什么？|coffee|movies|0',
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'Mia: What’s this?\nLeo: It’s water.|这是什么？|water|book|0',
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],
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const [
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'用英语介绍自己。|my,name,is',
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'用英语说明你来自哪里。|i,m,from',
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'用英语说一个喜好。|i,like',
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'用英语说“这是一个包”。|it,s,bag',
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'用英语说明星期或整点。|it,s',
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],
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const [
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'介绍姓名、地点、状态/喜好并反问。|hi,i,m,from',
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'完整拼读一个四字母姓名。|l,e,o,n',
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'说一个三位虚拟号码。|two,nine,six',
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'介绍一位家人。|this,my',
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'说明星期。|it,s,friday',
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'说明整点。|it,s,o,clock',
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'请求对方重复或放慢。|please',
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'说出一个物品。|it,s',
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],
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),
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),
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];
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/// Replacement packs use different people, places, numbers, days and likes.
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/// They keep the same assessed ability but are not immediate replays.
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final a0ReplacementPacks = [
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_replacementPack(a0AssessmentPacks[0], 'A0-E1R', const {
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'Mia': 'Nora',
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'Shen': 'Kai',
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'Hong Kong': 'London',
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'Monday': 'Friday',
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'one-three-eight': 'two-four-seven',
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'138': '247',
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'three o’clock': 'six o’clock',
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'tea': 'coffee',
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'key': 'bag',
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'mother': 'father',
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}),
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_replacementPack(a0AssessmentPacks[1], 'A0-E2R', const {
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'Mia': 'Ava',
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'Leo': 'Bo',
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'London': 'Hong Kong',
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'Friday': 'Tuesday',
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'two-nine-six': 'five-one-four',
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'296': '514',
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'six o’clock': 'two o’clock',
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'coffee': 'music',
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'bag': 'book',
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'sister': 'brother',
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}),
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];
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AssessmentPack? replacementFor(String packId) => switch (packId) {
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'A0-E1' => a0ReplacementPacks[0],
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'A0-E2' => a0ReplacementPacks[1],
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_ => null,
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};
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/// Local checks for the frozen A0 exit tasks. They accept variable names and
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/// places, but require the communicative information named by each task.
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bool checkOpenAssessmentAnswer(AssessmentTask task, String input) {
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final text = input.toLowerCase().replaceAll('’', "'");
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final words = RegExp(
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r"[a-z]+(?:'[a-z]+)?",
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).allMatches(text).map((match) => match.group(0)!).toSet();
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bool has(String word) => words.contains(word);
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bool phrase(String value) => text.contains(value);
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bool hasAny(Iterable<String> values) => values.any(has);
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final introduction = phrase("i'm") || phrase('i am') || phrase('my name is');
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final itIs = phrase("it's") || phrase('it is');
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final numberWords = RegExp(
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r'\b(zero|one|two|three|four|five|six|seven|eight|nine|ten)\b',
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).allMatches(text).length;
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final position = int.tryParse(
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RegExp(r'(\d+)$').firstMatch(task.id)?.group(1) ?? '',
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);
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if (position == null) return false;
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if (task.skill == AssessmentSkill.writing) {
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const lessonIds = ['a0-01', 'a0-06', 'a0-09', 'a0-05', 'a0-08'];
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return position >= 1 &&
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position <= lessonIds.length &&
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WritingFeedback.check(lessonIds[position - 1], input).complete;
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}
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if (task.skill != AssessmentSkill.speaking) return false;
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return switch (position) {
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1 =>
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hasAny(['hello', 'hi']) &&
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introduction &&
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has('from') &&
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(has('like') || hasAny(['good', 'okay', 'tired'])) &&
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hasAny(['what', 'where', 'how', 'do']),
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2 => RegExp(r'[a-z](?:[ -]?[a-z]){3,}').hasMatch(text),
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3 => numberWords >= 3,
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4 =>
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phrase('this is my') && hasAny(['mother', 'father', 'sister', 'brother']),
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5 =>
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itIs &&
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hasAny([
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'monday',
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'tuesday',
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'wednesday',
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'thursday',
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'friday',
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'saturday',
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'sunday',
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]),
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6 =>
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itIs &&
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(has('clock') ||
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has("o'clock") ||
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has('oclock') ||
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phrase("o'clock")),
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7 => has('please') && hasAny(['say', 'speak', 'repeat', 'slow', 'slowly']),
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8 => itIs && hasAny(['book', 'pen', 'bag', 'key', 'water']),
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_ => false,
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};
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}
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AssessmentPack _replacementPack(
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AssessmentPack source,
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String id,
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Map<String, String> values,
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) {
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String replace(String value) {
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var result = value;
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for (final entry in values.entries) {
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result = result.replaceAll(entry.key, entry.value);
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}
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return result;
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}
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return AssessmentPack(
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id: id,
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tasks: source.tasks
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.map(
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(task) => AssessmentTask(
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id: task.id.replaceFirst(
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source.id.split('-').last,
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id.split('-').last,
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),
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skill: task.skill,
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prompt: replace(task.prompt),
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audio: task.audio == null ? null : replace(task.audio!),
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choices: task.choices.map(replace).toList(),
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answerIndex: task.answerIndex,
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requiredWords: task.requiredWords.map(replace).toList(),
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abilityId: task.abilityId,
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),
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)
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.toList(),
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);
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}
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List<AssessmentTask> _tasks(
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String version,
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List<String> listening,
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List<String> reading,
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List<String> writing,
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List<String> speaking,
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) {
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AssessmentTask choice(String raw, AssessmentSkill skill, int index) {
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final fields = raw.split('|');
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return AssessmentTask(
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id: 'A0-$version-${skill.name[0].toUpperCase()}${index + 1}',
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skill: skill,
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audio: skill == AssessmentSkill.listening ? fields[0] : null,
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prompt: skill == AssessmentSkill.listening ? '选择正确答案' : fields[0],
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choices: skill == AssessmentSkill.listening
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? fields.sublist(1, 4)
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: fields.sublist(1, 3),
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answerIndex: int.parse(fields.last),
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abilityId: 'A0-C${(index % 10 + 1).toString().padLeft(2, '0')}',
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);
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}
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AssessmentTask open(String raw, AssessmentSkill skill, int index) {
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final fields = raw.split('|');
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return AssessmentTask(
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id: 'A0-$version-${skill.name[0].toUpperCase()}${index + 1}',
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skill: skill,
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prompt: fields[0],
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requiredWords: fields[1].split(','),
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abilityId: 'A0-C${(index % 10 + 1).toString().padLeft(2, '0')}',
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);
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}
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return [
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...List.generate(
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listening.length,
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(i) => choice(listening[i], AssessmentSkill.listening, i),
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),
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...List.generate(
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reading.length,
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(i) => choice(reading[i], AssessmentSkill.reading, i),
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),
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...List.generate(
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writing.length,
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(i) => open(writing[i], AssessmentSkill.writing, i),
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),
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...List.generate(
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speaking.length,
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(i) => open(speaking[i], AssessmentSkill.speaking, i),
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),
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];
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}
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