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Set the classes to use the
ApiRequestService
to remove the dependency on the `language_tool` package; Enabled changing the spellcheck language on the fly in the `ColoredTextEditingController`. Implementing #25.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,10 @@ | ||
| import 'package:language_tool/language_tool.dart'; | ||
| import 'package:languagetool_textfield/core/dataclasses/language/supported_language.dart'; | ||
|
|
||
| /// A language fetch service interface. | ||
| abstract class LanguageFetchService { | ||
| /// Creates a new [LanguageFetchService]. | ||
| const LanguageFetchService(); | ||
|
|
||
| /// Returns a Future List of [Language]s that are supported by the API. | ||
| Future<List<Language>> fetchLanguages(); | ||
| /// Returns a Future List of APIs [SupportedLanguage]s. | ||
| Future<List<SupportedLanguage>> fetchLanguages(); | ||
| } |
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54 changes: 22 additions & 32 deletions
54
lib/implementations/lang_fetch_service/lang_fetch_service.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,49 +1,39 @@ | ||
| import 'dart:convert'; | ||
| import 'dart:io'; | ||
|
|
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| import 'package:http/http.dart' as http; | ||
| import 'package:language_tool/language_tool.dart'; | ||
| import 'package:languagetool_textfield/domain/api_request_service.dart'; | ||
| import 'package:languagetool_textfield/domain/language_fetch_service.dart'; | ||
|
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| import '../../core/dataclasses/language/supported_language.dart'; | ||
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| /// A class that provide the functionality to fetch the supported language list | ||
| /// from the langtoolplus API and handles the errors occurred. | ||
| class LangFetchService implements LanguageFetchService { | ||
| static const String _uri = 'api.languagetoolplus.com'; | ||
| static const String _path = 'v2/languages'; | ||
| static final Map<String, String> _headers = { | ||
| HttpHeaders.acceptHeader: ContentType.json.value, | ||
| }; | ||
|
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| final ApiRequestService<List<SupportedLanguage>> _fetchService; | ||
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| /// Creates a new [LangFetchService]. | ||
| const LangFetchService(); | ||
| const LangFetchService([ | ||
| this._fetchService = | ||
| const ApiRequestService(_languagesResponseConverter, []), | ||
| ]); | ||
|
|
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| // todo change to using ErrorWrapper when merged | ||
| @override | ||
| Future<List<Language>> fetchLanguages() async { | ||
| final uri = Uri.https(_uri, _path); | ||
| Object? error; | ||
|
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| http.Response? response; | ||
| try { | ||
| response = await http.get(uri, headers: _headers); | ||
| } on http.ClientException catch (err) { | ||
| error = err; | ||
| } | ||
|
|
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| if (error == null && response?.statusCode != HttpStatus.ok) { | ||
| error = http.ClientException( | ||
| response?.reasonPhrase ?? 'Could not request', | ||
| uri, | ||
| ); | ||
| } | ||
|
|
||
| if (response == null || response.bodyBytes.isEmpty) { | ||
| return []; | ||
| } | ||
|
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| final decoded = | ||
| jsonDecode(utf8.decode(response.bodyBytes)) as List<dynamic>; | ||
|
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| return decoded.cast<Map<String, dynamic>>().map(Language.fromJson).toList(); | ||
| Future<List<SupportedLanguage>> fetchLanguages() async { | ||
| final uri = Uri.https(ApiRequestService.apiLink, _path); | ||
|
|
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| return _fetchService.get(uri, headers: _headers); | ||
| } | ||
| } | ||
|
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| List<SupportedLanguage> _languagesResponseConverter(dynamic json) { | ||
| final list = json as List<dynamic>; | ||
|
|
||
| return list | ||
| .cast<Map<String, dynamic>>() | ||
| .map(SupportedLanguage.fromJson) | ||
| .toList(growable: false); | ||
| } |
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109 changes: 74 additions & 35 deletions
109
lib/implementations/lang_tool_service/lang_tool_service.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,50 +1,89 @@ | ||
| import 'package:language_tool/language_tool.dart'; | ||
| import 'package:languagetool_textfield/core/enums/mistake_type.dart'; | ||
| import 'dart:io'; | ||
|
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| import 'package:languagetool_textfield/core/dataclasses/mistake_match.dart'; | ||
| import 'package:languagetool_textfield/domain/api_request_service.dart'; | ||
| import 'package:languagetool_textfield/domain/language_check_service.dart'; | ||
| import 'package:languagetool_textfield/domain/mistake.dart'; | ||
|
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| /// An implementation of language check service with language tool service. | ||
| /// A basic implementation of a [LanguageCheckService]. | ||
| class LangToolService extends LanguageCheckService { | ||
| /// An instance of this class that is used to interact with LanguageTool API. | ||
| final LanguageTool languageTool; | ||
| static const String _path = 'v2/check'; | ||
| static final Map<String, String> _headers = { | ||
| HttpHeaders.acceptHeader: ContentType.json.value, | ||
| HttpHeaders.contentTypeHeader: | ||
| ContentType('application', 'x-www-form-urlencoded', charset: 'utf-8') | ||
| .value, | ||
| }; | ||
|
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| final ApiRequestService<List<MistakeMatch>> _fetchService; | ||
|
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| /// Creates a new instance of the [LangToolService]. | ||
| const LangToolService(this.languageTool); | ||
| const LangToolService([ | ||
| this._fetchService = | ||
| const ApiRequestService(_mistakesResponseConverter, []), | ||
| ]); | ||
|
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| @override | ||
| Future<List<Mistake>> findMistakes(String text) async { | ||
| final writingMistakes = await languageTool.check(text); | ||
| final mistakes = writingMistakes.map( | ||
| (m) => Mistake( | ||
| message: m.message, | ||
| type: _stringToMistakeType( | ||
| m.issueType, | ||
| ), | ||
| offset: m.offset, | ||
| length: m.length, | ||
| replacements: m.replacements, | ||
| ), | ||
| Future<List<Mistake>> findMistakes( | ||
| String text, { | ||
| String checkLanguage = 'auto', | ||
| bool isPicky = false, | ||
| }) async { | ||
| final uri = Uri.https( | ||
| ApiRequestService.apiLink, | ||
| _path, | ||
| ); | ||
|
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| final body = _encodeFormData( | ||
| text, | ||
| language: checkLanguage, | ||
| isPicky: isPicky, | ||
| ); | ||
|
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| final writingMistakes = await _fetchService.post( | ||
| uri, | ||
| headers: _headers, | ||
| body: body, | ||
| ); | ||
|
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| final mistakes = writingMistakes.map(Mistake.fromMatch); | ||
|
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| return mistakes.toList(); | ||
| } | ||
|
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| MistakeType _stringToMistakeType(String issueType) { | ||
| switch (issueType.toLowerCase()) { | ||
| case 'misspelling': | ||
| return MistakeType.misspelling; | ||
| case 'typographical': | ||
| return MistakeType.typographical; | ||
| case 'grammar': | ||
| return MistakeType.grammar; | ||
| case 'uncategorized': | ||
| return MistakeType.uncategorized; | ||
| case 'non-conformance': | ||
| return MistakeType.nonConformance; | ||
| case 'style': | ||
| return MistakeType.style; | ||
| default: | ||
| return MistakeType.other; | ||
| } | ||
| String _encodeFormData( | ||
| String text, { | ||
| required String language, | ||
| required bool isPicky, | ||
| }) { | ||
| final escapedText = Uri.encodeFull(text); | ||
| final formData = '&language=$language' | ||
| '&enabledOnly=false' | ||
| '&level=${isPicky ? 'picky' : 'default'}' | ||
| '&text=$escapedText'; | ||
|
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| return formData; | ||
| } | ||
| } | ||
|
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| /// expected json structure: | ||
| /// ```json | ||
| /// { | ||
| /// ... | ||
| /// matches: [ | ||
| /// {MistakeMatch}, | ||
| /// {MistakeMatch}, | ||
| /// ... | ||
| /// ] | ||
| /// ... | ||
| /// } | ||
| /// ``` | ||
| List<MistakeMatch> _mistakesResponseConverter(dynamic json) { | ||
| final checkJson = json as Map<String, dynamic>; | ||
| final matchesJson = checkJson['matches'] as List<dynamic>; | ||
|
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| return matchesJson | ||
| .cast<Map<String, dynamic>>() | ||
| .map(MistakeMatch.fromJson) | ||
| .toList(growable: false); | ||
| } |
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