1# -*- coding: utf-8 -*-
2
3# Copyright (c) 2014 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
4#
5
6"""
7Module implementing the Glosbe translation engine.
8"""
9
10import json
11
12from PyQt5.QtCore import QUrl, QTimer
13
14from .TranslationEngine import TranslationEngine
15
16
17class GlosbeEngine(TranslationEngine):
18    """
19    Class implementing the translation engine for the Glosbe
20    translation service.
21    """
22    TranslatorUrl = "https://glosbe.com/gapi/translate"
23    TranslatorLimit = 500
24
25    def __init__(self, plugin, parent=None):
26        """
27        Constructor
28
29        @param plugin reference to the plugin object (TranslatorPlugin)
30        @param parent reference to the parent object (QObject)
31        """
32        super().__init__(plugin, parent)
33
34        QTimer.singleShot(0, self.availableTranslationsLoaded.emit)
35
36    def engineName(self):
37        """
38        Public method to return the name of the engine.
39
40        @return engine name (string)
41        """
42        return "glosbe"
43
44    def supportedLanguages(self):
45        """
46        Public method to get the supported languages.
47
48        @return list of supported language codes (list of string)
49        """
50        return ["ar", "be", "bg", "bs", "ca", "cs", "da", "de", "el", "en",
51                "es", "et", "fi", "fr", "ga", "gl", "hi", "hr", "hu", "id",
52                "is", "it", "iw", "ja", "ka", "ko", "lt", "lv", "mk", "mt",
53                "nl", "no", "pl", "pt", "ro", "ru", "sk", "sl", "sq", "sr",
54                "sv", "th", "tl", "tr", "uk", "vi", "zh-CN", "zh-TW",
55                ]
56
57    def getTranslation(self, requestObject, text, originalLanguage,
58                       translationLanguage):
59        """
60        Public method to translate the given text.
61
62        @param requestObject reference to the request object
63            (TranslatorRequest)
64        @param text text to be translated (string)
65        @param originalLanguage language code of the original (string)
66        @param translationLanguage language code of the translation (string)
67        @return tuple of translated text (string) and flag indicating
68            success (boolean)
69        """
70        from ..TranslatorLanguagesDb import TranslatorLanguagesDb
71        languages = TranslatorLanguagesDb(self)
72
73        params = "?from={0}&dest={1}&format=json&phrase={2}".format(
74            languages.convertTwoToThree(originalLanguage),
75            languages.convertTwoToThree(translationLanguage),
76            text)
77        url = QUrl(self.TranslatorUrl + params)
78        response, ok = requestObject.get(url)
79        if ok:
80            response = str(response, "utf-8", "replace")
81            try:
82                responseDict = json.loads(response)
83            except ValueError:
84                return self.tr("Glosbe: Invalid response received"), False
85
86            result = ""
87            for translation in responseDict["tuc"]:
88                if "phrase" in translation:
89                    result += "<b>{0}</b>".format(
90                        translation["phrase"]["text"])
91                    if "meanings" in translation:
92                        for meaning in translation["meanings"]:
93                            result += "<br/><i>({0})</i>".format(
94                                meaning["text"])
95                    if translation != responseDict["tuc"][-1]:
96                        result += "<hr/>"
97            if not result:
98                result = self.tr("Glosbe: No translation found.")
99                ok = False
100        else:
101            result = response
102        return result, ok
103