import json
import requests

from PyQt6.QtSql import QSqlQuery
from typing import Type, Self, Dict, Any, Optional

from lib import query_error

API = "https://api.dictionaryapi.dev/api/v2/entries/en/{word}"
MWAPI = "https://www.dictionaryapi.com/api/v3/references/collegiate/json/{word}?key=51d9df34-ee13-489e-8656-478c215e846c"

class Word:
    _instance = None
    _words: Dict[str,str] = {}
    _current: Optional[Dict[str,Any]] = None
    
    def __new__(cls: Type[Self], word:str ) -> Self:
        if cls._instance:
            return cls._instance
        cls._instance = super(Word, cls).__new__(cls)
        return cls._instance

    def __init__(self, word: str) -> None:
        print(f"Word == {word}")
        #
        # Have we already retrieved this word?
        #
        try:
            self._current = json.loads(self._words[word])
            return
        except KeyError:
            pass
        query = QSqlQuery()
        query.prepare("SELECT * FROM words "
                      "WHERE word = :word")
        query.bindValue(":word", word)
        if not query.exec():
            query_error(query)
        if query.next():
            self._words[word] = query.value("definition")
            self._current = json.loads(self._words[word])
            return
        response = requests.get(MWAPI.format(word=word))
        if response.status_code != 200:
            self._current = None
            return
        data = json.loads(response.content.decode("utf-8"))
        #
        # XXX - The first entry should be the correct entry. There could be more
        # if there is a "hom" entry, then that will be appended to meta.id
        # word = "lady", hom=1, meta.id = "lady:1";
        #
        print(response.content.decode('utf-8'))
        self._words[word] = json.dumps(data[0])
        self._current = data[0]
        query.prepare("INSERT INTO words "
                      "(word, definition) "
                      "VALUES (:word, :definition)")
        query.bindValue(":word", word)
        query.bindValue(":definition", self._words[word])
        if not query.exec():
            query_error(query)
        return
    def get_html(self) -> str|None:
        if not self._current:
            return None
        if "meta" in self._current.keys():
            return self.mw_html()
        else:
            return self.apidictionary_html()

    def mw_html(self) -> str:

        def sound_url(prs:Dict[str,Any]) -> str|None:
            base = 'https://media.merriam-webster.com/audio/prons/en/us/ogg'
            if 'sound' not in prs.keys():
                return None
            audio = prs['sound']['audio']
            if audio.startswith('bix'):
                url = base + '/bix/'
            elif audio.startswith('gg'):
                url = base + '/gg/'
            elif audio[0] not in "abcdefghijklmnopqrstuvwxyz":
                url = base + '/number/'
            else:
                url = base + '/' + audio[0] + '/'
            url += audio + '.ogg'
            return url

        def parse_sn(sn:str, old:str) -> str:
            return sn
        
        assert self._current is not None
        word = self._current['hwi']['hw']
        label = self._current['fl']
        html = f"<h1 class=\"def-word\">{word} <span class=\"def-label\">{label}</span></h1>\n"
        if "vrs" in self._current.keys():
            html += "<ol class=\"def-vars\'>\n"
            html += "<li>"
            html += "</li>\n<li>".join([vrs['va'] for vrs in self._current['vrs']])
            html += "</li>\n</ol>\n"
        if 'prs' in self._current['hwi'].keys():
            tmp = []
            for prs in self._current['hwi']['prs']:
                url = sound_url(prs)
                how = prs['mw']
                if url:
                    tmp.append(f'<a href="{url}">\\{how}\\</a>')
                else:
                    tmp.append(f'\\{how}\\')
            html += '<span class="def-phonetic">'
            html += '</span><span="def-phonetic">'.join(tmp)
            html += "</span>\n"
        if 'ins' in self._current.keys():
            html += "<h2 class=\"def-word\">"
            html += ', '.join([ins['if'] for ins in self._current['ins']])
            html += "</h2>\n"
        html += "<ul class='def-outer'>\n"
        for meaning in self._current['def']:
            html += f"<li>{meaning['vd']}\n"
            html += "<ul class=\"def-inner\">\n"
            label = ''
            for sseq in meaning['sseq']:
                for sense in sseq:
                    label = parse_sn(sense[1]['sn'], label)
                    sls = ''
                    if 'sls' in sense[1].keys():
                        sls = ', '.join(sense[1]['sls'])
                        sls = f"<span class=\"def-sls\">{sls}</span> "
                    for dt in sense[1]['dt']:
                        if dt[0] == 'text':
                            html += f"<li class=\"def-text\"><span class=\"def-sn\">{label}</span>{sls}{dt[1]}</li>\n"
                        elif dt[0] == 'vis':
                            for vis in dt[1]:
                                html += f"<li class=\"def-vis\">{vis['t']}</li>\n"
                        else:
                            print(f"Do something with {dt[0]}")
            html += "</ul>\n"
        html += "</ul>\n"
        return html

    def apidictionary_html(self) ->str:
        html = ""
        return html