import json
import MeCab
import re

import requests

request_url = "http://127.0.0.1:19633"
request_timeout = 10

# Generate Hiragana and Katakana characters
hiragana = tuple(chr(i) for i in range(12353, 12436)) # \u3041 - \u3094
katakana = tuple(chr(i) for i in range(12450, 12532)) # \u30A2 - \u30F4
punctuation = tuple(chr(i) for i in range(65281, 65382))

# Combine both into one tuple
all_kana = hiragana + katakana + punctuation + ('　', 'ー', '・')

KANJI_RE = re.compile(r"[\u4E00-\u9FFF]")

def katakana_to_hiragana(text: str) -> str:
    return "".join(
        chr(ord(ch) - 0x60) if 0x30A1 <= ord(ch) <= 0x30F6 else ch
        for ch in text
    )

# def get_node_reading(node) -> str:
#     features = node.feature.split(",")
#     print()
#     if len(features) >= 8 and features[7] != "*":
#         return katakana_to_hiragana(features[7])
#     return node.surface

def has_kanji(text: str) -> bool:
    return bool(KANJI_RE.search(text))

def get_node_reading(node) -> str:
    features = node.feature.split(",")
    ## These depend on what dictionary is being used.
    if len(features) > 6 and features[6] != "*":
        return katakana_to_hiragana(features[6])
    return node.surface

def annotate_phrase(text: str) -> str:
    tagger = MeCab.Tagger()
    node = tagger.parseToNode(text)
    vocab = ()
    parts = []
    # <ruby>漢<rt>かん</rt></ruby><ruby>字<rt>じ</rt></ruby>
    furi = []
    while node:
        surface = node.surface
        if surface:
            vocab += (surface,)
            if has_kanji(surface):
                reading = get_node_reading(node)
                parts.append(f"{surface}({reading})")
                furi.append(f"<ruby>{surface}<rt>{reading}</rt></ruby>")
            else:
                parts.append(surface)
                furi.append(surface)
        node = node.next

    return {'reading':("".join(parts)),'vocab':vocab,"furigana":("".join(furi))}

def elide(text: str) -> str:
    elide_max_length = 100
    if len(text) > elide_max_length:
        return text[:100] + "..."
    return text

def anki_fields_term(term : str) -> dict:
    params = {
        "text": term,
        "type": "term",
        #"markers": ["audio", "cloze-body-kana", "conjugation", "expression", "furigana", "furigana-plain", "glossary", "glossary-brief", "glossary-no-dictionary", "glossary-first", "glossary-first-brief", "glossary-first-no-dictionary", "part-of-speech", "phonetic-transcriptions", "pitch-accents", "pitch-accent-graphs", "pitch-accent-graphs-jj", "pitch-accent-positions", "pitch-accent-categories", "reading", "tags", "clipboard-image", "clipboard-text", "cloze-body", "cloze-prefix", "cloze-suffix", "dictionary", "dictionary-alias", "document-title", "frequencies", "frequency-harmonic-rank", "frequency-harmonic-occurrence", "frequency-average-rank", "frequency-average-occurrence", "screenshot", "search-query", "popup-selection-text", "sentence", "sentence-furigana", "sentence-furigana-plain", "url"],
        "markers": ["audio", "expression", "cloze-body" , "furigana","furigana-plain", "part-of-speech", "reading", "glossary-first", "glossary-plain-no-dictionary" , "glossary-first-no-dictionary" , "dictionary", "frequencies", "frequency-average-rank", "frequency-average-occurrence", "screenshot", "sentence", "sentence-furigana", "sentence-furigana-plain" ],
        "maxEntries": 2,
        "includeMedia": False,
    }
    response = requests.post(request_url + "/ankiFields", json = params, timeout = request_timeout)
    return json.loads(response.text)

def term_entries(term :str) -> dict:
    #print("Requesting termEntries:")
    params = {
        "term": term,
        "maxEntries": 1,
        "includeMedia": False,
    }
    response = requests.post(request_url + "/termEntries", json = params, timeout = request_timeout)
    return json.loads(response.text)

# perhaps set up a filter parameter.
def flatten_string(node):
    if isinstance(node,str):
        yield node
    elif isinstance(node, list):
        for item in node:
            yield from flatten_string(item)
    elif isinstance(node,dict):
        if isinstance(node.get("content"), str):
            yield node["content"]
        else:
            for v in node.values():
                yield from flatten_string(v)

def extract_text_by_type(node, target_type):
    if isinstance(node,dict):
        data = node.get("data")
        if isinstance(data,dict) and data.get("content") == target_type:
            yield from flatten_string(node.get("content"))
            #yield from ",".join(node.get("content"))
        for value in node.values():
            yield from extract_text_by_type(value, target_type)
    elif isinstance(node,list):
        for item in node:
            yield from extract_text_by_type(item,target_type)

def get_glossary(word :str) -> list:
    glossary = list()
    dict_items = term_entries(word)

    entry = next(iter(dict_items.get("dictionaryEntries",[])),None)
    if entry:
        definition = next(iter(entry.get("definitions",[])),None)
        if definition:
            def_entry = next(iter(definition.get("entries", [])),None)
            if def_entry:
                glossary.extend( list(extract_text_by_type(def_entry, "glossary")) )
    return glossary[:2]