import json
import hashlib


base91chars = (
    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
    '0123456789!#$%&()*+,-./:;<=>?@[]^_`{|}~'
)

def anki_guid(text: str) -> str:
    # SHA1-Hash des Front-Felds berechnen
    h = hashlib.sha1(text.encode('utf-8')).digest()
    x = int.from_bytes(h[:8], 'little')  # Anki nimmt die ersten 8 Bytes, little-endian

    # Kodierung in Base91-Zeichenkette (10 Zeichen)
    chars = []
    for _ in range(10):
        chars.append(base91chars[x % len(base91chars)])
        x //= len(base91chars)

    return ''.join(chars)

with open('Schwedisch_Goetheverlag/deck.json', 'r', encoding='utf-8') as f:
    data = json.load(f)


original_notes = data['notes']
new_notes = []
existing_signatures = set()
existing__notemodels = []
for i in data['note_models']:
    existing__notemodels.append(i['crowdanki_uuid'])

for note in original_notes:
    fields = note['fields']
    note_model_uuid = note['note_model_uuid']
    if len(fields) < 3:
        continue

    original_front = fields[0]   # "ich"
    original_back = fields[1]    # "jag"
    original_back_audio = fields[2]   # "[sound:Jag-4718d0.mp3]"
    original_front_uuid = note_model_uuid
    new_uuid = None
    new_note = None

    if original_front_uuid == existing__notemodels[0]:
        # Original:
        # Deutsch (Front)
        # Sverige (Back)
        # Audio (Backaudio)
        # Neu:
        # Sverige (Front)
        # Audio (Frontaudio)
        # Deutsch (Back)

        new_note = {
            "__type__": "Note",
            "fields": [
                original_back,
                original_back_audio,
                original_front
            ],
            "guid": f"{anki_guid(original_back)}",
            "note_model_uuid": existing__notemodels[1],
            "tags": []
        }
        new_notes.append(new_note)

        # new_note = {
        #     "__type__": "Note",
        #     "fields": [
        #         original_front,
        #         original_front_audio,
        #         original_back
        #     ],
        #     "guid": f"{anki_guid(original_front)}",
        #     "note_model_uuid": note_model_uuid[1]
        # }
        # new_notes.append(new_note)
        # print(new_note


data['notes'].extend(new_notes)

with open('Schwedisch_Goetheverlag/crowdanki_export_dupliziert.json', 'w', encoding='utf-8') as f:
    json.dump(data, f, ensure_ascii=False, indent=2)