import os
from re import escape
import sys
import quopri
import base64
import pickle
import phonenumbers
import pythonvCard4
from pythonvCard4.vcard import Contact

# input should be a valid .vcf file, output in current dir
input_file = open(sys.argv[1], 'r', encoding="latin-1").readlines()
output = open('output.vcf', 'w')

# this only outputs pictures of contacts with multiples in a dir for manual check
# current code stage ignores the problem and chooses the first picture anyway
check_for_multiple_pictures = False

# a contact is defined by its END:VCARD markup
current_card = ""
for line in input_file:
    current_card += line

    if "END:VCARD" in line:
        # the pythonvCard4 parsing assumes a LOT of things
        contact = Contact.from_vcard(current_card)

        # TODO : isolate contacts with multiple pictures
        if check_for_multiple_pictures:
            if "PHOTO" in contact.custom and len(contact.custom["PHOTO"]) > 1:
                os.makedirs("multiple_pictures/" + contact.fn, exist_ok=True)
                for image in range(len(contact.custom["PHOTO"])):
                    print(contact.custom["PHOTO"][image])
                    with open("photo/" + contact.fn + "/" + str(image) + ".jpg", "wb") as f:
                        f.write(base64.decodebytes(str.encode(contact.custom["PHOTO"][image])))

        # choose the first pictures and ignores multiples
        if "PHOTO" in contact.custom:
            os.makedirs("pictures/" + contact.fn, exist_ok=True)
            with open("pictures/" + contact.fn + "/profile.jpg", "wb") as f:
                f.write(base64.decodebytes(str.encode(contact.custom["PHOTO"][0])))
            contact.photo_path = "pictures/" + contact.fn + "/profile.jpg"
        contact.custom.pop("PHOTO", None)

        # reformat phone numbers to international
        # TODO : distinguish phone numbers in final vcard (hint : "type" ?!)
        clean_tel = []
        for number in contact.tel:
            try:
                number = number["value"]
                number = number.replace("-", "")
                number = phonenumbers.parse(number, region="FR")
                number = phonenumbers.format_number(number, phonenumbers.PhoneNumberFormat.INTERNATIONAL)
                if number not in clean_tel:
                    clean_tel.append(number)
            except phonenumbers.phonenumberutil.NumberParseException:
                continue
        contact.tel = [{"value": x, "type": []} for x in clean_tel]

        # full-name reencoding
        contact.fn = quopri.decodestring(contact.fn).decode()
        contact.custom.pop("FN", None)

        # name list reencoding
        clean_n = []
        for name in contact.n:
            clean = quopri.decodestring(name).decode()
            clean_n.append(clean)
        contact.n = clean_n
        contact.custom.pop("N", None)

        # nickname reencoding
        clean_nickname = []
        for nick in contact.nickname:
            nick = quopri.decodestring(nick).decode()
            clean_n.append(nick)
        contact.nickname = clean_nickname

        # custom field reencoding
        for field in contact.custom:
            for value in contact.custom[field]:
                contact.custom[field] = quopri.decodestring(value).decode()

        if contact.note:
            contact.note = quopri.decodestring(contact.note).decode()

        # rewrite contact as vcard
        vcf_text = contact.to_vcard()
        output.write(vcf_text)
        current_card = ""