import json
import os
from os.path import exists
from loguru import logger
from pyfzf.pyfzf import FzfPrompt

fzf = FzfPrompt()

conf_file = 'config.json'

default_conf = {
    'instance': 'fw.ponychord.rocks',
    'public_list_instances_extended':
        {
            "open.audio": None,
            "audio.liberta.vip": None,
            "dance.with.tewi.and.reisen": None,
            "tanukitunes.com": None,
            "funkwhale.juniorjpdj.pl": None,
            "audio.securetown.in.ua": None,
            "funkwhale.thurk.org": None,
            "buzzworkers.com": None,
            "soundship.de": None,
            "funkwhale.kameha.click": None,
            "music.chosto.me": None,
            "zik.goe.land": None,
            "music.humanoids.be": None,
            "music.hempton.us": None,
            "mizik.o-k-i.net": None,
            "klh.radiolivre.org": None,
            "hudba.feildel.fr": None,
            "funk.deko.cloud": None,
            "audio.graz.social": None,
            "funkwhale.desmu.fr": None,
            "listen.knsm.cc": None,
            "funkwhale.gegeweb.eu": None,
        },
    'automatic_fetch_new_instances': False,
    'enable_server_transcoding': False,
    'external_transcoder_http_proxy_path': "",
    'share_to_fediverse_token': "",
    'share_to_fediverse_instance': "",
    'prefetch_playlist': True,
    'enable_persistent_cache': False,
    'mpv_volume': 100,
    'show_like_button': True,
    'show_artist_name_in_albums': False,
    'termux_handle_track_switch_by_volume': False
}


def set_defaults(corrected_config=None):
    conf_rewrite = default_conf
    if corrected_config:
        conf_rewrite = corrected_config
    descriptor = os.open(
        path=conf_file,
        flags=(
            os.O_WRONLY  # access mode: write only
            | os.O_CREAT  # create if not exists
            | os.O_TRUNC  # truncate the file to zero
        ),
        mode=0o600)
    with open(descriptor, 'wt') as f:
        f.write(json.dumps(conf_rewrite, indent=4))


def check_config():
    '''Check config and remove or add keys if not found in default config'''
    with open(conf_file, 'rt') as f:
        loaded_config = json.loads(f.read())
    correct_conf = {}
    for k, v in loaded_config.items():
        if k in default_conf.keys():
            correct_conf[k] = v
        else:
            logger.warning(f'{k} from config will be removed. Value: {v}')
    for k, v in default_conf.items():
        if k not in correct_conf.keys():
            correct_conf[k] = v
            logger.warning(f'{k} added in config. Value: {v}')
    set_defaults(correct_conf)
    return correct_conf


if not exists(conf_file):
    set_defaults()
else:
    check_config()


def get_config(key):
    '''return value from config by key'''
    with open(conf_file, 'rt') as f:
        loaded_config = json.loads(f.read())
        return loaded_config.get(key)


def set_config(key, value):
    '''set value new value config by key'''
    read_conf = check_config()
    with open(conf_file, 'wt') as f:
        read_conf[key] = value
        f.write(json.dumps(read_conf, indent=4))