import logging

from homeassistant.components.frontend import add_extra_js_url
from homeassistant.components.http.view import HomeAssistantView

import json
from os import walk, path

LOGGER = logging.getLogger(__name__)

DOMAIN = "fontawesome"

DATA_EXTRA_MODULE_URL = 'frontend_extra_module_url'
LOADER_URL = f'/{DOMAIN}/main.js'
LOADER_PATH = f'custom_components/{DOMAIN}/main.js'
ICONS_URL = f'/{DOMAIN}/icons'
ICONLIST_URL = f'/{DOMAIN}/list'
ICONS_PATH = f'custom_components/{DOMAIN}/data'
CUSTOM_ICONS_URL = f'/{DOMAIN}/icons/pro'
CUSTOM_ICONS_PATH = 'custom_icons/'


class ListingView(HomeAssistantView):

    requires_auth = False

    def __init__(self, url, iconpath):
        self.url = url
        self.iconpath = iconpath
        self.name = "Icon Listing"

    async def get(self, request):
        icons = []
        for (dirpath, dirnames, filenames) in walk(self.iconpath):
            icons.extend([{"name": path.join(dirpath[len(self.iconpath):], fn[:-4])} for fn in filenames if fn.endswith(".svg")])
        return json.dumps(icons)


async def async_setup(hass, config):
    hass.http.register_static_path(
            LOADER_URL,
            hass.config.path(LOADER_PATH),
            True
        )
    add_extra_js_url(hass, LOADER_URL)

    for iset in ["brands", "regular", "solid"]:
        hass.http.register_static_path(
                ICONS_URL + "/" + iset,
                hass.config.path(ICONS_PATH + "/" + iset),
                True
            )
        hass.http.register_view(
                ListingView(
                    ICONLIST_URL + "/" + iset,
                    hass.config.path(ICONS_PATH + "/" + iset)
                )
            )
    hass.http.register_static_path(
            CUSTOM_ICONS_URL,
            hass.config.path(CUSTOM_ICONS_PATH),
            True
        )
    hass.http.register_view(
            ListingView(
                ICONLIST_URL + "/pro",
                hass.config.path(CUSTOM_ICONS_PATH)
            )
        )

    return True


async def async_setup_entry(hass, entry):
    return True


async def async_remove_entry(hass, entry):
    return True