from tinydb import TinyDB, Query
from bs4 import BeautifulSoup
import requests
from simple_term_menu import TerminalMenu
import os
import sys
import subprocess
from operator import itemgetter
from urllib.parse import unquote
from tinydb.operations import set

def get_files(url: str) -> []:
    if (url in ["/../", "../"]):
        return ([])
    response = requests.get(url)
    # print("connection:", response.reason)
    if (response.status_code != 200):
        exit
    soup = BeautifulSoup(response.text, 'html.parser')
    files = []
    for element in soup.findAll("a"):
        file = {}
        file.update({"name": unquote(element['href'])})
        file.update({"link": element["href"]})
        files.append(file)
    return (files)

def get_uri(url: str) -> []:
    if (url in ["/../", "../"]):
        return ([])
    response = requests.get(url)
    # print("connection:", response.reason)
    if (response.status_code != 200):
        exit
    soup = BeautifulSoup(response.text, 'html.parser')
    return(soup.find("h1").text[9:])

def get(files: [], key: str):
    names = []
    for file in files:
        names.append(file.get(key))
    return (names)

def open_vlc(url: str) -> None:
    with open(os.devnull, 'wb') as devnull:
        subprocess.check_call(['vlc', url], stdout=devnull, stderr=subprocess.STDOUT)

def preview(filename: str) -> str:
    if (not filename.endswith("/")):
        return (None)
    files = get_files(url + filename)
    return ("\n".join(get(files, "name")))

def files_navigator():
    global url

    path = cookies_table.get(query.id == "0").get("last_path")
    if (path):
        url = url + path
    else:
        url = url + "/"
    while True:
        cookies_table.update(set("last_path", get_uri(url)), query.id == "0")
        files = get_files(url)
        terminal_menu = TerminalMenu(get(files, "name"), preview_command=preview, preview_size=0.3, show_search_hint=True, title=get_uri(url))
        file_choose = terminal_menu.show()
        if (file_choose == None):
            sys.exit(0)
        elif (file_choose == 0 and get_uri(url) == "/"):
            return 
        file = get(files, "link")[file_choose]
        if (not file.endswith("/")):
            open_vlc(url + file)
        else:
            url = url + file

def add_site():
    print("add a site:")
    site = {}
    site.update({"url without protocol (ip:port)": input("url:")})
    site.update({"user": input("user(leave blank):")})
    site.update({"password": input("password(leave blank):")})
    site.update({"id": len(sites_table.all())})
    name = input("name[url] :")
    if (name == ""):
        name = site.get("url")
    site.update({"name": name})
    sites_table.insert(site)

def set_url(site):
    global url

    
    cookies_table.update(set("last_site", site.get("id")), query.id == "0")
    if (site.get("user") and site.get("password")):
        url = f"http://{site.get('user')}:{site.get('password')}@{site.get('url')}/"
    else:
        url = f"http://{site.get('url')}/";

def sites_navigator():
    if (len(sites_table.all()) == 0):
        add_site()
    last_site_id = cookies_table.get(query.id == "0").get("last_site")
    last_site = sites_table.get(query.id == last_site_id)
    if (last_site != None):
        set_url(last_site)
        files_navigator()
    while True:
        terminal_menu = TerminalMenu(get(sites_table.all(), "name") + ["", "add", "edit", "remove"], skip_empty_entries=True, show_search_hint=True)
        choose = terminal_menu.show()
        if (choose == len(sites_table.all()) + 1):
            add_site();
        elif (choose == len(sites_table.all()) + 2):
            pass
        elif (choose == len(sites_table.all()) + 3):
            pass
        else:
            set_url(sites_table.all()[choose])
            files_navigator()

db = TinyDB("./database.json", indent=4)
query = Query()

sites_table = db.table("sites")
cookies_table = db.table("cookies")
if (len(cookies_table.all()) == 0):
    cookies_table.insert({"last_path": "", "last_site": "", "id": "0"})    
sites_navigator();