import lxml.etree       #used by imageFunc
import re               #used by roll_dice
import datetime         #used by helloFunc
import json             #used by spellFunc
import random           #used by imageFunc
import urllib           #used by imageFunc
import imdb             #used by movieFunc

from .roll import dice
from .lookup import lookupFuncs
from .other import movie, generators
from .swfuncs import swchar, swroll

def roll_dice(author : str, rollStr : str = "1d20"):
    print("Rolling "+str(rollStr))
    if rollStr == '0/0':  # easter eggs
        return("What do you expect me to do, destroy the universe?")

    adv = 0
    if re.search('(^|\s+)(adv|dis)(\s+|$)', rollStr) is not None:
        adv = 1 if re.search('(^|\s+)adv(\s+|$)', rollStr) is not None else -1
        rollStr = re.sub('(adv|dis)(\s+|$)', '', rollSt
    res = dice.roll(rollStr, adv=adv)
    out = res.result
    outStr = author + '  :game_die:\n' + out
    if len(outStr) > 1999:
        outputs = author + '  :game_die:\n[Output truncated due to length]\n**Result:** ' + str(res.plain)
    else:
        outputs = outStr
    print("Successfully ran !roll")
    print("")
    return(outputs)

no_caps_list = ["of","the"]

def cap(s):
    word_number = 0
    lst = s.split()
    res = ''
    for word in lst:
        word_number += 1
        if word not in no_caps_list or word_number == 1:
            word = word.capitalize()
        res += word+" "
    res = res[:-1]
    return res

def time_in_range(start, end, x):
    """Return true if x is in the range [start, end]"""
    if start <= end:
        return start <= x <= end
    else:
        return start <= x or x <= end

def helloFunc(author):
    print("")
    now = datetime.datetime.now()
    if time_in_range(now.replace(hour=5, minute=0, second=0, microsecond=0),now.replace(hour=10, minute=0, second=0, microsecond=0), now):
        return("Good morning, "+str(author))
    elif time_in_range(now.replace(hour=10, minute=0, second=0, microsecond=0),now.replace(hour=13, minute=0, second=0, microsecond=0), now):
        return("Good day, "+str(author))
    elif time_in_range(now.replace(hour=13, minute=0, second=0, microsecond=0),now.replace(hour=18, minute=0, second=0, microsecond=0), now):
        return("Good afternoon, "+str(author))
    elif time_in_range(now.replace(hour=18, minute=0, second=0, microsecond=0),now.replace(hour=22, minute=0, second=0, microsecond=0), now):
        return("Good evening, "+str(author))
    elif time_in_range(now.replace(hour=22, minute=0, second=0, microsecond=0),now.replace(hour=23, minute=59, second=59, microsecond=0), now):
        return("Good night, "+str(author))
    else:
        return("Why hello, "+str(author))

def imageFunc():
    cams = ("one","two","three","four")
    cam = random.choice(cams)
    if cam == "one":
        a = str(random.randint(0 ,9))
        b = str(random.randint(0,9))
        c = str(random.randint(0,9))
        d = str(random.randint(0,9))
        search = ("img_"+a+b+c+d)
    elif cam == "two":
        a = str(random.randint(2012,2016))
        b = str(random.randint(1,12)).zfill(2)
        c = str(random.randint(1,29)).zfill(2)
        search = ("IMG_"+a+b+c)
    elif cam == "three":
        a = str(random.randint(1,500)).zfill(4)
        search = ("IMAG_"+a)
    elif cam == "four":
        a = str(random.randint(0,9))
        b = str(random.randint(0,9))
        c = str(random.randint(0,9))
        d = str(random.randint(0,9))
        search = ("DSC_"+a+b+c+d)
    page = urllib.request.urlopen("https://www.bing.com/images/search?q="+search+"&safesearch=off")
    read = page.read()
    tree = lxml.etree.HTML(read)
    images = tree.xpath('//a[@class = "thumb"]/@href')
    number = random.randint(1,len(images))-1
    image = images[number]
    print("Successfully returned an image")
    print("")
    return(image)