import os, json, sys, urllib
from mwclient import Site
from pprint import pprint
from jinja2 import Template
from functions import unpack_response, clean_dir, remove_nonwords
import html5lib
from functions import Colors
import argparse
from xml.etree import ElementTree as ET
from urllib.parse import quote as urlquote, unquote as urlunquote


p = argparse.ArgumentParser(description="Dump wiki files to html",
                            formatter_class=argparse.ArgumentDefaultsHelpFormatter)
p.add_argument("--host",  metavar='', default="hub.xpub.nl/sandbox", help='wiki host')
p.add_argument("--path", metavar='', default="/itchwiki/", help="Wiki path. Should end with /")
p.add_argument("--output", default="/var/www/html/archive", help="Output path for pages")
p.add_argument("--one", default=False, action="store_true", help="Output one page from each category only")

args = p.parse_args()

# site and login

site = Site(host=args.host, path=args.path)

with open('login.txt', 'r') as login:  # read login user & pwd
    loginlines = login.read()
    user, pwd = loginlines.split('\n')
    site.login(username=user, password=pwd)  # login to wiki

# read template files



SLASH = "\u2044"

def filenameforpage(p):
    f = p.name.replace(' ','_').replace('/', SLASH) + '.html'
    return f

def filenameforlink(href):
    href = urlunquote(href)
    if href.startswith("/sandbox/itchwiki/index.php/"):
        href = href[len("/sandbox/itchwiki/index.php/"):]
        href = href.replace(' ','_').replace('/', SLASH) + '.html'
    href = urlquote(href)
    return href

def rewritelinks (html):
    t = html5lib.parseFragment(html, treebuilder = "etree", namespaceHTMLElements = False)
    for a in t.findall(".//*[@href]"):
        linkclass = a.attrib.get("class", "")
        href = a.attrib.get("href")
        if "external" in linkclass:
            # leave external links alone
            continue
        # print ("LINK", href)
        if href.startswith("/sandbox/itchwiki/index.php/"):
            new_href = filenameforlink(href)
            a.attrib['href'] = new_href
    html = ET.tostring(t, method="html", encoding="unicode")
    return html

publish=site.Categories['Publish']
for cat in publish.members():
    if cat.namespace != 14:
        continue 
    print('dumping category {}'.format(cat.page_title))
    # title=site.Categories['Title']
    try:
        with open('templates/{}.html'.format(cat.page_title.lower())) as templatefile:
            template = Template(templatefile.read())
    except FileNotFoundError:
        with open('templates/default.html') as templatefile:
            template = Template(templatefile.read())        
    for p in cat.members():
        print(p)
        htmlsrc = site.parse(page=p.name)['text']['*']
        htmlsrc = rewritelinks(htmlsrc)
        html = template.render(page=p, body=htmlsrc)
        with open(os.path.join(args.output, filenameforpage(p)), 'w') as f:
            print(html, file=f)
        if args.one:
            break