from __future__ import print_function
from argparse import ArgumentParser
import json, sys
from urllib import urlencode
from urllib2 import urlopen, HTTPError, URLError
import requests


LIMIT_BYTES = 100*1000

def main(args):
    p = ArgumentParser("calls the setHTML API function for the given padid")
    p.add_argument("padid", help="the padid")
    p.add_argument("--html", default=None, help="html, default: read from stdin")
    p.add_argument("--padinfo", default=".etherdump/settings.json", help="settings, default: .etherdump/settings.json")
    p.add_argument("--showurl", default=False, action="store_true")
    # p.add_argument("--format", default="text", help="output format, can be: text, json; default: text")
    p.add_argument("--create", default=False, action="store_true", help="flag to create pad if necessary")
    p.add_argument("--limit", default=False, action="store_true", help="limit text to 100k (etherpad limit)")
    args = p.parse_args(args)

    with open(args.padinfo) as f:
        info = json.load(f)
    apiurl = info.get("apiurl")
    # apiurl = "{0[protocol]}://{0[hostname]}:{0[port]}{0[apiurl]}{0[apiversion]}/".format(info)
#    data = {}
#    data['apikey'] = info['apikey']
#    data['padID'] = args.padid # is utf-8 encoded

    createPad = False
    if args.create:
        # check if it's in fact necessary
        requesturl = apiurl+'getRevisionsCount?'+urlencode({'apikey': info['apikey'], 'padID': args.padid})
        results = json.load(urlopen(requesturl))
        print (json.dumps(results, indent=2), file=sys.stderr)
        if results['code'] != 0:
            createPad = True

    if args.html:
        html = args.html
    else:
        html = sys.stdin.read()

    params = {}
    params['apikey'] = info['apikey']
    params['padID'] = args.padid

    if createPad:
        requesturl = apiurl+'createPad'
        if args.showurl:
            print (requesturl)
        results = requests.post(requesturl, params=params, data={'text': ''}) # json.load(urlopen(requesturl))
        results = json.loads(results.text)
        print (json.dumps(results, indent=2))

    if len(html) > LIMIT_BYTES and args.limit:
        print ("limiting", len(text), LIMIT_BYTES, file=sys.stderr)
        html = html[:LIMIT_BYTES]

    requesturl = apiurl+'setHTML'
    if args.showurl:
        print (requesturl)
    # params['html'] = html
    results = requests.post(requesturl, params={'apikey': info['apikey']}, data={'apikey': info['apikey'], 'padID': args.padid, 'html': html}) # json.load(urlopen(requesturl))
    results = json.loads(results.text)
    print (json.dumps(results, indent=2))