#!/usr/bin/env python3
import sys
import requests
import csv
from io import StringIO
import urllib3
from hashlib import md5
import os

from passwords import *

# it's fine, ssl certs are for losers anyway
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

fieldnames = "CardNumber,CardFormat,PinRequired,PinCode,ExtendedAccess,ExpiryDate,Forename,Initial,Surname,Email,Phone,Custom1,Custom2,Schedule1,Schedule2,Schedule3,Schedule4,Schedule5,Schedule6,Schedule7,Schedule8".split(",")

# mapping of member levels to schedules
memberLevels = {"CMS Staff": "7x24",
                "CMS Weekends Only": "Weekends Only",
                "CMS Weekdays Only": "Weekdays Only",
                "CMS Unlimited": "Unlimited",
                "CMS Nights & Weekends": "Nights and Weekends"}

# door access permissions to controller IP addresses
doors = {
    "Rental Studio": ["172.18.51.11"],
    "Storage Closet": ["172.18.51.12"],
    "Metal Shop": ["172.18.51.13"],
    "Wood Shop": ["172.18.51.14", "172.18.51.15"]
}


def getMembershipworksData():
    """ Pull the members csv from the membershipworks api """
    BASE_URL = "https://api.membershipworks.com/v1/"

    # login
    r = requests.post(BASE_URL + 'usr',
                      data={"_st": "all",
                            "eml": MEMBERSHIPWORKS_USERNAME,
                            "org": "10000",
                            "pwd": MEMBERSHIPWORKS_PASSWORD})
    if r.status_code != 200 or 'SF' not in r.json():
        print("MembershipWorks Login Error: ", r.status_code, r.reason)
        print(r.text)
        sys.exit(1)
    SFtoken = r.json()['SF']

    # get list of member/staff IDs
    r = requests.get(BASE_URL + "ylp",
                     params={"SF": SFtoken,
                             "lbl": "5ae37979f033bfe8534f8799,5771675edcdf126302a2f6b9", # members and staff
                             "org": "15475", # unknown
                             "var": "_id,nam,ctc"})
    if r.status_code != 200 or 'usr' not in r.json():
        print("MembershipWorks User Listing Error: ", r.status_code, r.reason)
        print(r.text)
        sys.exit(1)
    ids = [user['_id'] for user in r.json()['usr']]

    # get members CSV
    # TODO: maybe can just use previous get instead? would return JSON
    r = requests.post(BASE_URL + "csv",
                      params={"SF": SFtoken},
                      data={"_rt": "946702800", # unknown
                            "mux": "", # unknown
                            "tid": ",".join(ids), # ids of members to get
                            "var": "lvl,xws,xms,xsc,xrs,xfd,xac,phn,eml,lbl,xcf,nam"}) # which columns to get
    if r.status_code != 200:
        print("MembershipWorks CSV Generation Error: ", r.status_code, r.reason)
        print(r.text)
        sys.exit(1)

    newHash = md5(bytes(r.text, 'utf8')).hexdigest()
    if os.path.exists('/tmp/doorUpdaterLastHash'):
        with open('/tmp/doorUpdaterLastHash', 'r') as f:
            if newHash == f.read():
                print("hashes are the same, not updating")
                sys.exit(0)
    with open('/tmp/doorUpdaterLastHash', 'w') as f:
        f.write(newHash)

    return r.text

def makeMember(member, doorAuth):
    """Create an output CSV row for the member"""
    if member["Access Card Number"] == "":
        #print(member["First Name"], member["Last Name"], " has no card number, ignoring")
        return

    out = {"Forename": member["First Name"],
           "Surname": member["Last Name"],
           "Initial": "",
           "CardNumber": member["Access Card Number"],
           "CardFormat": "A901146A-" + member["Access Card Facility Code"],
           "PinRequired": "0",
           "ExtendedAccess": "0",
           "ExpiryDate": "",
           "Email": member["Email"],
           "Phone": member["Phone"]}

    if member[doorAuth] == "Y" \
       and not member["Account on Hold"] == "Account on Hold":
        memberLevel = [v for k, v in memberLevels.items() if member[k] == k]
        if len(memberLevel) == 1:
            out["Schedule1"] = memberLevel[0]
        else:
            print(member["First Name"], member["Last Name"], "has no/too many member levels!")

    return out

def doRequest(ip, params=None, files=None):
    """Send a request to the door control import script"""
    r = requests.post(
        'https://' + ip + '/cgi-bin/import.cgi',
        params=params,
        files=files,
        auth=requests.auth.HTTPDigestAuth(DOOR_USERNAME, DOOR_PASSWORD),
        timeout=10,
        verify=False) # ignore insecure SSL
    if r.status_code != 200:
        print("Door Updating Error: ", r.status_code, r.reason)
        print(r.text)
        sys.exit(1)

def updateDoor(doorIP, csv):
    """Do the update import procedure on a door control"""

    doRequest(doorIP, {"task": "importInit"})
    doRequest(doorIP,
              {"task": "importCardsPeople", "name": "cardspeopleschedule.csv"},
              {"importCardsPeopleButton": ("cardspeopleschedule.csv", csv, 'text/csv')})
    doRequest(doorIP, {"task": "importDone"})

def makeDoor(doorName, doorIPs, members):
    """Create a CSV for the given door"""
    outString = StringIO()
    writer = csv.DictWriter(outString, fieldnames)
    writer.writeheader()
    for member in members:
        member = makeMember(member, "Access " + doorName + "?")
        if member is not None:
            writer.writerow(member)

    print(outString.getvalue())
    for doorIP in doorIPs:
        outString.seek(0)
        updateDoor(doorIP, outString)
        pass

def main():
    data = getMembershipworksData()
    reader = csv.DictReader(StringIO(data))
    members = list(reader)

    for doorName, doorIP in doors.items():
        makeDoor(doorName, doorIP, members)

if __name__ == '__main__':
    main()