#! venv/bin/python

import os
import sys
import pprint
import json
from flask import Flask,render_template,request
from argparse import ArgumentParser
import psycopg2

app = Flask(__name__)

class Convert_jinja_object:

    def __init__(self):
        self.myvar = 'sample_var'

    def bits_to_years(self, x):
        year_map = [ "92Q2", "95Q0", "96Q0", "96Q1", "97Q1", "97Q3", "98Q1", "98Q3", "99Q1", "99Q3", "00Q1", "00Q3", "01Q1", "01Q2", "01Q3", "01Q4", "02Q1", "02Q3", "03Q1", "03Q3", "04Q1", "04Q3", "05Q1", "05Q3", "06Q1", "06Q3", "07Q1", "07Q3", "08Q1", "08Q3", "09Q1", "09Q3", "10Q1", "10Q3", "11Q1", "11Q3", "12Q1", "12Q3", "13Q1", "13Q3", "14Q1", "14Q3", "15Q1", "15Q3", "16Q1", "16Q3", "17Q1", "17Q3", "18Q1", "18Q3", "19Q1", "19Q3", "20Q1", "20Q3" ]
        if x == 0:
            return '/'
        years = ''
        index = 0
        while x > 0:
            if index > 0:
                years = years + ','
            start_off = (x&-x).bit_length()-1
            x = ~(x >> start_off)
            end_off = (x&-x).bit_length()-1
            x = ~(x >> (end_off + 1))
            years = years + (year_map[index + start_off])
            if end_off > 1:
                years = years + '-' + year_map[index + start_off + end_off - 1]
            index = index + start_off + end_off + 1
        return years

@app.route("/", methods=['GET', 'POST'])
def root():
    content = request.json

    query = "SELECT DISTINCT ON (id) presence_flag, reverse_flag, biz_flag, zip, nachname, vorname, zusaetze, strasse, hausnummer, verweise, ort, vorwahl, rufnummer, web, email, coords FROM Telefonbuch "
    where = ""
    params = []
    anyjoin = ""

    for i in range(1,5):
        search = request.form.get("search_{0}_string".format(i))
        if not search: continue
        column = request.form.get("search_{0}_column".format(i))
        operator = request.form.get("search_{0}_operator".format(i))
        isany = request.form.get("search_{0}_any".format(i))

        if not column in [ 'zip', 'nachname', 'vorname', 'zusaetze', 'strasse', 'hausnummer', 'verweise', 'ort', 'vorwahl', 'rufnummer', 'web', 'email', 'coords' ]: continue

        query = query + "INNER JOIN table_{0} ON Telefonbuch.id = table_{0}.telefonbuch_id ".format(column)
        if len(where):
            where = where + "AND "
        else:
            where = "WHERE "
        where = where + "table_{0}.value {1} %s ".format(column, {'equals': '=', 'equalsnot': '<>', 'contains': 'ILIKE', 'containsnot': 'NOT ILIKE', 'beginswith': 'ILIKE'}[operator])
        if not isany:
            if len(anyjoin) == 0:
                anyjoin = "table_" + column
            else:
                where = where + "AND " + anyjoin + ".offs = table_" + column + ".offs "
        if operator in ['contains','containsnot']:
            search = "%" + search + "%"
        if operator in ['beginswith']:
            search = search + "%"
        params.append(search)

    if len(where) > 0:
        conn = psycopg2.connect(database="erdgeist", user="postgres", password="", host="127.0.0.1")
        cur = conn.cursor()
        print (query + where + ' LIMIT 10000')
        pprint.pprint( params )

        cur.execute(query + where + ' LIMIT 10000', params)
        rows = cur.fetchall()
    else:
        rows = [[0,0,0,{},{},{},{},{},{},{},{},{},{}]]

    return render_template('index.html', rows=rows, request=request, convert=Convert_jinja_object())

if __name__ == "__main__":
    parser = ArgumentParser(description="AVON")
    parser.add_argument("-H", "--host", help="Hostname of the Flask app " + "[default %s]" % "127.0.0.1", default="127.0.0.1")
    parser.add_argument("-P", "--port", help="Port for the Flask app " + "[default %s]" % "5000", default="5000")
    args = parser.parse_args()

    app.run(host=args.host, port=int(args.port))