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import urllib
import json
import os
import hashlib
import datetime
import time
import sys

from urllib import urlencode

def getSourceForgeStats(download, start_date, end_date):
    print download
    url = download + "/stats/json?start_date=" + start_date + "&" "end_date=" + end_date

    attempts = 0

    while attempts < 3:
        try:
            conn = urllib.urlopen(url)
            data = conn.read()

            return data

        except:
            attempts += 1
            print "error " + str(attempts)

    return ""



# extracts the language code from the URL
# this logic is very sensitive to the exact naming conventions
def getLanguage(url):

    s = str(url)

    if s.endswith('.exe'):
        s = s[:-4]
    elif s.endswith('.dmg'):
        s = s[:-4]
    elif s.endswith('.tar.gz'):
        s = s[:-7]

    return s[s.rfind("_")+1:len(s)]



# dictionary of language code to country_dict (dictionary of country name to count)
master_dict = {}

def mergeCountries(lang, countries):
    country_dict = {}

    if lang in master_dict:
        country_dict = master_dict[lang]
    else:
        master_dict[lang] = country_dict

    for country_tuple in countries:

        country_name = country_tuple[0]
        country_count = country_tuple[1]

        if country_name in country_dict:
            country_dict[country_name] = country_dict[country_name] + country_count
        else:
            country_dict[country_name] = country_count





if len(sys.argv) == 0:
    print "syntax: python countries.py <urls.lst> <start-date> <end-date>"
    print "where <urls.lst> is a list of files URLs to gather stats on, and <start-date> and <end-date> are in YYYY-MM-DD format."

downloads = [line.strip() for line in open(sys.argv[1])]

for download in downloads :

    data = json.loads(getSourceForgeStats(download, sys.argv[2], sys.argv[3]))

    lang = getLanguage(download)
    #lang = "foo"

    countries = data["countries"]

    mergeCountries(lang, countries)

for lang in master_dict:
    print "===" + lang + "==="
    country_dict = master_dict[lang]
    for country in sorted(country_dict,key=lambda x: country_dict[x], reverse=True):
        out_str = country + "," + str(country_dict[country])
        print out_str.encode("utf-8")
    print
    print