# -*- coding: utf-8 -*-

'''

Created on Nov 13, 2012

@author: ymh

'''

import json

from django.http import HttpResponse, HttpResponseBadRequest

import requests

from django.conf import settings

import logging

logger = logging.getLogger(__name__)

def recommended(request):

    keywords_str = request.GET.get('keywords', None)

    if not keywords_str:

        return HttpResponseBadRequest("Error, null keywords")

    keywords = [kw.strip() for kw in keywords_str.split(",")]

    ldt_res = get_ldt_res(keywords)

    logger.debug("LDT results : " + repr(ldt_res) )

    kc_res = get_kc_res(keywords)

    res = mix_results(ldt_res, kc_res)

    return HttpResponse(json.dumps(res), content_type='application/json; charset=utf-8', )

def mix_results(ldt_res, kc_res):

    #TODO : implement mixin of results

    return ldt_res

def get_ldt_res(keywords):    

    recommended_url = settings.LDT_API_URL + "contents/recommended/"

    r = requests.get(recommended_url, params={'keywords':  ",".join(keywords)})

    logger.debug(repr(r))

    #TODO : manage error codes

    return r.json

def get_kc_res(keywords):

    #TODO : implement

    return None