from dateutil.parser import parse
from datetime import datetime
import re
import urlparse
from src.fb import graph
from facebook import GraphAPIError
import json


def fbfeedelement(h):
   art={}
   art["text"]=""
   if h.has_key("story"):
       art["text"]=art["text"]+h["story"]+"<br>"
   if h.has_key("attachments") and len(h["attachments"]["data"])>0:
       for a in h["attachments"]["data"]:
           if a.has_key("media") and a["media"].has_key("image") and a["media"]["image"].has_key("src") and not art.has_key("image"):
               art["image"]=a["media"]["image"]["src"]
           if a.has_key("title"):
               art["title"]=a["title"]
           if a.has_key("type") and a["type"] in ["event"]:
               art["url"]=a["url"]
           if a.has_key("description"):
                art["text"]=art["text"]+a["description"]+"<br>"
            

   if not art.has_key("title") and h.has_key("story"):
        art["title"]=h["story"]
   if h.has_key("message"):
        art["text"]=art["text"]+h["message"]
   art["published"] =parse(h["created_time"])    
   if not art.has_key("url"):
        art["url"]=urlparse.urlunsplit(("http","www.facebook.at",h["id"],"",""))
   return art     
    

def fbfeed(url, raw):
    js = json.loads(raw)
    arts=[]
    u=urlparse.urlparse(url)
    for m in js["data"]:
        aa=fbfeedelement(m)
        if not aa.has_key("title"):
            aa["title"] = u[1]+ " at " + aa["published"].strftime("%Y-%m-%d %H:%M")
        aa["section"]="Facebook: "+u[1]
        arts.append(aa)
    nx=None
    if js.has_key("paging") and js["paging"].has_key("next"):
       un=urlparse.urlparse(js["paging"]["next"])
       nx=urlparse.urlunsplit((u[0],u[1],u[2],un[4],un[3]))
    return {"url": url, "next_page": nx,"articles": arts}