#! /usr/bin/env python
# -*- coding: utf-8 -*-

import urllib2, json, pprint, re
import xml.etree.ElementTree as ET
import subprocess, shlex, urllib
sid = '1234'
useragent = "Mozilla/5.001 (windows; U; NT4.0; en-US; rv:1.0) Gecko/25250101"
endpoint = "http://pzwiki.wdka.nl/mw-mediadesign/api.php?format=json&"



# API MODULES 
def api_request(action, pagename): #get page: content, metadata, images, imageifnp 
    print 'API REQUEST'
    print pagename
    print 'TEST', action.format(pagename)
    url = endpoint + (action.format(pagename))
    print 'API REQUEST', url 
    request = urllib2.urlopen(url)
    jsonp = json.loads(request.read() )
    json_dic= (jsonp.get('query').get('pages'))
#    pprint.pprint( json_dic )
    page_id =  json_dic.keys()[0]
    page_content = json_dic.get(page_id)
    return page_content

def api_page(pageid, query):
    if query == 'content':
        api_response = api_request('action=query&pageids={}&prop=revisions&rvprop=content', pageid)
        response = ((api_response.get('revisions'))[0])['*']
    elif query == 'metadata':
        response = api_request('action=query&pageids={}&prop=info', pageid)
    elif query == 'articleimgs':
        response = api_request('action=query&pageids={}&prop=images', pageid)
    elif query == 'file':
        response = api_request('action=query&titles=File:{}&prop=imageinfo&iiprop=url',pageid)
    elif query == 'imageinfo':
        pagename = pageid # in imageinfo titles are used instead of id 
        print 'IMAGEINFO', pagename
        response = api_request("action=query&titles=File:{}&prop=imageinfo&iiprop=url&iiurlwidth=500", pagename)  # iiurlwidht dermines with of thumbnail
    return response

##############################
# CATEGORIES AND PAGES
################ 
# * MUST BE REPLACE BY SMARTER CODE (USING PY MD LIB)
##############################
def api_pagecategories(pageid):
    '''Find all the categories, and their parent category of a page '''
    query = 'action=query&pageids={}&prop=categories'.format(pageid)
    url = endpoint + query
    request = urllib2.urlopen(url)
    jsonp = json.loads(request.read())    
    json_dic = jsonp['query']['pages']
    page_id =  json_dic.keys()[0]
    page_categories = json_dic[page_id][u'categories']
    all_cats = [ entry[u'title'].encode('utf-8') for entry in page_categories ] #.replace('Category:', '')
    return all_cats


def api_pagesincategories(category, year):
    # Find all pages incategory and add to allworks dictionary
    category =  category.replace(' ', '_')
    apiCatMembers = endpoint + 'action=query&list=categorymembers&cmlimit=1000&cmtitle=Category:{}'.format(category)    
    request = urllib2.urlopen(apiCatMembers)
    jsonp = json.loads(request.read())    
    graduationWorkMembers = jsonp['query']['categorymembers']
    intersectCatMembers = []
    if year:          
        for member in graduationWorkMembers:
            page_cats = api_pagecategories(member['pageid'])
            if ('Category:{}'.format(year)) in page_cats:
                print year, 'in', page_cats
                intersectCatMembers.append(member)# add member to intersectCatMembers
    else:
        intersectCatMembers =  graduation_work_members
    return intersectCatMembers
    # for page in  intersectCatMembers: 
    #     title = ((page['title']).encode('utf-8') ).replace(" ", "_") #snakecase for page titles
    #     pageid = page['pageid']
    #     article = api_page(pageid, 'content')
    #     #        print title
    #     #        pprint.pprint(article)
    #     work = parse_work_page(title, article)
    #     if work:
    #         allworks[pageid] = work #dictionary(allworks) entry
    #         print pprint.pprint( work )
    #         # Create work page                    
    #     else:
    #         print 'WORK DOES NOT CONTAIN REQUIRED CONTENT'
    #     print '-------------'
    #     print 




def api_file_url(filename): # get full urls
    page_content_dict = api_page(filename, 'file')   
    if 'imageinfo' in page_content_dict.keys():
        imgurl = ((page_content_dict.get('imageinfo'))[0].get('url'))
        return imgurl
    else:
        return None
   
def api_thumb_url(filename):
    print '''get thumbnail url of image'''
    thumburl = api_page(filename, 'imageinfo')
    thumburl = ((thumburl.get('imageinfo'))[0].get('thumburl'))
    print thumburl
    return thumburl
    
# http://pzwiki.wdka.nl/mw-mediadesign/api.php?format=json&action=query&titles=File:2x2 905.jpg&prop=imageinfo&iiprop=url&iiurlwidth=300
# http://pzwiki.wdka.nl/mw-mediadesign/api.php?format=json&action=query&pageids=10603&prop=revisions&rvprop=content
# http://pzwiki.wdka.nl/mw-mediadesign/api.php?format=json&action=query&titles=Graduation_Website_Braindump&prop=revisions&rvprop=content

# PROCESSING MODULES

def write_html_file(html_tree, filename):
    doctype = "<!DOCTYPE HTML>"
    html = doctype + ET.tostring(html_tree,  encoding='utf-8', method='html')
    edited = open(filename, 'w') #write
    edited.write(html)
    edited.close()

# mw article modules

def parse_work_page(title, content):
#    content = content.encode('utf-8')
    if re.match('\{\{\Graduation work', content):
        work_dict = {}
        work_dict['Title']=title
        template, extra = (re.findall('\{\{Graduation work\n(.*?)\}\}(.*)', content, re.DOTALL))[0]
        keyval = re.findall('\|(.*?)\=(.*?\n)', template, re.DOTALL)    # template's key/value pair
        if extra: #append extra
            extra = ('Extra', extra)
            keyval.append(extra) #?

#        checkkeys = [keyval[i] for i in range(len(keyval)) if keyval[i][0] in mainkeys and len(keyval[i][1])>3] #list mainkeys present, w/ values, in tuples [(key, val),(key, val)...]
 #       if len(checkkeys) == 3 : # checkkeys contains all mainkeys and values 
            for pair in keyval:
                key = pair[0]
                val = pair[1]
                val = val.replace('\n','')            
                if 'Creator' in key:
                    val = val.replace(', ', '')
                elif 'Thumbnail' in key:
                    thumburl = api_thumb_url(val)
                    work_dict['Thumbnail_url']=thumburl
                    print 'THUMB:', thumburl
                work_dict[key]=val
            return work_dict, extra

        

# Alternative to parse_work_page
def parse_work(title, content):
    workdict = {'Title':title, 'Creator':'', 'Date':'', 'Website':'', 'Thumbnail':'', 'Bio':'', 'Description':'', 'Extra':''}
    
    if re.match('\{\{\Graduation work', content):
        template, extra = (re.findall('\{\{Graduation work\n(.*?)\}\}(.*)', content, re.DOTALL))[0]
        if extra:
            workdict['Extra'] = extra.encode('utf-8')
        # template's key/value pair
        # Note:Extra value is NOT CAPTURED by this regex
        keyval = re.findall('\|(.*?)\=(.*?\n)', template, re.DOTALL) 
        for pair in keyval:
            key = pair[0]
            val = (pair[1]).replace('\n', '')
            if 'Creator' in key:
                val = val.replace(', ', '')
            elif 'Thumbnail' in key:
                val = api_thumb_url(val)
            elif 'Website' in key:
                val = urllib.unquote(val)
                
            workdict[key]=val.encode('utf-8')
#    pprint.pprint(workdict)
    return workdict

    
# Conversion Modules
def pandoc2html(mw_content):
    '''convert individual mw sections to html'''
    mw_content = mw_content.encode('utf-8')
    # convert from mw to html
    args_echo =shlex.split( ('echo "{}"'.format(mw_content)) )
    args_pandoc = shlex.split( 'pandoc -f mediawiki -t html5' )
    p1 = subprocess.Popen(args_echo, stdout=subprocess.PIPE)
    p2 = subprocess.Popen(args_pandoc, stdin=p1.stdout, stdout=subprocess.PIPE)
    html = (p2.communicate())[0]
    return html
    
def img_fullurl(parent):
    imgs = parent.findall('.//img')
    for img in imgs:
        src = img.get('src')
        fullurl =  api_thumb_url(src)
        if fullurl != None:            
            img.set('src', fullurl)

        
gallery_exp=re.compile('<gallery>(.*?)</gallery>', re.S)
imgfile_exp=re.compile('(File:(.*?)\.(gif|jpg|jpeg|png))')

def replace_gallery(content):
    content = re.sub(imgfile_exp, '[[\g<1>]]', content) #add [[ ]] to File:.*?
    content = re.sub(gallery_exp, '\g<1>', content) #remove gallery wrapper
    return content

video_exp=re.compile('\{\{(.*?)\|(.*?)\}\}')
vimeo_exp=re.compile('\{\{vimeo\|(.*?)\}\}')
youtube_exp=re.compile('\{\{youtube\|(.*?)\}\}')

def replace_video(content):
    content = re.sub(vimeo_exp,"<iframe src='https://player.vimeo.com/video/\g<1>' width='600px' height='450px'> </iframe>", content)
    content = re.sub(youtube_exp, "<iframe src='https://www.youtube.com/embed/\g<1>' width='600px' height='450px'> </iframe>", content)
    return content