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

from __future__ import (unicode_literals, division, absolute_import, print_function)
store_version = 4  # Needed for dynamic plugin loading

__license__ = 'GPL 3'
__copyright__ = '2011, John Schember <john@nachtimwald.com>'
__docformat__ = 'restructuredtext en'

import random
import re
import urllib2
from contextlib import closing

from lxml import html

from PyQt5.Qt import QUrl

from calibre import browser, url_slash_cleaner
from calibre.gui2 import open_url
from calibre.gui2.store import StorePlugin
from calibre.gui2.store.basic_config import BasicStoreConfig
from calibre.gui2.store.search_result import SearchResult
from calibre.gui2.store.web_store_dialog import WebStoreDialog


def search(query, max_results=10, timeout=60):
    url = 'https://www.smashwords.com/books/search?query=' + urllib2.quote(query)

    br = browser()

    counter = max_results
    with closing(br.open(url, timeout=timeout)) as f:
        doc = html.fromstring(f.read())
        for data in doc.xpath('//div[@id="pageContent"]//div[@class="library-book"]'):
            if counter <= 0:
                break
            data = html.fromstring(html.tostring(data))

            id = None
            id_a = ''.join(data.xpath('//a[contains(@class, "library-title")]/@href'))
            if id_a:
                id = id_a.split('/')[-1]
            if not id:
                continue

            cover_url = ''.join(data.xpath('//img[contains(@class, "book-list-image")]/@src'))

            title = ''.join(data.xpath('.//a[contains(@class, "library-title")]/text()'))
            author = ''.join(data.xpath('.//a[@itemprop="author"]//text()'))

            price = ''.join(data.xpath('.//div[@class="subnote"]//text()'))
            if 'Price:' in price:
                try:
                    price = price.partition('Price:')[2]
                    price = re.sub('\s', ' ', price).strip()
                    price = price.split(' ')[0].strip()
                except Exception:
                    price = 'Unknown'
            if price == 'Free!':
                price = '$0.00'

            counter -= 1

            s = SearchResult()
            s.cover_url = cover_url
            s.title = title.strip()
            s.author = author.strip()
            s.price = price
            s.detail_item = '/books/view/' + id.strip()
            s.drm = SearchResult.DRM_UNLOCKED

            yield s


class SmashwordsStore(BasicStoreConfig, StorePlugin):

    def open(self, parent=None, detail_item=None, external=False):
        url = 'https://www.smashwords.com/'

        aff_id = '?ref=usernone'
        # Use Kovid's affiliate id 30% of the time.
        if random.randint(1, 10) in (1, 2, 3):
            aff_id = '?ref=kovidgoyal'

        detail_url = None
        if detail_item:
            detail_url = url + detail_item + aff_id
        url = url + aff_id

        if external or self.config.get('open_external', False):
            open_url(QUrl(url_slash_cleaner(detail_url if detail_url else url)))
        else:
            d = WebStoreDialog(self.gui, url, parent, detail_url)
            d.setWindowTitle(self.name)
            d.set_tags(self.config.get('tags', ''))
            d.exec_()

    def search(self, query, max_results=10, timeout=60):
        for a in search(query, max_results=max_results, timeout=timeout):
            yield a

    def get_details(self, search_result, timeout):
        url = 'https://www.smashwords.com/'

        br = browser()
        with closing(br.open(url + search_result.detail_item, timeout=timeout)) as nf:
            idata = html.fromstring(nf.read())
            search_result.formats = ', '.join(list(set(idata.xpath('//p//abbr//text()'))))
        return True


if __name__ == '__main__':
    import sys
    for r in search(sys.argv[-1]):
        print(r)
