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

# Copyright 2015 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

"""Extract manga pages from http://kissmanga.com/"""

from .common import Extractor, Message
from .. import text, cloudflare
import re

class KissmangaExtractor(Extractor):

    category = "kissmanga"
    directory_fmt = ["{category}", "{manga}", "c{chapter:>03}{chapter-minor} - {title}"]
    filename_fmt = "{manga}_c{chapter:>03}{chapter-minor}_{page:>03}.{extension}"
    url_base = "http://kissmanga.com"

    def __init__(self, match):
        Extractor.__init__(self)
        self.url = match.group(0)


class KissmangaMangaExtractor(KissmangaExtractor):

    pattern = [r"(?:https?://)?(?:www\.)?kissmanga\.com/Manga/[^/]+/?$"]

    def items(self):
        cloudflare.bypass_ddos_protection(self.session, self.url_base)
        yield Message.Version, 1
        for chapter in self.get_chapters():
            yield Message.Queue, self.url_base + chapter

    def get_chapters(self):
        """Return a list of all chapter urls"""
        page = self.request(self.url).text
        pos = 0
        chapters = []
        while True:
            url, pos = text.extract(page, '<td>\n<a href="', '"', pos)
            if not url:
                chapters.reverse()
                return chapters
            chapters.append(url)


class KissmangaChapterExtractor(KissmangaExtractor):

    pattern = [r"(?:https?://)?(?:www\.)?kissmanga\.com/Manga/.+/.+\?id=\d+"]

    def items(self):
        cloudflare.bypass_ddos_protection(self.session, "http://kissmanga.com")
        page = self.request(self.url).text
        data = self.get_job_metadata(page)
        imgs = self.get_image_urls(page)
        data["count"] = len(imgs)
        yield Message.Version, 1
        yield Message.Directory, data
        for num, url in enumerate(imgs, 1):
            data["page"] = num
            yield Message.Url, url, text.nameext_from_url(url, data)

    def get_job_metadata(self, page):
        """Collect metadata for extractor-job"""
        manga, pos = text.extract(page, "Read manga\n", "\n")
        cinfo, pos = text.extract(page, "", "\n", pos)
        match = re.match(
            r"(?:Vol.0*(\d+) )?(?:Ch.)?0*(\d+)(?:\.0*(\d+))?(?:: (.+))?", cinfo)
        chminor = match.group(3)
        return {
            "category": self.category,
            "manga": manga,
            "volume": match.group(1) or "",
            "chapter": match.group(2),
            "chapter-minor": "."+chminor if chminor else "",
            "title": match.group(4) or "",
            "lang": "en",
            "language": "English",
        }

    @staticmethod
    def get_image_urls(page):
        """Extract list of all image-urls for a manga chapter"""
        pos = 0
        images = []
        while True:
            url, pos = text.extract(page, 'lstImages.push("', '"', pos)
            if not url:
                return images
            images.append(url)