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

# Copyright 2016-2018 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 images from https://imagefap.com/"""

from .common import Extractor, Message
from .. import text
import json


class ImagefapExtractor(Extractor):
    """Base class for imagefap extractors"""
    category = "imagefap"
    directory_fmt = ["{category}", "{gallery_id} {title}"]
    filename_fmt = "{category}_{gallery_id}_{name}.{extension}"
    archive_fmt = "{gallery_id}_{image_id}"
    root = "https://www.imagefap.com"


class ImagefapGalleryExtractor(ImagefapExtractor):
    """Extractor for image galleries from imagefap.com"""
    subcategory = "gallery"
    pattern = [(r"(?:https?://)?(?:www\.)?imagefap\.com/"
                r"(?:gallery\.php\?gid=|gallery/|pictures/)(\d+)")]
    test = [
        ("https://www.imagefap.com/pictures/7102714", {
            "url": "268995eac5d01ddecd0fe58cfa9828390dc85a84",
            "keyword": "b65c310d75269cb6dcc32c3fc1bdcf39bea45342",
            "content": "694a0a57385980a6f90fbc296cadcd6c11ba2dab",
        }),
        ("https://www.imagefap.com/gallery/5486966", {
            "url": "14906b4f0b8053d1d69bc730a325acb793cbc898",
            "keyword": "b84da0543c2d1f848bf5e4c2950dd4f4543a1e0c",
        }),
        ("https://www.imagefap.com/gallery.php?gid=7102714", None),
    ]

    def __init__(self, match):
        ImagefapExtractor.__init__(self)
        self.gid = match.group(1)
        self.image_id = ""

    def items(self):
        url = "{}/pictures/{}/".format(self.root, self.gid)
        page = self.request(url).text
        data = self.get_job_metadata(page)
        yield Message.Version, 1
        yield Message.Directory, data
        for url, image in self.get_images():
            data.update(image)
            yield Message.Url, url, data

    def get_job_metadata(self, page):
        """Collect metadata for extractor-job"""
        data, pos = text.extract_all(page, (
            ("section" , '<meta name="description" content="', '"'),
            ("title"   , '<title>Porn pics of ', ' (Page 1)</title>'),
            ("uploader", '>Uploaded by ', '</font>'),
            ("count"   , ' 1 of ', ' pics"'),
        ), values={"gallery_id": self.gid})
        self.image_id = text.extract(page, 'id="img_ed_', '"', pos)[0]
        data["title"] = text.unescape(data["title"])
        return data

    def get_images(self):
        """Collect image-urls and -metadata"""
        num = 0
        url = "{}/photo/{}/".format(self.root, self.image_id)
        params = {"gid": self.gid, "idx": 0, "partial": "true"}
        while True:
            pos = 0
            page = self.request(url, params=params).text
            for _ in range(24):
                imgurl, pos = text.extract(page, '<a href="', '"', pos)
                if not imgurl:
                    return
                num += 1
                _, imgid, name = imgurl.rsplit("/", 2)
                data = {"image_id": imgid, "num": num}
                yield imgurl, text.nameext_from_url(name, data)
            params["idx"] += 24


class ImagefapImageExtractor(ImagefapExtractor):
    """Extractor for single images from imagefap.com"""
    subcategory = "image"
    pattern = [r"(?:https?://)?(?:www\.)?imagefap\.com/photo/(\d+)"]
    test = [("https://www.imagefap.com/photo/1369341772/", {
        "url": "b31ee405b61ff0450020a1bf11c0581ca9adb471",
        "keyword": "26ae84575067b8231878ec1a2d1e14a0fbcea865",
    })]

    def __init__(self, match):
        ImagefapExtractor.__init__(self)
        self.image_id = match.group(1)

    def items(self):
        info = self.load_json()
        data = self.get_job_metadata(info)
        yield Message.Version, 1
        yield Message.Directory, data
        yield Message.Url, info["contentUrl"], data

    def get_job_metadata(self, info):
        """Collect metadata for extractor-job"""
        parts = info["contentUrl"].rsplit("/", 3)
        return text.nameext_from_url(parts[3], {
            "title": text.unescape(info["name"]),
            "section": info["section"],
            "uploader": info["author"],
            "date": info["datePublished"],
            "width": info["width"],
            "height": info["height"],
            "gallery_id": parts[1],
            "image_id": parts[2],
        })

    def load_json(self):
        """Load the JSON dictionary associated with the image"""
        url = "{}/photo/{}/".format(self.root, self.image_id)
        page = self.request(url).text
        section  , pos = text.extract(
            page, '<meta name="description" content="', '"')
        json_data, pos = text.extract(
            page, '<script type="application/ld+json">', '</script>', pos)
        json_dict = json.loads(json_data)
        json_dict["section"] = section
        return json_dict


class ImagefapUserExtractor(ImagefapExtractor):
    """Extractor for all galleries from a user at imagefap.com"""
    subcategory = "user"
    categorytransfer = True
    pattern = [(r"(?:https?://)?(?:www\.)?imagefap\.com/"
                r"profile(?:\.php\?user=|/)([^/]+)"),
               (r"(?:https?://)?(?:www\.)?imagefap\.com/"
                r"usergallery\.php\?userid=(\d+)")]
    test = [("https://www.imagefap.com/profile/Mr%20Bad%20Example/galleries", {
        "url": "2d79fe2bd98d02d30378fe30e966d47f72bd4760",
    })]

    def __init__(self, match):
        ImagefapExtractor.__init__(self)
        try:
            self.user_id = int(match.group(1))
            self.user = None
        except ValueError:
            self.user_id = None
            self.user = match.group(1)

    def items(self):
        yield Message.Version, 1
        for gid, name in self.get_gallery_data():
            url = "{}/gallery/{}".format(self.root, gid)
            data = {"gallery_id": text.parse_int(gid), "title": name}
            yield Message.Queue, url, data

    def get_gallery_data(self):
        """Yield all gallery_ids of a specific user"""
        folders = self.get_gallery_folders()
        url = "{}/ajax_usergallery_folder.php".format(self.root)
        params = {"userid": self.user_id}
        for folder_id in folders:
            params["id"] = folder_id
            page = self.request(url, params=params).text

            pos = 0
            while True:
                gid, pos = text.extract(page, '<a  href="/gallery/', '"', pos)
                if not gid:
                    break
                name, pos = text.extract(page, "<b>", "<", pos)
                yield gid, name

    def get_gallery_folders(self):
        """Create a list of all folder_ids of a specific user"""
        if self.user:
            url = "{}/profile/{}/galleries".format(self.root, self.user)
        else:
            url = "{}/usergallery.php?userid={}".format(
                self.root, self.user_id)
        page = self.request(url).text
        self.user_id, pos = text.extract(page, '?userid=', '"')
        folders, pos = text.extract(page, ' id="tgl_all" value="', '"', pos)
        return folders.split("|")[:-1]