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

# Copyright 2020 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.

"""Extractors for https://bcy.net/"""

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


class BcyExtractor(Extractor):
    """Base class for bcy extractors"""
    category = "bcy"
    directory_fmt = ("{category}", "{user[id]} {user[name]}")
    filename_fmt = "{post[id]} {id}.{extension}"
    archive_fmt = "{post[id]}_{id}"
    root = "https://bcy.net"

    def __init__(self, match):
        Extractor.__init__(self, match)
        self.item_id = match.group(1)

    def items(self):
        sub = re.compile(r"^https?://p\d+-bcy\.byteimg\.com/img/banciyuan").sub
        iroot = "https://img-bcy-qn.pstatp.com"

        for post in self.posts():
            if not post["image_list"]:
                continue

            data = {
                "user": {
                    "id"     : post["uid"],
                    "name"   : post["uname"],
                    "avatar" : sub(iroot, post["avatar"].partition("~")[0]),
                },
                "post": {
                    "id"     : text.parse_int(post["item_id"]),
                    "tags"   : [t["tag_name"] for t in post["post_tags"]],
                    "date"   : text.parse_timestamp(post["ctime"]),
                    "parody" : post["work"],
                    "content": post["plain"],
                    "likes"  : post["like_count"],
                    "shares" : post["share_count"],
                    "replies": post["reply_count"],
                },
            }

            yield Message.Directory, data
            for data["num"], image in enumerate(post["image_list"], 1):
                data["id"] = image["mid"]
                data["width"] = image["w"]
                data["height"] = image["h"]

                url = image["path"]
                if not url.startswith(iroot):
                    url = sub(iroot, url.partition("~")[0])
                data["url"] = url

                yield Message.Url, url, text.nameext_from_url(url, data)


class BcyUserExtractor(BcyExtractor):
    """Extractor for user timelines"""
    subcategory = "user"
    pattern = r"(?:https?://)?bcy\.net/u/(\d+)"
    test = ("https://bcy.net/u/1933712", {
        "pattern": r"https://img-bcy-qn.pstatp.com/\w+/\d+/post/\w+/\w+.jpg",
        "count": ">= 25",
    })

    def posts(self):
        url = self.root + "/apiv3/user/selfPosts"
        params = {
            "uid": self.item_id,
            "since": None,
            #  "_signature": None,
        }

        while True:
            data = self.request(url, params=params).json()

            item = None
            for item in data["data"]["items"]:
                yield item["item_detail"]

            if not item:
                return
            params["since"] = item["since"]


class BcyPostExtractor(BcyExtractor):
    """Extractor for individual posts"""
    subcategory = "post"
    pattern = r"(?:https?://)?bcy\.net/item/detail/(\d+)"
    test = ("https://bcy.net/item/detail/6355835481002893070", {
        "url": "301202375e61fd6e0e2e35de6c3ac9f74885dec3",
        "count": 1,
        "keyword": {
            "user": {
                "id"     : 1933712,
                "name"   : "wukloo",
                "avatar" : "re:https://img-bcy-qn.pstatp.com/Public/Upload/",
            },
            "post": {
                "id"     : 6355835481002893070,
                "tags"   : list,
                "date"   : "type:datetime",
                "parody" : "东方PROJECT",
                "content": "re:根据微博的建议稍微做了点修改",
                "likes"  : int,
                "shares" : int,
                "replies": int,
            },
            "id": 8330182,
            "num": 1,
            "width" : 3000,
            "height": 1687,
            "filename": "712e0780b09011e696f973c3d1568337",
            "extension": "jpg",
        },
    })

    def posts(self):
        url = self.root + "/item/detail/" + self.item_id
        page = self.request(url).text

        data = json.loads(
            text.extract(page, 'JSON.parse("', '");')[0]
            .replace('\\\\u002F', '/')
            .replace('\\"', '"')
        )["detail"]

        post = data["post_data"]
        post["image_list"] = post["multi"]
        post["plain"] = text.parse_unicode_escapes(post["plain"])
        post.update(data["detail_user"])
        return (post,)