# Define here the models for your scraped items
#
# See documentation in:
# https://docs.org/en/latest/topics/items.html
import os,Comics.settings as settings,logging
from scrapy.item import Item, Field
from Comics.utils import ComicPath
from Comics.utils import imageUtils
from itemloaders.processors import TakeFirst

# 繁体中文转为简体中文
def serialize_to_chinese(value): return ComicPath.chinese_convert(value)

# 将路径字符串转为合法路径
def serialize_to_fix_file(value): return ComicPath.fix_file_name(ComicPath.chinese_convert(value))

# 图片数据解析(私有方法)
def _serialize_to_images(value, result_type=None):
    (count, images_item, image_urls) = [1,[],[]]
    for image in value:
        try:
            (image_src, scramble) = [image.get("src"), image.get("scramble")]
        except:
            (image_src, scramble) = [image, False]
        count_image = settings.IMAGES_NAME_FORMAT.format(count)
#        suffix = "."+str(image_src).split(".")[-1]
        suffix = ".jpg"
        image_name = count_image + suffix
        if scramble:
            de_str = str(image_src).split("/")[-1].replace(suffix, "==")
            blocks_num = imageUtils.encodeImage(de_str)
            image_name = ComicPath.getFileScrambleImageName(count=count_image, block=blocks_num, suffix=suffix)
        if str(image_src).startswith('http'):
            images_item.append(image_name)
        else:
            images_item.append(image_src)
        image_urls.append(image_src)
        count += 1
    logging.debug(f"images_len: {len(images_item)}")
    if result_type == "image_urls": return image_urls
    else: return images_item

# 图像处理方法
def serialize_to_images(value): return _serialize_to_images(value) 

# 图像链接处理方法
def serialize_to_image_urls(value): return _serialize_to_images(value, result_type="image_urls") 

# ComicItem
class ComicItem(Item):
    # 工程
    current_project = Field()
    # link
    link = Field()
    # 全部章节
    chapters = Field()
    # 编号
    index = Field(output_processor=TakeFirst())
    # 漫画名
    name = Field(serializer=serialize_to_fix_file, output_processor=TakeFirst())
    # 章节名
    chapter = Field(serializer=serialize_to_fix_file, output_processor=TakeFirst())
    # 图片链接
    list_img = Field(serializer=serialize_to_images)
    # 作者
    author = Field(serialize_to_chinese=serialize_to_chinese, output_processor=TakeFirst())
    # 封面链接
    icon = Field(output_processor=TakeFirst())
    # 标签
    tags = Field(serializer=serialize_to_chinese, output_processor=TakeFirst())
    # 概述
    dep = Field(serializer=serialize_to_chinese, output_processor=TakeFirst())
    # 时间
    date = Field(output_processor=TakeFirst())
    # 流派
    genre = Field(output_processor=TakeFirst())
    # 年龄分级
    age_rating = Field(output_processor=TakeFirst())
    # 合计
    count = Field()
    # 旧图片
    images_old = Field(serializer=serialize_to_images)
    # 章节图像合集
    images = Field(serializer=serialize_to_images)
    # 图像链接
    image_urls = Field(serializer=serialize_to_image_urls)
    # 图像名
    images_name = Field()
    
    #章节链接
    chapter_href = Field()
    #章节API
    chapter_api = Field()

# 序列化-作者
def serializer_info_writer(value):
    (list_value, value) = [[], str(value).replace("&", " ")]
    for v in set(str(value).split(" ")):
        list_value.append(v)
    return ",".join(list_value)

# (私有)序列化-图像
def _serialize_info_images(value, result_type=None):
    images = []
    for image in value:
        if os.sep not in image:
            images.append(ComicPath().getFileScrambleImageSave(image,True,False))
    if result_type == "count":
        return len(images)
    else:
        return images
    
# 序列化-图像    
def serializer_info_images(value): return _serialize_info_images(value)

# 序列化-合计
def serializer_info_images_count(value): return _serialize_info_images(value, "count")

class ComicInfoItem(Item):
    Title       = Field(desc="章节名", info='chapter')
    Series      = Field(desc="漫画名", info='name')
    Number      = Field(desc="编号", info='index')
    SeriesGroup = Field(desc="别名")
    Summary     = Field(desc="概述", info='dep')
    Year        = Field(desc="年")
    Month       = Field(desc="月")
    Day         = Field(desc="日")
    Writer      = Field(desc="作者", info='author',serializer=serializer_info_writer)
    Publisher   = Field(desc="出版社")
    Genre       = Field(desc="流派", info='genre')
    Tags        = Field(desc="标签", info='tags')
    Web         = Field(desc="主页")
    PageCount   = Field(desc="总页数", info='count')
    LanguageISO = Field(desc="语言")
    AgeRating   = Field(desc="年龄分级", info='age_rating')
    Pages       = Field(desc="页码", info='images', serializer=serializer_info_images)
    # ComicInfo.xml and ComicChapter.json end