from reportlab.lib.colors import HexColor
from reportlab.lib.enums import TA_CENTER, TA_LEFT, TA_RIGHT
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
from reportlab.lib.styles import ParagraphStyle as PS, ParagraphStyle
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import TableStyle, Paragraph
from reportlab.lib import colors

import pandas as pd
import numpy as np

from Report.scripts.path_tool import get_font_path

# rgb
darkGolden = '#C8A063'
lightGrey = '#F4F2EF'
darkGrey = '#A1A8AB'
Seashell4 = '#8B8682'

# font
pdfmetrics.registerFont(TTFont('pingbold', get_font_path(font='PingBold.ttf')))
pdfmetrics.registerFont(TTFont('SimHei', get_font_path(font='simhei.ttf')))
pdfmetrics.registerFont(TTFont('SIMSUN', get_font_path(font='SIMSUN.ttf')))
pdfmetrics.registerFont(TTFont('SourceHanSerifCN-Bold', get_font_path(font='SourceHanSerifCN-Bold.ttf')))

# toc
toc_style_1 = PS(name='TOCHeading1', fontName='pingbold', fontSize=16, leftIndent=20, firstLineIndent=-20,
                 spaceBefore=10, leading=16)
toc_style_2 = PS(name='TOCHeading2', fontName='pingbold', fontSize=12, leftIndent=40, firstLineIndent=-20,
                 spaceBefore=5, leading=12)

# table of content
table_content_style = PS(name="table_content_style", fontName="pingbold", fontSize=18, leading=40, alignment=TA_CENTER)

# cover
cover_space = PS(name='cover_space', fontSize=0, leading=75, alignment=TA_CENTER)
cover_company_style = PS(name="cover_company_style", fontName="pingbold", fontSize=30, leading=60, alignment=TA_CENTER)
cover_report_style = PS(name="cover_report_style", fontName="pingbold", fontSize=18, leading=400, alignment=TA_CENTER)
cover_fecr_style = PS(name="cover_fecr_style", fontName="pingbold", fontSize=18, leading=20, alignment=TA_CENTER)
cover_time_style = PS(name="cover_time_style", fontName="pingbold", fontSize=16, leading=40, alignment=TA_CENTER,
                      spaceBefore=20)

# chapter & section
chapter_style = PS(name="chapter_style", fontName="pingbold", fontSize=18, leading=40, alignment=TA_LEFT, spaceBefore=6)
section_style = PS(name="section_style", fontName="pingbold", fontSize=12, leading=30, alignment=TA_LEFT, spaceBefore=6,
                   textColor=HexColor(darkGolden))

# table
table_name = PS(name="table_name", fontName="pingbold", fontSize=8, leading=16, alignment=TA_CENTER, spaceBefore=2,
                textColor=HexColor(darkGrey))
table_unit = PS(name="table_unit", fontName="SimHei", fontSize=6, leading=8, alignment=TA_RIGHT, spaceBefore=2)
table_mark = PS(name="table_mark", fontName="SimHei", fontSize=6, leading=16, alignment=TA_LEFT, spaceBefore=2)
table_style = getSampleStyleSheet()
table_style.add(ParagraphStyle(fontName='SimHei', name='Song', leading=12, fontSize=8, spaceBefore=2, alignment=TA_CENTER))
table_style.add(ParagraphStyle(fontName='SimHei', name='Long', leading=12, fontSize=8, spaceBefore=2, alignment=TA_LEFT))
table_style.add(ParagraphStyle(fontName='SimHei', name='Longs', leading=9, fontSize=6, spaceBefore=2, alignment=TA_LEFT))
table_style.add(ParagraphStyle(fontName='SimHei', name='Songs', leading=9, fontSize=6, spaceBefore=2, alignment=TA_CENTER))
table_style.add(ParagraphStyle(fontName='SimHei', name='Song_small', leading=7, fontSize=5, spaceBefore=2, alignment=TA_CENTER))
# para
para_style_single = PS(name="para_style_single", fontName="SimHei", fontSize=8, leading=18, alignment=TA_LEFT,
                       spaceBefore=6)
para_style_normal = PS(name="para_style_normal", fontName="SimHei", fontSize=8, leading=18, alignment=TA_LEFT,
                       spaceBefore=6, firstLineIndent=16)
para_style_bold = PS(name="para_style_bold", fontName="pingbold", fontSize=10, leading=18, alignment=TA_LEFT,
                     spaceBefore=6)
para_bold_style = PS(name="para_style", fontName="pingbold", fontSize=9, leading=18, alignment=TA_LEFT, spaceBefore=6)


# table
def adjust_table_widths(list_):
    """
    计算表格每列宽度
    Parameters:
        list_: list 表格数据
    Returns:
        result: list 表格宽度列表
    """
    # 表格默认宽度
    total_width = 410
    df = pd.DataFrame()

    for list__ in list_:
        df = df.append(dict(zip(range(len(list__)), list__)), ignore_index=True)

    # 将列表中的数据替换成数据的长度，并将0置为NaN
    df = df.apply(lambda x: x.str.len())
    df = df.replace(0, np.NaN)

    # 计算每列数据长度平均值占总数的多少，并转为列表
    width_rate = (df.mean() / df.mean().sum()).values.tolist()
    # 列数
    cols_num = len(width_rate)

    # 判断首列是否小于默认宽度
    if width_rate[0] < 0.33:
        # 小于默认宽度，用当前数据重新计算各列宽度
        widths = [width_rate[0] * total_width] + [((1 - width_rate[0]) / (cols_num - 1)) * total_width] * (cols_num - 1)
    else:
        # 大于默认宽度，则继续使用默认宽度继续各列宽度
        widths = [0.33 * total_width] + [(0.67 / (cols_num - 1)) * total_width] * (cols_num - 1)

    return widths


def adjust_table_data(list_):
    """
    调整表格数据样式
    Parameters:
        list_: list 表格数据
    Returns:
        result: list 处理好的表格数据
    """
    for item_ in list_:
        if len(item_) > 6:
            for index in range(len(item_)):
                if item_[index] != '报告期' and index == 0:
                    item_[index] = Paragraph(item_[index], table_style['Longs'])
                else:
                    if index == 5 and len(item_[index]) > 10:
                        item_[index] = Paragraph(item_[index], table_style['Song_small'])
                    else:
                        item_[index] = Paragraph(item_[index], table_style['Songs'])
        else:
            for index in range(len(item_)):
                if item_[index] != '报告期' and index == 0:
                    item_[index] = Paragraph(item_[index], table_style['Long'])
                else:
                    item_[index] = Paragraph(item_[index], table_style['Song'])

    return list_


def adjust_table_style(list_):
    return TableStyle([
        # 边框
        ('INNERGRID', (0, 0), (-1, -1), 0.25, colors.grey),
        ('BOX', (0, 0), (-1, -1), 1, colors.black),
        # 文字
        ('FONTNAME', (0, 0), (-1, -1), 'SimHei'),
        ('FONTSIZE', (0, 0), (-1, -1), 8),

        ('TEXTCOLOR', (0, 0), (-1, 0), colors.white),
        # 排版
        ('ALIGN', (1, 0), (-1, -1), 'CENTER'),
        # 背景
        # ('BACKGROUND', (0, 0), (0, -1), HexColor(lightGrey)),
        ('BACKGROUND', (0, 0), (-1, 0), HexColor(darkGolden)),
    ])


def adjust_line_width(str_, font_size):
    mark_length = 400
    trans_length = mark_length / font_size - 1

    if len(str_) < trans_length:
        return str_

    n = 0
    s1 = ''
    s2 = ''
    for i in range(len(str_)):

        if n == 0 and str_[i] in ['，', '。', '、', '；']:
            continue

        if u'\u4e00' <= str_[i] <= u'\u9fa5':
            s2 += str_[i]
            n = n + 1
        elif str_[i] in ['！', '？', '｡', '＂', '＃', '＄', '％', '＆', '＇', '（', '）', '＊', '＋', '，', '－', '-', '／', '：', '；',
                         '＜', '＝', '＞', '＠', '［', '＼', '］', '＾', '＿', '｀', '｛', '｜', '｝', '～', '、', '〃', '》', '《', '「',
                         '」', '『', '』', '【', '】', '〔', '〕', '〖', '〗', '〝', '〞', '“', '”']:
            s2 += str_[i]
            n = n + 1
        else:
            s2 += str_[i]
            n = n + 0.5

        if (n > trans_length) and (i != len(str_) - 1):
            if str_[i + 1] in ['，', '。', '、', '；']:
                s2 += str_[i + 1]
                s2 += '<br/>'
                n = 0
                s1 += s2
                s2 = ''
            else:
                s2 += '<br/>'
                n = 0
                s1 += s2
                s2 = ''
        elif i == len(str_) - 1:
            s1 += s2

    return s1