import datetime
import os
import time

from flask import Blueprint, request

from Certificate.PdfCertificate import CertificateGenerator
from Certificate.scripts.common import get_certificate_data
from Certificate.scripts.path_tool import get_gen_report_path
from Certificate.db import upload_pdf, upload_esg_pdf
from common.scripts import verify_token

certificate_route = Blueprint('certificate', __name__)


@certificate_route.route('/generate_certificate', methods=['POST'])
@verify_token
def gen_certificate():
    """
    生成综合信用评价证书
    Parameters:
        company str 企业名称
        cid str 企业ID
        rid str 评价ID
        type str 证书类型
    Returns:
        result: 证书FileID
    """

    def certificate(param):
        """
        生成证书pdf
        Parameters:
            param: dict 证书所需数据
        Returns:
            res: 处理成功返回报告FileID；处理失败返回False
        """
        # 生成PDF报告文件，以时间戳命名，临时存储
        certificate_file_name = '{}_{}.pdf'.format(req_body['company'], datetime.datetime.now().strftime('%Y%m%d'))
        pdf_report = CertificateGenerator(name=certificate_file_name, text_data=param)
        if len(param) > 5:
            pdf_report.gen_esg()
        else:
            pdf_report.gen()

        return certificate_file_name

    def save_certificate(param):
        """
        保存证书pdf
        Parameters:
            param: 证书pdf
        Returns:
            res: 处理成功返回报告FileID；处理失败返回False
        """
        # 保存PDF报告文件，删除临时存储的报告
        if len(text_data) > 5:
            file_id = upload_esg_pdf(param)
        else:
            file_id = upload_pdf(param)
        certificate_path = get_gen_report_path(name=param)
        os.remove(certificate_path)

        # 保存PDF报告成功，返回FileID;保存PDF报告文件失败，返回False
        return file_id if file_id else False

    # Parameters
    req_body = request.json  # 接收的json格式请求体
    text_data = get_certificate_data(req_body)
    certifice_pdf = certificate(text_data)
    result = save_certificate(certifice_pdf)

    if result is not False:
        return {"info": "生成证书成功", "result": {"FileID": result}}, 200
    else:
        return {"info": "生成证书失败"}, 210