zbparse/flask_app/main/start_up.py

import logging
import shutil
import time
import uuid
from datetime import datetime, timedelta

from flask import Flask, request, jsonify, Response, stream_with_context, g
import json
import os
from flask_app.main.download import download_file
from flask_app.main.招标文件解析 import main_processing

app = Flask(__name__)


class CSTFormatter(logging.Formatter):
    """自定义的 Formatter，将日志的时间戳调整为中国标准时间（UTC+8）"""

    def formatTime(self, record, datefmt=None):
        ct = datetime.fromtimestamp(record.created) + timedelta(hours=8)
        if datefmt:
            s = ct.strftime(datefmt)
        else:
            try:
                s = ct.strftime("%Y-%m-%d %H:%M:%S")
                if self.usesTime():
                    s = f"{s},{record.msecs:03d}"
            except ValueError:
                s = ct.strftime("%Y-%m-%d %H:%M:%S")
        return s


@app.before_request
def before_request():
    # 每个请求开始前初始化 logger
    create_logger()  # 确保这个函数中设置了 g.logger


def create_logger():
    unique_id = str(uuid.uuid4())
    g.unique_id = unique_id
    output_folder = f"flask_app/static/output/{unique_id}"
    os.makedirs(output_folder, exist_ok=True)
    log_filename = "log.txt"
    log_path = os.path.join(output_folder, log_filename)
    logger = logging.getLogger(unique_id)
    if not logger.handlers:
        file_handler = logging.FileHandler(log_path)
        file_formatter = CSTFormatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        file_handler.setFormatter(file_formatter)
        logger.addHandler(file_handler)
        stream_handler = logging.StreamHandler()
        stream_handler.setFormatter(logging.Formatter('%(message)s'))
        logger.addHandler(stream_handler)
        logger.setLevel(logging.INFO)
    g.logger = logger


# @app.route('/upload', methods=['POST'])
# def zbparse():
#     logger=g.logger
#     file_url = validate_request()
#     if isinstance(file_url, tuple):  # Check if the returned value is an error response
#         return file_url
#     try:
#         logger.info("starting parsing url:" + file_url)
#         final_json_path, output_folder= download_and_process_file(file_url)
#         if not final_json_path:
#             return jsonify({'error': 'File processing failed'}), 500
#         response = generate_response(final_json_path)  # 先获取响应内容
#         # remove_directory(output_folder)  # 然后删除文件夹
#         return response  # 最后返回获取的响应
#     except Exception as e:
#         logger.error('Exception occurred: ' + str(e))  # 使用全局 logger 记录
#         return jsonify({'error': str(e)}), 500


# 流式
@app.route('/upload', methods=['POST'])
def zbparse():

    logger = g.logger
    # 获取并显示接收到的 JSON 数据
    received_data = request.get_json()
    app.logger.info("Received JSON data: " + str(received_data))
    file_url = validate_request()
    if isinstance(file_url, tuple):  # Check if the returned value is an error response
        return file_url
    try:
        logger.info("starting parsing url:" + file_url)
        return Response(stream_with_context(process_and_stream(file_url)), content_type='text/event-stream')
    except Exception as e:
        logger.error('Exception occurred: ' + str(e))
        return jsonify({'error': str(e)}), 500


# 分段返回
def process_and_stream(file_url):
    logger = g.logger
    unique_id = g.unique_id
    output_folder = f"flask_app/static/output/{unique_id}"
    filename = "ztbfile"
    downloaded_filename = os.path.join(output_folder, filename)

    downloaded_filepath, file_type = download_file(file_url, downloaded_filename)

    if downloaded_filepath is None or file_type == 3:
        logger.error("Unsupported file type or failed to download file")
        error_response = {
            'message': 'File processing failed',
            'filename': None,
            'data': json.dumps({'error': 'File processing failed'})
        }
        yield f"data: {json.dumps(error_response)}\n\n"
        return

    logger.info("Local file path: " + downloaded_filepath)

    combined_data = {}
    for data in main_processing(output_folder, downloaded_filepath, file_type, unique_id):
        response = {
            'message': 'Processing',
            'filename': os.path.basename(downloaded_filepath),
            'data': data
        }
        yield f"data: {json.dumps(response)}\n\n"

        # 解析数据并添加到 combined_data
        parsed_data = json.loads(data.split('data: ')[1])
        for outer_key, inner_dict in parsed_data.items():
            if isinstance(inner_dict, dict):
                # 获取内层字典的第一个（也是唯一的）键值对
                inner_key, inner_value = next(iter(inner_dict.items()))
                if outer_key not in combined_data:
                    combined_data[outer_key] = {}
                combined_data[outer_key][inner_key] = inner_value
            else:
                # 处理 evaluation_standards 的特殊情况
                combined_data[outer_key] = inner_dict

    # 发送整合后的完整数据
    complete_response = {
        'message': 'Combined data',
        'filename': os.path.basename(downloaded_filepath),
        'data': combined_data
    }
    yield f"data: {json.dumps(complete_response, ensure_ascii=False)}\n\n"

    # 发送最终响应
    final_response = {
        'message': 'File uploaded and processed successfully',
        'filename': os.path.basename(downloaded_filepath),
        'data': 'END'
    }
    yield f"data: {json.dumps(final_response)}\n\n"


def validate_request():
    if not request.is_json:
        return jsonify({'error': 'Missing JSON in request'}), 400
    file_url = request.json.get('file_url')
    if not file_url:
        return jsonify({'error': 'No file URL provided'}), 400
    return file_url


def download_and_process_file(file_url):
    logger = g.logger
    unique_id = g.unique_id
    output_folder = f"flask_app/static/output/{unique_id}"  # 直接使用全局 unique_id 构建路径
    filename = "ztbfile"
    downloaded_filename = os.path.join(output_folder, filename)

    # 下载文件，假设 download_file 函数已正确处理异常并返回文件路径
    downloaded_filepath, file_type = download_file(file_url, downloaded_filename)

    if downloaded_filepath is None or file_type == 3:
        logger.error("Unsupported file type or failed to download file")
        return None, output_folder

    logger.info("Local file path: " + downloaded_filepath)
    processed_file_path = main_processing(output_folder, downloaded_filepath, file_type, unique_id)
    return processed_file_path, output_folder


@app.route('/api/test_zbparse', methods=['POST'])
def test_zbparse():
    try:
        return Response(stream_with_context(test_process_and_stream()), content_type='text/event-stream')
    except Exception as e:
        app.logger.error('Exception occurred: ' + str(e))
        return jsonify({'error': str(e)}), 500


def test_process_and_stream():
    # 模拟七段数据，每段包含指定的中文键名和更多详细数据
    data_segments = [
        {
            "base_info": {
                "基础信息": {
                    "project_name": "测试项目1",
                    "project_code": "TP001",
                    "project_manager": "张三",
                    "start_date": "2024-01-10",
                    "end_date": "2024-12-31"
                }
            }
        },
        {
            "qualification_review": {
                "资格审查": {
                    "review_criteria": ["公司资质", "过往业绩", "财务报表"],
                    "required_documents": ["营业执照", "资质证书", "近三年财务报告"],
                    "minimum_requirements": {
                        "company_age": "至少5年",
                        "past_projects": "至少3个大型项目"
                    }
                }
            }
        },
        {
            "technical_standards": {
                "技术标": {
                    "technical_requirements": ["设备质量要求", "施工工艺", "安全标准"],
                    "materials_list": ["钢筋", "水泥", "电缆"],
                    "equipment_specs": {
                        "excavator": "型号X123",
                        "concrete_mixer": "型号Y456"
                    }
                }
            }
        },
        {
            "commercial_standards": {
                "商务标": {
                    "pricing_method": "固定总价",
                    "payment_schedule": ["30%合同签订", "40%中期支付", "30%项目完成支付"],
                    "contract_conditions": {
                        "warranty_period": "2年",
                        "penalty_clauses": "延期每周罚款5%"
                    }
                }
            }
        },
        {
            "invalid_requirements": {
                "无效标与废标项": {
                    "common_issues": ["未按要求提交保证金", "技术标不达标"],
                    "invalidation_reasons": {
                        "missing_documents": "缺少必要文件",
                        "unqualified_technical_specs": "技术规格不合要求"
                    }
                }
            }
        },
        {
            "bidding_documents_requirements": {
                "投标文件要求": {
                    "file_format": "PDF",
                    "submission_deadline": "2024-08-01 17:00",
                    "submission_location": "北京市某某大厦5楼",
                    "required_sections": ["公司简介", "技术方案", "商务报价"]
                }
            }
        },
        {
            "opening_bid": {
                "开评定标流程": {
                    "bid_opening_time": "2024-09-01 10:00",
                    "location": "会议室A",
                    "evaluation_criteria": ["价格", "技术能力", "项目经验"],
                    "evaluation_process": {
                        "first_round": "资格审查",
                        "second_round": "技术评分",
                        "final_round": "商务报价评定"
                    }
                }
            }
        }
    ]

    filename = "test_file.pdf"

    for i, data in enumerate(data_segments, 1):
        response = {
            'message': f'Processing segment {i}',
            'filename': filename,
            'data': data
        }
        yield f"data: {json.dumps(response, ensure_ascii=False)}\n\n"
        time.sleep(3)  # 每隔5秒发送一段数据

    # 在结束信号之前发送完整的数据
    combined_data = {}
    for segment in data_segments:
        for outer_key, inner_dict in segment.items():
            # 获取内层字典的第一个（也是唯一的）键值对
            inner_key, inner_value = next(iter(inner_dict.items()))
            combined_data[inner_key] = inner_value

    # 发送完整的大字典
    complete_response = {
        'message': 'Combined data',
        'filename': filename,
        'data': combined_data
    }
    yield f"data: {json.dumps(complete_response, ensure_ascii=False)}\n\n"

    # 发送结束信号
    final_response = {
        'message': 'File processed successfully',
        'filename': filename,
        'data': 'END'
    }
    yield f"data: {json.dumps(final_response, ensure_ascii=False)}\n\n"


def generate_response(final_json_path):
    logger = g.logger
    # 检查final_json_path是否为空或None
    if not final_json_path:
        logger.error('Empty or None path provided for final_json.')
        return jsonify({'error': 'No path provided for final_json.'}), 400
    if not os.path.exists(final_json_path):
        logger.error('final_json not found at path: ' + final_json_path)
        return jsonify({'error': 'final_json not found'}), 404
    with open(final_json_path, 'r', encoding='utf-8') as f:
        logger.info('final_json_path:' + final_json_path)
        zbparse_data = json.load(f)
        json_str = json.dumps(zbparse_data, ensure_ascii=False)
    return jsonify({
        'message': 'File uploaded and processed successfully',
        'filename': os.path.basename(final_json_path),
        'data': json_str
    })


# @app.route('/get_json', methods=['POST'])
# def testjson():
#     final_json_path="C:\\Users\\Administrator\\Desktop\\fsdownload\\temp4\\fd55f067-2cf6-475c-b7ce-4498f6606bf6\\final_result.json"
#     with open(final_json_path, 'r', encoding='utf-8') as f:
#         print('final_json_path:'+final_json_path)
#         zbparse_data = json.load(f)
#         json_str = json.dumps(zbparse_data, ensure_ascii=False)
#         print(json_str)
#     return jsonify({
#         'message': 'File uploaded and processed successfully',
#         'filename': os.path.basename(final_json_path),
#         'data': json_str
#     })


def remove_directory(path):
    logger = g.logger
    try:
        shutil.rmtree(path)
        logger.info(f"Successfully removed directory: {path}")  # 使用全局 logger 记录
    except Exception as e:
        logger.error(f"Failed to remove directory {path}: {str(e)}")  # 使用全局 logger 记录


if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=5000)