zbparse/flask_app/routes/get_deviation.py

# flask_app/routes/get_deviation.py

from flask import Blueprint, jsonify, Response, g
import json
import os
from flask_app.general.format_change import download_file
from flask_app.routes.偏离表main import get_tech_and_business_deviation
from flask_app.routes.utils import generate_deviation_response, validate_and_setup_logger
from flask_app.ConnectionLimiter import require_connection_limit
get_deviation_bp = Blueprint('get_deviation', __name__)
@get_deviation_bp.route('/get_deviation', methods=['POST'])
@validate_and_setup_logger
@require_connection_limit(timeout=720)
def get_deviation():
    logger = g.logger
    unique_id = g.unique_id
    file_url = g.file_url
    zb_type = g.zb_type

    try:
        logger.info("call /get_deviation: 开始解析 URL: " + file_url)
        if zb_type not in [1, 2]:
            logger.error(f"无效的 zb_type: {zb_type}. 期望 zb_type: 1 或 2")
            return jsonify({
                'error': 'Invalid zb_type',
                'message': '此端点仅支持 zb_type 1 或 2'
            }), 400
        else:
            # 直接下载并处理文件
            output_folder = g.output_folder
            filename = "ztbfile"
            downloaded_filename = os.path.join(output_folder, filename)

            # 下载文件
            downloaded_filepath, file_type = download_file(file_url, downloaded_filename)
            if downloaded_filepath is None or file_type == 4:
                logger.error("Unsupported file type or failed to download file")
                return jsonify({'error': 'Unsupported file type or failed to download file'}), 500

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

            # 处理文件
            tech_deviation, tech_star_deviation, business_deviation, business_star_deviation, zigefuhe_deviation, proof_materials = get_tech_and_business_deviation(
                downloaded_filepath, file_type, unique_id, output_folder,zb_type)

            # 生成偏差响应
            tech_deviation_response, tech_deviation_star_response, zigefuhe_deviation_response, shangwu_deviation_response, shangwu_star_deviation_response, proof_materials_response = generate_deviation_response(
                tech_deviation, tech_star_deviation, business_deviation, business_star_deviation, zigefuhe_deviation, proof_materials, logger)

            final_response = {
                'message': 'processed successfully',
                'filename': 'END',
                'data': 'END'
            }

            # 流式返回数据
            def generate():
                yield f"data: {json.dumps(tech_deviation_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(tech_deviation_star_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(zigefuhe_deviation_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(shangwu_deviation_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(shangwu_star_deviation_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(proof_materials_response, ensure_ascii=False)}\n\n"
                yield f"data: {json.dumps(final_response, ensure_ascii=False)}\n\n"

            return Response(generate(), mimetype='text/event-stream')
    except Exception as e:
        logger.error('发生异常: ' + str(e))
        return jsonify({'error': str(e)}), 500